猫薄荷为何让猫“疯狂”?

猫薄荷为何让猫“疯狂”?Why Does Catnip Make Cats Go Crazy?文本难度:考研刘立军供稿Of the many bewildering behaviors cats display, one of the strangest is their obsession with a specific species of plant. After just one whiff, even the most stoic cat can start pawing, drooling, biting, and wriggling in a state of pure feline euphoria. So, why do cats go crazy for catnip? This is the question cat behavior expert Masao Miyazaki and chemist Toshio Nishikawa set out to answer in 2013. Along with their research teams from Iwate and Nagoya University, they began by studying silvervine – a plant that sparks a similar response to catnip.猫咪有着许多令人费解的行为,其中最奇特的莫过于对某一特定植物的痴迷。即便是最冷静自持的猫,哪怕只是闻上一口,也会瞬间陷入抓挠、流口水、啃咬、翻滚的状态,沉浸在纯粹的猫咪欢愉中。那么,猫咪究竟为什么会为猫薄荷神魂颠倒?2013年,猫咪行为学家宫崎正夫与化学家西川俊夫便带着这一问题展开了研究。他们与来自岩手大学与名古屋大学的研究团队携手,先从木天蓼这种植物入手——这是一种同样能在猫身上引发和猫薄荷相似反应的植物。First, the researchers painstakingly extracted chemical compounds from the plant and dribbled various combinations of them onto filter paper. Then they brought in some cats and studied which compounds they were drawn to. Overwhelmingly, their feline testers pounced on the papers containing nepetalactol. And when Miyazaki and his student Reiko Uenoyama ran blood tests on the cats who’d interacted with nepetalactol, they found their systems were flooded with endorphins. These hormones block pain signals, relieve stress, and generally create a happy, calming effect. And catnip triggers the same endorphin rush with a similar chemical called nepetalactone, and it’s this flood of happy hormones that gives catnip and silvervine their signature drug-like response.研究人员先是费尽心力,从木天蓼中提取各类化合物,再把不同配比的提取物滴在滤纸上。随后,他们找来猫咪,观察哪些化学成分会吸引它们。结果显而易见,绝大多数受试猫咪都径直扑向含有荆芥内酯醇(nepetalactol)的滤纸。宫崎正夫和他的学生上野山怜子对接触过荆芥内酯醇的猫咪进行血液检测,发现它们体内会大量分泌内啡肽。这类激素能够阻断痛觉信号、缓解压力,带来愉悦、镇定的感受。而猫薄荷则是借助一种结构相近的物质——荆芥内酯,同样能刺激猫体内大量释放内啡肽。正是这种快乐激素的迸发,让猫薄荷和木天蓼产生了标志性的、类似药物带来的反应。These compounds don’t just trigger this effect in small cats. When the researchers brought nepetalactol-treated filter paper to a few zoos, leopards, lynxes, and jaguars all dove face-first into the compound. This was big news. If these different cat species reacted to nepetalactol the same way, the response was likely a shared evolutionary trait, potentially something important to cat survival that stretched back millions of years. When the silvervine researchers presented their work at a conference, one evolutionary biologist raised a compelling theory. In chemical terms, both nepetalactol and nepetalactone are classified as iridoids – a type of natural compound known to contain insect-repelling properties. So perhaps cats rubbing their faces in silvervine and catnip were applying an ancient form of bug spray.这类化合物并非只对小型猫科动物生效。当研究人员把滴有荆芥内酯醇的滤纸带到几家动物园时,豹子、猞猁和美洲豹全都一头埋上去嗅闻。这是一项重大发现。既然这么多不同种类的猫科动物都对荆芥内酯醇产生相同反应,说明该行为极有可能是共有的进化特征,或许关乎猫科动物生存的重要本能,其根源可追溯至数百万年前。当木天蓼研究团队在学术会议上展示成果时,一位进化生物学家提出了一个极具说服力的假说:从化学分类来看,荆芥内酯醇与荆芥内酯都属于环烯醚萜类化合物,这类天然物质具备驱虫特性。所以,猫咪把脸在木天蓼和猫薄荷上蹭来蹭去的行为,或许正是在涂抹一种古老的驱虫剂。To test this, researchers set up cages of mosquitoes that cats could stick their heads into. And sure enough, the cats that had been treated with nepetalactol got fewer mosquito bites than the cats in the control group. The same effect was true for the scientists who’d volunteered their arms in solidarity with their feline subjects. These mosquito-repelling properties are currently our best explanation for why cats love silvervine and catnip. But researchers still had one more question: in their state of euphoria, cats tend to vigorously bite, lick, and rub against these plants. But do cats really need to go this crazy to get their bug-repelling effects?为验证这一猜想,研究人员搭建了放有蚊子的笼子,猫咪可以把头伸进笼内。结果证实,体表接触过荆芥内酯醇的猫咪,被蚊子叮咬的次数少于对照组。就连主动挽起袖子、甘愿和猫咪一同参与实验的科研人员,手臂上的叮咬次数也同样大幅减少。目前,这种驱蚊特性是我们解释猫咪喜爱木天蓼与猫薄荷最合理的假说。但研究者还有一个疑问:当猫咪在亢奋状态下,往往会使劲啃咬、舔舐并用力蹭擦这类植物。可它们真的需要表现得如此“上头”,才能真正发挥驱虫功效吗?To investigate rubbing, they provided cats with filter papers treated with microscopic amounts of nepetalactol. And sure enough, even these tiny doses made the papers irresistible, suggesting that microscopic amounts of bug repellent can be transferred by rubbing alone. As for biting and licking, the researchers found that when cats damage the plant, the leaves actually produce more mosquito-repellent chemicals. So your cat isn’t just ripping open their bags of catnip to be annoying; their evolutionary instincts are just trying to get even more of that bug protection.为研究摩擦行为,研究人员向猫咪提供了只沾有微量荆芥内酯醇的滤纸。不出所料,即便剂量微乎其微,这些滤纸依旧对猫咪有着极强吸引力。这说明,仅靠蹭一蹭,就能沾上微量的驱虫物质。至于啃咬和舔舐,研究人员发现,当猫咪啃破植物组织时,叶片反而会生成更多驱蚊化学成分。所以,你的猫咪扒开猫薄荷袋子并不是故意捣乱,而是在进化本能驱使下,想要获取更多驱虫保护。Cats are far from the only animal to use natural plants for purposes like this. Apes swallow scratchy and hairy leaves to dislodge parasites from their guts. Sheep munch on tannin-rich plants to kill intestinal worms, and monarch butterflies use toxic milkweed to kill parasites that normally impair their flight. Just like cats’ ability to find mosquito repellent, these behaviors can help humans identify useful plants and ingredients in the natural world. So, the next time you see your feline friend on a catnip binge, don’t worry – it’s only medicinal.并非只有猫咪会利用天然植物达成这类目的。猿类会直接吞下粗糙多毛的叶片,借此刮擦并排出肠道寄生虫;绵羊会食用富含单宁的植物来杀灭肠道蠕虫;帝王蝶则会采食有毒的马利筋,清除会削弱自身飞行能力的体内寄生虫。和猫咪寻找天然驱蚊植物的本能一样,这类动物行为,也能帮助人类发掘自然界里有价值的植物与成分。所以,下次看到你的猫主子沉迷猫薄荷,不必担心——这只是它在“用药”而已。【词汇】1.stoic adj. 坚忍的;沉着的2.whiff n. 一闻;一股气味3.drool v. 流口水4.wriggle v. 扭动;蠕动5.feline adj. 猫科的;猫的6.euphoria n. 欣快;极度愉悦7.catnip n. 猫薄荷8.painstaking adj. 煞费苦心的;极其仔细的9.dribble v. 使滴下;滴落10.pounce v. 猛扑;突然袭击11.endorphin n. 内啡肽12.lynx n. 猞猁13.jaguar n. 美洲豹14.dislodge v. 驱逐;移开15.munch v. 大声咀嚼16.intestinal adj. 肠的17.milkweed n. 马利筋(一种植物)18.binge n. 狂欢;放纵行为 (本文图片来源于摄图网,版权归摄图网所有)

双语阅读 | 推行禁烟竟如此艰难

推行禁烟竟如此艰难It’s Maddeningly Difficult to Ban Smoking文本难度:六级(CET-6)刘立军供稿The U.K.’s landmark generational cigarette ban, which received royal assent in April 2026 and is due to take effect in January 2027, might yield its most dramatic results decades from now, if it sticks around that long. 英国具有里程碑意义的代际禁烟法案于2026年4月获得王室批准,并将于2027年1月正式生效。英国新近出台的禁烟令若能持续落地执行,或许要在数十年后才能显现出最显著的效果。Since tobacco first arrived on the shores of England in the late 16th century, some Brits have wanted to eradicate it. Back in 1604, King James I was so alarmed about his country’s new smoking habit that he imposed a 4,000 percent tariff on the crop. That year, he wrote one of the world’s first anti-tobacco essays, declaring smoking “loathsome to the eye, hateful to the nose, harmful to the brain, dangerous to the lungs.” 自16世纪末烟草传入英国起,就有部分英国人希望彻底根除烟草。1604年,詹姆斯一世国王就对国内兴起的吸烟风气深感忧虑,于是对烟草征收税率高达4000%的关税。同年,他撰写了世界上最早的反烟草论著之一,称吸烟“触目生厌、刺鼻难闻、损伤大脑、戕害肺腑”。Despite the best efforts of the king and the generations of anti-tobacco activists who followed him, people in the United Kingdom still smoke. Now advocates are hoping a new law that prohibits anyone born on or after January 1, 2009, from ever buying cigarettes will finally end the habit for good. But the tobacco-free generation, at least in the short term, is unlikely to truly be tobacco-free. 尽管英国国王以及后世一代又一代反烟草人士竭尽全力,很多英国人至今仍在吸烟。如今,支持控烟的人士寄希望于一项新法案:该法案禁止2009年1月1日及以后出生的人购买香烟,期盼以此彻底终结这一恶习。然而,至少在短期内,这个所谓的“无烟一代”,恐怕难以真正做到完全不接触烟草。Generational tobacco bans were first proposed in 2010 by a group of researchers in Singapore. Around that time, less extreme anti-tobacco measures — such as media campaigns, clean-air laws, and taxes — had reduced smoking in many countries to such a point that public-health advocates started to seriously consider policies that could shrink rates to effectively zero. A tobacco “endgame,” as it has become known, was in sight. “I want to stamp out smoking for good,” Rishi Sunak, the former U.K. prime minister, said in a statement when he first proposed the plan in 2023. 2010年,新加坡的一个研究团队首次提出了“代际禁烟令”这一构想。当时,媒体宣传、清洁空气法案、烟草税收等相对温和的控烟措施,已将许多国家的吸烟率降至较低水平。公共卫生领域的倡导者由此开始认真研究,思考如何通过采取更为彻底的政策,将吸烟率降至接近于零。业界所说的烟草管控“终局”似乎近在眼前。2023年,英国前首相里希·苏纳克在首次提出该方案时发表声明称:“我希望彻底根除吸烟现象。”Currently, U.K. residents need to be 18 or older to purchase cigarettes. The new generational ban will introduce a more unusual paradigm: Beginning on January 1, 2027, an 18-year-old born on New Year’s Day 2009 will not be able to buy products such as cigarettes and chewing tobacco for the rest of their life. But a friend born one day earlier would face no such barrier. That means, as some critics of the ban have pointed out, that 18-year-olds will almost certainly bum cigarettes from older friends — the same way younger teens have acquired them since time immemorial. Data suggest that most adolescent British smokers get cigarettes for free from older people they know. In one study, in which researchers interviewed British smokers as young as 12 about how they obtained cigarettes, kids who waited outside of tobacco shops in hopes that an older customer would buy for them reported mostly targeting people under 25. 目前,英国居民需年满18周岁才可购买香烟。而这项全新的代际禁令将带来一种更为特殊的管控模式:自2027年1月1日起,2009年元旦出生的青年,即便年满18岁,终身都不得购买香烟、嚼烟这类烟草制品。但如果有人仅早一天出生,则不受这条禁令限制。正如该禁令的部分批评人士所指出的,这意味着这批年满18岁的年轻人几乎肯定会向年龄更大的朋友讨要香烟——古往今来,低龄青少年就是这样获取香烟的。数据表明,英国绝大多数未成年吸烟者,都是从相熟的长者手上免费拿到香烟。在一项针对低至12岁的英国吸烟青少年的研究中,研究人员询问了他们获取香烟的途径。部分青少年会守候在烟草店门外,指望年长顾客帮忙代买,据他们反馈,自己主要找25岁以下的成年人帮忙。Lawmakers included language in the bill designed to dissuade older people from buying cigarettes for their underage acquaintances. But, more importantly, that issue will likely work itself out over time. By 2034, no one under 25 will be able to purchase cigarettes. And with each passing year, kids’ sources of illegal cigarettes should progressively dwindle. Because having peers who smoke increases young people’s chances of starting themselves, fewer kids being able to get their hands on cigarettes should have a ripple effect, dissuading more and more of their peers from experimenting. By 2079, no one under 70 will be legally able to smoke. It will become the habit not of teenage rebellion but of retirement homes. 立法者在法案中增设相关条款,意在劝阻年长者不要为未成年熟人代买香烟。但更重要的是,这一问题大概率会随着时间的推移而自然化解。到2034年,25岁以下的人都将无法购买香烟。年复一年,青少年获取非法香烟的渠道也会日益萎缩。身边有吸烟的同龄人,会增加年轻人开始吸烟的概率;能够接触到香烟的青少年越来越少,将会产生连锁反应,促使更多同龄人打消尝试吸烟的念头。到2079年,70岁以下人群将不再具备合法吸烟的资格。吸烟将不再是青春期叛逆的标志,反倒会成为养老院里的一种习惯。This all depends, of course, on retailers actually following the law — a big if, according to some tobacco-control experts I spoke with. In a 2023 NHS survey, one-third of youth smokers reported regularly (and illegally) buying cigarettes from shops. “I don’t think we should play down the need for enforcement,” Nathan Davies, a doctoral fellow at the University of Nottingham who studies tobacco control, told me. And even if shopkeepers play by the rules, other people might not. Consider the small Himalayan nation of Bhutan, where all tobacco sales were banned in 2004, but cigarettes remained easy to access because a black market quickly cropped up. Those dealers didn’t serve just existing smokers but also young children. In 2019, nearly a quarter of 13-to-15-year-olds in the country used tobacco. 当然,这一切的前提是零售商能否真正遵守法律——我采访的一些控烟专家称,这还是个巨大的未知数。英国国家医疗服务体系(NHS)2023年的一项调查显示,三分之一的青少年吸烟者称自己经常(且非法地)在商店购买香烟。诺丁汉大学从事控烟研究的博士研究员内森·戴维斯表示:“我们绝不能弱化执法的重要性。”即便商家恪守规定,其他人却未必照做。以喜马拉雅山区小国不丹为例:该国2004年全面禁止烟草销售,但黑市迅速滋生,香烟依然极易获取。这些黑市商贩不仅向吸烟人士供货,甚至把魔爪伸向了青少年。2019年,该国近四分之一的13-15岁青少年使用了烟草制品。Nigel Farage, the leader of the right-wing Reform U.K. Party, has repeatedly insisted that such a black market could appear in the U.K. too. But the country’s experiment was not technically a generational tobacco ban, unlike the policy in the U.K., which was crafted to ensure that most current smokers can continue to buy their products legally, thus shrinking the profitability of any black market. The Bhutan and U.K. policies are “structurally so different in scope, sequencing, enforcement infrastructure, and market context that the comparison generates more confusion than insight,” Kashish Aneja, who leads initiatives in Asia at Georgetown University’s O’Neill Institute for National and Global Health Law, told me via email. 英国右翼改革党领导人奈杰尔·法拉奇一再提出,英国同样可能滋生这样的黑市。但严格来说,不丹的管控尝试不同于英国的代际禁烟令;而英国出台的这项政策,充分保障大多数现有吸烟者仍可合法购买烟草制品,以此压缩黑市的获利空间。乔治城大学奥尼尔国家与全球卫生法研究所亚洲区项目负责人卡希什·阿内贾在邮件中指出,不丹与英国的政策“在管控范围、实施节奏、执法配套体系以及市场环境上存在本质结构性差异,将两者进行比较,更多只会造成认知混淆,而无法带来有效借鉴”。No actual generational tobacco ban has existed for enough years to reveal its long-term effects. The Maldives, a small island nation south of India, implemented such a policy in November. Several Massachusetts towns have also passed similar bans. Brookline, a wealthy suburb of Boston, was the first, enacting its own version in 2021. Available data suggest the ban has had little effect on cigarette smoking thus far, but according to advocates, real change will take much more time. “It is a slow and gentle policy change which will result in changes over the mid and long-term,” Mark Gottlieb, the executive director of the Public Health Advocacy Institute at the Northeastern University School of Law, told me in an email. 迄今为止,还没有任何真正落地的代际禁烟令已经过足够长的时间来验证其长期成效。位于印度以南的岛国马尔代夫于去年11月实施了同类政策。美国马萨诸塞州的几个城镇也通过了类似禁令。而波士顿的富裕郊区布鲁克莱恩则走在了前列,于2021年在当地开始实施禁令。现有数据表明,该禁令迄今为止对吸烟行为的抑制作用微乎其微,但支持该政策的人士表示,实质性改变需要更长的时间。东北大学法学院公共卫生倡导研究所执行主任马克·戈特利布在给我的邮件中写道:“这是一项温和渐进的政策,其成效将在中长期逐渐显现。”New Zealand’s left-wing Labor Party passed a tobacco-free-generation policy in 2022. But the country’s new center-right coalition government, on taking power in 2024, repealed the law before it went into effect. The government’s stated reasons for the repeal were so that cigarette-tax revenue could pay for a slew of new tax cuts, and because it was argued that the policy would have fueled illegal smuggling. Something similar might happen in the U.K. Farage, himself a smoker, has called the ban “puritanical” and vowed to repeal it if his party takes power. 新西兰左翼工党于2022年通过了“无烟一代”政策。但该国新一届中右翼联合政府2024年上台后,在法案生效前就将其废除。政府给出的废除理由有两点:一是需要依靠香烟税收,支撑一揽子减税政策;二是认为该政策会助长非法走私活动。类似的情况也可能在英国上演。本身就是吸烟者的法拉奇,称这项禁令带有“清教徒式的禁欲色彩”,并扬言若其政党上台执政,必将予以废除。He’s probably not the only one who’d like to see that happen. Tobacco companies urged Parliament not to pass the law, arguing that it was discriminatory and would not prevent youth smoking — and would increase crime, to boot. “Every year from 2027 onwards a generational ban will hand more of the UK tobacco market to the serious organized criminal groups who will use the proceeds of illegal tobacco to fund activities including terrorism, weapons trading, the distribution of narcotics and people smuggling,” Japan Tobacco International, which owns a number of the most popular cigarette brands in the U.K., wrote. (In a statement, a JTI spokesperson added to that list, writing, “Illegal tobacco in the UK has been linked to organized crime, including activities such as money laundering, human trafficking, and violence.”) The tobacco industry, along with smokers’-rights groups, also aggressively courted certain U.K. conservatives as the new ban was being debated, hosting them for lunches and at least one party. 希望看到禁令被废除的恐怕不止法拉奇一人。烟草公司曾游说议会否决该法案,称其具有歧视性,不仅无法阻止青少年吸烟,还会加剧犯罪。拥有英国多个畅销香烟品牌的日本烟草国际公司(JTI)写道:“自2027年起,代际禁烟令会逐年把英国更大一部分烟草市场拱手交给大型有组织犯罪集团。这些团伙将利用非法烟草的利润,资助恐怖主义、武器交易、毒品贩运、人口走私等各类犯罪活动。”(JTI发言人在另一份声明中补充道:“英国境内的非法烟草贸易与洗钱、人口贩运和暴力等有组织犯罪活动密切相关。”)在新禁令的辩论期间,烟草行业还联合吸烟者权益组织积极拉拢部分英国保守派议员,为他们举办午餐会,以及至少一场社交派对。Despite the debate, generational smoking bans are broadly popular. A poll commissioned by the anti-smoking group Action on Smoking and Health found that 68 percent of English people support the new ban. In New Zealand, about 60 percent of voters opposed the country’s about-face. Perhaps that’s because smoking remains one of the world’s leading causes of preventable death, or because the overwhelming majority of smokers regret ever starting. The new policy might not make much difference for today’s teens, but decades from now, a new generation really might avoid that lifelong error — as long as the ban actually sticks around. 尽管争议不断,代际禁烟令仍广受民众欢迎。反吸烟组织“吸烟与健康行动”委托开展的民调显示,68%的英格兰民众支持这项新禁令。在新西兰,约60%的选民不认同禁烟政策的彻底转向。究其原因,可能是因为一方面吸烟依然是全球可预防死亡的首要诱因之一,另一方面绝大多数吸烟者对当初染上烟瘾后悔不已。这项新政策或许不会对今天的青少年产生太大影响,但几十年后的那一代人真的有可能避免犯下这个终身错误——前提是这项禁令能够切实长期推行。【词汇】1. time immemorial 太古时代,很久以前2. dissuade v. 劝阻;阻止3. dwindle v. 逐渐减少;缩小4. ripple effect 连锁反应5. doctoral adj. 博士的6. repeal v. 废除;撤销7. a slew of 大量;许多8. narcotic n. 麻醉药;毒品9. trafficking n. 非法交易,非法买卖10. publicize v. 宣传;宣扬11. proponent n. 支持者;倡导者12. about-face n. (思想、行为的)大转变 (本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 我们为何需要8小时睡眠?

我们为何需要8小时睡眠?Why do we need eight hours of sleep?常速 | 四级(偏易) | 809词 | 3min37s刘立军供稿Part I. QUESTIONSListen to the passage and choose the best answer to each question you hear.Q1. What does Dr. Sanjay Gupta say about the commonly recommended eight hours of sleep?A. It is the minimum amount required for all adults.B. It is mainly suitable for teenagers and children.C. It represents an average rather than a fixed standard.D. It has recently been proven to be scientifically inaccurate.Q2. Which stage of sleep occupies the largest proportion of an adult’s sleep cycle?A. Stage one sleep.B. Stage two sleep.C. Stage three sleep.D. REM sleep.Q3. Why does Dr. Gupta consider sleep especially important for students?A. It improves physical strength and athletic performance.B. It reduces the amount of study time students need.C. It helps transfer daily experiences into long-term memory.D. It allows the brain to remain active throughout the night.Q4. What can be inferred about irregular sleeping habits?A. They mainly affect people who travel frequently.B. They may interfere with the body’s natural rhythm.C. They can quickly increase the total amount of sleep.D. They are less harmful than excessive screen use.Q5. What is the main purpose of the conversation?A. To compare the sleeping habits of adults and children.B. To warn people about the long-term dangers of technology addiction.C. To discuss the relationship between exercise and brain development.D. To explain the functions of sleep and ways to improve sleep quality.Part II. TRANSCRIPTWhy do we need eight hours of sleep?I got 5 hours of sleep last night. Last night, this is not normal. I got about 6 and 1/2 hours of sleep. Last night, I slept four hours. I got 5 hours 45 minutes of sleep. Last night, I got about 5 hours of sleep. Usually, I try to shoot for 7 to 8. It seems like most people are not getting 8 hours of sleep. We got a wide range of answers today. I am on a mission to find out if that’s really what we need to do. And I’m bringing in a special guest, Dr. Sanjay Gupta.How are you? You missed this discussion. Oh man, you are the man I need to speak to. So why eight hours? Is this the optimal amount?optimal adj. 最佳的,最适宜的(Q1) So you know, like most things in life, it’s an average. The average is a range between 6 and 10 hours for most adults. The thing is, for kids, it’s actually even more than that—9 to 12 hours for elementary school kids and teenagers, back to sort of 8 to 10 hours.(Q5-1) Take us inside of our brains. What happens while we sleep?Sleep is actually a really fascinating time for the brain. It’s kind of interesting because people think it’s just at rest. It’s actually really active. And there are several stages of sleep. (Q2) Stage one, you spend about 5% of your time in stage one. That’s the lightest sleep, just sort of drifting off to sleep. Then stage two, a little bit deeper. About 45% of your sleep is stage two. Then there’s stage three, which is the most restful, about 25%. And then there’s this really interesting stage. It’s called REM—rapid eye movements. Literally, your eyes are moving behind your eyelids, and that’s when you’re dreamy. Yeah. And you cycle over and over again through these stages of sleep. About 90 minutes or so for all the stages.The other thing your brain is doing is clearing out waste from all the work that it’s done during the day. (Q3) And I think most importantly for students, that’s the time you take memories and experiences from your day and you put them in the long-term memory stores so you can remember these months, years down the road.So how do I know if I’ve gotten enough sleep for me, for my body?So, most people generally know because you are probably a little bit grumpier than you normally are. You’re always cheery though, aren’t you? I’ve never seen you grumpy. You know, you feel tired. I think one of the biggest tests—someone told me this years ago—is if you put yourself in a darkened room in a comfortable chair and right away you fall asleep within a couple of minutes; that’s a pretty sure sign that you’re sleep-deprived.grumpy adj. 脾气坏的,易怒的(Q5-2) So, give your boy some tips and all of us on getting great sleep.So, you’re an athlete, probably working out too close to when you go to bed; it’s probably going to keep you up. You’re sort of stimulating the body. Caffeine stimulates the body. So, in the morning, good idea. But later on in the afternoon, that’s probably going to keep you up. Screens, the blue light alone is something that’s going to keep you up. It just kind of wakes your brain up. Kind of wakes your brain up. Yeah. It’s like, hey, time to wake up. Time to actually do something.caffeine n. 咖啡因I think the biggest thing is the idea of sleeping around the same time and waking up at the same time every day. It’s like you’re confusing your brain. (Q4) If you go to bed 2 hours early or 2 hours later, your brain’s like, “Wait a second. Is it time to sleep or is it not time to sleep? I’m not sure.” If you get into a consistent pattern of whatever time, so let’s say 11 to 7, uh, every day, you’re likely to get good sleep. Your brain’s not confused, and you can stick with that pattern.Is that connected to that circadian rhythm we always have?circadian adj. 生理节律的And your circadian rhythm can get sort of messed up very quickly. You see that when you travel to LA or, you know, any kind of jet lag? You can essentially put yourself into jet lag right at home by confusing your brain like that all the time if you do nothing else. Well, get rid of the screens for sure, but after that, go to bed at the same time, wake up at the same time.You know my tip for great sleep? Hang out with people who just put you at ease. And for me, you’re one of those people. You’re the best sleep. You’re the best.I’m not sure. It’s good that I put you to sleep.Part III. KEYQ1. C.【解析】细节题。题目出处为:“So you know, like most things in life, it’s an average. The average is a range between 6 and 10 hours for most adults.” 意为:“就像生活中的很多事情一样,八小时只是一个平均值。对于大多数成年人来说,平均睡眠时间范围是6到10小时。”该句表明“八小时睡眠”并非绝对标准,而是一个平均参考值,因此正确答案为C。Q2. B.【解析】细节题。题目出处为:“Then stage two, a little bit deeper. About 45% of your sleep is stage two.” 意为:“第二阶段睡眠更深一些,大约占全部睡眠时间的45%。”结合前文“Stage one, you spend about 5% of your time in stage one”以及后文“Then there’s stage three, which is the most restful, about 25%”可知,第二阶段占比最高,因此正确答案为B。Q3. C.【解析】细节题。题目出处为:“And I think most importantly for students, that’s the time you take memories and experiences from your day, and you put them in the long-term memory stores so you can remember these months, years down the road.” 意为:“我认为,对学生来说最重要的是,睡眠期间你的大脑会把白天的记忆和经历储存到长期记忆中,以便未来数月甚至数年后仍能记住。”该句直接说明了睡眠对学生的重要意义,因此正确答案为C。Q4. B.【解析】推理题。题目出处为:“If you go to bed 2 hours early or 2 hours later and your brain’s like, ‘Wait a second. Is it time to sleep or is it not time to sleep? I’m not sure.’” 意为:“如果你提前两小时或推迟两小时睡觉,你的大脑就会想:‘等等,现在是该睡觉的时候,还是不该睡?我也不确定’。”由此可以推断,不规律的睡眠习惯会扰乱人体自然生物节律,因此正确答案为B。Q5. D.【解析】主旨题。题目出处为:“Take us inside of our brains. What happens while we sleep?”以及“… give your boy some tips and all of us on getting great sleep.” 主持人请Gupta博士解释睡眠期间大脑的活动并提供改善睡眠的建议,随后他们对睡眠阶段、大脑功能、记忆形成以及健康睡眠习惯进行了详细讨论,因此正确答案为D。(本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 香烟如何影响身体?

香烟如何影响身体?How do cigarettes affect the body?常速 | 七级(偏易)| 699词 | 4min49s刘立军供稿Part I. QUESTIONSListen to the interview and choose the best answer to each question you hear.Q1. What substance in cigarettes is responsible for making smoking highly addictive? A. Tar. B. Carbon monoxide. C. Nicotine. D. Arsenic. Q2. What is one of the immediate physical benefits of quitting smoking? A. Improved eyesight and bone strength. B. Stabilization of carbon monoxide levels. C. Restoration of DNA repair processes. D. Reduced risk of erectile dysfunction. Q3. What happens to the cilia in the lungs after quitting smoking for 9 months? A. They are permanently damaged. B. They start producing harmful chemicals. C. They become less effective in cleaning airways. D. They are restored and improve resistance to infection. Q4. What can be inferred about the long-term effects of quitting smoking? A. Quitting smoking has no impact on coronary heart disease. B. The body gradually regains its ability to repair DNA. C. Lung cancer risk remains unchanged after quitting smoking. D. The benefits of quitting smoking are limited to younger smokers. Q5. What is the main purpose of the text? A. To highlight the dangers of smoking and benefits of quitting. B. To explain the chemical composition of cigarettes. C. To discuss the psychological challenges of quitting smoking. D. To analyze the global impact of smoking-related diseases. Part II. TRANSCRIPTHow do cigarettes affect the body?Cigarettes aren’t good for us. That’s hardly news — we’ve known about the dangers of smoking for decades. But how exactly do cigarettes harm us? Let’s look at what happens as their ingredients make their way through our bodies, and how we benefit physically when we finally give up smoking.With each inhalation, smoke brings its more than 5,000 chemical substances into contact with the body’s tissues. From the start, tar, a black, resinous material, begins to coat the teeth and gums, damaging tooth enamel, and eventually causing decay. Over time, smoke also damages nerve-endings in the nose, causing loss of smell.Inside the airways and lungs, smoke increases the likelihood of infections, as well as chronic diseases like bronchitis and emphysema. It does this by damaging the cilia, tiny hairlike structures whose job it is to keep the airways clean. It then fills the alveoli, tiny air sacs that enable the exchange of oxygen and carbon dioxide between the lungs and blood. A toxic gas called carbon monoxide crosses that membrane into the blood, binding to hemoglobin and displacing the oxygen it would usually have transported around the body. That’s one of the reasons smoking can lead to oxygen deprivation and shortness of breath.bronchitis n. 支气管炎 emphysema n. 肺气肿 alveoli n. 肺泡 sac n. 囊,气囊 membrane n. 膜 hemoglobin n. 血红蛋白 (Q1) Within about 10 seconds, the bloodstream carries a stimulant called nicotine to the brain, triggering the release of dopamine and other neurotransmitters including endorphins that create the pleasurable sensations which make smoking highly addictive. Nicotine and other chemicals from the cigarette simultaneously cause constriction of blood vessels and damage their delicate endothelial lining, restricting blood flow. These vascular effects lead to thickening of blood vessel walls and enhance blood platelet stickiness, increasing the likelihood that clots will form and trigger heart attacks and strokes.dopamine n. 多巴胺 neurotransmitter n. 神经递质 endorphin n. 内啡肽 endothelial adj. 内皮的 lining n. 内衬,内膜 Many of the chemicals inside cigarettes can trigger dangerous mutations in the body’s DNA that make cancers form. Additionally, ingredients like arsenic and nickel may disrupt the process of DNA repair, thus compromising the body’s ability to fight many cancers. In fact, about one of every three cancer deaths in the United States is caused by smoking.And it’s not just lung cancer. Smoking can cause cancer in multiple tissues and organs, as well as damaged eyesight and weakened bones. It makes it harder for women to get pregnant. And in men, it can cause erectile dysfunction.dysfunction n. 功能障碍 But for those who quit smoking, there’s a huge positive upside with almost immediate and long-lasting physical benefits.Just 20 minutes after a smoker’s final cigarette, their heart rate and blood pressure begin to return to normal. (Q2) After 12 hours, carbon monoxide levels stabilize, increasing the blood’s oxygen-carrying capacity. A day after ceasing, heart attack risk begins to decrease as blood pressure and heart rates normalize. After two days, the nerve endings responsible for smell and taste start to recover.Lungs become healthier after about one month, with less coughing and shortness of breath. (Q3) The delicate hair-like cilia in the airways and lungs start recovering within weeks, and are restored after 9 months, improving resistance to infection.cilia n. 纤毛 By the one-year anniversary of quitting, heart disease risk plummets to half as blood vessel function improves. Five years in, the chance of a clot forming dramatically declines, and the risk of stroke continues to reduce. (Q4) After ten years, the chances of developing fatal lung cancer go down by 50%, probably because the body’s ability to repair DNA is once again restored. Fifteen years in, the likelihood of developing coronary heart disease is essentially the same as that of a non-smoker.plummet v. 暴跌,骤降 coronary adj. 冠状的,冠状动脉的 There’s no point pretending this is all easy to achieve. Quitting can lead to anxiety and depression, resulting from nicotine withdrawal. But fortunately, such effects are usually temporary. And quitting is getting easier, thanks to a growing arsenal of tools. Nicotine replacement therapy through gum, skin patches, lozenges, and sprays may help wean smokers off cigarettes. They work by stimulating nicotine receptors in the brain and thus preventing withdrawal symptoms, without the addition of other harmful chemicals. Counselling and support groups, cognitive behavioral therapy, and moderate intensity exercise also help smokers stay cigarette-free.lozenge n. 含片,润喉片 wean v. 使断奶,使戒掉 That’s good news, since quitting puts you and your body on the path back to health.Part III. KEYQ1. C.【解析】细节题。根据“Within about 10 seconds, the bloodstream carries a stimulant called nicotine to the brain, triggering the release of dopamine and other neurotransmitters.”,可知血液将一种叫尼古丁的刺激物输送到大脑,触发多巴胺和其他神经递质的释放,使人吸烟成瘾。正确答案为C。 Q2. B.【解析】细节题。根据“After 12 hours, carbon monoxide levels stabilize, increasing the blood’s oxygen-carrying capacity.”,可知在戒烟后12小时,血液中的一氧化碳水平稳定下来,增加了血液携带氧气的能力,是戒烟后即时身体益处。正确答案为B。 Q3. D.【解析】细节题。根据“The delicate hair-like cilia in the airways and lungs start recovering within weeks, and are restored after 9 months, improving resistance to infection.”,可知呼吸道和肺部的纤毛在几周内开始恢复,并在9个月后恢复,提高了对感染的抵抗力。正确答案为D。 Q4. B.【解析】推理题。根据“After ten years, the chances of developing fatal lung cancer go down by 50%, probably because the body’s ability to repair DNA is once again restored.”,可知在戒烟十年后,患致命肺癌的几率下降了50%,可能是因为身体修复DNA的能力再次恢复。从中可以推断,戒烟后身体会逐渐恢复修复DNA的能力。正确答案为B。 Q5. A.【解析】主旨题。文章主要讨论了吸烟对身体的危害以及戒烟带来的健康益处处。正确答案为A。 (本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 通过明确的小目标建立长期习惯的方法

Small steps to build long-lasting habits 通过明确的小目标建立长期习惯的方法常速 | 五级(偏易)| 376词 | 2min20s刘立军供稿Part I. QUESTIONSListen to the news and choose the best answer to each question you hear.Q1. According to James Clear, what is the main reason people fail to maintain good habits? A. They lack willpower. B. They do not set SMART goals. C. Their system is flawed. D. Their goals are too ambitious. Q2. What is an example of a SMART goal mentioned in the text? A. Exercising more during the week. B. Walking for 20 minutes every weekday evening. C. Reading a book every month. D. Going to the gym three times a week. Q3. What is the purpose of ‘habit stacking’ as explained in the text? A. To identify ineffective habits. B. To eliminate bad habits completely. C. To prioritize daily routines. D. To attach new habits to existing ones. Q4. What can be inferred about setbacks in building habits? A. They indicate that the system is ineffective. B. They are unavoidable and part of the process. C. They should be avoided at all costs. D. They make it impossible to maintain habits. Q5. What is the main purpose of the text? A. To discuss strategies for building and maintaining long-lasting habits. B. To explain why SMART goals are essential for habit formation. C. To highlight the importance of willpower in achieving goals. D. To emphasize the role of spontaneity in daily routines. Part II. TRANSCRIPTSmall steps to build long-lasting habitsIt’s day one of a healthier, smarter, better you. You’re full of zest and good intentions. You woke up at 5am to run before work, you read a book in your lunchbreak, and you listened to an English podcast on your commute. Now, fast forward three months. Life is getting in the way, and you’ve slipped into old habits… snoozing your alarm and eating chocolate for breakfast. Sound familiar?zest n. 热情,兴趣 podcast n. 播客,音频节目 commute n. 通勤,往返于工作地点和住所之间 Don’t be hard on yourself. It’s unrealistic to rely on willpower alone. (Q1) As James Clear, author of the bestselling book Atomic Habits, writes, “The problem isn’t you. The problem is your system.” Our habits come from goals, so start by getting really clear. Goals, according to George T Doran, should be SMART: specific, measurable, achievable, relevant and time-bound. It’s not enough to say, “I’ll exercise more” – that’s too vague! (Q2) A SMART goal would be “I’m going to walk for 20 minutes in the evenings on weekdays.” Now you have a clear action that you can stick to.vague adj. 模糊的,不明确的 Once you’re clear on your goals, you need to make the associated habits as automatic as possible. (Q3) Try ‘habit stacking’, a technique popularised in the book Atomic Habits, which involves attaching a new habit onto something you already do regularly. For example, if you already make coffee every morning, use that moment to read your book for 20 minutes. That way, your new reading habit is now intertwined with something you’re going to do anyway. Another key strategy is to reward yourself, to transform the habit from a chore into something pleasurable. If it’s hard to get yourself to the gym, promise yourself that after each visit, you’ll allow yourself a treat – a takeaway meal or an episode of your favourite TV show.stack v. 堆叠,堆积 (Q4) Even with our best intentions and a great system, stress and interruptions to your routine like social events can still make keeping habits feel like an uphill battle. If or when you have setbacks, accept it as part of the process. Life is full of spontaneity and uncertainty – one could argue that’s what keeps it interesting! Use setbacks as a pause for reflection and review. What about your system is working? What’s no longer serving you? Then, get back on track.spontaneity n. 自发性,自然性 Part III. KEYQ1. C.【解析】细节题。根据“As James Clear, author of the bestselling book Atomic Habits, writes, “The problem isn’t you. The problem is your system.” ”,可知詹姆斯·克利尔认为,人们无法坚持好习惯,问题不在于人本身,而在于自身的体系存在缺陷。因此正确答案为C。Q2. B.【解析】细节题。根据“A SMART goal would be “I’m going to walk for 20 minutes in the evenings on weekdays.””,可知一个SMART目标可以是“我打算在工作日的晚上步行20分钟。”因此正确答案为B。Q3. D.【解析】细节题。根据“Try ‘habit stacking’, a technique popularised in the book Atomic Habits, which involves attaching a new habit onto something you already do regularly.”,可知habit stacking是指“习惯叠加”,即将一个新习惯附加到你已经经常做的事情上。因此正确答案为D。Q4. B.【解析】推理题。根据“Even with our best intentions and a great system, stress and interruptions to your routine like social events can still make keeping habits feel like an uphill battle. If or when you have setbacks, accept it as part of the process.”,可知即使我们有最好的意图和很好的系统,压力和社交活动等对日常生活的干扰仍然会让保持习惯感觉像是一场艰难的战斗。在培养习惯的过程中遭遇挫折是过程的一部分。因此正确答案为B。Q5. A.【解析】主旨题。整篇文章的核心内容是讨论如何通过明确目标、习惯叠加和奖励机制等策略来建立和维持长期的习惯。“Small steps to build long-lasting habits” 的标题以及文章内容都围绕这一主题展开,因此正确答案为A。(本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 我们为何需要8小时睡眠?

我们为何需要8小时睡眠?Why do we need eight hours of sleep?常速 | 四级(偏易) | 809词 | 3min37s刘立军供稿Part I. QUESTIONSListen to the passage and choose the best answer to each question you hear.Q1. What does Dr. Sanjay Gupta say about the commonly recommended eight hours of sleep?A. It is the minimum amount required for all adults.B. It is mainly suitable for teenagers and children.C. It represents an average rather than a fixed standard.D. It has recently been proven to be scientifically inaccurate.Q2. Which stage of sleep occupies the largest proportion of an adult’s sleep cycle?A. Stage one sleep.B. Stage two sleep.C. Stage three sleep.D. REM sleep.Q3. Why does Dr. Gupta consider sleep especially important for students?A. It improves physical strength and athletic performance.B. It reduces the amount of study time students need.C. It helps transfer daily experiences into long-term memory.D. It allows the brain to remain active throughout the night.Q4. What can be inferred about irregular sleeping habits?A. They mainly affect people who travel frequently.B. They may interfere with the body’s natural rhythm.C. They can quickly increase the total amount of sleep.D. They are less harmful than excessive screen use.Q5. What is the main purpose of the conversation?A. To compare the sleeping habits of adults and children.B. To warn people about the long-term dangers of technology addiction.C. To discuss the relationship between exercise and brain development.D. To explain the functions of sleep and ways to improve sleep quality.Part II. TRANSCRIPTWhy do we need eight hours of sleep?I got 5 hours of sleep last night. Last night, this is not normal. I got about 6 and 1/2 hours of sleep. Last night, I slept four hours. I got 5 hours 45 minutes of sleep. Last night, I got about 5 hours of sleep. Usually, I try to shoot for 7 to 8. It seems like most people are not getting 8 hours of sleep. We got a wide range of answers today. I am on a mission to find out if that’s really what we need to do. And I’m bringing in a special guest, Dr. Sanjay Gupta.How are you? You missed this discussion. Oh man, you are the man I need to speak to. So why eight hours? Is this the optimal amount?optimal adj. 最佳的,最适宜的(Q1) So you know, like most things in life, it’s an average. The average is a range between 6 and 10 hours for most adults. The thing is, for kids, it’s actually even more than that—9 to 12 hours for elementary school kids and teenagers, back to sort of 8 to 10 hours.(Q5-1) Take us inside of our brains. What happens while we sleep?Sleep is actually a really fascinating time for the brain. It’s kind of interesting because people think it’s just at rest. It’s actually really active. And there are several stages of sleep. (Q2) Stage one, you spend about 5% of your time in stage one. That’s the lightest sleep, just sort of drifting off to sleep. Then stage two, a little bit deeper. About 45% of your sleep is stage two. Then there’s stage three, which is the most restful, about 25%. And then there’s this really interesting stage. It’s called REM—rapid eye movements. Literally, your eyes are moving behind your eyelids, and that’s when you’re dreamy. Yeah. And you cycle over and over again through these stages of sleep. About 90 minutes or so for all the stages.The other thing your brain is doing is clearing out waste from all the work that it’s done during the day. (Q3) And I think most importantly for students, that’s the time you take memories and experiences from your day and you put them in the long-term memory stores so you can remember these months, years down the road.So how do I know if I’ve gotten enough sleep for me, for my body?So, most people generally know because you are probably a little bit grumpier than you normally are. You’re always cheery though, aren’t you? I’ve never seen you grumpy. You know, you feel tired. I think one of the biggest tests—someone told me this years ago—is if you put yourself in a darkened room in a comfortable chair and right away you fall asleep within a couple of minutes; that’s a pretty sure sign that you’re sleep-deprived.grumpy adj. 脾气坏的,易怒的(Q5-2) So, give your boy some tips and all of us on getting great sleep.So, you’re an athlete, probably working out too close to when you go to bed; it’s probably going to keep you up. You’re sort of stimulating the body. Caffeine stimulates the body. So, in the morning, good idea. But later on in the afternoon, that’s probably going to keep you up. Screens, the blue light alone is something that’s going to keep you up. It just kind of wakes your brain up. Kind of wakes your brain up. Yeah. It’s like, hey, time to wake up. Time to actually do something.caffeine n. 咖啡因I think the biggest thing is the idea of sleeping around the same time and waking up at the same time every day. It’s like you’re confusing your brain. (Q4) If you go to bed 2 hours early or 2 hours later, your brain’s like, “Wait a second. Is it time to sleep or is it not time to sleep? I’m not sure.” If you get into a consistent pattern of whatever time, so let’s say 11 to 7, uh, every day, you’re likely to get good sleep. Your brain’s not confused, and you can stick with that pattern.Is that connected to that circadian rhythm we always have?circadian adj. 生理节律的And your circadian rhythm can get sort of messed up very quickly. You see that when you travel to LA or, you know, any kind of jet lag? You can essentially put yourself into jet lag right at home by confusing your brain like that all the time if you do nothing else. Well, get rid of the screens for sure, but after that, go to bed at the same time, wake up at the same time.You know my tip for great sleep? Hang out with people who just put you at ease. And for me, you’re one of those people. You’re the best sleep. You’re the best.I’m not sure. It’s good that I put you to sleep.Part III. KEYQ1. C.【解析】细节题。题目出处为:“So you know, like most things in life, it’s an average. The average is a range between 6 and 10 hours for most adults.” 意为:“就像生活中的很多事情一样,八小时只是一个平均值。对于大多数成年人来说,平均睡眠时间范围是6到10小时。”该句表明“八小时睡眠”并非绝对标准,而是一个平均参考值,因此正确答案为C。Q2. B.【解析】细节题。题目出处为:“Then stage two, a little bit deeper. About 45% of your sleep is stage two.” 意为:“第二阶段睡眠更深一些,大约占全部睡眠时间的45%。”结合前文“Stage one, you spend about 5% of your time in stage one”以及后文“Then there’s stage three, which is the most restful, about 25%”可知,第二阶段占比最高,因此正确答案为B。Q3. C.【解析】细节题。题目出处为:“And I think most importantly for students, that’s the time you take memories and experiences from your day, and you put them in the long-term memory stores so you can remember these months, years down the road.” 意为:“我认为,对学生来说最重要的是,睡眠期间你的大脑会把白天的记忆和经历储存到长期记忆中,以便未来数月甚至数年后仍能记住。”该句直接说明了睡眠对学生的重要意义,因此正确答案为C。Q4. B.【解析】推理题。题目出处为:“If you go to bed 2 hours early or 2 hours later and your brain’s like, ‘Wait a second. Is it time to sleep or is it not time to sleep? I’m not sure.’” 意为:“如果你提前两小时或推迟两小时睡觉,你的大脑就会想:‘等等,现在是该睡觉的时候,还是不该睡?我也不确定’。”由此可以推断,不规律的睡眠习惯会扰乱人体自然生物节律,因此正确答案为B。Q5. D.【解析】主旨题。题目出处为:“Take us inside of our brains. What happens while we sleep?”以及“… give your boy some tips and all of us on getting great sleep.” 主持人请Gupta博士解释睡眠期间大脑的活动并提供改善睡眠的建议,随后他们对睡眠阶段、大脑功能、记忆形成以及健康睡眠习惯进行了详细讨论,因此正确答案为D。(本文图片来源于摄图网,版权归摄图网所有)

第12届教学大赛英语专业组二等奖赵雪宇授课

授课点评:赵雪宇老师展示了“3A设计”,整合了准备、习得与应用这三个不同的教学阶段。对教学阶段和教学过程的表述比较清晰,教学过程在“3A设计”的基础上展开,强调学生参与的多元形式,例如学生提问、学生评价、学生总结等。设计框架层次清晰。教学展示与教学设计紧密地融合在了一起。展示伊始,教师提醒学生回忆“3A设计”,并且多次使用“I want you to be/do…”的句式,运用丰富的肢体语言、重读、停顿等方式明确提出了自己的期待,帮助学生更加直观地获得课堂学习的方向感。此外,教师对学生的分享做出了真诚的回应,而不只是用简短的评价话语敷衍了事,这对学习共同体的建构大有助益。这同时体现出教师对英语有着较好的掌握程度,能够从容、准确地重述学生观点,帮助学生修正语言表述上的错误,并提供更加规范、高效的表达方式。整体而言,赵老师在教学展示过程中教态得体,状态自然、松弛,说课清晰,且能够脱离讲稿等材料的辅助完成授课。课堂教学紧密围绕教学目标,环环相扣,逐步深入。她有效运用了多媒体课件,运用多样的视图突出核心教学内容,起到了辅助作用。可以看出赵老师的整体状态(尤其体现为笑容、身势,对重读、停顿的运用,以及真诚的回应)有效吸引了学生的注意力,激发了学生的学习兴趣,为学生创设了安全的发言空间,让学生有分享欲,愿意主动参与课堂互动。最后,建议赵老师未来可以在分析课文内容的同时,进一步在词汇层面对近义词加以辨析。点评专家:杨延宁

第12届教学大赛英语专业组特等奖胡笑然授课

授课点评:胡笑然老师以充分的课前准备、认真的育人态度、专业的学科素养、科学的教学方法,在限定的20分钟时间内出色地完成了所指定的授课任务,为全国高校英语专业师生呈现了一堂值得学习和反思的短课。在整个授课过程中,胡老师精神饱满,着装端庄,形象甜美,教态自然,认真专注,热情友好,充满活力,展现了良好的个人魅力,体现了青年教师的时代风貌。胡老师具有扎实的英语基本功、娴熟的课堂掌控能力和应变能力、流畅的语言表达能力;综述简洁明了,呈现单元设计、教学目标、相关活动和拟用时间;授课有明确的目标,以学生为中心,围绕单元主题和语篇意义,突出重点,聚焦难点,讲解和引导规范适切。胡老师有自己的教学理念,能运用一定的教学理论,遵循“题材—功能—活动”的教学原则,重视语言感知和信息获取,围绕单元主题展开教学,各教学步骤衔接自然。能注重培养学生的观察力、想象力和分析能力,积极帮助学生通过语篇学习,了解重要概念以及语篇作者的观念和意图,努力激发学生对语篇主题的学习兴趣,师生之间有积极的互动和良好的交流。能充分利用和发挥电子课件的辅助教学功能, PPT和嵌入视频有良好的功能性和实用性,形式与内容相吻合,体现了课件形式与课文内容、教学手段与教学目的有机关联和主从关系,发挥了现代化教学资源及手段的教学辅助作用,增强了学生对单元主题和语言表述的理解。从整体上看,胡老师的授课比较成功。授课目的明确,授课重点突出,内容讲解清晰,活动安排合理,起承转合自然,师生互动自然,课件使用得当,教学效果较好。当然,她所展示的这堂英语短课仍存在以下待改进之处:授课停留在主题词语的概念解读层面,对主题意义的挖掘不够深入;教师个人主导成分太强,讲解和提问过多,学生活动不足,活动形式比较单一;时间把握不够合理,没有时间结尾,匆忙收课,无法安排课后作业和课外活动;授课时间用于教学,缺乏对教学成效的必要评价活动,难以确定单元教学目标的达成。建议胡老师在今后的教学研究和实践中,更加重视单元设计的完整性和课堂教学的有效性,关注输入与输出、课内与课外、语篇意义与语言形式的协调,注重教学手段、过程、效果的统一,促进学生在语言知识、语用技能、心智、情感、态度等方面的综合发展和提高。点评专家:梅德明

教育培训更多

AI智能体对外语科研的重构:选题新思路与研究新路径

一、研修目标1. 选题精准化。借助AI智能体的文献洞察与趋势分析能力,帮助参训者突破信息茧房,精准定位具有学术价值与现实意义的前沿选题,避免低水平重复研究。2.设计系统化。AI智能体辅助构建完整的研究框架,实现从理论选择、方法设计到数据采集方案的全链条逻辑校验,提升研究设计的科学性与严谨性。3.申报高效化。通过智能体的多轮对话与文本优化能力,参训者可在科研论文或项目申报书撰写过程中获得持续的逻辑论证支持、语言表达润色及格式规范检查,显著提高文本质量与申报效率。4.能力可持续化。本项目不仅传授具体工具操作,更注重培养参训者与AI智能体协同工作的思维模式与方法论,以期在研修结束后仍能持续运用智能体技术推动自身学术发展,实现科研能力跃升。二、研修特色1.升级认知,建立科学的技术应用观参训者掌握AI智能体的核心能力特征(自主规划、多步推理、工具调用、协作执行),并能批判性地评估AI智能体在外语科研各环节中的适用边界与伦理风险,建立"人机协同、以人为主"的科研智能体应用观。2.掌握技能,形成智能体科研工作流参训者独立完成AI智能体的配置与定制,熟练运用智能体进行文献综述生成、研究问题提炼、理论框架构建、研究方法设计、项目申报书逻辑论证等核心科研任务,掌握提示词工程、工作流编排、插件调用等关键技术技能,形成个人化的AI智能体科研工作流。3. 产出成果,实施个性化诊断与深度辅导研修前通过问卷与材料预审进行学情诊断,研修中强化晚间一对一深度辅导,帮助参训者在研修期间至少完成一项可交付的科研成果雏形,包括但不限于:一份经过AI智能体辅助优化的科研项目申报书初稿、一个完整的研究设计方案、或一套可复用的AI智能体科研工作流配置文件。4. 共建社群,构建专业发展共同体构建持续活跃的AI智能体应用实践社群,参训者在研修后仍能通过社群进行经验分享、问题互助、资源互通,促进研修成果的持续转化与社群生态的良性发展。三、课程设置(一)课程模块本项目设置四大核心课程模块,层层递进,系统构建参训者应用技术赋能科研的能力。模块一:AI智能体认知与科研赋能理路帮助参训者建立对AI智能体技术的系统认知,理解其在外语科研中的应用逻辑与伦理边界。核心内容包括:AI智能体的技术原理与能力特征解析;AI智能体与通用大语言模型的本质区别;外语科研全链条中AI智能体的赋能节点与适用场景;AI智能体应用的学术伦理规范与风险防范策略;国内外AI智能体赋能科研的前沿案例评析。模块二:AI智能体赋能科研选题与文献综述帮助参训者掌握运用AI智能体进行高效文献检索、趋势分析与选题论证的方法。核心内容包括:AI智能体驱动的文献检索策略与工具调用技巧;基于智能体的研究热点识别与趋势预测方法;AI智能体辅助研究问题提炼与创新性评估;文献综述的智能生成与批判性审校;选题可行性的多维度智能评估框架。模块三:AI智能体赋能研究设计与方案构建培养参训者运用AI智能体进行系统化研究设计的能力。核心内容包括:AI智能体辅助理论框架选择与适配性分析;研究方法的智能推荐与逻辑校验;数据采集与分析方案的自动化构建;研究设计的多轮对话式优化与迭代;AI智能体生成的研究方案的学术规范性审查。模块四:AI智能体赋能项目申报书撰写与优化提升参训者运用AI智能体优化文本质量与论证逻辑的能力。核心内容包括:申报书各部分的智能体辅助撰写策略;论证逻辑的智能校验与强化方法;学术语言表达的智能润色与风格统一;申报书格式规范的自动化检查;基于评审标准的申报书模拟评估与优化建议。(二)课程安排本项目为期两天集中研修,辅以晚间个性化辅导,具体日程安排如下:10月31日 上午8:40-11:50模块一:AI智能体认知与科研赋能理路主要内容:l AI智能体技术原理与能力特征解析;l 外语科研全链条中AI智能体的赋能节点与适用场景;l 实操演示与参训者上机体验10月31日下午14:00-17:10模块二:AI智能体赋能科研选题与文献综述主要内容:l AI智能体驱动的文献检索策略与工具调用;l 研究热点识别与趋势分析;l 选题论证实操与案例研讨10月31日晚间18:30-20:00个性化辅导专场(一)主要内容:参训者携带个人申报材料或研究构想,接受专家一对一深度辅导与智能体配置指导11月1日 上午8:40-11:50模块三:AI智能体赋能研究设计与方案构建主要内容:l AI智能体辅助理论框架选择与研究方法设计;l 数据采集方案自动化构建;l 实操演练与方案互评11月1日下午14:00-17:10模块四:AI智能体赋能申报书撰写与优化主要内容:l 申报书各部分智能体辅助撰写;l 论证逻辑智能校验;l 学术语言润色;l 申报书优化实操与成果展示11月1日晚间18:30-20:00个性化辅导专场(二)主要内容:聚焦参训者研修成果的最终打磨与后续科研规划指导四、专家简介(按姓氏拼音排序)王峰:山东大学翻译学院教授、博士生导师、博士后合作导师,同济大学文学博士、布鲁塞尔自由大学应用语言学博士,国际韩礼德语言学研究会秘书长,山东省泰山学者青年专家。主持国家社科1项,省部级课题4项。研究方向:文体学、话语分析、语料库翻译学。在English Studies, Atlantis, Perspectives, Critical Arts, Humanitiesand Social Sciences Communications,Southern AfricanLinguistics and Applied Language Studies, SAGE Open, Psychology in the Schools,Australian Journal of Linguistics, Style, Target, Functions of Language,Chinese Semiotic Studies, Plos One,《外国语》《中国外语》《中国翻译》《外语教学》《外语研究》《外语教学理论与实践》《外语电化教学》《上海翻译》等国内外核心期刊上发表论文50余篇。杨港:博士、博士后,山东大学外国语学院副教授、硕士生导师。研究方向为外语教学理论与实践,学术兴趣包括 AI 赋能的外语教学设计与评价、外语学习者认知与心理、外语教师发展等;主持国家社科基金一般项目、教育部人文社科研究青年基金项目、中国博士后科学基金面上资助项目、山东省本科教学改革研究项目等课题各1项、山东省社科规划研究项目2项;出版专著2部;主编教材5套14部,其中国家级规划教材6部;发表论文20余篇,其中 16篇收录于CSSCI来源期刊(如《外语界》《外语与外语教学》《外语电化教学》)、SSCI一区期刊(如System, Education and Information Technologies, InternationalJournal of Multilingualism);获评山东省高等教育教学成果二等奖、山东省社会科学优秀成果三等奖和山东省普通高等教育一流教材以及“宝钢教育奖励基金”和“邵一兵教育奖励基金”。主要学术兼职包括:国家社科基金项目成果鉴定专家(获全国哲学社会科学工作办公室颁发的“认真负责的鉴定专家”荣誉称号)、多家CSSCI来源期刊以及SSCI期刊审稿专家等。

基于案例驱动的外语教学研究论文写作

课程目标本期研修课程坚持学以致用理念,力求帮助参训者掌握可复用的论文写作方法,能从自身教学课堂挖掘研究选题,合理选择适配的研究范式,独立完成一篇结构完整、论证严谨的外语教学研究论文;同时反哺教学反思,促使教师以科研视角审视课堂,实现教研相长,助力教师专业发展与课题、论文成果产出。1. 夯实学术基础,优化完整写作流程帮助参训者系统掌握外语教学研究论文的学术规范、结构框架与期刊评价标准,厘清教研论文与教学经验总结、心得体会的核心区别,破除写作认知误区,建立从选题构思、文献梳理、研究设计到成果撰写、总结升华的完整学术写作思维。2. 攻克核心写作难点,掌握分章节实操技巧通过正反案例对比、范文深度拆解,精准掌握论文引言、文献综述、研究设计、结果分析、讨论结语各大核心模块的写作逻辑与行文技巧,有效解决选题宽泛、文献堆砌、研究方法误用、论证薄弱、逻辑脱节等高频问题,熟练规避论文写作常见雷区。3. 精通多元研究范式,适配不同教研场景系统掌握外语教学质化、量化、混合研究三种主流研究方法的适用场景、设计规范与撰写要点,能够结合自身课堂教学场景、研究素材与研究需求,精准选择适配的研究范式,独立完成科学、规范、严谨的研究方案设计。4. 强化科研转化能力,实现教研双向赋能引导参训者学会从日常课堂教学、教学改革、学情分析、课程实践中挖掘学术研究切入点,实现教学经验学术化、课堂案例成果化,具备独立撰写高质量外语教学研究论文的能力,助力论文发表、课题申报等教研成果积累。5. 树立严谨学术思维,提升科研创新素养培养参训者批判性文献研读能力、学术问题提炼能力与研究创新能力,学会精准识别研究空白、提炼研究创新点,掌握行文逻辑、学术规范与校验方法,全面提升外语科研素养与学术写作水平。

AI时代职业院校教师教学能力及数字素养提升专题培训

一、组织单位主办单位:教育部职业教育发展中心承办单位:上海外教社教育培训中心二、培训内容本次培训内容聚焦职业院校AI时代职业院校外语教师教学能力与数字素养提升路径,通过主题讲座、工作坊、案例解析、互动交流、成果展示等环节,重点围绕数字化教学设计、AI技术与教育教学深度融合、数字素养能力提升等核心议题,推动培训成果向教学实践的有效转化。具体包括:1.素养导向,教学为重。课程围绕 AI 赋能职业院校外语教学与教师数字素养提升路径展开,既讲解人工智能重塑外语课堂的全新教学范式,系统拆解《教师数字素养》五大维度标准,又通过实操工作坊手把手教授大语言模型、教学智能体、多模态教学资源开发等工具实操,明确AI工具使用边界,平衡技术应用与立德树人根本目标。2.聚焦外语课堂核心流程优化。采用理论讲授、案例研讨、实操演练相结合的闭环研修模式,覆盖AI辅助教学设计、人机协同口语智能测评等内容,结合岗课赛证融合要求融入跨文化能力培育,针对性解决传统外语教学资源单一、分层教学难、口语评价低效等一线痛点。3.兼顾教学成果产出与外语教师长效专业发展。培训过程组织分组共创、成果展示与互动点评,打磨可复制推广的AI外语教学案例;同时传授借助AI开展文献整理、数据采集、教研论文撰写的方法,以教促研、以研优教,搭建教学转化科研的成长路径。三、培训对象职业院校外语教学负责人、外语专业带头人、外语骨干教师或教研人员等。

特色工具

系统产品

重点教材