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)

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)

双语阅读 | 用运动对抗抑郁和焦虑能否等同于正规治疗?

用运动对抗抑郁和焦虑能否等同于正规治疗?Is exercise as effective as treatments for depression and anxiety?文本难度:六级刘立军供稿Is exercise as effective as treatments for depression and anxiety? Some big studies say yes. Many experts have reservations. 运动对抗抑郁、抗焦虑的疗效,能和正规治疗相媲美吗?一些大型研究给出了肯定的答案,但许多专家对此仍持保留意见。For those in the doldrums, few things are more tiresome than being told to exercise. But unwelcome advice is not necessarily wrong. Study after study has found that exercise boosts mood and reduces anxiety. Two large analyses published earlier this year go further, suggesting it works about as well as therapy or antidepressants. 对于那些正处于情绪低谷的人来说,几乎没有比听到别人劝自己“去运动”更让人心烦的了。但不中听的建议未必就是错的。一项又一项的研究发现,运动能够提振情绪,缓解焦虑。今年早些时候发表的两项大型分析进一步表明,运动的治疗效果与心理治疗、抗抑郁药物不相上下。The first, published in January by researchers based across Britain and Ireland, took the form of a Cochrane review — a well-regarded meta-analysis of health-care research. It pooled the results of 69 randomized-controlled trials (RCTs) conducted to measure the effects of exercise on depression. The second paper, published in February in the British Journal of Sports Medicine, was a so-called meta-meta-analysis. It drew on more than 1,000 trials involving nearly 80,000 participants. Both concluded that exercise reduces symptoms of depression and anxiety by roughly as much as conventional treatments. 第一项研究由英国和爱尔兰的研究人员完成,于今年1月发表,采用了备受推崇的科克伦(Cochrane)系统评价形式——这是医疗领域广受认可的一种荟萃分析。该研究汇总了69项随机对照试验(RCTs)的数据,这些试验专门用来评估运动对抑郁症的作用。第二篇论文于2月发表在《英国运动医学杂志》上,采用了所谓的“二次荟萃分析”。研究参考了1000余项试验,受试者近8万名。两项研究均得出结论:运动在缓解抑郁、焦虑症状方面的效果,与常规治疗方法大致相当。There are important caveats. Meta-analyses are only as good as the studies they include, and exercise trials are prone to being skewed. For one thing, participants cannot be blinded — they know if they are doing kettlebell swings or not — which makes their self-reported mood vulnerable to any favorable expectations they might have. For this and other reasons, the Cochrane review judged all the studies it included to be at “high risk” of bias. 但该结论存在重要的限定条件。荟萃分析的可靠性完全取决于所纳入的原始研究,而运动类试验往往容易出现结果偏倚。首先,参与者无法实施“盲法”——自己是否完成壶铃摇摆这类运动,参与者心知肚明。这就导致参与者主动上报的情绪,很容易受到内心积极预期的影响。出于上述及其他因素,这份科克伦系统评价判定,其纳入的所有研究均存在“高偏倚风险”。What’s more, the meta-meta-analysis did not include any studies that tested exercise against other interventions. The findings from the exercise trials were, instead, compared against those from separate trials of antidepressants or therapy. But unlike exercise studies, RCTs of antidepressants are typically well blinded and have strong placebo effects, making it harder for them to achieve similarly impressive results. “I don’t think it’s a fair comparison,” says Jonathan Roiser, a professor of neuroscience at University College London. 此外,这项“二次荟萃分析”并未纳入任何将运动与其他干预措施进行直接对比的研究。它是把运动试验的结果,与另外独立开展的抗抑郁药、心理治疗试验的数据做比对。但与运动研究不同,抗抑郁药物的随机对照试验通常盲法设计完善,且安慰剂效应显著,这使得药物想要取得同样令人瞩目的疗效数据难度更大。伦敦大学学院的神经科学教授乔纳森·罗伊泽(Jonathan Roiser)表示:“我认为这样对比并不客观。”All the same, most researchers are confident that exercise helps improve mood. Aerobic workouts, such as running, walking or cycling, seem to be particularly beneficial across the board. For depression, group-based or supervised exercise is more effective than sweating alone, and the benefits of exercise accrue over several months. For anxiety, the best results seem to come from lower-intensity activity. 尽管如此,绝大多数研究人员仍认可运动有助于改善情绪。跑步、散步或骑车等有氧运动,总体来看大有裨益。针对抑郁症,团体运动或在专业人员指导下开展的运动,效果优于独自锻炼,且运动带来的益处会数月里不断累积。而对于焦虑症,低强度运动似乎能带来最佳效果。Why exercise works is less clear. The popular idea that exercise generates a “high” by causing the release of endorphins, a form of opioid, has little scientific support. A study published in 2021 found that blocking runners’ opioid receptors reduced neither the euphoria they reported after a session nor the drop in anxiety. Researchers instead think that endocannabinoids — chemicals produced by the body and brain that activate the same receptors as the active molecules in cannabis — might be responsible for these short-term boosts. 至于运动为何有效,具体机制尚不明确。有一种广为流传的说法:运动会促使内啡肽(一种阿片样物质)的释放,从而让人产生愉悦感,但这一说法缺乏足够的科学依据。2021年的一项研究发现,阻断跑步者体内的阿片类受体,既不会降低他们运动后的欣快感,也不会减弱焦虑的缓解程度。研究人员转而认为,内源性大麻素可能是带来这种短期情绪提升的原因;这类物质由人体和大脑合成,能激活与大麻有效成分相同的受体。Other pathways are also being triggered. Exercise seems to reduce inflammation and improve brain plasticity, as well as increasing the transmission of dopamine in the brain. Dopamine is involved in the process of weighing effort against reward, and so increasing transmission may help reverse the loss of motivation associated with depression. 运动还会激活其他生理机制:它能够减轻炎症,提升大脑可塑性,并增加大脑内多巴胺的传递。多巴胺参与了“权衡付出与回报”这一心理过程,因此,增加多巴胺的传递有助于改善抑郁症患者典型的动力缺失问题。There are purely psychological benefits, too: exercise can provide people with a sense of achievement, agency and eventually mastery, all of which are known to lift mood. Plenty of reasons, then, to work up a sweat. 此外,运动还能带来纯粹的心理益处:它能给人带来成就感、自主感,最终获得一种掌控感,而这些都能够提振情绪。如此看来,我们完全有理由动起来,好好出一身汗。 【词汇】 1. in the doldrums 情绪低落2. meta-analysis n. 荟萃分析(一种循证医学研究方法,把多个独立的同类研究的数据汇总、合并分析,得到一个综合性结论,研究说服力高于单一试验)3. caveat n. 警告;提醒4. skew v. 使……有偏差;影响……的准确性5. placebo n. 安慰剂6. neuroscience n. 神经科学7. aerobic adj. 有氧的8. accrue v. 积累;增加9. endorphin n. 内啡肽10. opioid n. 阿片样物质(既可来源于外界毒品,也包含人体自身合成的内啡肽,能够起到镇痛、产生欣快感的作用)11. receptor n. 受体;感受器12. euphoria n. 欣快感;极度愉快13. cannabis n. 大麻14. inflammation n. 炎症15. dopamine n. 多巴胺(本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 疫苗:科学与恐慌之争

Vaccines: Science vs. Scare疫苗:科学与恐慌之争常速 | 五级(难)| 784词 | 5min22s刘立军供稿Part I. QUESTIONSListen to the interview and choose the best answer to each question you hear.Q1. What is the only disease that humanity has eradicated? A. Polio. B. Smallpox. C. Measles. D. Malaria. Q2. What does Dr. Kate O’Brien suggest about the concept of “natural immunity”? A. It is more effective than vaccination. B. It is a safer way to develop immunity. C. It involves the immune system responding to germs. D. It is recommended for children by most scientists. Q3. What can be inferred about the immune system from the discussion? A. It is constantly exposed to microbes. B. It is overwhelmed by multiple vaccines. C. It cannot mature without vaccination. D. It is weaker in children than in adults. Q4. What is the main purpose of timing the vaccination schedule? A. To ensure vaccines are given at the lowest cost. B. To align with WHO global recommendations. C. To provide protection when children are most at risk. D. To avoid interference between different vaccines. Q5. What is the main idea of the passage? A. To introduce the global smallpox eradication campaign and its achievements.B. To answer parents’ common worries and misunderstandings about vaccination.C. To explain the complete standards of WHO’s official vaccine schedule.D. To compare natural immunity and vaccine immunity in detail.Part II. TRANSCRIPTVaccines: Science vs. ScareVGS: We’re standing here in front of the statue commemorating the smallpox eradication campaign. (Q1) Smallpox being the only disease that the world, humanity, has eradicated. This WHO-led campaign was the first mass vaccination campaign that brought together countries, experts and communities. Today, we have 30 vaccines that can prevent many many diseases. And 154 million lives have been saved, in the last 50 years, by just 14 of those vaccines. So if you’re a new parent, you may have questions about vaccines. We have Doctor Kate O'Brien here with us to answer your questions. Kate, let’s start with — parents may have heard what if we let our child get sick and develop immunity rather than vaccinate them? What is your advice regarding that?smallpox n. 天花 vaccinate v. 接种疫苗 KOB: The first thing I want to say is that the vaccines that have been developed that are in our program, are vaccines against serious diseases. Sometimes we hear the term natural immunity. And I really want to address this question. (Q2) Some people think that getting infected is somehow more natural than it is to develop your immunity from a vaccination. And I really want to disavow this. It’s the immune system in either circumstance is responding to either a germ or the vaccine itself. What’s most important is that exposing children to infections and risking the consequences of serious disease, and in the worst circumstances, death, is not what any parent would want to do.disavow v. 否认,拒绝承认 VGS: Another question that young parents may have is if you give a child many vaccines at the same time, you might overwhelm their immune system. What would you say to that?KOB: (Q3) Children are exposed to, in fact, millions of different microbes in the natural environment around us, in their foods, in the environment, by touching things, in their own bodies. We all have, in fact, more microbes in our body than we do human cells. This is an important way that children’s immune systems develop. The issue is, how to allow children to develop immunity against those germs that are consequential, that are serious, that cause disease. So the point around the vaccines is, children’s immune systems are more than able to respond to multiple vaccines, given at the same time, and multiple doses that are given over the course of their lifetime. Although we perceive that they’re being given “a lot of vaccines” in fact, on a daily basis, children are being exposed and sampling that outside world of those microbes all the time. The immune system is an incredibly powerful system. It’s amazing the way that it matures and identifies which is friend and which is foe in the environment. And vaccines are the safest way to actually derive protection for children, adolescents and adults against the consequential germs.consequential adj. 重要的,意义重大的 VGS: Can parents maybe stagger the schedule? Give a little space? Would that still have the same impact that you are seeking in protecting the child?KOB: Yeah. So this seems like a common sense, logical thing to do. We have studies that tell us in what sequence the vaccines should be given, how many doses should be given and how far apart they should be. Now, when you mess around with that schedule, there are consequences of doing that. First, it means that children may miss the doses that they should get. Second, it means that they may not get the vaccines at the time when they most need them. (Q4) We time the schedule so that the protection is developed before the period of time when children are most at risk of the particular disease that the vaccine is protecting against. And third, there are some vaccines that need to be timed relative to other vaccines that are in the schedule. They don’t work as well if they’re timed incorrectly. So that’s the reason why we have pediatricians, scientists, epidemiologists who make the recommendations within each country for what the schedule should be.VGS: So WHO makes a recommendation, right? But who is deciding on what vaccinations a citizen receives?KOB: Countries are the ones who decide on their schedule. What WHO does is, because we’re a global recommending body, we pull together experts from around the world. We ask them to look at all of the evidence that is available and we provide recommendations to countries. They can rely on the aggregated evidence that we’ve put together, so they can also deliberate on what makes most sense for their particular circumstance.VGS: Thank you Kate. I have additional questions. I’m sure our viewers have additional questions. So we will take this in part two where we will answer some of your questions on vaccines. Until next time then, stay safe, stay healthy and stick with science.Part III. KEYQ1. B.【解析】细节题。根据“Smallpox being the only disease that the world, humanity, has eradicated.”, 此句明确指出天花是人类唯一消灭的疾病,因此正确答案为B。 Q2. C.【解析】细节题。根据“Some people think that getting infected is somehow more natural than it is to develop your immunity from a vaccination… It’s the immune system in either circumstance is responding to either a germ or the vaccine itself.”,该句说明无论是自然感染还是接种疫苗,免疫系统都会对外来病菌产生反应,因此正确答案为C。 Q3. A.【解析】推理题。根据“Children are exposed to, in fact, millions of different microbes in the natural environment around us, in their foods, in the environment, by touching things, in their own bodies.”,此处说明孩子在日常环境、食物、身体中时刻接触数百万微生物,免疫系统长期接触各类细菌,因此可以推断正确答案为A。 Q4. C.【解析】细节题。根据“We time the schedule so that the protection is developed before the period of time when children are most at risk of the particular disease that the vaccine is protecting against”,该句明确指出安排疫苗接种时间是为了在儿童高危阶段前建立防护,因此正确答案为C。 Q5. B.【解析】主旨题。文章主要围绕疫苗对儿童的重要性以及父母对疫苗的常见顾虑展开,专家逐一破除误区、解答疑惑,因此正确答案为B。 (本文图片来源于摄图网,版权归摄图网所有)

新闻听力 | 烟草陷阱

The tobacco trap烟草陷阱常速 | 五级(偏难)| 885词 | 5min23s刘立军供稿Part I. QUESTIONSListen to the interview and choose the best answer to each question you hear.Q1. What is the main purpose of the text? A. To highlight the tactics of the tobacco industry. B. To discuss the benefits of quitting tobacco use. C. To explain the history of tobacco advertising. D. To promote the use of e-cigarettes as alternatives. Q2. How many people do the tobacco industry’s products kill globally every year according to Simone St. Claire? A. Around six million people. B. Around eight million people. C. Around ten million people. D. Around four million people. Q3. What can be inferred about the tobacco industry’s use of flavours? A. Flavours are added to make tobacco safer. B. Flavours are designed to make tobacco less appealing. C. Flavours are intentionally used to attract young users. D. Flavours are chosen randomly without specific design. Q4. What does the word “sophistication” most likely mean in the context of slim cigarettes? A. Complexity. B. Elegance. C. Danger. D. Simplicity. Q5. Which of the following is NOT a tactic used by the tobacco industry as mentioned in the text? A. Using social media influencers. B. Placing products near candy in stores. C. Designing products to look like gadgets. D. Reducing the harmful effects of tobacco. Part II. TRANSCRIPTThe tobacco trapVGS: There is an industry that spends over a million dollars an hour on advertising. And they’re constantly looking for younger and newer consumers. Do you know why? Because they know that their product kills up to half of its users. (Q1) We are talking about the tobacco industry today and our expert is Simone St. Claire. Welcome, Simone. So we know that there are no safe tobacco products, right, whether it’s shisha, chewing tobacco, rolled cigarettes. So how is it that the tobacco industry is succeeding in selling us death and destruction continuously?SSC: Great question. (Q2) The tobacco industry is well aware that their products kill around eight million people globally every year. To sustain their business, they must continuously recruit new users to replace those who die from using their products. And because their products are so harmful, they must do everything they can to make them attractive, especially to young people. One of their biggest tactics is flavours. If you think about it, tobacco on its own is harsh and unappealing. But when you add mint, mango, bubblegum or vanilla, they seem less dangerous. (Q3) Flavours are meant to hook you and then keep you addicted. This is not by accident, this is by design. Research shows that flavours are one of the main reasons that children and young people start using nicotine and tobacco products and once they start, they become addicted quickly.mint n. 薄荷 vanilla n. 香草 VGS: So just like flavours, there is research that shows packaging can attract consumers to products, right? How does the tobacco and nicotine industry use packaging to attract younger and younger people and women, especially?SSC: Tobacco companies use minimalist designs and bright colours to make their products look premium or even clean. But as you mentioned, there is no such thing as a safe tobacco product. Let’s take slim cigarettes, for example. (Q4) These are cigarettes that are designed with narrower dimensions and traditionally marketed to women. They’re often associated with sophistication and elegance and are wrongly perceived to be less dangerous. But in reality, they pose comparable risks to regular cigarettes. Then if we look at the more recent nicotine products, sleek, colourful and high-tech. To be clear, when we’re talking about nicotine products, the most common is e-cigarettes, also known as vapes. (Q5-3) E-cigarettes are designed to look like USB sticks, lipsticks and stylish gadgets, which are easy to disguise and conceal from parents and teachers, which is particularly concerning when it comes to children and young people.premium adj. 高端的,优质的 sophistication n. 精致sleek adj. 光滑的,时尚的 VGS: So we know that most people who consume tobacco products know that it is harming their body but let’s go over it again. How exactly does tobacco impact our body?SSC: Tobacco use harms nearly every organ of the body. It causes heart disease, respiratory conditions, and over 20 types of cancer, including lung cancer. Tobacco is a major risk factor for noncommunicable diseases (NCDs) and premature death. But the good news is that the benefits of quitting can be felt almost immediately. Within 20 minutes, blood pressure and heart rate drop. Within two to 12 weeks, lung function and circulation improves. Within a year, the risk of heart disease is cut in half and over time, the risk of tobacco-related diseases decreases dramatically.respiratory adj. 呼吸的 VGS: Another interesting fact here is the plain packaging or graphic warnings that you often see on cigarette boxes, that’s actually a result of the work that WHO and partners have done to bring in those policies to inform consumers about the dangers of tobacco. So let’s talk about another tactic and that’s advertising. You see tobacco advertising in music concerts, in sports events. Talk to us about that.SSC: Exactly, the marketing budget of big tobacco is larger than the GDP of some countries. They spend tens of billions of dollars every year to hide the truth that tobacco kills. (Q5-1) They use social media influencers, music festivals and giveaways to promote their harmful and addictive products. They use cartoon-like branding and sleek advertising to attract young users and (Q5-2) you’ll notice in some stores, they place nicotine and tobacco products near candy, which leads children to believe that they are innocent or even exciting.VGS: Simone, how can public health agencies, like WHO, stand up to the tobacco industry, which seems to have massive resources, right?SSC: Science, evidence and awareness is key. The more people know about these tricks, the less effective they become. We need to ensure that people are aware of just how harmful tobacco products are and how they destroy families and lives. WHO and countries are working together to put in place public health policies, things like smoke-free public places, bans on advertising, making products less affordable by introducing taxes and putting graphic images and health warnings on product packaging. And latest data shows that more than five billion people around the world are protected by at least one of these measures. This is a result of strong and decisive regulatory action. As a consumer, don’t be fooled. If nicotine or tobacco products look fun, tasty or trendy, they’re designed that way to hook you. So spread the word and support policies that protect public health.decisive adj. 决定性的,果断的 VGS: Thank you, Simone. That was Science in 5 today. Until next time then, stay safe, stay healthy and stick with science.Part III. KEYQ1. A.【解析】主旨题。根据“Today we are talking about the tobacco industry...”以及文章中多次提到烟草行业的策略和手段,可知此文主要讨论了烟草行业如何通过各种方式吸引用户并维持其业务。因此正确答案为A。 Q2. B.【解析】细节题。根据“The tobacco industry is well aware that their products kill around eight million people globally every year.”,可知全球每年约 800 万人因烟草制品死亡。因此正确答案为B。 Q3. C.【解析】推理题。根据“Flavours are meant to hook you and then keep you addicted. This is not by accident, this is by design.”,可知添加口味是有意设计的,目的是使人让人上瘾并保持依赖。由此可以推断,烟草行业故意使用口味来吸引年轻用户,因此正确答案为C。 Q4. B.【解析】词汇题。根据“These are cigarettes that are designed with narrower dimensions and traditionally marketed to women. They’re often associated with sophistication and elegance and are wrongly perceived to be less dangerous.”,可知这些香烟设计得更细,传统上销售给女性。它们通常与优雅联系在一起,在这一语境中,sophistication与优雅相关,指指精致、高雅。因此正确答案为B。 Q5. D.【解析】细节题。根据“They use social media influencers, music festivals and giveaways to promote their harmful and addictive products.” 和“You’ll notice in some stores, they place nicotine and tobacco products near candy, which leads children to believe that they are innocent or even exciting.” 以及“E-cigarettes are designed to look like USB sticks, lipsticks and stylish gadgets, which are easy to disguise and conceal from parents and teachers.” 这些句子分别说明了A、B和C选项的内容,而文中未提到烟草行业通过减少烟草的有害影响作为策略,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 | 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

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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。

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