Sanjay Dastoor: A skateboard, with a boost
安装发动机的滑板

难度级别：★★★

燕山大学 刘立军 宋葳 编写

◆INTRODUCTION

Imagine an electric vehicle that can get you to work - or anywhere in a six-mile radius quickly, without traffic frustrations or gasoline. Now imagine you can pick it up and carry it with you. Yes, this souped-up skateboard could change the face of morning commutes.

◆BEFORE VIEWING

TASK 1: VOCABULARY PREVIEW

1. radius n. a round area that covers the distance mentioned from a central point 半径范围；周围。例如：They deliver to within a 5-mile radius of the store. 他们在距离商场5英里的范围内送货上门。

2. souped-up: (informal) to make changes to sth. such as a car or computer, so that it is more powerful or exciting than before 通过改装（汽车、计算机等）增强功能

3. novel adj. (often approving) different from anything known before; new, interesting and often seeming slightly strange 新颖的；与众不同的；珍奇的。例如：a novel feature新特征

4. motor n. a device that uses electricity, petrol/gas, etc. to produce movement and makes a machine, a vehicle, a boat, etc. work 发动机；马达。例如：
○an electric motor电动机
○He started the motor. 他启动了发动机。

5. portable adj. that is easy to carry or to move 便携式的；手提的；轻便的。例如：
○a portable TV手提电视机
○(figurative) a portable loan/pension (= that can be moved if you change banks, jobs, etc.) 可转移贷款 / 养老金
○portable software可移植软件

6. maneuverable adj. 容易操作的，有机动性的。

7. footprint n. a mark left on a surface by a person's foot or shoe or by an animal's foot 脚印；足迹。例如：
○footprints in the sand沙地足迹
○muddy footprints on the kitchen floor厨房地板上的泥脚印

8. sustainable adj. involving the use of natural products and energy in a way that does not harm the environment （对自然资源和能源的利用）不破坏生态平衡的，合理利用的。例如：
○sustainable forest management合理的森林管理
○an environmentally sustainable society保持生态环境平衡的社会

TASK 2: TOPIC PREVIEW
Work in pairs and discuss the following question.

What do you think of VEHICLE?

◆VIEWING

TASK 3:
Read the statements. Then listen to the speech and check (?) the true or () false statements.

1. Today I'm going to show you an electric vehicle that weighs less than a bicycle, that you can  carry with you anywhere, that you can charge off a normal wall outlet in 15 minutes, and you can run it for 1,000 kilometers within 10 hours.

2. When I say the word electric vehicle, people think about cars and motorcycles and bicycles, and the vehicles that you use every day.

3. You can create some more interesting and novel concepts if you come about it from a different perspective.

4. This motor has enough power to take you up the hills of San Francisco at about 20 miles per hour, about 35 kilometers an hour.

5. This battery has about six miles of range, which is enough to cover about half of the car trips in the U.S. alone.

6. The best part about these components is that we bought them at a local car factory store.

7. You can pick up and carry the skateboard with you anywhere you go because it’s incredible
light.

8. This skateboard uses 20 times less energy for every mile or kilometer that you travel than a car.

◆AFTER VIEWING

TASK 4:
Work in group and discuss the following question.

What does the speaker want to tell us?

SUGGESTED ANSWERS

◆BEFORE VIEWING

TASK 2

I think a vehicle is a machine, such as a car, bus, or truck, which has an engine and is used to carry people from place to place.

◆VIEWING

TASK 3

×1. Today I'm going to show you an electric vehicle that weighs less than a bicycle, that you can carry with you anywhere, that you can charge off a normal wall outlet in 15 minutes, and you can run it for 1,000 kilometers within 10 hours. (within 10 hours改为on about a dollar of electricity)

√2. When I say the word electric vehicle, people think about cars and motorcycles and bicycles, and the vehicles that you use every day.

√3. You can create some more interesting and novel concepts if you come about it from a different perspective.

×4. This motor has enough power to take you up the hills of San Francisco at about 20 miles per hour, about 35 kilometers an hour. (35改为30)

√5. This battery has about six miles of range, which is enough to cover about half of the car trips in the U.S. alone.

×6. The best part about these components is that we bought them at a local car factory store. (at a local car factory store 改为at a toy store)

√7. You can pick up and carry the skateboard with you anywhere you go because it’s incredible light.

√8. This skateboard uses 20 times less energy for every mile or kilometer that you travel than a car.

◆AFTER VIEWING

TASK 4

There are two main ideas the speaker was trying to convey in the speech.

The first is that new inventions can come from unexpected places. This is, by a wide margin, the lightest electric vehicle ever made, and it's possible because of motor and battery technology developed for remote control toys. They thought it was cool, and they built it for fun, and it turned out to be quite practical.

The second is a new vision for transportation. Cars and motorcycles and bicycles are great for certain things, and not for others. They have got some new ideas for vehicles, like something that integrates easily with public transit, or quickly charges from a wall outlet, or can be easily carried upstairs into your apartment, or goes 1000km on about $1 of electricity. It could be a skateboard, or maybe a different kind of platform, but they think short-distance transportation can be more efficient and sustainable, which is absolutely good for the environment protection.

The speaker encourages us to think differently about transportation, which is also important about other things in our daily life.

ATTACHMENT: Sanjay Dastoor: A skateboard, with a boost

Sanjay Dastoor: A skateboard, with a boost

0:12
Today I'm going to show you an electric vehicle that weighs less than a bicycle, that you can carry with you anywhere, that you can charge off a normal wall outlet in 15 minutes, and you can run it for 1,000 kilometers on about a dollar of electricity. But when I say the word electric vehicle, people think about vehicles. They think about cars and motorcycles and bicycles, and the vehicles that you use every day. But if you come about it from a different perspective, you can create some more interesting, more novel concepts.
0:48
So we built something. I've got some of the pieces in my pocket here. So this is the motor. This motor has enough power to take you up the hills of San Francisco at about 20 miles per hour, about 30 kilometers an hour, and this battery, this battery right here has about six miles of range, or 10 kilometers, which is enough to cover about half of the car trips in the U.S. alone. But the best part about these components is that we bought them at a toy store. These are from remote control airplanes. And the performance of these things has gotten so good that if you think about vehicles a little bit differently, you can really change things.
1:28
So today we're going to show you one example of how you can use this. Pay attention to not only how fun this thing is, but also how the portability that comes with this can totally change the way you interact with a city like San Francisco.
1:42
(Music)
2:49
(Applause) (Cheers)
2:59
So we're going to show you what this thing can do. It's really maneuverable. You have a hand-held remote, so you can pretty easily control acceleration, braking, go in reverse if you like, also have braking. It's incredible just how light this thing is. I mean, this is something you can pick up and carry with you anywhere you go.
3:27
So I'll leave you with one of the most compelling facts about this technology and these kinds of vehicles. This uses 20 times less energy for every mile or kilometer that you travel than a car, which means not only is this thing fast to charge and really cheap to build, but it also reduces the footprint of your energy use in terms of your transportation. So instead of looking at large amounts of energy needed for each person in this room to get around in a city, now you can look at much smaller amounts and more sustainable transportation.
4:00
So next time you think about a vehicle, I hope, like us, you're thinking about something new.
4:05
Thank you.
4:06
(Applause)