What would the world be like if cars could drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner, or a car full of passengers who are reading, listening to music or even sleeping, but none of them are worried about the road ahead.

Well, all of this could be the future of driving. There are several companies, including Google, working on driverless (無人駕駛的) cars, which are currently in the testing stages. If the tests are successful, these electric, self-driven cars could be available very soon. But, how is it possible for a car to drive itself?

Cars already have many features allowing them to take over for drivers in certain situations. Some features include cars being able to park themselves, or slow down when they detect objects (物體) close by. They can also control the speed if there are dangerous conditions, such as snow or slippery (滑的) roads.

Other features have also changed the way drivers react to some situations. Scientists and engineers believe, with the help of wireless signals, cameras and GPS, we are now at a stage where creating a safe self-driving car might be possible.

The self-driven car may be the answer to lowering the number of deadly (致命的) accidents caused by careless drivers or dangerous conditions. However, there are still some people who do not like the idea. American lawyer Whit Drake, for example, doesn’t believe these cars are safe. He thinks the possibility of the technology making a mistake will be too high.

1.What does the underlined phrase “take over for” in Paragraph 3 mean?

A. direct the way for B. take the place of

C. work better than D. make use of

2.Cars already have the following features EXCEPT ________.

A. parking itself

B. controlling its speed in dangerous situations

C. slowing itself down near an object

D. avoiding car accidents one hundred percent

3.Scientists and engineers think that ________.

A. it’s possible to make safe self-driven cars

B. it’s a long way for self-driven cars

C. there will be no drivers in the future

D. self-driven cars may cause more accidents

4.What does the article mainly talk about?

A. Advantages of self-driven cars.

B. Different opinions on self-driven cars.

C. Possibilities of self-driven cars.

D. Google’s new technology—self-driven cars.

練習冊系列答案
相關(guān)習題

科目:初中英語 來源:2015-2016學年湖北武漢黃陂區(qū)部分學校八年級3月月考英語試卷(解析版) 題型:完形填空

完形填空。

When I was a teenager growing up in France, I wanted to leave school and have my own life. The only way I could ________this was to work in the paper factory in my town, or get married. I was very nervous, then I told my ________ I wanted to leave school. I thought he would say, “________ You are going to college(大學).” I was very ________ when he said, “OK. Let's go to the paper factory.”

Two days later, ________ took me to the factory. I imagined everyone to be friends________together and having fun. I even imagined there would be music and singing. I ________I had watched too many movies as a teenager.

When we ________the factory gate, my father spoke to the guard (門衛(wèi)) and one minute later we were ________. I walked around the factory looking at the building, the workers, and listening to the noise. It was ________. I ran back to my father and said, “I want to go home.”

He asked me, “What do you think of the ________?”

“Too bad,” I answered.

“And marriage(婚姻) is even ________ ! ” he said.

I went back to school the next day thinking about studying hard ________ I could get into a good college. I ________ studying English so I decided to major in (主修)languages at college. Thanks to my father and our ________to the paper factory, I now work at the United Nations and my father is very proud of me. I married a very good man and my life is much better than it would have been working in the factory!

1.A. say B. do C. left D. moved

2.A. teacher B. friend C. father D. husband

3.A. Yes! B. No! C. Really? D. OK?

4.A. angry B. tired C. nervous D. surprised

5.A. he B. she C. it D. they

6.A. working B. studying C. singing D. farming

7.A. guess B. mean C. say D. hope

8.A. looked at B. returned to C. got to D. arrived

9.A. outside B. inside C. back D. away

10.A. terrible B. wonderful C. funny D. special

11.A. workers B. guard C. building D. factory

12.A. better B. harder C. worse D. easier

13.A. but B. if C. so D. or

14.A. enjoyed B. stopped C. disliked D. minded

15.A. way B. idea C. plan D. trip

查看答案和解析>>

科目:初中英語 來源:2016屆浙江杭州高橋初中教育集團九年級下學期二次質(zhì)檢英語卷(解析版) 題型:閱讀理解

Is there intelligent (有智力的) life on other planets? For years, scientists said “no.” or “we don’t know.” But today this is changing. Seth Shostak and Alexandra Barnett are astronomers(天文學家). They believe intelligent life exists (存在) somewhere in the universe. They also think we sill soon contact these beings(人;生物).

Why do Shostak and Barnett think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. “This is long enough for other planets to have intelligent life,” say Shostak and Barnett. The second reason is size—the universe is huge. “Tools like the Hubble Telescope(哈勃望遠鏡) have shown that there are at least 100 billion galaxies,” says Shostak. “And our galaxy, the Milky Way, has at least 100 billion stars. Some planets going around these stars might be similar to Earth.”

In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes allow scientists to discover smaller planets—the size of Mars or Earth—in other solar systems. These planets might have intelligent life.

Have beings from space already visited Earth? “Probably not,” says Shostak. “It’s a long way away. However, intelligent beings may contact us in other way, such as radio signals(信號). In fact, they may be trying to communicate with us now, but we don’t have the right tools to receive their messages. However, this is changing. By 2025, we could make contact with other life forms in our universe and we might help each other.”

1. Seth Shostak and Alexandra Barnett are _____.

A. astronomers B. farmers C. singers D. drivers

2.What is the best title for Paragraph 2?

A. The Age and Size of Earth.

B. Our Galaxy: The Milky Way

C. Why Intelligent Life Might Exist.

D. Earth: The Only Planet with Intelligent Life

3.Why was it hard to look for signs of intelligent life in the universe in the past?

A. There were not any smaller planets.

B. There were not any powerful telescopes.

C. The astronomers were not interested in them.

D. The Milky Way didn’t exist at that time.

4. Why haven’t beings from space visited us yet according to Shostak?

A. They’re afraid of us.

B. It’s a long way away.

C. They don’t want to see us.

D. They don’t know how to use radio signals.

5.What does the underlined phrase “l(fā)ife forms” in the last paragraph mean?

A. Messages B. Tools

C. Intelligent beings D. Radio signals

查看答案和解析>>

科目:初中英語 來源:2015-2016學年江蘇江陰山觀第二中學八年級3月月考英語試卷(解析版) 題型:單項填空

---This is _________ film I’ve told you about several times.

---It’s great. I’ve never seen ________ more moving one.

A. a; a B. the; the

C. a; the D. the; a

查看答案和解析>>

科目:初中英語 來源:2015-2016學年江蘇江陰山觀第二中學八年級3月月考英語試卷(解析版) 題型:單項填空

You have worked for a long time. You ____________ be very tired.

A. must B. can’t C. could D. mustn’t

查看答案和解析>>

科目:初中英語 來源:2016屆江西崇仁第二中學九年級下學期第一次模擬測英語試卷(解析版) 題型:完形填空

閱讀下列短文,掌握其大意,然后從各小題所給的A、B、C、D四個選項中,選出最佳答案。

It was a cold winter’s night when I stopped for gas on my way home from work. I felt ______and had a slight headache.

I worked in a ______ doctor’s office. During those days, the office was often ______ people who had a cold, which made me even busier than usual. It seemed I was going to be late______ home and my husband would be ready to pronounce me late once again. But maybe ______I hurried, I could still make it.

I was heading inside to ______ for my gas when I noticed an old couple(夫妻)at the counter. I heard them asking the ______ to the nearest hospital. It was the hospital that I had just ______ a few minutes ago.

The young man at the counter was trying to be ______ by explaining how to get there. But the fact was that he was telling them a whole ______ route. So I walked over to the couple and said, “Would you like to ______ me to the hospital?” Then I saw a look of relief(輕松)over their faces. “I’m going there, too,” I said, which wasn’t a lie since I had just ______ up my mind to do it perfectly.

I got in my car and began to drive ______ . I looked back several times to be ______ they were right behind me. It took us only fifteen ______ to get there as rush hour traffic was beginning to die down. I felt better than I did all day and my headache was nearly gone.

1.A. boring B. sad C. free D. tired

2.A. busy B. free C. proper D. noisy

3.A. called for B. asked for C. filled with D. pleased with

4.A. getting B. making C. calling D. working

5.A. unless B. if C. though D. while

6.A. cost B. take C. pay D. spend

7.A. distance B. number C. price D. way

8.A. waited B. gone C. arrived D. left

9.A. careful B. thankful C. helpful D. wonderful

10.A. wrong B. same C. special D. perfect

11.A. lead B. take C. show D. follow

12.A. kept B. made C. taken D. fixed

13.A. back B. up C. out D. down

14.A. worried B. sure C. angry D. surprised

15.A. minutes B. hours C. days D. weeks

查看答案和解析>>

科目:初中英語 來源:2016屆江西崇仁第二中學九年級下學期第一次模擬測英語試卷(解析版) 題型:單項填空

—Did you catch the first subway this morning?

—No,I didn't.It had started moving______I could get on it.

A.since B.a(chǎn)fter C.a(chǎn)s soon as D.before

查看答案和解析>>

科目:初中英語 來源:2015-2016學年江西崇仁縣第二中學八年級下學期第一次月考英語試卷(解析版) 題型:單項填空

Where’s my old bike?

—I_______ to a poor boy.

A. gave away it. B. gave it out.

C. gave out it D. gave it away

查看答案和解析>>

科目:初中英語 來源:2015-2016學年江蘇江陰華士實驗中學八年級下學期3月階考英語卷(解析版) 題型:單詞拼寫

根據(jù)括號內(nèi)所給的中文,寫出單詞的正確形式,用括號內(nèi)所給單詞的適當形式填空。

1.There is no ______________(交流) between us for a long time.

2.What a _____________(美妙的) time the children had last summer holiday!

3.Uncle Tom usually____________(放松) by playing chess after a hard day’s work.

4.After the teacher said, “Class is __________”(結(jié)束), all the boys ran out of the classroom.

5.Cats is said to be one of the most popular Broadway__________ (music).

6.The company has done ___________ (busy) with many countries.

7.These bags are their ___________ (wife). We’d better look after them well.

8.This is my sister’s ______________(twenty)birthday. We’ll have a party for her this evening.

查看答案和解析>>

同步練習冊答案