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 (无人驾驶的) 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 (物体) 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.

完型填空。

A)阅读下面的短文,掌握其大意,根据所给的A,B,C,D四个选项中选出最佳选项。

You________have to give thousands of dollars to help someone. Sarah, a girl from Michigan, the USA, __________ just by giving her ______ . Sarah was seriously ill______ she was a baby. It is ______ for her to move. Sarah has to______ around with a walker. However, the 11-year-old girl doesn’t ______ , she uses her experience to help others.

Last summer, Sarah ______ three days a week for seven weeks at the Grand Rapids Comprehensive Therapy(治疗)Center. She ______ one of the youngest ______ for “Therapy and Fun”, program for special-needs children. Sarah’s job was ______the special-needs children and provide(提供) them ______ advice and encouragement(鼓励).

Sarah says that she’s ______ she can share her knowledge with others, and that working at the center taught her a lot, too. “I feel my life is getting better because I can help others in ______ way,” she said. Mary Van Wingerden, Sarah’s fourth-grade teacher, said that, “Sarah has the help of other students around her, but she shows them that she’s there ______them also.”

1.A. don’t. B. doesn’t. C. isn’t. D. aren’t.

2.A. make a difference. B. makes a difference.C. make different. D. making a difference.

3.A. money. B. house. C. time. D. book.

4.A. when. B. after. C. until. D. before.

5.A. easy. B. interesting. C. difficult. D. free.

6.A. speak. B. walk. C. listen. D. run.

7.A. gives up. B. give up. C. get up. D. gave up.

8.A. worked. B. lay. C. sat. D. took.

9.A. is. B. are. C. isn’t. D. was.

10.A. doctors. B. nurses. C. volunteers. D. patients.

11.A. help. B. helps. C. helped. D. to help.

12.A. with. B. to. C. for. D. by.

13.A. sad. B. glad. C. worried. D. angry.

14.A. her. B. my. C. your. D. their.

15.A. to help. B. to watch. C. to find. D. to trouble.

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