24春国开电大西安广播电视大学理工英语3unit7单元自测7（预备知识：Unit 7；10分）参考答案

unit7_单元自测7（预备知识：Unit 7；10分）0

unit7_单元自测7（预备知识：Unit 7；10分）0

渝粤教育

试卷总分:100 得分:100

1. — ?Some cars are really expensive.

— ? ? ? ? ? ? ? ? ? ? ? ?

A. Certainly they are. They burn less gas.?国开形成性考核答案

B. I do hope so.?

C. I don't know about that.?

答案:

2.— ?If you like I can mail the tax bill for you?

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— ? ? ? ? ? ? ? ? ? ? ??

A. You are great.国开搜题

B. You are so kind.

C. That's very kind of you.

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3.The organization has __________ a campaign to raise money for the election.国开形成性考核答案

A. take

B. make渝粤题库

C. launch

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4.The news reporters hurried to the airport, only ______the film stars had left.

A. telling

B. to be told

C. to tell

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5.This medicine __________ before dinner.?

A. should have been took

B. should have taken渝粤搜题

C. should be taken

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6.二、完型填空：阅读下面短文，从A、B、C三个选项中选择合适的内容将短文补充完整。

? ? ?You jump into a car, tell it where you want to go then sit back and let a computer take control. It seems a dream in the future. It isn't.

? ? ?In many ways such driverless cars are already with us. There is partial automation in many cars, such as intelligent braking, lane departure warning and automatic parking. The systems are there ?cars can pretty much drive themselves. No one noticed the introduction of cruise control. We've got collision avoidance, and we'll soon have automatic lane change.

? ? ?Improving this technology should make the roads safer. Machines are much better at following rules than humans. Driveway signs advise drivers to slow down to avoid ?jams. They are often ignored by drivers. But it won't happen ?a computer. Driverless cars could also choose the best route to avoid traffic jams.

? ? ?Fewer jams will mean ?stop-start driving. Maintaining smooth and constant speeds will improve fuel efficiency. Computers could also be programmed to take the greenest route, rather than the fastest one. Under?computer control, cars could also travel much closer together.

? ? ? They can effectively “slipstream” one another and use less fuel to move themselves forward. They can even form multi-car “trains” going ?high speeds. However, with driverless cars on the roads, there will be potential trust issues between people and machines. We could therefore see guard rails back on the sides of pavements. This would be a backwards step.

1. ? ?A. because ? ? ? B. so that ? ? ? ?C. such as国开搜题

2. ? ?A. creating ? ? ? ?B. to creat ? ? ? C. creat

3. ? ?A. with ? ? ? ? ? ? ?B. to ? ? ? ? ? ? ? C. on

4. ? ?A. more ? ? ? ? ? ? B. little ? ? ? ? ? ?C. less

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5. ? ?A. over ? ? ? ? ? ? ?B. in ? ? ? ? ? ? ? C. at

(1).

A. A

B. B

C. C

答案:

(2).

A. A

B. B

C. C国家开放大学作业答案

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(3).一网一平台答案

A. A

B. B

C. C国家开放大学作业答案

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(4).

A. A

B. B

C. C渝粤教育

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(5).渝粤教育

A. A

B. B

C. C国家开放大学作业答案

答案: