24秋国开电大春吉林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

国开形成性考核答案

试卷总分:100 得分:100

1. — ?Sorry. I have taken your car key by mistake.

— ? ? ? ? ? ? ? ? ? ? ? ?

A. It doesn't matter.渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

B. You're welcome.

C. That's right.

答案:

2.— ?That’s a nice car!

渝粤题库

— ? ? ? ? ? ? ? ? ? ? ??

A. You can have it.渝粤题库

B. Sorry,it's too cheap.渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

C. Oh,thanks.I go it yesterday.

答案:渝粤题库

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

A. to be told

B. to tell

C. telling渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。国开搜题国家开放大学作业答案渝粤教育

答案:

4.He was rushed to the hospital with __________ injuries.?渝粤搜题

A. multiple

B. light

C. different

答案:

5.Tom?_______ have?kept?his?promise.?I?wonder?why?he?changed?his?idea.?

A. must国开搜题

B. should

C. need

答案:

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。

渝粤教育

? ? ?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.国开形成性考核答案

? ? ?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国家开放大学作业答案

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

3. ? ?A. with ? ? ? ? ? ? ?B. to ? ? ? ? ? ? ? C. on国开搜题

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

5. ? ?A. over ? ? ? ? ? ? ?B. in ? ? ? ? ? ? ? C. at渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

(1).

A. A

B. B

C. C

答案:国开搜题

(2).

A. A

B. B

C. C

答案:一网一平台答案

(3).

A. A

B. B

C. C渝粤题库

答案:

(4).

A. A

B. B

C. C

答案:

(5).

A. A

B. B

C. C

答案: