24秋国开电大春西安广播电视大学理工英语4unit4 形考成绩单元自测4（10分）参考答案(1)_1

unit4 形考成绩_单元自测4（10分）0

unit4 形考成绩_单元自测4（10分）0

试卷总分:100 得分:100国开搜题

一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。

1. — Do you prefer a portable?or a clumsy?3D printer?

— ????????????????????? .

A. ?No, a portable 3D printer is more useful.

B. Yes, I?would not have a clumsy one.

C. I prefer a portable?one to a clumsy one.

答案:

2.—?Do you?like that technology exhibition?国家开放大学作业答案

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— Yes, I?like it very much. ????????????????????? .?

A. ?It finally comes true.

B. It shows me the impressive magic power of 3D printing.

C. It is a good chance.

答案:

3.— 3D printing?is one of the latest technological?innovations.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。

—?____?Maybe its functions are questionable.

A. Really?

B. Exactly.

C. I think so.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。

答案:

4.Flowers grow well?in a warm climate.?Similarly, technology ____ in a harmonious?society. ?

A. is flourishing

B. will flourish

C. ?flourishes

答案:渝粤搜题

5.This 3D printer was designed ____ produce snacks.

A. to

B. for

C. with

答案:

6.二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。

（课外资料）

In the grass, a?baby?duck was hatched ( 孵化 ) out in a college?biology lab with a backward left foot. At the time, it?probably wouldn’t have survived,?if?Mike Gary?didn’t recommend a proper operation to cut off that bad foot.

Months after the healing process, engineers at Novacopy Company produced a 3D printed?model?that would be used to create a prosthetic?( 修复的 ) ?foot for?the duck. Considering that ABS plastics were?not flexible enough for this type of exercise, the Novacopy company made a three-dimensionally modeled foot made of silicone,?with the hope to create a permanent?prosthesis( 假肢 ) ?for the duck.

It took just 13 hours to produce. This 3D prosthesis demonstrated the 3D?technologies can?be used not only for human application, but also in foreign subjects such as animals and other medical treatments.

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1. Where was the baby duck hatched out?

??A. In a?college?biology lab.

??B. In a back yard.

??C. In Noacopy Company.

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2. What?was wrong with the baby?duck?一网一平台答案

??A. It didn’t survived.

??B. It was born with a backward left foot.

C. Mike Gary?cut off that bad foot.

3. ?Could ABS plastics be used to?produce a 3D printed?model?that would be used to create a prosthetic?foot for?the duck?

??A. No, because ABS plastics were?not flexible enough.

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??B. Yes, but it could only be produced by Novacopy Company.

??C. Yes, because it was made of silicone.国开搜题渝粤题库

4. How long did it take to create a permanent?prosthesis for the duck?

??A. 10 hours.

??B. 13 hours.

??C. 30 hours.

5. What did the last sentence of this passage indicate?

??A.?3D?technologies can?be used only for human application.

??B. 3D?technologies can?be used only for?foreigners.

??C. 3D technologies?can?be used to?human, animals and other medical treatments.

(1).

A. A

B. B渝粤搜题

C. C

答案:

(2).

A. A国开搜题渝粤题库，我们的目标是要做全覆盖、全正确的答案搜索服务。

B. B国开搜题

C. C

答案:

(3).

A. A

B. B

C. C

答案:

(4).

A. A

B. B渝粤题库

C. C

答案:渝粤搜题

(5).渝粤搜题

A. A

B. B

C. C

答案: