国家开放大学(电大)理工英语4单元自测4

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。

题目 1

— Do you like that technology exhibition?

— Yes, I like it very much. .

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

题目 2

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

— Maybe its functions are questionable.

A. Really? 正确题目 3

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

— .

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

题目 4

Touch- 3D maps help the blind too much.

A. responsive 正确题目 5

This 3D printer was designed produce snacks.

A. to 正 确题目 6

二、阅读理解：阅读下面的短文，根据文章内容进行判断，正确为“ T”，错误为“F”。

Passage 1 ( 教材课文原文)

"The printer did not always manage to spread the plastic evenly, makingsome

of the ribs of the honeycomb structure of the block uneven," reported ARN

(Australian Radio Network) to the surprise of no one who has used a 3D printer.

But thearchitects remain optimistic. The first few printedblocks are meant to be

test pieces as they improve the process.

It takes about a week to print a 3-meter high block right now. The project's

leaders hope to eventually get that down to two hours and finish the first of 12

rooms in a year, and the entire house in less than 3 years.

Ultimately, 3D Print Canal House is an architectural research project, one that is

very muchbeingconductedinthe public eye: youcanactually buy tickets tovisit

the construction site for 2.50 Euros.

The top floors will become more ornate, for example, as newer techniques are

incorporated. They'll explore the possibilities of 3D printing, like the honeycomb

walls or an entire roomrecycled, redesigned, and built anew. Nobody's goingto

move into a 3D printed house soon, but, if anyone ever does, something might be

learned from this experiment by the canal.

1. According to the passage, the 3D printer can type with plastic evenly.

2. This 3D printer printed some blocks to test its work.

3. The project's leaders will finish the entire house in less than 3 years.

4. 3D Print Canal House is printed to live.

5. The canal house will be decorated more.

解析：

1. F

2. T

3. F

4. F

5. T

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。

题目 1

— What do you want to be?

— .

C. I would study computer science than dancer.

题目 2

—They are testing the 3D printer. Don’t you come and see it?

—What?

A. Where is it displayed? 正确

题目 4

3D printing is just at the beginning stage. It is not .

A. mature 正确题目 5

3D printers have spread fromlabs to industrial factories, _____ they are being

cheaper and cheaper.

A. so 正 确题目 6

二、阅读理解：阅读下面的对话，选择合适的内容将对话补充完整。Michael: They are testing the 3D printer. Don’t you come and see it?

Lucas: What? Never heard of it.

Michael: It is one of the most latest technological innovations.

Lucas: Really? 回 答

Michael: Come on! You should learn to be open-minded.

Lucas: 回 答

Michael: The 3D printing technology could be used in construction,

engineering, biomedicine, and many other fields. It can print anything, a house, a

car, evena liver!

Lucas: That can’t be true. I will never believe this.

Michael:回答

.All these will be absolutely carried out by 3D printers. There’s acompany

called Natural Machines has introduced a 3D printer for food producing.

Lucas: I gues that there are alot of procedures involvedinthis proces . Sothis

ssprinter must be very big.

Michael:回答

. It can print all kinds of dessert and starter.

Lucas: Is it expensive?

Michael:回答

A. It is about $.1,000

B. Maybe its functions are questionable

C. It is really true.

D. What are the mainfunctions of it?

E. In fact, it is as big as an oven

解析：

1. B

2. D

3. C

4. E

5. A

题目 4

She's not very optimistic the development of 3D printing.

B. about 正 确

题目 4

There are calls for lawmakers to consider copyright laws.

B. increasing

题目 5

Someone invented the 3D printer many years ago, I don’t remember

who.

B. but

题目 5

____ the new law is used one day, I hope it will not punish people using 3D

printers for personal purposes.

C. If

题目 4

Flowers grow well in a warm climate. Similarly, technology in

harmonious society.

C. flourishes

a

题目 5

She’s beeninterest ed in computer science she was eight.

B. since 正确题目 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。

Inthe gras , a baby duck was hatched (

s孵 化 ) out inacollege biology labwitha

backward left foot. At the time, it probably would’n 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.

1. Where was the baby duck hatched out? 回答正确

A. In a college biology lab.

2. What was wrong with the baby duck? 回答正确

B. It was born with a backward left 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?

回答正确

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

4. How longdidit take tocreate a permanent prosthesis for the duck? 回答正确

B. 13 hours.

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

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

treatments.

解析：

1. A

2. B

3. A

4. B

5. C