Question

Have you ever had dreams about building a robot? Or putting together a spaceship? Or even seeing your face made out of chocolate? Done. All you need is a 3-D printer!

The possibilities of 3-D printing seem endless. All the user has to do is to design(设计) an object on the computer and choose a material(材料) to print in. The printers print in hundreds of different materials including glass, sugar and even skin! When the user presses “print”, the 3-D printer spreads the material layer(层) by layer and like magic the object is produced.

The first 3-D printer was invented in 1986 by an American, Charles Hull. But 3-D printing has only become cheap enough recently for most people to use. Designers now use 3-D printing to create unusual things. The Dutch artist Dirk Vander Kooj prints furniture made from old fridges. And doctors have used 3-D printing to print human body parts! The Telegraph reported in February that scientists from Cornell Medical College even printed a man-made ear.

But like a lot of new technologies, if 3-D printing gets into the wrong hands, it can be dangerous. In 2011 a group of four men in the US used 3-D printing to produce ATM skimmers (提款机盗刷器). These were placed on an ATM and stole over $400,000 from users of the ATM. It is terrible to think thatcriminalslike them might one day use a 3-D printer to print a gun.

But for better or for worse, 3-D printing has been put into use. In a few years, you’ll probably be wondering how you could ever live without your 3-D printer!

1._______ invented the first 3-D printer.

A.Charles Hull B.Dirk Vander Kooj

C.A doctor called Cornell D.Four men in the U.S

2.What is the correct order for people to use a 3-D printer?

a. Choose a proper material.

b. Press the print button.

c. The 3-D printer spreads the material.

d. Use a computer to design an object.

A.a-b-c-d B.d-a-b-c

C.a-c-d-b D.d-c-b-a

3.The underlined word “criminals” in the fourth paragraph might mean ______________ in Chinese.

A.技术员 B.军人 C.罪犯 D.用户

4.According to the passage, people have NOT yet produced _________ with a 3-D printer.

A.some furniture B.a man-made ear

C.ATM skimmers D.a gun

5.What does the writer think of the 3-D printer?

A.It is necessary only for our work.

B.It is helpful but dangerous.

C.It is too expensive for most people.

D.It is useless in our daily life.

Answer

1.A

2.B

3.C

4.D

5.B

【解析】

试题这篇短文主要介绍了3D打印技术的发明不仅对于人们是有帮助的而且如果被坏人利用也有可能是危险的。

1.细节理解题。根据The first 3-D printer was invented in 1986 by an American, Charles Hull. 第一台三维打印机是1986年由美国人查尔斯·赫尔发明的。故选A。

2.归纳理解题。根据第二段All the user has to do is to design(设计) an object on the computer and choose a material(材料) to print in. The printers print in hundreds of different materials including glass, sugar and even skin! When the user presses “print”, the 3-D printer spreads the material layer(层) by layer and like magic the object is produced.可知第一设计一个物体，二是选择材料，三是按下打印按钮，四打印机传输材料。故选B。

3.词义猜测题。根据like them指的是像上文中制造提款机盗刷器的人一样的人，故是罪犯，故选C。

4.推理判断题。根据It is terrible to think thatcriminalslike them might one day use a 3-D printer to print a gun.有一天罪犯可能会用3D打印机打印枪，可知还没有打印，故选D。

5.推理判断题。根据But like a lot of new technologies, if 3-D printing gets into the wrong hands, it can be dangerous.可知作者认为3D技术也是危险的，故选B。