题目内容

【题目】 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 (打印机)!

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 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 () 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 (家具) made from old fridges. And doctors have used 3-D printing to print human body parts! A newspaper 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 printinggets 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 that criminals like 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 HullB.Dirk Vander Kooj

C.A doctor called CornellD.Four men in the US

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

a. Choose a material. b. The 3-D printer spreads the material. c. Press the print button.

d. Use a computer to design an object.

A.a-b-c-dB.d-a-b-cC.a-c-d-bD.d-a-c-b

3The underlined word “gets into the wrong hands” in the fourth paragraph might mean__________ in English.

A.the hands caught by the printerB.to get into trouble

C.the hands used in a wrong placeD.to do something bad

4What does the writer think of the 3-D printer?

A.It is necessary only for our work.B.It is too expensive for most people.

C.It is helpful but dangerous.D.It is useless in our daily life.

【答案】

1A

2D

3D

4C

【解析】

本文介绍了3D打印技术,利用3D打印机,你可以打印任何想要的东西。第一个3D打印机于1986年被一位美国人发明。2011年,有人利用3D打印技术打印了提款机盗刷器。未来,你可能无法想象没有3D打印的日子。

1细节理解题。题意:谁发明了第一台3D打印机?根据The first 3-D printer was invented in 1986 by an American, Charles Hull.故选A

2文章顺序题。a. Choose a material.选择一种材料;b. The 3-D printer spreads the material.3D打印机延展材料;c. Press the print button.按下打印按钮;d. Use a computer to design an object.使用电脑设计一个物件。根据All the user has to do is to design (设计) an object on the computer and choose a material 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,可知,先设计,然后选择材料,按下按钮,打印机工作,故顺序为d-a-c-b,故选D

3词义猜测题。题意:下划线“gets into the wrong hands”在英文中是什么意思?A. the hands caught by the printer手被打印机卡住了;B. to get into trouble陷入困境;C. the hands used in a wrong place手用错地方了;D. to do something bad做坏事。根据These were placed on an ATM and stole over $400,000 from users of the ATM.可知,有人利用3D打印技术,做坏事,故选D

4观点态度题。题意:作者认为3D打印机怎么样?A. It is necessary only for our work. 这只对我们的工作是必要的;B. It is too expensive for most people. 对大多数人来说太贵了;C. It is helpful but dangerous. 这是有益的,但也是危险的;D. It is useless in our daily life.它在我们的日常生活中是无用的。根据But for better or for worse, 3-D printing has been put into use.故选C

练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网