江苏省徐州市睢宁县新世纪中学2016届九年级下学(3)

A. calm. B. excited. C. surprised. D. regret.

40．What can we learn from this passage?

A. Never give money to panhandlers. B. We d better plant a row for the hunger. C. Only charities should help the hunger. D. Always give money to panhandlers.

C

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 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(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. 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!

41. invented the first 3-D printer.

A. Charles Hull B. Dirk Vander Kooj

C.A doctor called Cornell D. Four men in the US

42. 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

43. The underlined word “ ” in the fourth paragraph might mean in English.

A. the hands caught by the printer B. to do something illegally

C. the hands used in a wrong place D. to get into trouble

44. 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

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

A. It is necessary only for our work.

C. It is too expensive for most people. B. It is helpful but dangerous. D. It is useless in our daily life.