1. (2021九上·吉安期末) 阅读理解

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.

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

   ①. Choose a proper material.     ②. Press the print button.  

   ③. The 3-D printer spreads the material.      ④. Use a computer to design an object.

   A . ①②③④ B . ④①②③ C . ④①③② D . ①③②④
5. （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
7. （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
9. （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.