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 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. 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 Hull B. Dirk Vander Kooj C. A doctor called Cornell D. Four men in the US

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

a.Choose a 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 “ gets into the wrong hands ” in the fourth paragraph might mean in English.

A. the hands caught by the printer B. to get into trouble

C. the hands used in a wrong place D. to do something illegally

4.What 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.

Writing a Short Story

Stephen King said, “If you don’t have time to read, you don’t have time to write.” That means, if you’ve never read a short story, it will be difficult to write one. Writing a short story is a popular hobby for a lot of people. 1.Writing a good story is not easy, but it is certainly worth doing it. How to write a short story? Here are some steps you should take to write a good story.

Step 1

Every story starts with an idea. Start by thinking about the things that you enjoy. 2.Other ideas can come from thinking about subjects that you’d like to know more about.

Step 2

Once you have an idea, you can then decide who your main characters are going to be. Consider having both a hero and villain (恶棍) in your story. This will help to keep your readers interested.

Step 3

3.Most writers plan their stories by creating an outline. It should describe the main events that happen. This will help anyone who reads the story to follow its events.

Step 4

Now that you have your outline, it is time to start writing. Follow your outline and write your short story. At this point, your story does not have to be perfect.4.Then you can make some more detail information, this will help you understand what your story is about.

Step 5

The story you have written is your first draft(草稿), the next step is to read though it and revise (修改). After your self-revision, it’s time to get some advice about your story.5.Finally,you should now have a well-written story.

A.You will go back and improve it later.

B.Before you start, you need to plan your story.

C.It is also an excellent way to express creative idea.

D.These activities are very good subjects to base your stories on.

E.Have others read your story so they can make suggestions for you to improve your story.

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