If your pen broke at school today,what would you do?You would go to a shop and buy a new one.What if you could simply print out a real,working pen with your 3-D printer without leaving your room?

The 3-D printer has been used to make many different things.People have made cups cars and even an airplane with it.

Doctors have been using 3-D printers for several years.People’s nervous systems have been printed out in 3-D form medical research.Some body parts have been printed and used in hospital.Several months ago,doctors used a 3-D printer to rebuild

Ten years ago people could only see 3-D printing in science fiction movies.But now 3-D printing is here and it’s bringing big changes.

Unlike normal printing that can only copy a 2-D picture with ink.3-D printing can build almost anything made from material.The printer layers(分层) the material in different shapes to create the object you want to be copied.the face of a person who had a bad accident.In the future,it is expected that the printer will make human organs to save more lives.

However there are drawbacks to the printer.At the moment,printing can be quite slow and it’s still rather expensive.The average(平均的) price of a household printer is around $1,700,not including the cost of the materials.

But as the technology develops,it shouldn’t be long before disadvantages are improved.Only time will tell where this new technology will take us.

根据短文内容,从题中所给的A、B、C、D四个选项中,选择最佳答案。

1.People could see 3-D printing in_________ten years ago.

A.large high school B.science fiction movies

C.digital camera shop D.hospital

2.People still can’t make a(n)________with a 3-D printer so far.

A.airplane B.face C.organ D.cars

3.What does the underlined word “drawbacks” mean?

A.不足 B.趋势 C.优点 D.影响

4.Which of the following is TRUE?

A.The normal printer can build 3-D objects you want.

B.No nervous systems are printed out in 3-D form.

C.The 3-D printing can be cheaper and faster in the future.

D.There will be no drawbacks to the 3-D printing in the future.

5.What’s the best title of the passage?

A.The advantages of 3-D printing

B.The disadvantages of 3-D printing

C.The changes brought by 3-D printing

D.The rapid development of science

完型填空

阅读下面短文,然后在各题所给的四个选项中选出一个最佳答案。

Do you have problem in your life and not know how to be happy? If ,you will find Being Happy Teenager written by the Australian writer Andrew Matthews

In his book,Matthews us how to live a happy life and answer the questions from teenagers.

There are subjects such as parents and friends,and the book says we should stop and forgive(宽恕).The tells us useful skills such as how to put what you have learned into pictures of your mind to your memory better.

Many teenagers think happiness comes from a good exam result praise(赞扬)from other people.But you can be happy when there are no such“good”things.

Success comes from a good attitude.If you problems,you will achieve success in the future.

Some school students have such as being too tall or too short.But Matthews tells us that happiness comes from thinking about things a positive way.If you are ,people notice you and you can get a better view at the movie;if you are short,your clothes and shoes take less in your bedroom! This is Matthews’ most important lesson:you choose to be happy!

1.A.so B.not C.do D.such

2.A.careful B.useful C.easily D.excited

3.A.asks B.says C.tells D.talks

4.A.few B.a little C.much D.many

5.A.to be angry B.being angry C.becoming happy D.be sad

6.A.book B.movie C.story D.song

7.A.forget B.change C.make D.have

8.A.that B.what C.which D.if

9.A.yet B.so C.but D.or

10.A.either B.already C.almost D.also

11.A.hear from B.learn from C.come from D.get from

12.A.questions B.chances C.problems D.challenges

13.A.at B.on C.by D.in

14.A.short B.tall C.strong D.weak

15.A.money B.time C.place D.room

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