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?
Ten years ago people could only see 3-D printing in science fiction（虚构的） 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（油墨），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 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 （神经系统）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 the face of a person who had a bad accident. In the future, it is expected（期待） that the printer will make human organs（器官） 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, disadvantages will be improved. Only time will tell where this new technology will take us.
People could see 3-D printing in_________ten years ago.
A. large high school
B. science fiction movies
C. digital camera shopPeople still can’t make a(n)________with a 3-D printer so far
A.airplane B.face C.organWhat does the underlined word “drawbacks” mean?
A.不足 B.趋势 C.优点Which of the following is TRUE?
A.The normal printer can build 3-D objects you mant.
B.No nervous systems are printed out in 3-D form.
C.The 3-D printing can be cheaper and faster in the futureWhat’s the best title of the passage?
A.The disadvantages of 3-D printing
B.the changes brought by 3-D printing
C.The rapid development of science
This is Cara and Ben. They are twins(双胞胎). They are twelve. This is their bedroom. It’s a nice room. There are two beds in the room. The yellow bed is Cara’s and that green one is Ben’s. The twins have one desk and two chairs. The chairs look the same. Cara’s sweater is on his bed. Ben’s coat is on his chair. Their clock,
books and pencil-cases are on the desk. Their school bags are behind the chairs.Cara and Ben are ________.
| A．brother and sister | B．brothers |
| C．sisters | D．friends |
Cara and Ben have ________.
| A．two chairs and one desk | B．two desks and one chair |
| C．two chairs and two desks | D．one desk and one chair |
Cara’s ________ is yellow and Ben’s ________ is green.
| A．chair; bed | B．sweater; sweater |
| C．bed; chair | D．bed; bed |
Cara’s sweater is ________.
| A．on his bed | B．on Ben’s bed |
| C．on the chair | D．on the desk |
Which is right?(下面陈述哪一句是正确的？)
| A．Their class is very nice. |
| B．Their two beds look the same. |
| C．Their school bags are under the chairs. |
| D．They live in the same room. |
| Is this your dictionary? Call John at 597-4393. |
Alan Is that your computer game in the lost and found case? Robert |
| Found: Gold ring. Is this your ring? Please call Mary. Phone# 235-0285. |
Lost: My school ID card. My name is Steve. Please call 685-6034. |
______lost his school ID card.
| A．John | B．Robert | C．Mary | D．Steve |
If you lost your dictionary, you will call John at ______.
| A．597-4393 | B．235-0285 | C．685-6034 | D．597-0285 |
You can find a ______in the lost and found case.
| A．dictionary | B．computer game |
| C．gold ring | D．school ID card |
235-0285 is ______ telephone number.
| A．John’s | B．Francisco’s |
| C．Mary’s | D．Steve’s |
“Lost and found” means ______ in Chinese.
| A．失物 | B．拾物 | C．失物招领 | D．拾金不昧 |
This is a photo of Mr Black’s family. The man with glasses（眼镜）is Mr Black, the father. The woman is the mother. They have a son and a daughter. The son is behind（在……后面）Mr Black. His name is Jack. He’s 14. Kate is Jack’s sister. She is 12. Jack and kate are in the same school, but they are in different（不同的）grades. Jack is in Grade Three and Kate’s in Grade One. They are good students.
根据短文内容选择正确答案。Mr and Mrs Black have .
| A．a son and a daughter |
| B．Jack and Kate’s sister |
| C．three children（孩子） |
| D．a family of five |
The woman is mother.
| A．Kate’s | B．Jack’s |
| C．Kate’s and Jack’s | D．Kate and Jack’s |
Jack and Kate are in the same .
| A．class | B．grade | C．school | D．year |
Black is the name.
| A．man’s | B．woman’s |
| C．boy’s | D．family |
Jack and Kate are .
| A．good children | B．good students |
| C．in different schools | D．in the same grade |
You may know the English letters A, B and C. But do you know there are people called ABCs? Do you know there is such a thing as “a banana person”? How strange! ABC means American-born Chinese. An ABC is a Chinese, but was born in the United States. Sometimes, people call an ABC a “banana person”. A banana is yellow outside. So, when a person is a “banana”, he or she is white inside—thinking like a Westerner and yellow outside—looking like a Chinese.
Usually, ABCs know little about China or the Chinese language. Some of them don’t speak Chinese. But if ABCs cannot speak Chinese, can we still call them Chinese people? Yes, of course. They are overseas（海外的）Chinese. These people may be citizens（公民）of another country like the US, Canada or Singapore. But they have Chinese blood. Their parents, grandparents or even great-grandparents were from China. They all have black eyes and black hair.
But they are not Chinese citizens. They are people of the People’s Republic of China. For example, we all know the famous scientist C. N. Yang（杨振宁）. He got the Nobel Prize for Physics in 1957. Chinese people love him. But he is an American citizen.“ABCs” in this passage means_____________.
| A．three English letters | B．a kind of banana |
| C．Chinese born in America | D．Americans born in China |
Chinese in Western countries are called “banana persons” because_____.
| A．their bodies are white inside but yellow outside |
| B．they think like Westerners but look like Chinese |
| C．they were born in China but go to study in America |
| D．they like to eat bananas |
The underlined word “blood” may probably mean ________.
| A．洪水 | B．祖先 | C．身份 | D．血统 |
Which of the sentences is WRONG about ABCs?
| A．They are Chinese citizens. |
| B．They are overseas Chinese. |
| C．They may speak little Chinese. |
| D．ABCs may know little about China. |
This passage mainly talks about________.
A. different kinds of bananas
B. overseas Chinese
C. the Nobel Prize
D. the story of C.N. Yang
With the development of science and technology, our life is becoming more colorful and more convenient.
An Underwater Hotel
It looks like a spaceship but it is actually a picture of an underwater hotel. A company plans to build the hotel in the sea which is about 15 metres below the surface(表面).The whole building is underwater and you can get to it by swimming and diving.
Google Glass
Google Glass is a pair of glasses with a battery(电池) hidden inside the frame(边框). It can perform many of the same tasks as smart phones. The glass has hidden camera and a tiny screen. It is designed to take hands-free photos or videos of anything people are doing.
A New Kind of shirt
Hate washing clothes? You’re going to love this kind of shirt made by an American clothing company, Wool Prince. This shirt can be worn for 100 straight days without washing! The Wool Prince shirt never needs ironing(熨烫).
The Digital(数字) Library
Can you imagine walking into a library and finding all books have turned into companies? The first bookless public library is planned to open in San Antonio, Texas, America. Computers will take the place of books soon.The underwater hotel is about _______meters below the surface.
| A．10 | B．15 | C．100 | D．150 |
You needn’t use ______ when you take photos or video with Google Glass.
| A．camera | B．a screen |
| C．a battery | D．your hand |
You can wear the Wool Prince shirt for about ______ without washing.
| A．a month | B．two months | C．three months | D．a year |
The digital Library tells us something about a library without ______.
| A．books | B．computers | C．bookshelves | D．reader |
Which one of the following can reduce(减少)our housework in daily life?
| A．The underwater hotel | B．Google Glass |
| C．The Wool Prince shirt | D．The Digital Library |