C
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 shop
People still can’t make a(n)________with a 3-D printer so far
A. airplane B. face C. organ
What 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 future
What’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
配对阅读
E. Uncle Tom’s big house ---- Nice big house with four bedrooms, a living room, a kitchen, a bathroom and a dinning hall with a big garden. |
Many people like to travel(旅游）by plane, because it is fast. But I don' t like it because an airport(机场)is usually far from the city. You have to get there early and wait for hours for the plane to take off and it is often late. You can’t open the windows. You can’t choose the food. Planes are fast, but they still take hours to go out of the airport and into the city.
I like traveling by train. I think trains are safe. Railway stations are usually in cities. When you are late for a train, you can catch another one. You can walk around in the train and open the windows. You can see many interesting things on your way. I know it takes a little more time.
I also like cars. You can start your journey(旅程)when you want to, and you don’t need to get to a railway station or a bus stop. Also you can carry(携带)many things with you in a car. But sometimes there are too many cars on the road.Why do many people like to travel by plane?
| A．Because it is safe |
| B．Because it is fast. |
| C．Because you can walk around in the plane |
| D．Because it is cheap. |
Which is NOT the good thing about the train?
| A．It is safe. |
| B．It takes a little more time |
| C．You can open the windows. |
| D．You can walk around in the train. |
If you want to take a lot of things with you , what do you take to go out?
| A．A bus. | B．A car. | C．A train. | D．A bike. |
What is the bad thing about the car?
| A．You needn’t go to a station. |
| B．You can start your journey when you want to. |
| C．There are too many cars on the road. |
| D．You needn’t go to a bus stop. |
What does the writer think of the plane，train and car?
| A．He thinks it takes a lot of time to go to and get out of the airport. |
| B．He likes to take a train because it takes a little more time |
| C．He likes to take a car because he has a car. |
| D．He likes to take a plane because it’s fast. |
| DRIVER WANTED: Can you work with cars? Do you have a driving license(驾驶证)? We need you to drive the car for us. Call Miss Li at 534-7621. |
NURSE WANTED: Can you help doctors? Can you work in a hospital? Then come and work for us as a nurse. Please call Mr. Wang at 734-2323. |
| TEACHER WANTED: Do you like kids? Can you play football? Can you swim? Do you want to be a PE teacher? Please call Linda at 653-1298. |
COOK WANTED: Can you make delicious food? Can you work hard? Can you work late? Then come and work for us as a cook. Call Alan’s Dinner at 782-3422. |
There are ________ jobs wanted.
| A．3 | B．4 | C．5 | D．6 |
If you want to work as a ________, you can call 534-7621.
| A．reporter | B．policeman |
| C．driver | D．writer |
If you call 734-2323, you can get a job as a __________.
| A．bank clerk | B．policeman | C．nurse | D．teacher |
Ben likes making different(不同的) food, he wants to find a job about cooking , he can call ________.
| A．653-1298 | B．782-3422 |
| C．534-7621 | D．734-2323 |
Who can you call if you want to work in a school?
| A．Alan | B．Mr. Wang | C．Linda | D．Miss Li |
请仔细阅读1--5题中关于Mary, Stella, Oliver, Amelia和Felix的兴趣爱好，从A-F中选出分别适合他们的电影。（每部电影只能被选一次。备选项中有一项是多余的。）
| A. Rangers The story happens in Mexico in the year 3000. It has an exciting storyline and even better special effects (效果). Movie of the month—don’t miss it! ●●●●● |
| B. Yesterday Wonderful movie set in Venice, by the famous director John Woodall. A young couple are in love and want to get married. The problem is, their parents aren’t happy… Great music and beautiful photography. ●●●●○ |
| C. High School Days Three teenage boys meet at Stafford high School. They decide to start a band together and that’s when the fun really starts… Funny, with an interesting story. ●●●○○ |
| D. Freddy A boy discovers he has magic powers, but what happens when he visits his grandparents? Fun for all the family. ●●●○○ |
| E. Busters Jacky Chan stars in this movie. Lots of guns and lots of car chases. If you want excitement, watch this! Don’t watch it if you hate to see blood (血) . ●●●○○ |
| F. Oregon Adventure Set in the early 19th century, this is a story about a long journey west across the United States and the problems the pioneer (拓荒者) had on the way. Both funny and sad. If you like westerns, this is the film for you. ●●●○○ |
| ●●●●● Don’t miss it!●●●●○ Very good ●●●○○ Good●●○○○ OK●○○○○ Stay at home! |
There is an old saying in English, “Laughter is the best medicine”. Until recently, few people took the saying very seriously. Now however, doctors have begun to study laughter and the effects (作用) it has on the human body. They have found evidence that laughter really can improve people’s health.
Tests were carried out to study the effects of laughter on the body. People watched funny films while doctors checked their heart rate, blood pressure, breathing and muscles. It was found that laughter has similar effects to physical exercise. It increases blood pressure, the heart rate and the rate of breathing. It also works several groups of muscles in the face, the stomach and even the feet. If laughter exercises the body, it must be helpful.
Other tests have shown that laughter appears to make the effect of pain on the body less. In one experiment doctors produced pain in groups of students who listened to different radio programs. The group which could bear the pain for the longest time was the group which listened to a funny program. The reason why laughter can make pain less seems to be that it helps to produce endorphins (内啡肽) in the brain. These are natural chemicals which make both stress and pain less.
There is also some evidence to suggest that laughter helps the body’s immune system that is the system which fights infection (感染). In an experiment, one group of students watched a funny video while another group served as the control group — in other words, a group with which to compare the first group. Doctors checked the blood of the students in both groups and found that the people in the group that watched the video had an increase in the activity of their white blood cells that is the cells which fight infection.
As a result of these discoveries, some doctors and psychiatrists (精神病学) in the United States now hold laughter clinics, in which they try to improve their patients’ condition by encouraging them to laugh. They have found that even if their patients do not really feel like laughing, making them smile is enough to produce good effects similar to those caused by laughter.We learn from the first paragraph that laughter __________ .
| A．is good for one’s health |
| B．has something to do with some illness |
| C．has been studied long since |
| D．has no effect on the body |
Doctors have found that laughter ___________ .
| A．keeps down blood pressure |
| B．has similar effects to physical exercise |
| C．decreases the heart rate |
| D．increases stress |
Which of the following statements is NOT true of laughter according to the passage?
| A．It makes pain less. |
| B．It exercises the body. |
| C．It improves the body’s immune system. |
| D．It can cure cancer. |
Smiling can produce _________.
| A．about the same effects as laughter |
| B．more effects than laughter |
| C．fewer effects on the human body |
| D．no effects on the human body |
In a laughter clinic doctors __________ .
| A．laugh at their patients |
| B．encourage their patients to laugh |
| C．smile when they don’t feel like laughing |
| D．never stop laughing |
The main idea of this passage is that _________.
| A．the doctors should learn how to make people laugh |
| B．there are several ways of studying the advantages of laughter |
| C．tests show that laughter can produce positive effects on human body |
| D．laughter and physical exercise have the same effects on human body |