Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out As a result，the temperature rises.
Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.
Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat, and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually, people，plants，and animals would all die of hunger．
People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now, more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming, kids call do just as much.By the example given in Paragraph l, the author wants to__________.
| A．explain how global warming happens |
| B．show his feeling in a car in hot summer |
| C．tell us cars are causes of greenhouse gases |
| D．say that I there are greenhouse gases in every car |
The underlined word ‘it” in Paragraph 2 refers to__________.
| A．light | B．greenhouse effect | C．temperature | D．heat |
What is the effect of atmosphere?
| A．IT only traps the heat of the sun. |
| B．It does great harm to humans. |
| C．It makes the earth neither to hot nor too cold. |
| D．It prevents all the light from the sun shining on the earth. |
What is the main idea of the third paragraph?
| A．lf there is greenhouse effect．all the plants will die |
| B．Human beings are likely to disappear from the earth |
| C．Crops can’t take in the heat lf there is greenhouse effect |
| D．Although greenhouse effect is necessary．Too much of it will cause us to die. |
What will the author most probably discuss in the paragraph that follows?
| A．What kids can do to help stop global warming. |
| B．Who should be responsible for the environmental problems. |
| C．What global warming is doing to the environment. |
| D．Why cars and buses pollute the air a lot |
Joanne was stuck in a traffic jam in central Birmingham at 5：30. and at 6：30 she was expected to be chairing a meeting of the tennis club. At last，the traffic was moving. She swung quickly racing to her house. As she opened the door，she nearly tripped over Sheba.
“Hey，Sheba，”she said，“I've got no time for you now，but I'll take you out as soon as I get back from tennis club. ”Then she noticed Sheba seemed to be coughing or choking Obviously，she could hardly breathe. Immediately. Joanne realized she would have to take her to the vet(兽医) . When she got there，the vet was just about to close for the day. Seeing the state of Sheba，Dr. Sterne brought her quickly into his office.
“Listen，doctor，I'm really in a rush to get to a meeting, can I leave her with you，and go and get changed? I'll be back in ten minutes
to pick her up，and then I'll take her on to the meeting with me, Is that OK?”
“Sure. ”said the doctor
Joanne made the quick trip back to her house in a couple of minutes. As she was once more entering the hallway，the phone by the door began to ring.
“This is Dr. Sterne，”said an anxious voice. “I want you to get
out of that house immediately，”said the doctor's voice. “I'm coming round right away，and the police will be there any time now. Wait outside!”
At that moment，a police car screeched to a stop outside the house. Two policemen got out and ran into the house. Joanne was by now completely confused and very frightened. Then the doctor arrived.
“Where’s Sheba? Is she OK
?” shouted Joanne.
“She’s fine，Joanne. I took out the thing which was choking her，and she’s OK now. ”
Just then，the two policemen reappeared from the house，half-carrying a white—faced man，who could hardly walk. There was blood all over him.
“My God，”said Joanne，“how did he get in there? And how did you know he was there?”
“I think he must be a burglar. ”said the doctor. “I knew he was there because when I finally removed what was stuck in Sheba’s throat：it turned out to be three human f
ingers”What was Joanne supposed to do at 6：30？
| A．To walk her dog. |
| B．To see her doctor. |
| C．To attend a club meeting. |
| D．To play tennis with her friends. |
Joanne wanted to get back to her home again.
| A．to dress up for the meeting |
| B．to phone the police station |
| C．to catch the badly hurt burglar |
| D．to wait for her dog to be cured |
From the passage，we can infer that.
| A．Sheba fought against the burglar |
| B．the police found the burglar had broken in |
| C．Joanne had planned to take her dog to the meeting |
| D．the doctor performed a difficult operation on the dog |
In this passage，the writer intends to tell us that the dog is.
| A．clever | B．friendly | C．frightening | D．devoted |
I am a good mother to three children. I have tried never to let my profession stand in the way of being a good parent.
I no longer consider myself the center of the universe. I show up. I listen. I try to laugh. I am a good friend to my husband. I have tried to make marriage vows(誓约) mean what they say. I am a good friend to my friends, and they to me. Without them, there would be nothing to say to you today.
So here's what I wanted to tell you today: Get a life. A real life, not a desire of the next promotion(提升), the bigger paycheck, the larger house.
Get a life in which you are not alone. Find people you love, and who love you. And remember that love is not leisure(空闲), it is work. Pick up the phone. Send an e-mail. Write a letter. And realize that life is the best thing and that you have no business taking it for granted.
It is so easy to waste our lives, our days, our hours, our minutes. It is so easy to exist instead of to live. I learned to live many years ago. Something really, really bad happened to me, something that changed my life in ways that, if I had my choice, it would never have been changed at all. And what I learned from it is what, today, seems to be the hardest lesson of all.
I learned to love the journey, not the destination. I learned to look at all the good in the world and try to give some of it back because I believed in it, completely and totally. And I tried to do that, in part, by telling others what I had learned. By telling them this: Read in the backyard with the sun on your face. Learn to be happy. And think of life as a deadly illness, because if you do, you will live it with joy and passion(热情) as it ought to be lived.The best title of this passage probably is
| A．Love your friends | B．Live a real life |
| C．Don't waste time | D．Be a good mother and wife |
The underlined sentence "It is so easy to exist instead of to live" in the fifth paragraph probably has the same meaning as
| A．it is so easy to keep alive but not to live a real life |
| B．it is very hard to live a real life |
| C．it is so easy to make a living |
| D．it is more difficult to exist than to live a happy life |
What's the author's attitude toward
work?
| A．Do it well to serve others. |
| B．To earn enough money to make life better. |
| C．Try your best to get higher position and pay. |
| D．Don't let it affect your real life. |
It can be inferred from the passage that
| A．the author is a success in personal life |
| B．the author didn't try her best to work well |
| C．the author spent all her time caring for her children |
| D．the author likes traveling very much |
.
For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships travelling through space, on the chance that someone may be receptive to such message.
Scientists are using powerful radio telescopes to listen to signals from about 1,000 stars, all within 100 light years of Earth. In addition, they will scan the entire sky to "listen" for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.
Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like Earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution (进化) of life. Based on the inhabitable (可居住的) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.
However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.
Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time, some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.
57. According to the passage, how many planets in our galaxy might be inhabitable?
A. 5 billion B. 10 billion C. 15 billion D. 200 billion
58. The first paragraph in this passage is mainly about __________.
A. how scientists are looking for signs of life on other planets
B. why scientists are looking for signs of life on other planets
C. where scientists are looking for signs of life on other planets
D. When scientists are looking for signs of life on other planets
59. The underlined word “monitor” in Paragraph two means “__________”.
A. find B. follow C. check D. form
60. Which of the following is TRUE based on the information in the passage?
A. The earth is the oldest planet in our galaxy.
B. All scientists believe that there is intelligent life on other planets.
C. Scientists are trying different ways to find signs of life on other planets.
D. Scientists will give up the search for signs of life on other planets.
.
How the iron of tomorrow (the first Self Cleaning Iron) can change your lifestyle today?
General Electric introduces the iron of tomorrow. The iron can clean itself every time you empty it. How? With a push of a magic blue button.
The magic blue button
The first thing you’ll notice that’s different about this iron is the blue button on the side. It’s marked “Self Clean”. Push this blue button, and you can wash out loose mineral deposits(沉淀物) that remain and block up inside. Push this button, and you’ve made life a lot easier.
Less chance of brown spots
Sure, the Self Cleaning Iron is going to cut down on brown spots (those ugly spots that happen on nice, cleanly pressed clothes) because a Self Cleaning Iron becomes clean quickly each time you press that magic blue button.
Steam better longer
Common sense tells you that if you’ve got an iron that blocks less often it has to stay younger for a long, period of time. In other words, it steams better longer. That’s another joy of owning General Electric’s Self Cleaning Iron.
What does it mean to you
Today you are doing so much more than just running a house and running after the kids. You’re working. You’re going to school. It’s all part of your lifestyle. The iron can change that lifestyle by giving you less trouble before you iron. If we can make it easier for you to be a better wife, a better mother, a better homemaker, we want to. The new Self Cleaning Iron is another one of Home-Makers from General Electric. ^*
53. This passage is mainly about __________.
A. an introduction to the General Electric
B. an operating instruction of the Self Cleaning Iron
C. an advertisement of the Self Cleaning Iron
D. a description of the change of lifestyle
54. This iron can clean itself by __________.
A. emptying itself B. washing out mineral deposits
C. blocking up mineral deposits D. giving off more steam
55. According to the passage, what is most likely to attract the customers?
A. It is made by General Electric.
B. The iron will not produce mineral deposits.
C. Their clothes will be cleaned at the same time.
D. There will be fewer brown spots on pressed clothes.
56. The Self Cleaning Iron can help change your lifestyle because __________.
A. you can run your house better B. you don’t have to run after the kids
C. you can use it while you are working D. we want you to be a better house maker
.
When Joe Bates was twelve years old, he lost interest in school. He stopped listening in his classes. Some of his teachers began to consider him a problem.
But a few of Joe’s teachers thought that Joe might have lost interest in schoolwork because he already understood it. They proposed that Joe try taking a university class in computer science. Joe did. He was the best student in the class. Later tests showed that his intelligence and knowledge were far greater than most children of his age. He entered university when he was thirteen, about four years earlier than most children. And by the time he was in his early twenties, Joe was teaching computer science at a university.
Joe’s story shows what can happen when a child’s unusual ability is recognized. Sadly, however, not all gifted children get this recognition. And educational experts say unusually gifted children may waste their abilities if they do not get help to develop them.
Studies show that almost twenty percent of students who fail to complete high school in the United States are gifted children.This is because gifted children can have special problems as well as special abilities. Teachers may not recognize their abilities or may not know how to keep them interested. Or they may consider such students to be troublemakers or rebels.
Gifted children may feel lonely or different because they do not know other children who share their interests.
Educators say there are more than two million gifted children in the United States today. But they say fewer than half are taking part in special education programs designed for them.
One of the most successful programs is held every summer at John Hopkins University in the state of Maryland, where Joe Bates went to school. It started in 1980 when educators saw that there must be many children like Joe.
At first, only 100 children took part in it, and now more than 1,000 children between the ages of nine and sixteen are students in the summer program.
The John Hopkins program provides studies in math and science. It also has classes for children with unusual ability in language and writing. The children study the same subject every day for several weeks. It could be biology, or history, or literature. In those few weeks, they learn as much as in a normal nine-month school year.
William Durden, the director says the program succeeds because it permits children to make progress more quickly than in a traditional program. And the children get to meet others like themselves.
49. Joe Bates stopped listening in his classes because __________.
A. he lost interest in school
B. he hated those teachers who considered him a problem
C. he had already understood what he was taught
D. he wanted to take a university class
50. When a child’s unusual ability is recognized, __________.
A. he can do whatever he likes
B. he will no longer be considered to be a troublemaker or rebel
C. he may have more success than most children of his age
D. he will certainly take part in a special education program
51. According to the passage, the most important thing is to __________.
A. recognize and develop gifted children’s unusual abilities
B. design and support special education programs for gifted children
C. help gifted children get to meet others who share their interests
D. encourage gifted children instead of treating them as a problem
52. Many gifted students fail to complete high school in the United States because _________.
A. they take part in traditional education programs
B. their unusual abilities are not recognized
C. their teachers don’t know how to keep them interested in schoolwork
D. they have special problems as well as special abilities.