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When you cut your skin, you bleed(流血). If a person loses a lot of blood, he will become ill and may die. Blood is very important. People have always known that. At one time, some people even drank blood to make them strong!

When doctors understand how blood goes around inside the body, they try ways of giving blood to people who need it. They take blood from the healthy people and give it to people who need it. This is called " blood transfusion（输血）". The blood goes from the arm of the healthy person into the arm of the sick person.

But there are two problems. First, it does not always work. Sometimes people die when they have blood transfusion. Later, doctors find that we do not all have the same kind of blood. There are four groups—O, A, B and AB. We all have blood of one of these groups. They also find that they can give any kind of blood to people of group AB. But they find that they must give A-group blood to A-group people and B-group blood to B-group people. I have O-group blood and the doctor told me that I could give blood to anyone else safely.

There is another problem. To give blood of the right kind, doctors have to find a person of the right blood group. Often they can not find a person in time. If they have a way to keep the blood until someone needs it, they can always have the right kind of blood. At first they find they can keep it in bottles for fifteen to twenty days. They do this by making it very cold. Then they find how to keep it longer. In the end they find a way of keeping blood for a very long time.

We call a place where we keep money a "bank". We call a place where we keep blood a "blood bank". One day, when you grow up, you may decide to give blood to a "blood bank". In this way you may stop someone from dying. Or perhaps one day you may become ill. You may need blood. The "blood bank" will give it to you.

1.From the passage, we learn that sometimes people die when they have blood transfusions because they __________ .

A. are given the cold blood???????????? B. lose too much blood

C. are given the wrong kind of blood????? D. are O-group people

2.Which of the following is true? ________

A. We can drink blood to make us strong.

B. Blood transfusion is always safe.

C. The writer has O-group blood and can give blood to anyone.

D. The blood can only be kept for 15to 20 days.

3.People set up the "blood bank" so that they can _____________ .

A. give the right kind of blood to the people who need it in time

B. keep different groups of blood as much as possible

C. make it easier to sell or buy blood

D. keep blood for more than twenty hundred years

4.From the last paragraph (段落) of the passage, we learn that _____________ .

A. the writer thinks it's good to give blood to a "blood bank"

B. we may become ill if we give blood to a "blood bank"

C. there are many blood banks in the world today.

D. blood is more important than money

5.The writer doesn't talk about ____________ in the passage.

A. how important blood is to us ????????????? ????????????? ????????????? B. the four groups of blood

C. where the blood bank is ????????????? ????????????? ????????????? ????????????? D. what "blood transfusion" is

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阅读理解

　　Is the world warming up? According to many reports the answer is yes．Eleven of the hottest years since 1850 appeared between 1995 and 2006．Last year, the United Nation’s Intergovernmental Panel on Climate Change(IPCC)reported the earth was about 0.75℃warmer than it was in 1850．While this doesn’t sound like a lot, a small difference in average(平均)temperature can make a big difference in climate(气候)．During the last ice age, the planet was only about five degrees colder than now．

　　It’s all about the speed at which temperatures are changing．In the past, temperatures moved up or down step by step．But in the 20^th century, especially since 1976, temperatures have likely risen more quickly than during any century in the last 1,000 years．Warming may bring improved harvests(收获)to northern countries such as Canada and Russia．However, many species(物种)won’t like these conditions．They begin moving towards cooler places and cause lots of trouble to human world．

　　The IPCC reported that human activity is very likely responsible(负责任的), by increasing the greenhouse effect(效应)．Some gases cause the air to take in heat energy．Without the greenhouse effect, the earth’s average temperature would be -18℃ rather than the present comfortable 14.6 degrees．The main greenhouse gases are carbon dioxide(CO₂), water vapor(蒸汽)and some other gases．Burning oil, coal and waste adds to the Carbon dioxide, and it has increased 35％since 1850．

　　Many researchers have found that natural forces alone don’t explain the temperature increases over the last 30 to 40 years．Their study shows that as carbon dioxide goes up, temperatures will rise too．But some scientists don’t agree．They think the effect of human produced greenhouse gases is very small compared to the normal changes that the climate causes．

　　When asked whether humans are causing the world warming, Carl Wunsch, a professor at the Massachusetts Institute of Technology says,“It seems very likely from what I’ve seen．Is it 100％sure?No．There’s something to do with natural changes．”Does that mean we should have a“wait and see”attitude(态度)?Not according to Wunsch．He points out we buy house insurance(保险)not because we are sure our homes will be on fire, but because it’s a danger we’d rather avoid．

(1)

The writer’s purpose here is ________．
[　　]
A．	to introduce a scientific study
B．	to report a serious problem
C．	to teach an important subject
D．	to describe an unusual fact

(2)

What’s the earth’s average temperature in 1850?
[　　]
A．	0.75℃．
B．	-18℃．
C．	14.6℃．
D．	13.85℃．

(3)

Which of the following is responsible for the earth’s warming up?
[　　]
A．	Human activities rather than natural changes．
B．	Natural changes rather than human activities．
C．	Both human activities and natural changes．
D．	Neither natural changes nor human activities．

(4)

What’s the best thing we should do next?
[　　]
A．	Wait for new scientific findings．
B．	Work hard on further study．
C．	Leave things as they normally are．
D．	Take more action and talk less．

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左栏是5名中学生在学习或生活中遇到的难题，右栏是7个解决问题的建议。请为每一个学生选择最佳的解决办法。并将答案的字母编号填写在括号内。

( )1. My friend Jenny always takes a walkman with her and listen to loud music. I think it may hurt her ears. But she doesn’t seem to care.

( )2. Sam saw some bird eggs under a tree when we had a trip in the forest. He wanted to take them home. I stopped him. He’s angry with me.

( )3. Jack let me play with his favorite toy car. I make it go too fast and it crashed.

( )4. All my friends have many new clothes. They wear clothes in different style every day. But my pa-

rents can’t afford it. I think it’s a

shame.

( )5. My close friend always wants me to give him the answers in exams. I do that. But I’m afraid I might be caught. If I don’t do that, he might not be my friend any more.

A. Try to talk to him, tell him it’s wrong for you two to do that. Then try to help him with his lessons in your spare time. If he can’t accept it, let it be. Maybe he’s not such a good friend.

B. You shouldn’t regret. The beauty of one’s looking or appearance doesn’t stand for everything. You are young and still depend on your parents. The most important thing is to study hard and you are sure to have a good future.

C. Let her know being grown up isn’t so bad. We can have our own idea; do everything in our own ways.

D. I used to have the same problem. You can try my ideas, they really work. First, talk about the things you like best and can do best. Then try to make friends you’re your neighbors.

E. You can get some examples from newspapers, magazines or TV shows, let her know it’s really bad.

F. Tell him that he has done something good to animals. If he takes the egg shame, how will their mother feel when she can’t find them? On the other hand, what kind of birds are they?

G. Say sorry to him first. And try to repair it. Or you may give him your favorite toy car instead. Or buy a new one for him.

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阅读理解: 阅读下面短文, 根据短文内容, 选择最佳选项.　　The idea of summer time(夏令时)started with an American named Benjamin Franklin (1706～1790). He explained how a lot of the money spent on candles(蜡烛)used for light (this was before electricity) could be saved if everyone woke up earlier and went to bed earlier. Even though Franklin's idea had a clear meaning, most people didn't want to get up earlier than they had to. Who would It was not until 1907 that an Englishman named William Willet came up with a way to make the sun set(落下)late. His idea was to turn clocks forward by 20 minutes on each of the four Sundays in April, for a total of 80 minutes. William's idea was laughed at, at first. But when World War I started in 1914, many countries decided they had to save energy for the war, and they put Willet's idea into use. Summer time has other uses. The more time you spend outside playing, the less time you are spending in front of the computer or the TV. These things also use energy. However, summer time sometimes causes problems. For example, China used it in 1986, but it was stopped in 1991. That was because the temperatures are quite different from North to South and time from East to West. If the people from northwest part of China use summer time, sometimes they have to get up to work when it is not very bright outside. That will cause some trouble for them. Still, most parts of the world do have summer time, and most people look forward to the extra hour of evening light.

(1)

Franklin gave the idea of summer time in order to ________.

A. save money

B. turn clocks back

C. get up earlier

D. go to bed earlier

[　　]

(2)

When was the idea of summer time put into use

A. In 1907.

B. In 1914.

C. In 1986.

D. In 1991.

[　　]

(3)

If it is 6: 00 now on a Sunday in April, which is Willet's idea time ________.

A. 5: 40

B. 6: 20

C. 6: 40

D. 7: 20

[　　]

(4)

According to the passage, which of the following is RIGHT

A. The idea of summer time started with an Englishman named William Willet.

B. Before 1907, Willet came up with a way to make the sun go down late.

C. By using summer time, people could save energy.

D. The idea of summer time doesn't make any trouble.

[　　]

(5)

Why is summer time not used in China now Because ________.

A. people wouldn't like to get up earlier

B. the temperatures are the same all the year round

C. it is no use to save energy in China

D. the country is large

[　　]

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阅读理解。

     There are many people on the bus. Some have seats, but some have to stand. At a bus stop, a woman gets
on the bus. An old man is near the door and tries (试着) to stand up."Oh, no, thank you," the woman forces
(强迫) him back to the seat."Please don't do that. I can stand.""But, Madam, let me..."says the man."I ask you
to keep your seat." the woman says. She puts her hands on the old man's shoulder (肩膀).
     But the man still tries to stand up."Madam, will you let me...?""Oh, no." says the woman. She again forces
the man back.
     At last (最后) the old man shouts (大声喊),"I want to get off the bus!"

1. Where does the story happen (发生)?

A. On a bus.
B. At a bus stop.
C. On a train.
D. On a plane.

2. Why does the old man want to stand up?

A. He wants to give his seat to the woman.
B. He wants to get off the bus.
C. He wants to be near the door.
D. He has to stand up.

3. Why does the woman put her hands on the man's shoulder?

A. They are good friends.
B. She is too tired.
C. She wants to have a rest.
D. The woman wants to be polite (礼貌的).

4. What do you know about the man and the woman?

A. They work in one office.
B. They study in one school.
C. The woman doesn't know the man.
D. They take the bus every day.

5. Why is the man angry at last?

A. He can't get off the bus.
B. The woman puts her hands on his shoulder.
C. The woman is not polite.
D. He has not any seat.

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