阅读理解。     When you cut your skin, you bleed (流血). If a person loses a lot of blo

阅读理解。     When you cut your skin, you bleed (流血). If a person loses a lot of blo

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阅读理解。     When you cut your skin, you bleed (流血). If a person loses a lot of blood (血液), 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 unhealthy people
B. have lost a lot of blood
C. are not given the right kind of blood
D. are AB-group people 2. Which of the following is true? [     ]
A. Doctors can give any kind of blood to the writer.
B. The writer can give blood to B-group people.
C. The writer has never had a blood transfusion
D. The writer has the same kind of blood as his father. 3. People set up (建立) 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 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. many people died because they lost a lot of blood
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
答案
1~5 CBAAC
举一反三
阅读下面一篇材料,从所给的A-G七个选项中,选出正确的选项填空,使短文通顺、内容完整。     It"s very common for students" marks to fall. 1.             Sometimes it is only because the exams get
harder. 2.             He or she will be able to help you with the subjects you find difficult. Stop comparing
yourself with other people. It does not matter if other students get higher marks than you. 3.             Before
each exam, you should go through you notes from class. You should remember the most important things
you have written in a shorten form. 
     4.             You will be surprised when you find you remember so much. It may take hard work and your
marks may not improve straight. 5.             Soon they should begin to climb again.
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A. it is just because you never work hard.
B. Look through your shorter notes again just before the exam.
C. But let your confidence rise by every mark.
D. When your marks start to fall, you should try talking to a friendly teacher.
E. But my parents won"t be angry with me.
F. Sometimes it is because of situation outside school, such as problems at home.
G. What is important is that you do your best.
阅读理解。
    New rules and behavior standards (行为规范) for middle school students came out in March. Middle
school is going to use a new way to decide who the top students are. The best students won"t only have
high marks. They will also be kids who don"t dye (染) their hair,smoke or drink. The following are some
of the new rules.
    Tell the truth. Have you ever copied someone else"s work on an exam? Don"t do it again! That"s not
something an honest student should do. If you have played computer games for two hours in your room,
don"t tell your parents you have done homework.
     Do more at school. Good students love animals and care for other people. April is Bird-Loving Month
in our country. Is your school doing anything to celebrate?You should join! That way, you can learn more
about animals and how to protect them. When more people work together, it makes it more fun for
everyone. Have you ever quarreled with your teammates when your basketball team lost? Only working
together can make your team stronger. Be friendly to the people you are with. Try to think of others, not
only yourself.
     Be open to new ideas. Have you ever thought that people could live on the moon? Perhaps you"ll discover
Earth II someday. Don"t look down on new ideas. Everyone"s ideas are important. You should welcome
them, because new ideas make life better for everyone. Protect yourself. Has someone ever taken money
from one of your classmates? Don"t let it happen to you. If you have to go home late,you should let your
parents know. Use the Internet carefully. The Internet can be very useful for your studies. But some things
on the Internet aren"t for kids, so try to look at Web pages that are good for you. You can use the Web for
fun or homework. Can"t you find any good Web sites for children? Here are some:
      http://kids.eastday.com/     http://www.chinakids.net.com/   http://www.cycnet.com
1. The school new rules will help kids by telling them ___.
[     ]
A. how they can study well
B. how to learn English
C. what is right and what is wrong
D. how they can protect themselves
2. According to the passage,which of the following is NOT true?
[     ]
A. Take care of yourself when you are out.
B. Tell the truth, even when you are wrong.
C. Keep some animals to protect them.
D. Use the Internet, but keep away from bad things.
3. The main idea of the third paragraph is about ___.
[     ]
A. making the team stronger
B. working together with others
C. being a good friend to others
D. getting on well with others
4. Good Web sites for children can ___.
[     ]
A. be a waste of time
B. help them with their studies
C. do homework for them
D. make life easier
5. The passage tells us how to ___.
[     ]
A. be top students
B. do more at school
C. care for others
D. use the Internet
阅读理解。
     Many years ago when people had no thermometers (温度计), they usually touched a thing to see how
hot or cold it wasThe following experiment shows how easy it was to make a mistake. 
     Take three glasses: the first one with very hot water. The second one with very cold water, and the third
one with water at room temperature. Then you put a finger of one hand in the hot water, and a finger of the
other hand in the cold water. You hold your fingers in the two glasses for a minute. Then you use each finger,
one after another, to see how hot or cold the water in the third glass is. You will find that the water is warm to
the finger that was in the cold water before, but the finger which was in the hot water will feel cold in the
same glass of water. 
     That is why you must always find the temperature in a scientific way. You must not try to tell the
temperature as it seems to you.
     You will often make a mistake if you take something that seems to you for a real fact. For example, when
you are going to an Amusement park by bus and you want to get there very quickly, it seems to you that your
bus is going very slowly, slower than the other buses. But if it is Sunday and you have much free time, it
seems to you all the buses and cars are going very fast.
1. The experiment tells us that sometimes it is ______ to make a mistake.
[     ]
A. interesting
B. difficult
C. easy
D. helpful
2. The water in the third glass is ______.
[     ]
A. colder than the water in the first glass
B. hotter than the water in the first glass
C. colder than the water in the second glass
D. as cold as the water in the second glass
3. What will you find if you put the finger which was in the first glass into the second glass according to
    the experiment?
[     ]
A. The water is hotter than it is in the first glass.
B. The water is as hot as it is in the first glass.
C. The water is at room temperature.
D. The water is colder than it is in the first glass.
4. How should we find the temperature according to the passage?
[     ]
A. Try to tell as it seems to us.
B. Try to use our fingers.
C. Try to tell in a scientific way.
D. Try to touch something to see how hot it is.
5. We can learn something about ______ from the passage.
[     ]
A. physics
B. chemistry
C. psychology (心理学)
D. biology
根据下列短文内容,在短文后的空格处填上一个恰当的词,使短文完整、通顺。
    Rice is a big part of Chinese life. In the past, people greeted each other by 1.            "Have you had your
rice?" And some people 2.            say it today.
    China is the world"s largest rice-growing 3.           . In 2003, China grew 166 million tons of rice. But it
is not 4.            to feed the world"s largest population. In the 1960s, thousands of Chinese 5.            because
they had no food to eat.
    In the 1970s, a Chinese scientist, Yuan Longping, grew a new 6.            of rice called hybrid rice (杂交稻).
It makes 20 percent more rice than 7.            types of rice. Hybrid rice is much stronger than common rice.
It can grow in lots of water or in not much water. It also doesn"t easily get diseases or worms.
    Yuan is known 8.            the "father of hybrid rice." At the end of last month, he 9.            the World
Food Prize for his work to help feed so many people.
    Today, half of China"s rice plants are Yuan"s special hybrid. China uses Yuan"s hybrid to grow much 
10.            rice than before.
阅读理解。
    If you do not use your arms or your legs for some time, they become weak. When you start using them
again, they slowly become strong again. Everybody knows that. Yet many people do not seem to know that
memory works in the same way.
    When someone says that he has a good memory, he really means that he keeps his memory in practice by
using it. When someone else says that his memory is poor, he really means that he does not give it enough
chance to become strong.
    If a friend says that his arms and legs are weak, we know that it is his own fault (过错). But if he tells us
that he has a poor memory, many of us think that his parents are to be blamed (责备), and few of us know
that it is just his own fault.
    Have you ever found that some people can"t read or write but usually they have better memories? This is
because they cannot read or write and they have to remember things; they cannot write them down in a little
notebook. They have to remember days, names, songs and stories; so their memory is the whole time being
exercised. So if you want to have a good memory, learn from the people: practice remembering.
1. Which of the following is right?
[     ]
A. Your arms or your legs will become weak when you use them.
B. Your memory works in the same way as your arms and legs.
C. Everybody knows that memory works in the same way as their arms and legs.
D. Your memory can"t become strong again when you use them again.
2. If you want to have a good memory, you must ______.
[     ]
A. practice it
B. not give it enough chance to become strong
C. have clever parents
D. use your arms and legs often
3. One has a bad memory because of ______.
[     ]
A. his own fault
B. his parents" fault
C. his teachers" fault
D. his strong arms and legs
4. Many people who can"t read and write can remember things well because ______.
[     ]
A. they have to remember
B. they can"t write them down
C. they practice remembering
D. they can remember things quickly
5. The writer tells us ______.
[     ]
A. a good memory comes from practice
B. a good memory needs strong arms and legs
C. parents can make us clever
D. to remember days, names and songs