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

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". 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 ban" 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 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．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

Many people like to search the Internet. Exploring the Internet is one of the most important activities of the day. The Internet brings the outside world closer to people’s homes. Some people say the world is smaller than before because of the Internet.

    What’s going on in other countries? How do people live in places far away? Is there a good sports game somewhere? What’s the life like in the deepest part of sea? If you want to answer all these questions, just come to the Internet. Of course, people can also learn through reading or listening to the radio. But with the Internet they can learn better and more easily. A lot of information can be collected at a great speed.

    Can we go shopping without leaving home? Can we see a doctor without going to the hospital? Can we study without going to school? Can we draw money without going to bank? All these things seemed to be impossible, but now they have become quite possible.

    The Internet helps us open our eyes. The Internet also helps open our minds. The Internet often gives us new ideas. In a word, it helps us in many ways. Great changes have taken place in our life since the appearance of the Internet.

1.Some people say the world is smaller than before because_________.

A. all people like to search the Internet

B. the Internet makes the search smaller in size

C. the Internet brings the outside world closer to them

D. exploring the Internet is one of the most important activities of the day

2.The sentence “The Internet also helps us open our minds.” means_____ .

A. the Internet is new to us 

B. something is wrong with our minds

C. our minds can be opened only by the Internet

D. we can learn more with the help of the Internet

3.We can’t _________ through the Internet.

A. know a good sports match somewhere 

B. cook the meal

C. know a lot of information

D. see a doctor and study all kinds of subjects

4.This passage has told us _________ .

A. it’s helpful to explore the Internet

B. not to explore the Internet any more

C. to stop reading to explore the Internet

D. students should not explore the Internet at any time

5.Which of the following sentences is not true?

A. The Internet can get the information faster than reading.

B. Without leaving home, we can get the money from the bank by radio.

C. People can learn better and more through the Internet.

D. People often learn a lot of new ideas from the Internet.

When you cut your skin，you blood（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 in history, 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”．The blood goes from the arm of the healthy person to the arm of the sick people．

    But there are two problems．First，it does not always work．Sometimes people die when they have blood transfusion．Later, doctors found out that we do not have the same type of blood．There are four groups-O，A，B and AB．we all have blood of one of these groups．They also found they could give any kind of blood to people belonging to AB-groups．But they found that they must give A-·group blood to A-·group people and B·-group blood to B-group people．If I have O-group blood，then 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 found they could keep it in bottles for fifteen to twenty days．They did this by making the blood very cold．Then they had ways to keep it longer．In the end they found a way of keeping blood for a long time．

    We call a place where we can keep money a“bank”．We call a place where we keep blood a“blood bank”．One day，when you grow up，you may give some of your 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．Then the“blood bank”will give you the blood from another person．

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

A．are unhealthy people                             B．have lots of blood

C．are not given the right type of blood              D．are AB-group people

2．Which of the following is TRUE?

A．Doctors can give any kind of blood to the sick people．

B．Doctors can give any kind of blood to AB-group people．

C．Doctors can give any kind of blood to O-group people．

D．A O-group person can’t give his blood to a B-group person．

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 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 lots of blood

D．there are three groups of blood