题目内容

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

 

【答案】

1.C

2.C

3.A

4.A

5.C

【解析】

试题分析：这篇短文主要讲述血在我们的生命中重要的东西，人失血太多有可能失去生命，献血既可以救人又可以在自己需要时使用，所以献血对自己是有好处的。

1.推理判断题。根据短文第三段Later, doctors find that we do not all have the same kind of blood.描述，可知我们的血型不是都一样。可以推理输血后死亡是由于血型错误。故选C。

2.是非判断题。根据At one time, some people even drank blood to make them strong! 可知时间是以前的某个时期，故A不正确。根据Sometimes people die when they have blood transfusion.可知B错误。根据I have O-group blood and the doctor told me that I could give blood to anyone else safely.可知C正确。根据In the end they find a way of keeping blood for a very long time.可知D不正确。故选C。

3.推理判断题。根据最后一段及短文Often they can not find a person in time. If they have a way to keep the blood until someone needs it描述，可知是为了储存血液，当需要时可以使用。故选A.

4.推理判断题。根据最后一段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.可知，献血既可以救人又可以在自己需要时使用，所以献血对自己是有好处的，故选A

5.词义猜测题。根据文章作者没有谈论到血库的位置，故选C。

考点：科普类短文阅读。

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