Question

Is human blood all the same? “Yes.” You may say, “It’s all red.” Well, it’s not as simple as you might think.

Blood is made up of different parts, such as red blood cells（红细胞）, white blood cells and platelets(血小板).

Two chemical molecules（分子）on the red blood cells make people’s blood different. Scientists mark one molecule “A” and the other molecules “B”. According to which an how many molecules are on the red cell, scientists divide blood into four types: A, B, AB, O. Scientists have been wondering if there are some links between people’s blood

types and their personalities, but they don’t know for sure yet. But some say that people with the same blood type may have things in common. People with type A: They look peaceful from the outside. But they ask too much of

themselves so that they may be very nervous inside. They get happy or sad easily.

Sometimes they are shy but always very careful. They can easily win people’s trust.

People with type B: They have strong minds. Once they start a task, they don’t give

up easily. They’ll try their best to finish it and do it well. Type B people always try to

make themselves different from others. They want to do things in their own way.

People with type AB; They are maybe the strangest among all blood types. They

can be both open and shy , noisy and quiet at the same time. They are responsible and

always ready to help others.

People with type O: They are open and good at making friends. They always start

tasks but don’t always finish them. They have lots of new ideas and love to be the center of attention. They always strongly believe in themselves.

1.From the fourth paragraph, we know the blood types are decided by ________.

A. the kind and amount of platelets.

B. the amount of white blood cells

C. the kind and amount of molecules on the red cells

2.Scientists are _____ about the relations between blood and personalities.

A. careful           B. uncertain        C. worried

3.If you are with type A, you might _________.

A. look peaceful outside

B. be always ready to help others

C. have strong minds

4.If a person is both open and shy, noisy and quiet at the same time, he or she might be with _______ blood.

A. Type O             B. Type B          C. Type AB

5.The BEST title of the passage is  “ _______”.

A. Blood Type

B. Red Cells and White Cells

C. Blood Type and Personalities

Answer

1.C

2.B

3.A

4.C

5.C

【解析】

试题分析：人的血型根据红细胞的种类及数量，可分为A型、B型、AB型、O型四种类型。并介绍了血型与人的性格之间的关系。

1.C细节理解题。根据短文中的句子Two chemical molecules（分子）on the red blood cells make people’s blood different. According to which an how many molecules are on the red cell, scientists divide blood into four types: A, B, AB, O.可知，人的血型由红细胞的种类及数量决定。故答案为C。

2.B细节判断题。根据短文中的句子Scientists have been wondering if there are some links between people’s blood types and their personalities, but they don’t know for sure yet.可知，科学家们不能确定血液和性格之间的关系。故答案为B。

3.A细节理解题。根据短文中的句子People with type A: They look peaceful from the outside.可知，A型血的人表面看起来很平静。故答案为A。

4.C细节理解题。根据短文中的句子People with type AB; They are maybe the strangest among all blood types. They can be both open and shy, noisy and quiet at the same time.可知，拥有双重性格的人属于AB型。故答案为C。

5.主旨大意题。短文主要介绍了血型与人的性格之间的关系，故答案为C。

考点：科普类短文阅读。