You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you.

There are four basic types of blood; A, B, AB, and O. A simple test can make sure of a person's blood type. Everybody is born with one of these four types of blood. Blood type, like hair color and height, is received from parents.

The four groups must be transfused carefully. A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B．O can give to any other group; therefore, it is often called the universal donor （万能捐赠者）. For the opposite reason, AB is sometimes called the universal recipient（接受者）. However, because so many reactions （反应） can happen in transfusions（输血）, patients usually receive only salt of plasma （liquid part of blood） until their blood can be matched as exactly as possible in the blood bank of a hospital. In this way, it is possible to prevent the transfusion from any bad reactions.

1. People with type A blood can receive type     .

A．AB                         B．B                    C．O                           D．all of the three

2. If you need a blood transfusion, the best and safest blood for you is     .

A．a mixture of type A and type B

B．a mixture of salt, plasma and type O

C．type AB

D．exactly the same type as your own

3. The phrase "universal recipient" means a person who     .

A．can receive blood of type A or B

B．can receive blood of any other type

C．can give blood to anybody

D．cannot give blood to others

4. A good title for this article is     .

A．Getting Enough Blood

B．Differences Between Blood Types

C．Man's Four Types of Blood

D．How to Give Blood Transfusion

5. Which of the following statement is NOT true?

A．Carelessness in a blood transfusion may lead to death. 

B．AB is the mixture of A and B

C．AB is called the universal recipient because it can receive any other group.

D．In transfusions, patients usually receive only salt of plasma at first.

阅读下列短文，从每题所给的四个选项中选出最佳选项。

　　You have been badly injured in a car accident it is necessary to give you a blood in blood transfusion because you lost a great deal of blood in the accident，however，special care must be taken in selecting new blood for you．If the blood is too different from your own，he transfusion could kill you．

　　There are four basic types of blood：A，B，AB and O．A simple test can tell us a person's blood type．Everybody is born with one of these four types of blood．Blood type，like hair color and height，is inherited from Parents．Because of the substances contained in each type，the four group must be trans-fused carefully．Basically，A and B cannot be mixed．A and B cannot receive AB，but AB may receive A or B．O can give to any other group；so it is often called the universal donor．For the opposite reason，AB is sometimes called the universal recipient．However，because there can be so many reactions in trans-fusions，patients usually receive only salt or plasma(血浆)until their blood can be matched as exactly as possible in the blood bank of the hospital．In this way，it is possible to avoid any bad reactions to the transfusion．

　　There is a relationship between your blood type and your nationality．A-among the Europeans，about 42 percent have type A while 45 percent have type O．The rarest is type AB．Other races have different percentage．For example，some American Indian groups have nearly 100 Percent type O．

1．Which of the following diagrams shows the correct relationship in blood transfusions？(giving blood to→、)

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2．Usually，a person who as been injured and lost too much bloodshould be given a blood transfusion________．

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A．after he has a good rest

B．after he receives salt or plasma

C．immediately after the accident happens

D．before there are so many reactions

3．If the blood is too different from the injured，the transfusion________．

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4．The writer suggests that the third most common blood type among the Europeans is________．

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5．The passage mainly tells us that________．

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A．there is only one type of blood in a person's body

B．a person's blood type is decided by hair and height

C．a person's blood type can be changed into another

D．there are four basic types of blood in a person's body

A mother and daughter living in my neighborhood were the most unfriendly people I had ever come across in my life. They mixed with   1  . As they drove past neighbors they made no sign of acknowledgement. They   2   went to the local police station to report music played too   3  , dogs barking more than once a day and any other   4   things.

On moving into this   5  , I was warned about them but decided I would make up my own mind. This proved quite a （n）   6  to me as more than once either the mother or the daughter would knock on my door and   7 . however, I always answered politely and made sure I  8  as they went past my place and made an effort now and then to make a   9   remark about their garden or pets.

Time passed and I   10   the 29 – Day Giving Challenge （奉献挑战）. In October, as part of the kindness rock give （送爱心石头活动）, I decided to place a kindness rock on their property （房子）. Their   11   remained unchanged, however, and I continued to be as   12   as possible. During the Easter  13  give （复活节礼物奉送） to senior citizens, I decided to add these two days later they stopped at my  14  and jokingly said they were   15  hanging their Christmas stocking on their gate. I said I would try that too. I didn’t want them to   16   I had placed the kindness rock. The bigger  17   was that they brought me a bunch of flowers!

So, do not   18   your random （普普通通的） gifts of kindness! You may never know just what this   19   to others, nor how many broken or hard hearted people you may just   20   with a simple act of kindness.

1．A．everybody             B．nobody                C．somebody           D．anybody

2．A．nearly                   B．ever                    C．never                  D．often

3．A．sweetly                 B．slow                   C．loud                    D．impressively

4．A．little                      B．fantastic              C．good                   D．difficult

5．A．neighborhood        B．relationship          C．station                 D．family

6．A．agreement             B．challenge             C．favor                  D．trade

7．A．chat                      B．explain                C．complain             D．apologize

8．A．concluded             B．insisted                C．argued                D．waved

9．A．casual                   B．personal              C．kind                    D．bad

10．A．discovered           B．joined                  C．organized            D．fought

11．A．wealth                 B．attitude                C．location               D．status

12．A．friendly               B．cold                    C．calm                   D．selfish

13．A．enemies               B．relatives               C．friends                D．ladies

14．A．table                   B．floor                   C．gate                    D．roof

15．A．considering          B．avoiding              C．regretting            D．practicing

16．A．know                  B．remember            C．mention               D．forget

17．A．celebration           B．surprise               C．problem              D．difference

18．A．add up                B．hold on                C．hand out              D．give up

19．A．occurs                B．introduces           C．means                 D．advises

20．A．decorate              B．judge                   C．feed                    D．change

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　　Every country has its heroes. The heroes are the people the nation and especially the young people 1 . If you get a fist of the heroes of a nation, 2 will tell you the potential (潜力) of the nation.

　　If today in America, you ask the high school students 3 their heroes, their 4 would probably fall into three groups. The first group of heroes would be the rock stars-the people with rock music. There is no doubt that such people do have talent but one 6 if one should hold up rock stars as a 7 .The rock stars are too often mixed with drug and their personal life is not all that 8 . The rock stars are rich and wear the latest fashion styles (时装). However, one should put more in a hero than 9 things as money and fine clothes.

　　A 10 type of heroes for the American youth are the sports stars. Again you have a person who has a great talent in one area- 11 . However, too often the personal life of the sports stars is 12 disorder. Too frequently drugs and drinking are a part of life of the sports stars.

　　A third group of heroes are TV or movie stars. These people may have lots of 13 talent and are quite handsome or beautiful. However, the personal life of too many actors is quite sad and 14 be held up as a model for young people.

　　Today, the rock stars, the sportsmen, and the actors 15 have become the models of the youth in America. Really, do you hear a young person say that his 16 is a doctor, a teacher, or a scientist? These people are not 17 and do not wear fashionable clothes. However, they are 18 people who work hard to make the world a better place for everyone.

　　What is really sad is that the young try to 19 their idols (偶像) .They like to wear the same clothes as theirs. If the idols today for the American youth are 20 only to rock stars, sportsmen and actors, the future of the youth, as well as the nation, does not look too bright.

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Every country had its heroes. The heroes are the people that nation and especially the young peo­ple 21_____ . If you get a list of the 22   _____of a nation, it will tell you the potential (潜力）of the nation.

If today in America ’ you ask the high school students to list their heroes their 23____ would prob­ably divide into three groups. rHie first group of heroes would be the rock stars—the people 24 _____with rock music. There is no doubt that such people do have talent (天才）but one 25_____ if one should hold up rock stars as model. The rock stars too often are mixed with drugs and their personal life isnot all that — 26 ____  . The rock stars are rich and wear the latest fashion styles (时装）.However oneshould 27 _____more in a hero than such things as 28______ and fine clothes.

A second type of heroes for the American youth are sports stars. Again you have a person who has a great talent in one area_ 29 _____. However, too often the personal life of the sports star is a bit 30_____. Too frequently drugs and drinking are a part of 31_____ of the sports stars.

A third group of heroes are TV or movie stars. These people may have lots of 32___ ，tal­ent and are quite handsome. However ’ the personal life of too many actors is quite sad and should not be held up as a 33____  for young people.

Today，the rock stars，the sportsmen  and the actors 34____ have become the models of the youth in America. Really,do you hear a young person say that his 35____ is a doctor, a teacher or a scientist? These people are not 36____ and do not wear fashionable clothes. However, they are 37____ people who work hard to make the world a better place for everyone.

What is really sad is that the young try to 38____ their heroes. They like to wear the same clothes as theirs, if the heroes of today for the American youth are 39 ____only to rock stars, sportsmen and actors, the future does not look too 40_____ .