Many hospitals have blood banks．In these banks, blood of all types is stored．When blood is needed, it is taken from the bank．Healthy people then give blood to the bank to replace (取代) the blood that is used．Blood can be kept in the fridge for about three weeks with a kind of chemical．

When people lose much of their blood because of operation or accident, they may need transfusions (輸血)．Some people may need transfusions because of illness．Sometimes only a part of the blood is used for transfusions．Plasma (血漿), the liquid part of the blood, may be given alone．Transfusions of plasma are often given when people have been badly burned．

When a person gets a transfusion, he gets blood of the same type as his．Or there maybe a bad reaction (反應(yīng))．To make it safer, before a transfusion is given, the blood to be used must be tested with the blood of the person who is to receive it．This testing is called cross matching of the blood．

Oswald Robertson, an American doctor, was the first one to give transfusions．He used blood that had been stored for some time to help wounded soldiers in 1918 in World War I．

1．Blood banks usually have        ．

A．only one type of blood

B．one or two types of blood

C．two or three types of blood

D．all types of blood

2．Blood banks get blood from        ．

A．healthy people       B．operations        C．accidents         D．transfusions

3．Before a transfusion, it is important to make sure that              ．

A．the blood is cold

B．the blood has been stored long enough

C．the blood is from people who have accidents

D．the type of blood to be used is the same as the patient's

4．To make it safer,        is needed before a transfusion．

A．an operation                                                        B．a reaction

C．a healthy man                                                      D．cross matching of the blood

5．This passage wants to tell us               ．

A．who Oswald Robertson was                                 B．the first transfusion

C．how blood banks work                                        D．what blood banks are like

根據(jù)句意完成已給出首字母或漢語提示的單詞，使補(bǔ)全后的句子意義通順，語法正確。

1．They are getting along well．They often help e       other．

2．Smoking is not a       in public places．

3．T       to Edison's invention, people now have electricity to use．

4．My f       sport is football．I like it best of all．

5．As the famous saying, it's better to give than to r       ．

6．The        (人口) of China is not increasing so fast as before．

7．The girls want to become        doctors (女醫(yī)生) when they grow up．

8．This is the        (第五) accident that has taken place this month．

9．The sailing competition is to be held in        (九月) in Qingdao．

10．Everyone knows that plants can't live        (沒有) water．

根據(jù)下面所提供的對話情景，在每個空白處填入一個適當(dāng)?shù)木渥�，使其意思連貫，完整。

A: Excuse me, sir? Where is the nearest post office?

B:                1               ． You may ask that policeman over there．

A: Thank you anyway．

(The man goes to the policeman．)

A: Excuse me．             2             ?

C: No, there isn't a post office near here, but there is one near Xinhua Bookstore．

A:              3                ?

C: It's about three kilometers away．

A:                4                ?

C: You'd better take a taxi, because it's so late, and there aren't any buses now．

A:                 5                ．

C: You're welcome．

Bird flu (禽流感) is a kind of serous            in the world today.

A. disease    B. pain    C. patients    D. medicine

On every piece of the paper              pictures of some horses.

A. is    B. are     C. has     D. have

---You'd better          your toys after playing, Tom.

--- All right, I will.

A．put on    B.put out    C.put off    D.put away

My mother doesn't like doing the housework at home. She usually           much time

shopping in the supermarkets.

A. spends     B. costs     C. takes     D. pays

Her son speaks good English as he            America for five years.

A. has been in   B. has been to     C. has gone at     D. has gone to

---My tooth is aching again!

--- I think you should have       out in the hospital.

A. to pull it     B. pulled it     C. it pulling     D. it pulled