Question

阅读理解

阅读下列短文，从每题所给的四个选项(A，B，C和D)中，选出最佳选项．

　　One of the most important weapons used during the Second World War was not a weapon used against people, but rather a drug(药) used against disease. The wartime use of penicillin(青霉素)saved thousands of lives. In the First World War, for example, pneumonia(肺炎) caused eighteen percent of all the deaths in the United States army. In the Second World War, the rate(比率)went down to less than one percent. In addition, penicillin was instrumental (有助于) in keeping wounds from getting infected(感染)and in helping to speed the healing process(愈合过程), of those wounds that did become infected.

1．According to the author, the most important weapon in the Second War was ________.

[　　]

A．guns

B．penicillin

C．planes

D．disease

2．From the passage, we know that ________ of America soldiers in the First World War died of pneumonia.

[　　]

A．nearly one fifth

B．half

C．almost one third

D．few

3．Why did much fewer soldiers die of pneumonia in the Second World War?

[　　]

A．Because there were fewer soldiers.

B．As there were fewer diseases.

C．Because the use of penicillin.

D．As soldiers were clever.

4．Penicillin was not used ________ in the Second World War.

[　　]

A．in killing people

B．for treating pneumonia

C．in preventing infection

D．in healing wounds

5．What would be the title of this passage?

[　　]

A．The Second World War.

B．An Important Drug.

C．Many Soldiers Died.

D．Dangerous Weapons.

Answer 1

答案：B;A;C;A;B
解析：