Question

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Both men and women are living longer these days in industrialized countries. 1. In general, they can expect to live six or seven years more than men. One reason for this is biological.

One important biological factor that helps women live longer is the difference in hormones between men and women.   2. Between the ages of about 12 and 50, women produce hormones that are involved in fertility(生育能力). These hormones also have a positive effect on the heart and blood flow. In fact, women are less likely to have high blood pressure or to die from heart attacks.

3.   They help the body defend itself against some kinds of infections. This means that women generally ger sick less often and less seriously than men. The common cold is a good example: women, on average, get fewer colds than men. 4.   Scientists are still not exactly sure how influence aging, but they believe that they do. Some think that a woman’s body cells have a tendency(向) to age more slowly than a man’s. Others think that a man’s body cells have a tendency to age more quickly. 5. 

A．However, women, on average, live longer.

B .The biological factor plays an important part.

C. Women are also helped by their female genes.

D. The female hormones also protect the body in another way.

E. Recent research seems to support both of these possibilities.

F. Therefore, women are more healthy than men and can live a better life.

G. Hormones are chemicals which are produced by the body to control carious body functions.

Answer

1.A

2.G

3.D

4.C

5.E

【解析】

试题分析：女性比男性寿命长的原因。

1.A根据空格下一句：一般说，女性比男性多活6到7年。可知此处的意思是：然而，女性平均比男性寿命更长。故选A。

2.G根据空格上句：男性和女性之间荷尔蒙的不同帮助女性寿命更长。可知此空的意思是：荷尔蒙是身体生产的控制各种身体功能的化学物质。故选G。

3.D根据下句：它们帮助身体本身抵抗各种感染。可知此空的意思是：女性荷尔蒙也用另一种方式保护身体。故选D。

4.C根据下句：科学家仍然没有确切地表明基因怎样影响年龄，但是他们认为基因却是在影响年龄。可知上句：女性基因也在帮助女性。

5.E根据空格前两句：一些人认为女性身体细胞有一个比男性老化慢的倾向，另一些人认为男性身体细胞有一个老化快的倾向。可知E项符合题意。“最近研究似乎支持这两种可能”。故选E。