【題目】根據(jù)短文內(nèi)容，從短文后的選項(xiàng)中選出能填入空白處的最佳選項(xiàng)。選項(xiàng)中有兩項(xiàng)為多余選項(xiàng)。

With the development of society, the life span of humans has stretched. 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 boy defend itself against some kinds of infections. This means that women generally get 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 genes influence aging, but they believe that they do. Some think that a woman’s body cells have a tendency 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 various body functions.

【答案】

【1】A

【2】G

【3】D

【4】C

【5】E

【解析】

試題分析：本文講述了女性比男性壽命長的原因。

【1】A 根據(jù)空格下一句：一般說，她們比男性多活6到7年。故空格處講的是女性平均比男性壽命更長。故選A。

【2】G 根據(jù)空格上句：一個(gè)重要的幫助女性活得更長的生理因素是男性和女性之間荷爾蒙的不同。再根據(jù)空格下句：在大約12到50歲之間，女性生產(chǎn)參與生育的荷爾蒙。故此空與荷爾蒙有關(guān)，故G項(xiàng)“荷爾蒙是身體生產(chǎn)的控制各種身體功能的化學(xué)物質(zhì)。”符合上下文語境。

【3】D 根據(jù)下句：它們幫助身體本身抵抗各種感染。故D項(xiàng)“女性荷爾蒙也用另一種方式保護(hù)身體。”符合語境。

【4】C 根據(jù)下句：科學(xué)家仍然沒有確切地表明基因怎樣影響年齡，但是他們認(rèn)為基因卻是在影響年齡。故C項(xiàng)“女性基因也在幫助女性。”符合語境。

【5】E 根據(jù)空格前兩句：一些人認(rèn)為女性身體細(xì)胞有比男性老化慢的傾向，另一些人認(rèn)為男性身體細(xì)胞有老化快的傾向。故E項(xiàng)“最近研究似乎支持這兩種可能”總結(jié)前兩句。故選E。

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