3．　 细节题。文章第六段介绍爱滋病传染途径。

2．　 细节题。第五段最后两句提供信息源。

1．　 从文章一二段提供的细节判断，答案：D。

3．　 判断题。答案：C。

Passage 82　　　 1. D　　 2. C　　 3. D　　 4. A

研究爱滋病的起源，对爱滋病的防治有着重要意义。

2．　 句义理解。答案：B。

1．　 指代关系。答案：D。

5.　　　 The author went to a Red Gross clinic when he (or she) arrived in Beijing five years ago because ______

A.　　　　 the author wanted to sell blood

B.　　　　 the author wanted to continue to give blood for free

C.　　　　 the author went to see an old friend

D.　　　　 the author wanted to see a doctor

专题九　 生活保健练习答案及详解

Passage 81　　　 1. D　　 2. B　　 3. C

乐于助人延年益寿。

4.　　　 In the passage, the author stated but didn’t say directly that _________

A.　　　　 the number of people who offered blood in Canada is larger than that in China

B.　　　　 a donor only gives blood for free to his brothers or sisters

C.　　　　 more and more Chinese have understood the meaning of giving blood

D.　　　　 a blood donation is a good habit

3.　　　 From the third passage we can infer that ________

A.　　　　 before 1984, most Chinese thought giving blood was a dangerous thing

B.　　　　 in 1993, the number of donors who offered blood for free was less than 28032

C.　　　　 donors are received as heroes

D.　　　　 people like to give blood

2.　　　 The amount a donor gives in Canada a year is that a donor gives in China ______

A.　　　　 two years

B.　　　　 about 3.5 years

C.　　　　 half a years

D.　　　　 about 4.5 years