2. 外语
  3. By 2003 an estimated 42 million people were infected【S1】______and more than 20 million people had died of AIDS. A United Nation

By 2003 an estimated 42 million people were infected【S1】______and more than 20 million people had died of AIDS. A United Nation

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问题     By 2003 an estimated 42 million people were infected【S1】______and more than 20 million people had died of AIDS.  A United Nations report presented in 2002【S2】______that unless prevention programs were greatly expanded, AIDS would claim an【S3】______68 million lives by 2020. Sub Saharan Africa has been the region hardest hit by the HIV/AIDS pandemic; more than two-thirds of all people with HIV/AIDS are in this region. In the United States, an【S4】______900,000 people were living with HIV/AIDS in 2002.
    HIV is spread through contact with【S5】______body fluids such as blood and semen. Infected people may harbor the virus within their bodies for several years or even longer before developing symptoms of AIDS. Though symptomless, they can still infect others. Worldwide, most HIV【S6】______occurs during sexual relations between heterosexual partners. In the United States, the majority of transmission has been between homosexual partners. Transmission among drug addicts who【S7】______infected needles is another significant route of transmission in many countries.
    No cure for AIDS is known Researchers are working on preventative AIDS【S8】______, but none are expected to be ready for market in the near future. Meanwhile, drug therapies introduced in the mld-1990’s have been extremely effective in controlling AIDS【S9】______for some patients. However, the medications are expensive, putting them beyond the reach of the【S10】______majority of the world’s HIV-positive people.

A) estimated         B) transmission           C) novel               D) additional  
E) vast              F) peculiar               G) infected            H) vaccines
I) remarkable        J) predicted              K) restore             L) commit
M) share             N) progression            O) worldwide
【S10】
选项
答案E
解析 根据文意，对于世界上大部分艾滋病病毒检测呈阳性的人来说，药疗法太昂贵了，超出了他们能负担的范围。形容词vast意思是“巨大的，广大的”，符合题意，故选E)。
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大学英语四级

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