科学家声称,动物,包括人类,生命可以延长五倍。如果这一理论是正确的,未来人类预期寿命可达150年。关键词汇:claim:声称;normal period:正常成长期; life-span:寿命。这句话的难点就是把这些词翻译出来。

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问题  
Ladies and gentlemen, since the international club meets only once every semester, for this special event, the first thing on our agenda is to elect a person to chair our meeting.
Scientists claim that animals, including men, can live 5 times longer than their normal period of growth. If this theory is accurate, our future generations can expect a life-span of 150 years.

选项

答案科学家声称,动物,包括人类,生命可以延长五倍。如果这一理论是正确的,未来人类预期寿命可达150年。

解析 关键词汇:claim:声称;normal period:正常成长期; life-span:寿命。这句话的难点就是把这些词翻译出来。
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