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  3. 共用题干 AgingThroughout history man has ha

共用题干 AgingThroughout history man has ha

Freeti2019-12-17  42
问题 共用题干Aging

Throughout history man has had to accept the fact that all living things must die,but people now live longer than they used to.Yet all living things still show the________(51)of aging,which will eventually________(52)death.
Aging is not a disease,but as a person passes maturity,the cells of the body and the________ (53) do not function as well as they did in childhood and adolescence（青春期）.The body provides less________(54)against disease and is more likely________(55)have accident.
A number of related causes may________(56)aging. Some cells of the body have a fairly long life,but they are not reborn when they die.As a person ages,________(57)of brain cells and muscle cells decreases.The other cells are replaced by new cells.In an aging person the________(58) cells and muscle cells may not be as viable（能生存的）or as capable________ ( 59 ) growth as those of a young person.
Another________(60)in aging may be changes within the cells themselves.Some of the protein chemicals in cells are known________(61)with age and became less elastic.This is why the skin of old people wrinkles and________(62).This is also the reason old people________(63)in height. There may not be other more important chemical changes in the cells.Some complex cell chemicals, such as DNA and RNA,store and________(64)information that the cells need.Aging may affect this________(65)and change the information-carry molecules so that they do not transmit the information as well.
选项 _________(51)A:function        B:effectC:fact        D:symbol
答案B
解析本句话的意思是衰老导致死亡。所以，此处应选B项。 result in：导致，例如：Their dispute resulted in war．他们的争端导致了战争。与题意相符。因此，选择D。 由上下文可知此处应填入表示“人体器官”的词，选项A、B、C项均是人体器官中的一部分，器官的总称是organs，因此，选项D为正确答案。 protect against：保护……使其免受伤害，例如：Troops have been sent to protect aid workers against attack．已经派出部队保护援助人员免遭袭击。此处缺少的是名词，所以应填入protection be likely to have accident：更易发生意外事件。 contribute to：导致、促成，例如：Your suggestion has greatly contributed to the accomplishment of our work．你的建议大大地促进了我们工作的完成。 选项B、C表示数量的多少，不能填到此处。most：表示大多数的意思，也不符合题意。因此，选项A为正确答案。 由于前句中提到死去的人体细胞被新的细胞所代替，因此，这句话一定是阐述新细胞的，因此，选项C为正确答案。 capable of：具有能力的，属于固定搭配，例如：Susan is capable of hard work．苏珊能胜任艰苦的工作。因此，选项C为正确答案。 这一段是和上一段平行的，都是谈论导致衰老的原因，选项C与题意相符，因此，为正确答案。 略 所选词和wrinkles保持时态一致，故选A。 由上下文可以推断出本句表示老人身高变矮，因此，只能填入A项。 此句是传递信息的意思，pass on：传递，例如：Would you pass it on to the next person？把它传给下一个人好吗？ 传递是一个过程，因此，本句应填入选项D。
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