共用题干 AgingThroughout history man has ha

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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._________(57)A:a number        B:the amountC:the number        D:most

选项 _________(57)
A:a number       
B:the amount
C:the number       
D:most

答案 A

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。

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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