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As children move towards adulthood(成年),they become taller,stronger,and more independent At some point in adulthood, 21 ,a slow decline begins.Their hair often 22 g hr skin wrinkles,and their muscles begin to 23 Their short-term memory may suffer,and they often 24 part of their vision or hearing.
Scientists are not 25 sure what causes the effects of aging.The body might have a time26 which would determine how long the cells can remain 27_.Depending on the type of animal and its environment,animals age at different rates and live 28 different lengths of time.An animal in a good zoo-well 29_and protected from predators(捕食者)—often lives longer than the same type in the wild. 30_,people who live in rich countries generally live longer than 31 in poor countries.
genetics(遗传) .In some families,it seems that many 33 have long lives. Genetics may also
determine whether people 34 P w h
minds 35 and often communicate wih friends will feel younger and may live longer. People who keep a normal weight,exercise,and do not smoke may also age more slowly.28填
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A、with
B、on
C、in
D、for
答案是:D
解析：【答案】D
考情点拨】介词辨析题。
应试指导】本句句意：根据动物的种类和生存环境的不同，动物的衰老速度和寿命也不同。 live with 意为“与………同居”, live on 意为“靠……生活”, live in 意为“居住在”, live for ＋一段时间意为“生存多久”。根据句意，故选 D 。
出自
成人高考 > 英语 >
2021年成人高考专升本《英语》真题试卷与答案
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1、As children move towards adulthood(成年),they become taller,stronger,and more independent At some point in adulthood, 2
2、As children move towards adulthood(成年),they become taller,stronger,and more independent At some point in adulthood, 2
3、（）students are there in your school,Tom?
4、As children move towards adulthood(成年),they become taller,stronger,and more independent At some point in adulthood, 2
5、Let me（） what I mean.
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