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Both botany(植物学)and zoology are parts of a more general field of science, biology. The two are studies of【C1】______things, which
Both botany(植物学)and zoology are parts of a more general field of science, biology. The two are studies of【C1】______things, which
admin
2010-08-04
51
问题
Both botany(植物学)and zoology are parts of a more general field of science, biology. The two are studies of【C1】______things, which share certain characteristics,【C2】______they are plants or animals. Botany deals with plants,【C3】______organisms that can manufacture their own【C4】______by the use of sunlight.【C5】______, on the other hand, deals with animals, those organisms that cannot manufacture their own food and are【C6】______dependent on plants for their food.
Plants and animals【C7】______many abilities, but the extent【C8】______which plants can exercise some of those abilities is【C9】______. For example, both plants and animals need food, water, and warmth for growth, but plants can【C10】______to acquire those needs only by the slow【C11】______of their leaves and roots,【C12】______animals can move large distances in relatively【C13】______time. When an animal is hurt with a needle, the animal will【C14】______the part of the body being【C15】______. This ability to draw back【C16】______pain or irritation, called irritability, is【C17】______only to a very limited extent in plants.
If plants have the same【C18】______and irritability as animals, animals would have a more difficult time finding food. If animals were as limited as plants, they might have evolved a【C19】______of manufacturing their own food, as plants d9 now. The world would be a very difficult place than it is if the characteristics of the plants and animals were【C20】______.
【C20】
选项
A、revised
B、reviewed
C、reexamined
D、reversed
答案
D
解析
动词辨析题。reverse意思为“功能或位置等的互换”,填人后符合上下文的意思。此处是说如果动植物的特点互换的话,世界会大不相同。其他三个动词形近,但意义各不相同。revise意为“修订,校订,修正,修改”;review意为“回顾,复习”;reexamined意为“复试”,都不符合要求。
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0
大学英语四级
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