2. 外语
  3. 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

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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】______.
【C18】
选项 A、movements
B、mobility
C、moving
D、motions
答案B
解析 名词辨析题。此句话的意思是如果植物与动物具有相同的流动能力与反应能力的话，动物寻找起食物来会更困难。该题的四个选项中只有B)表述正确。首先可以排除选项C)，因为根据上下文可以看出此处应填入一个名词；选项A)的意思是“移动；活动”，选项D)的意思是“运动”，从意思和上下文的情况来看都不合适，可被排除。
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大学英语四级

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