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  3. Both botany(植物学)and zoology are parts of a more general field of science, bi

Both botany(植物学)and zoology are parts of a more general field of science, bi

游客2023-07-24  53
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】______. [br] 【C9】
选项 A、limited
B、unlimited
C、definite
D、indefinite
答案 A
解析 形容词辨析题。根据本句话的意思可以判定答案应从A)、C)当中进行选择，C)项意为“明确的，一定的，有明确界限的”，不符合句意，可被排除。并且从本段最后—一句也可发现正确答案为A)。进行选择时，有时需要首先判断句子是从正面还是从反面角度来淡的，确定之后很多选项一下子就能被排除掉。
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