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Color is very important to most animals for it helps them to get along in the world. Color【C1】______to make an animal difficult
Color is very important to most animals for it helps them to get along in the world. Color【C1】______to make an animal difficult
admin
2017-03-25
66
问题
Color is very important to most animals for it helps them to get along in the world. Color【C1】______to make an animal difficult for its enemies to【C2】______. Many animals match their【C3】______so well that as long as they do not move no one is【C4】______to see them. You probably have often "jumped" a rabbit. If you【C5】______, you know how the rabbit sits perfectly still【C6】______you are just a few feet away. You【C7】______see the rabbit till it runs for its【C8】______matches very closely the place where it is【C9】______. Many times you may have walked past a rabbit【C10】______didn’t run and you never knew it was there at all.
One of the most usual color schemes that helps animals to keep【C11】______being seen, is a dark back and light underpants. If an animal is the same color all【C12】______, there is always a dark shadow along the animal’s belly(腹部).【C13】______an enemy couldn’t see the animal he could see this dark shadow. The shadow makes the animal【C14】______out to view. But if the belly is【C15】______than the rest of the animal, the shadow will not be noticed.
【C13】
选项
A、Even if
B、Unless
C、However
D、As long as
答案
A
解析
Even if意为“即使”,可引导让步状语从句,此处前后句子有让步的关系,故A项(即使)正确。
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