完形填空

　　Colour helps you see things．But man and some monkeys and apes(猿) are the only mammals(哺乳动物) that can see colour．1 　 any other mammals，such as the dog，the world 2 　 a black-white photo．Dogs hunt mainly by listening and smelling．

　　Like 3 　 animals，dogs see best when things move．The animals they hunt seem to know this．A rabbit or deer will freeze when they find that they are being hunted．Then the dog 4 　 see it at all

　　Birds can see colour．They need to，because when they fly，they need to find places to land．Colour helps them know 5 　 the place is and what it is like so that they are able to catch flying things in the air or to 6 　 something they think safe．

　　Some birds see things even 7 　 than man．The birds that eat bugs(虫子) can see them from far away．And even a very young bird can see a house 8 　 the sky．So good eyes and being able to see colours help birds 9 　 food and also help them find out 10 　 there are other animals that are dangerous to them．

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根据对话内容选择正确答案。

D：Doctor

M：Madam

D：What’s 　　1　　 with you, madam?

M：I feel very weak．I can not do any work, doctor．

D：How long 　　2　　 like this?

M：Ever since last week．

D：Have you 　　3　　?

M：No, I haven’t got a headache．

D：　　4　　 well at night?

M：Yes, I sleep very well．

D：Do you often 　　5　　?

M：No, I don’t often have breakfast．And I have a little for lunch 　　6　　 I want to keep thin．

D：Oh, I see．There’s nothing 　　7　　．You need to eat 　　8　　 food and 　　9　　 meals a day．And take enough 　　10　　 every day．Then you will get better soon．

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