Question

Man has a big brain (脑). He can think, learn and speak. Scientists once thought that men are different from animals _________they can think and learn. They know now that dogs, monkeys, birds can learn, too. They are beginning to understand that men are different from animals because they can speak. Animals can't speak. They make noises when they are afraid, or unhappy. Apes (类人猿) can understand something_______ than man. One or two of them have learned a few ____. But they can not join words to make sentences. They cannot think ________us because they have _____language. Language is a wonderful thing. Man________build a modern world because he has language.________child can speak his own language very well when he is four or five, _____no animals learn to speak._________do children learn it? Scientists don't really know. _____happens inside our body when we speak? They don't know. They only know that man can

speak because he has a brain.

1.A. after B. if C. before D. because

2.A. quickly B. most quickly C. more quickly D. quicker

3.A. letters B. words C. sentences D. sayings

4.A. as B. about C. like D. over

5.A. not B. a C. no D. some

6.A. can B. may C. must D. can be able to

7.A. No B. Every C. One D. All

8.A. or B. so C. and D. but

9.A. How B. What C. Why D. Which

10.A. Where B. When C. What D. How

Answer 1