Man has a big brain. He can think, learn and speak. Scientists once thought that men are different from animals because they can think and learn. They know that animals can learn—dogs, rats, birds can learn. So scientists are beginning to understand that men are different from animals because they can speak. Animals cannot speak. They make noises when they are afraid, or angry, or unhappy. Apes（猿） can understand some things more quickly than human, one or two have learnt a few words. But they are still different from us. They cannot join words and make sentences; they cannot think like us because they have no language. They can never think about the past or the future.

Language is a wonderful thing. Man has been able to build a modern world because he has language. Every child can speak his own language very well when he is four or five—but no animal learns to speak. How do children learn? What happens when we speak? Scientists do not know.

They only know that man can speak because he has a big brain.

1.In what way are men different from animals?

A. Men have learnt to use language.

B. Men can learn.

C. Men can understand things quickly.

D. Men have brains.

2.What is the thing an ape cannot do?

A. Making noises. B. Understanding things.

C. Learning words. D. Speaking like men.

3.Scientists now know _______.

A. how children learn to speak

B. what happens when men speak.

C. why apes can learn a few words

D. man's brain helps him to learn to speak

4.What is the suitable topic for this passage?

A. Ape's Language. B. Man's brain and Language.

C. Human Brain. D. Animals Learning.

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