[单项选择]Light is different ______ sound ______ the way it travels.
A. in, from B. of, to C. by, for D. from, in

[单项选择]Light is different ______ sound ______ the way it travels.


A. in, from
B. of, to
C. by, for
D. from, in

[填空题]Human beings act in a different way from 21 of animals just because they can speak while animals cannot. 22 the cleverest animals cannot do things which to us seem very 23 and which small children, 24 they learn to talk, would be able to do. A German scientist, who 25 experiments for many years with big apes, found that his apes could 26 his sticks as tools to pull down bananas which they could not 27 . But they only used the stick to get a banana when both the banana and the stick were 28 view at the same time. If the banana was in front of them and the stick was behind them, they could not use the stick. They could not 29 the banana 30 enough in mind to look around and then pick up the stick and use it.
A. A．that
B．this
C．way
D．eat

[单项选择]Light goes three quarters of the way from the earth to the moon in one second（）
A. 光一秒钟以后能走完25%的距离，从地球到月球。
B. 光在一秒钟内可以完成地球到月球距离的四分之三。
C. 光一秒可以走过地球至月球距离的四分之三。
D. 光一秒钟可以通过地球到月球距离的四分之三。

[单项选择]In what way are open prisons different from closed prisons（）
A. Some of their prisoners are allowed to study or work outside prisons.
B. Most of their prisoners are expected to work.
C. Their prisoners are often sent to special centers for skill training.
D. Their prisoners are allowed freedom to visit their families.

[单项选择]The study of the way in which sound symbols are arranged to form words is ______.


A. psycholinguistics
B. historical linguistics
C. morphology
D. semantics

[单项选择]A good way of learning to make the sound of a new language is to use recordings which have paused after each sentence giving you time to say what have learnt before the next sentence comes．