暑假练****Unit 8
一、词形变化
A 根据句意和汉语注释,写出单词的正确形式:
It’s a good idea to __________ (分开) waste into different groups.
Humans depend on __________ (自然的) energy. So everyone should save it.
With the __________ (发展) of science, out life is becoming better and better.
Of the four problems, I think the fourth one is the __________ (简单的).
It’s a bad manner to throw the rubbish __________ (粗心地).
B 根据句意,用括号内所给单词的适当形式填空:
Look, the gardeners are busy __________ (dig) in the garden.
We can make our air cleaner by __________ (ride) bicycles.
It is time for us to take action to make a __________ (different).
Children grow well under the __________ (protect) of their parents.
There is more and more __________ (pollute) in the world now. We must do something.
二、选择:
What do you think he is going to ______ about the horror TV play?
A. tell B. talk C. speak D. say
In winter, people usually keep flowers in their houses to ______ them against the cold weather.
A. produce B. provide C. protect D. prevent
— Could you come back home for dinner?
— ______. I’ll be at a very important business meeting at that time.
A. I think so B. Yes, I hope so C. I’m afraid not D. I’m afraid so
— Is Li Ming in the classroom?
— No, he ______ there. I saw him in the reading room just now.
A. can’t be B. mustn’t be C. needn’t be D. is
Of the two coats, she’d like to choose the ______ one t