题目：
The students were having their chemistry class. Miss Li was telling the children what water was like. After that, she asked her students, “What’s water?” No one spoke for a few minutes．Miss Li asked again，“Why don’t you answer my question? Didn’t I tell you what water is like?”
“I’m sorry，children.” said the teacher，“Our water is getting dirtier and dirtier．That’s a problem.”
小题1:The students were having their _______ class．
A．English
B．Chinese
C．chemistry
D．maths小题2:Miss Li was telling the children what ______ was like．
A．water
B．air
C．earth
D．weather小题3:A boy said，“The water in the river behind my house is always _______．”
A．white
B．black
C．clean
D．clear小题4:Most of the children _______ the boy．
A．agreed with
B．wrote to
C．heard from
D．sent for小题5:The water in the river has colour and smell because it is getting _______．
A．more and more
B．less and less
C．cleaner and cleaner
D．dirtier and dirtier
答案：
小题1:C
小题2:A
小题3:B
小题4:A
小题5:D
小题1:根据文章内容The students were having their chemistry class可知答案为C
小题2:根据文章内容Miss Li was telling the children what water was like.可知答案为A
小题3:根据文章内容
可知答案为B
小题4:根据文章内容可知答案为A
小题5:根据文章内容“I’m sorry，children.” said the teacher，“Our water is getting dirtier and dirtier．That’s a problem.”可知答案为D
