The students were having their chemistry(化学）class. Miss Li was telling the students 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?"
Just then a student put up his hand and said, "Miss Li, you told us that water has no color and no smell. However, where to find such kind of water? The water in the river behind my house is always black and it has a bad smell."Most of the students agreed with him.
"I'm sorry, children. "said the teacher, "Our water is getting dirtier and dirtier. That's a problem."
Choose the best answer:
1. What were the students doing?
A. They were having an English class. B.They were having a Chinese class.
C.They were having a chemistry class. D.They were having a math class.
2. Miss Li was telling the students .
A. what water was like B.what air was like
C.what earth was like D.what weather was like
3. What color was the water in the river behind the student's house?
A.It was white B.It was black C.It was clean D.It was clear
4. Most of the children the student
A. agreed with B.wrote to C.heard from D.sent for
5. Why did the water in the river have color?
A. Because it was getting more and more
B.Because it was getting less and less
C.Because it was getting cleaner and cleaner
D.Because it was getting dirtier and dirtier