What’s water

What’s water
The students were having their chemistry (化学) 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 water is like?” Just then a boy put up his hand and said,“ Miss Li, you told us that water has no color and no smell. But 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 children agreed with him.“ 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
小题2:Miss Li was telling the children what         was like.
A. water                    B. air                  C. earth
小题3:A boy said, “The water in the river behind my house is always __________.”
A. white                    B. black                    C. clean
小题4:Most of the children         the boy.
A. agreed with              B. wrote to             C. heard from
小题5:The water in the river has color and smell because it is getting _________.
A. more and more            B. less and less            C. dirtier and dirtier