完形填空

　　The students were having their chemistry(化学)class．Miss Li was telling the children 　　1　　 water was like．After that, she asked her students,“What's water?”　　2　　 spoke for a few minutes．Miss Li asked again,“Why don't you answer my question?Didn't you 　　3　　 me carefully just now?”

　　Just then a boy 　　4　　 his hand and said,“Miss Li, you tell us that water has no color and no smell．But where to 　　5　　 such kind of water?The water in the river behind my house is always black and it has a 　　6　　 smell．”Most of the children agreed 　　7　　 him．The boy went on saying：“My family and neighbors are 　　8　　 about the water．We wonder when and how we can stop the factories from 　　9　　 the river．”

　　“I'm sorry, children．”said the teacher,“Our water is getting 　　10　　．That is what we should talk about next．”

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　　Welcome to the zoo, everyone!Here is our plan．Listen carefully．First we will visit the Children's Zoo．After that, we will walk to Bird World．Next is the African Area．There are elephants and lions!Don't be afraid, the cages are safe．

　　Then, we will have lunch．Everybody brought their lunch, right?Some of you don't have drinks．That's all right．There are many places to buy drinks．

　　After lunch, we will go to the Asian Area．Last, there is the Butterfly Park．Then, we will come back here and get on the bus．(Choose the right answer．)

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