A ： What are you doing in the bathroom?

B: I'm 1 my hair.

A：You should turn 2 the tap. The water is going down the drain.

B:It doesn’t 3 too much,does it?

A: Well,in fact,when the tap is on,a 4 of water is disappearing.

B ： Is water really so 5 ?

A：Yes. Water is called liquid gold.

B：OK. I will not waste water any more in the future.

A: That’s great.

1.       2.       3.       4.       5.      

4. Trees begin to       green in spring.

   A. get   B. go   C. change   D. turn

3. —What will a science museum be like if you are asked to build one?

—I hope it will       like a book.

   A. taste   B. sound   C. look   D. smell

2. —Listen,they’re talking about their       again!

—Well,they hope it’ll prove their answer right.

   A. experiment   B. agreement

   C. development   D. environment

1. (2015 甘肃兰州中考) I paid ¥ 10 for       this morning.

   A. 4 bottle milks   B. 4 bottles of milk

   C. 4 bottles of milks   D. 4 milk

3. 1 don't believe his        (describe) of the woman.

4. Do you like doing        (experiment) ?

5. They are divided into small        (group) .

1 .He        (spread) his towel and cleaned his face.

2.        (final) he won the prize.

3. Students often do some       (实验) in their chemistry lessons.

4. You can       (搅拌) your tea and milk with this spoon.

5. The plane       (消失) behind a cloud just now.

I. If we       (加热) water,it turns into steam.

2. Water can become       (水蒸气) in hot weather.

5. 窗户看起来很怪。

The window             .