1. (2015 江蘇鎮(zhèn)江中考) Ma Yun,the Chairperson of Alibaba Group,has made much money       the Internet.

   A. through   B. along   C. across   D. towards

3. You should remember        (lock) the door after class.

4. Water is important and        (value) ，so we shouldn’t waste it.

5. We should fight against the air        (pollute) .

1. Trees can produce various        ( chemical) to protect themselves.

2. The joke made us        (laugh) and we were happy.

5. You can’t use the swimming       (水池) today.

3. They often do some       (實(shí)驗(yàn)) in chemistry lessons.

4. The river       (上漲) after the heavy rain.

1. Swimming can       (鍛煉) your whole body.

2. What       (覆蓋) three quarters of our Earth?

5. 我讓浴室的水龍頭開著。

I                           in the bathroom.

4. 到人們凈化我的時(shí)候了。

It is       for people             me.

3. 他從浴室里出來(lái)。

He                    the bathroom.

2. 他環(huán)顧四周，但那兒沒人。

He             ,but there was                    .