4. 我认为五十年后将有更多的污染。

I think  in fifty years.

3. 当不用电脑时，关掉电源。

 when the computer is not used.

2. 每个人都能对地球产生大的影响。

Everyone can   to the earth.

1. 虽然你很年轻，但也能做一些事情帮助减少污染。

Although you are very young,you can do something to help .

() 6. (2015 •雅安) Trees  on both sides of the road next year.

   A. will plant   B. will be planted   C. are going to plant   D. are planted

() 5. When an earthquake happens and you are outdoors,you should go to an open area as  as

possible.

   A. quickly   B. quietly   C. loudly   D. slowly

() 4. Do you know when the first train  in China?

   A. was produced   B. is produced   C. produced   D. was producing

() 3. (2015 •东营) Drinking alcohol (白酒) can be  your brains. So people in China aren’t  allowed to drink it if they are younger than 18.

   A. good at   B. good with   C. harmful to   D. thirsty for

() 2. Some people ride bikes to work to reduce  pollution.

   A. water   B. air   C. soil   D. white

() 1. You can  the lights to find the small needle.

   A. turn up   B. turn down   C. turn off   D. turn on