8.---____ did this forest fire happen?

　　 --- No one knows. Maybe it ____by the dry weather.

A. How; was caused　 B. When; is caused　

C. How; is caused　 　D. When; was caused

7.--- How can we protect our city?

--- _____ protect our city, we ____ become green consumers..

A. In order of; should　 B. In order to; can’t　

C. In order to; should　 D. In order of; can’t

6.---I will go on vacation in the UK.

---The UK is a beautiful country. _____, you will have a wonderful trip.

A. That is　 B. This is　 C. In total　 D. For example

5.Dora is _____ younger than her friends, but she often ____ the oldest one..

　　 A. too; acts like　 B. much; works as　 C. too; works as　 D. much; acts like

4.---He is ______ using “environmentally friendly” things.

　　 --- That’s true. He does a lot of things to protect the environment.

　 　A. in order of　 B. in trouble with　 C. in the form of　 D. in the habit of

3.---The ____ nearly drowned that area.

--- Yes. It was caused by the typhoon and made the water level ____ suddenly.

A. flood; rise　 B. wind; rise　 C. flood; to rise　　 D. wind; to rise.

2.---Why should I wear thick clothes today, Mum?　　

---________________________.

　 　A. Because you look nice　　 B. Yes, you should　

C.Because it’s cold outside　 D.I don’t think so

1. ---The water isn’t clean and the air isn’t fresh any more.

　　 ---I agree. The _____ has been awfully polluted.

　 　A. atmosphere　 B. environment　 C. sunlight　 D. land