8. Beijing, the capital of China, is one of _______ cities in the world.

　A. the biggest　 　　　　　　　 B. bigger　

C. much bigger　 　　　　　　 D. big

7. Li Lei is always the first _______ to school.

　A. come　　 　　　　　　　　　 B. to come　

C. coming　　 　　　　　　　　　 D. comes

6. My teacher often asks us _______ English as _____ as possible.

　A. to speak, many　　 　　　 B. not to speak, more

　C. to speak, much　　 　　　 D. not to speak, much

5. We’ll go to visit Tian’anmen Square if it _____ tomorrow.

A. doesn’t rain　　 　　　　　 B. rains　　

C. won’t rain　　 　　　　　　　 D. rainy

4. We ___________ to clean the classroom.

A. by turns　 　　　　　　　　　　 B. take turns　

C. in turns　 　　　　　　　　　　 D. with turns

3. I can’t decide ________to buy this dress or not.

A. what　 　　　　　　　　　　　　 B. whether　 　

C. if　 　 　　　　　　　　　　　　　 D. how

2. They asked me ______ to make sentences with these words..

A. how　 　　　　　　　　　　　　 B. what　 　

C. where　 　　　　　　　　　　　　 D. whether.

1._____, I was walking along the road when I met Tom.

A. One day 　　　　　　　　　　　 B. Some day　

C. Someday　 　　　　　　　　　 D. Any day

Ⅳ.　 A plant makes its own food in its leaves. Water comes to the leaves through the roots(根). Air comes in through small holes in the leaves. The green color in the leaves uses the water and air to make food for the plant. It also needs sunshine because a plant can make food only when the sun is shining.

Animals and people can not live without green plants. They both eat plants. People and some animals also eat the meat of some animals, which also eat plants.

15. M: We all know air pollution. It is harmful to our health.

W: I think so. We must do something to stop it.　

Q: Does the woman want to protect the environment?