一、词汇运用
1. Sadly, the soil of the farm is (污染) by the use of harmful chemicals.
2. (沙漠化) has become a serious problem in many dry areas of the world.
3. We should use fewer (供一次使用的) plastic products to protect the earth.
4. These green (海报) tell people to protect our rivers and forests.
5. Cars give off lots of harmful (气体) that are bad for our health.
6. We have already (投票) for Tom to host our evening party this weekend.
7. The loud (cough) in the library made other people look around quickly.
8. All of us should pay more attention to the (environment) problem.
9. The international (agree) was signed to protect the earth's natural resources.
10. Our class group activity this week is (affect) by the bad weather.

1. polluted 2. Desertification 3. single-use 4. posters 5. gases
6. voted 7. coughing 8. environmental 9. agreement 10. affected

二、单项选择
() 1. the United Nations, nearly 20% of the world's land has become desert-like because of human activities.

A.As for
B.Thanks to
C.Because of
D.According to

1.D

() 2. Moon cakes for free to the old people this coming Mid-Autumn Festival.

A.were offered
B.will offer
C.have offered
D.will be offered

2.D

() 3. It was very early in the morning, so we could see any cars on the street.

A.hardly
B.mostly
C.completely
D.certainly

3.A

() 4. Take some action, and you can the earth.

A.do a big difference on
B.make a big difference to
C.do a big difference to
D.make a big difference on

4.B

() 5. — When can we have dinner, Mum? — Not until it in an hour.

A.is prepared
B.will be prepared
C.has been prepared
D.was prepared

5.A

() 6. — What do you want to eat for lunch? I will prepare earlier today. — Honey, you . Let's go out to have something different.

A.mustn't
B.can't
C.shouldn't
D.don't have to

6.D

三、综合填空
June 5 is World Environment Day. Wang Boxuan wants to know more about the environment. He finds paper is wasted (1) (wide), especially in high schools. So he joins in an activity to keep the environment (2) pollution.
When he (3) (finish) using his exercise books, he will collect them together and sell them to a paper-making factory. Wang Boxuan calls on more students to take part in (4) environmental protection activity. So far, 210,000 students have been members of the (5) (mean) activity. Last year, more than 87 tons of paper (6) (sell). This is a huge number that comes from their efforts. The money made from the sales will be used (7) (plant) trees and grass. It's a green way to turn waste into something helpful for the earth. He hopes more young people can join hands to protect the environment and develop a good habit of (8) (recycle) waste.
In this way, we can make a (9) (different) to the earth! It's everyone's duty to protect the environment, and small daily acts (10) (build) a greener world for our future life. Let's take action together and keep our planet clean and beautiful forever!

1. widely 2. from 3. finishes 4. the 5. meaningful
6. was sold 7. to plant 8. recycling 9. difference 10. will build