1. Think of all the things you throw away: juice bottles, soft drink cans, candy wrappers. It adds up. (1) How much trash do you produce? Americans throw away an average of one ton of trash per person (2) every year. Most of this trash gets buried (3) in big holes in the ground called landfills. A lot of this garbage can be recycled, or turn back (4) into something useful. Just about any material can be recycle. The main things we recycle today are (5)made from metal, paper, glass, or plastic. People recycle for many reasons. One of the (6) main reasons is to conserve resources. Making new alumium cans out of old one means less aluminium is needed (7) for new cansThis lesds to a second reason people recycle: It saves energy. Recycling old aluminium cans takes a lot (8) less energy than making new aluminium. To make new aluminium you (9) need to mine metal one from the ground, remove the impurities, and refine in into a finished metal. Recycling also conserves valuable land. (10) By recycling, we produce less garbage. That means fewer landfill are needed of dumping our trash.

2. Nowadays, people use a lot of plastic bags and they often (1) throw away/ bury the bags afterwards. They don't often (2) pollute/ reuse or (3) waste/ recycle them. When we (4) destroy/ reuse plastic, we pollute the lands or air. It isn't a good idea to (5) burn/ poison plastic because it (6) poisons/ saves the atmosphere. The alternative is to (7) bury/ pollute it, but some plastic doesn't decompose for over a thousand years.

8. Do you throw away or reuse plastic bags?

⇒I reuse plastic bags

9. What do you and your school do with rubbish?

⇒Sometimes, we reuse them

10. What things are harmful to the environment in your area?

⇒They are rubbish, pesticide, herbicide,...

3. 

1. A. one B. ones C. among  D. those

2. A. most B. mostly C. almost D. about

3. A. takes  B. makes C. occupies D. plays

1

(1) How 

(2) every

(3) in

(4) into

(5)made

(6) main

(7) for

(8) less

(9) need 

(10) By

2

Nowadays, people use a lot of plastic bags and they often (1) throw away/ bury the bags afterwards. They don't often (2) pollute/ reuse or (3) waste/ recycle them. When we (4) destroy/ reuse plastic, we pollute the lands or air. It isn't a good idea to (5) burn/ poison plastic because it (6) poisons/ saves the atmosphere. The alternative is to (7) bury/ pollute it, but some plastic doesn't decompose for over a thousand years.

8. Do you throw away or reuse plastic bags?

⇒I reuse plastic bags

9. What do you and your school do with rubbish?

⇒Sometimes, we reuse them

10. What things are harmful to the environment in your area?

⇒They are rubbish, pesticide, herbicide,...

3. 

1. A. one 

2.C. almost 

3.D. plays