Question

I.   Fill each blank with a word in the box.

using cars                  recycle        reusable      cutting down           plastic bottles

   Natural resources    trees            greener        health problems       oxygen

1.  If we                            waste paper, we will save a lot of trees.

2.  If we plant more trees, we will have more oxygen to breathe.

3.                         are becoming exhausted, so we should save them.

4.  We can recycle things like       plastic bottles and cans to protect the environment

5.  If we stop                                the trees, we can prevent floods and other natural disasters.

6.  If we breathe polluted air, we will have                                 .

7.  If people cycle to the office everyday instead of                               , we can keep air clean and fresh.

8.  If the soil is polluted, the                                will not grow well.

9.  If we use the                                     bags, we will save a lot of money.

10. If we plant many trees in the schoolyard, the school will be                place.

Answer 1

1. recycle

2. oxygen

3. Natural resources

4. plastic bottles

5. cutting down

6. health problems

7. using cars

8. trees

9. reusable

10. greener

Answer 2

1recycle

2oxygen

3Natural resources

4plastic bottles

5cutting down   

6health problems   

7using cars  

8trees     

9reusable  

10greener