II. Choose the correct answers A, B, C, or D to finish the sentences.

1.  If you press the button, what ____________?

      A.  would happen           B.  happens                          C. will happen                      D. happen

2. If I ____________ time, I ____________ you with planting that tree.

      A.  had - helped             B.  will have – will help       C. have – will help               D. have – don’t help

3. We can reuse things like____________.

      A. envelopes                  B. plastic bottles                  C. cloth bags                        D. glasses

4. People throw away millions of____________ every year.

      A. old car tires               B. drink cans                        C. old newspapers                D. household wastes

5. Will you____________ please?

      A. open the garbage can                                             B. hang the clothes             

      C. empty the dustbin                                                   D. collect the bottles

6. Billions of____________ are thrown away every year all over the world.

      A. cans                           B. bottles                              C. cups                                 D. glasses

7. Things like____________ can be reused.

      A. plastic bags               B. fabrics                              C. paper toys                        D. envelopes

8. We can recycle old, clothes and make them into____________.

      A. compost                     B. leather                              C. shopping bags                 D. jogging shoes

9. If you go out with your friends tonight, I ____________ the film on TV.

      A.  watch                       B.  watched                          C. am watching                    D. will watch

10. If she ____________, we will miss the bus.

      A. not hurries                 B. doesn’t hurry                   C. won’t hurry                     D. don’t hurry

11.  I __________ to London if I don’t get a cheap flight.

      A.  will drive                  B.  won’t drive                     C. drive                                D. don’t drive

12. Don't throw that old____________ away. We can decorate it to make a flower vase.

      A. can                             B. glass                                C. bottle                               D. paper

13. I think you should____________ to save water.

      A. have a bath                B. go swimming                   C. heat water                        D. have a shower

14. We should____________ to prevent pollution.

      A. use reusable bags      B. plant more trees               C. turn off the lights             D. save electricity

15. We will buy____________ for our class

      A. water bottles              B. recycling bins                  C. energy-saving lights        D. refillable pencils

16. If we plant more trees in the schoolyard, the school will become a ____________ place.

      A. darker                        B. dirtier                               C. greener                             D. more polluted

17. If we all use ____________ bags, we will help the environment.

      A. new                           B. cheap                               C. reusable                           D. reduced

18. Plastics, glasses and chemicals underground are harmful ____________ plants and animals.

      A. to                               B. of                                     C. in                                     D. at

19. These three Rs ____________ reduce, reuse, and recycle.

      A. stand up                     B. stand for                          C. ask for                             D. means

20. Because plastics bags are very hard to ____________, they will cause pollution.

      A. dissolve                     B. wrap                                C. tear                                  D. collect

2. Recycling is very good for the environment. For example, we make paper (1) _______ trees. If we recycle old paper, we will (2) _______ many trees. Recycling uses less energy and helps control pollution.

There are three steps for recycling: (3) _______ sorting and processing. We can recycle a lot of things such as newspapers, magazines, books, cans, etc. Plastic is also a common recyclable product. We can recycle plastic bottles, plastic bags and many (4) _______ items. We can recycle glass, too. Jars, broken pieces of glass and other glass products can be recycled.

Put (5) _______ bins around the house and in the neighbourhood, and we can have things to recycle.

1.   A. from                          B. on                                    C. in                                     D. at

2.   A. cut                             B. get                                    C. save                                 D. have

3.   A. marking                     B. doing                               C. buying                             D. collecting

4.   A. good                         B. another                              C. other                                D. others

5.   A. recycle                      B. recycled                           C. recycling                          D. recyclable

I. Read the following passage and circle the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbers blanks.

1. There are several types of pollution. However, (1) _______ is the most serious in our area. It is caused by several factors. Firstly, families dump sewage into the river. Secondly, there are two new factories in our area, and they are dumping chemical waste into the lake and river. Thirdly, pesticides are another source of pollution. Farmers in our area usually use these to kill insects. We do not (2) _______ enough fresh water to water the plants and crops. People cannot (3_______ in the river and the lake (4) _______ the water there is so polluted. Another negative effect is that sometimes in the afternoon there is bad smell from the polluted river, so people do not enjoy (5) _______ along it anymore.

1.   A. water pollution          B. noise pollution                 C. air pollution                     D. light pollution

2.   A. bring                          B. eat                                    C. have                                 D. make

3.   A. raise fish                    B. raising fish                       C. to raise fish                      D. raises

4.   A. but                             B. because                            C. therefore                          D. so

5.   A. singing                       B. buying                             C. teaching                           D. walking

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