1. If you go ___ doing that and you'll end ____ in serious trouble.

A.on - with. B.on - up. C.off - with. D.out - up

2. They arr trying to save the animals ____ extinction.

A.on. B.to. C.from. D.for

3. They didn't see each other again ___ the fall.

A.since. B.in. C.from. D.until

4.____ari is one of the many problems we have to solve

A.pure. B.polluted. C.fresh. D.pleasant

5. People have ___ this beach with a lot of trash

A.spoiled. B.cleaned. C.collected. D.pleasant

6. He got a ____ for parking on douple yellow lines.

A.fee. B.ticket. C.fine. D.token

7. By sticking labels over the address you can ___envelopes

A.recycle. B.reduce. C.reuse. D.return

8. Because placstic bags are very hard to ____, they will cause pollution.

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

9. These materials can be ___into other packaging products.

A.reused. B.reduced. C.removed. D.recycled

10. Crops are sprayed with ___ to kill insects.

A. Fertilizer. B.manune. C.dung. D.pesticide

11. If people ___ public transport, there will be less pollution.

A.use. B.will use. C.can use. D.used

12. ___we miss the last bus , we will have to walk home

A.as. B.when. C.if. D.unless

A.choose the wold that has the underlined part pronounced differently from the others

1. A.what b.who c.whose d.how

2. A.environment b.recycle c.dynamite d.littering

3. A.Provide b.fork c.faucet d.shore

4. A.wood b.school c.food d.truth

5. A.beach b.clean c.instead d.leave

B. Make an accent mark over the stressed syllable of these word.

environment Volunteer Garbage Deforestation

pesticide Pollution Recycle Dynamite

conservation Provide Treasure Valuable

disappointed Plastic Unpolluted Precious