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III. Choose the suitable words or phrases for the banks. 1……………….the dangerous acid rain, trees’ leaves are damaged. A.Since B.Because of C.Although D.In spite of 2.Don’t drink that water. It’s __________. A.damaged B.dumped C.contaminated 3.The team’s success was largely __________ to her efforts. A.because B.due C.since 4.I often drink coffee, but today I __________ tea. A.am drinking B.drink C.drank 5.By the time we got to the cinema, the film __________. A.started B.had started C.starting 6.All our English teachers are __________ speakers. A.native B.original C.foreign 7.If you __________ the president, what would you do to help the environment? A.are B.had been C.were 8.Eating too much sugar can __________ to health problems. A.cause B.lead C.make 9.Noise ……………causes a chang in animals’ living parttern. A. pollutant B.polluted C. pollution D.polluting 10.The heavy rain has caused __________ in many parts of the country. A.storms B.floods C.drought 11.What can be done to protect people from __________ disasters? A.environment B.environmental C.environmentally D.environmentalist 12.After I…………out with my friends,I finished my homework. A.had gone B.went C.have gone D.was going IV. Give the right form of the words in bracket.(1pt) 1.Many seabirds were……………..……because of the oil spill. ( die) 2.Waste from households will gradually…………………….the lake.(contamination) 3.Trees can’t grow here because the soil is too……………..……(pollute). 4.Scientists say that exhaust fumes are ………………….…….our city. (poison) V. Read the text and answer the questions. ( 2 points ) Smoke and waste chemicals are polluting the air and our environment. We are wasting too much power. Smokes from cars, buses, trucks and motorbikes are very harmful. We are producing too much trash. This is polluting the land, the rivers and the oceans, too. What should we do to protect our environment? We should save water and electricity . We shouldn't leave our trash in the country. We should collect used paper, bottles and cans. We can recycle them to save the natural resources. 1. Are smoke and waste chemicals polluting the air and our environment? _______________________________________________________________________ 2. Where do smokes come from? _______________________________________________________________________ 3. Should we save water and electricity? _______________________________________________________________________ 4. What can we do to save the natural resources? _______________________________________________________________________

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