I/ PRONUNCIATION 1/ A. shrine B. hike C. drip D. environment 2/ A. dump B. junkyard C. pollute D. unpolluted 3/ A. environment B. prevent C. effectively D. energy II/ PREPOSITIONS 1/ Billions of cans are thrown ________ every year all over the world. A. up B. away C. in D. on 2/ Why don’t you use public buses instead ________ motorbikes? A. of B. in C. off D. on 3/ Don’t throw trash ________ the water ? A. onto B. in C. into D. on 4/ Polluted water can directly do harm ________ people’s health. A. with B. to C. on D. for 5/ If we use much pesticide ________ vegetables, the vegetables will become poisonous and inedible. A. on B. with C. to D. for 6/ They have complained ______ local authorities about using dynamite to catch fish. A. with B. about C. to D. on III/ VOCABULARY AND GRAMMAR 1/ He is going to ………… all the bags. A. collector B. collect C. collection D. collective 2/ Don’t use plastic bags. They are very hard ……………….. A. to disappear B. to go away C. to dissolve D. to reduce 3/ The air in the city is very …………. A. pollute B. polluted C. pollution D. pollutant 4/ We are talking about the preservation of ……………. resources. A. nature B. natural C. naturally D. naturalize 5/ It is necessary …………. forests. A. to protect B .protecting C. protected D. protect 6/ The local authority should …………… the fish catching by electricity. A. allow B.permit C. prohibit D. give up 7/ These bags are made of ………………. You can use them to carry heavy things. A. paper B.silk C. plastic D. glass 8/ A large number of inhabitants have made ……… on how to protect the environment. A. suggest B. to suggest C. suggested D. suggestion 9/ The ………… of cars, motorbikes and factories has also increased air pollution in most cities. A. gas B. exhaust fume C. dirt D.dust