I. Circle the best answer A, B, C or D to complete each sentence. 1. Choose the word that has the underlined part pronounced differently from the others A. buffalo B. photo C. limestone D. botanical 2. Choose the words that have the different stress from the others. A. affect B. billboard C. visual D. substance 3. Water…………………. in the lake has made the fish die. A. pollution B. pollute C. polluted D. polluting 4. If you can give me one good reason for your acting like this,………………………thisincident again. A. I will never mention B. I never mention C.will I never mention D. I don’t mention 5. Unless you ……………………… all of my questions, I can’t do anything to help you. A. answered B. answer C.would answer D. are answering 6.If someone………………into the store, smile and say, “May I help you?” A. comes B.came C.come D. should come 7. “Here’s my phone number”. “Thanks. I’ll give you a call if I……………………some help tomorrow” A. will need B. need C.would need D. needed 8.If I didn’t work for an accounting firm, I…………………in a bank now. A. work B.will work C. have worked D. would work 9.Too much use of.......................lights in cities may cause light pollution. A. traffic B. aquatic C. sigh D. electric 10. If the factory continues ………………… poison into the lake, all the fish and other aquatic animals will die. A. dumped B. to dump C. dump D. dumping 11.If she…………………him, she would be very happy. A. would meet B. will meet C. met D. should meet 12. If I had enough money, I…………….abroad to improve my English. A. will go B. would go C. went D. should have go to 13.Households dump waste ...............the river, so it is polluted A. down B. on C. in D. into 14. Students are more aware .................protecting the environment. A. to B. in C. of D. with 15. .......................from households is another cause leads to water pollution. A. Sewage B. Herbicides C. radioactive D. thermal B. WRITING I. Rewrite the following sentences, using the words in brackets. 1. Dumping solid wastes in rivers, lakes and oceans causes water pollution. (result in) →…………………………………………………………………………………………………………….. 2. Global warming makes water temperature go up. [due to) →Water temperature……………………………………………………………………………………. II. Rewrite the following sentences, using conditional sentences Type 1 or 2 1.People throw rubbish in the street.The street doesn’t look attractive. →…………………………………………………………………………………………………………….. I’ll probably get lost unless he comes with me. →……………………………………………………………………………………………………………..