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hoanghuongkinhoto
2 năm trước
em hãy giải thích vì sao người ta thường thả quả bóng bàn bị móp nhưng chưa bị vỡ (chưa bị thủng) vào nước nóng để nó lại phồng lên
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Everyone wants to reduce pollution. But pollution problem is as complicated as it is serious. It is complicated because much pollution is caused by things that benefit people. For example, exhaust from automobiles causes a large percentage of all air pollution. But automobiles provide transportation for millions of people. Factories discharge much of the material which pollutes the air and water, but factories give jobs to a large number of people. Too much fertilizer or pesticide can ruin soil, but fertilizers and pesticide are important aids to the growing of crops. Thus, to end or reduce pollution immediately, people would have to stop using many things that benefit them. Most people do not want to do that, of course. But pollution can be gradually reduced in several ways. 28. What problem is complicated as it is serious? 1 điểm A. pesticide B. crop C. pollution D. factory 29. Exhaust from automobiles causes _______. 1 điểm A. air pollution B. noise pollution C. water pollution D. light pollution 30. Discharge from factories pollutes _______. 1 điểm A. fertilizer and crop B. factory and transportation C. soil and crop D. air and water 31. What does the word “pesticide” mean? 1 điểm A. a metal container B. chemical used for killing pests C. any substance like air D. a cold drink 32. The word “several” can best be replaced by ________. 1 điểm A. some B. any C. few D. little

Task 1. Choose the word which has the underlined part is pronounced differently from the others. 1. a. earth b. thanks c. feather d. theater 2. a. the b. their c. with d. thin 3. a. thirty b. theme c. both d. them 4. a. brother b. weather c. through d. than 5. a. gather b. bathe c. birthday d. weather Task 2. Put the correct form of the verbs in the brackets. 1. She ……….………. (go) to Australia in 1994 and she liked it very much. 2. My father usually……….………. (like) his steak well-done. 3. The dog ……….………. (eat) its toy last night. 4. The policeman ……….………. (talk) to the burglar yesterday. 5.……….………………..…. (you/have) a test last week? 6. I often see her mother but she never ……….………. (speak) to me. 7. The gentleman ……….……………. (speak) to his servant 2 hours ago. 8. Mrs.Trang (teach) ……….………….…. us English last year. 9. My friend ………..….………. (talk) a lot everyday. 10. The man ……….……………. (drive) to the supermarket last weekend. Task 3. Write questions of the phrases underlined below. 1. Minh usually does morning exercise after getting up. ........................................................................................................................................... 2. I brush my teeth twice a day. ........................................................................................................................................ 3. Nga has an appointment at 10.30 this morning. .... ........................................................................................................................................ 4. I like music programme . ......................................................................................................................................... 5. I can find the answer to the quiz by searching it on Google Search. ........................................................................................................................................

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