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II. Choose the word which has a different stress pattern from the others. 1. A.terrific B.Arabic C.statistic D.cosmetic 2. A.arithmetic B.geographic C.energetic D.economic 3. A.linguistic B.classical C.phonetic D.romantic 4. A.fantastic B.historic C.comic D.symbolic 5. A.oceanic B.specific C.ceramic D.aquatic Làm hộ mình nhé
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XII. Read the passage, and choose the correct answer A, B, C or D for each question. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. 1. Pollution is caused from the following sources except . A. water in rivers B. water from households C. wastes D. house chemicals 2. Recycling can help us . A. never cut down trees B. produce more paper products C. place garbage bins easily D. use products again and again 3. In order to save water, we can do all of the following things except . A. fully use the washing machine B. repair leaky faucets C. take short showers instead of baths D. turn the faucet off while brushing your teeth 4. Recycling helps to reduce waste because . A. plants need to develop B. waste can be recycled and reused C. a person can do it in his home D. an average man produces compost for plants 5. The word “It” in paragraph 2 refers to . A. cutting down B. the number C. recycling D. effort

VIII. Fill in each blank with the correct preposition. 1. Land pollution is responsible for damage done natural habitat of animals. 2. Americans throw twenty-eight and a half million tons of plastic in landfills every year. 3. Scientists have come up new ways of saving energy. 4. Thousands of people were exposed radiation when the nuclear plant exploded. 5. Waste water from many factories which is dumped water bodies directly causes water pollution. IX. Read the passage and complete the sentences. True (T) or false (F). Air pollution is a serious problem in many cities. Motor vehicles, factories and other sources create so much air pollution that it may hang in the air like dirty fog. Air pollution threatens the health of the people who live in cities. City wastes cause water pollution when they are poured into the waterways. These wastes kill fish and make some areas unfit for swimming. In addition, many large cities have difficulties in disposing of their garbage. The amount of garbage grows each year, but places to put it are quickly filling up. Citizens, governments, industries, scientists, and business people must work together in different ways to gradually reduce pollution. For example, most cities have introduced recycling programmes. ¨ 1. Motor vehicles and factories are among some sources of air pollution. ¨ 2. Air pollution doesn’t endanger people’s health in some cities. ¨ 3. Air pollution is the only problem of the environment mentioned in this passage. ¨ 4. Garbage disposal is a problem in many large cities. ¨ 5. Everyone must cooperate to reduce pollution. ¨ 6. We can reduce pollution by recycling programmes only. X. Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage. Light pollution is not (1) serious as water or air pollution. (2) , it is the type of pollution that (3) more in cities than in rural areas. In the past, we could sit out at night and (4) at glittering stars in the sky and light from objects in the outer space. Nowadays, cities are covered with lights from buildings, streets, advertising displays, many of which direct the lights up into the sky and into many unwanted places. The real problem is that it is very (5) to apply light to almost everything at night. Millions of tons of oil and coal (6) to produce the power to light the sky. Eye strain, (7) of vision and stress are what people may get from light pollution. (8) light at night can harm our eyes and also harm the hormones that help us to see things properly. 1. A. as B. more C. much D. only 2. A. Moreover B. However C. Therefore D. Nevertheless 3. A. happen B. occur C. occurs D. is occurred 4. A. watch B. see C. spend D. gaze 5. A. waste B. wasteful C. wasting D. wastes 6. A. used B. using C. is used D. are used 7. A. lose B. lost C. loss D. losing 8. A. Very much B. Too much C. Too many D. So many XI. Read the following passage and then answer the questions below it. Air pollution is a cause of ill-health in human beings. In a lot of countries there are laws limiting the amount of smoke which factories can produce. Although there isn’t enough information on the effects of smoke in the atmosphere, doctors have proved that air pollution causes lung diseases. The gases from the exhausts of cars have also increased air pollution in most cities. The lead in petrol produces a poisonous gas which often collects in busy streets surrounded by high buildings. Children who live in areas where there is a lot of lead in the atmosphere cannot think as quickly as other children and they are clumsy when they use their hands. There are other long-term effects of pollution. If the gases in the atmosphere continue to increase, the earth’s climate may become warmer. A lot of the ice near the Poles may melt and may cause serious floods. 1. What can make people sick? 2. Where does smoke come from? 3. Can air pollution cause lung diseases? 4. What else can cause air pollution in cities? 5. Why does the earth’s climate become warmer? Làm hộ mình 3 bài này nhé

Bài 5. a) 12 công nhân trong một ngày dệt được 120 tá áo. Hỏi với mức làm như vậy, muốn dệt 180 tá áo như thế trong một ngày cần bao nhiêu công nhân? b) Một công nhân đóng gói 19 sản phẩm hết 25 phút. Hỏi trong một ca làm việc (8 giờ) người đó đóng gói được tất cả bao nhiêu sản phẩm? Bài 6. Tổ thợ mộc 3 người trong 5 ngày đóng được 75 bộ bàn ghế. Hỏi với mức ấy, tổ thợ mộc có 5 người trong 7 ngày đóng được bao nhiêu bộ bàn ghế? Bài 7. Cho hai số có trung bình cộng là 25. Số thứ nhất gấp 4 lần số thứ hai. Tìm hai số đó. Bài 8. Hai tấm vải dài 124m. Hỏi mỗi tấm vải dài bao nhiêu mét? Biết rằng tấm vải thứ nhất dài hơn tấm vải thứ hai 18m. Làm hộ tớ mấy bài này

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