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phonqkelly
2 năm trước
Vẽ hình theo cách diễn đạt: - Vẽ đường thẳng a - Vẽ đường thẳng AB - Vẽ tia AB - Vẽ đường thẳng xy cắt đường thẳng x’y’ tại A - Vẽ điểm M là trung điểm của đoạn thẳng AB - Vẽ 2 đoạn thẳng AB và CD cắt nhau tại điểm I là trung điểm của mỗi đoạnthẳng. Mn giúp tôi làm bài này mới ạ.
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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. Question 17. Pollution is caused from the following sources except A: water from households B: wastes C: water in rivers D: house chemicals

In this section you must choose the word or phrase which best completes each sentence. Circle the letter A, B, C or D against the number of each item 1-20 for the word or phrase you choose. (20 points) 1. My sister is very fond .................... chocolate candy. A. of                  B. about               C. with              D. at 2. I have studied English ....................eight months. A. for                  B. since               C. by               D. in 3. Listen ....................our teacher ! A. with                 B. to                  C. for               D. in 4. There isn’t ....................food in the house. A. none                B. no                  C. some             D. any 5. He arrives …………………..at six o’clock. A. at home             B. home               C. in home           D. to home 6. Herbert has had his car………………….. 1999. A. ago                 B. since                C. to               D. for 7. How long will it ....................to get there ? A. cost                 B. lose                 C. make            D. take 8. I ....................it to you if you don’t have one. A. give                B. gave                C. will give           D. would give 9. ....................your homework yet ? A. Did you finished       B. Are you finishing       C. Do you finish       D. Have you finished 10. It’s the best book I …………………..read. A. have ever            B. had ever             C. will ever           D. can ever 11. He looked very..................when I told him the news. A. happily              B. happy                C. happiness         D. was happy 12. She is ..................in history. A. interests             B. interested             C. interesting         D. being interest 13. Is the Eiffel Tower taller....................Big Ben ? A. then                B. than                 C. as                D. of 14. At school, David was..................anyone else in his class. A. as clever as          B. as clever than          C. cleverer as        D. cleverest 15. She speaks French ....................than you. A. more faster          B. more fluently           C. well              D. the most fluently 16. It began to rain while we…………………..soundly. A. slept               B. were sleeping          C. have slept          D. are sleeping 17. She doesn’t like coffee, does she ? A. Yes, she doesn’t      B. No, she does           C. Yes, she did       D. No, she doesn’t 18. I won't go to bed …………………..I finish my homework. A. until               B. when                C. while              D. since 19. Is this book ………………….. ? Yes, it's mine. A. you're              B. yours                C. you               D. your 20. …………………..do you come to school ? By bus A. How               B. What                 C. By                D. When

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