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ntqyn01
2 năm trước
Cho tam giác ABC, trên AC lấy 2 điểm M và N sao cho AM= MN= NC. Trên BC lấy điểm P sao cho BP= 2 lần Pc. Biết diện tích tam giác NPC là 2 cm- vuông. Tính S của tam giác ABC
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mình cảm ơn trc ạ I. Choose the word that has the underlineddifferently from the others. 1. a. bag b. sandal c. waste d. matter 2. a. mix b. pipe c. deposit d. refill 3. a. lung b. difflcult c. natural d. mixture 4. a. reader b. heavy c. clean d. mean 5. a. reused b. returned c. mashed d. cleaned II. Choose the word or phrase that best completes each unfinished sentence below or substitutes for the underlined word or phrase. 6. In 1876, the telephone ______ first introduced by Bell and Watson. a. was b. is c. has been d. had been 7. It's important ______wildlife in the area. a. to conserve b. conserving c. conservation d. conserve 8. Japan _____ 40% of its waste. a. reuses b. recycles c. refill d. broken 9. We were delighted_____your letter yesterday. a. to get b. got c. getting d. get 10. Sooner or later a satellite _______ by a large piece of rubbish. a. will destroy b. will destroyed c. will be destroyed d. will been destroyed 11. Let's play tennis instead of _____ television. a. watch b. watching c. watches d. to watch 12. Everything depends on what you mean____the word "free". a. about b. by c. of d. for 13. We should use______bags instead of plastic bags. a. cloth b. clothe c. clothed d. clothing 14. Beer_____for breakfast in England years ago. a. used be drunk b. used to be drunk c. used to drunk d. used to be drank 15. I____some rice on the floor of the chicken coop. a. scattered b. grew c. threw away d. raised III. Read the following passage and choose the item (a, b, c, or d) that best answers each of the questions about it. Just a few years ago, this place was called Dumptown. The people living here didn't think much about where waste went when they threw it out. Things that could be reused or recycled were thrown in the trash, because nobody believed recycling made a difference. And, eventually, that became a very big problem. The garbage heap grew and began to smell. Sometimes it caught fire, and making it hard for everyone to breathe. Dumptowners knew they had to fix it. They learned to reduce the amount of waste they threw away. For example, they learned to reuse things—like washing out empty jars in - stead of throwing them away. And, they learned to recycle. They set up bins around town to collect glass, paper, and other things, then made into new products. 16. The people living in Dumptown_______. a. didn't think much about where the waste went b. threw things that could be reused or recycled into the trash c. didn't believe that recycling could make a difference d. all are correct 17. Which of the following could replace the word 'trash' in line 3? a. garbage b. rubbish c. compost d. a & b 18. What were the Dumptown's problems? a. The garbage heap smelled. b. Sometimes the garbage heap caught fire. c. It was hard for everyone to breathe. d. all are correct 19. What does the word 'them' in line 11 refer to? a. the trash b. the garbage heap c. Dumptowners d. empty jars' 20. What did they do to solve their problems? a. They reduced the amount of waste they threw away. b. They learnt to reuse things. c. They learnt to recycle. d. all are correct

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