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Hoàn thành chuỗi phản ứng sau MnO2=> Cl2 => HCl => CaCl2 => AgCl
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Test 45 9/5 1. What will happen if the pollution.............. on? * 2 điểm A. puts B. goes C. takes D. keeps 2. You should................... the amount of water your family uses by.............. shower. * 2 điểm A. reduce - using B. increase - using C. reduce - use D. increase - use 3. Everyone was frightened when the bomb.................. . * 2 điểm A. went off B. went out C. went away D. went in 4. ............. are used to kill insect and weeds so as to help crops grow better. * 2 điểm A. Pesticides B. Dynamic C. Treasures D. Creatures 5. I fell and hurt myself................. I was playing tennis. * 2 điểm A. while B. during C. if D. because 6. That seaside resort is always full.................. trash. * 2 điểm A. with B. in C. of D. because 7. Oh dear! How................ our household bills are! We can't pay them. * 2 điểm A. heavy B. enormous C. small D. low 8. Lan spoke English.............. after she lived in England for several months. * 2 điểm A. nature B. natural C. naturally D. unnaturally 9. She suggested............. money for the poor in the region. * 2 điểm A. to save B. save C. to saving D. saving 10. ............. air is one of the problems we have to solve. 2 điểm A. Pure B. Polluted C. Dust D. Pleasant 11. What does this picture say? * 2 điểm Hình ảnh không có chú thích A. We must save money in the water pipes B. We must turn on the faucet to earn money C. We must save the water we use everyday D. We must spend much money on running water 12. What will happen to you if you don't wear face mask in public? 2 điểm Hình ảnh không có chú thích A. You'll be fined B. You'll be awarded a stool C. You will be offered a hat D. You'll be given a rod 13. A lot of houses in European countries will be...........by solar energy. (hot) * 2 điểm 14. If we go on.................... the air, we will cope with respiratory problems. (pollute) * 2 điểm 15. The volunteer.................. are cleaning up the beach. (enviroment) * 2 điểm 16. There are a lot of............... in teaching, which helps teachers work better. (innovate) * 2 điểm 17. Electricity................always increase in the summer. (consume) * 2 điểm 18. ................, it is English that helps you apply for a good job (ultimate) * 2 điểm Dear Mr. President, I am writing to you about the problems of fish-catching in the lake behind my house. What makes me worried ___(1)___ is that they use electricity to catch fish. A lot of small fish died and floated on the water surface. __(2)__, other animals such as frogs, toads and even birds also __(3)__ from electric shock waves. I would suggest that the local authorities __(4)__ fine heavily anyone __(5)__ fish in this way. I am looking __(6)__ to hearing and seeing good responses from you. Yours faithfully, 19. What is the word in (1)? * 2 điểm A. little B. most C. many D. a few 20. What is the word in (2) ? * 2 điểm A. However B. Besides C. Therefore D. Although 21. What is the word in (3) ? * 2 điểm A. pass B. die C. killed D. murdered 22. what is the word in (4) ? * 2 điểm A. must B. should C. could D. would 23. what is the word in (5) ? * 2 điểm A. to catch B. catching C. to arrest D. arresting 24. What is the word in (6) ? * 2 điểm A. for B. forward C. after D. up Air pollution is by far the most harmful form of pollution in our environment. Air pollution is caused by the injurious smoke emitted by cars, buses, trucks, trains, and factories. Even smoke from burning leaves and cigarettes are harmful to the environment causing a lot of damage to man and the atmosphere. Evidence of increasing air pollution is seen in lung cancer. Water pollution caused by industrial waste products released into lakes, rivers, and other water bodies, has made marine life no longer hospitable. Humans pollute water with large scale disposal of garbage and other household waste. In many "rural areas", one can still find people bathing and cooking in the same water, making it incredibly filthy. Noise pollution, soil pollution and light pollution are also damaging the environment at an alarming rate. Noise pollution includes aircraft noise, noise of cars, buses, trucks, vehicle horns, loud speakers, and industry noise which are extremely harmful to the environment. 25. The passage mentions three kinds of pollution. * 2 điểm True False 26. Lung cancer is a result of air pollution * 2 điểm True False 27. Only waste product in industry make water polluted * 2 điểm True False 28. The noise from the factories also do harm to the environment * 2 điểm True False 29. It is........... that increasing air pollution is the cause of lung cancer. 2 điểm A. rumored B. thought C. proved D. said 30. The phrase "rural areas" in the passage means.............. 2 điểm A. inside the city B. the neighborhood C. downtown D. the countryside 31. economically / energy / and / spend / your / should / money / as / You / possible / as / on / . / -> you should * 2 điểm *

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