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ngocthomcc1
2 năm trước
Dot chay hoan toan 22,4 gam hon hop A ( gom Cu va Mg ) trong binh khi oxi, sau phan ung thu duoc hon hop B gom 2 oxit co khoi luong la 32 gam . Tinh the tich khi oxi phan ung o dktc ?
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Subject : English I. Choose the best answer A, B, C or D to complete each sentence. (3pts) 1. What is the main_______of visual pollution? - Because there are too many advertising billboards. A. effect B. affect C. result D. cause 2. Households________waste into the river so it is polluted. A. damage B. lead C. lose D. dump 3. If the factory ______ dumping poison into the lake, all the fish and other aquatic animals will die. A. continues B. to continue C. continued D. will continue 4. Water pollution is the ________________ in the lake has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 5. If I were you , I ______________ that car . A. would buy B. buy C. bought D. buying 6. If the factory continues dumping poison _______ the lake, all the fish and other aquatic animals will die. A. into B. to C. about D. in 7.The legendary monster of Loch Ness in Scotland …………millions of visitors A. attract B. attracts C. is attracting D. have attracted 8. People in countries like The USA, Great Britain, and New Zealand use English as their ..........language A. native B. official C . foreign D. second 9.Nick : Tom, we are going to China this summer and we’ll probably be walking along the Great Wall Tom : …………….. I’ve always wanted to do that A. Really B. Awesome C. Sure D. Boring, just boring 10. ……………..is both a country and a continent. A. America B. North Ireland C. Canada D. Australia 11. The USA ...................Thanksgiving Day since 1864 A. celebrates B. celebrated C. has celebrated D. is celebrating 12. ……………..was the first city in the world to have its own fire brigade . A. Scotland B. Edinburgh C. Great Britain D. London II. Word form: (2pts) 13. Do you know what_____________cause air pollution? POLLUTE 14. If we use water __________________ , more people will have fresh water. CARE 15. Are all types of pollution ____________________ to the health of humans and animals? HARM 16. The number of English speakers in the world ( increase )…………………….…..fast 17. Kilts is a traditional garment for (Scotland)...................................................men 18. Buckingham Palace is a major tourist (attract ).............................................. 19. This animal, kangaroo, is a (symbolize )........................................of Australia. 20. New Zealand is famous for the ( scenery )…………………..beauty of its mountains and forests III. Rewrite the sentences below without changing their original meaning. (2pts) 21. Leaves are damaged. The tree cannot get enough food energy to stay healthy. [because] ....................................................................................................................... 22. Light pollution happens. There is a change in animals’ living patterns. If ....................................................................................................................... IV. One of the four underlined parts each sentence is not correct in standard English. Identify them and correct them. (3pts) 23.If she had finished the work, she can go home. ........................................ 24.Unless there had been the heavy storm, the climbers will not have died. ........................................ 25.If I spoke more confident at the interview, they would have offered me the job.

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