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hoanghuypham43
2 năm trước
Hấp thụ hoàn toàn 3,36 lít khí SO2 (đktc) bằng 120 ml dung dịch Ba(OH)2 1M. Sau phản ứng thu được m gam kết tủa. Tính giá trị của m?
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Ex1: Find the word which has different sound in the part underlined: 1. A. deposit B. compost C. crop D. florist 2. A. fabric B. canoe C. glassware D. magnificent Ex2: Find the word which has different stress pattern from the others: 3. A. emergency B. stretcher C. metal D. limestone 4. A. promise B. treatment C. import D. sunbathe 5. A. recognize B. institute C. fertilizer D. decompose Ex3: Choose the best answer for each question: 1. What can I get …………. you? – Thanks, I have to lift this table to the corner. A. on B. for C. at D. in 2. What is your address? – I live …….. Tran Quoc Toan street ……... Hoang Quoc Viet street. A. between/ and B. both/ and C. in/ at D. among/ and 3. Let’s ……… the patient’s feet or ………. His/her head below the level of heart. A. lower/ elevate B. push/ lower C. elevate/ lower D. pick/ get 4. We have to cure this cancer as soon as possible in order to ……….. its bad impacts on our health. A. maximize B. cut C. increase D. minimize 5. Thank you very much ………. your cooperation in this project. A. for B. because C. due to D. as 6. Which group do your clothes belong …………? – Fabric. A. on B. at C. to D. as 7. We can make vegetable matter ………… compost and fertilizer our field. A. to B. into C. in D. at 8. We should recycle all car tires, ……..…, glass and ………. to keep our environment clean. A. trees/ wood B. waste/ water C. newspaper/ compost D. bottles/ drink cans 9. The glass is broken into small pieces before being ……….. and …………. . A. washed/ melt B. to wash/ to melt C. washing/ melting D. used/ to melt 10. It is very dangerous for children …………... with matches. A. playing B. to play C. played D. be played Ex4: Put the verbs in brackets into the correct form: 1. If we (recycle) ……………… more, we will help the Earth. 2. If I (be) ……………….. you, I (do) ………………. that. 3. If people travel to work by bus, there (be) ………………… fewer car fumes. 4. We (save) ………………. thousands of trees if we don’t waste paper. 5. If we use water carefully, more people (have) ………………….. fresh water. Ex5: Rewrite these sentences: 1. The boy is talking to the teacher. He is our monitor. -> The boy ……………………………………………………………………………….…. 2. Smoking is very bad for your health. You shouldn’t do it anymore. -> I would rather ……………………………………………………………………………. 3. ‘’I am so thirsty. Can you give me a cup of cold water?’’ -> Would you mind …………………………………………………………………………. 4. People believe Linh’s brother to be the thief, but he isn’t and he hates it. -> Linh’s brother hates ……………………………………………………………………… 5. I would rather play sports than watch TV in the afternoon. -> I prefer ……………………………………………………………………………………. Help !!!

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