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2 năm trước
4. Giải thích một số hiên tượng có trong thực tế. b, Một số khu vực có nồng độ khí SO2 cao thường tạo hiện tượng mưa axit. Mưa axit làm hỏng các công trình xây dựng làm từ đá vôi (CaCO3), làm han rỉ cầu, phương tiện giao thông làm bằng kim loại (Fe). ……………………………………………………………………………………………………………………………………………………………………………………… ……………………………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………………………………………
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I. Fill in the blanks with the health problems in part I. 1. She feels very weak, has a high fever and her muscles hurt. She has __________. 2. He eats lots of junk food and be overweight. __________ is his problem. 3. She went outside all day long without wearing a hat. Now her skin turns red and hurts. She has got __________. 4. I think I’m getting a __________. I’ve got a sore throat and a runny nose. 5. Mark had lobster for dinner, and now his skin becomes covered with red marks. Hesays he has a shellfish . 6. If you’ve got __________, go and see a dentist. 7. His body is too hot and soaked in sweat, but he feels very cold. I think he has a __________. 8. My sister feels pain in her ear. She has __________. II. Complete the sentences with the correct form of the verb have or feel. Add a or an where necessary. 1. I __________ flu. I __________ tired and weak. 2. Jane __________ sick, so she stays at home today. 3. Maybe she __________ fever. Her face is red and she tells me that she __________ very hot. 4. I __________ terrible headache yesterday, but I __________ better now. 5. What’s wrong with Sarah? Does she __________ toothache? 6. ‘Have you ever __________ allergy to seafood?’ ‘Yes, I __________ ill when I ate some lobsters two months ago. 7. My friend __________ sunburn after a day at the beach. Her skin becomes red and sore. 8. I __________ itchy and I __________ runny nose. Do I __________ cold?

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