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lamnhoctyh
2 năm trước
Cọ xát thanh thước nhựa với mảnh vải khô, sau khi cọ xát đưa thanh thước nhựa lại vụn giấy a)Trước khi cọ xát thước nhựa có hút vụn giấy không? Vì sao? b)Sau khi cọ xát thước nhựa nhiễm điện âm, vậy thước nhựa nhận thêm hay mất bớt electron?
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EX3: Đọcđoạnvănrồikhoanhtrònvàođápánđúngnhất chon hữngcâuhỏiphíadưới. Rebecca Stevens was the first woman to climb Mount Everest. Before she went up the highest mountain in the world, she was a journalist and lived in South London. In 1993, Rebecca left her job and her family and travelled to Asia with some other climbers. She found that life on Everest is very difficult. “You must carry everything on your back,” she explained, “so you can only take things that you will need. You can’t wash on the mountain, and in the end I didn’t even take a toothbrush. I am usually a clean person but there is no water, only snow. Water is very heavy so you only take enough to drink!” Rebecca became famous when she reached the top of Mount Everest on May 17, 1993. After that, she wrote a book about the trip and people often asked her to talk about it. She got a new job too, on a science programme on television. 1.Where was Rebecca Stevens from? A.EnglandB.AsiaC.EverestD.The South 2.Before she climbed Everest, Rebecca Stevens was a ___________. A.climberB.journalistC.travellerD.scientist 3.Why did Rebecca Stevens become famous? A.She left her job and her family and travelled to Asia. B.She found that life on Everest is very difficult. C.She reached the top of Mount Everest in 1993. D.She was the first woman to climb Mount Everest. 4. Life on Everest is very difficult because ___________. A.it is very high C.there is no water there B.you can’t take things with you D.there are no toothbrushes 5.After 1993, Rebecca had a ___________. A.new bookB.new jobC.programmeD.television IV. Viếtmộtđoạnvănvềmộtngườichơithểthaonổitiếngmàbạnbiêt( khoảng 60-80 từ) You should use the cues given ( Bạndùngnhữnggợi ý sau) - His/her name - Time when he/she was born - Sport(s) he/she played - Things he/she achieved

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