2013北师大版高二下Unit21《Human-Biology》(Lesson-1)课件.pptVIP

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2013北师大版高二下Unit21《Human-Biology》(Lesson-1)课件.ppt

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These organs absorb oxygen and get rid of carbon dioxide. They are found on either side of the heart. They receive air as a result of breathing and when blood passes through, They give it oxygen. lungs 100 metres in 8 seconds? Lesson 1 Super Athletes Which champion athlete do you think can run 100 meters in 8 seconds? Is it possible for you? Maurice Greene 第一位同时拥有50米、60米和100米3 项世界记的男选手。 Floyd Landis 2006年环法自行车赛冠军, 第三位获此殊荣的美国人 Marion Jones 2000年悉尼奥运会女子100米、200米、4x400米接力冠军 Florence Griffith 奥运短跑三项金牌得主，同时也是100米及200米短跑的世界纪录保持人 Ben Johnson 汉城奥运会以惊人成绩打破男子百米世界纪录并夺得金牌 Super Athletes doping n. 服用兴奋剂 gene-therapy 基因疗法 dash n. 短跑 marathon n.马拉松赛跑 enhance supreme tolerate doubtful seek annual increase stand; bear highest, greatest yearly do not believe, suspicious look for Match the words with their meanings. abuse vt. 滥用 They the trust the company had shown in them, the boss is very angry. 滥用 abused used violate vt. 违反，违背 Do doping and gene-therapy the Olympic spirit? violate violet 违背 fundamental adj.根本的，基本的 Doping is a form of cheating. fundamental 根本的 abuse violate controversial adj.有争议的oppose vt. 反对 Gene-therapy is very and many people further research into it. 有争议的反对 controversial oppose What is the Olympic spirit? Is it good for athletes to cheat in the competition? Fast Reading What is the general idea of the passage? The athletes who took part in the first Olympic Games are not as fast as athletes today. B. Doping is a huge problem in the sporting world. C. The present and future of the sporting world is being seriously and negatively affected by doping and gene-therapy. D. Ben Johnson, Florence Griffith and Floyd Landis have all shocked the world by their speed. Read the text again, match the key information with each part. Records have fallen Doping Gene-therapy Olympic spi