北师大版英语高2下册“Unit 21 Human Biology”课件.pptVIP

kidney n. 肾 circulate v. 循环 For example： pump vi. 用泵抽出（注入） mineral n. 矿物 n. 听觉n.间隔；间歇n. 脉搏vt. 消化vi. 交换 Which champion athlete do you think can run 100 meters in 8 seconds? Is it possible for you? doping n. 服用兴奋剂 dash n. 短跑 enhance supreme tolerate doubtful seek annual abuse vt. 滥用 controversial adj.有争议的oppose vt. 反对 A: Which champion athlete can run 100 metres in 8 seconds? B:I don’t know. But we come across the issue-enhancing drugs. These drugs are developed to help people with illnesses, but in the wrong hands, they create “supreme athletes”. A: Taking these drugs is known as “doping”, they cause problems for those who abuse them. B: The sports world does not tolerate doping as it is a fundamental form of cheating. A: Yes. “Gene-therapy ”will be the next big threat. It is controversial and many people oppose further research into it. B: I agree. Both doping and gene-therapy violate the Olympic spirit. The spirit of competition-higher, faster, stronger-emphasises taking part rather than winning. That’s why thousands of people are crazy about their hero and the great Olympic! 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 spirit Part one. (1-2) Part two. (3-6) Part three. (7) Part four. (8) come across the issue,