1、Unit21 warm up 学习目标 By the end of the class, the students will be able to: learn and revise the words related to the topic. get the general idea of the text and the writer viewpoints. 学习过程 课堂活动 （一） 预习交流 .Word bank. Match the words with their Chinese meanings. interval n. 听觉 digest n.间隔；间歇 swap n. 脉搏
2、 hearing vt. 消化 pulse vi. 交换 Match the words with their meanings. enhance increase supreme stand;bear tolerate highest,greatest doubtful yearly seek do not believe, suspicious annual look for （二） 合作探究 Read the text again, match the key information with each part. Part one. (1-2) Doping Part one. (3-
3、6) Records have fallen Part one. (7) Olympic spirit Part one. (8) Gene-therapy （三） 分层提高 (1). 1.Show the writers attitude towards the drugs and gene-therapy.You may refer to the following words and expressions or the text. come across the issue, drug, cure disease; in the wrong hands, abuse, tolerate
4、 doping; gene-therapy, big threat, oppose; violate the Olympic spirit, taking part rather than winning (2). Use your own words to show the writers viewpoints. Example: A:Which champion athlete can run 100 metres in 8 seconds? B:I dont know. But we come across the issue-enhancing drugs. These drugs a
5、re 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 ”wil
6、l 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.Thats why thousands of people are crazy about their hero and the great Olympic! （四） 总结归纳 （五） 巩固反馈 Words Complete the exercise.
