北师大高中英语unit-lesson.pptx

Unit 21 Human Biology 主讲人：汤蕾Lesson1 Super Athletes 100 metres in 8 seconds?nextWhat champion athletes can you name?What were their achievements?backFrom the two titles can you predict what the text is going to talk about?From the two titles we can predict that the passage is going to talk about super sports stars,speed,record,sports champions1.Choose the general idea of the text.(p34 exercise 2)2.Try to think how many parts we can divide our text into.3.What are doping and gene-therapy?4.How many sportsmen does the passage mention?1.What is the general idea of the passage?a)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.Part one.(1-2)Part two.(3-6)Part three.(7)Part four.(8)Records have fallenOlympic spiritGene-therapy 2.How to divide the passageDoping 3.What are doping and gene-therapy?Taking the drugs which are originally developed to help people with illnesses but can make athletes faster and stronger in wrong hands is known as“doping”.(para.3)Gene-therapy is to build muscle and increase strength by changing peoples genes.It is very controversial and many people oppose further research into it.(para.7)gene-therapy4.How many sportsmen does the passage mention?who are related to doping?5 sportsmenMaurice GreeneBen Johnson Florence GriffithMarion Jones Floyd Landis Related to dopingnextMaurice GreenebackFormal world record holder for the 100M,with a time of 9.79 secondsBen Johnsonbackwas caught taking drugs in the 1988 OlympicsFlorence GriffithbackWorld records in the 100m and 200m,which still stand as of 2008.Marion JonesbackRecently,she admitted she took drugs and returned the Olympic medals to the Olympic Committee.Floyd LandisbackWhen Floyd Landis won the Tour de France,his championship was stripped from him when he failed the doping test after the race was over.5.What is the Olympic spirit?The spirit of competition which emphasizes taking part rather than winning.understanding,friendship,unity and fair play.6.What is your opinion about doping?Give your reasons Doping violates the Olympic Spirit!7.Summary The Olympic spirit emphasizes _ rather than winning,but in todays world,athletes desire to succeed _.In this case,doping becomes their choice,which makes them faster and stronger.As a result,the sports world does not tolerate doping as it is a_ form of cheating.Yet,it is not easy to catch athletes using illegal drugs,because it is _ for winners to be tested and others are tested _.Another big _is gene-therapy.It would be impossible to_.at all coststhreatcompulsory at random taking part find out fundamentalnext8.Who is your favorite sports star?What spirit do they have?hard training,strong will,courage,commitment,persistence braveMichael JordanBeckhamHomework 1.Review the text and try to find some important phrases.Look up new words in the dictionary 2.Pay attention to the sentences in red in the text and preview the grammar.Thank you for your listening!