北師大版高中英語(yǔ)選修七unit21humanbiologylesson1課件1(完整版)
【正文】 Landis have all shocked the world by their speed. Find a topic for each paragraph: a.“Genetherapy” is the real threat. b. The effect of doping. c. The Olympic spirit has been violated. d. Records fall year after year. e. Doping is a kind of cheating. f. Records fall but not because of improvement. g. Using illegal drugs is not easy to catch. h. Doping is a part of every sport. 1 2 3 4 5 6 7 8 How many sportsmen does the passage mention? Who are related to doping? Maurice Greene Florence Grifflth Marion Jones Ben Johnson and Floyd Landis Ben Johnson and Floyd Landis are related to doping Now let’s read the passage carefully and answer some questions. 1. Why would athletes today have broken records if they’d taken part in the first Olympic Games? 2. What reasons made athletes’ performances improve? Athletes are stronger and faster today than they were during the time of the first Olympic Games. Better equipment, training and diet. 3. What is doping and why is it illegal? Doping is using performanceenhancing drugs and it is illegal because it is cheating. Doping In order to enhance their performances, they use Genetherapy 4. How did the drugs affect world records in the 1980s? Ben Johnson was caught taking drugs when he broke the 100 metres world record in the 1988 Olympics and no one knows if Florence Griffith was taking drugs when she set the women’s 100m record the same year. Ben Johnson was caught taking drugs in the 1988 Olympics 5. Why are drug tests at sporting events often one step behind? Drugs tests are only developed after the new drugs are being used. This means that there is a time period when people are us
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