北師大版高中英語選修七unit 21《human biology》（lesson12）word學(xué)案(文件)
【正文】 who them. Doping affects both athletics and 7. ___________. It’s not easy to catch using illegal drugs because： 8. It’s__________for winners to be tested. developed all the time. 10. Drug tests are_________ The sports world doesn’t doping as it is a form of 1. The Olympic spirit emphasises winning rather than taking part. ( ) 2. The Olympic spirit has been violated by the desire to succeed at all costs. ( ) 3. If doping and gene therapy continue to affect the sport world, “hero” will
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