2018_2019学年高中英语Unit21HumanBiologySectionⅠWarm_upLesson1—Pre_reading课件.pptx

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1、100metresin8seconds？Recordshavebeen1._______________intrackandfieldusuallybecauseofbetterequipment,traininganddiet.Dopingandgenetherapyaretwoworryingissuesatsportscontests.Doping●Performanceenhancingdrugsareoriginallydevelopedtohelppeoplewith2.________.Athletestakingthesedrugsarefasterandst

2、rongerthanis3._______forhumanbeings.Theyalsocauseserioushealthproblemsinlaterlifeforthosewho4.______them.●Dopingisaformofcheating.Someathleteswerecaught5.______andsomerecordsremain6.________.dropping/fallingillnessesnormalabusedopingdoubtful100metresin8seconds？Doping●Dopingispartofeveryspor

3、twhereathletesseektoachievebeyondtheir7.____________.●Newdrugsaredevelopedallthetimeanddrugtestsareoftenonestepbehind.Genetherapy●Manypeople8.______furtherresearchintogenetherapy.●Ifathleteshadtheirgeneschanged,itwouldbealmostimpossibleto9.________.Dopingandgenetherapy10.______theOlympicspi

4、rit,whichemphasisestakingpartratherthanwinning.naturallimitsopposefindoutviolate