高一英语必修5 Unit 3 Task 课件-豆柴文库

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Mould5Unit3Let’srevise…suggestLeadinHaveyoueverheardofanotherkindofpollution,genepollution?
Let’sshare…Arethereanydifferencesbetween
GMfoodandnaturalfood?Let’slisten…Notes
Growthhormonesareusedinmeat,eggsandvegetables.
Growthhormonesmakeanimalsgrowfatter.
Growthhormoneskeepanimalshealthy.
GMfoodismoreexpensivethannaturalfood.
GMfoodtechnologyisanewscientificdevelopment.
6.GMfoodtastesbetterthannaturalfood.
7.Free-rangefoodcomesfromanimalsthataregivendrugs.
8.Free-rangefoodischeaperthanGMfood.
9.Free-rangeanimalsarekeptindarksheds.
10.Mostpeoplewouldnotpaymoreforfree-rangefood.Nowlet’slistentotheconversationbetweenyouand
thescientistandconfirmifyournotesarecorrect,
payingattentiontothefollowingexpressions:
Notes
Growthhormonesareusedinmeat,eggsandvegetables.
Growthhormonesmakeanimalsgrowfatter.
Growthhormoneskeepanimalshealthy.
GMfoodismoreexpensivethannaturalfood.
GMfoodtechnologyisanewscientificdevelopment.
6.GMfoodtastesbetterthannaturalfood.
7.Free-rangefoodcomesfromanimalsthataregivendrugs.
8.Free-rangefoodischeaperthanGMfood.
9.Free-rangeanimalsarekeptindarksheds.
10.Mostpeoplewouldnotpaymoreforfree-rangefood.Let’slistenandconclude…GMfoodischeaperthannaturalfood
becausetheamountproduced
isusuallylarge.Let’sspeakandgetmore…SafetyofGMfood
2.Possiblesideeffects
3.Tastecomparedwithnormalfood
4.Cost

5.Needforgovernmentcontrol
6.Popularityforbuyers
PairworkDoyouthinkitissafeforpeopletohaveGMfood?Tryornot?AlmostalltheSaladcookingoilinthesupermarketismadefromGMsoybeans1.____________areusuallywrittentofamilymembers,relatives,friends,classmatesandetc.ReadingaformalletterUsefulphrasestostartaletterUsefulphrasestoendaletterDearsir,
IamwritingtoaskwhetheryouplantosellGMfoodinyoursupermarket.
……Homework