外研版英语必修9 Module2 Period1 Production and reading(DNA-the Secret of Life)VIP免费

Module2DNA-theSecretofLifePartOne:TeachingDesign第一部分:教学设计Goals●Todevelopthestudents’readingability●ToknowsomethingaboutDNA●Tomastertheuseofthe,this,it,now,was\were,much●TohelpthestudentshowtowritesciencematerialsPeriod1:Productionandreading(DNA—theSecretofLife)ProceduresStep1:Warmingup1.Warmingupbyquestioning1)Whydopeopletakeaftertheirparentsinpersonality?2)Whodoyoulooklike,yourmotheroryourfather?3)Areyousimilartoyoursisters\brothersinappearanceorpersonality?2.WarmingupbydiscussingBoysandgirls,todaywearegoingtolearnsomethingaboutDNA.Doyouhaveeverheardaboutit?Beforeyoureadthepassage,I’dliketogiveyousomequestionstodiscuss.HasthediscoveryofDNAbeencalledthemostimportantbiologicalworkofthelast1ooyears?Why?Yes.Ithasalreadyhadandwillcontinuetohaveanenormousinfluenceonourlives.Wehavealreadyexperiencedthebenefitsfromitformanyyears.Forexample,WecanfindthemurdersbyDNAtesting.Wecandecidethechildrenwewantbygeneticengineering.DoesthediscoveryofDNAworryyou?No.Wecanusethenewtechnologyofgeneticengineeringtocreatethecharacteristicswewant.Ifweinsertnewgenesintounbornbabies,childrenoradults,thebabywillbecleverer,theadultwillbemorehealthy,andtheywilldoanythingbetter.Yes.Ifwechoosethecharacteristicsofourbabies,wearechangingnatureinaverydirectway.Whatmightthe用心爱心专心consequencesbe?ThetechnologyofDNAmightcausemanysocialproblems.AreyoufororagainstGMfood?Explainwhy.IamforGMfood.Ifageneforresistancetodroughtisputintowheatormaize,thenacrophighlyresistanttodroughtcanbeproduced.Cropswithcertaingenescankillpests.Thus,wecanproduceenoughfoodforthosehungrypeople.IamagainstGMfood.Scientistshavefoundthatacropwithagenethatkillspestscanleaveapoisoninthesoilthatkillsharmfulaswellashelpfulinsects.GMcropsmayaffecttheenvironmentbyproducingchemicalsorcarcinogens.IthinkGMfoodisnotsafe,anditmayhavesideeffects.SoIaminfavorofbanningGMfood.WhatshouldwedoaboutGMfoodinChina?MyviewisthatweshouldnotproducetoomuchGMfoodinChina.ThegovernmentshouldcontrolandregulateGMfood.Forexample,themarketplacesshouldputlabelsonGMproductstomaketheconsumersknowwhatkindoffoodtheyarebuying.Idon’tthinkitisagoodideatoimportGMproductsfromforeigncountries.We’dbetteruseGMproductscautiously.3.WarmingupbystudyingvocabularyTurntothevocabularybehindthismodule,andstudythenewwordsandexpressions,payingattentiontotherelationshipbetweenthespellingandthepronunciation.Step2:Pre-reading1.ImaginingWell,justsupposewehaveadvancedtechnologyofDNA,andwhatcanwedowiththegeneticsengineering?Imagineyouareaboy/girlwithother’sgenesinsertedinyourbodybeforeyouwereborn.Doyoufeel…?Ifanathleteisinsertedalion’sgene,canhe/sherunfasterthannormalhumanbeings?2.IntroducesomenewwordsShowthefollowingnewwordsfromthetext,andaskthestudentstoreadeachwordtwicetogether,correctingtheirmistakesintheirpronunciation.alterambitiouscharacteristicconsequencedifferentiateenvironmentgendergeneticshereditaryidenticalindescribablyinheritinsecticideinsertinspectionintelligenceinvestigationbenefitqualificationresembletraittransgenicNow,letshaveaspellingquiz.Readthefollowingsentencesfirst,thenfilltheblanks,usingtheirproperforms.1）Wecan’ta____natureinthisway.Thesenewgeneswillcreatenewc____.2）What’stheb____oflearningEnglish?用心爱心专心3）Ifyouinsertnewgenesintosomeone,whatwillthec____be?4）Wearea____tosucceedinthematch.5）Weshoulddosomethingtostoppollutingthee____.6）Scienti...