高中英语 module2 DNA the secret of life-reading and vocabulary课件 外研版选修9 课件VIP免费

外研版高中三年级(第9册)Module2ReadingandvocabularyOnFebruary28,1953,twoscientistsnamedJamesWatsonandFrancisCrickdiscoveredthesecretoflifeJamesWatsoninBritainandFrancisCrickinAmericaPart1WhydidWatsonandCricksay,“Wehavediscoveredthesecretoflife?”Becausetheyhadfoundtheanswertooneofthemostimportantquestionsofbiology---howdolivingthingsreproducethemselves?WhydidthediscoveryofDNAisveryimportant?ThediscoveryofDNAhasbeencalledthemostbiologicalworkofthelast100years.Ithasalreadyhadandwillcontinuetohaveanenormousinfluenceonourlives.Wehavealreadyexperiencedthebenefitsinmanyyears.Part2StoryAHowwasJohnWaterjudgedguilty?Heleftsomeofhisowncellsonhisvictim.ScientistscomparedtheDNAfromthesecellswiththeDNAfromthesecellswiththeDNAofpeopletheyhadquestioned.StoryBHowdidMikeandJuliahaveagood—Looking,veryintelligentchild?Juliahadasmallbutveryexpensiveoperation,usingatechnologycalledgeneticengineering.StoryCHowdidMarkSawyerbecomeaworldchampionagain?HeletthesurgeoninsertananimalgeneintoMarkthatwouldmakehimrunfaster.StoryDWhathappenedtothecouple?Theirchildwillbebornwithaterrible,inheritedillness.Whatdidtheydecidetodo?Thecoupledecidedtogetridoftheunbornbaby.Part3DoyouthinkstoriesA—Dinpart2aretrue?StoriesAandDhaveactuallyhappenedmanytimes.StoriesBandCwillbecomepossibleinthenearfuture.Whatwillgeneticengineeringhelpscientiststodointhenearfuture?Thenewtechnologyofgeneticengineeringmeansthatscientistswillsoonbeabletoinsertnewgenesintounbornbabies,childrenoradults.Whatwillhappenifwestartchoosingthecharacteristicsofourbabies?Wearealteringnatureinaverydirectway.Whatmighttheconsequencesbe?Itispossiblethatwewillcreatetwokindsofpeople,geneticallyengineeredpeopleandordinarypeople.commitamurdercouplehereditaryperformanoperationpregnantquestionreproducevictim1.…howdolivingthingsreproducethemselves?Thismeans___________.(a)tohavebabiesorproduceyoungplants(b)tofeedthemselves.2.…ourgenes,whichpasshereditarycharacteristicsontoourchildren.Thismeans___________.(a)new(b)inheritedfromparents.(a)(b)commitamurdercouplehereditaryperformanoperationpregnantquestionreproducevictim3Althoughthepolicequestionedhim…Thismeans___________.(a)towonderaboutsomeone(b)toasksomeonequestions4Butwhenhecommittedthemurder…Thismeans___________.(a)killedtheman(b)sawthedeadman.5.…watersleftsomeofhisowncellsonhisvictim.Thismeans___________.(a)thepersonheattacked(b)hisownclothes(b)(a)(a)commitamurdercouplehereditaryperformanoperationpregnantquestionreproducevictim6Aboutsixmonthsago,Marksecretlyvisitedasurgeon,whoperformedanoperationonhim.Thismeans________(a)Markhadanoperation(b)thesurgeonsaidMarkshouldhaveanoperation7.DamianPetersonandhiswifeClaraareanothercouple…Thismeans________.(a)twopeoplewhoaremarried(b)example8.WhenClarabecamepregnant…Thismeans_________(a)becameworried(b)wasgoingtohaveababy.(a)(a)(b)Discussion:Whatisyouropinionaboutthedevelopmentsingeneticsingeneral?EXAMPLE:Ithinkthey’reveryexciting,butweneedtobeverycareful.Wedon’tknowwhatconsequencesofthesechangeswillbe…THANKYOU