高中英语 Module2 DNA-the secret of life课件 外研版选修9.ppt

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1、DNA---theSecretofLifeINTRODUCTION[Vocabularyandspeaking]Matchthewordandphrasesintheboxwiththeirmeanings.takeaftertohavesimilarphysicalfeaturesassomeoneelsetobesimilartoanolderpersoninyourfamilyinappearanceorpersonalityaformalwordmeaningtohavesimilarphysicalfeatures

2、assomeoneelselooklikeresembleWhodoyoulooklike,yourmotheroryourfather?Explainhowyouresemblehim/her.Whodoyoutakeafterinyourpersonality?Workinpairsanddiscussthequestions.Completethesentencesaboutthebodywiththewordsinthebox.celldiseasesenvironmentgendergeneticsidentica

3、ltwinSomethingthatisfoundinalllivingthingsisa________.A______isoneoftwochildrenbornatthesametimetothesomemother.__________isthestudyofgenes.Some__________areinheritedbutnotallofthem.celltwinGeneticsdiseases5.The_______ofachildiswhetheritisaboyoragirl.6.Twinswhoare_

4、________haveexactlythesamegenes.7.The____________aswellasourgenesmakesuswhoweare.genderidenticalenvironmentWorkinpairsDiscusswhichcharacteristicsyouhaveinheritedfromyourparentsandwhichcharacteristicsareformedbyyourenvironment.Usethewordsinthebox.eyesighteyecolorgen

5、ehealthheightintelligenceweightpersonalityReading&Vocabulary1FastreadingReadparts1and2ofthepassageandanswerthequestions.Part1WhydidWatsonandCricksay,“Wehavediscoveredthesecretoflife?”Becausetheyhadfoundtheanswertooneofthemostimportantquestionsofbiology---howdolivin

6、gthingsreproducethemselves?WhydidthediscoveryofDNAisveryimportant?ThediscoveryofDNAhasbeencalledthemostbiologicalworkofthelast100years.Ithasalreadyhadandwillcontinuetohaveanenormousinfluenceonourlives.Wehavealreadyexperiencedthebenefitsinmanyyears.StoryADNAtestingw

7、asmadeastandardprocedureincriminalinvestigations.what'seachstoryabout?StoryBUsingatechnologycalledgeneticengineering,acouplehadahighlyintelligent,good–lookingbaby.StoryCHavingbeeninsertedananimalgene,Markwonallhisraces.StoryDHavingbeentestedthattheunbornchildwouldh

8、aveaterrible,inheritedillness,thecoupledecidedtogetridofit.Part3DoyouthinkstoriesA—Dinpart2aretrue?StoriesAandDhaveactuallyhappenedmanytimes.Stor