Book-8--Unit-2--Cloning-公开课教案

1Book8Unit2CloningPeriod1WarmingUp,Pre-reading,Reading&ComprehendingDate:22ndMay,2013Students:Class9，Senior2Teacher：ZengXiaoqingI.TeachingAims1.Tomakethestudentshaveageneralideaaboutcloning.2.TomakethestudentsknowabouttheprocedureofanimalcloningandthelifeofDollythesheep.3.Enablethestudentstoexamineanddiscusssomeoftheissuesassociatedwithcloning.II.KeyPoints1.ToknowabouttheprocedureofanimalcloningandthelifeofDollythesheep.2.Todiscusstheadvantagesanddisadvantagesofcloning.III.DifficultPoints1.HelpthestudentsunderstandtheproceduresofanimalcloningandthelifeofDollythesheep.2.Findouttheadvantagesanddisadvantagesofcloninganddiscussaquestiononcloning.IV.TeachingMethods1.Task-basedteachingandlearning2.Situationallearning3.Cooperativelearninganddiscussion.V.TeachingAidsTheMultimediaandothernormalteachingtoolsVI.TeachingProceduresStep1Leading-inLookatthefollowingpicturesandhaveafreetalk.Doyouknowthenameofthemostfamoussheepandhowitisdifferentfromothersheep?Step2Warmingup1.PleaselookatthepicturesonPage10,anddiscusswhichonesarenaturalclonesandwhichonesareman-made.Explainhowtheydiffer.2.Enjoymorepicturesaboutclonedanimals.Step3Pre-readingGetthestudentstoreadthetitleofthereadingpassageandpredictthecontent.Step4while-readingI.FastreadingAskSstoreadfor:1)Mainideaofthepassage2)Outline–keywordsforeachparagraph1.What’sthemainideaofthetext?A.Animalcloningisveryvaluableandcanbenefittheworld.B.ItexplainshowcloningworksinthefirstsuccessfulcloneDollythesheep.C.Itillustratespeople’sviewsaboutDolly’sappearanceandcloningpeople.D.BothB&C2.GetthestudentstomatchthemainideaofeachparagraphPara1:A.people’sreactiontocloningPara2:B.TheproblemsofDolly.Para3:C.thedefinitionofcloningPara4:D.TheimpactofDolly.Para5:E.ThemajorusesofcloningII.Intensivereading2Askthestudentstoreadthepassageparagraphbyparagraphandthenanswerquestions.a.Paragraph1:Thedefinitionofcloning1)What’sthecloning?2)Whatarethetwoexamplesofnaturalclones?b.Paragraph2:Themajorusesofcloning1.Howmanymajorusesdoescloninghaveandwhatarethey?2.Inthesecondparagraph,theword“straightforward”means____.A.uncomplicatedB.honestC.frankD.difficult3.Thelambisthecloneofthedonatedcellfromthesheepwhich________.A.providestheeggcellB.givesbirthtothelambC.providesthenucleusD.isafemalesheepc.Paragraph3:TheproblemsofDolly1.Atfirst,thefactthatDollyseemedtodeveloped________was__________.Thencamethe_________news_____Dollyhadbecomeseriously.Finally,theproblemthatoccurredtothescientistswasthataclonedanimallives___________theoriginalone.2.Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.13d.Paragraph4:TheimpactofDolly1.Dolly’sappearanceraised____________and_____________themediaandpublicimagination.2.Theword“controversial”inPara4probablymeans:_______.A.complicatedB.arguableC.importantD.traditionale.Paragraph5:People’sreactiontocloning1)Trueorfalse:1.PeoplefearedthatClonedHitler'swoulddoharmtotheworld.2.Alltheresearchintohumanbeingswillbeforbidden.3.Somecountrieswillusecloninginawiseway.2)Wecaninferfromthelastthreeparagraphsthat___.A.ThenormaldevelopmentofDollyhadnoeffectonthecloningofotherspecies.B.Dolly’sseriousdiseaseandfinaldeathdisturbedthewholeworld.C.Dollysuccessfullyclonedanewlambwiththehelpofcloningscientists.D.Therewereargumentsaboutanimalsaboutanimalcloningandconcernsaboutthefutureofcloning.Step5Post-reading1.AskSsthequestion:whatisthewriter’sattitudetowardscloning?Why?2.Askstudentstodiscusstheadvantagesandproblemsofcloning.3.Enjoyavideoandthenhaveagroupdiscussion.Itissaidthatevilleaderswishtoclonethemselves.Andevensomescientistsareplanningtoclonehumanbeings.Whatisyouropinionofcloninghumanbeings?(Studentsshouldgivetheiropinionsoutfreely.Workingroupof4.Oneofthemcantakenotesandmakeuptheiropinions.Thenchoosesomegroupstospeakouttheirresults.)Step6HomeworkWriteapassagetitledIscloninggoodorbad?Yourpassageshouldincludethefollowing：1)Whatiscloning2)Advantagesofcloning3)Disadvantagesofcloning4)Youropinionofit