宝鸡市石油中学张海娟

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1、Unit2CloningReadingPeriod1（教案）（修订稿）宝鸡市石油中学张海娟2009-5-2468.5选修8Unit2CloningReadingPeriod1宝鸡市石油中学张海娟Teachingaims:1）Enablethestudentstodescribecloning:ØWhatistheadvantagesofcloning？ØWhatistheproblemsordangersofcloning？ØWhatistheiropinionofcloning？2）Studentspracticereadingsk

2、illsTeachingimportantanddifficultpoints:1）Whataretheadvantagesofcloning?2）Whataretheproblemsordangersofcloning?3）Whataretheiropinionsofcloning？Teachingmethods:Fastandcarefulreading;askingandanswering.Teachingaids:AblackboardandacomputerTeachingprocedures:StepⅠ:LeadinWeh

3、avealreadyfinishedwarmingup.Ibelieveyouhavegotsomeinformationaboutcloning.Now,whocantelluswhatkindsofthingshavebeenclonedsuccessfully?6S:sheep.T:Good.Couldyouanswerthequestioninacompletesentence:“Sheephavebeenclonedsuccessfully.”Then,askanothertwostudentstoanswertheques

4、tioninacompletesentence.StepⅡ:showsomepicturesabouttheimportanteventsincloninghistory.StepⅢ:useapictureandthequestion“Doyouwanttobecloned?”“Whereiscloningleadingus?”toariseSs’interestintheReadingtext.StepⅣ:wordsrevisionFirst：showtheSstwocolumnsonthescreen.Second:asksome

5、Sstomatchthesetwocolumns.Finally:theteacherhelptheSstocorrectthepronunciation.StepⅤ:FastReadingFast-reading:asktheSstoputthemainideaofeachparagraphintherightorder.Para4:TheeffectofDolly.Para2:Cloninghastwomajoruses.Para5:People’sattitudetowardscloning6Para3:Theproblemso

6、fDolly.Para1:Cloningisawayofmakinganexactcopyofanotheranimalandplant.StepⅥ:carefulReadingLettheSsreadthetextcarefullywiththetasksasfollows1.Thelambisthecloneofthecellfromsheepbecause_____.A.itprovidestheeggcellB.itgivesbirthtothelambC.itprovidesthenucleusD.itisafemalesh

7、eep2.Whichofthefollowingisnotanadvantageofcloning?A.Cloningcanbeusedformedicalpurposes.B.Largequantitiesoffoodcanbeproducedbycloning.C.Cloningcanhelpkeepanimalsfrombecomingextinct.D.Peoplecanclonethemselvesatwill.3.Thesheepthatdonatedthesomaticcellmostprobablylived____y

8、ears.A.3B.6C.9D.124.Whataboutthewriter’sattitudetowardcloninginthispassage?A.Thewriterisagainstcloning.B.Thewr