广西扶绥县第二中学高中英语 Unit2 Cloning课件 新人教版选修8.ppt

cloningisawayofmakinganexactcopyofanotheranimalandplant whatiscloning whoisfamousinthecloningfield doyouknowsomethingaboutdolly whenwassheborn issheman madeornaturalcloning whendidshedie howlongdidshelive whyisshesofamous discussion howdoscientistscloneasheep afemalesheepprovidesaneggcell thenucleusisremovedfromtheeggcell cloningprocedure step1 asecondfemalesheepprovidesasomaticcell thenucleusisalsotakenout cloningprocedure step2 theeggcellfromsheepaandthenucleusfromsheepbarejoinedtogetherusingelectricity cloningprocedure step3 thecombinedcelldividesandgrowsintoanembryo cloningprocedure step4 theembryoisthenputintofemalesheepc finallyasheepdiscloned cloningprocedure step5 sheep goats oxen mice pigs cats rabbitsandsoon whatanimalshavebeencloned canyoupredictthefutureofcloning whatwillisitleadingus unit2 cloning whereisitleadingus readingstrategies thebetterwaytogetthemainideais a readthepassagesentencebysentenceandstudythemeaningofindividualwordsorsentenceifnecessary b trytolocateatopicsentenceinthefirst thelastorsometimesinthemiddleparagraph scan skim whatisthetopicsentenceofthefirstparagraphwhatisthetopicsentenceofthelastparagraph however scientistsstillwonderwhethercloningwillhelporharmusandwhereisitleadingus cloninghasalwaysbeenwithusandisheretostay beheretostay isanidiom whichmeans beacceptedandusedbymostpeople 1 themainideaofthetextis a animalcloningisveryvaluableandcanbenefittheworldb animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenc animalcloningiswelldevelopedbecausedollythesheepwasbornd animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture 主旨大意 2 whichofthefollowingstatementsaboutcloningisnottrueaccordingtotext a cloningissomethingthathasbeendevelopedquiterecently b twinsthatlookexactlythesameareoriginallyfromthesameegg c cloningisusedbygardenerstomakemoremoney d animalcloningismuchmoredifficultthanplantcloning 细枝末节 3 thecloningofdollythesheepsucceededbecause a itseasiertocloneasheepthanotheranimalsb thescientistsweredeterminedandworkedhardwithpatiencec thescientistswererewardedandgotlotsofmoneyd manyotherattemptstoclonemammalsfailed 4 whichofthefollowingisnotanadvantageofcloning cloningcanbeusedformedicalpurposes largequantitiesoffoodcanbeproducedbycloning cloningcanhelpkeepanimalsfrombecomingextinct famouspersonswhohavepassedawaycanbecloned 5 thesheepthatdonatedthesomaticcellmostprobablylived years a 3b 6c 9d 12 推理判断 whenwecomeacrossquestionsthatrequireustoinfer implyorconcludefromthepassage rememberto a inferunknownfactsfromknownfactsb usethedirectinformationfromthetext reading iiidetailreading 8ms fillintheblankusingtheinformationfromthetext cloningnotonlyhappensin butalsoin cloninghastwo first itcanhelpgardenersproduce second itisvaluableforresearchon andformedicalresearchon cloningplantsis whilecloninganimalsisvery plants animals majoruses commercial quantitiesofplants new plantspecies animals straightforward complicated 3 thewholescientificworld ofdolly atfirst thefactthatdollyseemeddevelop wasvery later cloningscientistswere tofindthatdolly s weremore toamucholderanimal 4 cloningbecame usingcloningto followedtheprogress normally encouraging castdown illnesses appropriate controversial cureseriousillnesses whatdoyouthinkisthewriter spointofviewinthisreadingpassage isitinfavourofcloningoragainstit ithinkthewriteris because impartial neutral he shedoesnotstateanypersonalopinionaboutcloning a b a ithinkcloningisgoodforus because b ithinkcloningisbadforus because iscloninggoodorbadforus writedownyouridea describethepictureinyourownwords whatisyouropinionofcloninghuman pairwo