高中英语人教版选修8Unit2-Reading

Unit2ReadingHadhimcloned?Whatisaclone?Acloneisgroupofcellsororganismsthataregeneticallyidenticalandhavebeenproducedasexually(无性生殖/繁殖)fromthesameoriginalcell.Theyincludenaturalandman-madeclones.clonedMan-madecloneWarmingupTwokindsofclones:isonethatoccursinanaturalformofcloningwithouthuman’shelp.isonethatisproducedthroughhumanintervention(介入).NaturalcloneAstrawberryplantThenewplantsthatgrowfromtherunnersareexactcopiesoftheoriginalplant.BanyanLuckybambooThegardenercutstheplant,andthenthecuttingproducesanothernewplant.GrowingnewplantsTwinsTheyarebornnaturallyandidenticalinsexandappearance.MonkeyKingShewasclonedwhiletheotherswerebornnaturally.HowdoesDollydifferfromothersheep?In1996,asheepcalledDollywasborn.Itisthefirstmammaltobecloned.Itisconsideredtobethegreatestsuccessinthedevelopmentofcloning.Thefollowingaresomephotosaboutcloning.Seehowmuchyouknowaboutit.2001cloningcattle2002cloningcats2002cloningrabbits2003CloninghorseTheCloningFluorescentpig(left)andthenormalpig(right)2005Cloningdogs2005Cloningwolves2015Cloningcamel2018CloningmonkeyHowwasDollythesheepborn?Hey,howIwasborn?Readingeggcell卵细胞nucleus细胞核体细胞somaticcellembryo胚胎FastreadingReadthetextquickly.(3min)Underlineorcirclesomethingyouthinkisimportant.Themainideaofthetextis____A.animalcloningisveryvaluableandcanbenefittheworld.B.animalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenC.animalcloningiswelldevelopedbecauseDollythesheepwasborn.D.animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture.Mainideaawayofmakinganexactcopyofanotheranimalandplant.1.The_________ofcloning:___________________________________________________2.The______and_________ofcloning.3.The__________ofDolly(the_________and________ofDolly).4.The____________ofDolly.5.People’s______________tocloning.Themainideaofeachparagraph.problemsusesimpactreaction/attitudesdeathbirthproceduresdefinitionCarefulreadingReadthetextcarefully.Answersomequestions.1.ThecloningofDollythesheepsucceededbecause____.A.itseasiertocloneasheepthanotheranimalsB.thescientistsweredeterminedandworkedhardwithpatienceC.thescientistswererewardedandgotlotsofmoneyD.manyotherattemptstoclonemammalsfailedBDetails2.ThelambisthecloneofthecellfromsheepBbecause_____.A.itprovidestheeggcellB.itgivesbirthtothelambC.itprovidesthenucleusD.itisafemalesheepDetails3.Thesheepthatdonatedthesomaticcellmostprobablylived____years.A.3B.6C.9D.13Judgment4.Inthesecondparagraph,theword“straightforward”means____.A.uncomplicatedB.honestC.frankD.difficultGuessing5.WhichofthefollowisNOTaproblemordangerofcloningmentionedinthetext?A.Evilleadersmaywanttoclonethemselves.B.Animalclonesmaydeveloptheillnessofolderanimalsandmaydieyoungerthanthedonoranimals.C.Therearemoralobjectionstocloninghumanbeings.D.Toomuchcloningmayleadtothedestructionofthebalanceofnature.Details6.Whataboutthewriter’sattitudetowardcloninginthispassage?A.Thewriterisagainstcloning.B.Thewriterisinfavorofcloning.C.Thewriterdoesnotstateanypersonalopinionaboutcloning.D.Thewriterisinagreementwithcloning.InferencingConsolidationCloneisawayofmakinganexact____ofanotheranimalorplant.Cloninghavetwo______uses.Firstly,gardenersuseitallthetimetoproduce__________quantities.Secondly,itisvaluableforresearchonnewplant_______andformedicalresearchonanimals.Butthroughthe______anddeathofDolly,cloninghasalotofproblems.Ontheotherhand,weknowcloningiscontroversialinsomecountriesfor________and_______reasons.copymajorcommercialspeciesbirthmoralreligious1Cloningmeansmakingacopyofananimaloraplant.2Gardenerscanmakealotofmoneybycloningplants.3Cloninganimalsisascomplicatedascloningplants.4Dollythesheepwasthefirstsuccessfulcloneofamammal.5Naturalclonehappeninanimalsaswellasinplants.FTFTTexact…anotherTorFcommercialmore(…than…)breakthroughIscloninggoodorbadforus?AdvantagesDisadvantagesGroup1and2Group3and4DiscussionIscloninggoodorbad?AdvantagesDisadvantagesBrainstorming5minutes1.Medicalcloningcouldproducecuresforseriousillness.2.Cloningplantscanproduceplantsofsimilarqualityforsale.3.Cloningplantscanbeusefulforresearchonnewplants.4.Maybringextinctanimalsbacktolife…1.Animalclonesmaydeveloptheillnessesofolderanimals.2.Animalclonesmaydieyoungerthanthedonoranimals.3.Leadersmaywanttoclonethemselves.4.Itiscrueltoanimals.5.Itcanweakenthespecies.…Homework1.Writeashortpassageaccordingtothefollowingtopic.Shouldhumancloningbeallowed?Thankyouforyourlistening