高二英语人教课标选修8Unit2-Cloning-Reading课件

Unit2Cloning

It’sthemostfamoussheepintheworld.DoyouknowhowDollyisdifferentfromothersheep?Shewasclonedwhiletheotherswerebornnaturally.Itisthecopyofanothersheep.

2.Whatiscloning?Cloningisawayofmakinganexactcopyofanotheranimalorplant.3.Arethefollowingclonesthesame?Ifnot,whatisthedifference?NO.Thefirstfourareman-madeclones,theresttwoarenaturalclones.ReadingWritetheletter“T”ifthestatementistrue.Write“F”ifitisfalse.1.Cloningmeansmakingacopyofananimaloraplant.2.Gardenerscanmakealotofmoneybycloningplants.3.Cloninganimalsisascomplicatedascloningplants.FFT4.Dollythesheepwasthefirstsuccessfulcloneofamammal5.Naturalcloneshappeninanimalsaswillasinplants.TT1.Dollythesheep_____.A.lookedexactlylikethesheepthatprovidestheegg.B.wastheexactcopyofthesheepthatprovidesthenucleus.C.lookedlikethesheepthatgavebirthtoit.D.hadthecharacteristicsofallthreesheep.

＊Reading–IISkimming(5ms)Choosetherightansweraccordingtothetext.2.Itcanbeinferredfromthepassagethataclonedanimal_____.

A.usuallylivesaslongastheoriginalone

B.usuallyliveslongerthantheoriginalone

C.usuallyliveslongerthantheoriginalone

D.isusuallyashealthyastheoriginalone＊3.Whichofthefollowingisnotanadvantageofcloning?Cloningcanbeusedformedicalpurposes.Largequantitiesoffoodcanbeproducedbycloning.Cloningcanhelpkeepanimalsfrombecomingextinct.Famouspersonswhohavepassedawaycanbecloned.＊4.Whatispeople’sfearabouthumancloning?Whichofthefollowingiswrong?ClonedHitlerswoulddoharmtotheworld.Clonedpeoplemaybekilledatwillformedicalaid.Awomanwouldhavedifficultyrecognizingherrealhusband.Menwilldieoutbecauseawomancangivebirthtoababywithoutahusband.＊Reading–IIIDetailreading(8ms)

Fillinthechartusingtheinformationfromthetext.

ProblemsordangersofcloningAdvantagesofcloningAnimalsmay____________________ofolderanimals.Medicalcloningcould_____________forseriousdegenerative(变质的）________inhumans.developtheillnessesproducecuresillnessesAnimalclonesmay_______________thanthedonoranimalsCloningplantscan_______________ofsimilar_____________________.________________maywanttoclonethemselves.Cloningplantscanbe_______forresearchon_____________________.Thereare__________________tocloninghumanbeings.Cloningcanhelpsave____________________.dieyoungerproduceplantsqualityforsaleleaderusefulEvilplantspeciesmoralobjectionsendangeredanimalsnewReadtheletteragain,thentrytofindthemainideaofeachparagraph.1.Cloningis______________________________2.Cloninghas____________uses.3.The_________ofDolly.4.The________ofDolly.5.Itis__________toclonehumanbeings.awayofmakinganexactcopyofanotheranimalandplant.problemstwomajoreffectforbidden1.Thishappensinplantswhengardenerstakecuttingsfromgrowingplantstomakenewones,…happenvi.occurbychance;takeplace(偶然地〕发生；出现happentodo…happentosb.Ithappenedthat…happeningn.事件；偶然发生的事〔常用复数〕当园艺工人割草而使之长出新的植物时，就会发生这种情况，、、、、、、LanguagepointsforReading碰巧〔某人〕发生什么事了碰巧辨析：happen,occur,takeplace与comeabout四词都有“发生”之意，但有区别。happen是一般用语，词义较广，强调事情发生的偶然性;occur用法较正式，既可以指自然发生，也可以指有意安排。takeplace一般指有方案，按事先安排的进行的含义。comeabout往往注重事情发生的原因，常与how连用。注：以上四组词均为不及物动词，无被动语态。Usetheabovewordstofillthefollowingblanks:1)Whendidtheexplosion_______?2)Importantelections_______thisfall?3)Theconcertwill___________nextSunday.4)Howdidthequarrel___________?occurtakeplacecomeabouthappen2.Thenucleusofthiscellcontainsallthegenesneededtoproduceanewsheep.这个细胞得细胞核含有生产一只新的绵羊的必需的基因。neededtoproduceanewsheep为过去分词短语作后置定语，修饰其前面的名词genes,构成动宾搭配关系。containv.haveorholdwithinitself饱含，里面有辨析：contain与include

contain“包含，含有”，侧重于包含的内容或成分，“里面装有”；include“包括”，侧重范围或整体。Eg:1)Whisky________alargepercentageofalcohol.2)Thebook_________fortymaps,________threeofGreatBritain.containscontainsincluding高考链接LittleJohnnyfeltthebag,curioustoknowwhatit____.

〔2008全国II〕

A.collected

B.contained

C.loaded

D.saved

答案:BItisveryeasy!3.castdown使沮丧发现突破性克隆动物的命运使他沮丧。Hefeltcastdownwhenhediscoveredthefateofthebreakthroughclone.不要这么沮丧，打起精神来！Don’tbesocastdown.Justkeepupyourspirits.※castdown有两个义项：毁掉；使沮丧，另外，castaway丢弃，castoff放弃；丢弃，castout赶走Usetheproperformsofthefollowingphrasestofillintheblanks:castdownpayoffinfavouroffromtimetotimeShewas___________byherhusband’sdeath.Myunclecomestohavedinnerwithus________________.3.Finallyhisefforts__________.4.