高中英语 Unit2第3课时 The Third Period Speaking教案 新人教版选修8.docx

高中英语 Unit2第3课时 The Third Period Speaking教案 新人教版选修8.docx

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高中英语Unit2第3课时TheThirdPeriodSpeaking教案新人教版选修8

2019-2020年高中英语Unit2第3课时TheThirdPeriodSpeaking教案新人教版选修8

Teachinggoals教学目标

1.Targetlanguage目标语言

a.重点词汇和短语

theme，fighting，conflict，argument，destruction，inone’sopinion

b.交际用语Expressingandsupportinganopinion

Iwouldneveraccept...

I’mnotbotheredabout...

Idon’tmindbut...

Ihopeyou’llcarryon...

Areyousureyouwantto...?

Iagreewithyouthat...

Doyouthinkitiswiseto...?

Ithinkyoushould...

Welldonetoyoufor...

Ican’thelpthinking...

Icouldneveragreeto...

2.Abilitygoals能力目标

Enablethestudentstoexpresstheiropinionsaboutcloningusingsomeusefulexpressions.

3.Learningabilitygoals学能目标

Helpthestudentslearnhowtoexpresstheiropinions.

Teachingimportantpoints教学重点

Learntousethestructuresofexpressingandsupportinganopinion.

Teachingdifficultpoints教学难点

Howtogiveaspeech.

Teachingmethods教学方法

Cooperativelearning.

Teachingaids教具准备

Aputer&aprojector.

Teachingprocedures&ways教学过程与方式

StepⅠLead-in

T:

Goodmorning/afternoon,boysandgirls!

Ss:

MorningMr...

T:

Lastclasswehavetalkedaboutclone,weallknowitisnotadream.Noweveryone,ifIgiveyouachancetoclonewhatwillyourestorethen?

S:

Edison,dinosaurs,Japanesewolf,Einstein.

T:

DoyouwanttocloneHitler?

S:

No.Hitlerisadangerousperson.

T:

Ifsometerroristsmasterthisclonemethod,theymaybringdisasters.Allyourchoicesareexcellent.Todaywewilllearnanotherpassageaboutcloning,fromwhichwewillknowwhetherwecanbringdinosaursbacktolife.

Askthestudentstogothroughsomefactsofcloning.

T:

Fromthesefactsweknowhumanbeingshaveachievedgreatprogressincloning.Nowreadthetextcarefullytogettheanswersforthesequestions:

whatanimalshavepeoplecloned?

S:

Frogs,mice,cows,sheep,bisons,cats,anddogs.

T:

Goodjob.Answerthequestion:

Whatarethemoncharacteristicsoftheseanimals?

Ss:

Theyarenowadaysanimals.

T:

Yeah,IthinkyoumusthaveseenthefilmJurassicPark,inwhichascientistclonesseveraldifferentkindsofextinctdinosaurs.Canwereallyclonedinosaursnow?

Letthestudentsturntopage15andthenreadthetextquickly.Severalminuteslater.

S:

Wecannotclonedinosaurs,becauseit’sdifficultforustogetitsDNA.

T:

Goodjob.It’sonlyadream.Dinosaursdisappeared65,000,000yearsago.Sothechanceofdinosaurseverreturningtotheearthismerelyadream.

StepⅡReadandanswer（P16）

Toanswerthesethreequestions,teachercangivethestudentssomeexamplesasexplanation,forexample,Question1.

T:

Nowthinkaboutthisquestion:

ifintheworldthereisonlyonesheepandhumanbeingswanttoclonemore.SomedayslateraDollyappears,thenmanymore.Butonedayallsheepgetthesamedeadlydisease.Nowpleasethinkaboutwhattheresultsare.

S:

Maybetheywouldalldie.

T:

Why?

S:

Becauseallsheephavethesamearrangementofgenes.

T:

Right.NowcanyouanswerQuestion1?

Whyshouldn’tyoucloneanextinctanimalunlessthereisenoughdiversityinthegroup?

S:

Itisuselesstocloneananimalifthereisnotenoughdiversityinthegroupforittoovereillnesses.

T:

Whyisitwrongtocloneanextinctanimalifitwouldhavetoliveinazoo?

S:

Iftheclonedanimalshavetoliveinthezoo,itisunfairtothem.Theyneedfreedom.

T.Whycan’tyouclonetheDNAofanimalsthathavebeenextinctlongerthan10,000years?

S:

Dinosaursdisappeared65,000,000yeasago.Sothechanceofdinosaursreturningtotheearthismerelyadream.

StepⅢDiscussion（Question2）

Thisisaspeakingtask.Askthestudentstohaveadiscussioningroups,organizetheirwordsproperly,andgivevividdescriptionofthechosenanimals.

T:

Nowlookatthetableonpage16,discussinpairswhichextinctanimalsdescribedareworthrestoringbymeansofcloning.Chooseoneanimalandusetheinformationtohelpyouarguewhythisanimalshouldberestoredtotheearth.

Givethestudentssixminutestodiscuss.

S1:

IthinkGreatAukisawonder.Becauseitisaverylargebirdthatcannotfly.Theusefulthingaboutitisthatitsfeatherdoesn’tabsorbwater.Ithinkifwewearclothesmadeofitsfeather,wewillnotworryaboutrain.

S2:

Iagreewithyou.ButIamhappytoacceptDodobirdbecauseitisfriendlyandnotharmful.Ilikegentleanimals.Itcanalsolaylargeeggsanditsmeatistasty,butIdon’tthinkIwilleatitsmeat.

…

T:

FromyouranswersIthinktheseanimalsareallusefulandtheyallshouldberestoredtotheearth.Atthesametime,weshouldtryourbesttoprotectthem.Doyouagreewithme?

S:

Yes.

StepⅣWritingareport（P17）

DealwithQuestionsthreeandfour.Dividethewholeclassintofourgroups.Thentheycanhaveapetition.

T:

Noweveryone,imagineallofyouareownersofyourchosenanimal.Nowworktogether,andgiveusavividdescriptionofyourpet,thenIwilldecidewhichoneisthebesttoberesortedtotheearth.

Severalminuteslater,thestudentsgiveperformances.Atthesametime,listsomemajorpointsontheblackboard.

T:

Welldoneeveryone.Itisreallyhardformetochoose,letusvoteOK?

StepⅤTALKING（P55）

Askthestudentstotalkaboutthequestionswiththeteacher’shelp.

T:

Lookatthequestionsonpage54.Doyouknowhowtoshowyouropinion?

Youcandiscussthefollowingquestionswithyourpartnerandusetheseexpressionsonpage54.

1.Howwouldyoufeelabouthavingacloneofyourselfinthefamily?

2.Whatproblemsdidyouhavegrowingupandhowcanyouhelphim/heravoidthem.

StepⅥHomework

T:

Writedownyourfeelingsandattitudestowardsclone.binethemintoaposition.

Sampleversion1:

Inmyopinionitiswrongtoclonehumanbeings.Ifmyparentsdecidetohaveaclonemadeofme,IwillfeelverysadandIwillneveracceptthecloneasamemberofmyfamilyorasmyfriendbecauseIthinkitisunfairtonaturalthings.

Weareallsonsofnature,birthordeathisanaturalthing.Thedayweborn,itdestinedweareindependent.Nobodyhastherighttochangeourselves.IfonedayIweretobeclonedtoanotherperson,hewouldkillme,becauseIlostsomeoriginalcharacters.Ihopeweshouldrespecthumanbeings,andnotchangeanyoriginalthings.

Sampleversion2:

Ithinkthecloningrepresentstheprogressofthemankind.Butitstillhasmanyproblemstoworkout,thelaw,theethicandespeciallythegoalsandpurposesforcloning.However,weareactuallydoingmuchofthisresearchfortheimprovementoflifeforhumans.Weshouldgetbenefitfromcloning.

InChina,thegovernmenthasputoutwrittenpolicyonhumancloning.Ithasofficiallybannedresearchonhumancloningforreproductionpurposes,butallowscloningonembryonicstemcellsandremedialcloning.Asweallknown,everythingcan’tbeperfect.Weshouldtreatthecloningwithcorrectattitudes.Weshouldknowtheadvantagesanddisadvantagesofcloning.

2019-2020年高中英语Unit2第4课时TheFourthPeriodGrammar教案新人教版选修8

Teachinggoals教学目标

1.Targetlanguage目标语言

a.重点词汇和短语

bother,regulation,resist,unable,argument,reasonable,obtain,beboundto,fromtimetotime,bringbacktolife,payoff

b.重点句子

AltogetherDollylivedforsixyears,halfthelengthofthelifeoftheoriginalsheep.

Thefactthatsheseemedtodevelopnormallywasveryencouraging.

2.Abilitygoals能力目标

Enablethestudentstolearnthemodalverbsmust,haveto,havegotto.

3.Learningabilitygoals学能目标

Helpthestudentslearnhowtousethemodalverbsmust,haveto,havegotto.

Teachingimportantpoints教学重点

Theuseofthemodalverbsmust,haveto,havegotto.

Teachingdifficultpoints教学难点

Howtoteachthestudentstomastertheusageofthemodalverbsmust,haveto,havegotto.

Teachingmethods教学方法

Studyindependentlyandpractice.

Teachingaids教具准备

Aprojectorandablackboard.

Teachingprocedures&ways过程与方式

StepⅠRevision

Checkthestudents’homework.

T:

Lastclasswetalkedsomethingaboutcloning.Now,whocanshowyouropinion?

S:

Letmehaveatry.Inmyopinionitiswrongtoclonehumanbeings.Ifmyparentsdecidedtohaveaclonemadeofme,IwouldfeelverysadandIwouldneveracceptthecloneasamemberofthefamilyorasmyfriend.

T:

Goodjob!

StepⅡGrammar

T:

Doyouknowtheappositiveclauses?

Pleasepickoutthreemoreexamplesfromthereadingpassage.

Sampleanswers:

Thefactisthattheyarenaturalclonesofeachother.

Thewholescientificwouldfollowtheprogressofthefirstsuccessfulclone,Dollythesheep.

AltogetherDollylivedforsixyears,halfthelengthofthelifeoftheoriginalsheep.

T:

Nowletmeexplainsomethingabouttheappositiveclauses.Theappositiveclauseisaclauseusedasanappositive.Theclauseisanexplanationtothenounbefore.Theappositiveclausebelongstonounclauses.Mostoftheappositiveclausesmaybeintroducedbytheconjunctionthat.Acontentclauseisfrequentlyinappositionwithsuchnounsasfact,news,idea,thought,question,reply,report,remark,hope,belief,suggestionetc.

Someexamples:

Nobodysharesmybeliefthathewasmad.

Mysuggestionthathewasmadwasnotaccepted.

Theyarefamiliarwiththeopinionthatallmatterconsistsofatoms.

WheredidyougettheideathatIcouldnote?

Wehaven’tyetsettledthequestionwherewearegoingtospendoursummervacation.

Thesuggestioncamefromthechairmanthatthenewruleshouldbeadopted.

T:

Thewordsthefactareofteninsertedinfrontofanobjectclausewhentheclausecannotbeconvenientlyconnectedwiththeverbeitherdirectlyorbymeansoftherepresentativeit.

Thiscannothidethefactthatheisgrowingold.

Wemustfacethefactthatwearelivinginarevolutionaryworld.

Somesupplement