高中英语-Cloning教学课件设计

Unit2CloningReading

CLONING:WHEREISITLEADINGUS?:Teachinggoals（教学目标）教学目标1.知识目标:Tolearnsomeinformationaboutcloning,theprocedureofcloninganimalsandadvantage&disadvantageofcloning.2.能力目标:Todevelopreadingability&practicewri-tingapassageaboutpositiveandnegativepointofview.3.情感目标:Tobuildapositiveattitudetowardcloning.Teachingkeypoints&difficultpoints（教学重难点）教学重点教学难点1.Findoutthemainideaofeachparagraph&thetext2.Knowwhatcloneisandit'stwomajoruses

1.Learnhowcloningworksinmammals.2.Discusstheadvantage&disadvantagesofcloningTeachingprocedures（教学步骤）教学步骤Step1:Leading-inStep2:FastreadingformainideaStep3:Carefulreadingfordetails.Step4:Readingforspeakingandwriting.Step5:Summary:whatwehavelearned.Step6:Homework.Step1:Leading-inlookatthefollowingpictures.Aretheynaturalcloneorman-madeclone?Theyare_______,bornnaturally

Natural

clonetwinsStep1:Leading-inNatural

clone一株草莓依靠它沿地“爬走”的匍匐茎,一年内就能长出数百株草莓苗。StrawberryplantStep1:Leading-inStep1:Leading-in第一只克隆宠物猫cloned

rabbitandhorse

克隆的荧光小猪(左)和正常小猪(右)克隆马及其“母亲兼姐姐”clonddogandpigman-madecloneTheworld’sfirstclonedcat.Itwascreatedusingacelltakenfromanadultcat,Rainbow.man-madecloneStep1:Leading-inTheworld’sfirstclonedmule(驴),

bornonMay4.Heiscreatedfromacellofhisbrother.man-madecloneStep1:Leading-inStep1:Leading-inAnotherclonedanimalsinthefilm,wanttoenjoy?Step1:Leading-inStep1:Leading-inDoyouknowthenameofthefilm?JurassicWorldII(侏罗纪世界2)

cloneddinosaursItwillbeonshowon

June22th，2018(abroad)Today'sroleisthemostfamoussheepintheworld.Name?Othersheepwerebornnaturally,whileDollyis________,itisthecopyofanothersheep.Step1:Leading-in2.DoyouknowhowDollyisdifferentfromothersheep?DollyclonedStep1:Leading-inDollyanditscreator,aScottishscientistStep1:Leading-inWanttolearnmoreaboutcloningandDolly?

Reading

CLONING:WHEREISITLEADINGUS?1.Matchthemainideawitheachparagraph.Para1:A.Dolly'sproblemanddeath.Para2:B.Whatiscloning?Para3:C.Twomajorusesofcloning.Para4:D.ArgumentsbroughtbyDolly.Para5:E.TheeffectofDolly'sappearance

Step2:Fastreadingformainidea.主旨大意题SkimmingthetexttofinishthefollowingtwoquestionsSkimming--usedtounderstandmainidea

略读(快速浏览全文或段落的阅读方法—用于了解主旨大意略读的目的是：(1)了解文章的主题；(2)对文章的结构获得一个整体概念；(3)对各部分的内容获得一个粗略的印象；(4)对文章主旨做出判断。对快速阅读而言，略读最重要的意义在于对各部分的内容获得一个粗略印象，以便在后面的问题中迅速确定答案所在的部分或段落。方法点拨：注意文章的标题、段落的小标题、首段、尾段、每段的段首句、段尾句、关键词...2.Themainideaofthetextis______?

A.AnimalcloningisveryvaluableandcanbenefittheworldB.AnimalcloningcouldbemisusedbybadpeoplesoitmustbeforbiddenC.AnimalcloningiswelldevelopedbecauseDollythesheepwasbornD.Animalcloningraisedargumentsandscientistsarenotsureaboutitsfuture主旨大意题

Step2:Fastreadingformainidea.

Step2:Fastreadingformainidea.Whereisthetopicsentence?:thecircledsentencesinthetext首段、段首句1.文章标题段首句主题句2.3.段首句4.段首句5.段首句尾段段尾句Para1&Para21.Cloningisawayofmakingan_____copyofanotheranimalorplant,ithappensbothin________andin_______.plantsanimalsNatural

cloningMan-madecloning

Step3:CarefulreadingfordetailsexactPara1&Para2

Step3:Carefulreadingfordetails2.Whichofthefollowingstatementsisright?

(细节理解）A.Cloningisawayofmakingacopyofanotheranimalorplant.B.ThelambisthecloneoffamalesheepCC.Gardenersusecloningtoproducequantitiesofplantsjustforfun.D.It’sacomplicatedtasktocopyanimals点拨：注意限定成分原句...sheepB,whichprovidesnucleus.原句...commercial...商业的原句...anexactcopy...★3.Retelltheprocedureofthecloneofsheepaccordingtothepicturenextpage.

Step3:Carefulreadingfordetails产出有核卵细胞eggcell无核卵细胞体细胞asomaticcell取出细胞核nucleus用电融合细胞代孕母羊细胞分裂形成胚胎embryoPara2:Theprocedureofthecloneofasheepthelamb

Step3:Carefulreadingfordetails1.Itcanbeinferredfromthepassagethataclonedanimal_________.

.A.usuallylivesaslongastheoriginaloneB.usuallyliveslongerthantheoriginaloneC.usuallydiesearlierthantheoriginaloneD.isusuallyashealthyastheoriginalone

Step3:Carefulreadingfordetails方法点拨Scanning(跳读):justreadforwhatisneeded原句回放:Dollylivedsixandahalfyears,halfthelengthofthelifeoftheoriginalsheep.(line15,para3)推理判断

Step3:Carefulreading

(1).Alltheresearchintohumanbeingswillbeforbidden.

(2).Somecountrieswillusecloninginawiseway.

Para5:

FT技巧点拨：payspecialattentiontosuchwordsas

‘all/some/always/never’onsoon.2.Trueorfalse:原句回放：Somebegantoreformtheirlegalsystemsandforbaderesearchintohumanbeings.（line25para5)1.Discussion:

Whatareadvantagesanddisadvantagesofcloning?

Step4:Readingforspeakingandwritingadvantagesofcloning

___________________________disadvantagesofcloning___________________________AB

DCE

F

2.Deepthought:

Whetherwillcloninghelporharmusand

whereisitleadingus?

Step4:ReadingforspeakingandwritingThere'snorightorwrongincloningitself,thepointisthathowwethinkaboutit.Weshouldhaveapositiveattitudetowarditanduseitwiselytoservethepeople.Onlyinthiswaycancloninghelpus.evilleadersextinctanimalsnewplantspeciesorTheformerorthelatter?Yourownopinion?Areyoufororagainstit?Why?

Step4:Readingforspeakingandwriting3.Writing:在学习了“克隆”这一单元后，我们班同学展开了关于“克隆的利与弊”的激烈讨论，不同的人持有不同的观点。请根据下面的中文提示，用英语写一篇短文。

观点理由

支持者

利大于弊1.2.

反对者

弊大于利1.2.

你的观点

Step4:ReadingforspeakingandwritingAmodelfor

Positiveandnegativepointofview正反观点模板:第一段:提出主题Recently,aheateddiscussionabout①___________wascarriedoutin

our

class.People’sopinionsvaryfrompersontoperson.第二段：支持者观点及理由Somepeopleheldtheviewthatitsadvantagesoutweigheddisadvantages(主题句）.Firstly,②________________Secondly,③__________(扩展句-理由②③

）第三段：反对者观点及理由However,othersputforwardtheoppositeidea（主题句）.Firstofall,④________What’smore，⑤_______________（扩展句-理由④⑤）第四段：你的观点及看法AsfarasIamconcerned,everycoinhastwosides,onlyifwe⑥_________can_____.?1).Reading________