学习实践The Secret of Life教案.docx

学习实践The Secret of Life教案.docx

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学习实践TheSecretofLife教案

TheSecretofLife教案

　　TheSecretofLife教案

　　Book9module2

　　DNA—theSecretofLife

　　I．教学内容分析

　　本模块介绍了关于DNA的研究现状、最新成果并对未来这一高科技领域的发展进行展望,进一步激发学生探索生命科学的兴趣,培养学生团结协作的科学素养,帮助学生辨证思考转基因\克隆等高科技发展可能给人类带来的益处和负面效应以及相应的道德挑战.

　　语言知识目标:

词汇,语法以及话题—DNA以及基因工程

　　II.语言技能目标

　　听:

能识别所学词语和结构,听懂包含这些词语和结构的句子、段落的意义并获取信息；能听懂篇章内容并获取信息；能听懂关于DNA以及基因工程或者qita科学进展的来自其他资源的相关信息.

　　说:

能流利说出含有本模块词语和结构的句子、段落；能进行谈论科学发现的对话；能熟练完成本模块不知的讨论任务。

　　读：

能理解含有本模块所学词语和结构的句子、段落并获取信息；能理解模块提供的和来自同学及其他资源的相关信息并通过有一定难度的练习对阅读内容进行预测、理解、对比、分析、综合等加工，提高阅读能力。

　　写：

能熟练写出包含所学词语和结构的句子、段落；能完成模块所要求的短文写作和其他书面练习。

　　Introduction通过讨论初步感知遗传学的概念，接触有关词汇，完成测验。

　　ReadingandVocabulary

（1）通过阅读,学习掌握和初步运用有关词语;分析课本内容,做出合理的推测和判断;并就阅读内容展开讨论.

　　Languageinuse复习和巩固the/this/now的用法.

　　Vocabularyandlistening通过听的活动,提高对整体的理解能力和听力的概括能力.

　　Languageinuse复习和运用was/were,it,much

　　Readingandvocabulary了解现代遗传学的发展以及可能带来的相关问题;学习和初步运用有关的词汇;提高阅读能力.

　　culturalcorner通过阅读科幻小说<<时光机器>>所描述的两种生物,进一步激发学生对生命奥秘的兴趣.

　　II．教学计划

　　本模块分为五个课时：

　　第一课时：

Introduction，Presentationskill,culturalcorner

　　第二课时：

ReadingandVocabulary

（1）

　　第三课时：

Languageinuse&

　　第四课时：

ReadingandVocabulary,

　　第五课时：

Readingpractice，Task，moduleFile

　　III.Learningstrategy:

　　.cognitivestrategy

　　2.monitoringstrategy（调控策略）

　　municationstrategy（交际策略）

　　4.resourcestrategy（资源策略）

　　IV．教学步骤

　　Periodone

　　content:

Introduction，Speaking．culturalcorner

　　Procedure:

introduction

　　Step1:

matchthewordandphrasesintheboxwiththeirmeanings

　　Looklike

　　resemble

　　takeafter

　　.tohavesimilarphysicalfeaturesassomeoneelse

　　looklike

　　2.tobesimilartoanolderpersoninyourfamilyinappearanceorpersonality

　　takeafter

　　3.aformalwordmeaningtohavesimilarphysical

　　featuresassomeoneelse.Resemble

　　Step2workinpairsanddiscussthequestions.

　　.

　　whodoyoulooklike,yourmotheroryourfather?

Explainhowyouresemblehim/her.

　　2.

　　whodoyoutakeafterinyourpersonality?

　　Step3completethesentencesaboutthebodywiththewordsinthebox.

　　cell

　　diseases

　　environment

　　gender

　　genetics

　　identical

　　twin

　　.Somethingthatisfoundinalllivingthingsisa________.

　　2.A______isoneoftwochildrenbornatthesametimetothesomemother.

　　3.__________isthestudyofgenes.

　　4.

　　Some__________areinheritedbutnotallofthem.

　　5.The_______ofachildisisaboyoragirl.

　　6.Twinswhoare_________haveexactlythesamegenes.

　　7.The____________aswellasourgenesmakesuswhoweare.

　　答案:

cell

　　twin

　　Genetics

　　diseases

　　gender

　　identical

　　environment

　　Step4Discusswhichcharacteristicsyouhaveinheritedfromyourparentsandwhichcharacteristicsareformedbyyourenvironment.

　　Usethewordsinthebox.

　　eyesighteyecolor

　　gene

　　health

　　height

　　intelligenceweightpersonality

　　culturalcorner

　　Readthepassageandanswerthequestions.

　　HowaretheEloiandthemorlocksdifferentfromeachother?

　　TheEloiliveaboveground,whilethemorlocksliveunderground;TheEloiaresmall,beautifulandunabletodophysicalwork,whilethemorlocksarestrongandwicked.Theirappearancewasverydifferent,too.TheEloiwerehairyonlyontheirheads,whilethemorlockshadhairdowntheirbacks,too.Themorlocks’eyesweregrayish-red,whiletheElois’yeswerelargeandmild.

　　PeriodTwo

　　content:

ReadingandVocabulary

（1）

　　Step1Readparts1and2ofthepassageandanswerthequestions.

　　.whydidwatsonandcricksay,“wehavediscoveredthesecretoflife”?

　　BecausetheydiscoveredDNAandthatiswhatgenesaremadeof.

　　2.DoyouthinkstoriedA-Dinpart2aretrue?

why?

/whynot?

　　StoryA

　　DNAtestingwasmadeastandardprocedureincriminalinvestigations.

　　StoryB

　　Usingatechnologycalledgeneticengineering,acouplehadahighlyintelligent,good–lookingbaby.

　　Storyc

　　Havingbeeninsertedananimalgene,markwonallhisraces.

　　StoryD

　　Havingbeentestedthattheunbornchildwouldhaveaterrible,inheritedillness,thecoupledecidedtogetridofit.

　　Step2Readpart3ofthepassageandanswerthequestions.

　　.whatwillgeneticengineeringhelpscientiststodointhenearfuture?

　　Insertnewgenesintopeopletocreatenewcharacteristics.

　　2.whatdoesthewriterfeelaboutthenewdevelopmentsingenetics?

　　Somethingswouldbepositivebutothersmightchangethebasicnatureofhumanbeings;hefeelswemustbecarefulinmakingdecisions.

　　Step3Lookatthewordsfromthepassage

　　commitamurder

　　couple

　　hereditary

　　performanoperation

　　pregnant

　　question

　　reproduce

　　victim

　　.…howdolivingthingsreproducethemselves?

　　Thismeans____.

　　A.tohavebabiesorproduceyoungplants

　　B.tofeedthemselves

　　2.…ourgenes,whichpasshereditarycharacteristicsontoourchildren.

　　Thismeans______.

　　A.new

　　B.inheritedfromparents

　　3.Althoughthepolicequestionedhim…

　　Thismeans_______.

　　A.towonderaboutsomeone

　　B.toasksomeonequestions

　　4.Butwhenhecommittedthemurder…

　　Thismeans_______.

　　A.killedtheman

　　B.sawthedeadman

　　5.…watersleftsomeofhisowncellsonhisvictim.

　　Thismeans______.

　　A.thepersonheattacked

　　B.hisownclothes

　　6.Aboutsixmonthsago,marksecretlyvisitedasurgeon,whoperformedanoperationonhim.

　　Thismeans________.

　　Amarkhadanoperation

　　B.thesurgeonsaidmarkshouldhaveanoperation

　　7.DamianPetersonandhiswifeclaraareanothercouple…

　　Thismeans______.

　　A.twopeoplewhoaremarried

　　B.example

　　8.whenclarabecamepregnant…

　　Thismeans_______.

　　A.becameworried

　　B.wasgoingtohaveababy

　　Step4Readthroughthewordsinthebox,andpayattentiontothestress.

　　advancealterathletebenefitconsequencedevelopmentfield

　　good-looking

　　insert

　　structure

　　technology

　　.

　　whatisanotherwordfor

　　A.athlete

　　B.consequence

　　c.alter

　　D.field

　　E.good-looking

　　2.Doesaplanthaveastructure?

　　yes,itdoes.

　　3.whatarethebenefitsoflearningEnglish?

　　Internationalcommunication.

　　4.canyouthinkofatechnologythatisusedinbusiness?

　　computertechnology.

　　5.whichtwowordsintheboxcanhavemoreorlessthesamemeaning?

　　advance,development

　　6.Ifyouinsertsomething,whatdoyoudo?

　　Putitintosomethingelse.

　　Step6Findthesesentencesandphrasesinthepassage.

　　.ThediscoveryofDNAhasbeencalledthemostimportantbiologicalworkofthelast100years.why?

　　Becauseithassuchabiginfluenceonourlives.

　　2.Butwhenhecommittedthemurder,watersleftsomeofhisowncellsonhisvictim.

　　whatwerescientistsabletodoasaresult?

　　matchtheDNAinthecellstotheDNAofthesuspect.

　　3.Twomonthslaterjuliahadasmallbutveryexpensiveoperation…

　　whatdoyouthinkthesurgeondid?

　　4.He’saworldchampionagain…

　　whydoesn’tmarkdeservetobeaworldchampion?

　　Becauseheisnota“natural”champion.

　　5.…hospitaltestsshowedthatherchildwouldhavethisillness.

　　whydidclarahavehospitaltests?

　　Tofindouriftheirunbornchildhadthefamily’shereditarydisease.

　　6.Anewfutureisapproaching.

　　whydoesthewritersaythis?

　　Becausegeneticengineeringwillbecomeverycommonandchangeeverything.

　　7.ontheotherhand,wemaysoonbeabletogetridofthedisease---butkeepthebaby!

　　Howmightwedothis?

　　8.…therearemanyimportantissuestodiscuss.

　　canyougivesomeexamples?

　　PeriodThree

　　content:

ReadingPractice

　　Step1Answerthequestions

　　.

　　whatisgeneticallymodifiedfood?

　　2.

　　HowcanyoutellthedifferencebetweenordinaryfoodandGmfood?

　　3.

　　HowmuchGmfoodisthereinchina?

　　4.

　　whataretheadvantagesofGmfood?

　　5.

　　whatarethedisadvantages?

　　6.

　　whatshouldwedoaboutGmfoodinchina?

　　Step2discussion

　　Notmuchisknownaboutlong-termeffectsofGmfoodonhumansandtheenvironment.Itis“unpredictable”.

　　Step3Readthetextagainandanswerthefollowingquestions

　　.Istransgenicfoodthesameasgeneticallymodifiedfood?

　　yes.

　　2.whatistheriskofproducingaGmcropwhichkillspests?

　　Itwillkillgoodinsectsaswell.

　　3.whyistheriskfromcarcinogensreducedinGmfood?

　　Becausetherearefewertracesofcancerinducingpesticidesinthefood.

　　4.whatistherisktosomeonewhoisallergictoaparticulargene?

　　Ifthatgeneistransferredtoanotherfood,andtheallergicpersondoesn’tknow.

　　5.HowdoestheamountofGmfoodintheUScomparewiththenumberofpeoplewhothinkit’sdangerous?

　　30﹪ofmaize,50﹪ofSoyabeans,50﹪ofpotatoesandtomatoesareGm,and27﹪ofconsumersareworriedaboutthedangersofGm.

　　6.HowcouldGmfoodbestoppedfromenteringchina?

　　Byhavingthecustomsinspectallimportedfoods.

　　7.Howdidthewriterknowthatthereweren'tanyimportedGmfoodsinthemarkets?

　　Theydidabigsurvey.

　　8.whatactionisgoingtobetakenaboutGmfoodsinchina?

　　Foodsaregoingtobelabeled.

　　9.Doyouthinkthewriteragreeswiththisaction?

　　yes.

　　Step4Lookatthesepairsofsentencesfromthepassage.Decideifthesecondsentenceaddstoorcontrastswiththeinformationinthefirstsentences.

　　.…GmfoodisalreadycommonintheUnitedStates.

　　chinadoesnotproduceverymuchGmfood…

　　2.IncanadaandtheUnitedStates,27percentofconsumersfearthatGmfoodcouldbedangerous.

　　InEurope,amajorityofconsumersareinfavorofbanningthem,and79percentoftheUkpublicopposesGmfood.

　　3.chinesecustomsdonotlisttransgenicproductsasanitemrequiringinspection.

　　ThereforeGmproductsmayenterthecountryfromabroad.

　　4.

　　NeitheryoungnoroldpeoplefearedpossiblesideeffectsfromGmfoods.

　　…someparentsofchildrensaidthattheywouldnowpaymoreattentiontofoodlabeling.

　　Step5:

Answerthequestions

　　.Scientistshavefoundthatacropwithagenethatkillspestscanleaveapoisoninthesoilthatkillshelpfulaswellasharmfulinsects.

　　whatcanthecropdo?

　　leaveapoisoninthesoil.

　　whatdoesthecropcontain?

　　agenethatkillspests

　　whatcanthepoisoninthesoildo?

　　killshelpfulaswellasharmfulinsects

　　2.yetreducingtheamountofinsecticidesneededbyusingGmcropscanreducetheamountofcancerproducingchemicals---orcarcinogens---thatarefoundinfood.

　　Howcanyoureducetheamountofinsecticidesneeded?

　　byusingGmcrops

　　whatneedsinsecticides?

　　thecrops

　　whatcanreducecancerproducingchemicals?

　　usinglessinsecticides

　　3.Ifagenethatproducesanallergicreactionistransferredintoanothercrop,thenapersonwhousuallyavoidsfoodcontainingthisgenemaynotknowthatitisnowpresentinthemodifiedfood.

　　whatkindofgeneisit?

　　onewhichcausesanallergicreaction

　　whatkindofpersonisit?

　　apersonwhousuallyavoidsthosefoods

　　whatmightthispersonnotknow?

　　thattheGmfoodhasthatgeneinit

　　4.Unfortunately,the“AgriculturalorganismsT