新外研版高中英语选修9《module 2 dna the secret of life》教案doc.docx
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新外研版高中英语选修9《module 2 dna the secret of life》教案doc.docx
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新外研版高中英语选修9《module2dnathesecretoflife》教案doc
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
(1)复习和巩固the/this/now的用法.
Vocabularyandlistening通过听的活动,提高对文章整体的理解能力和听力的概括能力.
Languageinuse
(2)复习和运用was/were,it,much
Readingandvocabulary
(2)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
(1)&
(2)
第四课时:
ReadingandVocabulary
(2),
第五课时:
Readingpractice,Task,ModuleFile
III.Learningstrategy:
1.Cognitivestrategy(认知策略)
2.Monitoringstrategy(调控策略)
3.communicationstrategy(交际策略)
4.resourcestrategy(资源策略)
IV.教学步骤
PeriodOne
Content:
Introduction,Speaking.CulturalCorner
Procedure:
introduction
Step1:
Matchthewordandphrasesintheboxwiththeirmeanings
Looklikeresembletakeafter
1.tohavesimilarphysicalfeaturesassomeoneelselooklike
2.tobesimilartoanolderpersoninyourfamilyinappearanceorpersonality
takeafter
3.aformalwordmeaningtohavesimilarphysicalfeaturesassomeoneelse.Resemble
Step2Workinpairsanddiscuss
thequestions.
1.Whodoyoulooklike,yourmotheroryourfather?
Explainhowyouresemblehim/her.
2.Whodoyoutakeafterinyourpersonality?
Step3Completethesentencesaboutthebodywiththewordsinthebox.
celldiseasesenvironmentgendergeneticsidenticaltwin
1.Somethingthatisfoundinalllivingthingsisa________.
2.A______isoneoftwochildrenbornatthesametimetothesomemother.
3.__________isthestudyofgenes.
4.Some__________areinheritedbutnotallofthem.
5.The_______ofachildisisaboyoragirl.
6.Twinswhoare_________haveexactlythesamegenes.
7.The____________aswellasourgenesmakesuswhoweare.
答案:
celltwinGeneticsdiseasesgenderidenticalenvironment
Step4Discusswhichcharacteristicsyouhaveinheritedfromyourparentsandwhichcharacteristicsareformedbyyourenvironment.
Usethewordsinthebox.
eyesighteyecolorgenehealthheightintelligenceweightpersonality
CulturalCorner
Readthepassageandanswerthequestions.
HowaretheEloiandtheMorlocksdifferentfromeachother?
TheEloiliveaboveground,whiletheMorlocksliveunderground;TheEloiaresmall,beautifulandunabletodophysicalwork,whiletheMorlocksarestrongandwicked.Theirappearancewasverydifferent,too.TheEloiwerehairyonlyontheirheads,whiletheMorlockshadhairdowntheirbacks,too.TheMorlocks’eyesweregrayish-red,whiletheElois’yeswerelargeandmild.
PeriodTwo
Content:
ReadingandVocabulary
(1)
Step1Readparts1and2ofthepassageandanswerthequestions.
1.WhydidWatsonandCricksay,“Wehavediscoveredthesecretoflife”?
BecausetheydiscoveredDNAandthatiswhatgenesaremadeof.
2.DoyouthinkstoriedA-Dinpart2aretrue?
Why?
/whynot?
StoryA
DNAtestingwasmadeastandardprocedureincriminalinvestigations.
StoryB
Usingatechnologycalledgeneticengineering,acouplehadahighlyintelligent,good–lookingbaby.
StoryC
Havingbeeninsertedananimalgene,Markwonallhisraces.
StoryD
Havingbeentestedthattheunbornchildwouldhaveaterrible,inheritedillness,thecoupledecidedtogetridofit.
Step2Readpart3ofthepassageandanswerthequestions.
1.Whatwillgeneticengineeringhelpscientiststodointhenearfuture?
Insertnewgenesintopeopletocreatenewcharacteristics.
2.Whatdoesthewriterfeelaboutthenewdevelopmentsingenetics?
Somethingswouldbepositivebutothersmightchangethebasicnatureofhumanbeings;hefeelswemustbecarefulinmakingdecisions.
Step3Lookatthewordsfromthepassage
commitamurdercouplehereditaryperformanoperationpregnantquestionreproducevictim
1.…howdolivingthingsreproducethemselves?
Thismeans____.
A.tohavebabiesorproduceyoungplantsB.tofeedthemselv
es
2.…ourgenes,whichpasshereditarycharacteristics
ontoourchildren.Thismeans______.
A.newB.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.
advancealterathletebenefitconsequencedevelopmentfieldgood-lookinginsertstructuretechnology
1.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.
1.ThediscoveryofDNAhasbeencalledthemostimportantbiologicalworkofthelast100years.Why?
Becauseithassuchabiginfluenceonourlives.
2.Butwhenhecommittedthemurder,Watersleftsomeofhisowncellsonhisvictim.
Whatwerescientistsabletodoasaresult?
MatchtheDNAinthecellstotheDNAofthesuspect.
3.TwomonthslaterJuliahadasmallbutveryexpensiveoperation…
Whatdoyouthinkthesurgeondid?
4.He’saworldchampionagain…
Whydoesn’tMarkdeservetobeaworldchampion?
Becauseh
eisnota“natural”champion.
5.…hospitaltestsshowedthatherchildwouldhavethisillness.
WhydidClarahavehospitaltests?
Tofindouriftheirunbornchildhadthefamily’shereditarydisease.
6.Anewfutureisapproaching.
Whydoesthewritersaythis?
Becausegeneticeng
ineeringwillbecomeverycommonandchangeeverything.
7.Ontheotherhand,wemaysoonbeabletog
etridofthedisease-
--butkeepthebaby!
Howmightwedothis?
8.…therearemanyimportantissuestodiscuss.
Canyougivesomeexamples?
PeriodThree
Content:
ReadingPractice
Step1Answerthequestions
1.Whatisgeneticallymodifiedfood?
2.HowcanyoutellthedifferencebetweenordinaryfoodandGMfood?
3.HowmuchGMfoodisthereinChina?
4.WhataretheadvantagesofGMfood?
5.Whatarethedisadvantages?
6.WhatshouldwedoaboutGMfoodinChina?
Step2discussion
Notmuchisknownaboutlong-termeffectsofGMfoodonhumansandtheenvironment.Itis“unpredictable”.
Step3Readthetextagainandanswerthefollowingquestions
1.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.
1.(a)…GMfoodisalreadycommonintheUnitedStates.
(b)ChinadoesnotproduceverymuchGMfood…
2.(a)InCanadaandtheUnitedStates,27percentofconsumersfearthatGMfoodcouldbedangerous.
(b)InEurope,amajorityofconsumersareinfavorofbanningthem,and79percentoftheUKpublicopposesGMfood.
3.(a)Chinesecustomsdonotlisttransgenicproductsasanitemrequiringinspection.
(b)ThereforeGMproductsmayenterthecountryfromabroad.
4.(a)NeitheryoungnoroldpeoplefearedpossiblesideeffectsfromGMfoods.
(b)…someparentsofchildrensaidthattheywouldnowpaymoreattentiontofoodlabeling.
Step5:
Answerthequestions
1.Scientistshavefoundthatacropwithagenethatkillspestscanleaveapoisoninthesoilthatkillshelpfulaswellasharmfulinsects.
(a)Whatcanthecropdo?
leaveapoi
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