高中英语-Book9Module2 DNA教学设计学情分析教材分析课后反思

Book9Module2DNA-theSecretofLifeTeachingobjectives:Helpstudentsmastertherelevantwordsandphrasesinthetext;Improvestudents’readingabilities,especiallytheskillofcriticalreading;Strengthenthestudents’abilitytosharingideaswithothers;Teachingprocedures:教学过程Step1

Lead-in(6minutes)Showavideo,andaccordingtoit,letthestudentslistthebenefitspeoplehaveexperienced.InwhichwaysdoestheDNAtechnologyinfluenceourlife?(最后会形成板书prosandcons，cons在学完课文后黑板上补充)todetectadisease/virustoaddressillnesstoidentifyacriminal/one’sownchildtomodifyfoodtodecidewhichoneisinnocentofguiltyStep2LearnthenewWordsrelatedtoDNAhereditary(2minutes)inheritedillnessinvestigateinvestigationgeneticsgenegeneticengineeringinsertalternatureconsequenceconsequentlyidentifyidentificationStep3.

Fastreading(3parts)(1minute)Part1thediscoveryofDNAPart24storiesrelatedtoDNAtestingPart3opinionsofgeneticengineeringStep4.carefulreading(15minutes)ReadPart1WhenwasDNAdiscovered?WhodiscoveredDNA?(giveabriefintroductionofthetwoscientists)WhatisDNA?WhatareGenes?WhatistheinfluenceofthediscoveryofDNA?(fillintheblanks)Askindividualstudentstogivetheanswers.(指出略读的技巧)ReadPart2Thereare4storiesrelatedtoDNA,pleasetellmewhatthemainideasofthepassagesareanddecidewhethertheyaretrueornotandtheirreasons.ReadPart3,andLetthestudentsanswerthefollowingquestionsWhatwillgeneticengineeringhelpscientiststodointhenearfuture?Whatwillhappenifwestartchoosingthecharacteristicsofourbabies?Whatmighttheconsequencesbe?引导学生回答问题，处理信息，同时把不利之处补充到黑板的cons之栏，完成主要板书任务。Additionalinformationwillbeprovidedtobroadenthestudents’horizons.Thetop3positiveaspectsofgeneticengineering1.alterbadgenesinheritedfromparentsinhumanbody2.slowdowntheprocessofagingandincreasethelifespan3.resultinbetterproductshelpinghumansfighttheirdiseasesThetop3negativeaspectsofgeneticengineering1.can’tpredicttheconsequencesoftheinsertedgenes2.Humansarelikelytobecomeextinctwhilegeneticallyengineeredpeoplesurvive3.alternature,whichisimmoralStep5Discussion:Whatisyouropinionaboutthedevelopmentsingeneticsingeneral?Ithinkthey’reveryexciting/wonderful/amazing，because……Ithinkthey’rehorrible/unimaginable/illegal/immoral,because……Ifeelworriedif…学生讨论，并和小组成员交流意见，最后成文。Step6Summary（情感提升）Everycoinhasitstwosides.TheDNAtechnologyhasitsprosandconstoo.Ononeside,Ithinkthedevelopmentsofgeneticengineeringareveryexciting,becausethenewtechnologyischangingourlife.Scientistshavefoundbetterwaystoidentifycriminals,helphumankeephealthy,livelongerandaddressdiseases.Ontheotherside,geneticengineeringalsobringsaboutsomenegativeaspects.Ifanathletesecretlychangehisgenes,itisunfairforothers.Weneedtobeverycarefulbeforewemakedecisionsongeneticengineering.Wedon’tknowwhatconsequencesofthesechangeswillbe.Step7AssignmentCompulsoryWriteanarticleaboutmakinggeneticssafeandbeneficialOptionalSurfontheInternettolistsomeotherimportantdevelopmentsingeneticsBook9Module2DNA-theSecretofLife学情分析我们两个班是普通班的学生，学生基础较好，第九册第二模块的阅读材料是科技发现类文章，理科的学生对其有很大的兴趣。用英文来解释DNA及其发现，来介绍科学家，来表达对科学发展的态度等等，都引发了这些学生的兴趣。虽然高三学生有了一定的阅读量，积累了不少词汇，但大多数学生习惯于逐词、逐句地分析课文，力求弄懂文章中每句话和每个语法点的含义。但是当他们遇到大量的、篇幅较长的文章时，那种逢词必查，逐字逐句分析的阅读方法就显得费时、费力、且效果极差。并且学生对批判性阅读不够关注，认为写在材料中的一定是事实，通过这篇文章的学习，他们也必定开始对文章的事实和观点懂得去批判性分析。高三的学生对概括大意类的问题还是觉得有难度，为此我主要设置了大意类问题和细节问题，进行了有针对的训练。培养了学生进一步用英语获取信息、处理信息、分析问题和解决问题的能力。高三的课堂讲评课居多，所以这次的阅读课，我关注到了高三学生对口语表达的不自信，课堂上我尽可能多的鼓励表扬学生开口，努力保证学生积极而有效的参与，营造良好的参与环境,宽松、和谐、融洽、平等的学习氛围，尽可能留下足够的参与时间和空间，不使学生产生羞怯感和恐惧感。词汇是学生的短板，尤其是词形的变化，为此在设计相关词汇环节，考虑到了我们学生的需要，我对词汇进行了不同词形的补充，通过理解词汇，通过词汇学习加深对文章的理解，促进学生对英语发音的敏感性，帮助学生学会解决问题的实际运用能力。Book9Module2DNA-theSecretofLife效果分析本节课以阅读训练为主，辅以简单的书面练习，学生在掌握与DNA相关词汇、短语与句子的基础上，能够大胆运用所学，介绍DNA的发现，以及对生活的不同影响，关于利与弊，学生交流自己的看法。在学生阅读的过程中点拨阅读技巧，渗透批判性阅读的必要性和捕捉有效信息的技巧和策略，增强了学生阅读的目的性和有效性。Discussion的练习，不仅使学生巩固了所学的基础知识，也提高了口语表达的能力。从这一角度来看，达到了预期目的。在“交流—互动”的教学中，教师启动交流，学生的动是以教师的启动为基础的。教师在讲授新课前对学生作适当的引导，在讲授较难理解的课文前，先向学生介绍一下有关背景知识并提出教学要求，为学生的理解打下良好的基础。教师主要做好引导工作，提前学习相关词汇，扫清学习新知识的障碍，为学习新课提供丰富的感性材料。通过leading-in的视频和创设的问题展开了本课的学习，抓住了学生的兴趣，利用问题导引，大量的相关图片作辅助，围绕话题，激发了学生的求知欲；接着让学生通过阅读相关信息，设置环环相扣的抢答问题，主要是相关的总结大意和细节问题，既调动学习的积极性，又加强对思维方向的自觉控制，提高学生对材料进行理解、分析、加工以及获取信息进而解决问题的实际能力。词汇，语言点和句型的学习难度较小，所以在该环节中我放手让学生自己处理知识点.最后我设置了让学生畅谈利与弊这一环节，虽然在口语表达上存在一定难度，但是学生感兴趣，想说，也愿意说，兴致高昂，气氛热烈，借此，我直接进行了情感升华，鼓励学生爱科学，为国家的科技进步争做贡献。Book9Module2DNA—theSecretofLifeI．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[来源:学。科。网]=2\*ROMANII.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以及基因工程或者其他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,muchReadingandvocabulary(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=3\*ROMANIII.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）王长青老师：今天听了卢燕老师的阅读课—DNA-theSecretofLife，印象深刻，下面简单谈谈我的几点看法。本节课围绕DNA在生活中的使用，老师以学生为中心有针对的设置了一系列有梯度的问题，旨在提高学生的阅读能力，逻辑思维能力以及对语言结构进行理解分析的能力，通过辨认文章提供的信息再次形成自己的看法。这种批判式阅读教学模式，大大提升学生的阅读能力，务实高效；板书设计是亮点，清楚巧妙地罗列了DNA科技带给生活的影响，进步强化了三种利与弊的说法，非常精彩。成艳丽老师：本堂课根据课文内容分为三部分，学生根据老师的设置问题去阅读教材，然后去思考问题，探求知识，准确完整地理解内容；突出重点、突破难点、归纳整理，形成知识体系。使学生掌握一定的阅读方法，并形成良好的阅读习惯，培养学生的阅读素质，让学生学会学习。高红老师：材料新颖，走在科技前沿，学生喜欢。在阅读中强调了个体和合作的有机搭配，突出了学生之间的相互作用，把困难变小，培养了学生团结协助的精神，发展了学生积极向上、民主科学的良好心理品质。体现了任务性教学，以学生为主体,以人的发展为本的教育理念。从这堂课总体设计来看，老师与学生的配合比较好，学生的参与意识好.王玉兰老师:阅读课重视词汇的学习和词形的变化。教师有亲和力。上课时老师始终面带笑容，平等待人，对学生耐心启发，循循诱导，课堂气氛轻松和谐。在这种氛围下能充分发挥学生的积极性和能动性，运用多种教学手段，能用不同手段完应变能力强。课堂永远没有完美的，本节课也有很多不足之处：1.教师过度重视对文章结构和语篇的理解，对词汇的分情景使用重视不够，应该多方利用教学资源，把以前词汇旧意和文中新意相结合，帮学生找出新词与旧词之间的联系，体现高三复习课的新特点。2.学生输入信息充足，教学环节完整，但是输出环节时间较紧张，不够充分，如果再有五分钟，那么课就太完美了。Book9Module2DNA-theSecretofLife评测练习1.Showavideo,andaccordingtoit,letthestudentslistthebenefitspeoplehaveexperienced.InwhichwaysdoestheDNAtechnologyinfluenceourlife?ShowpicturesofJamesWatsonandFrancisCrickandthestructureofDNA.Questions:Doyouknowwhotheyare?_________________________________________________________Whatgreatcontributionsdidtheymaketohumanbeings?_________________________________________________________ReadParts1&2asquicklyasyoucanandtrytoanswerthequestions:What’sthemainideaofPart1?_________________________________________________________OfthefourstoriesinPart2,whichdoyouthinkaretrue?__________________________________________________________4.WhatistheinfluenceofthediscoveryofDNA?WhyisthediscoveryofDNAveryimportant?ThediscoveryofDNA_____________(call)themostbiologicalworkofthelast100years.Ithasalreadyhadandwillcontinuetohaveanenormousinfluence____ourlives.Wehavealreadyexperiencedthe_________inmanyyears(fillintheblanks)5.Whatwillgeneticengineeringhelpscientiststodointhenearfuture?Thenewtechnologyofgeneticengineeringmeansthatscientistswillsoonbeabletoinsertnewgenes_____unbornbabies,childrenoradults.Thesenewgeneswillcreatenew______________.6.Discussion–GroupworkGeneticsisasciencethathasalreadycausedgreatchangesinourlives.Ithasbroughtaboutmanydebatesaswell.Doyouthinkitbringsusmoreadvantagesordisadvantages?Whatdoyouthinkofit?__________________________________________________________________________________________________________________________________________________________________________________________7.Grammar–a/an;the;this;thatReadthesentencesfromthetext,payattentiontotheusageofa/an;the;this;thatWatsonandCrickhadfoundtheanswertooneofthemostimportantquestionsofbiology.Hospitaltestsshowedthatherchildwouldhavethisillness.Thecoupledecidedtogetridoftheunbornbaby.MarkSawyerisatopathlete,andhewantstostaythatway.Wemaybeabletogetridofthedisease—butkeepthebaby.Wouldn’tthatbewonderful?8.Consolidation:JamesWatsonandFrancisCrick(1)__________(成功)inunderstanding(2)_______(a/the)structureofDNAandhowgenesareableto(3)_________(复制)themselves.Thisdiscoveryhashadan(4)__________(巨大的)influenceonourlives.Waters(5)____________(犯罪)amurderandleftsomecellsonhisvictim.LaterhewasarrestedbecausehisDNAmatched(6)________(a/the/that)fromthecells.Juliahadanoperationtohaveanintelligent,good-lookingbaby,usingatechnologycalledgeneticengineering.Asurgeon(7)__________(插入)ananimalgeneintoMark.Afterthathewonallhisraces.Claradecidedtogetridofherunbornbabybecauseitis(8)_________(可能)thatherchildwillbebornwithaterribleillness.课后评测巩固试题及答案一、单词拼写1) Thesceneryhereisalmosti_______totheonethatIsawinEngland.2) Climatechangeshaveseriousc_______forallthepeopleontheearth.3) Hedreamedofearninghisf_____andwealthovernight.4) Heisana________younglawyerandhedreamsofbecomingwell-known5) I’llcontinuetocarryoutther______intogeneticsaftergraduation.6) Screenv_______hasagreateffectonthemindsofyoungviewers.7) Nowisthenewstodayind______.8) Hewasthoughthighlyofformakingthemostimportantd_____inscience.9) Thesepoliciesaretoagreate_____responsibleforthefallingofthepricesofhouses.10) Iftimecouldgobackseveral_______（十年），Iwouldreallyliketobeastudentofyours.二、单项选择1.Youmustwritehome_____evenwhenyoudon’thavemuchtosay.A.moreorlessB.nowandthenC.soonerorlaterD.littlebylittle2.Theemploymentratehascontinuedtoriseinbigcitiesthankstotheeffortsofthelocalgovernmenttoincrease______.(2010北京)A.thenB.thoseC.itD.that3.Wefeel______ourdutytomakeourcountryabetterplace.(2011天津)A.itB.thisC.thatD.one4.Whydon’tyoubring_____tohisattentionthatyou’retooilltoworkon?A.thatB.itC.hisD.him(2011江西)5.—I’vereadanotherbookthisweek.—Well,maybe______isnothowmuchyoureadbutwhatyoureadthatcounts.A.thisB.thatC.thereD.it(2009浙江)6.Ilikeahousewithabeautifulgardeninfront,butIdon’thaveenoughmoneytobuy______.（2009江西）A.oneB.itC.thisD.that7.It’shightimeyouhadyourhaircut;it’sgetting_______.(2009全国)A.toomuchlongB.muchtoolongC.longtoomuchD.toolongmuch8.UsuallyJohnwouldbelateformeetings.Butthistime,_____tomysurprise,hearrivedontime.(2009北京)A.littleB.muchC.everD.even9.Hedoesn’thave______furnitureinhisroom—justanolddesk.(2008陕西)A.anyB.manyC.someD.much10.Thetwogirlsaregettingonverywellandshare_____witheachother.A.littleB.muchC.someD.none(2008安徽)11.ThemoreIthinkabouthim,themorereasonsIfindforlovinghim______Idid.A.asmuchasB.aslongasC.assoonasD.asfaras(2005湖南)12.Asisknowntoall,______People’sRepublicofChinais______biggestdevelopingcountryintheworld.(2011陕西)A．the;不填B.不填;theC.the;theD.不填;不填13.Ifwesitnear_____frontofthebus,we’llhave_____betterview.(2010山东)A.不填;theB.不填;aC.the;aD.the;the14.Somepeoplefearthat_____airpollutionmaybringaboutchangesin_____weatheraroundtheworld.(2009江西)A.不填;theB.the;不填C.an;theD.the;a15.You‘dbetterremember_______:Smiletoeveryone.A.it B.that C.what D.this三、完成句子1.John,__________________(像他父亲)，istakingoverthebusinessofhisfamily.2.Whatparentssayanddo____________________________________(的确对孩子有极大的影响)3.Thedoctororderedtheinjuredsoldiers________________________(马上做手术)4.Hewastoocareless,and___________________________(结果)，hefailedthetest.5.Hissuccessdepended_____________________________________________(在很大程度上得益于家人的支持)6.Wecan______________________________(相信)thatscientistswillfindalternativeresourcesforusinthefuture.7.I______________________________________(赞成你设法赚钱),butpleasedon’tneglectyourstudies.8.Allthememberspresent_____________________________(坚决反对这个计划).四、阅读理解Scientistscontinuetosearchforgeneticanswerstowhysomepeoplelivealongtime.Onestudyhasnowexaminedmorethanfourhundredandfiftypeoplebetweentheagesofninety-fiveandonehundredandten.ResearchersattheAlbertEinsteinCollegeofMedicineofYeshivaUniversityinNewYorkrecentlyreportedthelatestfindings.Thestudylookedatchangesingenesthatgovernanimportantcell-signalingpathway.Thesegenesareinvolvedintheactionofahormonethataffectsalmosteverykindofcellinthebody.Thehormoneiscalledinsulin(胰岛素)-likegrowthfactor,orIGF-one.Otherresearchershavefoundthatmutations(变异)tothegenescausetwoeffectsinanimals.Theanimalsdonotgrowasbigasothersoftheirkindbuttheylivelonger.TheEinsteinteamwonderedifthesechangesmightalsoinfluencehowlonghumanslive.SotheylookedforthemutationsintheirstudygroupofAshkenazi,orEasternEuropean,Jews.AshkenaziJewsaremoregeneticallysimilarthanmostothergroups,soanydifferencesareeasiertofind.TheresearcherscomparedthefindingstootherAshkenaziJewswhosefamilymembersdidnotliveaslong.Inthecontrolgroup,theysay,noonehadthemutations.Yeteveninthestudygroup,wheretheaverageagewasonehundred,onlytwopercentofthepeoplehadthem.Inotherwords,therearemoreanswerswaitingtobefound.Inrecentyears,thescientistshaveevenidentifiedso-calledlongevitygenes.ThelatestfindingswerepublishedintheProceedingsoftheNationalAcademyofSciences.Themutationswerefoundmostlyinwomen.Daughtersofthosewholivedtobeonehundredhadhigherlevelsofthehormonethanpeopleinthecontrolgroup.Andtheywereanaverageoftwoandahalfcentimetersshorter.AdrugthatdecreasestheactionoftheIGF-onehormoneiscurrentlybeingtestedasacancertreatment.NirBarzilai,leaderoftheEinsteinstudy,saysthedrugcouldbeusefulindelayingtheeffectsofaging.Buthenotedthatthesubjectsinthestudywerebornwiththeirmutations.Soitisnotclearwhetherthedrugwouldhelppeoplewhoreceiveitlater.DoctorBarzilaialsopointsoutthatmanypeoplearereceivingtreatmentswithhumangrowthhormonetotrytodelaytheeffectsofaging.Yethesaysiflowgrowth-hormoneactionextendslife,asthenewfindingssuggest,thenhewondersifgettingmoreofitcouldshortenlife.1.Accordingtothepassage,thelongevityofapersonisdecidedby___________A.longevitygenesB.takingdrugsC.hormoneD.livinghabits2.WhichofthefollowingstatementsisnotTRUE?A.Allbiganimalsdon’tlivelongerthansmallanimalsB.Scientistshavefoundthesecretwhysomepeoplelivealongtime.C.Onlytwopercentofthepeopleoveronehundredhadthemutations.D.AdrugthatdecreasestheactionoftheIGF-onehormoneiscurrentlybeingtestedasacancertreatment3.What’stheattitudeoftheauthortowardsgrowth-hormoneaction?A.approvalB.doubtfulC.optimisticD.indifferent4.Inwhichcolumncanyoufindthearticle?A.health B.science C.film D.sports试题答案：一、单词拼写1.identical2.consequences3.fortune4.ambitious5.research6.violence7.detail8.discoveries9.extent10.decades二、单项选择1-5BCABD6-10ABBDB11-15ACCAD三、完成句子1.whotakesafterhisfather2.doeshaveagreatinfluenceonthechildren3.beoperatedonatonce/tobeoperatedonatonce4.asaconsequence5.toagreatextentonthesupportofhisfamily6.relyonit7.approveofyourtryingtomakesomemoney8.opposetheplanbitterly四、阅读理解ABBB课堂亮点：1导入时有任务驱动以和本文极其接近的视频为导入，看视频前，先给学生问题，有任务的引领着看视频，围绕本文主题，为后面的说和写的输出进行输入。任务驱动非常明显。2问题引领，环环相扣我以问题引领学生寻找答案，扫清词汇障碍。在阅读文章中对导入的相关词汇行了深层挖掘，并变化形式，强化了学生的基础词汇。并针对长难句设置问题，帮助学生理解，并细致的分析了长难句的结构。并不失时机的对这些长难句进行口头输出。又为后面的信息输出埋下了伏笔。整个DetailedReading是面的输入，而不是点的输入。每一步输入都为下一步服务，步步过渡自然。真正培养了学生获取处理信息的能力。课