高二英语必修五Unit 1 Great scientists教案Word文档格式.docx

1、amp;difficultpoints教学重难点Talkaboutscienceandscientists.Teachingmethods教学方法Task-basedactivities.Teachingaids教具准备Acomputerandaprojector.Teachingprocedures&ways教学过程与方式StepLead-inAskthestudentstothinkofsomegreatinventionsandinventorsinhistory.T:welcomebacktoschool,everyone.Iguessmostofyouhaveenjoyedyourh

2、oliday.maybeIshouldsayeveryonehasenjoyedascientificlife.why?Becauseyouhaveenjoyedtheresultsofthescienceandscientists.Nowcanyoutellmethescientistswhoinventedthelights,thegramophoneandthecomputer?S1:Edisoninventedthelightsandthegramophone.S2:ThefirstcomputerwasinventedbyagroupofAmericanscientists.Step

3、warmingupFirst,asksomequestionsaboutgreatscientists.Second,askallthestudentstotrythequizandfindoutwhoknowsthemost.youknowourlifeiscloselyrelatedtoscienceandscientists.webenefitalotfromthem.canyounameoutasmanyscientistsaspossible?Newton.watt.S3:Franklin.Sampleanswers:.Archimedes,AncientGreek,amathema

4、tician.2.charlesDarwin,Britain.ThenameofthebookisoriginofSpecies.3.ThomasNewcomen,British,aninventorofsteamengine.4.Gregormendel,czech,abotanistandgeneticist.5.mariecurie,PolishandFrench,achemistandphysicist.6.ThomasEdison,American,aninventor.7.LeonardodaVinci,Italian,anartist.8.SirHumphryDavy,Briti

5、sh,aninventorandchemist.9.ZhangHeng,ancientchina,aninventor.0.StepperHawking,British,aphysicist.StepPre-readingGetthestudentstodiscussthequestionsonpage1withtheirpartners.Thenaskthestudentstoreporttheirwork.Encouragethestudentstoexpresstheirdifferentopinions.Now,class,pleaselookattheslide.Discussthe

6、sequestionswithyourpartners.ThenIllasksomestudentstoreporttheirwork.Showthefollowingonthescreen.whatdoyouknowaboutinfectiousdiseases?whatdoyouknowaboutcholera?Doyouknowhowtoproveanewideainscientificresearch?whatorderwouldyouputthesevenin?justguess.Sampleanswer1:Letmetry.Infectiousdiseasescanbespread

7、easily.Theyhaveanunknowncauseandmaydogreatharmtopeople.Peoplecouldbeexposedtoinfectiousdiseases,somayanimals,suchasbirdflu.AIDS,SARSareinfectiousdiseases.S4:Infectiousdiseasesaredifficulttocure.Sampleanswer2:Iknowsth.aboutit.Firstweshouldfindtheproblem.Then,thinkofasolution.weshouldcollectasmuchinfo

8、rmationaspossible.Analyzingresultsisthemostimportantstage.Beforewemakeaconclusion,itisnecessaryforustorepeatsomestagesorprocesses.Sampleanswer3:Ithink“Findaproblem”shouldbethefirststage.“makeupaquestion”shouldfollowthefirststage.“Thinkofamethod”,“collectresults”and“Analyzeresults”areafterthat.ofcour

9、se,before“makeaconclusion”,weshould“Repeatifnecessary”.welldone!whenwewanttosolvesomeproblems,firstweshouldfindouttheproblem,dosomeresearchonit,proveyourfindings,andthenmakeaconclusion.Thisisascientificandobjectivewayofresearching.NowletsseehowdoctorjohnSnowdidhisresearch.StepReadingLetthestudentssk

10、imthewholepassageandtrytoworkoutthemeaningsofthenewwordsandstructuresusingcontext.TheeffectofcholerainthenineteenthcenturyLondonwasdevastating.manypeoplediedwithoutknowingthereason.ItwasdoctorjohnSnowwhosavedthepeople.Pleaselookatthescreen.Letsreadthewholepassageandfindanswerstothequestions.Showtheq

11、uestionsonthescreen.whatconditionsallowedcholeradevelop?2.whydoyouthinkpeoplebelievedthatcholeramultipliedintheairwithoutreason?3.whatevidencedidjohnSnowgathertoconvincepeoplethatidea2wasright?Thedirtywatermadethecholeradevelopquickly.Becausepeoplecouldnotunderstanditscauseandcouldnotgetitcured.Sope

12、opleimaginedthatsomepoisonousgasintheaircausedthedeaths.Hefoundthatmanyofthedeathswerenearthewaterpumpwhilesomeareasfarawayfromthewaterpumphadnodeaths.Sowhenpeoplewereaskednottousethewaterpump,thediseasebegantoslowdown.Inthisway,johnSnowhadshownthatcholerawasspreadbygermsandnotinacloudofgas.StepText

13、analyzingAskthestudentstoanalyzethetextingroups.Nowclass.canyoutellmewhatstyleofthepassagebelongsto?Ithinkitisareport.Pleaselookatthechartonthescreen.ThechartshowsthateachparagraphofthetextexplainsjohnSnowsstagesinhisresearch.Pleasereadthetextandfindoutthegeneralideaofeachparagraphandmatchthestagewi

14、theachparagraph.Discussitingroups,andthenreportyouranswers.ParagraphsStagesGeneralideas234567mygroupsopinionisthis:stageone“Findaproblem”isexpressedinparagraphone.Thegeneralideaislikethis:johnSnowwantedtofindthecausesofcholera.ouranswerislikethis:paragraphtwoexpressesthesecondstage“makeupaquestion”.

15、Thegeneralideaislikethis:johnSnowwantedtoprovewhichtheorywascorrect.“Thinkofamethod”isthethirdstage.Anditiscontainedinparagraphthree.Thegeneralideaislikethis:johnSnowcollecteddataonthosewhowereillordiedandwheretheygottheirwater.Thefourthstage“collectresults”liesinparagraphfour.Itsgeneralideaisliketh

16、is:johnSnowplottedinformationonamaptofindoutwherepeoplediedordidnotdie.S5:ourgroupbelieveparagraphfivecontainsthefifthstageofjohnSnowsresearch.Thegeneralideaislikethis:johnSnowanalysedthewatertoseeifthatwasthecauseoftheillness.Sothisstageisto“Analysetheresults”.S6:Thesixthstageis“Repeatifnecessary”.

17、Itiscontainedinthesixthparagraph.Thegeneralideaislikethis:johnSnowtriedtofindotherevidencestoconfirmhisconclusion.S7:Thelastparagraphisabouttheseventhstage“makeaconclusion”.Itsgeneralideaislikethis:ThepolluteddirtysourceofdrinkingwaterwastoblameforthecauseoftheLondoncholera.Asksomestudentstoputtheir

18、answersinthechart.ParagraphFindaproblemThecausesofcholeramakeupaquestionThecorrectorpossibletheoryThinkofamethodcollectdataonwherepeoplewereillanddiedandwheretheygottheirwatercollectresultsPlotinformationonamaptofindoutwherepeoplediedordidnotdieAnalysetheresultsAnalysethewatertoseeifthatisthecauseof

19、theillnessRepeatifnecessaryFindotherevidencestoconfirmhisconclusionmakeaconclusionThepolluteddirtysourceofdrinkingwaterwastoblameforthecauseoftheLondoncholeraStepHomework.Getmoreinformationaboutsomeinfectiousdiseasesandmodernscientists.2.FinishtheExercises1,2,3onpages3and4.教后反思：在高考阅读中，常常会出现对文中单词或词组词

20、义的猜测，在平时的阅读教学中如何渗透对学生这一方面能力的培养，也是教师应该思考的一个问题。平时有意识地培养猜词的能力，根据词根，上下文等，尤其要注意单词及词组在上下文中的含义，而不是仅仅它的字面含义。同样，在高考阅读中还经常会有深层理解题，如whatcanyouinferfromthesecondparagraph?所以阅读的要求不能仅停留在表面含义，更应挖掘潜藏的内涵。在教学中，也应充分应试技巧的训练和培养。这节课也有一些亮点，比如：1.这节阅读课上出了英语新课程标准的理念。在阅读之前先对内容进行预测，这符合阅读的一般规律，在阅读之前首先在头脑中形成一个信息包，为阅读做好准备。2.这节阅读课把应试教育和素质教育结合起来了。首先，在阅读时注重篇章的理解，帮助学生理解结构（Briefintroduction,Bodyandconclusion）。其次，难句的突破在课文理解中带出，不是为了难句去讲难句。