人教版普通高中英语必修二Unit 3教案

高一英语Unit3computers教案TeachingplanforI.TeachingGoals:1.Talkaboutcomputers2.Describethingsandhowtheywork3.Giveadviceandmakesuggestions4.UsethePresentContinuousPassiveVoice.II.TeachingTime:Fourperiods.TheFirstPeriodTeachingaims:1.Learnandmasterthefollowing:solve,creative,agreeandworth2.Trainandimprovethestudents’speakingability.TeachingImportantPoints:1.Trainthestudents’listeningandspeakingabilities.2.Masterthenewwords,andmakethestudentslearntogiveandexpresstheiradvice.TeachingDifficultPoints:Howtoencouragethestudentstofinishthetaskoflisteningandspeaking.TeachingMethods:1.atape-recorder2.theblackboardTeachingPresentation:StepI.Greetings.StepII.Presentation.T:Boysandgirls,pleaseansweronequestion:Doyouheardabout“286”“386”“486”and“586”?Ss:Yes.Theyarecomputers.T:Whichisthemostadvancedcomputerintechnology?Ss:“586”.T:Yes,youareright.FromthesenumberswecanseetheadvanceofTechnology.Ifyouwanttomaketechnologyadvance,youmusthaveCreativeabilityandtheabilitytosolvetheproblems.NowIwanttoseehowcreativeyouareandwhetheryoucansolvethefollowingproblems.PleaseturntoPage57,Unit9TechnologyandlookatthefirstpartWarmingup.StepIII.WarmingupNowIgiveyou2minutestoconsiderhowmanyusesforthefollowingItems.(Group1:atoothpickGroup2:asockGroup3:aplasticbag.Twominuteslater,collecttheAnswers)Suggestedanswers:1.Atoothpickcanbeusedtogetbitsoffoodoutofthespacebetweenteeth;Canbeusedtoeatsmallthings;canbeusedtoopenabottle…2.Asockcanbeusedtokeepyourfeetwarmandclean;canbeusedtomakeGlovesforlittlebaby;canbeusedtofillsomepresentsinon,Christmas…3.Aplasticbagcanbeusedtocarrythings;canbeusedtocovertheseatofaBikewhenitisraining;canbeusedasaglovewhenwepickUpsthoilyordirty;canbeusedtocoverourhairwhenweAredyeingit;canbeusedasatoy…T:Welldone.NowIgiveyou3minutestosolvenextproblem:makeasmanyWordsasyoucanbymovinganysideasmanystepsasyouwish.(After3minutes,youcancollecttheanswer).Suggestedanswers:stop,side,soot,stem;star;coat,code,cram;door;poem;rate;aide,atometc.T:Nowlet’scometo“Trueorfalse”.(T,F,T)StepIV.Listening.Nowpleaselistentothetapeandguesswhatisbeingdescribed.WhilelisteningtrytofinishtheformonPage57.Listenforthefirsttimeandwritedowntheobjectdescribed.Listenagainandwritedownitspossibleuses.Listenforthethirdtimetochecktheanswer.Listeningtext:1.Theseareverysimple.Twosticks,about20centimeterslong.Theyareusuallymadeofwood.Youholdtwosticksinonehand.Youputonestickbetweentwoofyourfingers,andyouholdtheotheronewithyourthumb.Thesethingscanbedifficulttouseatfirst,butyouwillsoonlearnhowtopickupevensmallpiecesoffood.2.Thisthingisverypopularanduseful.Almosteveryonehasonethesedays.Youcanseepeopleusingthisthingonthebus,whentheyarewalking,oratHome.Itisusuallysmall,aboutthesamesizeasyourhand,anditcomesinmanycolours.Thereareseveralbuttonsonit,somefornumbers,othersforotherthings.Itcanbeputinyourpocketorinasmallbag.Withit,youcantalktopeoplefaraway.3.Thisisalargeboxwithabigdoor.Ifyouopenthedoor,alightcomesonandyoucanseewhat’sinside.You’dbetternotleavethedooropenfortoolong,becauseitisnotgoodforthethingsinside.Youmightcatchacold,ifyoustandinfrontoftheopendoor.Thereareseveralshelvesinside,someintheboxitself,someinthedoor.Youusuallyfindthislargeboxinthekitchen.Answerstolisteningtext.ObjectdescribedPossibleused1.ChopsticksEating,openingabottle,2.CellphoneMakingphonecalls,sendingpictures,sendinge-mail…3.RefrigeratorKeepingfoodfresh,keepingdrinkscool…StepV.Speaking.Let’slookatthethirdpart“Speaking”.Janewantstobuyacellphone.,Beforeshebuysone,sheasksherparentsandherbestfriendwhattheythink.Group1:youareJane.Youwanttobuyacellphone.Youthinkthatacellphoneisveryuseful.Giveyourreasons;Group2:youareJane’sbestfriend.YoudonotthinkJaneshouldbuyaCellphone.Giveyourreasons;Group3:YouareJane’smother.YoudonotthinkJaneshouldbuyacellphoneGiveyourreasons;Group4:YouareJane’sfather.YouthinkthatJaneshouldbuyacellphoneGiveyourreasons;(2minuteslater,youcancollecttheiranswers)Possibleanswers:Jane1.IcanuseacellphonetocallmyParentsifImissthemorifIamLate.2.Icanuseittocallforhelp.3.IcanuseittostayintouchwithMyfriends.Jane’sbestfriend1.Wedon’treallyneedcellphones.2.Wearenotallowedtousecellphoneinschool.3.ItisbettertousethemoneyforSomethingmoreimportant.Jane’smother1.cellphonesaretooexpensive2.JaneshouldnotspendtoomuchTimeonthephone.3.JaneistooyoungtohaveaCellphone.Jane’sfather1.IfJanehasacellphone,Icanalwaysfindoutwheresheis.2.AcellphonewillhelpJanefeelsafe3.Janecanuseacellphonesendmessagestoherfriendslanguagepoints.1.solvevt.findananswertoaproblemwhichisusuallydifficulttodealwitha.Hedidn’tknowhowtosolvetheproblem.b.Atlasttheysolvedtheproblemwiththeteacher’shelp.2.absolutelyadv(1)completely,perfectly,wholly(2)Sure,certainlya.Itisabsolutelynecessary.b.Youagree?-----Oh,absolutely.3.agree+prepphrvi+todosth/thatclausevta.Doyouagreewithme?----Yes,Iagree.b.Weallagreewithwhatyousaid.c.Doyouagreetohisplan?d.Iagreetohisproposal/arrangements.e.Theboyandthegirlagreedonthedateofthenextmeeting.f.Theyagreedonmakingaearlystart.g.HeagreedtohelpmewithmyChemistry.h.Theyagreedthatweshouldbuildanewlibrary.4.worthu.n.priceorvalueadj(1)deserving(2)equalinvaluetoa.ajewelofgreatworthb.apersonofgreatworthc.twentydollars’worthofsugard.Howmuchisthebookworth?It’sworth80yuan.e.Thisproblemisworthnotice.f.Itisworthourwork.g.Weworkhardbutitisworthit.,h.Knowledgeisworthworkingfor.i.Thisproblemisworthdiscussingcarefully.j.Whateverisworthdoingatall,isworthdoingwell.k.Thisproblemisworthconsidering.Homework:1.Previewthetext.2.Recitethenewwords.BlackboardDesign:Unit9TheFirstPeriod1.solvevt2.absolutelyadv3.agreetodo/thatwith/on/to4.worthadjP.S._______________________________________________________________________________________________________________________________________________________________________The2-3PeriodReadingTeachingAims:1.Trainthestudents’readingability.2.Learnandmasterthefollowingwords,phrasesandsentencestructure:Throughouttheworld;morethan;add…to…;remindsbabout;nomatterwh-;dare;Incaseof;breakdown;room;comeupwith;TeachingImportantPoints:1.Learnandmasterthewords,phraseandsentencepatternsabove2.Howtomakethestudentsunderstandthetextbetter.TeachingDifficultPoints:1.Masterthedifferencebetweenthefollowingphrases:Nomatterwh-/wh-everincase/incaseof2.HowtoUnderstandthetextscompletely.TeachingMethods:1.Fastreadingtoletthestudentsgetthegeneralideaofthetext.2.Question-and-answeractivitytoletthestudentsgetthedetailedinformationinthetext.3.Makingsentencestohavethestudentsmastersomelanguagepoints.TeachingAids:1.ataperecorder2.ablackboardTeachingProcedures:StepI.Greetings.StepII.PresentationT:Asweknowthatlifetodayisquitedifferentfromlifeinthepast.Hereisaexample.(usingacellphone)Look,what’sthis?Ss:Acellphone.T:Haveyoueverusedone?Ss:Yes/No.T:Whyarenotthestudentsallowedtousecellphones?Let’sreadthetext“LifeOnthego”,StepIII.ReadingReadthetextquicklytogetitsgeneralidea.ThenanswerthequestionsontheBb.1.Doschoolsagreetousephonesinschools?Howabouttheirparents?(Someschoolsdon’tagreephonesareusedinschool.Nordotheirparents.Theyworrythattheirchildrenwillspendtoomuchtimeandmoneyonphonecalls)2.WhatdoesWangMeithindisthemostusefulinvention?(Shethinksthecellphoneisthemostusefulinvention.)Readthepassageagaintofindoutthemainideaoftheparagraphs.Suggestedanswers:Par.1:WangMeiisanexampleofChineseteenagerswhohavecellphones.Par.2.:Cellphonescanbeusedformanythings.Par.3:Cellphonesalsocauseproblems.Par.4:Thereareseveralreasonswhyteenagerslikecellphones.Par.5:WangMeiexplainwhyshelikeshercellphoneandwhatsheuseditFor.T:Nowyouhaveknownthegeneralideaofpassageandthemainideaofeachparagraph.NowreadParagraphs2,3and4tounderstandthedetailsandfillintheblanksonPage60.(Aftersomeminutes,teacherasksthreestudentstoreadtheanswer.Suggestedanswers:Forexample:Cellphonesareusedascameras,radiosandelectroniccalendars,Andtosende-mail,surftheInternet,playgamesandenjoymusic.Inschool:disturbstudentsandteachers.Athome:spendtoomuchmoneyonphonecalls.Reasons:1.Theyneedtostayintouchwithfriendsandfamily.2.Theycancallforhelpincaseofanemergency.3.Theythinkthecellphoneisawaytohavefunandbecool.StepIV.Languagepoints1.“lifeonthego”移动人生liveahappy/hard/busy…lifeonthego是介词短语作定语后置，意思是“忙个不停”；“四处奔走”；“跑来跑去”的意思。Herchildrenkeepheronthegoallday.Wecan’tkeepsmallchildrenstill,theyarealwaysonthego.介词on在这里表示“处于。。。。。。情况之中”TheyareonavisittoChina.He’sgonetoHKonbusiness.Thego可以表示“流行，时髦”常用于口语中。Hiphophasbecomequitethegoamongyoungsters.Hulahoopseemstobecomingbacktothegoatpresent.2.throughouttheworld=allovertheworld,allthroughtheday=duringtheday/thewholeday/alldaylong3.morethan（1）超过，多于（2）不只是，非常a.Hehasmorethantwentyyuanwithhim.b.By1993,thenumberofthedeeratthecenterhadincreasedfrom20tomorethan200.c.ThetraveltoBeijingismorethansightseeing.d.Heismorethanourteacherandheisourfriend.e.Bambooisusedformorethanbuilding.f.Moderncellphonesaremorethanjustphones----theyarebeingusedasCamerasandradios,andtosende-mailorsurftheInternet.g.Heismorethanhappy.More….than与其说。。。不如说。。。h.Heismorelikeaspearthananythingelse.i.Heismorediligentthanclever.j.Tomismorefrightenedthanhurt.Nomore…than…并不比。。。更。。。，都一样不k.YouarenomorebeautifulthanI.l.Thetrainticketisnomorecheaperthantheplaneticket.m.KaterunsnofasterthanJane.n.Thebookontravelisnomoreinterestingthanthebookonfood.Nomorethan仅仅，只不过a.Heisnomorethanalittleboy,anddon’tbeangrywithhim.b.Therearenomorethan5studentsleftintheclassroom.c.Heknowsnomorethanfoodinhisworld.Notmore…than…不如。。。notmorethan至多，不超过o.Thisdictionaryisnotmoreusefulthanthatone.p.Inmypocketthereisnotmorethan5dollars.4.beusedas/beusedtodo/beusedfor/beusedbya.Computersshouldn’tbeusedasatoolforplayinggames.b.Computerscanbeusedtoworkoutcomplicatedmathematicalproblems.c.Pensareusedforwriting./Woodcanbeusedformakingdesksandchairs.d.Thisbedisusedbymypetdog.5.addvt.（1）加；增加；添加add…to…（2）补充说道addtovi.增添；增加addupto总计达a.Headdedsomesalttothesoup.b.Add5to3andyouhave8.c.Thefireisgoingout;willyouaddsomewoodtoit?d.“Yougofirst.”“I’llcomelater,”headded.e.Themusicaddedtoourenjoyment.f.Thelightsaddtothebeautyofourcity.g.Theexpencesaddupto95yuan.5.latest/lately/lated.Everyonelikestoreadthelatestnews.e.Mr.Smith’slatestnovelhasbeenpublished.,f.Whathaveyoubeenbusywithlately?g.Youarelateagain.Don’tcomelatenexttime.6.remindvt+sbof/aboutsth+sbtodosth+that表提醒+sbofsth+sbofdoingsth表使。。。想起a.ThePicturesremindedthemofthedayswhentheylivedinthesameRoom.b.Thestoryremindsmeofmyschooldays./ofhavingdonewrongwhenIwasYoung.c.Pleaseremindmetotakemedicinetomorrowmorning.d.Sheremindedhimthathehaditbefore./thattheyhadmeteachotherBefore.7．daremod.v/vta)Hedoesnotdaretotakeithome.=Hedaren’ttakeithome.b)Doyoudaretoaskhim?=Dareyouaskhim?8.nomatterwhat与whatevera.Nomatterwhereyougo,you’llfindnewfriends.=Whereveryougo,you’llfindnewfriends.b.Whateverhesays,wecan’tbelievehim=Nomatterwhathesays,wecan’tbelievehim.c.Whateverhesaysisn’ttrue.d.IwilldowhateverIcantohelpyou.e.Givethebooktowhoeverwantsit.8.incaseof+名词/短语（介）；假使，要是。。。的话；incase+从句也可单独使用，置于句尾，意思是（1）要是。。。的话；万一。。。的话(2)以防，免得a.Incaseoffire,ringthealarmbell.b.Havingacellphonealsomakesusfeelsafer,sincewecancallforhelpincaseofanemergency.c.Incasehecomeshere,tellhimthatIwillgotomeethim.d.Putonthecoat,incaseitsnows.e.Pleasetakeanumbrellaincaseitrains.f.Itmayrain;you’dbettertakeanumbrellaincase.（以防万一）Inanycase不管怎样；Inanycase,parentsshouldn’tbeattheirchildren.Inthatcase既然这样/那样，用作状语Inthatcase,youhavetowait.inthecaseof就。。。来说；至于。。。Inthecaseofcomputer,itisjustsoexpensive.10.Ishouldbehomeinabouttenminutes.（表示可能性或推测）Heshouldhavearrivedtherebynow.他现在应该到那了。11.Ithinkit’sthemostusefulinventionever.（见第四点）(1)用于肯定句中，比always意味稍强。永远；总是；一向Heworkedashardaseverwhenhegotaheadache.Theoldwomanrepeatedeverthesamewords.(2)用于条件句/一般疑问句/否定句中，译成：曾经；在任何时候Didyouevermeethim,whileyouwereinLondon?Haveyoueverheardofhim?Ifyoueverseehim,pleasegivethepentohim.Nothingeverhappenedhere.(3)强调特殊疑问句中的疑问词，相当于onearth究竟，到底WhereeverdidyouseeMr.Read?HoweverdidIforgetit?Whoevercanitbe?(4)与比较级、最高级连用译成：比以往任何时候It’sthenicestthingever.这是空前的最好的东西。Heisangrierthanhehaseverbeen.11.collectmoneyfor../raisemoneyfor12.effect(c.u)效果；作用；影响a.Ithadsuchabadeffectuponhim.b.Theeffectsofthemedicineweregoodtothepatient.c.Itmaybetheeffectoftheillness.Haveaneffecton对。。。产生影响Ithadanimmediateeffectonhisthinking.Takeeffect生效；开始发生作用ThenewlawwillnottakeeffectuntilJuly.Themedicineisgoingtakingeffect.Homework:1.RecitethewordsinUnit9.2.FinishtheexercisesonPage135.BlackboardDesign:LifeonthegoLanguagepoints:1.morethan2.remind3.allow4.nomatterwhat5.incaseof/incase….P.S.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________TheFourthPeriodTeachingAims:1.Dosomereadingandgetthegeneralideaofanewparagraph.2.Dosomewriting.MainPoints:1.Howtoguessthemeaningsofthenewwords.2.Howtotrainthestudents’writhingability.Difficultpoints:Improvethestudents’integratingskills---readingskillTeachingMethods:,Askandanswerquestions.Teachingaids:1.ablackboardTeachingprocedures:StepI.Greetings.StepII.RevisethelanguagepointsinthetextOnthego;add..to…remindsbof/aboutsthStayintouchwith;incaseofanemergency…StepIII.Readingtext.T:Nowadayscomputersarewidelyusedinallkindsoffields.Withthem,Manythingsbecomeeasierandfaster.Canyouimaginewhatwillhappentoourworldinthefuture?(Teachercollectsthedifferentanswersfromthestudentsandsaysthefollowing.)Todaywe’llreadapassageaboutarobotnamedQ12.Ithinkyouareinterestedinit.PleaseturntoPage62.Whileyouarereading,youmayfindsomewordsandphrasesdifficulttounderstand.Readthepassageandfindthemout.(Afterawhile,teacheraskstosaythedifficultwordsandphrasesandhelpthemguessthemeanings.)T:Nowreadthepassageagainandanswersomequestions.1.Whatistheearthruledbyintheyear2374?2.Whathappenstohumanbeingsbythen?Whatabouttheworld?3.WhatdoestheleaderofthehumanbeingsdecidetodowithQ12?4.CanQ12bedefeatedbyforce?5.Whatsolutiondothestudentscomeupwith?Suggestedanswers:1.TheearthisruledbyagreatcomputernamedQ12thatusedrobotstomakepeopleworkforit.2.HumanbeingshavetodoeverythingQ12tellsthemto.Theworldisdarkanddirty,andhumanbeingshavenoroomforhappinessandfun.3.TheleaderofthehumanbeingshasdecidedtosomethingtostopQ12andBringthemachinesandpeoplebacktogether.4.Itcan’tbedefeatedbyforce.5.Thestudentscomeupwithapeacefulsolution.TheywilltrytoteachQ12aboutloveandfriendshipinorderthattheyLanguagepoints1.takeovera.Hetookoverthephoneandsaidtohiswifeattheotherend“Iloveyou.”把。。。接过来b.Thearmytookovertheadministrationafterthewar.接管c.ThemenfromRedcrossarecomingtotakeovertherefugeecamps。接收d.OneoftheboardofdirectorshasresignedandMr.Brownwillpossiblytakeover.接任e.Nowadaysvarioustypesofmouthcoverstakeover.盛行起来2.breakdown失败；损坏；出毛病,a.Theplanbrokedown.b.Theliftbrokedownyesterday.3.wonderc.n奇迹；奇观；奇才u.n惊奇；惊叹vt.想知道，极欲知道vi对。。。感到奇怪、惊异a.TheGreatWallisoneofthewondersoftheworld.b.Heisawonder.Hecouldwritewhenhewasonlyoneyearold.c.Iwonderwhatreallyhappened.d.Iwonderifshecancomeherethisafternoon.e.Iwaswonderingaboutthat.f.Theylookedatmeinwonder.g.Theywerefilledwithwonder.h.Therewasalookofwonderinherface.Nowonder难怪；不足为奇i.Nowonderyouareoftenlate.j.Nowonderhelovesyouso.k.ItisnowonderthatsomanypeoplehavebeenstrickenbytheWestLake.Itissobeautiful.4.defeatvt战胜，击败vi使失败，使落空n.战败，失败，挫败a.Ourarmydefeatedtheenemy.b.OurclassdefeatsClassTwoatbasketball.c.Theirhopesweredefeated.d.Thefirstrevolutionendedindefeat.e.Theywouldnotadmitthisdefeat.5.forceu.nvt强迫，迫使a.Shedidn’tusemuchforce.力量b.Thethieftookthemoneyfromtheyoungmanbyforce.暴力c.Thenavyisoneofthearmedforces.兵力d.Iforcedhertodoit.e.Weforcedtheenemyintosurrendering.f.Hewasforcedintothehouse.6.comeupwith无被动语态（1）赶上（2）提出；提供a.Weshallhavetoworkhardtocomeupwiththem.b.Ihopeoucancomeupwithabetterplanthanthisc.Youshouldcomeupwitharesponse.Comeupto达到，符合d.comeuptostandarde.Thewatercomeuptohiswaist.f.Theconcertdidnotcomeuptoexpectations.Comeup（1）走近（2）上来，上楼（3）长出，发芽（4）发生（5）提出、提及g.Theseedshaven’tcomeupyet.h.I’llletyouknowifanythingcomesup.i.Yourquestioncameupatthemeeting.,7.takestepstodo…采取措施做某事（在63页）TheChinesegovernmenthastakenstepstoprotecttheenvironment.8.dreamof/aboutdoing（在课文中）I’veneverdreamedof/aboutbecomingarichwoman.StepIV.Homework(writingalettertoQ12)T:NowyouhaveknownonlywhenQ12istaughtaboutloveandfriendship,WillQ12andhumanbeingslivetogetherandwilltheworldbebeautifulagain.NowyoumustwritealettertoQ12totellitaboutloveandfriendship.Threetipshavebeengiven.Pleasediscussthemingroupsandfinishthis.Compositioninyourhomework.BlackboardDesignReadingtext(2)Languagepoints:1.takeover2.breakdown3.dreamof4.force5.comeupwith…..P.S._____________________________________________________________________________________________________________________________________________________________________________________________________TheFifthPeriodTeachingAims:ReviewthePresentContinuousPassiveVoice.MainandDifficultPoints:1.MastertheformandusageofthePresentContinuousPassiveVoice.2.MasterthequestionformofthePresentContinuousPassiveVoiceandThenegativeformofthePresentContinuousPassiveVoice.3.HowtousePresentContinuousPassiveVoicefreely.TeachingMethods:1.Askingandanswering2.PractisingTeachingProcedures:StepI.Greetings.StepII.PresentationforGrammarStudyT:Todaywe’lllearnGrammar---thePresentContinuousPassiveVoice.PleaseturntoPage59.Inthetext“Lifeonthego”,thereareafewsentencesinwhichthepresentcontinuouspassivevoiceisused.NowreadPar.2andfindthemout.(teachergivestudentsoneminutetoprepareitandasksthemtoreadthesentences.Meanwhile,teacherwritesthemontheBb.Andunderlinestheverbswithcolouredchalk.)T:Thepresentcontinuouspassivevoiceis“bebeing+p.p”(writethemontheblackboard.)“be”shouldagreewithitssubjectinpersonandnumberStepIII.PracticeA.ExercisesonPage61.B.Checkpoint9onPage63.C.Exercises1onPage136,D.Ifyouhavetime,youcanleadthestudentstoreadtipsonPage63.Homework.Finishalltheexerciseswhichareundoneonthebook.BlackboardDesign.Grammar1.wordsandimagesarebeingsentthroughouttheworld.2.…theyarebeingusedascamerasandradios.3.…Newfunctionsarebeingaddedtothephones.Form:bebeingdoneP.S.________________________________________________________________________________________________________________________________________________________________________________________________________________________________