Unit1Makingadifference-TheFourthPeriodTeachingAims:1.Revisethelanguagepointsandgrammar－theInfinitiveinthisunit.2.Learnandmasterthefollowingphrases:takealookat,whatif,theotherwayaround3.Dosomereadingandwritingpracticetoimprovethestudents'integratingskills.4.Learnhowtowriteadescriptiveparagraph.TeachingImportantPoints:1.Improvethestudents'integratingskills.2.Helpthestudentswriteadescriptiveparagraph.TeachingDifficultPoints:1.Howtoheldthestudentsunderstandthepassagebetter.2.HowtohelpthestudentslearntowriteadescriptiveparagraphTeachingMethods:1.Doingexercisestorevisewhatwe'velearntbefore.2.Asking-and-answeringactivitytogothroughthereadingmaterial.3.Discussiontohelpthestudentsunderstandthepassagebetter.4.Individual,pairorgroupworktomakeeverystudentworkinclass.TeachingAids:1.aprojector2.ataperecorder3.theblackboardTeachingProcedures:StepIGreetingsGreetthewholeclassasusualStepⅡRevisionT:YesterdaywelearnedthegrammartheInfinitive.Weknowthattheinfinitivecanbeusedasthesubject,object,adverbialandsoon.Nowlet'sdosomeexercisestoseeifyouhavemasteredthemwellenough.Lookatthescreen.(Showthefollowingonthescreen.)Tellthefunctionoftheunderlinedpartineachsentence.l.(1)Tolearnabouttheuniverse,youneed(2)tohaveatelescope(3)toobservethestarswith.2.Ittakestime(4)toknowaman.3Pleaseremember(5)tobringmeabook.4.I'vegotalotofwork(6)todo.5.(7)Inordertocatchthefirstbus,shegotupearly6.Itisimportantforus(8)tolearnEnglish(Teacherasksthestudentstodothemonebyone.Ifthereisanyquestion,teachercanexplainittothem.)Suggestedanswers:Subject:(4)(8)Object:(2)(5)Attribute:(3)(6)用心爱心专心115号编辑Adverbial:(1)(7)T:Let'sdoanotherexercise.Fillintheblanks,usingtheInfinitive.(Showthefollowingonthescreen.)l.ThegoalofStephenHawking'sresearchistoandtoishisbiggestdream.2.Thedoctorthoughtheonlyhadthreemoreyearsto,whichturnedout3.WetookataxitoWehurriedthere,onlytoWewereunhappyto4.Hestudiedhardto.5.Lunchisreading.Let’sstopto.(Teacherasksthestudentstofinishtheexercisewithinthreeminutes.Thenteachercollectstheanswers.)Suggestedanswers:1.discovernatureoftheuniverse;getmarried2.live;bewrong3.catchthetrain;findthetrainhadgone;missthetrain4.passtheexamination5.havelunchT:Welldone.Somuchforgrammarrevision.Nowlet'srevisetheusefulexpressionsinthisunittogether.(Showtheexpressionsonthescreen.)TellmetheirChinesemeaningsonebyone.workon,beengagedto,goby,turnout,dreamof,goonwith,useupT:Nowlet'sdoanexercisetoseewhetheryouhavemasteredthemwell.Completethesentencesbyfillingintheblankswiththerightphraseswe'verevisedjustnow.(Showthesentencesonthescreen.)1.Heonedaybecomingafamousviolinist.2.TomAnn.3.Twoweeksslowly.4.Hissuggestiontobeagoodone.5.Hehisink.6.Ifwedon'tfinishpaintingtheroomtoday,wecanittomorrow.7.Heanovel.(Amomentlater,checktheanswerswiththewholeclass.)Suggestedanswers:1.dreamsof2.isengagedto2.wentby4.turnedout5.hasusedup6.goonwith7.isworkingonStepⅢReadingT:Thereweremanyscientistsintheworldinthepast,whosediscoveriesandinventionscanhelpusunderstandtheworldbetter.Canyousayoutthenamesofsomescientistsandtheirdiscoveries?用心爱心专心115号编辑Ss:Yes.ElbertEinstein(theTheoryofRelativity);MariaCurie(Radium,Polonium)…(Teachercollectsthenamesanddiscoveriesorinventionsofthescientistsandsaysthefollowing.)T:Doyouknowwhyandhowtheymadetheseimportantdiscoveriesorinventions?(Ss:No.)OK.Todaywearegoingtoreadapassage.Itwilltelluswhatmakesthescientistsmak...
