Unit3Grammar课件沪教版英语七年级下册

Unit3TreesandusGrammarLeadinWhatdotreesdoforus?LeadinWhatarepeopledoingtotrees?Theyarecuttingdowntreesandpollutingthewaterandtheairthesedays.TreePlantingDayiscoming.

Look!Whatarethestudentsdoingnow?LeadinLiNaistalkingtoWangJieonthephone.Theywanttocallonmorestudentstoprotecttrees.FocusonformHeiswatchingaTVprogrammeabouttreesnow.LiNaandSuSuareworkingonagroupprojectthesedays.Heisstayingwithhisgrandmotherthisweek.Thepresentcontinuous②totalkabouttemporarythings(nothappeningnow)Page41Focusonform1.Bequiet!Thestudentsarehavingaclassabouttreeprotectionrightnow.2.Whatareyoudoingtosavetreesatthemoment?3.Wearelearningabouttheimportanceoftreesinscienceclassthisterm.Bequiet!

rightnowatthemomentthisterm.FocusonformHumansarenottreatingtreesinakindway.Peoplearecuttingdowntreesallovertheworld.Wearepollutingwaterandair,whichharmstreesgreatly.Nowmanytreesaredying.Arewedoingenoughtosavethem?It’stimeforustoprotecttrees.TreePlantingDayiscoming,sostudentsarehavingsomeactivitiestoprotecttrees.FindV-ingusedinthethepresentcontinuoustenseandtrytoconcludetherules.Mainverb-ingfromwordsintext+ingremove

e+ing+ingremoveie+yingdoublethelastletterandadd-ingLet'sfindouttherulesandgivemoreexamples.see→pollute→pollutingdie→dyingcut→cuttingtreat→treatingFocusonformMostverbWordsendwithasilenteWordsendwithapronouncedeWordsendwithiestressedclosedsyllable"cvc"seeingFocusonformClassificationGameFocusonformHumansarenottreatingtreesinakindway.Peoplearecuttingdowntreesallovertheworld.Wearepollutingwaterandair,whichharmstreesgreatly.Nowmanytreesaredying.Arewedoingenoughtosavethem?It’stimeforustoprotecttrees.TreePlantingDayiscoming.Sowhatarestudentshavingsomeactivitiestoprotecttrees?Findthechangesofsentencepatternsinthetext.Negativesentence主语+be(is/am/are)+not

V-ingYes-noquestionBe(is/am/are)+主语+V-ing?Wh-question特殊疑问词+be(is/am/are)+主语+V-ing？FocusonmeaningHumansarenottreatingtreesinakindway.Peoplearealwayscuttingdowntreesallovertheworld.Wearepollutingwaterandair,whichharmstreesgreatly.Nowmanytreesaredying.Arewedoingenoughtosavethem?It’stimeforustoprotecttrees.TreePlantingDayiscoming.Sowhatarestudentshavingsomeactivitiestoprotecttrees?Findmoreusagesofthepresentcontinuoustense.arenottreatingtoshowtemporarysituation(notrightnow)arealwayscuttingtoshowstrongfeelingtoshowfutureplans/comingeventsiscoming

arehavingWedonotusuallyusetheverbsintheboxbelowinthepresentcontinuoustense.Instead,weusetheminthesimplepresenttense.believehearlikepreferlovehatesmelllooktasteunderstandknowseerealizewant✔Iknowmydeskmatewell.✘Iamknowingmydeskmatewell.Specialrules有些动词通常不可用于现在进行时,而用一般现在时A:What_____you_____(do)atthemoment?B:I______(make)aposteraboutprotectingtrees.A:What_____youusually______(do)tohelpprotecttreesinyourfreetime?B:Iusually____(plant)treeswithmysisterinthepark.A:Great!____you___(do)somethingbadtotreesthesedays?B:No,I_____.I________(nothurt)trees.Ithinktreesareimportant.Butsomepeople______always______(pollute)thewaterandairandit_____(be)badfortrees.A:Okey,thankyouforyourinterview.ProductionaredoingammakingdodoplantAredoingamnotarepollutingisFillintheblankswithcorrectformsofthegivenverbs.Herearetwopicturesandchooseonepictureandhaveaninterviewaboutit.(pairwork:oneisareporter,theotherisastudent)Content:What/Who/Why...?Howdoyoufeel?ProductionA(reporter):Hello,Iamtheschoolreporter.WhatareyoudoingforTreePlantingDay?B(students):A:Areyou?B:A:B:A:Great!Tha