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UnitUnit44Module2Man’sbestfriendsSavethetreesSavethetreesPeriod4Period4GrammarGrammarLet’senjoyasongSailing航行SailingI_________,I_________homeagain'crossthesea.I_________stormywaters,tobenearyou,tobefree.amsailingamsailingamsailingSailingI________,I________likeabird‘crossthesky.I________passinghighclouds,tobenearyou,tobefree.amflyingamflyingamflyingSailingWe_________,We_________homeagain'crossthesea.We_________stormywaters,tobenearyou,tobefree.aresailingaresailingaresailingIamsailing,Iamsailinghomeagain'crossthesea.Iamsailingstormywaters,tobenearyou,tobefree.Iamflying,Iamflyinglikeabird'crossthesky.Iamflyingpassinghighclouds,tobenearyou,tobefree.Wearesailing,wearesailinghomeagain'crossthesea.wearesailingstormywaters,tobenearyou,tobefree.Unit4GrammarPresentContinuousTense（现在进行时）Heisplayingtheguitar.Theyarewalkingacrossthestreet.nowatthemomentHeisbrushinghisteeth.Look!Listen!Mickyislaughing.Thechildrenareplantingtrees.thesedays•Heisplayingtheguitarnow.•Theyarewalkingacrossthestreetatthemoment.•Look!Heisbrushinghisteeth.•Listen!Mickyislaughing.•Thechildrenareplantingtreesthesedays.发现语言（1）1、现在进行时的结构是_________________。2、表示：①说话时正在进行的动作，常见的关键词有______________________________等。②目前阶段正在进行的动作（但说话时不一定在进行），常见的关键词有___________等。be(am/is/are)+V-ingnow,atthemoment,look,listenthesedaysWhat/do--Whataretheydoing?--Aretheyeating?--No,theyaren’t.--Theyaren’teating.--Aretheyplayingchess?--Yes,theyare.--Theyareplayingchess.1.肯定句:主+___+_____+其他.2.否定句:主+___+___+____+其他.3.一般疑问句：___+主+_____+其他?肯定回答:Yes,主+___.否定回答:No,主+_____.4.特殊疑问句：疑问词+___+主+_____+其他?amisareV-ingamisareamisareamisareAmIsAreamnotisn’taren’tV-ingV-ingnotV-ing发现语言（2）Performersactouttheactionsinthefront，(表演者在前面做动作)theotherstudentsaskandanswerinpairs.(其他同学进行两人对话S1:Whatis/are…doing?S2:He/Sheis…或Theyare…)运用语言（1）ShowtimeHeiscry.Heisdriveacar.ingHeisswim.mingItislieying.构成规则例词一般在动词词尾+___以不发音的e结尾的动词，去掉__再加-ing.以一元一辅结尾的重读闭音节动词，先____这个辅音字母再加-ing.以ie结尾的动词，先将ie变成__，再加-ing.发现语言（3）现在分词（V-ing）的构成规则ingy双写eplay-stop-tie-dance-playingdancingtyingstoppingingChangetheverbsinto–ingform.Exercise1.think__________3.tell__________5.sit__________7.come__________9.close__________2.die__________4.sing__________6.shop__________8.change__________10.make__________thinkingtellingsittingcomingclosingdyingsingingshoppingchangingmaking运用语言（2）EnglishBookExerciseP50Aisdoingisplayingareplayingisfishingisswimmingarelyingiseatingisplayingamtalking主语句式Correctthemistakesinthesentences.1.Look!Twoboysplayingtabletennis.2.Iamstudyhardnow.3.Thechildrenisruningontheplayground.4.Iamwantingtobeateacher.wantstudyingarearerunningEnglishBookMoreexamplesP51SpecialrulesWecannotusesomeverbsinthepresentcontinuoustense.发现语言（4）某些表示感官知觉、爱好或心理活动的动词，通常情况下不用于现在进行时，而用于一般现在时。knowlikesamknowingisliking??Iknowtheanswernow.Shelikesthispoem.Iamknowingtheanswernow.Sheislikingthispoem.Why？EnglishBookExerciseP51BisringingknowamthinkingpreferGrammarexercise运用语言（3）现在进行时or一般现在时?smellsareeatingameatingDowantTopictalk运用语言（4）Savethetrees1.Somepeoplearedestroyingthetrees.Whataretheydoing?2.Otherpeoplearechangingit.Whataretheydoing?stopforexampleburn(烧毁)waste(浪费)chopsticks(筷子)Luckily(幸运地)ask…to…protect根据问题和图片的提示，口头说话。Self-assessment(自我评价)1、这节课我学了_______,表示______的动作，结构是_______.2、但有些动词通常不用于________时，而常常用于_______时，如__________.3、我能用该时态描述图片以及谈论本单元的话题。（我给自己打）HomeworkWriteashortpassageaboutthetopictalk.Treesareimportantinourdailylives.Butnow,somepeoplearedestroyingtrees.Forexample,________________________________________________________________________________________Luckily,manyotherpeoplearedoingthingstochangeit.___________________________________________________________________________________________________________________________Ihope____________________________________________________________________________Thebestgrouptodayis……