八大时态讲解完整ppt课件

.,时态,.,2,知识导航,.,3,一、一般现在时,1、构成一般现在时常用动词原形，但第三人称单数作主语时，动词的词尾要加s或es,.,4,2、用法,表示经常性、习惯性的动作Igototheparkonceaweek.Whendoyouusuallyhavebreakfast?表示客观真理Thesunrisesintheeast.,.,5,表示主语所具有的特征、性格、能力、状态等Sheisamiddleschoolstudent.Shelooksalittleworried.某些以here/there开头的句子中，用一般现在时表正发生的动作Herecomesthebus.,.,6,表示将来发生的、时刻表上不改变的事ThetrainleavesHunanatfiveoclock.特殊情况在时间状语从句和条件状语从句中，若主句用一般将来时，则从句用一般现在代替将来。（主将从现）IllseeyouwhenIgetthere.Ifitdoesntraintomorrow,wellgoshopping.,.,7,常与一般现在时连用的时间状语有：often经常usually通常never从不everyday每天sometimes有时seldom几乎不always总是onceaweek一周一次,.,8,【翻译】,我今年20岁，住在北京。Iamtwentyyearsoldthisyear,andIliveinBeijing.火车将在一个小时后（inanhour）出发（setoff）。Thetrainsetsoffinanhour.她每天都走路上学。Shewalkstoschooleveryday.或：Shegoestoschoolonfooteveryday.,.,9,二、现在进行时,1、构成现在进行时由“助动词be（am/is/are）+doing”构成。,.,10,2、用法,表此时此刻正发生的动作，常与now连用。Theyarecleaningtheroom.Listen,someoneisshouting.与副词always连用，表达一种感情色彩。Sheisalwaysthinkingofothersinsteadofherself.Whyareyoualwayscominglate?,.,11,有些动词（arrive,come,go,leave）的ing形式可表示将发生的、计划或安排好的事。Weareleavingherenextweek.Sheiscomingtoseemetomorrow.while后常用doing形式Whileyouarereadingthebook,heissleeping.,.,12,常与现在进行时连用的时间状语有：now现在rightnow现在thesedays这些天atthismoment在此刻,.,13,我认为他正在看电视。Ithink(that)heiswatchingTV.当我在睡觉的时候他正在听音乐。WhileIamsleeping,heislisteningtomusic.,【翻译】,.,14,【中考链接】,Look!there_ourdog.(2013)comeB.comesC.tocomeD.coming,Look!Thesun_,andit_fromthewest.(2013)fallsdown,fallsdownfallsdown,fallingdownC.isfallingdown,fallsdownD.isfallingdown,fallingdown,.,15,Theman_withhisparentsonceayear.(2014)goestravelB.goestravelingC.isgoingtravelD.isgoingtraveling,Sheisdoingherhomeworkwhilehermother_toher.(2014)A.speaksB.spokeC.tospeakD.speaking,.,16,Heisalazyman.He_thedirtyjeanseveryday.(2014)alwayswearsB.alwayswearingC.alwaystowearD.isalwayswearing,Youwillknowthetruthafteryou_him.(2013)A.seeB.willseeC.areseeingD.tosee,.,17,三、一般过去时,1、构成一般过去时用动词的过去式表示。除系动词be的过去式有人称和数的变化外，其他动词的过去式无人称和数的变化。,.,18,2、用法,表示过去已经发生的动作，现在已经结束，常与相应的过去时间状语连用。Tomfellilllastnight,andhehadtostayathome.追述逝去的人或事。Edisonwasagreatinventor.,.,19,表示过去经常或反复发生的动作，可与always,usually,often,sometimes,never连用。Heusuallywalkedtoschoollastyear.Ioftenatenoodleslastweek,butnowIseldomlikeit.,.,20,常见的过去时间状语有：justnow刚才yesterday昨天intheolddays在那段旧时光里atthattime=atthatmoment在那时afewdaysago=theotherday几天前,.,21,去年他通常坐公交车去上学，但现在经常骑自行车上学。Heusuallywenttoschoolbybuslastyear,butnowheoftengoestoschoolbybike.,【翻译】,.,22,四、一般将来时,1、构成一般将来时态由“will/shall+动词原形”构成，表示将来发生的动作或状态。Wewill/shallcometoaskMaryforhelp.,.,23,2、其他表示,begoingto+动词原形：表示说话人主观的打算或预测。Iamgoingtolookforajobhere.Itisgoingtobeafinedayforcampingtomorrow.,.,24,betodo:表示已经计划或安排好的动作。ThepresidentistovisitChinanextweek.Themeetingistostartearlytomorrow.,.,25,beabouttodo:表示马上要发生的事，不强调主观。Thetrainisabouttoleave.beabouttodowhen正当时Iamabouttoleavewhenthephonerings.,.,26,注意：在从句中的将来时态，will要变成相应的时态。Shesaidshewouldhelpmeifshefinishedherwork.,.,27,他昨天说他很快将要离开。Yesterday,hesaidhewouldleavesoon.正当他要说话时，老师来了。Heisabouttospeakwhentheteachercomes.,【翻译】,.,28,五、现在完成时,1、构成现在完成时由“助动词have/has+过去分词”构成，表示一件已发生的事与现在情况有联系，往往对现在造成一定影响。Ihavelostmykey.Thelifthasbrokendown.,.,29,2、用法,常可以和just,ever,already,recently,yet等词连用。Hehasjustleft.Haveyouphonedhimyet?(否定回答)：No,Ihavent.,.,30,常和for+时间段、since引导的时间状语、howlong连用。Howlonghaveyouknownher?Ihaveknownherforthreeyears.强调直到现在为止的经历。HehasonlybeentoChinaonce.,.,31,在时间和条件状语从句中，用现在完成时代替将来完成时。IwillgohomeassoonasIhavefinishedallmywork.Iwillnotletyougountilyouhavefinishedyourwork.,.,32,和time连用的情况This/ItisthefirsttimethatIhaveseenapanda.由since引导的从句中，主句用现在完成时，从句用一般过去时。Wehavebeenfriendssincewemetatschool.,.,33,注意区别：havegoneto:到某地去了，还未回来havebeento：到过某地,IhaventseenJohnfordays,wherehashegone?HehasgonetoAmericaforbusiness.IhavebeentoAmerica.,.,34,他去上海待了一周。HehasbeentoShanghaiforaweek.我将在你离开之后告诉他们（after）。Iwilltellthemafteryouhaveleft.你找到你的钥匙了吗？Haveyoufoundyourkey?,【翻译】,.,35,六、过去进行时,1、构成过去进行时由“助动词be(was/were)+doing”构成，表示在过去某一时间点正在进行的动作。atthattime当时thistimeyesterday昨天这个时候,.,36,Whatwereyoudoingat8:30yesterdayevening?IwaswatchingTV.【小试牛刀】他们昨天这个时候正在吃晚餐。Theywerehavingdinnerthistimeyesterday.,.,37,七、过去完成时,1、构成过去完成时由“助动词had+过去分词”构成，表示在过去某一时刻或动作之前已经完成的动作，即“过去的过去”。这个过去的时刻常用by,before等介词短语来表示。,.,38,常与过去完成时连用的时间状语有：beforethatyear那年之前bythe/thattime到的时候bytheendof到为止,.,39,Bythetimehegotthere,thebushadleft.Hehadworkedfor10hoursbeforeheslept.【小试牛刀】到去年为止我都没有见到他。Ihadnotseenhimbytheendoflastyear.,.,40,八、过去将来时,1、构成过去完成时由“助动词would/should+动词原形或was/weregoingto+动词原形”构成，表示从过去某一时间看将要发生的动作。,.,41,Lastweekhesaidhewouldcometoseeme.Iwasabouttoleavewhenthephonerang.【小试牛刀】她告诉我她打算去香港。ShetoldmeshewasgoingtoHongKong.,.,42,【高考链接】,WhenAlicecameto,shedidnotknowhowlongshe_there.(12全国)hadbeenlyingB.hasbeenlyingC.waslyingD.haslain,Itwasonlyaftersomeprocess_inpreventingthewaterpollutionthatwebegantorealizethesignificanceofit.(13重庆)wasmadewouldhavebeenmadeC.hasbeenmadeD.hadbeenmade,.,43,-ImetTomlastmonth.-Really?-Yes.We_eachothersincewegraduatedfromcollege.(14山东)haventmetB.hadntmetC.wouldntmeetD.didntmeet,Myoil_.Imustgotothegasstationbeforethereisnoneleft.(10山东模考)hasrunoutB.isrunningoutC.hasbeenrunoutD.isbeingrunout,.,4