初中英语时态超好讲解任.ppt
初中英语时态超好讲解任二、时态的种类：初中常见的时态的种类：初中常见的8种时态种时态一般现在时一般现在时一般过去时一般过去时现在进行时现在进行时过去进行时过去进行时现在完成时现在完成时一般将来时一般将来时过去将来时过去将来时过去完成时过去完成时各种时态的用法各种时态的用法一、一般现在时一、一般现在时1 1.用法：用法：2.2.结构：结构：3 3.标志词标志词:1.The boy usually_(get)to school early.gets2.Light _(travel)faster than sound.travels A.现在现在经常性经常性的的动作动作或或状态状态always,usually,often,sometimes,never,every day/week/month/year/B.客观事实客观事实和和真理真理。她一到达那儿，就会给你写信。她一到达那儿，就会给你写信。一般现在时的注意点一般现在时的注意点:、在在when,as soon as,until,after,before等到引导的时间状语从句和等到引导的时间状语从句和if,as long as,unless引导的条件状语引导的条件状语从句中从句中,If it doesnt rain tomorrow,well go camping.如果明天不下雨，我们将去野营。如果明天不下雨，我们将去野营。She ll write to you as soon as she gets there.用用一般现在时一般现在时表示将来表示将来.二、一般过去时二、一般过去时1.用法：用法：2.结构：结构：3.标志词：标志词：yesterday,the day before yesterday,three days ago,last night/week/month,in the past；just now=a moment ago,in 1990过去过去的的动作动作或或状态状态。【2010河北省卷河北省卷】39.I _ a mistake.Please dont be angry with me.A.make B.made C.will make D am making B三、一般将来时三、一般将来时1.1.用法：用法：2.2.结构：结构：3.标志词：标志词：tomorrow,soon,the day after tomorrow,in three days,in(the)future,next week/month/term,from now on将来的动作或状态将来的动作或状态。过去将来时过去将来时:Past Future Simple概念概念:表示过去将要发生的动作表示过去将要发生的动作结构结构:would do be(was、were)going to do标志语：标志语：常用于主句是一般过去常用于主句是一般过去 时的宾语从句中时的宾语从句中四、现在进行时四、现在进行时1.用法：用法：2.结构结构:3.标志词：标志词：-Mike,who_football in the yard?-Let me go and see.（20102010顺义）顺义）A.has playedB.will play C.was playing D.is playingA.现在动作现在动作B.现阶段动作现阶段动作now,Look!Listen!at present,at this momentis/am/are+doing注意注意A.有几个有几个瞬间动词瞬间动词可以用可以用现在进行时现在进行时表表将将来，如：来，如：begin,start,come,go,leavebegin,start,come,go,leave。1.-Lucy!Would you like to give me a hand?-OK.I_.A.will comeB.come C.am comingD.would come2.-When_you_for Toronto?-Tomorrow.A.do;leaveB.are;leavingC.will;leavingD.shall;leaveThe boy _always _ us!B.现在进行时和现在进行时和alwaysalways连用，表示说话连用，表示说话人较强烈的人较强烈的感情色彩。感情色彩。You _ always _ the same mistake!ishelping(夸赞夸赞)aremaking(责备责备)五、过去进行时五、过去进行时1.用法：用法：2.结构：结构：3.标志词：标志词：过去过去某时某段时间某时某段时间正在进行的动作正在进行的动作。at that moment,at this time yesterday,at nine last night,whenwas/were+doing【2010河北省卷河北省卷】44.I _ my clothes when the phone rang.A.wash B.washed B.am washing D.was washingD1.用法：用法：12六、现在完成时六、现在完成时过去过去的动作已经结束对的动作已经结束对现在现在的影的影响或结果。响或结果。过去过去的动作持续到的动作持续到现在现在,还可能继续持续还可能继续持续。-Mum,can I watch TV?I _(finish)my homework.-Of course,you can have finished2.结构结构3.标志词：标志词：have/has+donealready,just,yet,ever,never,so far(till now/up to now),recently,in the past 3 years,before,since+时间点,for+时间段4.瞬间动词和延续性动词瞬间动词和延续性动词 若句中出现若句中出现时间段时间段(for/since)，则必须使用则必须使用延续性动词延续性动词。瞬间动词。瞬间动词和延续性动词转换关系如下：和延续性动词转换关系如下：1.The film began 5 minutes ago.2.They left an hour ago.3.The man died a week ago.4.He joined the club 3 days ago.5.They got married 10 years ago.1.The film_ _ _ for 5 minutes.2.They_ _ _for an hour.3.The man_ _ _ for a week.4.He_ _ _ the club for 3 days.5.They_ _ _for 10 yearshas been onhave been awayhas been deadhave been married has been in6.He came here an hour ago.7.Jack got home 2 hours ago.8.Mum opened the door just now.9.I borrowed the book a week ago.10.I bought the car a year ago.He_ _ here since an hour ago.Jack_ _home for 2 hours.The door_ _open for a while.I_ _the book for a week.I_ _the car since a year ago.has beenhas beenhas beenhave kepthave had过去完成时过去完成时:Past Perfect概念概念:表示将要发生的动作表示将要发生的动作结构结构:had done标志语：标志语：by the time,或主句为或主句为 一般过去时的宾语从句中一般过去时的宾语从句中1.Sorry,I_to help you at ten.I was busy at the moment.A.wont come B.cant come C.didnt come D.shouldnt come2.He_this pen for five years.He_it in 1997.A.has bought,bought.B.bought,bought C.has kept,has bought D.has had,bought3.She_the flowers in the garden when I_to see her yesterday.A.watered，went B.was watering，went C.watered，was going D.was watering，was going4.I don t know if my friend_.If he _,Ill let you know.A.comes,comes B.comes,will come C.will come,comes D.will come,will come5.It_10 years since I_here.A.is,come B.is,have come C.was,came D.is,came6.His brother_from home for a long time.A.has left B.has been away C.left D.will leave 7.-Lucy,_you_your ticket?-Not yet.(2003河北省河北省)A.did;find B.have;found C.has;found D.do;find8.-I dont know if his uncle_-I think he_if it doesnt rain.A.will come;comes B.will come;will comeC.comes;comesD.comes;will come9.-Hurry up!Its time to leave.-OK,_.(2003江西江西)A.Im comingB.Ill comeC.Ive come D.I come10.I must return the camera to Li Lei,I_it for two weeks.A.keepB.borrowed C.have kept D.have lent(2003辽宁辽宁)11.-When_ this kind of computer_?-Last year.(2002天津天津)A.did;useB.was;usedC.is;usedD.are;used12.-Jerry,_you_your lost book?-Not yet.A.did;findB.have;foundC.has;foundD.do;find13.Do you know if_back next week?If he_back,please let me know.(2002黑龙江黑龙江)A.he comes,will comeB.will he come;comesC.he will come;comesD.will he come,will come14.By the time I got back,the taxi_already_.A.had;left B.has;left C.have;left D had;leavedbe+done被动语态的基本结构被动语态的基本结构:有各种时态的变化有各种时态的变化考点一考点一:一般现在时的被动语态：一般现在时的被动语态：am/is/are+done一般过去时的被动语态：一般过去时的被动语态：was/were+done一般将来时的被动语态：will+be+donebe going to+be+done现在完成时的被动语态：have/has+been+done含有情态动词的被动语态：情态动词+be+done考点二考点二:被动语态中的特殊情况被动语态中的特殊情况:Good medicine _ bitter.A.tastes B.is tasted C.taste This pen _ well.A.is sold B.sell C.sells1.感官动词用主动表被动,使役动词（make,have,let)+do幻灯片 29；2.一些动词如一些动词如sell(销售销售),wash(洗洗),clean(打扫打扫),write（写）（写）burn(燃烧燃烧),cook(煮煮)等与副词如等与副词如well(好好),easily(容易地容易地),perfectly(十分地十分地)等连等连用用,描会事物的特性，用主动表被动描会事物的特性，用主动表被动 主动：主动：see/hear/make sb.do sth 被动：被动：be seen/heard/made to do sth使役动词使役动词(let除外）和感官动词变为除外）和感官动词变为被动语态时必须还原被动语态时必须还原toThe man _ clean the toilet because he _ rubbish bout when the police walked past the park.A.was made;was seen to throw B.was made to;was seen throwing C.made;saw幻灯片幻灯片 28 Children should _.A.take good care of B.be taken good care C.be taken good care of固定短语的被动不要丢掉后面的介词固定短语的被动不要丢掉后面的介词 Your desk _.A.needs repair B.needs repairing C.needs to repairneed,want,require（要求，需要）（要求，需要）,后面接后面接doing主动表被动。主动表被动。need to be done =need doing保护地球，我们唯一的家。保护地球，我们唯一的家。没有人能离开水和空气生存没有人能离开水和空气生存.很多河流湖泊已经受到严重污染很多河流湖泊已经受到严重污染.如果我们不节约水，那么最后一滴水也许会是我如果我们不节约水，那么最后一滴水也许会是我们人类的眼泪。们人类的眼泪。Save the earth,Our only home.No one can live without water or air.Many rivers and lakes are seriously polluted.If we dont save water,the last drop of water will be a tear-drop of us.我们应该阻止工厂生产有害气体。我们应该阻止工厂生产有害气体。不要践踏草坪。不要践踏草坪。我们知道，水对人类来说是非常的重要。我们知道，水对人类来说是非常的重要。不随地扔垃圾。不随地扔垃圾。We should stop factories from producing harmful gases.Please keep off the grass.Dont litter the floor.As we know,water is very important to man.We never know the worth of water till the well is dry.井干方知水可贵井干方知水可贵A single flower does not make a spring.一花独放不是春一花独放不是春,百花齐放春满园百花齐放春满园.谢谢大家！结结 语语
