重点初中英语现在进行时课件 7页

重点初中英语现在进行时课件　　初中英语现在进行时课件　　一、概念　　现在进行时表示说话时正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作．　　结构：助动词be(am/is/are)+现在分词.　　二、现在分词的构成：　　1.大多数动词后可在动词后直接加-ing．　　Eg:carry-carrying,catch-catching,drink-drinking,enjoy-enjoyinghurry-hurrying,do-doing,read-reading,think-thinking　　2.如果动词以-e结尾,则去掉-e,再加-ing,　　如come-coming,have-having,make-making,ride-riding,write-writing,take-taking,use-using．　　3.如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母双写,再加-ing　　如：hit-hitting,let-letting,put-putting,run-running,sit-sitting．　　4.如果动词有两个音节,且重音在第二个音节上,则末尾的辅音字母须双写,再加-ing,　　如:for’get-forgetting,pre’fer-preferring,up’set-upsetting．试比较’benefit/benfiting,’differ/differing,’profit/profiting,这些词的重音在第一个音节上,因此其末尾的辅音字母不双写．\n　　5.以-ic结尾的动词,应先把-ic变为-ick,再加-ing,eg:panic/panicking,picnic/picnicking,但lie/lying,die/dying,tie/tying是特殊变化要记住．　　三、句型结构：　　1.现在进行时的肯定形式、否定形式、疑问形式及其回答,所有变化都体现在助动词be(is/am/are)上．　　1)现在进行时的肯定形式：主语+be(am/is/are)+doing+其他成分　　Iamsinging.Theyarewriting.　　2)现在进行时的否定形式:主语+be(am/is/are)+not+doing+其他成分　　Iamnotsinging.Theyaren’twriting.　　3）一般疑问句及回答：be(am/is/are)+主语+doing+其他成分　　AmIsinging?Yes,youare./No,youaren’t.　　Aretheywriting?Yes,theyare./No,theyaren’t.　　4)特殊疑问句及回答:特殊疑问词+be(am/is/are)+主语+doing+其他成分　　Whatareyoudoing?Weareplaying(要求就提问内容具体回答).　　2.缩写形式如下:　　Iam---I’mYouare---You’reHeis---He’sSheis---She’s　　Itis---It’sWeare---We’reTheyare---They’re　　3.说明:不是所有动词都能用现在进行时态的,如：　　see、like、want、know等动词往往都不用进行时态．\n　　四．用法：　　1.表示现在(指说话人说话时)正在发生的事情．往往与now,atthemoment,just等副词连用,以示强调．　　Wearewaitingforyou.Whatareyoudoing?Someone’sknockingatthedoor．　　2.正在进行着的动作可视为未完成的动作：　　He’stalkingtohisfriendsintheclassroom.　　可用still一词强调动作的持续性　　He’sstilltalkingtohisfriendsintheclassroom.　　3.表示长期的或重复性的动作,说话时动作未必正在进行．　　Mr.Blackiswritinganotherarticle.　　Don’ttakethatbookaway.Yourfather’susingit.　　SheislearningpianounderMr.Black.　　4.现在进行时可用来表示不会长期发生的动作或情况,或被认为在短期内正在进行的动作或存在的情况：　　What’syourbrotherdoingthesedays?He’sstudyingEnglishatOxfordUniversity.　　5.现在进行时也可以用来表示当前的动向：　　Peoplearebecomingmoreandmorebeautifulthesedays.　　6.表示渐变的动词有：become,turn,get,grow,run,go,begin等．　　Theleavesareturningbrown.　　It’sgettingcolderandcolder.\n　　7.与always,constantly,forever等词连用,表示反复发生的动作或持续存在的状态,往往带有说话人的主观色彩．　　Youarealwayschangingyourmind.　　8.现在进行时(以及begoingto）可以表示为将来安排好的活动和事件We’respendingnextwinterinChina.用arrive,come,go,leave等动词的现在进行时描写行程安排,也通常有“将到达”和“将离去”的意思：He’sarrivingtomorrowmorning.　　9.当现在进行时表示某事发生的次数过多时,则有时含有抱怨,讨厌,赞扬等的意思：　　Heisalwayssingingatnight,andwecan’tfallasleeplateatnight.　　练习　　一.用现在进行时完成下列句子:　　1.______you__________(fly)akite?Yes,_______.　　2.______you___________(sit)intheboat?　　3.______he_____________(talk)withme?　　4.We_______________(play)footballnow.　　5.What_________you__________(do)?　　6.I_____________(sing)anEnglishsong.　　7.What________he____________(mend)?　　8.He______________(mend)acar.　　9.Theseboys_________(play)tennisontheplayground.　　10.Mymother______________(cook)inthekitchen.\n　　11.Wecan’thelpyou,becausewe____________(have)classes.　　12.________theboy___________(write)hishomework?　　13.Look!Thesebutterflies_________(fly)inthesky.　　14.Listen!Thegirl___________(sing)inthenextroom.　　15.Thenaughtyboy__________(swim)intheriver.　　二.选择　　1.Look.Lucyis_____anewbiketoday.　　A.jumpingB.runningC.ridingDtakeing　　2.Thechildren_____football.　　A.isplayingB.areplayingC.playtheD.playa　　3.They______TVintheevening.Theydotheirhomework.　　A.arewatchingB.can’twatchingC.don’twatchD.don’twatching　　4.Listen!She____intheclassroom.　　A.issingingB.singC.tosingD.issing　　5.______areyoueating?I’meating______meat.　　A.What,someB.Which,anyC.Where,notD.What,a　　6.Isshe____something?　　A.eatB.eatingC.eattingD.eats　　7.Mydictionary___,Ihavelookedforiteverywherebutstill___it.　　A.haslost,don’tfindB.ismissing,don’tfindC.haslost,haven’tfoundD.ismissing,haven’tfound.\n　　8..Havingacomputerforpersonaluseisnoeasytaskbecausetechnology_______sorapidly.　　A.ischangingB.haschangedC.willhavechangedD.willchange　　9.Thebuilding_______,Ican’tstandthenoise.　　A.wasbeingbuiltB.isbuiltC.isbeingbuiltD.builds　　10.Ican’tcatchupwiththefashion,becausetheclothesstyle_______allthetime.　　A.haschangedB.ischangedC.ischangingD.changed　　11.It’ssixintheafternoon.TheGreens_______lunchtogether.　　A.hasB.arehavingC.havehadD.hadhad　　12.Don’tmakeanynoisewhilethestudents_______totheclass.　　A.arelisteningB.listenedC.havelistenedD.hadlistened　　13.JackandKetty_______inthelake.Let’sjointhem,shallwe?　　A.swimB.haveswumC.swamD.areswimming　　14.Look!Thechildren_______basketballontheplayground.　　A.playsB.playedC.isplayingD.areplaying　　15.Thekite_______highintheskynow.Itlookslikeabigbird.　　A.hasflownB.isflyingC.wasflyingD.flew　　16.Asweallknow,thepopulationintheworld_______fasterandfaster.　　A.isgrownB.isgrowingC.aregrownD.aregrowing　　17.Tomysurprise,he_______inclass.\n　　A.isalwaysspeakingB.wouldalwaysspeakC.hasalwaysbeenspeakingD.doesspeakalways　　18.Iwanttoknowwhenhe_______forNewYorktomorrow.　　A.hasleftB.isleavingC.hadleftD.hasbeenleaving　　19.He_______ofhowhecandomoreforthepeople.　　A.hadalwaysthoughtB.isalwaysthinkingC.hasalwaysbeenthoughtD.thinkingalways　　20.Forests_______andburnedatsuchaspeedthattheywilldisappearfromtheearthinthefuture.　　A.cutB.arecutC.arebeingcutD.hadbeencut　　1.Are,flying,Iam2.Aresitting,3.Is,talking4.areplying5.are,doing6.amsinging7.is,mending8.ismending9.areplying10.iscooking11.arehaving12.Is,writing13.areflying14.issinging,15.isswimming　　1.C2.B3.C4.A5.A6.B7.D8.A9C10.C11.B12.A13.D14.D15.B16.B17.A18.B19.B20.C搜集整理，仅供参考学习，请按需要编辑修改