现在进行时的结构(3页).doc

《现在进行时的结构(3页).doc》由会员分享，可在线阅读，更多相关《现在进行时的结构(3页).doc（3页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、-现在进行时的结构-第 3 页一、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-ingEg:carry-carrying,catch-catching,drink-drinking,enjoy-enjoyinghurry-hurrying,do-doing,read-reading,think-thinking2.如果动词以-e结尾,则去掉-e,再加-ing,如come-coming,have-having,make-making,ride-

2、riding,write-writing,take-taking,use-using3.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-sitting4.如果动词有两个音节,且重音在第二个音节上,则末尾的辅音字母双写, 加-ing,如:forget-forgetting,prefer-preferring,travel-travelling swim-swimming 5.以-ic结尾的动词，应先把-ic变为-ick,再加-ing,eg:panic/pa

3、nicking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Iamnotsinging.Theyarentwriting.3）一般疑问句及回答：be(am/is/are)+主语+doing+其他成分AmIsinging?Yes,you

4、are./No,youarent.Aretheywriting?Yes,theyare./No,theyarent.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-ImYouare-YoureHeis-HesSheis-ShesItis-ItsWeare-WereTheyare-Theyre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.W

5、hatareyoudoing?Someonesknockingatthedoor2.正在进行着的动作可视为未完成的动作：Hestalkingtohisfriendsintheclassroom.可用still一词强调动作的持续性Hesstilltalkingtohisfriendsintheclassroom.3.表示一段时间内重复性的动作,说话时动作未必正在进行Mr.Blackiswritinganotherarticle.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状态Whatsyourbrotherdoingthesedays?Hesstudy

6、ingEnglishatOxfordUniversity.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.Itsgettingcolderandcolder.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.一.用现在进行时完成下列句子:1

7、._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.11.Wecanthelpyou,becausewe_(have)classes.12._theboy_(write)hishomewor

8、k?13.Look!Thesebutterflies_(fly)inthesky.14.Listen!Thegirl_(sing)inthenextroom.15.Thenaughtyboy_(swim)intheriver.二.选择1.Look.Lucyis_anewbiketoday.A.jumpingB.runningC.ridingDtakeing2.Thechildren_football.A.isplayingB.areplayingC.playtheD.playa3.They_TVintheevening.Theydotheirhomework.A.arewatchingB.ca

9、ntwatchingC.dontwatchD.dontwatching4.Listen!She_intheclassroom.A.issingingB.singC.tosingD.issing5._areyoueating?Imeating_meat.A.What,someB.Which,anyC.Where,notD.What,a6.Isshe_something?A.eatB.eatingC.eattingD.eats7Icantcatchupwiththefashion,becausetheclothesstyle_allthetime.A.haschangedB.ischangedC.ischangingD.changed8.Itssixintheafternoon.TheGreens_lunchtogether.A.hasB.arehavingC.havehadD.hadhad9.Dontmakeanynoisewhilethestudents_totheclass.A.arelisteningB.listenedC.havelistenedD.hadlistened10.JackandKetty_inthelake.Letsjointhem,shallwe?A.swimB.haveswumC.swamD.areswimming