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Leadin:Doyourememberthisquestion?(watch)afamilyofchimpswakeupisourfirstactivityoftheday.watchingUnit2WorkingtheLandGrammar:V-ing做主语和宾语1.动词-ing形式的构成:是在动词末尾加-ing形式构成,因此叫动词的-ing形式。如:do-doing,help-helping,ask-asking,etc.否定形式:not+-ing构成2.动词-ing形式不能单独作谓语如:Ireadingthebook.(改错)Iamreadingthebook.一.作主语.动名词作主语时,句子有三种形式:1.动名词直接置于句首主语的位置上。1)对别人说谎是我们万万不能干的.issomethingweshouldneverdo.2)学习新单词对我来说非常重要。isveryimportantforme.3)说比做容易。iseasierthandoing.LearningnewwordsTalkingSpeakingliestoothers2.用形式主语it,把真正的主语——动名词结构移置句尾。但这种句子形式有一定的限制,作表语的只能是某些形容词或少数名词,如useful,useless,good,fun;nouse,worth等。如:1)这个电影值得看。2)和拉珍争辩是没有什么用的。Seeingthisfilmisworthing.It’sworthseeingthisfilm.ArguingwithLazhenisnouse.ItisnousearguingwithLazhen.3.在therebeno...结构中作主语,这种结构的意思相当于“Itisimpossibletodo…”。Thereisnosenseindoing做……没有道理Thereis/wasnousedoing做……无意义Thereis/wasnopointdoing做……无意义注意:Thereis/wasnoneedtodosth.二、动名词用作宾语动名词作宾语有两种情况。1.只能后接-ing作宾语的动词,常见的有avoid,consider,enjoy,keep,finish,suggest,dislike,delay,escape,cannothelp,imagine,mind,miss,practise,giveup,,risk,insiston,lookforward,等。例如:1)Ican’tavoidmakingmistakes.2)Peoplecouldn’thelplaughingfoolishman.2.既可接-ing和todo作宾语的动词,常见的有:begin,start,continue,like,love,prefer,by,mean,forget,remember,hate等。A.在like,love,hate,prefer等动词之后,用-ing或不定式意义上没有什么不同,只是侧重点有些不同,ing表示泛指的动作,todo表示具体的一次性动作。B.在动词forget,remember,regret之后,用动名词与不定式意义不同。-ing表示动作已经发生,-todo表示动作还没发生;Iremembergivinghimtheletter.I’llremembertogivehimtheletter.Iwillnotforgethelpingher.Iwillnotforgettohelpher.我记得曾经写过信给他。我会记住写信给他的。我不会忘记曾经帮过她.我不会忘记要帮助她.3.在介词后接动名词作宾语1)Iinsistonstudyinghard.2)Shewasveryinterestedinlisteningtothissong.注:下列短语中的to都是介词,所以动词要接-ing形式:devoteto,payattentionto,leadto,lookforwardto,stickto等。1.—Let’shavearest.—Notnow.Idon’twanttostop__________yet.A.studyB.tostudyC.forstudyingD.studying解析:stopstudying意为“停止学习”。D单项选择2.—Letmetellyousomethingaboutthejournalists.—Don’tyouremember________methestoryyesterday?A.toldB.tellingC.totellD.tohavetold解析:remembertellingme意为“记得曾经告诉过我”。B1.Ifyoucankeep________(read)Englishnewspapers,yourEnglishwillbeimproved.2.Hehaspromised__________(come)tomybirthdayparty.3.Ihate_________________(tell)lies!4.Iwillneverforget__________(go)toBeijingwithhimlastsummer.Iforgot________(tell)herthenews;sosheknewnothingaboutit.Completethesesentences:readingtocometelling/totellgoingtotell1.学英语很有趣。StudyingEnglishisveryinteresting.2.读这本书很有意义(meaningful)。3.我记得在哪里见过他。TranslationReadingthisbookismeaningful.Irememberseeinghersomewhere.4.我后悔没好好学习。Iregretnotstudyinghard.5.帮助别人就是帮助你自己。Helpingothersishelpingyourself.Thankyou!
本文标题:高中英语必修四unit2语法课件
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