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时间:2020-03-16
《人教版英语必修四同步导学精品Unit-2-Section-2ppt课件.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、英 语必修④·人教版新课标导学Unit2WorkingthelandSectionⅡLearningaboutLanguage2自主预习3合作探究4巩固提升5课时作业1语法精讲语法精讲情态动词(Ⅰ)动词-ing形式作主语和宾语自主预习用所给词的适当形式填空,并说明其在句中充当的成分。1.Sincethen,___________(find)waystogrowmorericehasbeenhislifegoal.(主语)2.Asayoungman,hesawthegreatneedfor______________
2、(increase)thericeoutput.(介词的宾语)3.YuanLongpingsearchedforawaytoincreasericeharvestswithout____________(expand)theareaofthefields.(介词的宾语)4.However,hedoesn'tcareabout________(be)famous.(介词的宾语)findingincreasingexpandingbeing5.Heenjoys________(listen)toviolinmusic,
3、__________(play)mah-jong,swimmingandreading.(宾语)6.__________(spend)moneyonhimselforleadingacomfortablelifealsomeansverylittletohim.(主语)7.Just____________(dream)forthings,however,costsnothing.(主语)8.Heawokefromhisdreamwiththehopeof____________(produce)akindofric
4、ethatcouldfeedmorepeople.(介词的宾语)listeningplayingSpendingdreamingproducing合作探究语法精点一、基础点拨(一)动词-ing形式在句子中可以作主语、定语、表语、宾语补足语和状语主动语态被动语态一般式doingbeingdone完成式havingdonehavingbeendone1.动词-ing形式在时态上分为一般式和完成式。一般式表示动词-ing的动作和谓语动词的动作同时进行如下面例①;完成式表示在谓语动词所表示的动作之前发生的动作如下面例②。①
5、Sheenjoysplayingthepiano.她喜欢弹钢琴。②Hewaspraisedforhavingdoneagooddeed.他因做了好事而受到表扬。2.动词-ing形式在语态上分为主动式和被动式。主动式表示它的逻辑主语是-ing分词的动作执行者,如下面例①;被动式表示它的逻辑主语是-ing分词的动作承受者,如下面例②。①Heinsistedonsendinghertohospital.他坚持要把她送到医院去。②Heinsistedonbeingsenttoworkinthecountryside.他坚持
6、要被派到乡下去工作。单句改错。①Thebuildingbuilding(whichisbeingbuilt)therewillbeusedasalibrary.第二个building→beingbuilt②Beingrisenintheeast,thesunlooksbeautiful.Beingrisen→Rising完成句子。③_____________________,theycameintotheroom.他们说着笑着走进了房间。④_______________heraddress,wecan'tgetin
7、touchwithher.不知道她的地址,我们无法与她取得联系。TalkingandlaughingNotknowing(二)动词-ing的形式作主语1.动词-ing形式作主语时,多表示经常性、习惯性的动作,谓语动词多用单数形式。①Laughingoftenwillbenefityoualot.笑口常开好处多多。②Havinglivedabroadforalongtimemakeshimhomesick.在国外生活了很久令他想家。2.形式主语it代替动词-ing形式作主语的常见结构:(1)Itis+adj.+doi
8、ngsth.Itis/feelsfunnydoingsth.做某事(感觉)很滑稽。Itisuselessdoingsth.做某事无用It'sworthwhiledoingsth.做某事是值得的(2)Itisawasteof+n.+doingsth.It'sawasteoftimedoingsth.做某事是浪费时间(3)Itisno+n.+doingsth.I
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