2018-2019学年人教版英语必修四同步导学精品课件：Unit-2-Section-2.ppt

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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______________(in

2、crease)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)akindofricethatcoul

4、dfeedmorepeople.(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。①Sheenjoyspla

5、yingthepiano.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.他坚持要被派到乡下去工作。单句改错。

6、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'tgetintouchwithher.不知道她的

7、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.＋doingsth.Itis/feelsfunny

8、doingsth.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