人教版（2019）选择性必修第一册Unit3 Fascinating parks Discovering Useful Structures 语法课件

LearningAboutLanguageDisvoverusefulstructures1.Haveyoueverseenthesesigns?Theyareusedinthe

V–ingform.Leading-in1.Iwakeuptothesoundofthewindbuffetingtheclothofmytent.

(P1)2.Eventhoughthesunisbrightlyshining,tellingwhetheritismorningornightisimpossible.

(P1)3.Checkingmywatch,Iseethatitis7:30a.m.(P1)4....andsomesweetandsourberriesthatIfoundgrowingnearmytent.(P3)5.Beinginsuchabeautifulandwildplacemakesmefeelblessedtobealive.(P4)6.HereIam,aloneunderthisbroadsky,breathingthefreshair,andenjoyingthisgreatadventure.

(P4)2.FindouttheV-ingformsandtellthefunctions.(attribute)(subject)(adverbial)(objectcomplement)(subject)(adverbial)3.SummaryforthefunctionsofV-ingformV-ingform动名词现在分词主语宾语表语定语定语表语状语宾补Playingwithfireisdangerous.Jimlikesjumpinginmuddypuddles.Herideaisbuildingupanewcompany.Peoplelivingtherearequitefriendly.Hereallyneedsawashingmachine.Theperformancewasreallyamazing.Laughingandtalking,theywentin.Ilovetowatchherperformingonthestage.Presentation1.DifferentformsofV-ingform.

形式主动语态被动语态一般式完成式否定式doingbeingdonehavingdonehavingbeendonenot+not+2.V-ingformusedassubjectindifferentsituations.(1)动词­ing形式作主语时，往往表示经常性、习惯性的动作或状态，通常置于句首。动词-ing有时态和语态的变化，单个的动词-ing做主语谓语动词用单数。两个或两个以上的动词-ing短语作主语时，如果表示一件事，谓语动词用单数；如果表示两件或多件事情，谓语动词用复数。Helpingothersmeanshelpingourselves.帮助别人意味着帮助我们自己。Goingtobedearlyandgettingupearlyisgoodforourhealth.早睡早起对健康有益。DrawingandplayingfootballarewhatItookinterestinasateenager.画画和踢足球是我少年时的兴趣爱好。（2）有时可用it作形式主语前置，真正的主语是动词-ing形式。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。Itisnousewaitingforotherpeopletomakedecisionsforyou.等别人替你做决定是没有用的。It

isawasteoftimepersuadingsuchapersontojoinus.劝说这种人加入我们是浪费时间。It+be+awasteoftimedoing做…是浪费时间的Itis/wasnogood/usedoing做…是没用处的Itisnopleasuredoingsth.做…没有乐趣Itis/wasfundoing做…是有趣的Itis/wasworthwhiledoing做…是值得的Itis/wasuselessdoing做….是没用的2.有时为了句子平衡，避免头重脚轻,用it作形式主语，而把真正的主语(动词-ing短语)后置。常见的固定句型有：(3)在“therebeno...”结构中,表示“不允许、禁止某种行为的发生或存在”时，需要用动词­ing形式作主语，常译为“无法……;不允许……”。Thereisnojokingaboutsuchmatters.

这种事开不得玩笑。Thereisnosayingwhenitwillstopraining.无法断定这场雨什么时候会停。①Thereis/wasnopoint(意义)doing干…无意义②Thereisnosenseindoing做…没有道理③Thereis/wasnousedoing干…无意义④Thereis/wasnothingworsethandoing没有比…更糟的⑤Thereisnodoing...无法……;不允许……（4）动词-ing的复合结构作主语时，通常有两种形式：

①形容词性物主代词+动词-ing②名词所有格+动词-ingHisbeinglateagain

madehisteacherveryangry.他再次迟到让老师很生气。

Mike’sreturningtowork

isagreathelptohisfamily.麦克回来工作对他全家来说都是一大帮助。Theircomingtohelpwasagreatencouragementtous.他们前来帮忙对我们来说是极大的鼓舞。（5）动词-ing形式的一般式、完成式、被动式与否定式：①一般式所表示的动作或状态，与谓语动词所表示的动作或状态同时发生，或发生在谓语动词之后。②被动式表示该动词与句子的主语之间构成被动关系。③完成式所表示的动作发生在谓语动词所表示的动作之前。④否定形式通常是在其前加not。Notknowinghowtouseacomputermakesitmoredifficultforhimtodohisacademicresearch.不知道如何使用电脑使他更难进行学术研究。Sometimesbeingpunishedmaybeagoodthing。

有时候被惩罚是一件好事。HavingbeenbittenbymydogmadeLindareufsetoplaywithmeagain.琳达已经被我的狗咬了，所以她拒绝再和我玩。Nothavingdonehishomeworkmakestheteacherangry.未完成他的作业让老师很生气。动词-ing作主语，常常表示抽象的习惯性或经常性的动作。而不定式一般表示一次性、具体性的行为;且表示将来的事情或未达成的目的。

Tolookafterchildrenisherjobtoday.

她今天的工作是看孩子。

Lookingafterchildrenisherwork.

她的工作是看孩子。3.DifferencebetweenV-ingformandinfinitive(todo)Practice1.RewritethefollowingsentenceswithV-ingform.1Itisbothchallengingandrewardingtostudyabroad.2ItwouldhardlybepossibletogoonahikingtourinSarekinwinterduetotheextremecold.3Honestly,itcanbebothexcitingandterrifyingtoexploreavastunknownland.4Itisgoodtoadoptapositiveattitude,evenwhenthingsaredifficult.5Itisstronglyadvisedtohirelocalguides,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.Studyingabroadisbothchallengingandrewarding.GoingonahikingtourinSarekinwinterwouldhardlybepossibleduetotheextremecold.Honestly,exploringavastunknownlandcanbebothexcitingandterrifying.Adoptingapositiveattitudeisgood,evenwhenthingsaredifficult.

Hiringlocalguidesisstronglyadvised,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.PPT模板http://www.xxx/moban/

XixiNationalWetlandPark(西溪国家湿地公园),________10squarekilometresinwesternHangzhou,isthefirstnationalwetlandparkinChina.__________citylife,nature,andwetlandsmakestheparkapopulardestinationbothfortouristsandlocalresidents.AtXixi,______aboattour,________alongpaths,and___________localcustomsandtraditionsofthevillagesinthisparkareatthetopofthelistofpeople’sfavouriteactivities.Withtrees,bushes,andcolourfulflowers________alongtheriversides,theparkshowsdifferentsidesofbeautyindifferentseasons.Inordertobetterdevelopaswellaspreservethisplace,________humanimpactonXixiWetlandwasconsideredbytheparkdesigners.Allthenewbuildingsweredesignedinatraditionalwaytofitintothenaturalenvironment.Thisgreen,wateryworldishometomanybirdsandfishes.Wi