Unit3FascinatingParksVing形式作主语课件高中英语人教版选择性

Unit3FASCINATINGPARKSGrammar——theV–ingusedassubjectLeadingin1.V-ing形式（短语）作主语的功能(1)动词-ing形式作主语时，表示经常性、习惯性或抽象的动作。

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Lookingafterchildrenisherwork.她的工作是照顾孩子。(2)todo形式作主语表示具体的、一次性的或将来的动作。

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Tolookafterchildrenisherjobtoday.她今天的工作是看孩子。即时训练：1.

（obtain）goodgradesishisbiggestdream.

2.

(swim)doesgoodtoourhealth.ToobtainSwimming2.V-ing形式（短语）

作主语的主谓一致(1)单个的动词-ing形式作主语时，谓语动词用单数形式。◆

Takingappropriateexerciseregularlyisnecessaryforgoodhealth.定期适当锻炼对健康是必要的。(2)意义不同的两个及以上V-ing形式并列作主语时，谓语动词用复数形式。◆

Goingtobedearlyandgettingupearly

isagoodhabit.早睡早起是一个好习惯。◆

ListeningtotheEnglishtapesandwatchingEnglishfilms

aregoodwaystolearnEnglish.听英文磁带和看英文电影是学英语的好方法。即时训练:(1)Readinginbed

(be)notgoodforyoureyes.(2)Readingandwriting

(be)necessaryforus.isare(1)Itis＋adj.＋doingsth.Itisfunny/useless/worthwhiledoingsth.

做某事是有趣的/无用的/值得的。(2)Itis＋n.＋doingsth.It'sawasteoftimedoingsth.

做某事是浪费时间。(3)Itisno＋n.＋doingsth.It'snogood/nouse/nofundoingsth.

做某事不好/没用/没意思。即时训练：1.It'sawasteoftime

(try)topersuadesuchastubbornperson.2.Itisnouse

(write)tohimbecauseheneveranswersletters.3.it代替V-ing形式（短语）形式作形式主语writingtrying4.Therebe句型中V-ing形式（短语）作主语当句型“Thereisno...”表示“不允许、禁止某种行为的发生或存在”时，需用V-ing形式作主语。◆Thereisnodenyingthattheenvironmenthasimprovedalot.不能否认环境状况已经得到很大改善。◆Thereisnotelling

whatheisgoingtodo.不能说出他要做什么。即时训练--完成句子(1)Thereisno

(joke)withhimaboutsuchaseriousissue.joking5.V-ing形式（短语）作主语的否定形式动词-ing形式的否定形式通常是在其前加not，带有逻辑主语时，not应放在逻辑主语和动词-ing形式之间。◆Notknowinghowtouseacomputermakesitmoredifficultforhimtodohisacademicresearch.不知道如何使用电脑使他更难进行学术研究。即时训练--完成句子(1)

(未能通过考试)makeshimdepressed.Notpassingtheexam6.V-ing的复合结构作主语

V-ing形式的复合结构由形容词性物主代词或人称代词宾格、名词或名词所有格加动词-ing，即“sb./sb.'s＋doing”构成。动词-ing形式的复合结构实际上是给动词-ing形式加了一个逻辑主语。动词-ing形式的复合结构有四种形式：1．形容词性物主代词＋动词-ing2．人称代词宾格＋动词-ing3．名词＋动词-ing4．名词所有格＋动词-ing特别关注：动词-ing的复合结构作主语时，只有两种：1&4◆Hercomingtohelpencouragedallofus.她来帮忙鼓舞了我们所有人。◆Mary's(不可用Mary)beingillmadehermotherupset.玛丽病了，这使她母亲很难过。翻译：(1)他的离开使他的朋友非常生气。

madehisfriendveryangry.Hisleaving7.V-ing的时态语态时态语态主动语态被动语态一般时doingbeingdone完成时havingdonehavingbeendone◆Sometimesbeingpunished

maybeagoodthing.

有时被惩罚可能是一件好事。◆Havingbeengiven

atoycarasagiftmadetheboylaugh.那男孩收到一辆玩具汽车作为礼物后笑了。(1)________________(trap)inaheavytrafficjamisquiteanunpleasantexperience.(2)

(bite)bymydogmadeLindarefusetoplaywithmeagain.BeingtrappedHavingbeenbitten1.(2021·全国乙卷)Firstly，_______(do)houseworkishelpfulforustobearesponsibleperson.2.(2024全国I卷)Thelatest________

(engineer)techniquesareappliedtocreatethisprotectivefunctionalstructure.3.(2024全国I改编)Whenreadingtextsofseveralhundredswordsormore,

(learn)isgenerallymoresuccessfulwhenitisonpaperthanonscreen.4.(2023全国I改编)

(cycle)isthemosteconomical,sustainableandfunwaytoexplorethecity.

5.(2023全国I卷）NomatterwhereIbuythem,onesteamerisrarelyenough,yettwoseemsgreedy,soIamalwaysleft

________(want)morenexttime.Consolidation[品味高考]engineeringdoinglearningCyclingwantingV-ing作主语1.功能2.主谓一致3.it代替v-ing作主语句型4.Therebe句型Summary:Mind-mapDrawamindmaptoconcludetheuseofV-ingformasthesubject7.V-ing时态语态6.V-ing复合结构作主语5.V-ing否定形式V-ing宾语定语Ilikeclimbing.表语主语Myhobbyisplayingbasketball.Thereisawaitingroom.状语Playingbasketballismyhobby.Isawhimreadingintheclassroom.补语Seeingfromthetop,hefoundt