Unit3FascinatingparksDiscoveringUsefulStructures课件高中英语人教版选择性

UNIT3DiscoverUsefulStructures动词-ing形式作主语1.TomasterthebasicgrammarrulesofV-ingformasthesubject.2.Tounderstandthegrammarruleof“It”asformalsubject.3.Putwhathasbeentaughtintopractice.LearningobjectivesLovinghimislikedrivinganewMaseratidownadeadendstreetFasterthanthewind,passionateassin,endingsosuddenly

himisliketryingtochangeyourmindonceyou'realreadyflyingthroughthefreefallLikethecolorsinautumnsobrightjustbeforetheyloseitall

himwasblue,likeI'dneverknown

himwasdarkgray,allalone

himwasliketrying

toknowsomebodyyounevermetButlovinghimwasred

himwasredTouchinghimwaslikerealizingallyoueverwantedwasrightthereinfrontofyouMemorizinghimwasaseasyasknowingallthewordstoyouroldfavoritesongFightingwithhimwasliketryingtosolveacrosswordandrealizingthere'snorightanswerRegrettinghimwaslike

wishingyouneverfoundoutthatlovecouldbethatstrongLovingLosingMissing

ForgettingLovingsubjectLead-inWhat’sincommon?Findmoresentenceswiththe–ingformasthesubjectfromthereadingpassage.Eventhoughthesunisbrightlyshining,tellingwhetheritismorningornightisimpossible.Gettinghereisquitedifficult,soapartfromtheSamiveryfewpeoplehaveeverseenSarek.Forhundredsofyears,lookingafterreindeer

wasawayoflifefortheSami.Beinginsuchabeautifulandwildplacemakesmefeelblessedtobealive.①②③④

Activity1

Observeanddiscover动词-ing形式作主语Eventhoughthesunisbrightlyshining,tellingwhetheritismorningornightisimpossible.Gettinghereisquitedifficult,soapartfromtheSamiveryfewpeoplehaveeverseenSarek.Forhundredsofyears,lookingafterreindeer

wasawayoflifefortheSami.Beinginsuchabeautifulandwildplacemakesmefeelblessedtobealive.①②③④单数单个v-ing作主语，表示经常性、习惯性动作,谓语动词用

Drawingandplayingfootball

whatItookinterestinasateenager.

画画和踢足球是两件事

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

；如果表示两件或多件事情，谓语动词用

。

isare早起早睡是一件事Observeanddiscover单数复数Goingtobedearlyandgettingupearly

goodforourhealth.[即时演练]——单句语法填空(1)_________(read)aloudisveryimportantforustolearnaforeignlanguage.(2)Collectingstamps

(be)myhobby.(3)Sittingandtalkingtooldfriends

(be)apleasantwaytospendanevening.(4)Listening,speaking,readingandwriting______(be)basicskillsofalanguage.(5)_______（ask）awoman’sage

(be)impoliteinourcountry.ReadingisisareAskingis

Activity2ObserveanddiscoverPlayingvideogamesisawasteoftime.Itisawasteoftimeplayingvideogames.形式主语真正主语It在句首作形式主语，动词-ing形式后置作真正的主语，用形容词或名词作表语。It作形式主语it作形式主语,常用动名词短语作真正主语的句式:Itisnouse/uselessdoingsth.做某事没有用的。Itisnofun/pleasuredoingsth.做某事是无趣的.Itisnogooddoingsth.做某事没有好处的。Itisawasteoftimedoingsth.做某事是浪费时间的。Itisworthdoingsth.做某事是有价值的。Itisworthwhiledoingsth.做某事是有价值的。[即时演练]——单句语法填空1.Itisnouse______________(manage)toconvince

himnow;hehasalreadymadeuphismind.2.It'sawasteoftime

(persuade)himtojoinus.3.It'sfun______________(play)withyou,butIhavetogonow.4.It’sworthwhile______________(try)thisnewmethod.managingplayingtryingpersuadingRewriteeachofthefollowingsentencesusingthe-ingformasthesubject.Howdoesthesentencefocuschange?ItischallengingyetreallyfascinatingtohikethroughthemountainsinthepathlessSarek.HikingthroughthemountainsinthepathlessSarek

ischallengingyetreallyfascinating.Activity2Observeanddiscover1.Itisbothchallengingandrewardingtostudyabroad.Studyingabroadisbothchallengingandrewarding.GoingonahikingtourinSarekinwinterwouldhardlybepossibleduetotheextremecold.2.ItwouldhardlybepossibletogoonahikingtourinSarekinwinterduetotheextremecold.3.Honestly,itcanbebothexcitingandterrifyingtoexploreavastunknownland.Honestly,exploringavastunknownlandcanbebothexcitingandterrifying.Activity24.Itisgoodtoadoptapositiveattitude,evenwhenthingsaredifficult.Adoptingapositiveattitude

isgood,evenwhenthingsaredifficult.5.Itisstronglyadvisedtohirelocalguides,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.Hiringlocalguidesisstronglyadvised,becausetheycanofferaccurateknowledgeofSarekcultureandhistory.Theuseof-ingformsassubjectputstheactionfirst,makingthesentencesseemmoredynamic.P29Ex.2

Activity3.动词-ing的复合结构作主语名词的复合结构做主语动名词的复合结构做主语coming

当动名词有自己的逻辑主语时，常可以在v-ing前面加上一个名词________或_______________代词作逻辑主语构成动名词的复合结构。所有格形容词性物主【练一练】(1)____________________madehisteacherveryangry.

他又一次迟到使他的老师非常生气。(2)

isagreathelptohisfamily.

麦克回来工作对他全家来说都是一大帮助。HisbeinglateagainMike’sreturningtoworkTheir____________(come)tohelpwasagreatencouragementtous.他们过来帮忙(这件事)对我们来说是莫大的鼓舞。动名词和todo都可以作主语。_________作主语表示比较抽象的、经常性行为，__________作主语往往表示具体的或一次性的动作,特别是将来的行为。

动名词

不定式Activity4

动词-ing形式和不定式作主语时的区别

Deliveringnewspapersishisjob.送报纸是他的工作。

Todelivernewspapersishisjobtoday.送报纸是他今天的工作。_________(take)awalkaftersupperthiseveningisagoodidea.(2019天津)___________(learn)tothinkcriticallyisanimportantskilltoday'schildrenwillneedforthefuture.TotakeLearning动词-ing形式作主语表示经常性或习惯性的动作且常放句首形容词性物主代词+动词-ing名词所有格+动词-ing动词-ing作主语动词-ing的复合结构It’sawastetimedoingsthIt’suseless/nouse/nogooddoingsthIt’snofundoingsthit作形式主语动词原形+-ing基本构成基本用法动词-ing与动词不定式作主语的区别Summary小结一、用所给动词的适当形式填空。1.

(wander)aroundthethemeparkisagreatwaytorelax.2.Hisnot

(know)Englishbroughthimalotofinconvenience.3.Climbingmountains

(be)reallyfun.【巩固练习】Wanderingknowingis4.Itisnouse

(write)tohim;heneveranswersletters.5.(2019·全国卷Ⅱ)

(volunteer)justfeelssogood.6.(2024·全国甲卷)

（eat）alone,especiallyinfrontoftheTVorcomputer,oftenleadstomindlessovereating.writingVolunteeringEating二、完成句子。1.阅读是扩大你的词汇量的一个好方法。

isagoodwaytoenlargeyourvocabulary.2.沉迷手机是浪费时间的。

is

awasteoftime.3.参加这个活动是值得的。

isworthwhile.

ReadingBeingaddictedtosmartphones

Takingpartinthisactivity5.(2018·北京高考)沿着古老的“丝绸之路”旅行是一次有趣、有意义的经历。

isaninterestingandrewardingexperience.

TravelingalongtheoldSilkRoad4.饭后散步是一个很好的习惯。

isaverygoodhabit.WalkingafteramealPPT模板http://www.xxx/moban/

XixiNationalWetlandPark(西溪国家湿地公园),________10squarekilometresinwesternHangzhou,isthefirstnationalwetlandparkinChina.__________citylife,nature,andwetlandsmakestheparkapopulardestinationbothfortouristsandlocalresidents.AtXixi,______aboattour,________alongpaths,and___________local