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subjectGrammarReviewthesubject主语是一个句子的主题，是句子所诉说的主体。它的位置一般在句首,谓语的前面。可以用做主语的有单词、短语、甚至句子。什么词性可以充当主语？主语名词代词数词动词不定式动名词The+adj、/p.p.主语从句其他Atreehasfallenacrossthestreet.Thehonorablepresidentisarriving.Cindylikesthatpairoftrousersalot.Youareamiddleschoolstudent.Helentmehisnewbike.1.名词作主语。2.代词作主语。Theyliveonabusymainroad.______mustbeverynoisy.A.ThereB.ItC.ThatD.TheyB_________comesfromGermanybutshecouldn’tspeakGerman.A.WeB.AlexC.TheyD.MaryDThreeisenough.Fiveandelevenequalssixteen.Twelvetimesthreemakesthirty-six.Thirteenminusnineisfour.Fifteendividedbythreeequalsfive.＋and/plus－minus×times÷dividedby=is/equals/makes3.数词作主语。Tofindthetruthisverydifficult.Togetgoodgradesiseasyforme.Toloveandtobelovedisthegreatesthappinessintheworld.Tohesitatemeansfailure.（1）动词不定式作主语视为单数，谓语用单数形式4.动词不定式作主语。（2）动词不定式做主语过长，为了避免头重脚轻，用it代词做形式主语，真正的主语动词不定式后置•Tofindthetruthisverydifficult.•Itisverydifficulttofindthetruth.•Togetgoodgradesiseasyforme.•Itiseasyformetogetgoodgrades.•Toloveandtobelovedisthegreatesthappinessintheworld.•Itisthegreatesthappinessintheworldtoloveandtobeloved.•Tohesitatemeansfailure.•Itmeansfailuretohesitate.Smokingisbadforyourhealth.Seeingisbelieving.（眼见为实。）Doinglotsofexerciseisgoodforhealth.Savingmoneyisagoodhabit.5.动名词作主语只有出现下面这三种句型时，才可以用it代替动名词做形式主语Itisnogoodnouseawasteoftimedoingsth++Itisnousereadingsofast.读那么快没用。Itisawasteoftimeregrettingforthepast.为过去而悔恨是浪费时间。Itisnogoodspendingsomuchmoney.花那么多钱不好。Itisnogoodhopingforothers’help.期许别人的帮助无益。Therichshouldhelpthepoor.Theoldandtheyoungwalkedsidebyside.Thedisabledareunlucky.Thewoundedneedourhelp.6.The+adj./p.p.作主语。名词化的过去分词短语the+P.P.thedisabled残疾人thewounded伤者The+adj.名词化的形容词短语theblind瞎子thedeaf聋子thedead死者theliving活着的人thepoor穷人thedumb哑人7.句子做主语构成主语从句Wheneveryoucomewillbefine.Thattheoldneedhelpisnotdoubtful.ThatheisfromBeijingisknowntous.Whathewantsismymoney.Whattheyaresellingareuselessthings.Whenweshallstartisalreadydecided.HowyouwillgotoBeijinghasn’tbeendecidedyet.句子做主语太长，为了避免头重脚轻，用it做形式主语，真正的主语后置。What引导的主语从句除外。Wheneveryoucomewillbefine.Itwillbefinewheneveryoucome.Thattheoldneedhelpisnotdoubtful.Itisnotdoubtfulthattheoldneedhelp.ThatheisfromBeijingisknowntous.ItisknowntousthatheisfromBeijing.Whathewantedismymoney.ToBeijingisnotveryfar.Theupsanddownsmayhappentoeveryone.8.介词短语或者名词化的介词作主语。9.引语作主语。“Howdoyoudo?”isagreetingwhenpeoplemeetforthefirsttime.10.副词充当主语Nowisthetime.2.Thewoundedtakenfromthefrontneedimmediatetreatmentinthefieldhospital.3.Tomasteraforeignlanguagecallsforagreatdealofmemorywork.从前线送来的伤员需要在战地医院迅速接受治疗。掌握一门外语需要大量的记忆。The+adjinfinitive不定式1.Self-cofidenceisthekeytosuccess.自信是成功的关键。noun名词Exercise:6.2012istheyearwhenthe30thOlympicGameswillbeheldinLondon.第30届奥运会将于2012年在伦敦举行。5.WhetherJennywillpasstheinterviewdependsonherconfidenceinherself.詹妮是否能通过面试取决于她有没有信心。4.Takingexerciseearlyinthemorninghasbecomepartofherretiredlife.早晨进行体育锻炼成为她退休生活的一部分。sentencenumbergerund动名词•1.Theisjustaroundthecornerandyouwon’tmissit.A.bicycle’sshopB.bicycleshopC.bicyclesshopD.bicycleshop’s•2．Justafterfinishingwritingthecomposition,_____.A.thedoorbellrangloudB.NancyheardthedoorbellrangC.someoneknockedatthedoorD.thedoorbellwasrung3．WhilewatchingTV,_______.A.theboycameinB.mymotherwascookingC.IheardaterriblenoiseD.thedoorbellrang4.Thereare73studentsinourclass.Someareboys.aregirls.A.TheotherB.TheothersC.AnotherD.Other•5．YouandIofthesameage.A.amB.areC.beD.is•6.There_____onlyanothertwomilestogo.（时间距离长度重量作整体看）•A.isB.areC.hasD.have分析句子结构、成分并指出做主语的词性1.Drinkingmilkisgoodforyourhealth.2.Eatingtoomuchmaymakeyoufat.3.Readinginthesunisbadforyoureyes.4.Walkingisgoodexercise.5.Goingtoschoolbybususuallytakesme10minutes.1.WeoftenspeakEnglishinclass.2.One-thirdofthestudentsinthisclassaregirls.3.Toswimintheriverisagreatpleasure.4.Smokingdoesharmtohealth.5.Therichshouldhelpthepoor.notbeendecided.1.Itisstrangethatshelostthegame.2.Itisnaturalthatstudentsshouldgetupearly.3.Itisapitythatyoumissedthemeeting.4.Swimmingisinteresting.5.Whatweneedaregooddoctors.1.Itisnecessarytomasteraforeignerlanguage.2.WhenwearegoingtohaveanEnglishtesthasbeendecided.3.Howtomakeourlifelongerisabigproblem.4.Whentoleaveremainsaquestion.改错1.Iandmybrotherwenttoseeafilmyesterday.2.Takeataxiisveryeasyinourcitynow.3.Attendthemeetinginveryimportant.4.Thatisusefulforstudentstoreadalot.5.PooriscommoninruralChina.