主语讲解及练习

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？Atreehasfallenacrossthestreet.Thehonorablepresidentisarriving.Cindylikesthatpairoftrousersalot.

Youareamiddleschoolstudent.He

lentmehisnewbike.名词作主语。2.代词作主语。Theyliveonabusymainroad.______mustbeverynoisy.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，为了防止头重脚轻，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，为了防止头重脚轻，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局部。sentencenumbergerund动名词1.The

isjustaroundthecornerandyouwon’tmissit.

A.bicycle’sshop

B.bicycleshopC.bicyclesshop

D.bicycleshop’s2．Justafterfinishingwritingthecomposition,_____.

A.thedoorbellrangloud

B.Nancyheardthedoorbellrang

C.someoneknockedatthedoor

D.thedoorbellwasrung3．WhilewatchingTV,_______.

A.theboycamein

B.mymotherwascooking

C.Iheardaterriblenoise

D.thedoorbellrang4.Thereare73studentsinourclass.Someareboys.

aregirls.TheotherB.TheothersC.AnotherD.Other5．YouandIofthesameage.

A.amB.areC.beD.is6.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Drinkingmilkisgoodforyourhealth.Eatingtoomuchmaymakeyoufat.

Readinginthesunisbadforyoureyes.

Walkingisgoodexercise.

Goingtoschoolbybususuallytakesme10minutes.WeoftenspeakEnglishinclass.2.One-thirdofthestudentsinthisclassaregirls.3.Toswimintheriverisagreatpleasure.4.Smokingdoesharmtohealth.5.Therichshouldhelpthepoor.notbeendecided.Itisstrangethatshelostthegame.2.Itisnaturalthatstudentsshouldgetupearly.3.Itisapitythatyoumissedthemeeting.4.Swimmingisinteresting.5.Whatweneedaregooddoctors.1.Itisnecessarytomasteraforeignerlanguage.2.WhenwearegoingtohaveanEnglishtesthasbeendecided.3.Howtomakeourlifelongerisab