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主系表结构7.15主语+系动词+表语SubjectLinkverbPredicative一.主语Thechairisgreen.名词HeisfromEngland.Playingthecomputerismyhobby.Whatshesaidisright.代词动名词从句△名词主要由、、或充当。名词代词动名词从句二.系动词①状态、属性类动词be（am、is、are）/was、were他是一名教师。Heisateacher.他生病了。Heisill.他习惯自己一个人待着。beusedtodoingstayHeisusedtostayingalone.②持续类动词keep、remain、stay继续是，仍然是我们仍然可以做朋友。Wecanremainfriends.我们要保持身体较康。Weshouldkeephealthy.门仍然是关着的。Thedoorremainsclosed.他保持沉默。Hekeeps/staysslient.slient△keep、stay都可以表示，但如果表示身体健康方面的，只能用。保持keep③表“像”系动词appear、seemappear、seem+形容词你似乎很累。Youseemtired.她好像身体很好。Sheappearswell.他好像很开心。Heappearshappy.todo他似乎喜欢这个。Heseemstolikeit.她看起来像是一个二十岁的女孩。Sheseemstobea20-year-oldgirl.that+从句Itseems/appearsthat+从句好像他犯了一个错误。Itseemedthathemadeamistake.=Heseemedtomakeamistake.他好像在自言自语。Itseemsthatheistalkingtohimself.=Heseemstobetalkingtohimself.※①seem、appear是除了be动词外唯一可以直接加not表示否定的系动词。Hedoes'tseemtobeherfather.=Heseemsnottobeherfather.Thebabydoesn'tappeartobeaweak.=Thebabyappearsnottobeaweak.②seem、appear常与there连用。那里好像只有一个房间。Thereseemstobeonlyoneroom.这里好像有一些水。Thereappearstobesomewater.那里好像明天有一场聚会。Thereseemstobeapartytommrow.④表示感官类的动词：……起来（是）看起来look听起来sound闻起来smell尝起来taste摸起来；感觉起来feel这听起来是一个好主意。Itsoundsagoodidea.这闻起来很不错。Itsmellsnice.冰摸起来是冷的。Icefeelscold.这个菜尝起来很美味。Thisfoodtastesdelicious.那个看起来不一样。Thatlooksdifferent.每个人感觉很开心。Everyonefeelshappy.※look，smell，sound，feel，taste能接asif/asthough+表语从句表示好像看起来天好像要下雨了。Itlooksasifitisgoingtorain.这听起来有重要的事情发生。Itsoundsasifsomethingimportantwillhappen.感觉现在是春天了。ItfeelsasifitisSpringnow.⑤变化类的系动词become,go,turn,grow,get,comebecome后面一般接一种职业、身份；比较级+and+比较级变成一个老师becomeateacher变得越来越好becomebetterandbettergo多接形容词，一般指的是由好变到坏turn多和颜色搭配；当接的是名词，名词前面不用冠词变绿turngreen变成作家turnwritergrow一般多与生长有关come多指由坏变到好get多指一种渐变的过程，比较级+and+比较级的结构become,go,turn,grow,get,come1.Wrongneverright.2.Fishsoonbadinhotwater.3.IwasinterestedinmusicwhenIold.4.Mydreamistoadoctor.5.LeavesalwaysyellowinAutumn.6.Itisdarkeranddarker.comegoesgrewbecometurngetting⑥终止类系动词prove被证实是这句话被证实是假的。Thissentenceprovesfalse.turnout最后……，终于……证实他是对的。Heprovesright.他最后终于成功了。Heturnedoutsuccessful.三.表语Youlookfriendly.Heisaboy.Fiveplustwoisseven.Theyareintheclassroom.Myhobbyisreadingbooks.形容词名词数词地点介词动名词Hisjobistolookafterthechildren.Thequestioniswhatyouwanttodo.动词不定式表语从句※当表语是happy、willing、sorry等表示主语的心情的形容词时，后面通常加todo，译为做……是……的，很……去……。我很开心遇到到你。Iamhappytomeetyou.听到这个消息，我很抱歉。Iamsorrytohearthat.我很愿意帮你。Iamwillingtohelpyou.有这种父母，我感到很幸运。Ifeelluckytohavethiskindofparent.主系表结构主语名词代词动名词主语从句系动词属性类延续类表“像”感官类变化类终止类bekeep,remain,stayseem,appearloook,sound,smell,taste,feelbecome,go,turn,grow,come,getprove,turnout表语名词形容词地点介词数词动名词不定式表语从句1.WhatMrWhitesaidsounds____.A.friendlyB.wonderfullyC.pleasantlyD.nicely2.Thepoorboy____blindattheageofthree.A.turnedB.goesC.becameD.went3.Hisvoice____asifhehasacold.A.soundsB.listensC.hearsD.seems4.It____thathewaslateforthetrain.A.looksB.turnsC.getsD.seems5.Theseapplestaste_____.A.tohegoodB.tobewellC.wellD.good6.WhenIwenthomeyesterday,itwas____dark.A.goingB.gettingC.runningD.coming