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英语句子的种类简单句(simplesentence)并列句(compoundsentence)复合句(complexsentence)英语句子概论简单句的五种基本句型Theweatherisverycold.主语+谓语（连系动词）+表语Helaughed.主语+谓语（vi.）IlikeChinesefood.主语+谓语(vt.)+宾语Shetaughtthemphysics.主语+谓语(vt.)+间接宾语+直接宾语Wemustkeeptheroomwarm.主语+谓语(vt.)+宾语+宾语补足语并列句把两个或几个简单句用并列连词连接起来。IturnedontheTV.MysisterandIwatchedit.IturnedontheTVandmysisterandIwatchedit.Iboughtmysisterapresent.Shedidn’tlikeit.Iboughtmysisterapresent,butshedidn’tlikeit.并列句并列句常用并列连词:•平行并列连词:•转折并列连词：•因果并列连词:•选择并列连词:and,both…and,notonly…butalso,neither…norbut,however,while,yet,or,either…orfor,so复合句:主句+从句名词性从句定语从句状语从句1.TheboywhoisstandingoverthereisTom2.Becauseitisraining,wehavetostayathome定语从句状语从句3.Iknow(that)heisfromAmerica(宾语从句）名词性从句---NounClauses(名词性从句)SubjectClause(主语从句)AppositiveClause（同位语从句）ObjectClause（宾语从句）PredicativeClause（表语从句）名词性从句在功能上相当于名词,在复合句中能担任主语、宾语、表语、同位语等。主语{Hisjobisimportant.Whathedoesisimportant.表语Thisishisjob.Thisiswhathedoeseveryday.{宾语Idon’tlikehisjob.Idon’tlikewhathedoeseveryday.同位语Idon’tknowabouttheman,Mr.White.Idon’tknowaboutthefactthatheisateacher.Whowillwinthematchisstillunknown.Iwanttoknowwhathehastoldyou.Thefactisthatwehavelostthegame.Thenewsthatwewonthegameisexciting.主语从句宾语从句表语从句名词性从句的作用相当于名词，因此主语从句、表语从句、宾语从句和同位语从句分别作主句的主语、表语、宾语和同位语。同位语从句宾语从句的定义置于动词、介词等词性后面起宾语作用的从句叫宾语从句。宾语从句的语序必须是陈述语序。谓语动词、介词、动词不定式，v.-ing形式后面都能带宾语从句。有些形容词（afraid,sure,glad等）之后也可以带宾语从句。宾语从句中引导词的用法在复合句中作主句的宾语，引导词有：从属连词：that(that常可省略),whether,if连接代词：who,whose,what,which，whom,whatever,whoever等连接副词：when,where,how,why等。1.Iknowhim.2.Iknowwhoheis.主语谓语宾语（简单句）主语谓语宾语从句连词从句主语从句谓语主句（复合句）宾语从句的概念：宾语从句在复合句中作主句的宾语。句子结构：主句+连词（引导词）+宾语从句1）主句的谓语动词可以是及物动词：2）如果主句的谓语动词是一个带有介词的词组，那么后接的从句做介词宾语从句。3）有些形容词后也可以带有宾语从句。I’mafraid(that)hewon’tpasstheexam.Hewonderedifhecouldpasstheexam.Theyaretalkingaboutwhethertheycanpasstheexam.注意：动词+副词形成的谓语动词词组后也可以带宾语从句。一、从属连词1.当宾语从句是陈述句时（包括肯定句和否定句），连词由that引导，因为that在从句中不作任何成分，也没有任何具体意思，因此在口语或非正式文体中常省略LinTaoknows(that)hisownteamisevenbetter.（肯）Shesays(that)shewon’ttakepartinthesportsmeetingnextSunday.（否）Jimthought(that)thetrainwaslikeabigmovingparty.Hesaid(that)hewouldliketoseetheheadmaster.引导词种类2.当宾语从句是一般疑问句时，由连词whether或if引导（口语中常用if），因为if/whether翻译成：“是否”，具有一定的意义，所以不能省略Lilywantedtoknowif/whetherhergrandmalikedthehandbag.Let’sseeif/whetherwecanfindoutsomeinformationaboutthatcity.Italldependsonwhethershelikesthebossornot.引导词种类二、连接代词which,what,whose,who,whom,whatever,whoever,whomever,whichever；连接代词在从句中作主语、宾语、表语、定语。Iwonderwhowillteachus.Mr.Wangaskedwhosebookthatwas.Youcantakewhateveryoulike.引导词种类三、连接副词where,when,why,how等连接副词在句中作状语。Hedidn’ttellmewhenweshouldmeetagain.Couldyoupleasetellmehowyouusethenewpanel?Noneofusknowswherethesenewpartscanbebought.引导词种类带how的词组也都可以引导宾语从句Couldyoutellushowoftenyougoabroadforaholiday?Couldyoutellushowlongthemeetingwilllast?Idon’tknowhowfaritistothecinema.Pleasetellushowmanystudentsthereareinyourschool?Canyoutellushowoldhisbrotheris?Pleasetellushowsoonyouwillbeready.CouldyoutellushowmuchitcoststoflytoHainan?二、时态1.如果主句是现在的时态（包括一般现在时，现在进行时，现在完成时），从句的时态可根据实际情况而定，（包括一般现在时，一般过去时，一般将来时，现在完成时等）Iknowheliveshere.Iknowhelivedheretenyearsago.Ihaveheardthathewillcometomorrow.2.如果主句是过去的时态（包括一般过去时，过去进行时），那么从句的时态一定要用相对应的过去的某种时态（包括一般过去时，过去进行时，过去将来时，过去完成时）Iknewwholivedhere.Itoldmethatshewastalkingwithhermotheratthattimelastweek.Heaskedwhetherhisfatherwouldcomebackthenextday.Hesaidthathehadseenitbefore.3.当从句是客观真理，定义，公理，定理时用一般现在时。Theteachersaidthattheearthtravelsaroundthesun.Theteachersaidthattheworldismadeupofmatter.三、语序宾语从句的语序用陈述语序：连接词+主语+谓语+其他成分1.Whenwillhegotothelibrary?Hisbrotheraskswhenhewillgotothelibrary.Hisbrotheraskswhenwillhegotothelibrary.2.Whatdoeshewanttobuy?Idon’tknowwhathewantstobuy.Idon’tknowwhatdoeshewanttobuy.3.Whoarewegoingtomeet?Canyoutellmewhowearegoingtomeet?Canyoutellmewhoarewegoingtomeet?4.DoesheknowFrench?Wewanttoknowif/whetherheknowsFrench.Wewanttoknowif/whetherdoesheknowFrench.5.WilltheygotoCanadainsummer?They’renotsureif/whethertheywillgotoCanadainsummer.They’renotsureif/whetherwilltheygotoCanadainsummer.1．could/would是委婉语气，而不是过去式，因此宾语从句的时态根据实际情况用不同时态。注意事项Couldyoupleasetellmewhereweshowourtickets?Couldyoutelluswhichgatewehavetogoto?Wouldyouliketoknowwhenhewillcomeback?2.如果主句的谓语动词是ask时，连词不可能是that；如果主句的谓语动词是say时，连词用thatShesays(that)shewillleaveamessageonhisdesk.Hesaid(that)hewasgoingtotakecareofthechild.HeasksifIlikeplayingthepiano.Youmayaskthemanovertherehowyoucangettothebusstation.3.当doubt,doubtful用于肯定句时，后面的名词性从句连接词常用whether或if;当doubt,doubtful用于否定句时，后面的名词性从句的连接词用that。Idoubtif/whetherheisathome.Wedon’tdoubtthattheycancompletethetaskaheadoftime.4.当besure引导主句是肯定句时，后面的名词性从句的连接词常用that;当besure引导的主句是否定句时，后面的名词性从句的连接词常用whether或if。Wearesurethathewillbesuccessfulsoon.Theoldmandidn’tseemtobesurewhether/ifhehadmetme.5.介词后宾语从句的注意事项：①一般情况下介词后只能用wh-类连接词引导的宾语从句。Iamsurprisedatwhathesaid.②介词后如果接that从句，要先加上it,再加that从句，即“介词+it+that…”结构。Youmaydependonitthattheywillsupportyou.(that不能省略)③介词except,but,besides及in后可接that从句。Iknownothingabouthimexceptthatheliveshere.(that不能省略)7.只能使用whether而不能使用if的几种情况：①介词后宾语从句用w