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复合句由主句和从句构成，通过引导词来连接主句跟从句。从句作什么成分就叫什么从句。从句在复合句中作宾语的句子叫宾语从句。1.“Itissunnytoday”.Tomsays.Tomsaysthatitissunnytoday.2.“Isitsunnytoady?”Tomasks.Tomasksifsunnytoday.weather3.“What'stheweatherliketoday?”Tomasks.Tomaskswhatliketoday.itistheweatheris1.“Theclassbeginsateight”.Tinasays.2.“Doestheclassbeginateight?”Tinaasks.3.“Whendoestheclassbegin?”Tinaasks.Tinasaysthattheclassbeginsateight.Tinaasksiftheclassbeginsateight.Tinaaskswhentheclassbegins.Tomwonderswhattheweatherisliketoday?Tomwonderswhattheweatherwaslikeyesterday?Tomwonderswhattheweatherwillbeliketomorrow?主句为一般现在时，从句可以根据表达需要用任意的时态。3.Hewondersif/whetherTomwillgotoBeijingtomorrow.Hewonderedif/whetherTomgotoBeijingtomorrow.would2.Arethechildrenplayinggames?Iwantedtoknow.Iwantedtoknowif/whetherthechildrenwereplayinggames.1.Iwantedtoknow.Whereisthenearestpostoffice.Iwantedtoknowwherethenearestpostofficewas.主句为一般过去时，从句要用过去的某种时态。Hesaidthatlightfasterthansound.travels当主句的谓语是过去时，但从句如果是客观真理或客观事实时，用一般现在时不变。常用的几个真理：Theearthtravelsaroundthesun.地球绕着太阳转。Thesunrisesintheeast.太阳从东边升起。Lighttravelsfasterthansound.光的速度比声音的快。宾语从句总结含义：一个句子充当宾语that:无实意(原句是陈述句)if/whether:是否(原句是一般疑问句)特殊疑问词(原句是特殊疑问句)语序：陈述句语序1.主句一般现在时从句任意时态2.主句一般过去时从句过去时态3.宾语从句表示客观事实用一般过去时，不受主句时态影响。宾语从句引导词时态1.Iwanttoknow.A.whenweshouldarrivethereB.whenshouldwearrivethereC.whenwillwearrivethereD.whendidwearrive2.Ourteachersaidtheearth(go)aroundthesun.3.Shetoldusshe(notwatch)TVonweekends.4.Weallknewthey(can)playthepianowell.5.Shesaidshe(watch)TVat5o’clockyesterday.1.Theydidn’tthinkthereasnakeintheroom.A.beB.wasC.hasD.had2.–Excuseme,couldyoutellmeforTaiwan?Thedayaftertomorrow.A.whendidyouleaveB.whenyouareleavingC.whenareyouleaving3.Iaskedyouwhere___go.A.wewillB.willweC.wewouldD.wouldwe4.Ourphysicsteacherasked.A.ifiseveryonehereB.ifeveryoneishereC.ifeveryonewashereD.ifwaseveryonehere5.–Doyouknowthemanunderthetree?–Idon’tknow.A.howisheB.whatisheC.whoheis6.Theteachersaidshe(take)ustotheparkthenextday.7.Tom’sfathersaidthey(go)onavacationnextweek.•一．把原来的两个简单句合并为一个包含宾语从句的复合句时要注意：•当原句句是陈述句时，引导词是that,可省略无意义；当原句是一般疑问句时,引导词为if或whether，不可省，是“是否”的意思；当原句是特殊疑问句时，引导词是特殊疑问词，不可省，意思即疑问词本身的意思。•二．if有两个意思，一个是“是否”，一个是“如果”。当if在want,know,wonder,tell,ask等实意动词后面时意思是“是否”，这时if是一个宾语从句的引导词，if后面的宾语从句要根据时间状语或语境选择时态；当if放在句首时，意思是“如果”，这时if引导的是条件状语从句，后面的从句用一般现在时。•三.含有宾从的符合句转换成简单句，使用“动词+疑问词+todo”结构。例如：•Shewantedtoknowhowtheywouldgothere.•Shewantedtoknowthere.四.宾语从句的引导词if和whether通常可以互换，但以下情况只能用whether,不能用if:1.在介词后面。如：I'mthinkingofwhetherweshouldgotoseethefilm.2.与ornot连用时。Ican'tsaywhetherornottheycancomeontime.3.和动词不定式连用时。Idon'tknowwhehtertoseemydoctortoday.五.陈述语序：当从句是陈述句时，语序不变；当从句是一般疑问句或特殊疑问句时，要把原来的疑问语序变为陈述语序（do类助动词的先去掉，然后将动词变为跟助动词一致的形式；其他类助动词跟主语交换位置。）六.宾语从句的时态（1）主句的谓语动词为一般现在时时，从句的谓语动词根据时间状语或实际语境选择任意时态；如：Iknowthathelivedheretendaysago.Iknowthathewillliveheretomorrow.IknowhehasbeentoBeijingbefore.（2）当主句的谓语时态是过去时时，从句谓语要变为相应的过去时.如：Theteachertoldustheywouldgotothemoviesthisevening.(3)从句时态不受主句的限制：当主句的谓语是过去时，但从句如果是客观真理或客观事实时，用一般现在时不变。常用的几个真理：Theearthtravelsaroundthesun.地球绕着太阳转。Thesunrisesintheeast.太阳从东边升起。Lighttravelsfasterthansound.光的速度比声音的快。七.感叹句是表示惊奇,惊讶等强烈情感的句子，句末用感叹号，引导词有what，how.What的三种句式：1.What+a/an+形容词+可数名词单数+主语+谓语！如：Whataninterestingstoryitis!2.What+形容词+可数名词复数+主语+谓语！如：Whatgoodbookstheyare!3.What+形容词+不可数名词+主语+谓语！如：Whatbadweatheritis!How的两种句式：1.How+形容词/副词+主语+谓语！如：Howcleversheis!Howheavilyitisraining!2.How+形容词+a/an+可数名词单数+主语+谓语！如：Howinterestingastoryitis!(=Whataninterestingstoryitis!)1.______badnewsitwas!A.WhataB.HowaC.WhatD.How2.DidyouwatchthisTVshow?Yes.___interestingitwas!A.HowB.WhatC.Whata3.Look!_____tallbuildingstheyare!A.WhatB.HowC.HowaD.Whata4.TheyaretakingpartintheOlympic.____excitingevent!A.HowaB.WhatanC.Howan5.___goodadvice!It'ssohelpfultous.A.HowB.WhatC.Whata6.____hardMr.Smithisworkingintheoffice!A.HowB.WhatC.WhataD.Howan