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1、宾语从句（一）宾语从句的种类宾语从句是一种名词性从句，在句中作及物动词的宾语，或介词的宾语，或形容词的宾语。根据引导宾语从句的不同连词，宾语从句可分为三类。1.由that引导的宾语从句2.由if或whether引导的宾语从句3.由连接代词who,whom,whose,what,which和连接副词when,where,why,how引导的宾语从句。1.由that引导的宾语从句。that只有语法作用，没有实在的意义，在口语和非正式文体中可以省略。例如：Hesaid(that)hewantedtostayathome.Shedoesn’tknow(that)sheisseriou
2、slyill.Iamsure(that)hewillsucceed.2.由if或whether引导的宾语从句。if和whether在句中的意思是“是否”,在句子中不作句子成分。例如：Iwanttoknowif(whether)helivesthere.Heaskedmewhether(if)Icouldhelphim.3.由连接代词who,whom,whose,what,which和连接副词when,where,why,how引导的宾语从句。这些连接代词和连接副词在宾语从句中充当某个成分。例如：Heaskedwhosehandwritingwasthebest.Couldyo
3、utellmewheretheNo.3busstopis?Idon’tknowwhythetrainislate.（二）宾语从句的语序宾语从句的语序应为陈述句的语序。例如：Ithink(that)youwilllikethisschoolsoon.CanyoutellmehowIcangettothezoo?Pleasetellmewhenwe’llhavethemeeting.口诀:先找疑问后找主,时态语态看清楚,委婉语气也不错，从句时态跟着主。（三）宾语从句的时态1.如果主句的时态是一般现在时，宾语从句该用什么时态就用什么时态。如：Idon’tknowifhewentth
4、ereyesterday.CanyoutellmehowIcangettotherailwaystation?Doyouthinkhewillcometomorrow?Ithinkthathehasalreadygonetobed.2.如果主句的时态是一般过去时，宾语从句只能用相应的过去时态（一般过去时，过去进行时，过去将来时，过去完成时）。例如：Heaskedwhattimeitwas.Hetoldmethathewaspreparingforthesportsmeeting.HeaskedifyouwouldwritetoPeter.3.如果宾语从句所陈述的是客观真理，其
5、时态常用一般现在时。例如：OurteachersaidthatJanuaryisthefirstmonthoftheyear.Scientistshaveprovedthattheearthturnsaroundthesun.口诀：主为现将从不限，主过从过对应变，从句若是表真理，一般现在代过去。类型一：引导词的运用1Idon’tknow___________ornot.A.whetherheisathomeB.ifheisathomeC.thatheisathomeD.whetherisheathome2Thisdependson_________theweatherisfi
6、ne.A.whichB.whetherC.ifD.that3Theteacheraskedthenewstudent________classhewasin.A.whichB.whereC.ifD.thatABA4Idon’tknow________Mr.Greenwillcometoseeus.He’llhelpuswithourEnglish.A.whyB.whenC.howD.where5Becareful!Don’tbreakthebottles.Doyouhear______Isaid?David?Yes,MumA.whatB.thatC.whyD.if6Doyou
7、know_______Mr.Black’saddressis?HemayliveatNO.18orNo.19ofBridgeStreet.I’mnotsureof______.A. where,whichB.where,whatC.what,whichD.what,whereBAC7Thereisnotmuchdifferencebetweenthetwo.Ireallydon’tknow_____.A.whatshouldIchooseB.whichIshouldchooseC.whichshould
