练习题

　　I.填入适当的引导词

　　1.Ihaven'theardfromhim_____hewenttoAmerica.

　　2.Hewon'tbehere_____heisinvited.

　　3.Hewillnotgotothecinema_____heisverybusy.

　　4.Wefoundthekey_____sheladleftit.

　　5.Wefoundthebookstwodays____hehadgoneaway.

　　6.Wehadnosoonergottothestation_____thetrainleft.

　　7.HespeaksEnglish______hewereanEnglishman.

　　8.Heisexplainingclearly_______theycouldunderstand.

　　9.Donotleavetheroom_____youhavefinishedthetest.

　　10.Shesang______shewentalong.

　　答案：1.since2.unless3.because4.where5.after6.than7.asif8.sothat9.before10.as

　　II.改错

　　1.Thechildrenwererunningontheplaygroundasfastastheycan.

　　2.Sinceherhusbandhaddied,soshehadtosupportherfamily.

　　3.Hewon'tgooutuntilhismotherwillcome.

　　4.Hewasveryfoolishthathedidn'tpasssuchaneasyexam.

　　5.Tomhadgoneoutassoonashismothergothome.

　　6.Itwasthreemonthssincehecametoourschool.

　　7.Theplaygroundofourschoolislargerthantheirschool.

　　8.ThestreetsinNanjingarewiderthanShanghai.

　　9.Whateverthereisplentyofsunandrain,thefieldsaregreen.

　　10.Shesingssongsasifsheisabird.

　　答案：1.can改为could2.去掉so3.willcome改为comes4.very改为so5.assoonas改为when6.was改为is7.than之后加上thatof8.than后加thosein9.whatever改为wherever10.is改为were

　　III.找出从句并指出是那类从句

　　1.Itdependsonwhetherwehaveenoughtime.

　　2.Thequestionheaskedwaswheretheelectricalequipmentshouldbestored.

　　3.Themountainisnolongerwhatitusedtobe.

　　4.Thefactthatsheworkshardiswellknowntousall.

　　5.Hewasnotthemanthathewasbefore.

　　6.Nowyouwasfree,whynotgoswimmingwithus

　　7.Wherethereareschoolsandcolleges,thereareexaminations.

　　8.Badhabits,oncefirmed,aredifficulttogiveup.

　　9.Sheoftenwearsthesamekindofskirtashertwinsisterdoes.

　　10.Themomentheopenedthewindow,abirdflewin.

　　答案：

　　1.whetherwehaveenoughtime介词宾语从句

　　2.heasked定语从句wheretheelectricalequipmentshouldbestored表语从句

　　3.whatitusedtobe表语从句

　　4.thatsheworkshard同位语从句

　　5.thathewasbefore定语从句

　　6.Nowyouwasfree让步状语从句now=nowthat

　　7.Wherethereareschoolsandcolleges地点状语从句

　　8.oncefirmed时间状语从句

　　9.ashertwinsisterdoes定语从句

　　10.Themomentheopenedthewindow时间状语从句

　　IV.填入适当的引导词完成句子

　　1.____willdotheexperimentcomestotheprofessor'soffice.

　　2.___willdotheexperimenthasn'tbeendecided.

　　3.Theteacherdidn'tleave______twelveo'clock.

　　4.______thedaywenton,theweathergotworse.

　　5._____sheisyoung,sheknowsquitealot.

　　6.Itworriedherabit____herhairwasturninggrey.

　　7.Youwillbelate____youleaveimmediately.

　　8.Goandgetyourcoat.It's______youleftit.

　　9.______ismentionedabove,thenumberofthestudentsinseniorhighschoolsisincreasing.

　　10.____hadIenteredtheroom____thephonerang.

　　答案：1.Whoever2.Who3.until4.As5.Although6.that7.unless8.where9.As10Hardly,when(Nosooner,th