preposition+which（指物(zhǐwù)）preposition+whom(指人）Howtochoosetherightprepositions1.Doyoulikethebookshespent$10?2.Doyoulikethebookshepaid$10?3.Doyoulikethebookshelearnedalot?4.Doyoulikethebooksheoftentalks?根据定语(dìngyǔ)从句中谓语动词的习惯搭配来决定。1.Doyouknowthegirl_____________________ourheadteacheristalking?2.Ican’tfindmydictionary___________Ipaidover$100.3.Thisisthegoodcar__________Ispentallmymoney.4.Theteacher_____________youhavebeenwaitingiscominginaminute.I‘llneverforgettheday.Hemadethespeechonthatday.2)根据先行词的搭配习惯(xíguàn)来决定。Isthisthewatchthatyouarelookingfor?TheoldmanwhomIamlookingafterisbetter.固定(gùdìng)搭配的动词短语中的介词一般不能提前.常见的这类动词短语有:lookfor/after/forwardto,carefor(照顾，喜欢）hearof/about/from,takecareof等.ThisistherightplaceI’mlookingfor.Thegirlwhomheislookingafterishissister.Thisistheteacherwhosedaughterisafamousdoctor.=Thisistheteacher_________________isafamousdoctor.RecentlyIboughtanancientChinesevase（花瓶(huāpíng)）,_______wasveryreasonable（合理的）.A.whichpriceB.thepriceofwhichC.itspriceD.thepriceofwhoseWehavethreeforeignteachers,___________arefromCanada.(其中(qízhōng)的两个）Thefactoryproduceshalfamillionpairsofshoeseveryyear,80%_______aresoldabroad.A.ofwhichB.whichofC.ofthemD.ofthat3.代词(dàicí)+介词+关系代词(dàicí)（代词(dàicí)有all,both,none,neither,either,some,any等）Lastweek,twopersonscametoseethehouse,___________wantedtobuyit.A.bothoftheyB.neitherofwhomC.bothofthemD.allofwhom4.形容词最高级+介词(jiècí)+关系代词Therearetwobuildings,________standsnearlyahundredfeethigh.A.thelargerB.thelargerofthemC.thelargeronethatD.thelargerofwhich5.介词+关系(guānxì)代词+名词Intheoffice,Ineverseemtohavetimeuntilafter5:30p.m.,_______timemanypeoplehavegonehome.A.whoseB.thatC.onwhichD.bywhichPracticemakesperfect!Exercises:1.Thenewly-builtcafe,thewallsof___arepaintedlightgreen,isreallyapeacefulplaceforus,especiallyafterhardwork.(2010江苏，32)A.thatB.itC.whatD.whichExercises:2.Thesettlementishometonearly1,000people,manyof___lefttheirvillagehomesforabetterlifeinthecity.（2010浙江(zhèjiānɡ)，3）A.