介词在句子中不能单独使用。只能与名词、代词等构成介词短语，在句中作状语、后置定语、表语和补语等。介词+宾语名词或代词数词作介词宾语behindothers2.动名词(短语)作介词宾语Hemakesalivingbyteaching.3从句作介词宾语。Hewassurprisedatwhatshesaid4不定式(短语)作介词宾语butexceptHeneverdidanythingbutwatchTV5介词短语作介词宾语Suddenlyhecameoutfrombehindthedoor.from,till,until,since,except,insteadofto一对于1strange(common,new,familiar,,distinct,sensitive,home)to2get(be)to,usedto,beaccustomedtoadaptto。beopposedtopayattentiontobeaddictedto3barstodevelopment,thebarriertoprogress4introductiontopassageanswertokeyto5toone’ssurprise另引申表示对比，比较1：以-ior结尾的形容词，后接介词to表示比较，如：superior,inferior,priorsenior,juniorThequarrelhappenedpriortomyarrival.2:一些本身就含有比较或比拟意思的形容词，如equal，similar，equivalent，AissimilartoBinmanyways.3：表示一些先后顺序的形容词，如：second,,next,secondto二到1建筑构件,如:entry,entrance,approach,access,passage,exit,,pathwaytotheschool2increasetodatebacktoaddupto三向giveintoprovetoturntosuggestto四还具有依据,伴随,和着节奏的含义,如:singtopianoIlikeMr.Miner’sspeech;itwasclearandthepoint.atB.onC.toD.OfWith1与„一道；跟„和gotherewithmystudentsagreewith2用；使用（工具、手段等）writewithapencil3具有；带有having;carrying，在…身上，在…身边之意Themanwiththeblackumbrellaacountrywithalonghistory4„对„对垒fightwithangrywithsb5由于；因为becauseofShewasredwithanger6随着Amangrowswiserwithagewithtimegoingby7with+n“。。。。。。地”withdifficulty=difficultlywithwarmth=warmlywithcuriosity=curiouslywithpride=proudly8表条件）若是Withmoremoney，Iwouldbeabletobuyit9表示在……之下。withthehelpof……withone’shelp10with+n（pron）+补语（nadjadvprepdoingtododone）Soitiswith+宾格代词„某人的情况也如此Itisthesamewith„某人的情况也如此Asisoftenthecase(withsb..)对某人来说是常事Aswith„正如„的情形一样ThedictionaryiswhatIwant,butIdon’thaveenoughmoneyme.A.byB.forC.inD.Withfor一为为了sth、sb目的利益为（得到，拿到，取得）searchspforlookforasksbforadviceWhatdidyoudothatfor?二因为，由于befamousforblamesbfor三(表用途)用于，用来Thisknifeisforcuttingbread.这把小刀是用于切面包的。四(表适合)适于，适合。如：Doyouhaveanybooksforchildren?你有适合小孩子看的书吗？五表时间、距离、数量等)达，计I’vebeenherefortenyears.六(表目标、去向)去leave,start,setout,setoff,head,七支持，赞成IalwayswantedtodothejobwhichI’dbeentrained_