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1、介词(prep.)一、介词按其构成可分为:1•简单介词:at,in,on,to,since,until等。Hefsworkedtheresince1998.2.复合介词:into,onto,outof等。Sheisoutofschool.3.二重介庁司:fromunder,frombehind,fromoutof,untilafter,exceptin等。Tmfromoutoftown.4.短语介词:becauseof,insteadof,inspiteof等。Eg:Iwentbacknotbecauseoftherain,butbecauseIwastired・二
2、、介词的作用:1.表示地点:after,along,at,below,by,of,near,over,through,under等。Eg:Nearthevillagetheboysareskatingontheice.Theylaydownundertheshadeofatree.2.表示时间:about,after,across,at,during,for,in,of,till,until等。Eg:Afterclasshewilltellusabouttheaccident.Theaccidenthappenedduringthenight.3.表示动作:at,a
3、cross,around,on,over,under等。Eg:Theearthgoesaroundthesun.Thecarisunderrepair.4.表示比较:as,like,above,over,with等。如:Eg:Shewassomethinglikehersister.ChineseismuchmoredifficultincontrastwithEnglish.5.表示原因:about,for,from,with等。Eg:Don'tworryaboutmylessons.Businesskeptmefromcoming.Hewasangrywithw
4、hatIdid.6.表示条件:to,with,without等。Eg:Withoutyouradvice,hewouldhavefailed.7.表示手段.方式:as,by,in,with等。Eg:Hebehavedasadrunkard.Learnthenewwordsbyheart.Weseewithoureyes・&表示距离、数量:from,in,within等。Eg:Myhouseistenmilesfromtheschool.Theywerethirtyinall.9.表示目的:as,for等。Eg:Ionlysaiditasajoke・It'stimef
5、orclass.10.表示让步:for,with等。Eg:Forallhiseffort,hedidn'tsucceed.Withallhismoney,heisunhappy・囲:for还可以弓丨导插入语:I,forone,shallvoteagainsttheproposal.三、介词的用法:1.与形容词搭配的词组有:beafraidof(怕)beangrywith(生某人的气)beawayfrom(不在某地)belatefor(迟到)bedifferentfrom(与不同)begoodat(善于)begood/badfor(对有益/有害)beintereste
6、din(对感兴趣)be/getreadyfor(为作好准备)besureof(对有把握)beworriedabout(为感到扌旦忧)1.介词后常用人称代词宾格和动词-ing形式2.几组易混淆的介词①关于时间前介词的具体使用,如下:1)介词"on”表示在具体的某一天,某一天的上午、下午或晚上,或对某_天或某_天的上午、下午、晩上进行详细的描述:onMondayafternoononMondayonthatdayonasunnydayinNovemberonSundayonMay1stOnNewYear'sDayonweekendsonthemorningofthefi
7、fteenthonawarmday2)“in”表时间段,即指在较长的一段时间内,相当于during年份:in(theyear)2012季节:inspiing/summer/autumn/winler月份:inAugustinAugust2012上下午:inthemorning/afternoon/evening其他:inthewinterholiday(s);inthedaytime“in+—段时间”用于将来时(w订1+do),用howsoon提问"in/overthepast+—段时间”,常用于现在完成时(havedone)"since+过去时间点”,常用于现