高中英语语法定语从句

高中英语语法定语从句总复习定义：用来说明主句中某一名词或代词（有时也可说明整个主句或主句中一部分）而起定语作用的句子叫作定语从句。一、关系带词引导的定语从句1.关系代词用来指代先行词是人或物的名词或代词句子成分用于限制从句或非限制性从句只用于限制性从句代替人代替物代替人或物主语Whowhich主语Whomwhichthat宾语Whose(=ofwhom)Whose(=ofwhich)that例１：ThisisthedetectivewhocamefromLondon.例２：ThebookwhichIamreadingiswrittenbyTomasHardy.２．关系代词的用法(1)如果先行词是all,much,anything,something,nothing,everything,little,none等不定代词，关系代词一般只用that，不用which。例如：Allthepeoplethatareburstintotears.（所有人都迸出眼泪。）(2)如果先行词被形容词最高级以及first,last,any,only,few,most,no,some,very等词修饰，关系代词常用that,不用which,who，或whom。(3)非限制性定语从句中，不能用关系代词that,作宾语用的关系代词也不能省略。Thereareaboutsevenmillionpeopletakingpartintheelection,mostofwhom、arewelleducated.(4)which还有一种特殊用法，它可以引导从句修饰前面的整个主句，代替主句所表示的整体概念或部分概念。在这种从句中，which可以作主语，也可以作宾语或表语，多数情况下意思是与andthis相似，并可以指人。例如：Hesucceededinthecompetition,whichmadehisparentsveryhappy.(5)that可指人或物，在从句中作表语，（指人作主语时多用who）仅用于限制性定语从句中。(6)which可作表语，既可指人，以可指物。指人时，一般指从事某种职业或是有某种特征．品性或才能的人。Which引导的定语从句可以是限制性的，也可以是非限制性的。(7)如果作先作词的集体名词着眼于集体的整体，关系代词用which;若是指集体中的各个成员，则用who。(8)先行词有两个，一个指人，一个指物，关系代词应该用that。(9)如果先行词是anyone,anybody,everyone,everybody,someone,somebody,关系代词应该用who或whom，不用which。例如：Isthereanyoneherewhowillgowithyou?（在这的所有人中谁和你一起去？）３．“介词＋关系代词“是一个普遍使用的结构(1)“介词＋关系代词“可以引导限制性定语从句，也可以引导非限制性定语从句。“介词＋关系代词“结构中的介词可以是in,on,about,from,for,with,toat,of,without等，关系代词只可用whom或which,不可用that。(2)fromwhere为“介词＋关系副词“结构，但也可以引导定语从句。例如：Westoodatthetopofthehill,fromwherewecanseethetown..(3)像listento,lookat,dependon,payattentionto,takecareof等固定短语动词，在定语从句中一般不宜将介词与动词分开。例如：Thisistheboywhomshehastakencareof.（这是她曾今照顾的孩子。）二、关系副词引导的定语从句1．关系副词也可以引导定语从句关系副词在从句中分别表示时间．地点或原因。关系副词when在从句中充当时间状语，where充当地点状语，why充当原因状语。2.that可引导定语从句表示时间．地点或原因That有时可以代替关系副词when,where或者why引导定语从句表示时间．地点或原因，在that引导的这种定语从句中，that也可以省去。三、限制性定语从句与非限制性定语从句1．二者差异比较限制定语从句紧跟先行词，引导词同先行词之间一般不加逗号，仅修饰先行词，可以由关系代词．关系副词或that来引导。非限制性定语从句仅作补充或说明，用逗号与主句隔开，既可修饰先行词，又可修饰整个主句，不可用that引导。2．关系代词和关系副词的选择依据(1)弄清代替先行词的关系词在从句中作什么成分,作状语的应选用关系副词，作主语．宾语或表语的可选用关系代词。3.先行词与定语从句隔离定语从句一般紧跟在先行词之后，但定语从句与先行词之间有时也会插入别的成分，构成先行词与定语从句的隔离。例如：ThisisthearticlewrittenbyhimthatIspoketoyouabout..四、As在定语从句中的用法1.引导限制性定语从句和非限制性定语从句（１）as多与such或thesame连用，可以代替先行词是人或物的名词。（２）as也可单独使用，引导非限制性定语从句，作用相当于which。例如：Theelephant’snoseislikeasnake,asanybodycansee.(３）thesame…that与thesame…as在意思上是不同的。2．As引导的非限制性定语从句的位置as引导的非限制性定语从句位置较灵活，可以位于主句前面．中间或后面，一般用逗号与主句隔开，但which所引导的非限制性定语从句只能放在主句之后。例如：Asisexpected,theEnglandteamwonthefootballmatch.五、英语定语从句专项练习单项填空1．Ithinkyou’regottothepoint_______achangeisneeded,otherwiseyou’llfail.A.whenB.thatC.whereD.which2．Thehours_______thechildrenspendintheirone-wayrelationshipwithtelevisionpeopleundoubtedlyaffecttheirrelationshipswithreal-lifepeople.A.whenB.thatC.inwhichD.onwhich3．Manypeoplewhohadseenthefilmwereafraidtogototheforestwhentheyrememberedthescenes________peoplewereeatenbythetiger.A.thatB.bywhichC.whichD.inwhich4．Thereweredirtymarksonhertrousers______shehadwipedherhands.A.whereB.whichC.whenD.that5．______isoftenthecase,wehaveworkedouttheproductionplan.A.WhichB.WhenC.WhatD.As6．______isreportedinthenewspaper,talksbetweenthetwocountriesaremakingprogress.A.ItB.AsC.ThatD.What7．Therearemanypeople_________onlyon-lineactivityissendingandreceivinge-mails.A.whoB.thatC.whichD.whose8．EBay,AmazonandWalMartarepopularwebsites_______peoplecansellgoodstoeachother.A.whereB.whichC.whenD.whose9．Onhis10thbirthday.Martymanagestoescapefromthezooandgetsontothesubway,_____hebelievesthathecangotothewild.A.whichB.fromwhatC.throughwhichD.that10．Ihope________thelittle_____Ihavebeenabletodohasbeenofsomeuse.A.that;thatB./;bywhichC.what;whatD./;withwhich11．Thefarmersusewoodtobuildahouse______tostoregrainsalltheyeararound.A.withwhichB.towhichC.whichD.inwhich12．Thiswasafilm_________Spielbergusedrealactorsinsteadoftoys.A.whichB.whenC.inwhichD.there13．Thethoughtofgoinghometohisfamilywasallkepthimhappywhilehewasworkingabroad.A.thatB.whatC.thoseD.which14．Acontainerweighsmoreafterairisputin_____provesthatairhasweight.A.asB.itC.thatD.which15．—CanyoutellmewherePeterlives?—Overthere.Thetwostoreyhouse,_____thereisagarden.A.nearitB.fromwhichC.infrontofitD.infrontofwhich16．MissGreentookupthestoryatthepoint______thethiefhadjustmadeoffwiththejewels.A.whereB.whichC.asD.when17．—Whydoesshealwaysaskyouforhelp?—Thereisnooneelse_______,isthere?A.whototurntoB.shecanturntoC.forwhomtoturnD.forhertoturn18．Theyearbeforelast,partofSoutheastAsiawasstruckbyfloods,from_____effectsthepeoplearestillsuffering.A.thatB.whoseC.thoseD.what19．Nowadaysteenagersliketogotofastfoodrestaurants,___asthenamesuggests,eatingdoesn’ttakemuchtime.A.whoB.whereC.whichD.what20．LaterIwanttoreturnhomebutcouldn’tfindacompany________Icoulduse_____Ihadlearnt.A.where;thatB.where;whatC.when;whatD.that;that21．Governmentreports,legalpapersandmostbusinesslettersarethemainsituations________Englishisused.A.whenB.thatC.howD.where22．Wehopethemeasurestocontrolhouseprices，__________aretakenbythegovernment，willsucceed.A.asB.whenC.sinceD.after23．Theboytheteachersconsidered_______failedinthefinalexam,surprisedthemverymuch.A.tobethebest；whichB.asthebeststudent；thatC.tohavebeenstudyingwell