Unit+1+People+of+Achievement+Learning+About+Language+非限制性定语从句与限制性定语从句区别 高二英语人教版（2019）选择性必修第一册

restrictiverelativeclause

non-restrictiverelativeclause①onlypeoplewhospeakRussianshouldapplyforthejob.②Thericewhichwehadfordinnerlastnightwasverygood.③Mr.brown,whosesonwonthespellingcontest,isveryproudofhisson’sachievement.WHAT’STHEDIFFERENCEBEWTEENTHEM?restrictiverelativeclause

non-restrictiverelativeclauseBeforewelearn,Weshouldbefamiliarwiththesymbolsusedinthetwoclauses.Restrictiveclausesareneveroffsetbycommas,whilenonrestrictiveclausesare.

restrictiverelativeclause

non-restrictiverelativeclauseRestrictiveclausesareneveroffsetbycommas,whilenonrestrictiveclausesare.

①OnlypeoplewhospeakRussianshouldapplyforthejob.②Thericewhichwehadfordinnerlastnightwasverygood.③Mr.brown,whosesonwonthespellingcontest,isveryproudofhisson’sachievement.Trytodistinguishthemrestrictiverelativeclause

non-restrictiverelativeclauseFIRST.Understandthemeaningbehindthenames:RESTRICTIVE

and

NON-RESTRIVTIVETrytounderstandthefollowingsentences①TheastronautwasNeilArmstrong.②TheastronautwhofirststeppedonthemoonwasNeilArmstrong.restrictiverelativeclause

non-restrictiverelativeclause①TheastronautwasNeilArmstrong.②TheastronautwhofirststeppedonthemoonwasNeilArmstrong.Wecanseethattheclause"whofirststeppedonthemoon"definesthesubject"theastronaut."TheastronautTheastronautwhofirststeppedonthemoonThesentence①’ssubjectThesentence②’ssubject≠(Anyonewhohasbeenanastronaut,regardlessofwhethertheyfirststeppedonthemoonornot,isstillconsideredanastronaut.)restrictiverelativeclause

non-restrictiverelativeclause①Kayleeisanaccomplishedfigureskater.②Kaylee,whojustgraduatedfromhighschool,isanaccomplishedfigureskater.Thephrase“whojustgraduatedfromhighschool”doesnotdefinethesubject“Kaylee.”KayleeKaylee,whojustgraduatedfromhighschool.Thesentence①’ssubjectThesentence②’ssubject=(WhetherKayleegraduatesfromhighschoolornot,shewillalwaysbeKaylee.)restrictiverelativeclause

non-restrictiverelativeclauseArestrictiverelativeclausedefinesaspecificcomponent,indicatingaparticularobjectorthing.Incontrast,anon-restrictiverelativeclauseprovidesadditionalinformationthatdoesnotchangetheoverallmeaningifitisomitted.Inotherwords,ifarestrictiverelativeclauseisomitted,thecomponentwilldifferfromthepreviousversion.Fromtheabove,wecanconcludethat:restrictiverelativeclause

non-restrictiverelativeclauseArestrictiverelativeclausedefinesaspecificcomponent,indicatingaparticularobjectorthing.Incontrast,anon-restrictiverelativeclauseprovidesadditionalinformationthatdoesnotchangetheoverallmeaningifitisomitted.Tokeepthecomponentthesame,therestrictiverelativeclausecan’tberemoved,whilethenon-restrictivecanbeomitted.restrictiverelativeclause

non-restrictiverelativeclauseLET’SDOSOMEEXERCISES!restrictiverelativeclause

non-restrictiverelativeclauseEXERCISE:PunctuatingadjectiveclausesDirections:addcommaswherenecessary①AlanandJackiewhodidnotcometoclassyesterdayexplainedtheirabsencetotheteacher.②Thestudentswhodidnotcometoclassyesterdayexplainedtheirabsencetotheteacher.③OnlypeoplewhospeaksRussianappliedforthejob.restrictiverelativeclause

non-restrictiverelativeclauseEXERCISE:PunctuatingadjectiveclausesDirections:addcommaswherenecessary④Ricewhichisgrowninmanycountriesisastaplefoodthroughoutmuchoftheworld.⑤Ariverwhichispolluted

issituatedinavalley⑥Iliveinatownthatissituatedinavalley.restrictiverelativeclause

non-restrictiverelativeclauseSUMMARY①Restrictiveclausesareneveroffsetbycommas,whilenonrestrictiveclausesare.

②Arestrictiverelativeclausedefinesaspecificcomponent,indicatingaparticularobjectorthing.③anon-restrictiverelative