定语从句进阶三之非限制性定语从句及与简单句的区别

定语从句讲解层层进阶三之非限制性定语从句学习目标:1了解什么是非限制性定语从句能够与并列句区分开来2.掌握非限制性定语从句中关系词的使用尤其是whichwhomas的用法Task1什么是非限制性定语从句判断下列几组定语从句，判断哪些是非限制性定语从句，哪些是限制性定语从句。A:Teacherswhoarekindarepopularwiththestudents.B:Mr.Wang,whoiskind,ispopularwiththestudents.A:hehasasonwhoisadoctorB:hehasason,whoisadoctor归纳：非限制性定语从句的特点是会被一个_________________隔开。Task2非限制性定语从句与并列句的区别判断下面句子当中，应当填什么？•Hehastwosons.Bothof_____areteachers.（句）•Hehastwosons,andbothof______areteachers.（句）•Hehastwosons,bothof_______areteachers.（句）•HefailedhisEnglishtext,___________madehimveryupset（句）•HefailedhisEnglishtext,and______________madehimveryupset.（句）归纳：句号隔开的是两个简单句，逗号+并列连词如and,or,but等隔开的也是简单句，句子缺主语或宾语应当填____________代词如ithe等。只是被逗号隔开无连词连接的情况下，其中有一个是定语从句，缺主语或宾语应当填_____________代词•Task3:非限制性定语从句中关系词的使用。仍然是采用判断先行词在定语从句中充当什么成分来做题。但值得注意的是：1.不可用that.解释：如果先行词在定语从句中做主语或宾语，指人的主格只能用who,宾格只能用whom，指物的只能用which.,所属关系仍然是whose.所有关系词都不能省略。活学活用1.Thefamousbasketballstar,_____isanAmerican,cametoChinayesterday.2.Inthosedays,sheusedtogotoMr.Black,with______shehadawonderfultime.3.Iboughtacaryesterday,______costmealot.4.Xi’an,______Ivisitedlastyear,isaniceoldcity.5.Themanager’sdaughter,_______nameisAnn,gavemeapatientsmile2.当先行词在定语从句中做状语，做时间状语就用when=相应介词+which做地点状语就用where=相应介词+which，做原因状语就用forwhich（不可用why）6HewillcometoseemenextJuly,_______hewon’tbesobusy.7.Theschool,_______Ioncestudied,wasbuiltthirtyyearsago.8hehasbeenveryinterestedinplantsandearthsincehischildhood,__________hedeterminedtochoosegeographyashismajor(专业)incollege3.which和as还可以用来指代整个句子。which在逗号之后，指代上文；as可以放在句首，句中，更灵活。此外as还可以有一些固定的搭配。_____weknow,smokingisharmfultoone'shealth.Thesunheatstheearth,______isveryimportanttous.补充：as引导非限制性从句，常意为“正如”。可出现在句首、句中、句末。常见结构有•asisknowntoall•asisoftenthecase•asmight/couldbeexpected•ashasbeensaidbefore•ashasbeenmentionedabove•ashasbeenpointedout•ascanbeimagined•ascanbeseen(fromthesefigures•关系代词as在定语从句中指代整件事，充当句中的主语或者宾语，它经常和thesame,such,as一起搭配使用，共同构成一个固定词组。•Asweallknow,heisafamousscientist.•Asisexpected,heisadiligentboy.•Shehasthesamebookasyouhave•附加提高题•Theearthisround.____isknowntoall.•Theearthisround,_________isknowntoall.•____isknowntoall,theearthisround.•____isknowntoallthattheearthisround.•____isknowntoallisthattheearthisround.