Unit3Lookinggood,feelinggoodNon-restrictiveattributiveclauses&Questiontags1.定语从句(attributiveclauses)通常由关系代词或关系副词引出。常见的关系代词有：which(指物)，that(既可指人又可指物)，who(指人，在定语从句中作主语或宾语)，whom(指人，在定语从句中作宾语)，whose(指人或物，作定语)等。关系副词有:when(指时间)，where(指地点)，why(指原因)等。2.定语从句分为限制性定语从句(restrictive)和非限制性定语从句(non-restrictive)两种。限制性定语从句紧跟先行词，与先行词之间一般不加逗号；非限制性定语从句与主句之间通常用逗号分开。1.Mymother,whoyoumetlastyear,keepstellingmenottotakethembecausetheyaredangerous.2.I’mtakingweight-losspillscalledFat-Less,whicharequitepopularamongyoungwomenhere.3.Mymotherinsistedonsendingmetothehospital,whereIreceivedgoodmedicaltreatment.4.It’sthesameinChina—manypeople,someofwhomarenotoverweightatall,arealwaysgoingondietortakingweight-losspills,whichareoftendangerous.Differencesbetweentherestrictiveandnon-restrictiveattributiveclauses.1.Hisfather,whoworksinBeijing,camebackyesterday.2.Shanghai,whichisinEastChina,isdevelopingrapidly.Conclusion11.Ihaveasisterwho/thatworksinahospital.我有一位在医院工作的姐姐。2.Ihaveasister,whoworksinahospital.我有一位姐姐，她在医院工作。3.Themagazinesherewhich/thathavenicepicturesinthemwerewrittenbyhim.里面有漂亮图画的那些杂志是他写的。4.Themagazineshere,whichhavenicepicturesinthem,werewrittenbyhim.所有的杂志都是他写的，里面都有漂亮的图画。Conclusion2Thisisthehouse(which/that)weboughtlastmonth.这是我们上个月买的那幢房子。2.Thehouse,whichweboughtlastmonth,isverynice.这房子很漂亮，是我们上个月买的。3.HeseemsnottohavegraspedwhatImeant,whichgreatlyupsetsme.他似乎没领会我的意思，这使我心烦。Conclusion31.Thefamousbasketballstar,___comesfromAmerica,willvisitourschoolsoon.2.Inthosedays,sheusedtogotoMrblack,with_____shehadawonderfultime.3.Iboughtacaryesterday,_____costmealot.4.Xi’an,______Ivisitedlastyear,isaniceoldcity.5.HewillcometoseemenextJuly,_____hewon’tbesobusy.6.Theschool,_____Ioncestudied,wasbuiltthirtyyearsago.7.Johnsaidhe’dbeenworkingintheofficeforanhour,_____wastrue.8.__weallknow,heisgoodatEnglish.非限制性定语从句考点归纳：2.Sheisateacher,asisclearfromhermanner.她是个教师，这一点从她的举止可以清楚地看出。3.Hemissedtheshow,whichwasreallyagreatpity.他错过了演出，这真是很大的遗憾。Conclusion2.as和which引导非限制性定语从句的不同之处在于：(1)as引导的定语从句可置于句