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1、语法系列Grammar3rdAttributiveClause(II)定语从句（二）I定语从句的种类在英文中，有两种定语从句：限定性定语从句与非限定性定语从句。这两种定语从句在其功能和形式方面都有明显的区别：Ø限定性定语从句限定性定语从句与主句的关系很紧奏，对其先行词起限定、修饰的作用。如果将其去掉，会影响句子意思的完整性；有时甚至于引起费解、误解。例如：Theauthorswho(whom/that)hementionedareallwellknown.Oceancurrentsaffecttheclimatesofthelandsnearwhichth
2、eyflow.Theyexplainedthereasontouswhytheyhadhatedusbefore.Ø非限定性定语从句非限定性定语从句在形式上就与主句很松散，它与主句之间有一个逗点"，"隔开；它对其先行词没有限定、修饰的作用，只起补充、说明的作用。即使将其去掉，也不会影响句子意思。非限定性定语从句在中文译文里，我们往往将其作为一个分句处理，而不把它作定语翻译。Theclock,whichmygreatgrandfatherbought,isstillingoodorder.Mybrother,whoworksabroad,iscomingba
3、cknextweek.ThesportmeetingwillbeheldinOctober,whentheclimateisverycongenial.He’sgoingtogotogolfcourse,whereheintendedstoputinsomepractice.Thesunheatstheearth,whichmakesitpossibleforplantstogrow.比较：Theoldmanhasason,whoisinthearmy.Theoldmanhasasonwhoisinthearmy.注意：Ø1.that不能用来引导非限定性定
4、语从句Arocketcarriesoxygenwithit,whichmakesitpossiblefortherockettotravelinspace.Ø2.非限定性定语从句中关系代词做宾语时不能省略3__________________________________________________________________Grammar3AttributiveClauseII语法第三讲定语从句-I语法系列Thefilm(which)Isawlastnightisaboutayoungteacher.Theshedinourgarden,whi
5、chmyfatherbuiltmanyyearsago,haslastedforalongtime.Sheintroducedmetoherhusband,whomIhadn’tmetbefore.名词（代词、形容词比较级或最高级、数词等）+介词+关系代词结构常用来引导定语从句，而且这一结构多用于非限定性定语从句。Theteacheraskedusseveralquestions,theanswertowhichprovedveryinteresting.Atthescenethereweretwocigarettesleft,oneofwhichwass
6、tainedwithlipstick.Thereareover100naturalelements,someofwhichareveryfamiliar.Airisamixtureofmanydifferentgases,ofwhichthelargestamount(/thelargestamountofwhich)isnitrogen(氮)，andthenextlargestamountisoxygen.Thetwentypassengerswerekilledintheaccident,tenofwhomwerestudent.II关系代词和关系副词
7、的选择同样的先行词，由于在从句中担任的作用不听，需选用不同的关系代词。在选择关系代词时，应注意以下问题：1.关系词在从句中担任什么成分2.先行词表示的是人、物、时间、地点、还是原因3.关系词引导的是限定性定语从句还是非限定性定语从句ThisisaplacewhichI’velongwantedtovisit.Iknowofaplacewherewecanswim.Ican’tacceptthereasonwhichhegave.Idon’tknowthereasonwhyhewasabsent.IstillrememberthatdaywhenIgotmy
8、firstgoldmetal.Istillrememberthat
