搜索
Unit4GrammarDefiningrelativeclauses限定性定语从句本课目标１.了解定语从句的概念及基本用法２.区别使用关系代词who,which,that３.了解关系代词与先行词之间的位置关系On20thJuly1969,Armstrongbecamethefirsthumanthatwalkedonthemoon.TherearereportsthatsayArmstrongandAldrinsawalienspacecraftwhentheywereonthemoon.ItissaidthatArmstrongsentamessagetoMissionControlwhichsaidthattwohuge,strangeobjectslandednearthemandwerewatchingthem.Definingrelativeclauses限定性定语从句1.定语：用来说明名词或代词的品质与特征的词或者词组。它对那个名词性成分起修饰或限定的作用。名词解释:2.定语从句：充当定语成分的从句。即，在在复合句中，修饰主句中某一个名词性成分的从句就是定语从句。Thisisacleverboy.Theboywhoiscleverismybrother.3.先行词：被定语从句修饰的名词或名词性成分。定语从句跟在先行词后面。名词解释:4.关系词：引导定语从句的关联词。它包括关系代词和关系副词。Theboywhoiscleverismybrother.Theboywhoiscleverismybrother.•1.ThebookwhichIboughtyesterdayisinteresting.•2.HeisthepersonthatdiscoveredAfrica.•3.Theteacherthankedthestudentwhoclosedthedoor.•4.Ithinkthatheisthegreatestpersonintheworld.•5.Haveyoufoundthepenthatyourmothergaveyou?Moresentences•1.ThebookwhichIboughtyesterdayisinteresting.•2.HeisthepersonthatdiscoveredAfrica.•3.Theteacherthankedthestudentwhoclosedthedoor.•4.Haveyoufoundthepenthatyourmothergaveyou?Rule1:Wecanuseclausetodescribepeople.“who/that”Rule2:Wecanuseclausetodescribethings.which/that关系代词（relativepronoun）人事物who√which√that√√只能用that1.ThisisthebestnovelthatIhaveread.当先行词被序数词，最高级等词修饰时2.IsthereanythingthatIcandoforyou?当先行词是something,anything,nothing,all等不定代词时3.Heistheonlystudentthatcansingthissong.当先行词被only,just,very,all,oneof,little,few,any等词修饰时4.I’veneverheardofthepeopleandthingsthatyoutalkedaboutjustnow.当先行词同时指人和物时2.关系代词的用法：who指人，which指物，that指人或者物。Sumup１．定语从句修饰先行词,先行词通常为名词