Unit+4+Friends+Forever+Using+language+定语从句课件 高中英语外研版（2019）必修第一册.pptxVIP

Unit4UsinglanguageAttributiveclauses(that,which,who,whom,whose)

Toknowwhatanattributiveclauseis.TolearnhowtocombinetworelevantsentencesintoanattributiveclauseTolearntheusageofthat,which,who,whom,whoseinattributiveclausesTolearntowriteattributiveclauses

一．弄清定语从句的几个概念1.功能：相当于形容词，修饰名词或代词或整个句子，在句中作定语2.位置：定语从句置于被修饰词之后Thosewhoearnmostpaymosttax.3.先行词：被定语从句修饰的名词或代词称为先行词4.关系词：引导定语从句的都称关系词

5.定从分为限制性定语从句和非限制性定语从句。非限制性定语从句前有逗号！限制性定语从句为先行词在意义上不可缺少的定语从句,若去掉,被修饰的主句的内容就不完整或失去意义。这种从句和主句的关系十分密切,写时不可用逗号分开。Ihavefoundthefactorywherehestayedlastweek.IwasimpressedwithBeijing,whereIstudiedfortwoweekslastsummer.

二．关系词的双重身份及其选用原则1.看关系词在从句中所充当的成分。??2.看先行词指的是什么,然后选择相应的关系词?先行词前指代先行词关系词定语从句后在从句中做句子成分人who主语/宾语(说明是“谁”)人whom宾语(说明是“谁”)人/物whose定语(说明是“谁的”)人/物that主语/宾语物/句子which主语/宾语时间when时间状语原因why原因状语地点where地点状语人物/事件/句子as主语/宾语/表语

三．熟记如下原则:A：关系词必用which的定语从句1）在非限制性定语从句中指代物或先行句2）在关系词前有介词时3）当先行词本身是that时

B：必须用that的情况1）先行词被①形容词最高级②序数词③限定词theonly,thevery,any,no,all,every等修饰时。2）先行词为不定代词something,anything,everything,all,much,little等时。3)先行词中既有人又有物时。Hewaslookingpleasantlyatthechildrenandparcelsthatfilledhisbus.4)当主句中含疑问词which时。Whicharethebooksthatyouboughtforme?WhoisthegirlthatistalkingtoTominEnglish?

C:whose作关系词既指人又指物，在从句中作定语。它可转化为“the+名词+ofwhich/whom”和“ofwhich/whom+the+名词”的形式。DoyouknowMr.Smithwhosestoryisverymoving?DoyouknowMr.Smith,thestoryofwhomisverymoving?Thereisaroom,whosewindowfacestheriver.（whose引导定从修饰room）Thereisaroom,thewindowofwhichfacestheriver.Thereisaroom,anditswindowfacestheriver.(2并列句用and连接)

D:?关系副词when与where,why：when指时间=in/at/on/duringwhich；where指地点=in/at/fromwhich；?why指原因=forwhich1）Iheardthereason___________hegaveforhiscominglate.2）Iheardthereason________________hewaslate.3）Isthisthefactory_