Unit5 Languages around the World Discovering useful structures 定语从句课件-2023-2024学年高中英语人教版（2019）必修第一册.pptxVIP

U5DiscoveringUsefulstructureRestrictiverelativeclauseDiscribeyourfavouritethingsUnit5

DefinitionReview:Whatisarestrictiveclause?structure?1.在复合句中,修饰某一_____或_____的从句叫定语从句。被修饰的名词或代词叫_______,定语从句一般放在先行词的_____,引导定语从句的词叫做_______。先行词后面关系词名词代词先行词关系词定语从句++关系代词关系副词?（which,who,whom…）（where,when,why）

找出定语从句、关系词及关系词在从句中的充当的句子成分。1.Itwasatimewhenpeopleweredividedgeographically.2.EmperorQinshihuangunitedthesevenmajorstatesintooneunifiedcountrywheretheChinesewritingsystembegantodevelopinonedirection.3.Therearemanyreasonswhypeoplelearnaforeignlanguage.4.ThesewereanimalbonesandshellsonwhichsymbolswerecarvedbyancientChinesepeople.Step2.Presentation

关系副词time时间状语placereason地点状语原因状语作状语，即从句成分齐全，不缺主，宾，表，定语。引导定语从句的关系副词包括when,where,why，一般代替先行词在从句中作状语，表示时间、地点、原因。ThetimewhenIarrived.ThemineswhereIworked.ThereasonwhyIgotajob.关系副词指代在从句中充当的成分例句whenwherewhy

Eg：Istillrememberthedayswhenweswamtogetherintheriver.总结关系副词的作用：指代表示时间、地点、原因的先行词连接主句和从句在从句中充当句子成分—状语先行词（表示时间）关系副词（作状语）定语从句关系副词

如何区分关系代词和关系副词引导的定语从句：表示时间、地点及原因的名词作先行词时,关系词在定语从句中作状语时,用关系副词;若关系词在定语从句中作主语、宾语时,则用关系代词。方法：分析从句句子成分关系副词

Eg:Theaccidenthasreachedtothepointboththeirparentsaretobecalledin.关系副词—where特殊用法关系副词where还可用在表示抽象意义的地点名词后,如situation(情形),stage(阶段),point(地步),case(情况),position(位置),condition,activity,scene,occasion等,意思是“到了某种地步,在某种境况或情况中”。where

重要提示并非所有的表示时间、地点、原因的先行词，后面的定语从句都用when和where引导。如果定语从句中缺少主语或宾语，就要用that或which引导。Thisisthehouse_____________myfatherbuiltlastyear.Doyoustillrememberthedays___________wespentinthecountryside?that/whichthat/which关系副词结论：先行词表时间、地点、原因关系词在从句中作状语

判断先行词在从句中的成分，用正确的关系词填空。Thereason_______________hegaveuswasquitereasonable.Thisisthereason_______________hewent.Thisistheplace____________wevisitedlastyear.Thisistheplace____________heworks.Thatwasthetime____________hearrived.Doyoustillrem