人教版（2025） 必修第一册 Unit 5 Languages Around the World Discovering Useful Structures 课件（共25张PPT）（含音频+视频）.pptx

Unit5Grammar

theAttributiveClause(2)

定语从句（2）

Contents:1.Theusageofrelativeadverb2.Theusageofpreposition+relativepronoun3.Thechoiceofrelativewordsinseveralspecialcases

定语从句中的关系词（relativewords）

Theusageofrelativeadverb关系副词基本用法

Activity1:Whatkindofinformationdoeseachclausecommunicate?Itwasatimewhenpeopleweredividedgeographically.2.EmperorQinshihuangunitedthesevenmajorstatesintooneunifiedcountrywheretheChinesewritingsystembegantodevelopinonedirection.3.Therearemanyreasonswhypeoplelearnaforeignlanguage.4.ThesewereanimalbonesandshellsonwhichsymbolswerecarvedbyancientChinesepeople.Information:atimeforanevent.Information:alocationforanevent.Information:areasonforanaction.Information:areasonforanaction.Information:areasonforanaction.Information:alocationforanaction.

Itwasatimewhenpeopleweredividedgeographically.Information:atimeforanevent（用于告知一个动作发生的时间）.小结1先行词（即被修饰的名词）在从句中做时间状语时，连接词使用when.Itwasatime.Atthattimepeopleweredividedgeographically.先行词为物,表时间，从句不缺主语,宾语(或者说从句是一个完整的基本句型)，用when引导定语从句,并在从句中充当时间状语。when=介词+which

2.EmperorQinshihuangunitedthesevenmajorstatesintooneunifiedcountrywheretheChinesewritingsystembegantodevelopinonedirection.Information:alocationforanevent（用于告知句中主语的位置）.小结2先行词（即被修饰的名词）在从句中做地点状语时，连接词使用where.EmperorQinshihuangunitedthesevenmajorstatesintooneunifiedcountry.InthatcountrytheChinesewritingsystembegantodevelopinonedirection.先行词为物,表地点，从句不缺主语、宾语,(或者说从句是一个完整的基本句型),用where引导定语从句,并在从句中充当时间状语。where=介词+which

3.Therearemanyreasonswhypeoplelearnaforeignlanguage.Information:areasonforanaction（用于提供关于某事发生的原因）.小结3先行词（即被修饰的名词）在从句中做原因状语时，连接词使用why。Therearemanyreasons.For(Becauseof)thesereasons,peoplelearnaforeignlanguage.先行词为reason,表原因，从句不缺主语,宾语(或者说从句是一个完整的基本句型),用why引导定语从句,并在从句中充当时间状语。why=forwhich

4.Thesewereanima