【课件】Unit5Discovering+Useful+Structures人教版（2019）必修第一册.pptx

Unit 5 Discovering Useful StructuresRestrictiverelativeRestrictiverelativeclausesclauses()1.To learn the attributive clause introduced by relative adverbs and pronouns+relative pronouns.2.To differentiate relative adverb from relative pronouns.step 1：学习目标(1)：是人是人先行先行词whowhomwhosethatwhosethatwhich是物是物Lead-in Letshaveareviewstep 2：问题导学（一）3自习金版教程P136-137，思考以下问题：1.引导定语从句的关系副词有哪些？2.这些关系副词在定语从句中有什么作用？step 3：点拨运用（一）10当引导定语从句的关系词在从句中用作当引导定语从句的关系词在从句中用作地点、时间、地点、时间、原因状语原因状语时，应使用时，应使用关系副词关系副词where,when,whywhere,when,why或或“介词介词which”which”。(一一)关系副词的作用关系副词的作用1 1指代指代表示地点、时间、原因的先行词表示地点、时间、原因的先行词。2 2在从句中在从句中充当句子成分充当句子成分状语状语，即在从句中起，即在从句中起副词的作用。副词的作用。3 3起起连接作用连接作用，把主句和定语从句连接起来构成主，把主句和定语从句连接起来构成主从复合句。从复合句。当当先行词为表示先行词为表示具体具体地点地点的名词的名词(如：如：place,house,airport等等)或抽或抽象地点的名词象地点的名词(如：如：point,case,situation,stage,position,condition等等)，且关系词在从句中作，且关系词在从句中作地点地点状语状语，定语从句用，定语从句用where引导。引导。This is the hotel where they stayed.we have reached a point where a change is needed.He gets into a situation where it is hard to decide what is right or wrong.1.where引导的定语从句当当先行词为表示先行词为表示时间时间的名词的名词(如：如：day,time,week,month,year等等)，且关系词在从句中作，且关系词在从句中作时间状语时间状语，定语从句用，定语从句用when引导。引导。I still remember the time when I was in college.we will never forget the day when we flew at an altitude of 6000 meters in the sky.2.when引导的定语从句当当先行词为表示先行词为表示原因原因的名词的名词reason,且关系词在从句中作且关系词在从句中作原因状语原因状语，定语从句用定语从句用why引导。引导。This is the reason why he left in a hurry.I dont know the reason why he didnt turn to his friends for help yesterday.3.why引导的定语从句观察例句察例句1.Doyourememberthedayswhenwechattedwitheachotherallnight?2.Doyourememberthedaysthat/whichwespentstudyingtogetherintheclassroom?3.Idontknowthereasonwhyhedidntturntohisgoodfriendforhelpyesterday.4.Wewontacceptthereasonthat/whichyouhavegiven.5.Canyourecognizethehousewhereyouusedtolivewithyourparents?6.Canyourecognisethehousethat/whichTomsoldthreeyearsago?注意辨析注意辨析表示表示时间、地点及原因的名词时间、地点及原因的名词作先行词时，作先行词时，从句的引导词用从句的引导词用关系代词还是关系副词可以用以下方法判断：关系代词还是关系副词可以用以下方法判断：把先行词代入宾语从句中，若作主语或宾语用关系代词；把先行词代入宾语从句中，若作主语或宾语用关系代词；作状语则用关系副词；作状语则用关系副词；定语从句中的谓语动词是及物动词，后面无宾语，用关定语从句中的谓语动词是及物动词，后面无宾语，用关系代词；是不及物代词则用关系副词。系代词；是不及物代词则用关系副词。1.Isthistheplace_youwereborn?A.whichB.whereC.whatD.that2.Isthistheplace_someGermanfriendsvisitedlastyear?A.whichB.whereC.whatD.why3.Thehouse_thefamouswriterwrotehisworksisamuseumnow.A.whichB.whereC.whatD.that4.Thehouse_thefamouswriterboughtmanyyearsagoisamuseumnow.A.thatB.whereC.whatD.why5.Hetoldherthereason_heisunhappy,butshedoesntbelievethereason_hegivesher.A.why;whyB.why;whichC.that;whyD.which;whystep 2：问题导学（二）3自习金版教程P137-138，思考以下问题：1.“介词+关系代词”引导的定语从句中关系代词应该如何选择？2.“介词+关系代词”引导的定语从句中介词应该如何选择？when相当于相当于“at/in/on/during等等+which”I remember the day when(=on which)I settled in China.where 相当于相当于“in/at/on等等+which”The house where(=in which)Mark lived is now a library.why 相当于相当于“for+which”Is that the reason why(=for which)she suddenly changed her mind?“介词+关系代词”引导的定语从句关系副词关系副词when，where，why引导定语从句时，也可用引导定语从句时，也可用“介词介词+which”代替关系副词。代替关系副词。step 3：点拨运用（二）121.1.关系代词的确定关系代词的确定“介词介词 +关系代词关系代词”引导的定语从句引导的定语从句当先行当先行词是是人人时，用，用介介词+whom引引导定定语从句，从句，例如：Do you know the girl with _ our teacher is talking?当先行当先行词是是物物时，用，用介介词+which引引导定定语从句，从句，例如：This is the room in _ my grandmother used to live.whomwhich2.介词的确定介词的确定 根据根据先行先行词的搭配的搭配关系：关系：1)I still remember the day _ _ I met TF boys.2)I will never forget the farm _ _ I worked with you.3)The money _ _ you were to buy food is gone.onwhichonwhichwithwhich“介词介词 +关系代词关系代词”引导的定语从句引导的定语从句2.介词的确定介词的确定 根据根据谓语动词或形容或形容词的搭配的搭配习惯1)Do you like the book _ _ she spent$10?2)Do you like the book _ _ she paid$10?3)The West Lake,_ _ Hangzhou is famous,is a beautiful place.onwhichforwhichforwhich2.介词的确定介词的确定根据根据句子的意思句子的意思来确定来确定1)Air,_ which man cant live,is really important.空气非常重要，没有了它人类便不能生存。2)This is the man _ whom my brother has worked for ten years.这就是和我弟弟一起工作了十年的那个人。withoutwith2.介词的确定介词的确定表示表示“所有所有”或或“整体的一部分整体的一部分”时通常用介通常用介词“of”1)He has two sons,_ graduated from Peking University.他有两个儿子，他们都毕业于北京大学。2)Tom wrote many childrens books,nearly half _ were about campus culture.汤姆写了很多儿童书籍，其中将近一半是关于校园文化的。bothofwhomofwhich用介用介词 关系代关系代词填空填空。1.Whoistheperson_youjustshookhands?2.Chinaisapowerfulcountry,_weareproud.3.Thisisthetree_weusedtoplaygames.4.Thisismyglasses,_Icantseeclearly.即学即即学即练withwhomwithoutwhichunderwhichofwhichstep 4：课堂小结 2关系副词用法注注意意：一一些些表表示示抽抽象象地地点点的的名名词词，如如point，case，position，condition，situation等等用用where引导引导“介词介词+关系代词关系代词”结构中注意结构中注意关系代词和介词关系代词和介词的使用的使用whenwherewhy指指时间时间，在定语从句中充当时间，在定语从句中充当时间状语状语指指地点地点，在定语从句中作地点，在定语从句中作地点状语状语指指原因原因，在定语从句中作原因，在定语从句中作原因状语状语step 5:当堂检测：151.Thatwasntthereason_yourbrotherliedtoyou.2.Weallrememberthedays_westudiedtogetheratschool.3.Theauthor_youcriticizedinyourreviewhaswrittenareply.4.Wedrovepastthehouse_weusedtolive.why/forwhichthat/whom/whowhen/onwhichwhere/inwhich5.Isthisthevillage_thefamousscientistwasborn?6.Scientistshaveadvancedmanytheoriesaboutwhyhumanbeingscrytears,noneof_hasbeenproved.inwhich/wherewhichTai Dong is a small and beautiful city in Taiwan_ I grew up.My family moved there fromTaipeiinthesummer_Iwasborn.Thehousein_IgrewupisonamainstreetinTaiDong.My father sold tea,and my mother had a smallrestaurant across from ourhouse.Acousin ofmine_familyIvisitedeverysummerlivedwithus.Wehadahappylife!whenwherewhosewhich完成句子完成句子我很喜欢英语课，我可以自由发表自己的看法。我很喜欢英语课，我可以自由发表自己的看法。IenjoymyEnglishclass_freely.9月月1日是暑假结束后学生们回到学校的日子。日是暑假结束后学生们回到学校的日子。September1stistheday_afterasummervocation.这就是成就我梦想的美丽校园。这就是成就我梦想的美丽校园。Thatisabeautifulcampus_老师表扬他是因为他给同学们树立了好榜样。老师表扬他是因为他给同学们树立了好榜样。Thereason_isthathesetagoodexampletothestudents.whereIcanvoicemyopinionswhenstudentsgobacktoschoolwhereImademydreamscometruewhytheteacherpraisedhim1.1.复习复习“定语从句定语从句”相关知识相关知识2.2.完成课时作业完成课时作业step 6:家庭作业 Thank you