知识精讲课件Unit5LANGUAGESAROUNDTHEWORLD第4课时DiscoveringUsefulStructures高中英语人教版必修第一册

Unit5LANGUAGESAROUNDTHEWORLD第4课时DiscoveringUsefulStructures12理解并掌握关系副词和介词+关系代词引导的限制性定语从句的用法。能在具体语境中准确地使用关系副词和介词+关系代词引导的限制性定语从句。3能掌握本课时重点语言知识和句式。1.Itwasatimewhenpeopleweredividedgeographically.atimeforanevent2.EmperorQinshihuangunitedthesevenmajorstatesintooneunifiedcountrywheretheChinesewritingsystembegantodevelopinonedirection.alocationforanevent3.Therearemanyreasonswhypeoplelearnaforeignlanguage.areasonforanevent4.ThesewereanimalbonesandshellsonwhichsymbolswerecarvedbyancientChinesepeople.alocationforaneventTask1关系副词引导的限制性定语从句【基础盘点】1.when引导定语从句when引导定语从句时，从句的先行词为表示时间的名词，when在从句中作时间状语，相当于“介词in/at/on/during...+which”。IwillneverforgetthedaywhenIfirstsawyou.→IwillneverforgetthedayonwhichIfirstsawyou.我永远不会忘记第一次见到你的那一天。2.where引导定语从句where引导定语从句时，从句的先行词为表示地点的名词，where在从句中作地点状语，相当于“介词in/at...+which”。AfterlivinginParisforfiftyyearshereturnedtothesmalltownwherehegrewupasachild.→AfterlivinginParisforfiftyyearshereturnedtothesmalltowninwhichhegrewupasachild.在巴黎生活了50年后，他回到了儿时成长的那个小镇。注意：关系副词where可表示抽象的“地点”。常见的先行词有situation、stage、point、case、position、condition等。Task1关系副词引导的限制性定语从句3.why引导定语从句why引导定语从句时，从句的先行词通常是reason，why在从句中作原因状语，相当于“介词for+which”。Unsuccessfulpeoplecanalwaysfindreasonswhythey’renotdoingwell.→Unsuccessfulpeoplecanalwaysfindreasonsforwhichthey’renotdoingwell.不成功的人总能找到自己表现不好的理由。Task1关系副词引导的限制性定语从句【名师点拨】若先行词在定语从句中作状语，应用关系副词或“介词+关系代词”引导从句；若先行词在定语从句中作主语或宾语时，则应用关系代词引导。Idon’tbelievethereason(that/which)hegavemeforhisbeinglate.我不相信他给出的迟到的理由。Task1关系副词引导的限制性定语从句【变式训练】用适当的关系词填空(1)Thisistheplace

weheldapartylastweek.(2)Doyourememberthedays

wespenttogetheronthefarm?(3)Idon’tknowthereason

hedidn’tturntohisgoodfriendforhelpyesterday.(4)Iwon’tlistentothereason

youhavegivenus.(5)Thisistheplace

wevisitedlastyear.(6)Doyourememberthedays

wechattedwitheachotherallnight?wherethat/whichwhythat/whichthat/whichwhenTask1关系副词引导的限制性定语从句【衔接写作】同义句转换(1)I’llneverforgetthedaywhenIjoinedtheparty.→I’llneverforgettheday

Ijoinedtheparty.(2)Thereasonforwhichherefusedtheinvitationisnotclear.→Thereason

herefusedtheinvitationisnotclear.(3)ThehousewhereIlivedtenyearsagohasbeenpulleddown.→Thehouse

Ilivedtenyearsagohasbeenpulleddown.onwhichwhyinwhichTask1关系副词引导的限制性定语从句Task2“介词+关系代词”引导的限制性定语从句【名师点拨】选用介词的依据：(1)根据定语从句中谓语动词的搭配习惯(即固定短语);(2)根据先行词的搭配习惯(约定俗成，不一定是短语);(3)根据句子的意思。Task2“介词+关系代词”引导的限制性定语从句【变式训练】用“介词+关系代词”填空(1)Thisistheman

Ijustshookhands.(2)Noneofusknowthereason

Tomwasabsent.(3)Doyouremembertheday

youjoinedourclub?(4)Thereisabigwindow

Icanseetherailwaystation.withwhomforwhichonwhichthroughwhichTask2“介词+关系代词”引导的限制性定语从句Task3languagefocus1.strugglen.&vi.斗争；奋斗；搏斗(教材P64)WhenIstartedstudyingGerman,

itwasastruggle.当我开始学习德语时，这是一场战斗。【知识拓展】strugglefor努力争取……；为……而斗争struggleagainst/with与……作斗争struggletodosth.努力做某事struggletoone’sfeet挣扎着站起来Task3languagefocus【即学即练】单句语法填空/句型转换①Shenevergaveupandstruggled

(live)anactivelife.②Hestruggled

hisfeetanddraggedslowlyahead.③Womenarefightingforequalpayandequalwork.→Womenare

equalpayandequalwork.tolivetostrugglingforTask3languagefocus【小片段助记】Westruggleforsuccessallourlife;however,itisastruggletomakeeverydaymeaningful.Thethoughtofgivinguphauntsuswhenwefailagainandagain,butthedesireforflowersandapplauseurgesustostruggletoourfeetwhenwefalloverbeforetrouble.Task3languagefocus2.the＋比较级，the＋比较级“越……，就越……”(教材P64)Itwasexerciseforthebrain；themoreIlearntofalanguage，themoremybrainwouldgrow.这是对大脑的锻炼；我对一门语言学得越多，我的大脑就会开发得越多。Task3languagefocus[句式分析](1)the＋比较级，the＋比较级

越……，就越……(2)themore...,theless...越……，越不……themore...thebetter...……越多，……就越好Themoreheexplained,themoreconfusedIbecame.他越解释我就越迷惑。Asisknowntous，thelazierapersonis,themorethingsheneedstodotomorrow.众所周知，一个人越懒，

他明天要做的事情就越多。Task3languagefocus【即学即练】完成句子①

，themoreequippedforlifeyouare.你学到的知识越多，你就为生活准备得越好。②

youpay,

youwillgain.付出越多，收获就越多。③

youtalked,

attentionhepaidtoyou.你说得越多，他越不注意听你讲。ThemoreyoulearnThemorethemoreThemorethemoreDescribeoneofyourfavoritememorieswithrestrictiverelativeclauses.Usetheexpressionsbelowtohelpyou.Oneofmyfavoritememoriesisofthetimewhen...Theplacewhereithappenedwas...Thatwasthedaywhen...Thereasonwhy...OneofmyfavouritememoriesisofthetimewhenIfirstusedEnglishbym