Unit5DiscoveringUsefulStructures課件高中英語精美課件與練習(xí)

Unit5DiscoveringUsefulStructuresClue1:ThelanguageisspokeninthecountrieswhereChineseistheofficiallanguage.Clue2:Toseetheworldinabroaderwayisthereasonwhypeoplelearnthelanguage.Clue3:IstartedtolearnthelanguageatthetimewhenIwasstillinthekindergarten.LeadinEnglish定語從句的關(guān)系副詞關(guān)系副詞先行詞句中成分where地點(diǎn)地點(diǎn)狀語when時間時間狀語why原因原因狀語關(guān)系副詞=介詞+關(guān)系代詞where(=in/at/onwhich)when(=on/during/inwhich)why(=forwhich)IstillrememberthetimewhenIfirsttravelledbyplane.Wewillneverforgettheyearwhenthe29thOlympicGameswereheldinBeijing.關(guān)系副詞when引導(dǎo)定語從句時，先行詞應(yīng)是表示時間的名詞，關(guān)系詞在從句中作時間狀語。They’llneverforgetJuly1whenHongKongreturnedtoitsmotherland.定語從句的關(guān)系副詞1.whenonwhichwhen引導(dǎo)的定語從句修飾表示時間的名詞,

如time,

morning,day,week,month,year,

date,moment等,在定語從句中時間狀語,相當(dāng)于“地點(diǎn)介詞+which”。Idon'tknowthereasonwhyhedidn'tturntohisgoodfriendforhelpyesterday.Canyoutellmethereasonwhyyoudidn'tcometohisbirthdayparty?關(guān)系副詞why引導(dǎo)定語從句時，先行詞常常為reason，關(guān)系詞在從句中作原因狀語。Therearemanyreasonswhypeopleliketraveling.定語從句的關(guān)系副詞1.whyforwhichwhy引導(dǎo)的定語從句修飾先行詞reason,在從句中作原因狀語,相當(dāng)于“for+which”。I'dliketoliveinthehousewherethereisplentyofsunshine.Youcouldgetintoasituationwhereyouhavetodecideimmediately.關(guān)系副詞where引導(dǎo)定語從句時，先行詞應(yīng)是表示具體地點(diǎn)或抽象地點(diǎn)的名詞，關(guān)系詞在從句中作地點(diǎn)狀語。ThisisthefactorywhereIworkedtenyearsago.定語從句的關(guān)系副詞3.whereinwhichwhere引導(dǎo)的定語從句修飾表示地點(diǎn)的名詞,在定語從句中作地點(diǎn)狀語，相當(dāng)于“地點(diǎn)介詞+which”。具體地點(diǎn)定語從句的關(guān)系副詞3.where抽象地點(diǎn)Where引導(dǎo)定語從句的先行詞一般是表示具體地點(diǎn)的名詞，如place,room,house,school,building，factory等。ThisistheschoolwhereIusedtostay.有的先行詞不是具體的地點(diǎn)名詞，而是抽象的地點(diǎn)名詞，如：position(位置,境地),stage(階段),situation(環(huán)境),case(情況),occasion(場合),activity,point(地步),spot(地點(diǎn)),atmosphere(氛圍)等。Thespotwheretheaccidenthappenedistheturningpointoftheroad.It'sputmeinapositionwhereIcan'taffordtotakethejob.并非先行詞是表示時間、地點(diǎn)、原因的詞時，都選用關(guān)系副詞when,where,why,而是要先判斷先行詞在從句中是做狀語還是主語賓語。定語從句的關(guān)系副詞注意Thisisthefactory

Ivisitedlastyear.visit是及物動詞，需要接賓語，thefactory放在從句中做visit的賓語，故選擇指代物的關(guān)系代詞which/that，且可以省略。Thisisthefactory

Iusedtowork.work是不及物動詞，不需要接賓語，thefactory放在從句中做地點(diǎn)狀語，故選擇指代地點(diǎn)狀語的關(guān)系副詞where或inwhich。(which/that)where/inwhich即學(xué)即練單句語法填空①Iwillneverforgetthedaysthat/which

wespenttogether.②Iwillneverforgetthedayswhenwestayedtogether.③Thereasonthat/which

heexplainedatthemeetingwasnotsound.④Thereasonwhyhewaslatewasthathemissedhistrain.⑤Keepthebookinaplacewhereyoucanfinditeasily.⑥Thisisthehousethat/which

wasbuiltbymygrandfatherfortyyearsago.ThisisthewayinwhichhestudiesEnglish.ThisisthewaythathestudiesEnglish.ThisisthewayhestudiesEnglish.因?yàn)樵谟⒄Z中沒有專門表示“方式”的關(guān)系副詞，因此，表示方式狀語時，使用inwhich=intheway(通過某種方式)，that在這里作為關(guān)系副詞，相當(dāng)于inwhich。定語從句的關(guān)系副詞4.特殊的關(guān)系副詞that當(dāng)先行詞為the/away(方式),表示方式狀語時,關(guān)系詞可以使用inwhich/that/省略.1.介詞+whom/whichThewomangeneralstillcanrememberthedayonwhichshejoinedthearmy.2.介詞短語+whom/whichThemanhasahouse,infrontofwhichisthesea.3.不定代詞或/數(shù)詞+whom/whichChinahasalotoffamouswriters,oneofwhomisLuxun.4.名詞+ofwhichShementionedamagazine,thetitleofwhichIhavewrittenonmynotebook.“介詞+關(guān)系代詞”結(jié)構(gòu)也可以引導(dǎo)定語從句。有以下幾種結(jié)構(gòu)：介詞+關(guān)系代詞1.類型1．根據(jù)定語從句中謂語動詞的搭配習(xí)慣(即固定短語)來選擇。YesterdaywevisitedtheWestLakeforwhichHangzhouisfamous.(befamousfor...“因……而出名”)2．根據(jù)先行詞的搭配習(xí)慣(約定俗成，不一定是短語)來選擇。Thisisthecamerawithwhichheoftentakesphotos.(withthecamera“用照相機(jī)”)I‘llneverforgetthedayonwhichIjoinedthearmy.(ontheday“在那一天”)3．根據(jù)句子的意思來選擇。Mycomputer,withoutwhichIcan'tsurftheInternet,brokedownyesterday.4．表示“所有”關(guān)系或“整體中的一部分”時，通常用介詞of。Ihavetenbooks,halfofwhichwerewrittenbyMoYan.Theoldmanhastwosons,bothofwhomarelawyers.介詞+關(guān)系代詞2.介詞的選用當(dāng)關(guān)系代詞在定從中作介詞的賓語時，通常用“介詞＋關(guān)系代詞”引導(dǎo)定從。如果指人，用“介詞＋whom”；如果指物，用“介詞＋which”。在定語從句中，有一些含介詞的短語動詞不可拆開使用，如lookafter、lookfor等不能把介詞移至which或whom之前。介詞+關(guān)系代詞3.注意Thebabieswhomthenursesarelookingafterareveryhealthy.(√)Thebabiesafterwhomthenursesarelookingareveryhealthy.(×)定語從句的分類限制性定語從句非限制性定語從句限制性定語從句是指先行詞在意義上不可缺少的定語。非限制性定語從句和主句關(guān)系不很密切，只是對先行詞做些附加說明。如果去掉，主句的意思就不完整或者失去意義。如果去掉，主句的意思仍然清楚。這種從句和主句關(guān)系十分密切，寫時不用逗號分開。這種從句，寫時往往用逗號隔開。從句修飾先行詞，關(guān)系詞在從句中做成分，且在從句中作賓語時可以省略；I'llneverforgettheday(that)wespenttogether.從句修飾先行詞或者前面的整個句子，或其中一部分。Hesuddenlyfellill,whichkepthimfromschool.可以用that引導(dǎo)；Thatistheverytoolthatarelookingfor.不可以用that引導(dǎo)，主句和從句要用逗號隔開；Hisdog,whichhelikedverymuch,diedyesterday.省去定從則句子意思不完整。從句只是作為主句意義的補(bǔ)充，可以省去。即學(xué)即練單句語法填空1．Thedayswhentheytravelledtogethermeantalottohim.2．Nobodyknowsthereasonwhyshedidn'tgototheparty.3．Wevisitedthehousewherethefamousscientistoncelived.4．ThecarwhosewindowgotbrokenintheaccidentbelongstoMr.Brown.即學(xué)即練單句語法填空5．TheSmithshavetwochildren,bothofwhomworkinNewYork.6．MissLiuisanexcellentteacherfromwhomIhavelearntalot.7．Wehavecometoapointwhereeveryonehasdifferentopinionsanditisdifficulttoreachanagreement.即學(xué)即練用定語從句合并句子1．Ilovemyhometown.Ifeelproudofit.→Ilovemyhometowno