高中英语Module2DevelopingandDevelopedCountriesPeriod3Grammar语法专题课+情境互动课型课件外研版.ppt

Module2DevelopingandDevelopedCountriesGrammar,1.Learntousethelinkwords:but/however;although/while.2.Learnsomesentencestructures.,Learningaims,Findthesesentenceswithlinkwordsandanalyzethestructures.Thereportshowsthatwearemakingprogressbutthatweneedtomakegreaterefforts.Heisthin,butheisstrong.InthelasttenyearsinChina,150millionpeoplemovedoutofpoverty.However,thechallengesarestillgreat.Hesaidthatitwasso;hewasmistaken,however.,Leading-in,一、but（但是，然而)but作为并列连词，在意义上起转折作用。but前后的两个句子或短语在意义上形成鲜明对照。but用来连接两个分句或两个较长的短语时，but前面一般要加逗号。1.连接两个并列分句Honeyissweet,butthebeestings.蜜甜须防蜂蜇。,2.连接两个并列成分Theyseethetreesbutnottheforest.（连接宾语）Henolongerfeltdisappointed,buthappyandhopeful.（连接表语）3.后接状语Hetriedtosaveit,butinvain.4.作介词，意思是“除了”，谓语与前面名词一致。AllthepeoplebutTomgotothecinemaeverySundays.除Tom之外所有人每周日都去看电影。,1.(2015北京高考)Heisashyman,heisnotafraidofanythingoranyone.A.soB.butC.orD.as【解题关键】句意:他是一个害羞的人,但是并不害怕任何事和任何人。根据句意可知前后句表示转折,因此选择but。,【高考链接】,2.（2013大纲版全国卷）IwasgladtomeetJennyagain,_Ididntwanttospendalldaywithher.A.butB.andC.soD.or【解题关键】句意：我很高兴再次见到珍妮，但是我不想一整天都和她在一起。根据句意可知前后之间是转折关系，所以选A。,二、howeverhowever意为“可是，然而，尽管”，比but的意味弱，通常用作连接性状语。其位置可以在句首、句末或插入句中。当其被用来对照两个分句时，中间需要有一个逗号；当它被用作句子的插入语时，则前后应各有一个逗号。However，weneednotdothatnow.可是，我们现在不需要做那个。,Hisfriends，however，hadotherideas.然而，他的朋友还有其他想法。,【拓展】however也可用作连词，意为“不论怎样”，引导让步状语从句=nomatterhow。构成：however+adj./adv.+主语+谓语Howevertiredyoumaybe,youmustdoit.不管你有多累，你非做不可。Illcome,howeverbusyIam.我不管怎么忙都会来的。,【辨析】but与howeverbut和however两者都意为“但是,然而”，但是两者的用法不同。(1)however既可以放在句首也可以放在句中，还可以放在句末，并且一般要有逗号；but常用于句中，后面不加逗号。(2)but是并列连词，表示“可是，但是”，连接两个并列分句或者并列成分，意义上构成了对比。however，表示“然而，但是”的时候是副词，不能直接连接两个分句，必须另起新句，并用逗号隔开。,1.Ireallydontlikecheese,_Iwilltryjustalittlethistime.我实在是不喜欢吃奶酪，但是这次我要尝一点。2.Itwasraininghard._,wewentouttolookfortheboy.雨下得很大。但是，我们出去寻找那个男孩。,but,However,【即学即练】,Activity1(1)Doeshowevermeanthesameasbut?(2)Whichlinkwordbeginsasentence?(3)Whichlinkwordcanjointwopartsofasentence?(4)Whichlinkwordisfollowedbyacomma?,Yes.,However.,But.,However.,butinapoorcountrypeoplehavefewclothes.,however,amuchlargerpercentageofthepopulationishomeless.,butthereisoftennomoneyformedicalcare.,however,thefamiliesarelarger.,Activity2,Lookatthelinkwordsalthoughandwhileinthesesentences.Weusethewordstocomparepeople,situationsandthings.Norwayisatthetopofthelist,whiletheUnitedStatesisatnumber7.TheUKisinthethirteenthposition,whileChinaisinthemiddleofthelist.Althoughmorethan80%ofchildrenindevelopingcountriesgotoprimaryschool,about115millionchildrenarenotbeingeducated.Althoughdevelopedcountriesgivesomefinancialhelp,theyneedtogivemuchmore.,althoughandwhile,Activity3,一、although表示“虽然，尽管”不与but连用，但可以和副词yet，still连用，表示转折。例如：Althoughheisold,yethelooksveryyoungandhealthy.although比though正式，两者基本上可以通用。但though引导的从句在句首时，从句可以倒装，而although不可以。例如：Childthough/asheis,hehelpedmealot.尽管他还是个孩子，但是他帮了我很多。,【即学即练】_hehadtowriteahistorypaper，_hecouldntfindtimetodoit.A.Although;butB.Although;/C.Eventhough;/D.Evenif;/,although不能和but连用,1.(2015湖南高考)thejobtakesasignificantamountoftime,moststudentsagreethattheexperienceisworthit.A.IfonlyB.AfterC.AlthoughD.Incase【解题关键】句意:尽管这项工作花了很长时间但大多数学生认为这个经历很值得。根据语境以及句意得知应用although引导让步状语从句。,【高考链接】,2.(2014江苏高考)Lessonscanbelearnedtofacethefuture,historycannotbechanged.A.thoughB.asC.sinceD.unless【解题关键】句意：尽管历史无法改变，但是我们可以吸取教训来面对未来。though表示转折。,二、while作从属连词，有以下几个意思：在期间，引导时间状语从句ShecalledmewhileIwasout.并列连词表示前后的对照“然而，而”（放在句中）Heisdiligentwhilehisbrotherislazy.虽然，尽管（放在句首）WhileIadmithisgoodpoints,Icanstillseehisshortcomings.,Activity4Jointhesentencesusingthewordsinbrackets.1.Developedcountriesarerich.Theydontgiveenoughfinancialhelptodevelopingcountries.(although)_,Althoughdevelopedcountriesarerich,theydontgiveenoughfinancialhelptodevelopingcountries.,2.Europehasalotofindustry.Africadoesnothavemuch.(while）_3.InsomepartsofEurope,incomesarehigh.Inotherpartstheyaremuchlower.(while)_,Europehasalotofindustry,whileAfricadoesnothavemuch.,InsomepartsofEurope,incomesarehigh,whileinotherpartstheyaremuchlower.,4.Thereispovertyinthisarea.Peoplearehappierthaninthecity.(although)_5.Somechildrenreceiveagoodeducation.Othersnevergotoschoolatall.(while)_6.Lifeexpectancyisstilllow.Ithasimprovedinthelasttenyears.(although)_,Althoughthereispovertyinthisarea,peoplearehappierthaninthecity.,Somechildrenreceiveagoodeducation,whileothersnevergotoschoolatall.,Althoughlifeexpectancyisstilllow,ithasimprovedinthelasttenyears.,【即学即练】尽管中国是一个发展中国家，但是它为世界经济的发展作出了巨大贡献。（用although,but与however翻译）_,AlthoughChinaisadevelopingcountry,itmakes,greatcontributionstothedevelopmentofglobal,economy.,Chinaisadevelopingcountry,butitmakesgreat,contributionstothedevelopmentofglobaleconomy.,Chinaisadevelopingcountry.However,itmakes,greatcontributionstothedevelopmentofglobal,economy.,.用but,however,while,although填空1.IcannotspeakRussian_mylittledaughtercan.2.Ithinktheremay,_,besomeotherreasonswedontknowabout.3.Mybrotherdecidedtogotothatdangerousplace,_Iaskedhimnotto.4.Theboyhadsaidhewouldntdoitagain,_hebrokehispromise.,while,however,although,but,Classexercises,5.Idliketohelpyou，_,myhandsarefull.6.Wouldyouliketojoininplayingfootball?Idliketo,_Ihavesomuchhomeworktodo.7.Donttalk_youreeating。8._myuncleisold,helooksverystrongandhealthy.,however,but,while,Although,1.(2014全国卷)Althoughweallowtomatoplantstogrowinthesameplaceyearafteryear,butwehave或改为yetneverhadanydiseaseorinsectattackproblems.2.（2014陕西卷高考）Werantoescapebutfortunatelyandnoonewasinjured.3.（2013陕西高考）Iwantedtogiveup,andmybutgrandfathertoldmetowaitalittlelonger.,.改错,4.Whateverhardyoutry,itisdifficulttoloseweightHo