PeriodThreeGrammar&Writing一、表示转折关系的并列连词1.butbut是连词，意为“但是”，用来引出相反意见或不同情况，常用于口语中。如：I’daskedeverybodybutonlytwopeoplecame.每个人我都请了，却只来了两个人。2.howeverhowever然而，不过。它的语气比but弱，不直接引出相反的意见，可放于句首和句中，且通常用逗号与句子其他成分隔开。如：Youwillbeluckyifheletsyougowithoutaticket.However，thisdoesnotalwayshappen.如果他不给你开罚单就让你走，那是你运气好。不过，这种事不是常有的。I’dliketogowithyou；however，myhandsarefull.我很想和你一块儿去，可是我很忙。3.whilewhile是连词，意为“却，然而”，表示对比或用于引出相反的情况。如：Youlikeplayingtennis，whileIlikereading.你爱打网球，而我爱看书。即时跟踪1用but，however或while填空(1)Iwasgoingtowriteyoualetter，butIlostyouraddress.(2)Schoolsinthenortharewellequipped，whilethoseinthesoutharepoor.(3)Theplan，however，hasprovenimpracticalatall.二、表示让步关系的从属连词1.although与though(1)这两个词意思相同，通常可以换用，但although语气较重，通常放在句首，并用于正式场合。如：I’dquiteliketogoout，(al)thoughitisabitrainy.虽然天空下着小雨，但我还是很想出去。Althoughitissnowing，itisnotverycold.虽然下着雪，但天并不是很冷。(2)though作“尽管”讲，引导的让步状语从句可以倒装，但although没有这种用法。如：Poorthoughheis，heishappy.尽管很穷，但他很开心。Childthoughshewas，theactressdrewwideaudiences.尽管这个女演员还是个孩子，却吸引了大批观众。(child前不用冠词a)(3)although只用作连词，而though除作连词外，还可用作副词，常置于句末；句子较长时，也可置于句中。如：He’sabadmanager.There’snoreason，though，todismisshim.他是个差劲的经理，然而还是没有理由免他的职。(4)although和though用作连词时不能和but连用，但可以和yet，still等连用。如：Althoughhelivesalone，yetheishappy.(＝Helivesalone，butheishappy.)虽然独自生活，但他很开心。2.whilewhile引导让步状语从句，意为“虽然；尽管”，置于句首。如：WhileIamwillingtohelp，Idonothavemuchtimeavailable.尽管我愿意帮忙，但是我没有很多时间。Whilehelikesthebighouseverymuch，hecan’taffordit.虽然他很喜欢那所大房子，但他买不起。3.asas引导的让步状语从句要采用倒装语序。从句结构为：名词/形容词/副词/动词＋as＋主语＋谓语。如：Coldasitwas，hewentonworking.尽管天气冷，可他仍继续工作。Fastasyouread，youcan’tfinishthebookinthreedays.尽管你读得快，你也不可能在三天内读完这本书。即时跟踪2用although，though，as或while填空(1)Although/Though/WhileTVhasmanybenefits，ithassomebadeffectsonpeople.(2)Proudas/thoughtheyare，theyareafraidtoseeme.(3)Hesaidhewouldcome；hedidn’t，though.(4)Idon’tbelievewe’vemetbefore，although/thoughImustsayyoudolookfamiliar.Ⅰ.用适当的连词填空1.While/Although/Thoughonlineshoppinghaschangedourlife，notallofitseffectshavebeenpositive.(2016·浙江)2.While/Although/Thoughsomepeoplearemotivatedbyaneedforsuccess，othersaremotivatedbyafearoffailure.(2016·江苏)3.Heisashyman，butheisnotafraidofanythingoranyone.(2015·北京)4.Though/Although/Whilescientistshavelearnedalotabouttheuniverse，thereismuchwestilldon’tknow.(2015·安徽)5.Idon’treallyliketheauthor，although/though/whileIhavetoadmithisbooksareveryexciting.(2014·山东)6.Weweretoldthatourroomshadn’tbeenreservedforthatweek，butfortheweekafter.(2014·广东)7.There’snowayofknowingwhyonemanmakesanimportantdiscoverywhileanotherman，alsointelligent，fails.(2013·新课标全国Ⅰ)8.IwasgladtomeetJennyagain，butIdidn’twanttospendalldaywithher.(2013·新课标全国Ⅱ)9.Atschool，somestudentsareacti...
