2017高考英语总复习 第2部分 语法专项突破 第7讲 名词性从句课件

第七讲名词性从句第二部分第七讲词单数变复主语从句1．引导主语从句的连接词：连接词that,whether;连接代词what,who,whose,whatever,whichever,whoever等；连接副词when,where,why,how。(2014·陕西高考语法和词汇知识)Whenthedelayedflightwilltakeoffdependsmuchontheweather.延迟的飞机何时起飞在很大程度上取决于天气。Thattheywereintruthsisterswasclearfromthefacialsimilaritybetweenthem.从她们的面貌相似度就能清楚地看出是亲姐妹。Whatstruckmemostinthemoviewasthefather’sdeeploveforhisson.影片中最让我感动的是父亲对他儿子深厚的爱。[易错警示]whether与if引导主语从句的区别主语从句位于主句谓语动词前，表“是否”,只能用whether,不可用if引导；若用it作形式主语，则if与whether可互换。Whetherwecanhavecleandrinkingwaterliesinwhateffectivemeasureswillbetakenbythegovernmentaboutwaterpollution.我们能否有干净的饮用水依赖于政府将采取什么样的有效的措施处理水污染问题。Itremainstobeseenwhetherornotthisideacanbeputintopractice.这一想法能否付诸实践还有待观察。2．主语从句一般放在句首，但常用it作形式主语，而将主语从句移到句子的末尾。常见的句型：(1)It＋be＋形容词(necessary/likely/important/certain等)＋that从句(2)It＋be＋名词(短语)(apity/ashame/nowonder等)＋that从句(3)It＋be＋过去分词(said/told/reported/decided等)＋that从句(4)It＋不及物动词(seem,appear,happen,matter等)＋that从句It’snosurprisethatourteamhaswonthegame.我们队获胜一点都不令人吃惊。ItisdecidedthatthemeetinghasbeenputofftillnextMonday.会议被推迟到下周一召开已经定下来了。词单数变复宾语从句1．引导宾语从句的连接词：连接词that,whether,if;连接代词what,who,whose,whatever,whichever,whoever等；连接副词when,where,why,how,从句用陈述语序。Wepromisewhoeverattendsthepartyachancetohaveaphototakenwiththemoviestar.我们许诺，任何参加这个聚会的人都有跟那个电影明星合影的机会。2．it作形式宾语的宾语从句。(1)一些动词后的宾语从句有宾语补足语时，则需要用it作形式宾语，而将that引导的宾语从句后置。常见的这类动词有：find,feel,think,consider,believe,guess,suppose,make等。Hehasmadeitclearthatthemeetingwillnotbepostponed.他清楚地表明会议不会被推迟。(2)动词hate,like,dislike,appreciate,enjoy等表示“喜欢”“厌恶”的动词以及一些动词短语seeto,dependon,relyon等常用it作形式宾语，而将宾语从句后置。Ishallseetoitthatheistakengoodcareofwhenyouareabsent.你不在的时候，我负责把他照顾好。词单数变复表语从句1．引导表语从句的连接词：连接词that,whether;连接代词what,who,whose,whatever,whichever,whoever等；连接副词when,where,why,how,从句用陈述语序。Jerrydidnotregretgivingthecommentbutfeltthathecouldhaveexpresseditdifferently.杰里不后悔给出评论，但是觉得自己本来可以用不同的方式来表达的。2．asif/asthough引导的表语从句。asif/asthough引导的表语从句常跟在be动词，seem,look,taste,sound,feel,appear等动词之后。Thethicksmogcoveredthewholecity.Itwasasifagreatblackblankethadbeenthrownoverit.厚重的烟雾覆盖着整个城市。好像把一个厚厚的黑色的毯子扔到它的上面。3．because,why引导的表语从句。because,why也可引导表语从句，但because引导的表语从句，主语不能是reason或cause(该结构常用that引导)。常用于以下句型：This/Thatiswhy...这/那是……的原因。This/Thatisbecause...这/那是因为……Thereasonwhyhedidn’tpasstheexamwasthathewastoocareless.他没有通过考试的原因是他太粗心了。词单数变复同位语从句1．同位语从句通常用that引导，that无词义也不作成分，但是不能省略，从句用陈述语序。同位语从句还可用whether,when,where,why,how等引导。2．接同位语从句的常见名词：fact,news,idea,truth,hope,problem,information,belief,thought,doubt,promise,question等。Ihavenoideawherethejournalistcouldhavegothisinformationfrom.我不知道那个记者从哪里得到的消息。Ⅰ单句语法填空1．(2016·天津十二区县联考)Thereisastrongpossibility____________manwillmainlydependonsolarenergyinthefuture.2．(2016·江西九江市模拟)Thereisapopularview____________incitystrangersarelesslikelytohelpanelderlyperson.thatthat3．(2016·福建大田一中模拟)—Lilyisoftenabsentfromschool.—Yes,sheis.That’s____________sheisinpoorhealth.4．(2015·重庆高考单项填空)Wemustfindout____________Karliscoming,sowecanbookaroomforhim.5．Itisimportant____________weshouldkeepcalmwhenwearefacingdifficulties.6．(2016·浙江临海调研)____________parentssayanddousuallyhasalife­longeffectontheirchildren.becausewhenthatWhatⅡ单句改错1．TheteacherbegantotalktousabouttheFrenchlanguage,sayingitwasthemostbeautifultongueintheworld,andwhatwemustkeepitamongusandneverforgetit.____________________2．Everyoneisdifferentandthatiswhichmakesourworldmuchbetter.____________________what→thatwhich→what3．—WhathasmadeJohnlooklikelackingsleep?—Becausehehadtoprepareforthecomingexamandstayeduplastnight.____________________4．Itisannouncedthatbigprizeswillgotowhomeverfinishestheassignmentontime.____________________5．Whatimpressesmemostiswheneverheappearsinfrontofothers,hewearsasincereandcharmingsmile.____________________whenever前加thatBecause→Thatwhomever→whoever