高三英语一轮复习 模块九第三单元.doc

用心爱心专心一、名词性从句名词性从句相当于名词可分别在句中作主语、表语、宾语和同位语。可分为主语从句、表语从句、宾语从句和同位语从句。从属连词that：在从句中不充当任何成分也没有任何意思只起连接作用有时可以省略从属连词ifwhether：在从句中不充当任何成分有意义不可以省略连接代词whowhoeverwhomwhomeverwhichwhicheverwhatwhateverwhose：在从句中充当成分有意义不可以省略连接副词wherewhenwhyhow：在从句中充当成分有意义不可以省略一、主语从句１.由从属连词引导的主语从句：①Whetherthecountryshouldbuildanuclearpowerstationissomethingwemustdiscuss.那个国家是否应该建立核电站……②Thatlighttravelsinstraightlineisknowntoall.光以直线传播….２.由连接代词引导的主语从句：①Whatweneedismoretime.我们所需要的是……②Whicheverbookyouchoosedoesn’tmattertome.无论你选哪本书……３.由连接副词引导的主语从句：①Whentheplaneistotakeoffhasn’tbeenannounced.飞机什么时候起飞……③Howmuchwaterisflowingcanbemeasuredeasily.水的流量是多少……4.关于形式主语it①It+be+形容词+that-从句Itisnecessarythat…有必要……Itisimportantthat…重要的是…Itisobviousthat…很明显……Itislikelythat….很可能②It+be+-ed分词+that-从句Itisbelievedthat…人们相信……Itisknowntoallthat…众所周知…Ithasbeendecidedthat…已决定……③It+be+名词+that-从句Itiscommonknowledgethat………是常识Itisasurprisethat…令人惊奇的是……Itisafactthat…事实是……可应用于此句型的名词还有fact/shame/honor/question/pity等。④It+不及物动词+that-分句Itappearsthat…似乎……Ithappensthat…碰巧……Itoccurredtomethat…我突然想起……二、表语从句可以接表语从句的连系动词有belookremainseem等。Theproblemisthatmillionsofpeopledieofillnessescausedbysmoking.……数百万人死于由抽烟引起的疾病Thequestionremainswhetherwecanwinthegame…..我们是否能赢得这次比赛值得注意的是：1.表语从句的表现形式除了用从属连词连接代词和连接副词引导以外还可以由asasifasthough引导.Itlooksasifitisgoingtorain.好象要下雨了。2、另外还要注意以下常用的两种结构：Thereasonwhy…isthat…(而不用because)It(ThisThat)isbecause…Thereasonwhyhewasdismissedisthathedidn’tworkhard.他为什么被开除是因为他工作不努力。三、同位语从句同位语从句一般由thatwhether等连词引导常放在advicedoubtfacthopeideainformationmessagenewsorderpossibilityproblemquestionreasontruthwordsugges