高中英语必修三第四单元语法课件(主语从句)培训讲学.ppt

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1、高中英语必修三第四单元语法课件(主语从句)Thathewillpasstheexamiscertain.Whetherhewillpasstheexamisuncertain.Whowillgomakesnodifference.Whatweneedismoretime.WhichbookIshallchoosehasn’tbeendecided.找出下列句子中的主语从句主语从句考点归纳主语从句连接词的使用主谓一致（谓语动词单数?复数？）形式主语结构主语从句的语序、时态合作探究例1.Whenwillhecomeisnotknown.规律一、主语从句一律用陈述语序，即主

2、语在前，谓语在后。主语从句的时态受主句的时态影响和限制。正：Whenhewillcomeisnotknown.例2.Thathefinisheshisworkontimewasagreatsurprisetousall.一、主语从句的语序、时态正:Thathefinishedhisworkontime例3.Hewillnotcometothemeetingthiseveningistrue.正：Thathewillnotcometothemeetingthiseveningistrue.规律二、连词that在主语从句中无实际意义，但不能省略。二、主语从句连接词的使用例

3、4.Ifthemeetingwillbeputoffhasnotbeendecidedyet.正：Whetherthemeetingwillbeputoffhasnotbeendecidedyet.规律三、whether可以引导主语从句，放在句首，但if不能功能连接词不作成分that,whether作主、宾、表、what,who,whom,wh+ever作定语which,whose,作状语when,where,why,howUsageoftheConjunctions规律四、缺什么补什么_____________________isknowntoall.(地球是圆的)

4、________________________isthatcomputerscanrecognizehumanvoices.(让我们感到惊讶的是电脑能分辨人的声音。)ThattheearthisroundWhatsurprisesusthat和what的区别什么不缺用thatwhat“……的事（物，时间，地点，人物等）不同概念。_____________(任何一个来的人)iswelcome.______________(任何我拥有的东西)isyours.______________(你想要的任何一个)isyours.Nomatterwhobreakstherulew

5、illbepunished.（T/F）whatever=anythingthatwhoever=anyonewho疑问词-everWhoeverWhateverIhaveWhoevercomesWhicheveryouwant例5.Whenhewillcomeareapuzzle.正：Whenhewillcomeisapuzzle.规律五、主语从句的谓语动词多用单数第三人称形式。三、主语从句中的主谓一致Thathewillpassalltheexamsiscertain.WhichbookIshallchoosehasn’tbeendecided.Howshekeep

6、shealthyisasecret.注意WhatIwantisthebook.WhatIwantaresomebooks.结论：what引导的从句做主语时，谓语的单复数取决它的________.观察下列两个句子的谓语，并尝试得出结论表语Thatwecan’tgotoseethemovieisapity.Itisapitythatwecan’tgotoseethemovie.形式主语四、主语从句中的形式主语It+be+名词＋that从句Itisapitythat…很遗憾…Itisafactthat…事实是…形式主语常用句型It+be+形容词＋that从句Itisobvi

7、ousthat……显然...Itisimportantthat….重要的是…It+be+过去分词＋that从句Itissaidthat...据说...Itisknownthat…众所周知…It+不及物动词+thatIthappenedthat...碰巧……Itoccurredtomethat…我突然想起…1.______________(是个惊喜)thathechangedhismind.2._______________(据推测)thatshewillcomebacktomorrow.3.____________(有必要)thatweshouldl