主语从句课件

whom，whether例:(1)Thathewillwiniscertain(2)Whetherhe‘lljoinusinthediscussionisofgreatimportance2)连接代词:who，1主语从句的连接词1)连接词:that，通常放在主句谓语动词之前或由形式主语it代替，whoever，why，howmany，howmuch，whichever例:(1)Itisclearwhoisafraidofhavingachangeinlandownership(2)WhatIndianeedsisalawtomakelandownershipfairer3)连接副词:when，whatever，which，TheSubjectClauses主语从句是在复合句中充当主语的从句，howlong，what，how，而本身放在句子末尾，howsoon，whose，where，howoften例:(1)Whenwe’llstarttomorrowwillbetoldsoon(2)Wherewecanbuyoxenissomethingweneedtofindout(3)Whyhecamehereisnotknown(4)Howwecanprotectthegrainfromdampneedstobediscussed主语从句三要素hebecameagreatscientistisknowntousallIswhatyoutoldmereallytrue?谓语动词用单数从句用陈述语序不能省略关联词Notice:WhatweneedmostarebooksHow用it作形式主语的结构(1)(1)Itis＋名词＋从句Itisafactthat…事实是…Itisanhonorthat…非常荣幸Itiscomm，