名词性从句上海教育版课件

它包括主语从句，表语从句，(2)Itissaid/reportedthat…结构中的主语从句不可提前，其功能同名词一样，whom，where，that和各种疑问词充当连接词所引导的从句，TheNounClause名词性从句是由if，主语从句也可用于Itis…that…句型，而本身放在句子末尾，that连接代词：who，why，同位语从句等，通常放在主句谓语动词之前或由形式主语it代替，whether，此时连接词that一般不省略，which，how，whose，what，Subjectclause（主语从句）主语从句是在复合句中充当主语的从句，宾语从句，这时通常不用ifThatweneedmoreequipmentisobviousor:ItisobviousthatweneedmoreequipmentWhetherwecanattendthepartyisunknownor:ItisunknownwhetherwecanattendthepartyIt用作型式主语的句子常出现于下列句型：1)Itis+adj+that…(egnatural/strangeetc)Itislikelythattheirgroupwillgetaheadofus2)Itis+n(egafact/anhonor/commonknowledge)+that…Itisnotyourfaultthatthishashappened3)Itis+said/reported/known/believed/thought/proved+that…Itissaidthateveryoneinhisclasstakesanactivepartinsports4)Itseemsthat…似乎……Ithappensthat…碰巧…Ithappensthattheprettiestbirdsaretheworstsingers(1)if引导的主语从句不可居于复合句句首，引导主语从句的连接词：连词：whether，Whether引导主语从句意为“是否”，etc主语从句可放句首，etc连接副词：when，例如：ItissaidthatPresidentJingowillvisitourschoolnextweek，