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《unit 4 astronomy the science of the stars grammar(学生版)》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、B3U4Grammar主语从句(实中.高一级)一.回顾:按要求完成句子,使下列宾语从句和表语从句意思完整。1.Idon’tknow(这女孩是谁)2.Heasked(什么时候他能休息)3.Thequestionis(我们能解决的)4.Itlooks(似乎要下雨了)二.概念:在复合句中作的句子叫从句。Eg:Youneedmorepractice.(主语)Whatyouneedismorepractice.(主语从句)IlikeEnglish.()WhatIlikeisEnglish.()三.连接词:1.请在下列句子中划出连接词和其所引导的主语从句。1)Thatheissti
2、llaliveisawonder.2)Whethertheywouldsupportuswasaproblem.3)WhatIwanttoknowisthis.4)Whowillgototheconcertisnotknown.5)Whichbooktheywillchooseisstillunknown.6)Whicheveryouwantisyours.7)Whenwearrivedoesn’tmatter.8)Howitwasdonewasamystery.[归纳]引导主语从句的连接词主要有(1)连接词(2)连接代词____________________whos
3、e,whoever,whatever,whom(3)连接副词,where,why,等。主语从句使用陈述语序,其通常结构为“主语从句(连接词+主语+谓语)+主语+谓语+其他成分”。练:(1)weshallbelateiscertain.(2)itwilldousharmremainstobeseen.(3)comesinfirstwillreceiveaprize.(无论谁)(4)Isayisveryimportant.(5)无论你做什么都是对的.(6)Ispendmysummerholidayisstillunknown.(哪里)四.注意事项1.it作形式主语引导主语从
4、句。Eg:1)Itisimportantthatheshouldknowaboutthis.2)It’sapitythathedidn’tcome.3)Itturnsoutthattheyfailedinthecompetition.4)ItissaidthatPresidentObamawillvisitourschoolnextweek.[归纳]有时为避免句子头重脚轻,常用it作形式主语,代替主语从句放在句首,而把主语从句置于句末。主句谓语动词常用单数形式,常用句型有①It+be形容词+that从句,如句1),It’simportant/natural/obviou
5、s/impossible/strange…that…②It+be+名词+that从句,如句2),It’sapity/afact/goodnews/awonder…that…③It+不及物动词+that从句,如句3),Itseems/appears/turnsout…that…④It+be+动词的过去分词+that从句,如句4),It’ssaid/reported/believed…that…练:1)(幸运的是)wearen’tlateforschool.2)(遗憾的是)hedidn’tcome.3)(似乎)thatyouaregoodstudents.4)(据报道)Ch
6、inahassuccessfullysentShenzhouVIspaceshipintospace.2.it作形式主语与it引导强调句的区别Eg:It’scertainthatyoumuststudyhard.(主语从句)It’sin2010thatwemetforthefirsttime.(强调句)[归纳]it作形式主语代替主语从句,主要是为了平衡句子结构,而it引导强调句则是对某一句子成分的强调,其结构是“Itis(was)+强调部分+that”练:1)奇怪的是他对这事一无所知。2)我是在北京见到了她。3.引导主语从句的连词that有时可省,有时不能省,其原则是:
7、若that引导的主语从句直接位于句首,则that不能省略;若that引导的主语从句位于句末,而在句首使用了形式主语it,则that可以省略:Thatyoudidn’tgotothetalkwasapity.(that不可省) Itwasapity(that)youdidn’tgotothetalk.(that可省)练:1)shewaschosenmadeusveryhappy.2) Itisimportantheshouldknowaboutthis.五.综合练习一)选择题1.____wantstostayinahotelhastopay
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