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时间:2020-08-02
《语法2雅思写作复杂句课件.ppt》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、EnglishsentencestructureComplexsentences名词性从句主语从句表语从句宾语从句同位语从句主语从句(SubjectClause)定义:在复合句中充当主语的句子叫做主语从句.(1)Thathefinishedwritingthecompositioninsuchashorttimesurprisedusall.(2)Whetherwewillgoforanoutingtomorrowremainsunknown.(3)Whowillbeourmonitorhasn'tbeendecidedyet.(4)Whom
2、wemuststudyforisaquestionofgreatimportance.(5)Whatcausedtheaccidentremainsunknown.(6)Whateveryoudidisright.(7)Whosewatchwaslostisunknown.(8)Whatweneedistime.(9)Whatweneedaregooddoctors.小结:(1)引导主语从句连词有that,whether,who,what,whatever等(2)连词位于句首不能省略(3)主语从句大多数情况下视为三单,但也有例外,如例9为了防
3、止句子头重脚轻,通常把形式主语it放在主语位置,真正主语搁置于句末(1)Itis+名词+从句Itisafactthat…事实是…Itisanhonorthat…非常荣幸Itiscommonknowledgethat…是常识(2)itis+形容词+从句Itisnaturalthat…很自然…Itisstrangethat…奇怪的是…(3)it+不及物动词+从句Itseemsthat…似乎…Ithappenedthat…碰巧…(4)itis+过去分词+从句Itisreportedthat…据报道…Ithasbeenprovedthat…已证实…虚
4、拟语气:主语从句形容词为necessary,important,impossible,strange,natural,essential时,在“It+be+形容词或过去分词+主语从句”中,主语从句要虚拟。Itisnecessarythattheproblem(should)bediscussedatonce.立刻讨论这个问题很有必要。Itisstrangethathe(should)havesomanyfriends.太奇怪了,他有那么多的朋友。表语从句:表语从句放在连系动词之后,充当复合句中的表语。引导表语从句的关联词的种类:1.可接表语从
5、句的连系动词有be,look,seem,sound,appear等。Chinaisnolongerwhatsheusedtobe.今日的中国不再是过去的中国了。Thequestionremainswhethertheywillbeabletohelpus.问题还是他们能否帮我们。Atthattime,itseemedasifIcouldn'tthinkoftherightword.当时,我似乎怎么也想不出一个恰当的字眼来。2.从属连词whether,as,asif/though引导的表语从句。Helookedjustashehadlooked
6、tenyearsbefore.他看起来还与十年前一样。Itsoundsasifsomeoneisknockingatthedoor.听起来好像有人在敲门。3.because,why引导的表语从句。That'sbecausehedidn'tunderstandme.那是因为他没有理解我。(That'sbecause…强调原因)That'swhyhegotangrywithme.那正是他对我生气的原因。(That'swhy…强调结果)what引导的主语从句表示结果或名词reason作主语时,后面的表语从句表示原因时要用that引导,不宜用beca
7、use.ThereasonwhyIwassadwasthathedidn'tunderstandme.我难过的原因是他没有理解我。4.连接代词who,whom,whose,what,which,whoever,whatever,whichever连接副词where,when,how,whyTheproblemiswhowecangettoreplaceher.问题是我们能找到谁去替换她呢。Thequestionishowhedidit.问题是他是如何做此事的。Thatwaswhatshedidthismorningonreachingthea
8、ttic.那就是她今晨上了阁楼干的。5.从属连词thatThetroubleisthatIhavelosthisaddress.麻烦是我把他的地址丢了。6.使用虚拟
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