语法专题：总结代词it的用法并模拟考场回顾湖南代词考点分布It的用法替代词不定代词其他代词2004年21题2005年反身代词332006年26题2007年27题2008年??一：It最基本的用法是人称代词，1.主要代表刚提到的同一个东西以避免重复。Lookatthatcar.It’sgoingmuchtoofast.Whereisthecarkey?----Iputitinyourdrawer.2.也可以代表抽象的东西。It’sallmyfault.3.也可以指动物或未知性别的婴儿。Whatabeautifulbaby，isitaboy?Howaboutthebaby?----I’lltakecareofit.4.还可代表一个彼此都知其何所指的东西。Wheredoesithurt?Youhavesavedmylife.Ishallneverforgetit.二：It用作非人称代词：代替指示代词1.It可以表示“是谁（在某处或做某事）“Who’sthat?”“It’sme.”It’syourmotheronthephone.“Why,it’syou!”shecried.2.It还可以用来泛指某件事Isn’titawful!Itdoesn’tmatter.3.it有时并不指具体东西，而指天气、时间、环境、距离等，称为非人称代词it.It’sraining.It’sTuesdaytoday.It’squiethere.It’stwomilestothebeach.三：It作形式主语有下面几种类型：1．be+形容词+不定式eg:It’sbettertobeearly.2．be+名词+不定式eg:Itwashisdutytotakecareoftheorphans.3．be+介词短语+不定式eg:It’sbeyondmetosaywhy.4．It+及物动词+宾语+不定式eg:Itmakesmesicktothinkaboutit.5．be+名词+动名词eg:It’snogoodstandinghereinthecold.6．be+形容词+动名词eg:It’shelplesstryingtoconvinceher.7．be+形容词+of/forsb.+不定式eg:It’sniceofyoutosayso./It’seasyforhimtolearnEn.8.其他结构+动名词eg:Itdoesn’tmatterwaitingafewmoredays.四：It作形式主语that从句作真正主语有下面几种类型：it+be+形容词+that从句：eg:Itisnaturalthattheyshouldhavedifferentviews.it+be+名词+that从句:eg:It’sashamethatyou’resick.it+动词（+宾语）+that从句eg:Ithappenedthatshewasn’tin.eg:Itneveroccurredtomethatperhapsshewaslying.It+动词的被动语态(said/believed/thought/expected/reported/known+that从句eg:It’ssaidthattherehasbeenanearthquakeinIndia.五：It作形式主语，跟其他从句作真正主语的用法：1）it+be+形容词+从句：Itisnotcleartomewhyhebehavedlikethat.2）it+be+名词+从句:It’sapuzzlehowlifebegan.3）it+动词（+宾语）+从句Itdoesn’tmattermuchwherewelive.Itmakesnodifferencewhetherwegobytrainorbyboat.4）it+动词的被动语态+从句Itisnotdecidedwhowilleditit.5）it+动词be+that从句Itcouldn’tbethattheywereinterestedinhim.六：it作形式宾语:it可以代表不定式：Shefounditdifficulttoconvincehim.Hefeltithisdutytotakecareofthem.it代表that引导的从句：Itookitforgranted(that)youwouldbecomingit代表由连接代（副）词引导的名词性从句:Hehasn’tmadeitclearwhenheiscomingback.Theyhaven’tmadeitknownwherethemeetingistotakeplace.it用于表