It用法看过来it是中性的第三人称单数代词,其主格和宾格形式相同,在句中可充当主语、宾语和表语。还可做形式主语和宾语,来替代不定式、动词的ing和从句。★人称代词it的用法:1).It一般指人以外的一切生物或事物。有时也指婴儿、小孩或不知性别的人。-Whereisyourcar?你的车呢?-It’sinthegarage.在车库里。Look!It’sgoingupthattree.瞧!它正往树上爬呢。Herbabyisduenextmonth.Shehopesitwillbeaboy.她的孩子该下个月出生。她希望会是个男孩。Someoneisringing.Whomightitbe?有人在按门铃,会是谁呢?2).指已知或正在发生的事实或情况。Yes,IwasathomeonSunday.Whataboutit?是的,我星期天就在家,怎么了?Stopit.Youarehurtingme.住手。你弄疼我了。IfIcanhelpit,Idon’tlikeworkinglateintothenight.(06全国卷)如果能行的话,我就不会熬到深夜了。3).指上下文内容ProfessorLeegaveusalectureyesterday.Itwasofgreatinterest.ProfessorLeegaveusalectureyesterday,whichwasofgreatinterest.昨天李教授给我们做了一个报告,很有趣。YangLiweiwasthefirstChinesetobesentupintospace.ItmadetheChineseproud.YangLiweiwasthefirstChinesetobesentupintospace,whichmadetheChineseproud.杨利伟是第一个被送入太空的中国人,这使得中国人非常自豪。SherunsthestoreverywellandIknowit.Sherunsthestoreverywell,whichIknow.她把这家商店经营的很好,这我清楚。★非人称代词it的用法。it用作无人称的主语,不指物,而表示天气、季节、时间或事物的状态。1).指时间It’searlyspring,butit’salreadyveryhot.虽然是初春,但已经很热了。Whattimeisitbyyourwatch?你表上几点了?2).-What’stheweatherliketoday?-It’sverycoldtoday.3).指距离It’sabout15minutes’walkfromheretothebar.从这儿到酒吧步行需15分钟。Howfarisitfromyourcompanytoyourhome?从你家到公司有多远?★当指示代词用1)用以明确身份It’syourmotheronthephone.是你母亲来的电话。Hello,Peter,it’sMikehere.喂,彼得,我是迈克。Hi,it’sme.嗨,是我。2)指代this、thatThisisyourplan,isn’tit?-What’sthis?-It’sabook.★it当作形式代词的用法:1).it当作形式主语的用法在英语当中,常用it来替代做主语的不定式、ing和从句,以保持句子的平衡。A.替代不定式Ittookmethreehourstofinishthework.完成这项工作花了我三个小时的时间。It’skindofyoutohelpme.你能帮我真是太好了。It’shardforustolearnEnglish.对我们来说学英语有点难。注意:It’sadjfor/ofsbtodosth.中for和of的确定一般是由前面的形容词来定的。即前面的形容词是表示人的性格、品质等特征的词,用of;其他情况下用for。B.替代ingIt’snousecryingoverspiltmilk.覆水难收。It’snogooddoingit.做这件事没有好处。It’swellworthreadingthebook.这本书很值得一读。It’sgreatfunclimbingmountainsonrainydays.雨天爬山真有趣。注意:ing一般都是亲自做主语,在下列句式中才用it做形式主语。It’snogood/use/wellworthdoingsth.It’snotanygood/usedoingsth.It’sfundoingsth.C.替代从句It’safactthatthepopulationisstillincreasing.人口仍在增长是个事实。It’scertainthattheywillcomeheretoseeus.他们要来看我们这是一定的。It’ssaidthatheisgoingabroadwithhisparents.据说他要随他的父母去国外。Itseemsthatitisgoingtorain.天看起来好像要下雨了。常用it代替从句的句式有:It’sadj/nthat-clause.It’ssaid/believed/known/reported/supposed/orderedthat-clause.据说/认为/知/报道/认为/命令…..Itseems/appearsthat-clause.看起来好像…..Itturnsoutthat-clause.结果是……Ithappensthat-clause.碰巧……Itoccurstosbthat-clause.Itflasheson/uponsbthat-clause.某人想到……Itstrikessbthat-clause.使某人觉得……★it用作形式宾语A.find/make/feel/consider/think+it+adj/n+todo/ving/that-clause.IfinditdifficulttolearnEnglish.我发现学英语很难。Ithinkitnogooddoingtoomanythingsforchildren.我认为过多的包揽孩子的...