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1、语法辅修刘爽2Strength&courageIttakesstrengthtofitin.Ittakescouragetostandout.Ittakesstrengthtofeelafriend'spain.Ittakescouragetofeelyourownpain.Ittakesstrengthtohideyourownpain.Ittakescouragetoshowthem.Ittakesstrengthtosurvive.Ittakescouragetolive.适应环境需要力量。与众不同需要勇气。感觉朋友的
2、痛需要力量。感觉自己的痛需要勇气。隐藏自己的痛需要力量。展示自己的痛需要勇气。生存需要力量。生活需要勇气。It作形式主语动词不定式，动名词或主语从句作主语时，通常把它们放在谓语动词前，而用it作形式主语，放到句首。8/3/2021It作形式主语1.It+be+形容词+主语从句ItisuncertainwhetherhecancometoJenny’sbirthdaypartyornot.8/3/2021It作形式主语2.It+be+名词词组(+forsb.)+主语从句这类名词有：afact,apity,ashame,anho
3、nor，aquestion等。It’sapitythatyoumissedtheexcitingfootballmatch.Itremainsaquestionwhetherhewillcomeornot.8/3/2021It作形式主语3.It+be+过去分词+主语从句这类过去分词有：announced,believed,expected,hoped,decided,reported,said,shown等。Itisreportedthat16peoplewerekilledintheearthquake.Itisnotde
4、cidedwhowillgivetheoperationtothepatient.8/3/2021It作形式主语4.It+不及物动词(seem,appear,happen,occur等)+主语从句Itseemedthathedidn’ttellthetruth.IthappenedthatIwasoutwhenhecalled.It never occurred to me that I would travel toAmerica.It appears that they won'tbe able to come atal
5、l.8/3/2021It作形式主语5.It+be+形容词+（forsb.）+动词不定式常用形容词easy,difficult,hard,important,possible，wise等作表语It’snecessaryfortheyoungtomastertwoforeignlanguages.Itisunwisetogivethechildrenwhatevertheywant.8/3/2021It作形式主语6.It+be+形容词+ofsb.+动词不定式形容词：kind,nicestupid,clever,foolish,p
6、olite,impolite,silly,selfish,considerate等It’sverykindofyoutohelpmewiththework.=Youarekindtohelpme.Itseemedselfishofhimnottosharehisdictionarywithothers.=Heseemedselfishnottosharehisdictionarywithothers.It作形式主语7.It+be+名词词组+动词不定式，如：Itisnotagoodhabittostayuptoolate.8/
7、3/2021It作形式主语8.It+be+名词或形容词+动名词，名词和形容词：good,nogood,nouse,awasteof,useless,senseless,nohope,hopeless等It’sawasteoftimetalkingtoheranymore.Itisnousearguingaboutthematterwithhim.8/3/2021It作形式主语9.It+take(sb.)+时间（金钱）+动词不定式Ittooktheworkersalmostthreeyearstofinishbuildingt
8、hedam.Itwilltakeawholedaytogettothetopofthemountainonfoot.8/3/2021练习题1.Infact，isahardjobforthepolicetokeeporderinanimportantfootballmatch.A.thisB
