it用法总结ppt课件.ppt

Theuseof“It”*㈠,主要指刚提到 的事物,以避免重复: Ningboisabeautifulcity,isn’tit?(未知性别的婴儿或孩子):Isthisyourdog?No,itisn’:Itwasagreatsurprisetomewhenhedid athinglikethat.*,而泛指天气、时间、环境等,称为非人称的it::Itisalovelyday,isn’tit?:Itwasnearlymidnightwhenshecameback.:Itwasveryquietinthecafé.:Itishalfanhour’swalktothecitycentre.*㈡.引导词it+被强调部分+that...使用该句型有以下几点请注意:①强调句的谓语is或was永远用单数. ItwasyesterdaythatImetyourfatherinthestreet.②不管被强调部分是哪种状语,只能用that连接,不得使用where、.*③被强调部分为人时,可用who(主格或宾格)和whom(宾格)代替that,用that也行。Itwasyourfatherthat/whom/)ItwasIthat/whometyourfatherinthestreetyesterday.④强调句中也要注意主谓一致、人称一致和否定转移的问题。Itistheywhoareourfriends. Itwasnotuntilteno'clockthatwegothomelastnight.*⑤注意不要混淆强调句和其他从句。Itiswas…that…为强调句标志,去掉后仍可组成一个完整的句子,只是没被强调,而其他从句一般不具备这一特征。比较:1)Itwasteno'。2)Itwasatteno'。要点点拔第一句不是强调句,when不可改为that,因为去掉itwas和that后,只能组成“Wegothometeno'clocklastnight.”这样一个不完整的句子;第二句是强调句,that不可改为when.*+被强调部分+that...该句型也是强调句型。主要用于强凋时间状语,译成汉语"直到...才...",可以说是not...until...的强调形式。ItwasnotuntilshetookoffherdarkglassesthatIrealizedshewasafamousfilmstar.=NotuntilshetookoffherdarkglassesdidIrealizeshewasafamousfilmstar.=Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.*)Itis+adj.+that从句①Itisclear(obvious,true,possiblecertain....)that.....“清楚(显然,真的,肯定...)” Itisveryclearthathe’sroundandtalllikeatree.②.Itisimportant(necessary,right,strange,natural...)that...that后的从句中要用虚拟语气(should+动词原形),should可以省去,建议记住该句型中的形容词。Itisimportantthatwe(should)learnEnglishwell.*2).Itis+v-ed+that从句①Itissaid(reported,learned....)that...据说(据报道,据悉...)“。etoBeijing. ②.Itissuggested(ordered/demanded/manded...)that...主句中的过去分词是表示请求,建议,命令等词时,that 后的从句要用虚拟语气(should+动词原形),should可以省;常译为“据建议;有命令...) Itissuggestedthatthem