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《it用法总结ppt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、Theuseof“It”1㈠1.it作人称代词1.1.it的最基本用法是作人称代词,主要指刚提到的事物,以避免重复:Ningboisabeautifulcity,isn’tit?1.2.也可以指动物或婴儿(未知性别的婴儿或孩子):Isthisyourdog?No,itisn’t.1.3.也可指抽象事物:Itwasagreatsurprisetomewhenhedidathinglikethat.22.非人称代词itit有时并不指具体的东西,而泛指天气、时间、环境等,称为非人称的it:2.1.指天气:Itisalovelyday,isn’tit?Itisabitwindy.2.2
2、.指时间:Itwasnearlymidnightwhenshecameback.2.3.指环境:Itwasveryquietinthecafé.2.4.指距离:Itishalfanhour’swalktothecitycentre.3㈡.引导词it1.Itis+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、when等连词.ItwasinthestreetthatImetyourf
3、atheryesterday.4③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/whoImetinthestreetyesterday.2)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.5⑤注意不要混淆强调句和其他从句。Itiswas…that…
4、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'clockwhenwegothomelastnight.我们昨晚到家时已十点了。2)Itwasatteno'clockthatwegothomelastnight.我们昨晚是在十点到家的。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.62.Itisnotuntil+被强调部分+that...该
5、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.73.it用作形式主语3.1代替主语从句1)Itis+
6、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.82).Itis+v-ed+
7、that从句①Itissaid(reported,learned....)that...据说(据报道,据悉...)“。ItissaidthathehascometoBeijing.②.Itissuggested(ordered/demanded/insisted/commanded...)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...)Itissuggestedt
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