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时间:2021-04-14
《最新“it”用法总结(经典版)-[全国通用]教学讲义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、“it”用法总结(经典版)-[全国通用]㈠1.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.2.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.2.Itisnotuntil+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.=Notuntilsheto
3、okoffherdarkglassesdidIrealizeshewasafamousfilmstar.=Ididn’trealizeshewasafamousfilmstaruntilshetookoffherdarkglasses.3.it用作形式主语3.1代替主语从句1)Itis+adj.+that从句①Itisclear(obvious,true,possiblecertain....)that.....“清楚(显然,真的,肯定...)”Itisveryclearthathe’sroundandtalllikeatree.②.Itisimportant(necessary,r
4、ight,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...)“。 ItissaidthathehascometoBeijing.②.Itissuggested(ordered/demanded/insisted/commanded...)that..
5、.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...)Itissuggestedthatthemeeting(should)beputoff.3).Itisapity(ashame...)that...that后的从句一般用虚拟语气(should+动词原形),should可省去.表示出乎意料,常译为“竟然”。没有这种意义时,则不用虚拟语气。Itisapitythatsuchathing(should)happeninyourclass.Itisapitythatheisill.4).
6、①Itistime(abouttime,hightime)that...该句型中that后的从句应该用虚拟语气,值得注意的是常用过去时态表示虚拟.常译为"是(正是)...的时侯..." Itistimethatchildrenwenttobed.②Itisthefirst(second...)timethat...“是第一(二)...次...”。ItisthefirsttimeIhavebeenhere.=ThisisthefirsttimeIhavebeenhere.5).Ithappens(seems,looks,appears)that...该句型中it是形式主语,t
7、hat引导的是主语从句,主句中的happen,seem等词是不及物动词。Ithappened(sohappened)thathemethisteacherinthestreet.碰巧...Itseemsthathewillbebackinafewdays.看来...3.2.作形式主语替代不定式1).Ittakessb....todosth."做...要花费某人.." Ittookthousandsofpeoplemanyyearstobu
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