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1、It句型归纳总结I．It作形式主语的句型①It+be+adj(kind,wise,careless,clever…)+ofsbtodosthEg:Itiswiseofhimtomakesuchadecision.他做出这样的决定是明智的。②It+be+adj(easy,safe,common,normal…)+forsbtodosth该句型中adj若为important,necessary,natural,possible,strange,vital,essential等可改为从句,从句用should+
2、动词原形。.Eg:It’sverydangerousforchildrentoplaywithfire.ItisimportantforustolearnEnglishwell.(=Itisimportantthatwe(should)learnEnglishwell.)③It+be+V-ed(reported,believed,said,suggested…)+that从句该句型中：⑴若V-ed为reported,believed,said等常译为“据报道”，“据认为”，“据说”。⑵若V-ed为sug
3、gested,ordered,demanded,insisted等表示“建议”,“命令”的词，从句要用虚拟语气(should)+动词原形。Eg:Itissuggestedthatthebook(should)berevised.It’ssaidthatTomhasbeenbackfromabroad.(=Tomissaidtohavebeenbackfromabroad.)④It+be+n(apity,ashame,afact,goodnews…)+that从句: 该句型中，从句一般用(should)+
4、动词原形，表示出乎意料，常译为＂竟然＂。Eg:Itisapitythatsuchathing(should)happeninyourclass.这种事竟然发生在你们班上，真是遗憾！⑤Itisuseless/nouse/nogood+doingsth此句型中的it是形式主语,其后的动名词短语是真正的主语,译为“做…没有用”。Eg:Ituselessarguingwithhimfurther.It’snousetalkingwithhim,becausehewon’tlisten.⑥Ittakessb...
5、.todosth.该句型中it是形式主语，真正的宾语是todosth，常译为＂做．．．要花费某人．．．＂。 Eg:IttookthousandsofpeoplemanyyearstobuildtheGreatWall.II．It作形式宾语的句型1.sbfind/believe/think/feel/consider/make+it+n/adj+todo或从句该句型中的it作形式宾语。为了记忆方便我们可称该句型为“6123结构”。6指主句中常用的动词：think,believe,make,find,co
6、nsider,feel；1指的是形式宾语it；2指的是宾补的两种形式：形容词或名词；3指的是真正宾语的三种形式：不定式短语，动名词短语或that引导的宾语从句。Eg:Wethinkitourdutytocleanourclassroomeveryday.HefeltitimportantlearningEnglishwell.Theyfounditdifficultthattheywouldfinishtheirworkintwodays.2.主语＋hate/dislike/love/like＋it＋w
7、hen－从句Eg:Ihateitwhenpeoplespeakwiththeirmouthsfull.3.主语＋appreciate＋it＋if－从句Eg:Ireallyappreciateitifyoucouldhelpmewithmymath.4.sb.dependon/counton/relyon/seeto(负责，确保)/answerforitthat…Eg:Youmayrelyonitthathewon’tbelate.Youmustseetoitthatthedoorsarelockedbe
8、foreyouleavethelab.5.sb.takeitforgrantedthat…认为……是理所当然的Eg:Itakeitforgrantedthathewillsucceed.III.It引导的时间句型⑴It+is+时间段+since引导的时间状语从句: 该句型中从句一般用过去时态，句意为“自从......以来已多久了”Eg:Itis5minutessincethebusleft.公汽开走已有5分钟了⑵It+be+时间段+befo
