IT 句型结构.docx

IT句型结构

第一篇：IT句型结构IT句型结构：1.Itis+被强调部分+that..该句型是强调句型。将被强调的部分放在前面，其它部分置于that之后。被强调部分可以是主语，宾语，表语或状语。强调的主语如果是人，that可以由who换用。如果把这种句型结构划掉后，应该是一个完整无缺的句子。Itwastheythat(who)cleanedtheclassroomyesterday.ItwasinthestreetthatImether.Itwasabout600yearsagothatthefirstclockwithafaceandanhourhandwasmade.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。Itwasnotuntilhermothercamebackthatshewenttobed.=Notuntilhermothercamebackdidshegotobed.=Shedidn’tgotobeduntilhermothercameback.3.Itisclear(obvious,true,possible,certain)that该句型中it是形式主语，真正的主语是that引导的主语从句，常译为“清楚（显然，真的，可能的，肯定……）”是主语从句最常见的一种结构。Itisveryclearthathe'sroundandtalllikeatree.=Thathe'sroundandtalllikeatreeisveryclear.Itiscertainthathewillcome.4.Itisimportant(necessary,right,strange,natural...)that...该句型和上一个同属一个句型。由于主句中的形容词不同，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.Itisnecessarythathe(should)rememberthesewords.Itisstrangethathehavesomanyfriendshere.5.Itis+过去分词+that从句ItisreportedthattherewillbeaconcertthisSaturdaynight.Itissaidthatthenovelhasbeentranslatedintoseveralforeignlanguages.该句型常为:Itissaid/hoped/thought/supposed/known/reported/announced/decided/believed/…that…等,该句型常可以转换成含有宾语从句的复合句或者含有不定式作主语补足语的简单句。eg:据说汤姆已经回国了。ItissaidthatTomhascomebackfromabroad.=PeoplesaythatTomhascomebackfromabroad.=Tomissaidtohavecomebackfromabroad.6.Itissuggested(ordered,required)that该句型和上一个同属一个句型。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.Itwasorderedthathe(should)arrivethereintwohours.7.Itisapity(ashame...)that...该句型中，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.这种事竟然发生在你班上，真是遗憾！Itisapitythatheisill.他生病了，真遗憾！8.It+is/was+one'sturn(duty,pleasure,apity,greatfun,ahabit,time,arule,ashame,nowonder)+todosth.It'syourturntobeondutytomorrow.明天轮到你值日了。Itmustbegreatfuntoflytothemooninaspaceship.乘宇宙飞船飞往月球一定很有趣。It'sapleasur