英语常用结构归纳.doc

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1、英语常用结构归纳1．IT²It强调句1)Itis/was+强调部分+that/who…ItwasaglassthatMarybroke.Itisaquestionthatneedscarefulconsideration.2)Is/wasit+强调部分+that/who…?3)Where/What/How（特殊疑问词）+is/wasitthat…Howisitthatyouwillgotovisithertomorrow?²It作形式主语1)Itis+adj.+of/forsb.todosth.Itisnecessaryf

2、oreveryonetomasteraforeignlanguage.Itisgenerousofhimtolendhisnewly-boughtdigitalcamera.2)Itsohappenedthat…碰巧ItsohappenedthatIwonthefootballlotterylastweek.3)Itoccurstosb.that…突然想到ItneveroccurredtomethatTomwouldbemadechairmanoftheStudents’Union.4)Itisreported/belie

3、ved/estimated/said/well-known/rumouredthat…Itissaidthatthesiteofanancientcityhasbeendiscoveredatthebottomofthelake.5)Itis+adj.(important,necessary,strange,natural,surprising)thatsb.shoulddosth.Itisimportantthatenoughmoneyshouldbecollectedtofundtheproject.6)Itis+n.

4、+that…Itisafactthattheearthmovesaroundthesun.Itisapity/shamethatheshouldnotcome.7)Itislikelythat…=sb./sth.belikelytodosth…有可能Itislikelythattheydon’tknowhowtodealwiththepressurefromstudy.²It作形式宾语1)V.(feel,make,find,consider)+it+adj./n.todosth.Ifindithardtocooperate

5、withthosewhosticktotheirownopinions.2)V.(feel,find,make,consider)+it+adj./n.+that从句Thecompanymadeitarulethatwhoeverislateforworkwillbefined.3)V.(take,have,love,appreciate)it…Iappreciateitifyoucouldhelpmeworktheproblemout.4)Itseems/appears/turnsout/remains…Itappear

6、sthatTommightchangehisidea.²Itisnouse/good/awasteoftime/uselessdoingsth…Itisnousecryingoverspiltmilk.²Itis(high/about)timethatsb.did=Itistime(forsb.)todosth.=Itistimeforsth.Itishightimethatyouwenttobed.=Itistimeforyoutogotobed.=Itistimeforsleep.²takeitforgrantedth

7、at…想当然Itakeitforgrantedthattheywillsupportthisidea.²seetoitthat…确保(从句用一般现在时表将来)Seetoitthateverywindowisclosedbeforeyougotobed.²Itisthefirst/second/thirdtimethatsb.hasdonesth.某人第几次做某事Itwasthefirst/second/thirdtimethatsb.haddonesth.Itwasthefirsttimethatshehadtravele

8、dbyair.²Itis(=hasbeen)+一段时间+since+sb.didsth.自从……有多久了Itisthreeyearssincehelivedhere.ItistwoyearssinceIstoppedsmoking1．Therebe1)Thereisnodenyingthat…不可否认T