It句型歸納最全總結(jié)

1、It句型歸納總結(jié)I .It作形式主語的句型 It+be+adj(kind,wise,careless,clever)+ofsbtodosthEg:Itiswiseofhimtomakesuchadecision.他做出這樣的決定是明智的。 It+be+adj(easy,safe,common,normal)+forsbtodosth該句型中adj若為important,necessary,natural,possible,strange,vital,essential等可改為從句，從句用should+動詞原形。.Eg:It'sverydangerousforchildrentoplay

2、withfire.ItisimportantforustolearnEnglishwell.(=Itisimportantthatwe(should)learnEnglishwell.) It+be+V-ed(reported,believed,said,suggested一)+that從句該句型中：若V-ed為reported,believed,said等常譯為“據(jù)報道"，"據(jù)認為"，"據(jù)說"。若V-ed為suggested,ordered,demanded,insisted等表示"建議"，"命令"的詞

3、，從句要用虛擬語氣(should)+動詞原形。Eg:Itissuggestedthatthebook(should)berevised.It'ssaidthatTomhasbeenbackfromabroad.(=Tomissaidtohavebeenbackfromabroad.) It+be+n(apity,ashame,afact,goodnews)+that從句:該句型中，從句一般用(should)+動詞原形，表示出乎意料，常譯為"竟然"。Eg:Itisapitythatsuchathing(should)happeninyourclass.這種事竟然發(fā)生在

4、你們班上，真是遺憾！ Itisuseless/nouse/nogood/pleasure+doingsth此句型中的it是形式主語，其后的動名詞短語是真正的主語，譯為“做-沒有用”。Eg:It'suselessarguingwithhimfurther.Ittakessb.todosth.該句型中it是形式主語，真正的賓語是todosth,常譯為"做.要花費某人.”。Eg:IttookthousandsofpeoplemanyyearstobuildtheGreatWall.II .It作形式賓語的句型1. sbfind/believe/think/feel/consider

5、/make+it+n/adj+todo或從句it6123o6指主句中常用的動詞：think,believe,make,find,consider,feel；1指的是形式賓語it；2指的是賓補的兩種形式：形容詞或名詞；3指的是真正賓語的三種形式：不定式短語，動名詞短語或that引導(dǎo)的賓語從句。Eg:Wethinkitourdutytocleanourclassroomeveryday.HefeltitimportantlearningEnglishwell.Theyfounditdifficultthattheywouldfinishtheirworkintwodays.2. 主語+hate/d

6、islike/love/like+it+when一從句Eg:Ihateitwhenpeoplespeakwiththeirmouthsfull.3. 主語+appreciate+it+if一從句Eg:Ireallyappreciateitifyoucouldhelpmewithmymath.4. sb.dependon/counton/relyon/seeto(負責(zé)，確保)/answerfo門tthatEg:Youmayrelyonitthathewon'tbelate.Youmustseetoitthatthedoorsarelockedbeforeyouleavethelab.5.

7、 sb.takeitforgrantedthat認為是理所當(dāng)然的Eg:Itakeitforgrantedthathewillsucceed.III.It引導(dǎo)的時間句型(1)It+is/hasbeen+時間段+since引導(dǎo)的時間狀語從句：該句型中從句一般用過去時態(tài)，句意為“自從.以來已多久了”Eg:Itis5minutessincethebusleft.公汽開走已有5分鐘了It+be(will/was)+時間段+before引導(dǎo)的時間狀語從句：該句型中，主句謂語動詞be若為肯定式，意為“過多久才.”；若為否定式時，意為“沒過多久就Eg:Itwillbelong/3hoursbeforeheco

8、mesback.要過三個小時他才會回來Itwas3hoursbeforehecameback.過了三個小時他才回來(3)It+be+時間點+when引導(dǎo)的時間狀語從句這個句型中,it代指時間，表示時間點的詞前沒有介詞。Eg:ItwillbeMondaywhenhecomesback.他周一的時候回來.ItwasMondaywhenhecameback.他周回來的.對比：ItwasonMondaythathecameback.(強調(diào)句)It+is(about/high)time+(that)sbdid/shoulddosth意為“該是某人做一的時候了"，about/high是用于加強語

9、氣，that從句用should或動詞一般過去時表虛擬。亦可轉(zhuǎn)換成It+is+time+(forsb)todosth.Eg:It's(high/about)time(that)wehandedin/shouldhandinourhomework.(5) It/This/That+is+thefirst(second)time+thatsbhasdonesth:意為“這是某人第一次做”，注意time前有序數(shù)詞，主句是is時，從句要用現(xiàn)在完成時；如果主句用was,則從句須用過去完成時。Eg:ItisthethirdtimethatIhaveseenthefilm.Thatwastheseco

10、ndtimethatIhavebeenthere.IV.It引導(dǎo)的強調(diào)句強調(diào)句形式：It+is/was+被強調(diào)的部分+that/who從句Eg:ItwaslastweekthatImetanoldfriendinthestreet.(強調(diào)原因狀語從句時，只能強調(diào)由because所引導(dǎo)的從句.)判斷方法：將Itis/was和that去掉，若該句是一個完整無缺的句子即為強調(diào)句?？伎键c：強調(diào)句型中的主謂致Eg:Itisyou,ratherthanhe,thataretoblamefortheaccident.插入從句的強調(diào)句型Eg:Itwasintherestaurantwherewehaddinn

11、erlastSundaythatyouleftyourwallet強調(diào)句型的一般疑問句、特殊疑問句形式一般疑問句：Is/Wasit+被強調(diào)部分+that+句子其余部分Eg:Wasitin1933thattheSecondWorldWarbrokeout特殊疑問句：疑問詞+be+it+that+句子其余部分Eg:Whenwasitthathechangedhismindtotakepartintheactivity強調(diào)句型用于名詞性從句，尤其注意要使用陳述語序。Eg:Idon'tknowwhenitwasthathechangedhismindtotakepartintheactivit

12、ynotuntil用于強調(diào)句型Itis/wasnotuntil+被強調(diào)部分+that+其他部分Eg:Itwasnotuntilmidnightthatshewentbackhome.已經(jīng)是否定句此句型只用until,不用till。但如果不是強調(diào)句型，till和until可通用。因為句型中Itis/wasnot.了，that后面的從句要用肯定句。V.It其他常見用法：Itlooks/appearsasif.看起來好像Itlooksasifsheisill.Itseemsthat.彳以乎Itseemsthathewillbebackinafewdays.Itturnsoutthat.原來是Ittu

13、rnedoutthatthebeautifulwomanwasathief.Itoccursto/strikessbthat突然想至UItoccurredtomethatIhadn'tlockedthedoor.Ithappenedthat.碰巧Ithappenedthathemethisteacherinthestreet.Itdoesn'tmatterwhether/ifItisnowonderthat難怪HowdiditcomeaboutthatItalldepends/thatalldepends.,一無論是,一沒關(guān)系Itdoesn'tmatterwhetherhewillcomeornot.He