第三章代詞人稱代詞主格Iyouhesheitweyouthey賓格meyouhimheritusyouthem物主代詞形容詞性myyourhisherit’souryourtheir名詞性mineyourshishersitsoursyourstheirs反身代詞myselfyourselfhimselfherselfitselfourselfyourselvesthemseves試體會下列人稱代詞的用法：（1）Heseatedhimselfatthebackoftheclassroom.（反身代詞只作賓語、同位語和表語）Pleasehelpyourselftosomefish.Sometimeshedoesn’tbelieveinhimself.---Whoisknockingatthedoor?---It’sme.Thepoorboywashimself.Thisbookismine,nothis.He’sanoldfriendofmine,nothers.You,heandIhaveworkedtogetherfortenyears.（注意人稱代詞的順序）---Nicetoseeyouhere.---Me,too.（這里不能用I：我也如此。）Allofusshouldlearnfromthemall.考點1.人稱代詞,物主代詞的常用考點：1.人稱代詞用作為表語時，與動詞前的代詞或名詞同格：eg.1.Doyouthinkthethieftobe?.A.IB.hisC.himD.man2.Ithoughtitwas(D).A.himB.himselfC.hisD.he2.在名詞雙重所有格里的物主代詞用法3.(C).Themanyoumetinthestreetisafriendof__________. A.I B.my C.mine D.me3.在比較時注意前后對稱4.(D).Ourclassroomislargerthan____________. A.you B.your C.yous D.yours4.人稱代詞在并列使用時的順序為：“第二人稱，第三人稱，第一人稱”。如：You,sheandIallenjoythemusic.但是，復數(shù)應為“第一人稱，第二人稱，第三人稱”。Eg.We,youandtheyarefriendlytooneanother.考點2.反身代詞的常用考點掌握其固定結構：enjoyoneself=haveagoodtime(過得很愉快)

learnsth.byoneself

=teachoneselfsth.(自學)devoteoneselfto獻身于cometooneself蘇醒過來;醒悟過來;恢復理性speaktooneself自言自語teachoneself自修helponeselftosth(隨便吃/喝些...)Helpyourselftosomemeat!請自己吃點肉吧！foroneself為自己;代表自己;獨力地;親自地Oneshouldnotliveforoneselfalone.一個人不應只是為自已活著。(all)byoneself=alone單獨地，獨自ofoneself自動地,自發(fā)地Thedooropenedofitself.注意oneself與one’sown的區(qū)別eg.Imyselfdon’tknowhowtoexpressmyselfinmyownwords.同位語賓語定語三。相互代詞eachother(兩者)eachother’s彼此的oneanother(三者or以上)oneanother’s彼此的eg.Weshouldhelpeachother/oneanother,learnfromeachother/oneanother.四。指示代詞this---thatthese---those考點3.such---sosuch+noun,so+adj.oradv.但是只說somany/much/few/little+noun不說suchmany/much/few/little+nounsuchagoodboy可轉換成sogoodaboysuchaseg.He’ssuchagoodstudentthatalltheteacherslikehim.=He’ssogoodastudentthatalltheteacherslikehim.He‘ssurprisedthatsuchliittleanimalscaneatsomanythings.（這里的little指“小”）HeknowssolittleEnglishthathecannotunderstandthenativespeakersatall.（這里的little指“少”）Ihaveneverheardof(C)asheis.A.suchgreatman B.suchgreataman C.suchagreatman D.asuchgreatmanItis(D)day.A.sobeautifulthe B.soabeautiful C.suchbeautifula D.suchabeautifulHecriedout,”(C)carelessmanbefore!”A.NeverImetwithsucha B.InevermetwithsuchaC.NeverhaveImetwithsucha D.NeverhaveImetasuchthesameaseg.Heisthesameageashiswife.五.疑問代詞誰who,whatWhoareyou?It’sme.Whatareyou?I’mateacher.考點4.什么what（范圍確定）which哪個（范圍不確定）_________doyoulikebetter,cofeeortea?A.whichB.what考點5.如何how三個“如何“不用how,而用what的句型:1.Whatis+S+like?What’stheweatherliketoday?2.Whatdoyoudowith+sb/sth?Whatdoyoudowiththeoldbike?但是Howdoyoudealwith+sb/sth?3.Whatdoyouthinkof+sb/sth?但是Howdoyoufeel+sb/sth?年齡howold考點6.距離howfar長度howlongfor+時間段;since+時間點Howfarisitfromheretothestation?Atwenty-minutewalk.HowlongdoesittaketoflyfromBeijingtoShanghai?Twohours.HoelonghaveyoubeeninBeijing?Fortwoyears.考點7.頻度howoften多快howsoon+將來時(用in+時間段回答)eg.HowlongdoesittaketoflytoBeijing?Takethemedicine3timesaday.(howoften?)Thebridgewillbecompletedinaweek.(howsoon)時間when幾點鐘whattime原因why地點whare考點8.關聯(lián)詞的用法主句定語從句先行詞+關聯(lián)詞+主+謂人thator主who賓whom/who(或省略)定whose物thator主which賓which(或省略)定whose先行句+關聯(lián)詞+主+謂as(象一樣)可放主句前which不可放主句前eg.Iwaslateagain,whichmademyteacherangry.Heisatopstudentinourclass,asisknowntous./Asisknowntous,heisatopstudentinourclass.七.替代詞eg.Ourclassroomislargerthanyourclassroom.=yours=yourone替代詞考點9.（1）one,ones,that,those的用法one替代上文出現(xiàn)的可數(shù)名詞的單數(shù)形式ones替代上文出現(xiàn)的可數(shù)名詞的復數(shù)形式theones=thoseeg.Theones(=Those)whoareLeaguememberswilltakepartintheactivity.that替代上文出現(xiàn)的不可數(shù)名詞;that=theoneeg.ThepopulationofChinaislargerthanthatofUSA.Thisstoryismoreinterestingthanthatone.ThepopulationofChinaislargerthanthatofIndia.ThecultureandcustomsofAmericaaremorelike_______ofEnglandthanofanyothercountry.A.thatB.thoseC.onesD.these（分析：that只能用來代替上文提到的單數(shù)名詞；ones前面必須有修飾語；those可以替代前面提到的復數(shù)名詞，但不能用these，所以答案應該是B。）D.Thesetreeslookhealthierthan__________alongtheroad.A.thoseB.otherC.anotherD.ones(2)one／ones和that／those是指同類而不同物，it／them指同類而且同物。Thispenisn’ttheoneIlostyesterday.GirlsinClassTwoaremoreactivethanthoseinClassOne.YesterdayIlostmywatch.ButIhaven’tfoundityet.---Haveyoureturnedthebooks?---Yes,Ihave.Ihavejustreturnedthemyet.-（指代前面的thebooks）E.Thecostofhiscarishigherthan(D)ofmine.A.it B.cost C.any D.thatF.Thehousebuiltofbricklastedlongerthan(B)builtofwood.A.one B.that C.ones D.thoseG.Ahousebuiltofbricklastedlongerthan(A)builtofwood.A.one B.that C.theone D.those如:1.Ihopethereareenoughglassesforeachguesttohave____.A.itB.thoseC.themD.one2.-Whydon'twetakealittlebreak?-Didn'twejusthave____?A.itB.thatC.oneD.this3.MrZhanggavetextbookstoallthepupilsexcept____whohadalreadytakenthem.A.theonesB.onesC.someD.theothers(3)so和not常接在某些語氣比較委婉的動詞之后以代替that從句的全部或部分。這些動詞有：think，expect，hope，believe，suppose，imagine，guess，say，beafraid等。A.---Doyouthinkit’sgoingtorain?---Yes,Ithinkso.B.---Willhecometojoinus?---Ihopenot.注意：（1）think，believe，expect，suppose等否定可有兩種形式：Ithinknot=Idon’tthinkso.（2）其他動詞只有一種說法：Ihopenot.但不可以說：Idon’thopeso.八.不定代詞1.some+可數(shù)名詞or不可數(shù)名詞用于肯定句any+可數(shù)名詞or不可數(shù)名詞用于否定句,疑問句但是，在表示請求，建議的句子里，不用any要用someeg.Wouldyoulikesomecoffee?實例:Theremustbe_____bookwhichcouldhelp. A.some B.any C.one D.oneuseful答案是A項。some除了用作數(shù)量詞外，還可用來泛指未知的人或事物。又如：Theremustbesomereasonforwhathehasdone.(他所做的事肯定基于某種原因。)2.many+可數(shù)名詞=anumberof,agoodmany,plentyofmuch+不可數(shù)名詞=agreat/gooddealof,anamountof3.few,afew+可數(shù)名詞little,alittle+不可數(shù)名詞onlyafew=few極少notabit=notatall一點也不quiteafew=many不少notalittle=much許多eg.(B)Hehasonlyafewfriends,sohefeels_________.A.alone B.lonely C.happy D.happilyfew,little看作為否定詞eg.Hemadefewmistakesinhishomework,didhe?Youhavelittlemoneywithyou,doyou?4.與數(shù)量有相關的不定代詞(概括代詞)兩者三者或以上都both(謂：復數(shù))all(謂：單數(shù)—指不可數(shù)名詞；復數(shù)---指可數(shù)名詞)eg.Allofuslikehim.All(matter)thatshinesisn’tgold.都不neither(謂：單數(shù))none(謂：單數(shù)or復數(shù);可指人or物；強調數(shù)量；回答howmany?)nobody/noone(謂：單數(shù);強調誰；回答who?)eg.Howmanyboysarethereinyourclassroom?None.Whoisinyourclassroom?Noone/Nobody.任何一個eitherany每一個eacheacheveryeg.Therearetreeseither/eachsideofthestreet.Therearetreesbothsidesofthestreet.every/each的區(qū)別each強調個性，可作主語、定語、賓語和同位語。every強調整體，只作定語。each可用于兩者或兩者以上；every用于三者或三者以上。Eg.Welikeeveryteacher/eachofteachers/不能說Everylikeshisteacher.熟讀下列句子試體會以上概括代詞的用法：Bothofthemareadvancedteachers.=Theyarebothadvancedteachers.（注意作主語和同位語時的位置，下同）Allofthemareengineers.=Theyareallengineers.Eithersentenceisright.=Bothofthesentencesareright.4.Iknowneitheroftheteachers.（這兩個老師我誰都不認識。）Noneofthestudentsinourclasshave/hasbeentothatisland.Shecutthecakeintopiecesandgaveonetoeachofthechildren.Note:none與nobody/noone的用法(1)在回答howmany時，用none；在回答who時，用nobody／noone。A---Howmanyelephantsdidyouseeinthezoo？----None.B.---Whohelpedyourepairtheradio?？—Nobody/Noone.(2)none可以跟of…短語連用，而nobody／noone不能與of…短語連用。Noneofthemisapartymember.（這里不能用nobody／noone來代替none。下同）Noneofusknow（s）howtodoit.Ex(C).Therearethirtystudentsinourclass._____ofthemareLeaguemembers. A.Noone B.Either C.All D.Both(B).Myparentsare______doctors. A.all B.both C.every D.each(B)______ofthestudentslikesfootball. A.Every B.Each C.Everyone D.All(B)._____ofthethreeboysishonest. A.All B.Any C.Either D.Every(A).______ofherparentsisingoodhealth.. A.Either B.Both C.All D.None(C)______ofyouarecorrect.. A.Either B.Neither C.Both D.Eachother,others(范圍不確定)theother,theothers(范圍確定)another(三者或以上的任何一個)只用于單數(shù)名詞前，而other可以用于單數(shù)或復數(shù)名詞前。eg.LeiFengwasalwaysreadytohelpothers.(范圍不確定)Ihavetwobrothers.OneisstudyinginBeijingUniversity,theotherisstudyingintheUSA.(范圍確定)Ifyoudon’tlikethispen,youcanchooseanother.(三者或以上的任何一個)Iwanttostudyhereforanotherweek(=onemoreweek).one…theother是指“兩個／者中一個……另一個……”；some…theothers1).Ihavelostmykey.Pleasegivemeanother,Mum.2)Mr.Brownhastwosone:oneisapilot,andtheotherisanengineer.3)I’vegoteightpencils.Twoofthemarered,andtheothersareblue.4)Somestudentsareplantingtrees,somearecarryingwater,andothersarewateringthetrees.5)Hegoestoseehisgirlfriendeaveryotherday.6)edidthatforsomeotherreason.7)OurschoolneedsanothertwoEnglishteachers.=OurschoolneedstwootherEnglishteachers.=OurschoolneedstwomoreEnglishteachers.（我們學校還需要兩位英語老師。）Somepeoplehopetobemoresuccessfulwhile__________simplywanttofeelmorecomfortable.

A.theothersB.othersC.theotherD.another6.復合不定代詞some/any/no/every+thing/body/one復合不定代詞作主語，謂語用單數(shù)第三人稱形容詞修飾復合不定代詞，必須后置(D)There's____intoday'snewspaper.A.importantanything B.importantsomething C.anythingimportant D.somethingimportant7.It的用法指代上文或下文出現(xiàn)的名詞的單數(shù)形式A.---Where’smybike?---It’soverthere.B.Howisthecoffee?---It’sverynice.這種指代有時也可以是一個完整的句子。---Johnfailedintheexam.---It’snatural.Heneverstudies.(it指代Johnfailedintheexam)用來代替this，thatA.---What’sthis?----It’sadictionary.（這里只能用it，不能用this）B.---Whosepencilisthis---It’smine.起指示代詞的作用，指代談話中的人或物A.---whoknockingatthedoor?---ItmustbeJack.B.Isitaboyorgirl?---It’sboy.指代時間、天氣、距離、環(huán)境情況等A.---Whattimeisitnow?---It’sfiveo’clock.B.Whatdayisittoday?----It’sFriday.C.What’stheweatherliketoday?----It’ssunny/fine/rainy/snowy/windy/foggy.D.It’sverynoisy/quiteoutside.(5).it作形式主語的三個句型It(形式主語)+be+adj.+todo./doing+that-clause+whether/when…-clauseeg.1.Itiswrongtotellalie.2.Itistruethathehasfailed.3.Itiscertainwhetherhewillbehereornot.4.Itisgoodmannerstothankotherswhentheyhelpyou.5.It’snoteasytofinishintwodays.6.It’snousecryingoverspiltmilk.A（注意這里只能用crying，不能用tocry。no后面要用ing形式）It’snotagoodhabittostayuplate.A（注意這里只能用tostay，不能用staying）ItisquiteimportantthatChinabecomesanofficialmemberofWTO.中國成為世貿組織的正式成員是十分重要的。B.It(形式主語)+be+adj.+for/ofsb+todo.(adj.表示人的品質時，用of;否則，用for)表示人的品質形容詞,主要有cruel,brave,rude,kind,foolish,wise,stupid,polite,clever其它形容詞,主要有necessary,possible,impossible,importantC.(1).It+seems/appears/happens+that+S+V.可轉換為S+seems/appears/happens+to+V.Eg.Itseemsthatheisill.=Heseemstobeill.(2).It+issaid/told/reported/believed+that+S+V.可轉換為S+issaid/told/reported/believed+V.Itisreportedthatalotofpeoplelosttheirjobsinthecitylastmonth.據(jù)報道,上個月這個城市的許多人都失業(yè)了。Itseemstomethatthemathsproblemistooeasyforher.在我看來,這道數(shù)學題對她來說太簡單。(6)it作形式賓語it作形式賓語,常用在6123結構中.6指主句中常用的動詞：think/believe/feel/find/consider,regard,suppose,make,take,imagine；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引導的賓語從句。eg.1.Doyouthink(B)difficulttoanswerthisquestions?A.thatB.itC.veryD.yourself2.Exhaused(筋疲力盡)aftertheday’swork,(C)toenjoytheevening.A.itwasdifficultforhimB.forhimitwasdifficultC.hefounditdifficultD.hefounddifficultC.強調句型強調句型是英語中的一種重要的句子結構，它是英語學習者必須掌握的一種重要句型，因而在高考英語試卷中占有一席之地，且其命題從基本結構重點難點的角度切入。一、強調句型的基本結構強調句型的基本結構為"Itis/was＋被強調部分＋that/who＋句子的其它部分"。當被強調部分為sb.，且在句中作主語時，可用who，也可用that，其它情況一律用that。強調主語時，that后的謂語動詞必須與被強調的主語人稱與數(shù)保持一致。如：Itistheywhooftenhelpmewithmylessons.ItisIwhoamtoblame.ItwasinGreecethatOlympiccompetitionsfirststarted.Itwasin1976thatTomknewher.在強調句中，去掉Itis/was...that/who后，句子結構仍然完整、正確，句意仍明確、全面。二、強調成分1、強調主語、賓語。如:ItwasJohnwho/thathelpedmeyesterday.(強調主語)Itwasthetwogirlsthattheteacherpraisedyesterday.(強調賓語)Itwastheabilitytodothejob_________mattersnotwhereyoucomefromorwhatyouare.(NMET2000)A.oneB.thatC.whatD.it強調主語theabilitytodothejob,故選B。2、強調狀語。如：Itwasatthegateofourschoolthatwegavethevisitorsawarmwelcome.(強調地點狀語)Itwaswithgreatjoythathereceivedthenewsthathislonglostsonwouldsoonreturnhome.(強調程度狀語)ItisbybusthatMaryusuallygoestoschool.(強調方式狀語)ItwasthreeyearsagothatIcametothisschool.(強調時間狀語)注意：a.強調時間、地點、原因或方式狀語時，要用that,不能用when,where,why或how。如：Itwasabout600yearsagothefirstclockwithafaceandanhourhandwasmade.(NMET'97)A.thatB.untilC.beforeD.when很明顯，這是對時間狀語的強調，故選A。ItwasonlywhenIrereadhispoemsrecentlyIbegantoappreciatetheirbeauty.(NMET'98)A.untilB.thatC.thenD.so本句強調時間狀語whenIrereadhispoemsrecently，故選B。Itwasbecauseofbadweatherthefootballmatchhadtobeputoff.(2003上海春季)A.soB.sothatC.whyD.that本句強調原因狀語becauseofbadweather,故選D。Itwaswheretherehadbeenatheatretheybuiltanewmodernschool.A.whereB.inwhichC.thatD.so本句強調地點狀語wheretherehadbeenatheatre,故選C。b.使用強調句型對狀語進行強調時，有必要將其與下列句型區(qū)分開來。我們來比較下面的句子：1)Itwasintheeveningthatthesoldiersarrivedatthesmallmountainvillage.(強調句型)Itwaseveningwhenthesoldiersarrivedatthesmallmountainvillage.(when引導時間狀語從句，it表示時間)2)Itwasat3o'clockthattheycameback.(強調句型)Itwas3o'clockwhentheycameback.(when引導時間狀語從句，it表示時間)3)Itisforthreehoursthattheyhavebeenback.(強調句型)Itwasthreehoursbeforetheycameback.(before引導時間狀語從句，it表示時間)Itisthreehourssincetheycameback.(since引導時間狀語從句，it表示時間)再如：Itwasrainingwhentheycameback.ItistruethatheoncewenttoCanada.ItisasurprisethatMaryshouldhavewonthefirstprize.3、對"not...until..."結構的強調，要用"Itis/wasnotuntil...that..."這一固定句型。由于否定已經前移，that后只能用肯定形式。如：ItwasnotshetookoffherdarkglassesIrealizedshewasafamousfilmstar.(NMET'92)A.when;thatB.until;thatC.until;whenD.when;then正確答案為B。Itwasnotuntil1920regularradiobroadcastsbegan.(NMET'95)A.whileB.whichC.thatD.since正確答案為C。4、強調含有定語從句的主、賓、狀語時，要確定好強調標志"that"的位置。如：Wasitattheschoolwhichwasnamedafteraherothathespenthischildhood?Itwasintheshopwhichwasopenedlastmonththatheboughtthebook.Itwasthegirlwhosefatherworkedabroadthatlentmethebook.Wasitin1982whenyouwereincollegethatyougottoknowher?三、強調句型的疑問句型例一：WasitduringtheSecondWorldWar___________hedied?(MET'88)A.thatB.whileC.inwhichD.then此句為強調句的一般疑問句，故選A。再如：Isityouwhooftenhelptheoldwomanwithherhousework?WasitinherfiftiesthatMarybegantolearnRussian?WasitatatheatrethatAbrahamLincolnwasshot?強調句的一般疑問句結構為：Is/Wasit...that/who...?例二：Who_________helpedyouworkoutthemathsproblem?A.washeB.itwaswhoC.wasitthatD.itwas此句為強調句型的特殊疑問句，故選C。再如：Wherewasitthatyoufoundthelostchild?Whowasitthatinventedthetelephone?Whywasitthatyourefusedhisofferofhelp?Howwasitthattheymanagedtofinishtheworkinsuchashorttime?強調句的特殊疑問句結構為：疑問詞＋is/wasitthat...？注意在強調句的疑問句型中，強調標志that/who后只能使用陳述語序。比較：Wasitbyplanethatdidhecomeback?(×)Wasitbyplanethathecameback?(√)WhenwasitthattheSecondWorldWarbrokeout?(√)WhenwasitthatdidtheSecondWorldWarbreakout?(×)鞏固練習：1.Itisthesepoisonousproducts__________cancausethesymptomsoftheflu,suchasheadacheandachingmuscles.(2003)A.whoB.thatC.howD.what2.Ifeelitisyourhusbandwho__________forthespoiledchild.A.istoblameB.isgoingtoblameC.istobeblamedD.shouldblame3.Itwasforthisreason__________herunclemovedoutofNewYorkandsettleddowninasmallvillage.(2001)A.whichB.whyC.thatD.how4.-Wherewasit__________theroadaccidenthappenedyesterday?-Infrontofthemarket.A.whenB.thatC.whichD.how5.Itwasnotuntilshehadarrivedhome__________herappointmentwiththedoctor.A.didsherememberB.thatsherememberedC.whensherememberedD.hadsheremembered6.Itwasnotuntil1956__________liberated.A.thatthetownwasB.didthetownC.wasthetownD.thatwasthetown參考答案：1-6BACBBAItis…that英語句型系列補充強化訓練1.--Wherewas＿＿＿＿＿＿youpickedupthewallet﹖--Justneartheschoolgate.A.itB.itthatC.theplaceD.theplacethat2.Imustfindoutwhy＿＿＿＿＿＿somanystudentsmadethesamemistake.A.isitthatB.wasitwhichC.itiswhatD.itwasthat3.Howmanyyearsisit＿＿＿＿＿＿yoursistercametoworkhere﹖A.afterB.sinceC.beforeD.until4.Isitinthefactory＿＿＿＿＿＿＿＿youvisitedlastweek＿＿＿＿＿＿＿＿thiskindofcarismade﹖A.／thatB.wherewhenC.wherethatD.／when5.＿＿＿＿It'salongtime＿＿＿＿＿＿＿Isawyoulast.--Yesandwhatapitysinceitwillbealongtime＿＿＿＿＿＿weseeeachotheragain.A.sincebeforeB.beforesinceC.untilafterD.afteruntil6.Itwasbecauseofbadweather＿＿＿＿＿＿thefootballmatchhadtobeputoff.A.soB.sothatC.whyD.that7.Itwashisremarks＿＿＿＿＿leftmewonderingabouthisrealpurpose.A.whichB.whatC.whereD.that8.--Wasitin1969＿＿＿＿＿＿theAmericanastronautsucceeded＿＿＿＿＿＿landingonthemoon﹖---Quiteright.A.whenonB.thatonC.wheninD.thatin9.Itwasnotuntil1920＿＿＿＿＿＿regularradiobroadcastsbegan.NMET95A.whileB.whichC.thatD.since10.＿＿＿＿＿＿isafactthatEnglishisbeingacceptedasaninternationallanguage.NMET95A.ThereB.ThisC.ThatD.It11.＿＿＿＿＿wasin1979＿＿＿＿＿Igraduatedfromtheuniversity.NMET98上海A.ThatthatB.ItthatC.ThatwhenD.Itwhen12.Itwasforthisreason＿＿＿＿＿＿herunclemovedoutofNewYorkandsettleddowninasmallvillage.NMT2001春，上海A.whichB.whyC.thatD.how13.Itistheprotectionforthetrees＿＿＿＿reallymattersratherthanhowmanytreesareplanted.A.whatB.thatC.／D.which14.--Wasthatthenewcomerwhowalkedby﹖＿＿＿＿＿.A.ItmustbethatB.ItmusthavebeenC.HemustbeD.Thismusthavebeen15.Ourclassroomisveryclean.Doyounowho＿＿cleanedit﹖A.wasitthatB.itwasthatC.wasitwhoD.hewas16.Nowthenchildren.It'shightimeyou＿＿＿＿＿＿anddressed.A.washedB.shouldwashC.werewashedD.arewashed17.＿＿＿＿＿thepeoplehavebecomethemasteroftheirowncountry＿＿＿＿＿＿＿sciencecanreallyservethepeople.A.Itisonlythen；thatB.Itwasthat；whenC.Itisonlywhen；thatD.Itwaswhen；then18.Itwas＿＿＿＿＿＿＿＿＿ImetMr.GreeninShanghai.A.tenyearssinceB.manyyearsagothatC.fiveyearsuntilD.Twomonthswhenkey：BDBAADDDCDBCBBBCCBD.常用的十個與it有關的句型1.Itisnotuntil+被強調部分+that...句型1主要用于強凋時間狀語，譯成漢語＂直到．．．才．．．＂，可以說是not...until...的強調形式2.Itistime(abouttime,hightime)that...該句型意為"是某人該干某事的時候了".這是一個虛擬語氣句型,表示與現(xiàn)在事實相反的虛擬語氣,句型2中that后的從句應該用虛擬語氣，值得注意的是用過去時態(tài)表示虛擬．should+動詞原形，should不能?。Ｗg為＂是（正是）．．．的時侯．．．＂Itishightimethatwewenttoschool.現(xiàn)在是我們該去上學的時候了。3.Itis/was/willbethefirst/second...timethat...該句型意為"這是/將是……第一/二……次干某事".當主句的謂語動詞用is時,從句的謂語動詞用現(xiàn)在完成時;當主句的謂語動詞用was時,從句的謂語動詞用過去完成時;當主句的謂語動詞用willbe時,從句的謂語動詞用一般現(xiàn)在時(表示將來)。如:ItisthefirsttimethatIhavespokentoaforeigner.這是我首次和一位外國人交談。句型3要和句型2區(qū)別開來，該句型中的that從句不用虛擬語氣，而用完成時態(tài)，至于用什么完成時態(tài)，由主句的謂語動詞的時態(tài)決定，如果是一般現(xiàn)在時，后面從句用現(xiàn)在完成時態(tài)；如果是一般過去時，后面從句則用過去完成時態(tài)．該結構中that可以省去；it有時用this替換．常譯為＂是第一（二）．．．次．．．＂4.Itis....since...意為"自……以來已有多長時間了"或"自不……以來已有多長時間了"。句型4主要用作處理瞬間動詞的完成時，又要和表示一段時間時間狀語連用的問題．主句中是時間作表語，一般是現(xiàn)在時或完成時，since引導的從句一般是一般過去時態(tài)，而且是瞬間動詞．如果主句是一般過去時，從句則用過去完成時．注意:在該句型中若since從句的謂語動詞是非延續(xù)性動詞,則表示從句中的動作延續(xù)多長時間了;若since從句的謂語動詞是延續(xù)性動詞或狀態(tài)動詞,則表示從句中的動作已結束多長時間了,譯成漢語時要特別注意.如:ItisjustaweeksincewearrivedinBeijing.我們到達北京剛好一星期。ItisfiveyearssinceIlastsmoked.我戒煙已有五年的時間了。5.Itis/was/willbe+……+before從句這一句型意為"還有……時間就……".如:Itwon'tbelongbeforeyoureachyourgoal.你離成功不遠了。Itwasn’tlongbefore…不久，。。。。6.Ittakessb.+time+todosth.句型6中的不定式是真正的主語，it是形式主語，句型中的直接賓語是時間．常譯為＂做．．．要花費某人．．．＂7.Itisnogood(use)doingsth.句型號7中的真正主語是動名詞短語，主句中的表語可以是nogood,(notanygood),nouse,(notanyuse)8.Itdoesn’tmatterwhether(if)...常譯為＂不論（是否）．．．沒關系