专四词汇语法(完整)

专四语言知识,Dorothy,题型特点：*总共20题，分值20分，时间10分钟*语法题10道，词汇题10道*语法居前，词汇居后,小练：62.Overpopulationposesaterriblethreattothehumanrace.Yetitisprobably_athreattothehumanracethanenvironmentaldestruction.(2007专四）A.nomoreB.notmoreC.evenmoreD.muchmoreHeisnomorediligentthanhisbrother.Heisnotmorediligentthanhisbrother.Heisnolessdiligentthanhisbrother.,和一样不,不超过，不比更,不亚于，和一样,Heisnomorethanaworker.(just)Notmorethan5studentspassedtheexam.(atmost),比如：词汇题,58.Weshouldmakeaclear_betweencompetentandproficientforthepurposesofourdiscussion.（2000）A.separationB.divisionC.distinctionD.difference56.Beingcolour-blind,Sallycantmakea_betweenredandgreen.（2001）A.differenceB.distinctionC.comparisonD.division63.Duringthesummerholidayseasonitisdifficulttofinda(n)_roominthehotelshere.(2002)A.emptyB.vacantC.freeD.deserted60.Duringthesummerholidayseasonthereareno_roomsinthisseasidehotel.（2003）A.emptyB.blankC.desertedD.vacant,57.Jimmyearnshislivingby_worksofartinthemuseum.（2004）A.recoveringB.restoringC.renewingD.reviving67Agreatamountofworkhasgoneinto_theCathedraltoitsprevioussplendour.（2006）ArefreshingBrestoringCrenovatingDrenewing80Thecouplehasdonatedanot_amountofmoneytothefoundation.（2006）AinconsiderableBinconsiderateCinaccurateDincomparable67.Ontheroadmotoristsshouldbeawareofcyclistsandbe_towardsthem.（2008）A.considerableB.consideringC.considerateD.considered,62.Heplaystennistothe_ofallothersports.（2004）A.eradicationB.exclusionC.extensionD.inclusion68.Thebarintheclubisforthe_useofitsmembers.（2007）A.extensiveB.exclusiveC.inclusiveD.comprehensiveexclusivenews/report/store/clubAreweexclusive?,语法题,53.She_fiftyorsowhenIfirstmetherataconference.(2009)A.hadbeenB.mustbeC.hasbeenD.musthavebeen56.She_fiftyorsowhenIfirstmetherattheconference.（2007）A.mustbeB.hadbeenC.couldbeD.musthavebeen51._atinthisway,thepresenteconomicsituationdoesntseemsogloomy.（2000）A.LookingB.LookedC.HavinglookedD.Tolook64._atinhisway,thesituationdoesntseemsodesperate.（2007）A.LookingB.LookedC.BeinglookedD.Tolook,45.Intellectistothemind_sightistothebody.（2001）A.whatB.asC.thatD.like53.Nineistothree_threeistoone.（2008）A.whenB.thatC.whichD.what,专四特殊句型：AistoBwhatCistoD,Wateristofishwhatairistoman.,让步状语从句特殊句型as引导让步从句，要求用倒装结构，把强调的部分置于句首。,48.Fool_Janeis,shecouldnothavedonesuchathing.（2002）A.whoB.asC.thatD.like49._Ilikeeconomics,Ilikesociologymuchbetter.（2003）A.AsmushasB.SomuchC.HowmuchD.Muchas55._hewantedtogooutwithhisfriendsattheweekend,hehadtostaybehindtofinishhisassignment.（2008）A.MuchthoughB.MuchasC.AsmuchD.Thoughmuch,专四语法总结：虚拟语气时态与语态主谓一致非谓语动词情态动词定语从句（+状语从句+名词性从句）反义疑问句专四特色短语+句型,虚拟语气,条件句中的虚拟语气,例句：AboutmarriageIfyouhadmarriedmebefore,youwouldnothavegonethroughsuchadifficultperiod.(过去）IfIwereyou,Iwouldmarrytheguyinfrontofyou.（现在）IfIwereamanintheafterworld,Iwouldmarryagirlexactlylikemyself.（将来）Ifthesunwereto/shouldriseinthewesttomorrow,Iwouldthinkaboutmarryingyou.（将来）,错综条件句：当条件状语从句表示的行为和主句表示的行为所发生的时间不一致时，动词的形式要根据它所表示的时间作相应调整。如：Iftheyhadworkedhard,theywouldbeverytirednow.(从句说的是过去，主句指的是现在)Ifyouhadmarriedmebefore，youwouldnothavegonethroughsuchadifficultperiod.Ifyouhadmarriedmebefore，youwouldbeveryhappynow.,虚拟句通常可省略if，变换形式，即“were/had/should+主语”。例句：Ifyouhadmarriedmebefore,youwouldnothavegonethroughsuchadifficultperiod.IfIwereyou,Iwouldtakeit.IfIhadtimerightnow,Iwouldgowithyou.Ifitwereto/shouldraintomorrow,thefootballmatchwouldbeputoff.,宾语从句中：insist,suggest,require,request,demand,propose,maintain,recommend,等动词表建议、愿望时，其后宾语从句中谓语动词要用虚拟语气-Should+V主语从句中：Itis+adj.that句型中出现形容词如necessary,vital,imperative,critical,crucial,urgent,strange,disappointing,或过去分词充当的形容词如suggested,proposed,advised,demanded,requested,required等时，that句中用should+V表示虚拟。,定语从句中。常用句型“Itis(high)time(that)”中，定语从句的谓语动词用一般过去时(be用were)ItstimethatIpickedupmydaughter.Itshightimewewenttobed.,让步状语从句中beorBeitfineorrainy,wewouldhavethesportsmeeting.=Whetherit(may)befineorrainy,wewouldhavethesportsmeeting.Ourcivilizationhasaccumulatedanincredibleamountofknowledgebeitscientificorartistic.,42._,Iwouldmarryhimallthesame.(2004)A.WasherichorpoorB.WhetherrichorpoorC.WereherichorpoorD.Beherichorpoor,在ifonly引导的感叹句中。IfonlyIwereabird.（现在）IfonlyIhadtakenhisadvice.(过去）,Whatsmore?was(were)+tohavedone（不定式完成式）表示“原来想做而未做”后面通常but（陈述语气）。Eg.Iwastohavearrivedhomeontime,butmycarwasheldupbyabadtrafficjam.,55.Lindawas_theexperimentamonthagobutshechangedhermindatthelastminute.（2007）A.tostartB.tohavestartedC.tobestartingD.tohavebeenstarting,回想总结三时间一交叉一省略五句子一特殊,真题展示：49.Allofuswouldhaveenjoyedthepartymuchmoreifthere_quitesuchacrowdofpeoplethere.（2000）A.werentB.hasntbeenC.hadntbeenD.wouldntbe50._forthefactthatshebrokeherleg,shemighthavepassedtheexam.（2002）A.HaditnotbeenB.HadntitbeenC.WasitnotD.Wereitnot,51.“Whatcoursesareyougoingtodonextsemester?”“Idontknow.Butitsabouttime_onsomething.”（2002）A.IddecideB.IdecidedC.IdecideD.Imdeciding44._ifIhadarrivedyesterdaywithoutlettingyouknowbeforehand?（2004）A.WouldyoubesurprisedB.WereyousurprisedC.HadyoubeensurprisedD.Wouldyouhavebeensurprised,51.Ifyouexplainedthesituationtoyoursolicitor,he_abletoadviseyoumuchbetterthanIcan.（2005）A.wouldbeB.willhavebeenC.wasD.were60.Thatwasnotthefirsttimehe_us.Ithinkitshightimewe_strongactionsagainsthim.（2005）A.betrayedtakeB.hadbetrayedtookC.hasbetrayedtookD.hasbetrayedtake,52.IfonlyI_playtheguitaraswellasyou!（2006）AwouldBcouldCshouldDmight54Itshightimewe_cuttingdowntherainforests.(2006)AstoppedBhadtostopCshallstopDstop59Itisimperativethatthegovernment_moreinvestmentintotheshipbuildingindustry.(2006)AattractsBshallattractCattractDhasto,54.Ifonlythepatient_adifferenttreatmentinsteadofusingtheantibodieshemightstillbealivenow.(2007)A.hadreceivedB.receivedC.shouldreceiveD.werereceiving65.ItisabsolutelyessentialthatWilliam_hisstudyinspiteoflearningdifficulties.(2007)A.willcontinueB.continuedC.continueD.continues,52.HadJudybeenmorecarefulonthemathsexam,she_muchbetterresultsnow.(2008)A.wouldbegettingB.couldhavegotC.mustgetD.wouldget52.Iftherewerenosubjunctivemood,English_mucheasiertolearn.(2009)A.couldhavebeenB.wouldbeC.willbeD.wouldhavebeen,60.Itisnecessarythathe_theassignmentwithoutdelay.(2010)A.handinB.handsinC.musthandinD.hastohandin61.Itsgettinglate.Idratheryou_now.(2011)A.leftB.leaveC.areleavingD.willleave,54.Whichofthefollowingsentencescontainssubjunctivemood?(2013)A.Lucyinsistedthathersongethomebefore5oclock.B.Sheusedtodrivetowork,butnowshetakesthecitymetro.C.Walkstraightahead,anddontturntillthesecondtrafficlights.D.PaulwillcancelhisflightifhecannotgethisvisabyFriday.,63.Ifit_tomorrow,thematchwouldbeputoff.(2013)A.weretorainB.wastorainC.wasrainingD.hadrained51.Itisessentialthathe_allthefactsfirst.(2014)A.isexaminingB.willexamineC.examinesD.examine,58.Ifyouexplainedthesituationtoyourlawyer,he_abletoadviseyoumuchbetterthanIcan.(2015)（对比2005)A.willbeB.wasC.wouldbeD.were,时态,基本时态：一般现在、一般过去、一般将来、现在进行、过去进行、将来进行、现在完成、过去完成、将来完成、现在完成进行、过去完成进行时、过去将来、,基本时态：一般现在、一般过去、一般将来、现在进行、过去进行、将来进行、现在完成、过去完成、将来完成、现在完成进行、过去完成进行时、过去将来、,Iwasdoingtheshoppingthismomentyesterday.,IwillbeflyingovertheAtlanticthismomenttomorrow.,ThetrainhadgonebeforeIarrived.,Theconstructionofbridgehadbeencompletedbytheyear2007.,Theconstructionofbridgewillhavebeencompletedbytheyear2010.,IhavebeenlearningEnglishfor10years.,真题展示：43.Forsometimenow,worldleaders_outthenecessityforagreementonarmsreduction.（2002）A.hadbeenpointingB.havebeenpointingC.werepointingD.pointed42.Jack_fromhomefortwodaysnow,andIambeginningtoworryabouthissafety.(2003)A.hasbeenmissingB.hasbeenmissedC.hadbeenmissingD.wasmissed,54.Monthsagowesailedtenthousandmilesacrossthisopensea,which_thePacific,andwemetnostorms.（1999）AwascalledBiscalledChadbeencalledDhasbeencalled52.I_ping-pongquitewell,butIhaventhadtimetoplaysincethenewyear.(1998)A.willplayB.haveplayedC.playedD.play,说明：常识告诉我们，一个人一旦获得某种技能，一般是不会在短期内失去的，所以需用一般现在时。,63.InhisplaysShakespeare_hischaracterslivethroughtheirlanguage.（2008）A.wouldmakeB.hadmadeC.madeD.makes62.BythetimeJanegetshome,heraunt_forLondontoattendameeting.(1999)A.willleaveB.leavesC.willhaveleftD.left55Thestudentsaidtherewereafewpointsintheessayhe_impossibletocomprehend.(2006)AhasfoundBwasfindingChadfoundDwouldfind,46.AIDSissaid_thenumber-onekillerofbothmenandwomenoverthepastfewyearsinthatregion.(2002)A.beingB.tobeC.tohavebeenD.havingbeenProfessorJohnsonissaid_somesignificantadvanceinhisresearchinthepastyear.(1999)A.havingmadeB.makingC.tohavemadeD.tomake60.Thatwasnotthefirsttimehe_us.Ithinkitshightimewe_strongactionsagainsthim.(2005)A.betrayedtakeB.hadbetrayedtookC.hasbetrayedtookD.hasbetrayedtake,附加习题1.SinceIwonthebigprize,mytelephonehasntstoppedringing.People_toaskhowIamgoingtospendthemoney.A.phoneB.willphoneC.werephoningD.arephoning2.Selectingamobilephoneforpersonaluseisnoeasytaskbecausetechnology_sorapidly.A.ischangingB.haschangedC.willhavechangedD.willchange,说明：选择移动电话难的原因是由于科技正在飞速发展，所以要用现在进行时；况且进行时态常给人一种情感上的描述，表示说话者的一种“感慨、赞赏、愤怒、斥责”等。,3.-Hi,Tracy,youlooktired.-Iamtired.I_thelivingroomallday.A.paintedB.hadpaintedC.havebeenpaintingD.havepainted4.Nowthatsheisoutofajob,Lucy_goingbacktoschool,butshehasntdecidedyet.AhadconsideredBhasbeenconsideringCconsideredDisgoingtoconsider,说明：这句话的意思是“我一整天都在刷起居室”，现在完成进行时表示从过去开始的一个动作一直持续到现在，而且还在进行当中。强调的是“一直在做”。,说明：她“一直在考虑返校”是现在完成进行时，“还没作决定”是现在的结果。,5.Thelittlegirl_herheartoutbecauseshe_hertoybearandbelievedshewasntevergoingtofindit.A.hadcried,lostB.cried,hadlostC.hascried,haslostD.cries,haslost6.Hurryup!AliceandSuearewaitingforyouattheschoolgate.Oh!Ithoughtthey_withoutme.AwentBaregoingChavegoneDhadgone,说明：哭得伤心发生在过去，而丢玩具熊发生在哭之前。两个发生在过去的动作，之前发生的用过去完成时，之后发生的用一般过去时。,说明：“他没叫我就走了”这个动作明显发生在“我认为”之前。所以必须用过去完成时。,7.-Youveleftthelighton.-Oh,soIhave._andturnitoff.A.IllgoB.IvegoneC.IgoD.Imgoing,说明：will和begoingto的区别,8.DidyoutellJuliaabouttheresult?Oh,no,Iforgot.I_hernow.AwillbecallingBwillcallCcallDamtocall,9.ThisisTedsphoto.Wemisshimalot.He_whentryingtosaveachildintheearthquake.A.killedB.iskilledC.waskilledD.waskilling10.Ifeelitisyourhusbandwho_forthespoiledchild.A.istoblameB.isgoingtoblameC.istobeblamedD.shouldblame,说明：不要被前面使用的现在时所蒙蔽，在地震中抢救小孩并献身的动作只能在过去。,说明：betoblame是固定结构，不能用被动语态。该句是一个强调句型。,主谓一致,大总结：agreatmany+可数名词复数谓语用复数manya+可数名词单数谓语用单数anumberof+可数名词复数谓语用复数thenumberof+可数名词复数谓语用单数themajorityof+可数名词复数谓语用复数each/every+可数名词单数谓语用单数neither/eitherof+可数名词复数谓语用单数morethanone+可数名词单数谓语用单数oneandahalf+可数名词复数谓语用单数,临近原则EitherorNeither.NorNotonlybutalsoNotbutTherebe,非临近原则aswellaswithtogetherwithalongwithratherthanbesides,改错！1.Thepresidentofthecompany,togetherwiththeworkerswhocomefromAmerica,areplanningaconferenceforthepurposeofsolvingthefinancialproblems.2.Thereareapen,aknifeandseveralbooksonthedesk.3.Eithertheprincipalorhisassistantsistoattendthemeeting.4.Theteacheraswellasthestudentslikethispainting.,集体名词cattle、folk、people、youth、police（通常用作复数）Thepolicehavecaughtthemurderer.ThepeoplewhomyoumetinthecampusyesterdayarefromEngland.army,audience、class、club、committee、company、crowd、family、party、staff、team（根据意思决定单数、复数）ThecommitteemeeteveryMonday.Heisonthecommitteethatcontrolspublicspending.Hisfamilyisntverylarge.(对比Hisfamilyaremusiclovers.),表示时间、重量、长度、距离、价值等单位的名词以及概念上属于整体的一个单元的名词虽然形式上是复数，但谓语动词仍用单数形式。Tenyearsisonlyamomentinhistory.Twocopiesisenough.Threehoursisnotalongtimetowait.,书名、电影名或格言等专有名词做主语,如果主语是一本书的名字、电影的名字或一个格言等专有名词，谓语动词用单数。“GonewiththeWind”isaninterestingnovel.“TheScentofaWoman”isanawardedfilm.NoPains,NoGainsisawidelyquotedproverb.,学科名词做主语,表示学科名称的名词如physics,mathematics,economics,politics,electronics,statistics做主语，虽然形式上以复数结尾,但应为单数,谓语动词多用单数。Inmyopinion,physicsisadifficultsubject.Politicsisaninterestingtopicformanymen.,并列结构作主语时的主谓一致,Eggandmilkisagoodbreakfast.(这里的鸡蛋和牛奶都指一顿早饭，不可分割)Fishandchips(炸鱼土豆片)isapopularsupperhere.当and连接的并列名词词组带有each,every或者manya等限定词时，随后动词常用单数Manyamanandwomaninthiscommunityfindshimselforherselfinneed.Everyboyandgirlintheclassisgivenacopyofthephoto.主语后跟有由asmuchas,ratherthan,morethan,nolessthan,aswellas,inadditionto,with,alongwith,togetherwith,except等引导的结构或词组，取决于主语本身形式。,Whatsmore?Heisoneofthestudentsinourclasswho(have/has)passedtheCET-4.Heistheonlyoneofthestudentsinourclasswho(have/has)passedtheCET-6.,真题展示：62Thestatistics_thatlivingstandardsintheareahaveimproveddrasticallyinrecenttimes.(2006)AprovesBisprovingCareprovingDproveStatisticsisnotasdifficultassomepeoplethink.52.AllthePresidentsMen_oneoftheimportantbooksforhistorianswhostudytheWatergateScandal.(2007)A.remainB.remainsC.remainedD.isremaining,50.Itisfutiletodiscussthematterfurther,because_goingtoagreeuponanythingtoday.(2003)A.neitheryounorIareB.neitheryounormeisC.neitheryounorIamD.neithermenoryouare51.MrWells,togetherwithallthemembersofhisfamily,_forEuropethisafternoon.(2004)A.aretoleaveB.areleavingC.isleavingD.leave,非谓语动词,非谓语动词考点总结,不定式动名词分词,不定式：在Its+adj.结构中都用不定式作主语。注意两种句型：Itseasy(difficult,hard,important,possible,impossible,comfortable,necessary,toomuch,toolittle,notenough)后加forsb.todoItskind(nice,stupid,rude,clever,foolish,thoughtful,thoughtless,brave后加ofsb.todo,动名词：1.必须接动名词做宾语的动词acknowledge,advocate,anticipate,appreciate,avoid,admit,confess,consider,escape,excuse,fancy,favor,finish,forgive,practice,postpone,recall,risk,resist,suggest,tolerate。如：Iappreciatehavingbeengiventheopportunitytostudyabroad.2.动名词做介词短语(to是介词，不是不定式符号)objectto,resortto,reactto,contributeto,lookforwardto,beaccustomedto,becommittedto,bedevotedto,bededicatedto,beopposedto,be(get)usedto,getdownto,taketo,inadditionto,withregardto,onthewayto。Iamlookingforwardtovisitingyourhometown.,分词：如果非谓语动词跟句子中的逻辑主语呈主动关系，用现在分词doing.如果非谓语动词跟句子中的逻辑主语呈被动关系，用过去分词done.see1._fromthemountain,weshouted“howareyoudoing”.2._fromthemountain,thecitylooksmuchmorebeautiful.Win/defeat1._inthewar,thestatebegantobreakdown.2._thewar,thecountrybegantoestablishitsownfinancialandpoliticalsystems.,现在分词作状语特性-时间性。与谓语动词同时发生，用一般时doing，发生在谓语动作之前时则用完成式havingdone。WatchingVSHavingwatched1._themovie“Titanic”,hecouldnthelpcrying.2._themovie“Titanic”for5times,herefusedtogothecinemawithme.LivingVSHavinglived1._inChinafortenyears,hetookaChinesegirlashiswife.2._inasmallcountrysideinChina,hespentallhistimeingardening.,分词的独立主格结构分词的逻辑主语一般为句子的主语，否则分词短语要有自己的逻辑主语，称为分词独立主格结构。分词独立主格结构只是句子的一个部分。如：Allflightshavingbeencanceledbecauseofthesnowstorm,wedecidedtotakethetrain.Darknesssettingin,theyoungcouplelingeredinthebar.,Itbeing+名词（代词）ItbeingChristmas,thegovernmentofficeswereclosed.Itbeingaholiday,alltheshopswereshut.(1)Hewrotealotofnovels,manyof_translatedintoforeignlanguages.A.itB.themC.whichD.that(2)Hewrotealotofnovels,manyof_weretranslatedintoforeignlanguages.A.itB.themC.whichD.that(3)Hewrotealotofnovels,andmanyof_weretranslatedintoforeignlanguages.A.itB.themC.whichD.that,therebe非谓语动词的用法(1)做目的状语或程度状语时用fortheretobe，做其他状语用therebeing。如：Fortheretobeapleasantperformance,youmustpracticemore.(fortheretobe在句中做目的状语)Therebeingnofurtherquestions,wellstopheretoday.(therebeing做原因状语)(2)做除for外的介词宾语，用therebeing。如：Hewouldalwaysignorethefactoftherebeingsuchacontradictioninhisinnerthought.个人总结：有for,用theretobe,其他都用therebeing。,真题展示：45.There_nothingmorefordiscussion,themeetingcametoanendhalfanhourearlier.（2000）A.tobeB.tohavebeenC.beingD.be41.Agricultureisthecountryschiefsourceofwealth,wheat_byfarthebiggestcerealcrop.（2003）A.isB.beenC.beD.being48.Time_,thecelebrationwillbeheldasscheduled.（2003）A.permitB.permittingC.permittedD.permits,51._atinthisway,thepresenteconomicsituationdoesntseemsogloomy.（2000）A.LookingB.LookedC.HavinglookedD.Tolook64._atinhisway,thesituationdoesntseemsodesperate.（2007）A.LookingB.LookedC.BeinglookedD.Tolook,51._isnotaseriousdisadvantageinlife.（2001）A.TobenottallB.NottobetallC.BeingnottallD.Notbeingtall47.Theopeningceremonyisagreatoccasion.Itisessential_forthat.（2003）A.forustobepreparedB.thatwearepreparedC.ofustobepreparedD.ourbeingprepared,Todieforthepeopleisagloriousdeath.,61.Whatsthechanceof_ageneralelectionthisyear?（2005）A.therebeingB.theretobeC.therebeD.theregoingtobe63.Itisnotuncommonforthere_problemsofcommunicationbetweentheoldandtheyoung.（2007）A.beingB.wouldbeC.beD.tobe,情态动词,情态动词的考点1、can;must;cant;mustnt区别2、shall;should的特殊用法(不止一种用法）3、对过去的推测和虚拟用法；(+havedone),can;must;cant;mustnt区别,cant表示语气较强的不可能must表示语气较强的肯定需要注意的是can也可以表示可能性，但只表示一时的可能性。Hecantbeathome.Hemustbeathome.Shecanbeverygentle/mean/rude/sensitive.Lifeisjustlikeaboxofchocolate,youneverknowwhatyougonnaget.Sometimesitcanbeverytough,andsometimeitcanbeverypeaceful.Thoughheistravellingalltheyeararound,hecanbeathomesometimesinwinter.,1.You_behungryalreadyyouhadlunchonlytwohoursago!A.wouldntB.cantC.mustntD.neednt2.Peter_bereallydifficultattimeseventhoughheisanicepersoningeneral.A.shallB.shouldC.canD.must3.ItisusuallywarminmyhometowninMarch,butit_berathercoldsometime.A.mustB.canC.shouldD.would4.TheWorldWideWebissometimesjokinglycalledtheWorldWideWaitbecauseit_beveryslow.A.shouldB.mustC.willD.can5.Johnny,you_playwiththeknife,you_hurtyourself.A.wont,cantB.mustnt,mayC.shouldnt,mustD.cant,should,shall和should的用法,Shall两种用法1.Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见或向对方请示。如：Shallwego?Shallwebeginourlesson?Whenshallhebeabletoleavethehospital?2.Shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。如：Youshallfailifyoudontworkharder.（警告）HeshallhavethebookwhenIfinishreading.（允诺）Youshallbepunishedifyouruntheredlight.（威胁）,Should四种用法1.Should表示劝告、建议、命令，其同义词是oughtto；在疑问句中，通常用should代替oughtto。如：Youshouldgotoclassrightaway.ShouldIopenthewindow?2.should也可以表示可能，翻译成中文通常为“照理、按理应该”。ThisEnglishtestshouldnotbeverydifficultforyousinceyouhavelearneditformorethan5years.Youshouldbemarriedsinceyouare32yearsold.,3.Should还可以用在if引导的条件从句，表示一件事听起来可能性很小，但也不是完全没有可能。相当于“万一”的意思。如：AskhertocallmeifyoushouldseeherinTokyo.你万一在东京见到她，请让她给我打个电话。Ifyoushouldchangeyourmind,pleaseletusknow.万一你改变主意，请通知我们。4.Why(orHow)+should结构表示说话人对某事不能理解，感到意外、惊异等意思。意为“竟会”。如：Whyshouldyoubesolatetoday?你几天怎么来得这么晚？WhereisBettyliving?贝蒂住在哪里？HowshouldIknow?我怎么会知道呢？Idontknowwhyyoush