earlier-before-ago区别-2015年高考卷(全国1)语法填空A-few-hours-

1从2015年高考卷（全国1）语法填空Afewhours__62___谈ago/before/ago区别2015年高考卷（全国1）语法填空ItwasraininglightlywhenI61(arrive)inYangshuojustbeforedawn.ButIdidn’tcare.Afewhours__62___,I’dbeenathomeinHongKong,with__63__(it)chokingsmog.Here,theairwascleanandfresh,evenwiththerain.61arrived62.before/earlier(不能填ago)63.itsearlierbeforeago用法区别afewhoursearlier和afewhoursago的区别在新概念第二册的Lesson7里,有这么一段话,Afewhoursearlier,someonehadtoldthepolicethatthieveswouldtrytostealthediamonds中Afewhoursearlier为什么不能用afewhoursago替afewhoursearlier和afewhoursago的区别在新概念第二册的Lesson7里,有这么一段话,Afewhoursearlier,someonehadtoldthepolicethatthieveswouldtrytostealthediamonds中Afewhoursearlier为什么不能用afewhoursago替换呢?这俩个短语有什么区别,分别用在什么情况下,TooLateafewhoursearlier,时间段和earlier一起使用,是以过去或将来某一个时间点为准的一段时间以前在本文中的意思可以扩展成下列句子afewhoursearlierthanthetimewhenthedetectiveswerewaitingattheairport.在侦探们等在飞机场之前的几个小时以前.例如:WhenIgottoschoolyesterday.Ididn'tseeJim.Butonehourearlier,hetoldmeonthephonehehadbeenthere.当我到学校的时候,我没有看到Jim.可是(在我到学校)一个小时前,他在电话里说他在那里afewhoursago时间段和ago一起使用,指的是以说话时为准的一段时间以前.用在一般过去时NowIamathome.ButIwasintheofficethreehoursago.又例如:Oh?Whyareyouheresosoon?Isawyouinthemarkettenminutesago.你怎么这么快就来了?十分钟前我还看到你在市场了呢.本文中不可以替换,这课说的是钻石被偷换成石头和沙子,是以故事的形式表现的.全文用过去的口吻.第一句就看的出.Theplanewaslate.所以从现在的角度叙述这个故事.一切的发生应该以故事中的过去的情景为时间基点.如果非要替换的话,可以替换成before,时间段和before一起用表示的是以过去某一个时间为基准的一段时间以前.经常出现在直接引语改写成间接引语题目中.例如:Hetoldme,Iwasherethreedaysago.改写成:Hetoldmethathehadbeentherethreedaysbefore.用了半个多小时回答你的问题,好辛苦.不求你采纳,但求能够帮助你.就象帮助我的学生们一样.IwasansweringyourquestionmorethanhalfanhourAGO.Tillnow,Ihavefinished.AboutsixteenhoursEARLIER,youhadraisedthequestionhere.半个多小时以前,我在回答你的问题.到现在为止,已经回答完毕．你是在(我回答问题的)大约十六个小时以前提出这个问题的.祝你英语蒸蒸日上!ago/before的用法标签：一般过去时过去完成时先后关系介词现在完成时分类：英文语法选ago/before的用法'ago'-atacertaintimebeforenowAgo与现在相关，从现在往前算有多久，也常与一般过去时连用:Yourmotherphonedfiveminutesago.Canyouphoneherback?IsawherforthefirsttimeatfilmfestivalinCannessometwentyyearsago.'before'-anytimebeforenow/atacertaintimebeforethenBefore与过去特定之前的时间相关（此时可换用earlier或previously），也可表示现在之前的不确定的时间；连用的时态可以是1.常用现在完成时；2.一般过去时也可以，但稍少见2ŸIknowthatchap.I'vemethimsomewherebefore.ŸHaveyoubeenherebefore?~No,I'veneverbeenherebefore.Thisismyfirsttime.ŸIknowthatchap.Imethimsomewherebefore.ŸWereyouherebefore?~No,Iwasneverherebefore.Thisismyfirsttime.ŸImethimattheAIDSconferenceinDurbaninDecember2002whenhetoldmethathehadcontractedAIDSfouryearsbefore.(=6yearsago)ŸLastyearIwentbacktomyhometownthatIhadlefttenyearsbeforeanddiscoveredthatthehouseIgrewupinwasnolongerstanding.(=lefthome11yearsago)ŸLastyearIreturnedtomyhometownthatIhadlefttenyearsagoanddiscoveredthatthehouseIgrewupinhadbeendemolished(=lefthome10yearsago)'before'–可用作连词，介词及副词注意before是指事件的先后关系，除了用于过去的事件，也可以用于将来的事件；还可以用于现在的一般习惯性事件TheyleftthediningtablebeforeIhadfinishedmymeal.Howrudeofthem!Hekneltdowntosayhisprayersbeforehegotintobed.IshallreadallthereportsbeforeIdecidewhatactiontotake.IalwaysshavebeforeItakeashower.Youmusttakeoffyourshoesbeforeyouenterthemosque.如果before用作介词，它常用于指时间，不太用于指地点位置（可以用infrontof）:Tostayyoungandbeautiful,trytogettobedbeforemidnighteachnight.Tostayinshape,Itrytogoforajogandaswimintheseaeverymorningbeforebreakfast.ThereweresomanytallpeopleinfrontofmethatIcouldseenothingoftheprocessionasitpassedby.【例子】“Lifeinsurance,beforeavailableonlytoyoung,healthypersons,cannowbeobtainedforoldpeopleandevenforpets.”这里before虽然不是指地点，但却极不自然，可以换用previously,formerly,once,atonetime等.Ago/before关系的参考图：leftvisitedNOW●＿＿＿＿＿＿＿＿＿●＿＿＿＿＿＿＿＿＿●↑↑＿＿＿＿＿＿＿＿＿|↑＿＿＿＿＿＿＿＿＿|twoyearsAGOtwoyearsBEFOREIvisitedmyhometowntwoyearsago.Twoyearsago,Ivisitedmyhometown,whichIhadlefttwoyearsbeforeThreeweeksbeforeIvisitedJapan,Iboughtanewsuitcase先考虑这句话正确与否：Wewenttothesamehotelwherewestayedtwoyearsbefore.【案例1】Imetyoutwoyearsago.转变成间接引语:Hesaidthathehadmetmetwoyearsbefore似乎天经地义，语法正确，但语义并准确，before还是用ago好，用earlier也行。不能说ago一定不能与过去完成时连用，如Iknewwehadmettenyearsago.就是很正常的句子3假设你于2004年度假时遇到某人，2006年有来到该地并再次看到了他；现在是2007年，那么：Hetoldmewehadmetthreeyearsago=Hetoldmewemetthreeyearsearlierintimefromnow;inotherwords,in2004.（现在往前算）Hetoldmewehadmettwoyearsbefore=Hetoldmewehadmettwoyearsearlierintimefromthen;inotherwords,in2004.（06年再往前算）这里两句所指的，都是同一个事件.【案例2】Hesaidhehadmetmethreeyearsago/before.本句用ago自然，用before听着会问，“beforewhat”?如，HesaidhehadmetmethreeyearsbeforeIleftforGermany.Hemetmethreeyearsago-fromnow.Hemetmethreeyearsbefore(orearlier).-fromamomentthathasbeenestablishedinthecontext.用before也不一定要接上完整的细节,但那样不接，大多情况下给人的感觉会是不完整的Fiveyearsago是指从说话时往前算的5年Fiveyearsearlier指从说到的某时候(一般是过去)再往前算5年&很多speakers把fiveyearsago当成fiveyearsearlier用.Fiveyearsbeforesomething.最好说'fiveyearsbeforeImarried...'或'fiveyearsbeforeImovedtoIndia..'（加上了细节）A)Igotamessage5daysago–这句语义完整.从现在往前算5天得到信息（假定今天是7号，收到信息是2号。注意实际日常生活中，人们更多地会用IgotthemessageonSunday这样带具体日子的句子）B)Igotamessage5daysbefore-beforewhat?这里需要一个宾语说清楚，哪怕是暗示的也可以.Eg:Igotamessage5daysbeforeChristmas.Igotamessage5daysbeforemyinterview.IspoketoJimonFriday.I'dgotamessage5daysbefore(IspoketoJimonFriday)A)的意思是你在5天前得到消息meansyougotthemessagefivedaysbeforetoday.B)的意思5天前与某个曾提到的日子.Charliegotamessageonthe10thofDecember.Igotamessagefivedaysbefore(o