高三英语状语从句考点专题复习.ppt

从句 SubordinateClause 是复合句中不能独立成句 但具有主语部分和谓语部分 由that who whom when why where how which等引导词引导的非主句部分 从句不能单独成句 但它也有主语部分和谓语部分 是一个特殊句子 就像一个句子一样 所不同在于 从句须由一个关联词 connective 引导 根据从句语法功能的不同可分为 主语从句 表语从句 宾语从句 同位语从句 名词性 定语从句 形容词性 和状语从句 状语性质 6类 主语从句 表语从句 宾语从句 同位语从句 名词性从句 Whatweneedistime Thequestioniswhenwecanarriveatthehotel Idon tthinkyouareright Iheardthenewsthatourteamhadwon 定语从句是由关系代词或关系副词引导的从句 其作用是作定语修饰主句的某个名词性成分 相当于形容词 所以又称为形容词性从句 一般紧跟在它所修饰的先行词后面 Thedogthat whichwaslosthasbeenfound 状语说明地点 时间 原因 目的 结果 条件 方向 程度 方式和伴随状况等 状语一般由副词 介词短语 分词和分词短语 不定式或相当于副词的词或短语来担当 状语 1 副词一般在句子中做状语 HespeaksEnglishverywell 他英语说得非常好 Heisplayingunderthetree 中的underthetree是地点状语 2 不定式在句子中可以作目的状语 Icomespeciallytoseeyou 我专门来看你 3 介词短语Tenyearsago ShebegantoliveinDalian Theboywaspraisedforhisbravery 4 从句作状语Whenshewas12yearsold shebegantoliveinDalian IfIamnotbusytomorrow Iwillplayfootballwithyou 5 分词作状语Havinghadaquarrelwithhiswife helefthomeinabadtemper Inhibitedinonedirection itnowseemsthattheMississippiisabouttotakeanother 状语从句 AdverbialClause 在复合句中作状语的从句 叫做状语从句 句子用作状语时 起副词作用 状语从句主要用来修饰主句或主句的谓语 AdverbialClauses 时间 when while as after before since until till once assoonas themoment immediately一 就 each everytime bythetime 地点 where anywhere everywhere 原因 because since as nowthat 既然 条件 if unless suppose 假设 incase 以防 so as longas 只要 onconditionthat 条件是 让步 al though as evenif eventhough nomatter ever 目的 sothat inorderthat 结果 sothat so that such that 方式 as asif asthough 好像 比较 than as as The the 时间状语从句常用连词 when while as since before till until not until assoonas immediately themoment theminute directly instantly nosooner than hardly scarcely when each everytime nexttime 直到 当 的时候 自从 以来 还没 就 一 就 在 之前 刚 就 每次 下次 必须用when的情况 Wewereabouttogooutwhentheteachercamein 我们正要出去 突然老师进来了 Weweredoingourhomeworkwhentheteachercamein 我们正在写作业时 突然老师进来了 beabouttodosth when bedoingsth when 1 when while as 1 当 时Whilehewaswalkinginthestreet hemetTim 时间状语从句 Whilewalkinginthestreet hemetTim 现在分词作状语 Walkinginthestreet hemetTom 省略while 2 然而 表对比 Iliketeawhileshelikescoffee 必须用while的情况 3 虽然 但是 表让步 Whilevolleyballishermainfocus she salsogreatatbasketball Asthesunrose thefogdispersed Astimesgoes it sgettingcolder 经常用as的情况 强调主从句动作同时发生有 随着 或 一边 一边 的意思 Iwaswalkingdownthestreet Inoticedapolicecarinfrontofthestore Johnarrived Iwascookinglunch hegrewolder helostinterestineverythingexceptgardening Iwaswanderingthroughthestreet Icaughtsightofatailor sshop While When As When when when As Exercise 1 还未 就 不到 就 Wehadsailedfourdaysandfournightsbeforewesawland 我们航行了4天4夜才看到陆地 Wehadn trunamilebeforehefelttired 我们跑了还不到一英里他就累了 BeforeIcouldgetinaword hehadmeasuredme 我还没来得及插话他就给我量好了尺寸 2 before since I before 2 从句中谓语不用否定式Beforetheyreachedthestation thetrainhadgone 他们还没到火车站 火车已开走了 3 Itwillbe 一段时间 before 多久之后才 ItwillbehalfayearbeforeIcomeback 还得呆半年我才能回来 Itwon tbelongbeforewemeetagain 没多长时间我们就会见面了 2 before since 1 从句的谓语动词一般是非延续性动词 主句的谓语动词是延续性的或者是反复发生过的动作 Since从句的时态若是一般过去时 从句时态是现在完成时或现在完成进行时 IhavewrittenhomefourtimessinceIcamehere 自从我来到这儿 我给家写了四封信 Shehasbeenworkinginthisfactorysincesheleftschool 她离开学校以来就在这个工厂工作 II since 2 before since 2 Itis 一段时间 since从句时间从since从句的动作完成或状态结束时算起 Itisthreeyearssincethewarbrokeout 自战争爆发以来有三年了 ItisthreeyearssinceIstoppedsmokingacigar我不吸烟有三年了 ItisthreeyearssinceIbegantosmoke 我吸烟有三年了 2 before since 1 TheresearchwilltakeJoanandPaulaboutfivemonths itwillbealongtime wemeetthemagain A afterB beforeC sinceD when2 Wehaveneverseenheragain shewenttoworkinanothercity A whenB asC sinceD while3 Hewastoldthatitwouldbeatleastthreemoremonths hecouldrecoverandreturntowork A whenB beforeC sinceD that Exercise Until比till更正式Until可以放句首 till不可以 Iwon tleaveuntil tillhecomesback Iwillstayheruntil tillhecomesback Untilhecomesback Iwon tgo Itwas thatIleft Notuntil notuntilhecameback hecomesbackwillIleave 3 till until not unitl 4 assoonas immediately themoment theminute directly theinstant instantly nosooner than hardly scarcely when Assoonasheenteredtheclassroom thebellrang Hehad whenthebellrang Hehad thanthebellrang hardlyenteredtheroom nosoonerenteredtheroom Hardly Scarely whenthebellrang hadheenteredtheroom 5 each everytime nexttime thefirst lasttime anytime allthetime bythetime EachtimeIwasintrouble hewouldcometohelpmeout Besuretocallmenexttimeyoucomehere HewasillthelasttimeIvisitedhim BythetimeIgraduatefromthisschool Iwillhavebeenhereforthreeyears Summary 1 IwassofamiliarwithhimthatIrecognizedhisvoice Ipickedupthephone whileB afterC IncaseD theminute2 Howlongdoyouthinkitwilltake ourproductbecomespopularwiththeconsumers whenB untilC beforeD since Exercise 3 thedaywenton theweathergotworse WithB sinceC AsD While4 Hewashalfwaythroughhismeal afamiliarvoicecametohisears whyB whereC whenD while5 Hardly intothevillage itbegantorain wehadgot whenB wegot thanC hadwegot whenD didweget than Exercise Practice 1 Howlonghasthisbookshopbeeninbusiness 1999 A AfterB InC FromD Since2 MotherwasworriedbecauselittleAlicewasill especially FatherwasawayinFrance A asB thatC duringD if3 Iamgoingtothepostoffice You rethere canyougetmesomestamps A AsB WhileC BecauseD If4 Someonecalledmeupinthemiddleofthenight buttheyhungup Icouldanswerthephone A asB sinceC untilD before D A B D 5 DidyouremembertogiveMarythemoneyyouowedher Yes Igaveittoher Isawher A whileB themomentC suddenlyD once6 Agoodstorytellermustbeabletoholdhislisteners curiosity hereachestheendofthestory A whenB unlessC afterD until7 Generallyspeaking accordingtothedirections thedrughasnosideeffect A whentakingB whentakenC whentotakeD whentobetaken B D B 8 Washisfatherverystrictwithhimwhenhewasatschool Yes Hehasneverpraisedhim hebecameoneofthetopstudentsinhisgrade A afterB unlessC untilD when9 Hemadeamistake butthenhecorrectedthesituation itgotworse A untilB whenC beforeD as10 Scientistssayitmaybefiveorsixyears itispossibletotestthismedicineonhumanpatients A sinceB afterC beforeD when11 Itwasevening wereachedthelittletownofWinchester A thatB untilC sinceD before C C C D 12 modelingbusinessisbynomeanseasytogetinto thegoodmodelwillalwaysbeindemand A WhileB SinceC AsD If13 Wewereswimminginthelake suddenlythestormstarted A whenB whileC untilD before14 Weweretoldthatweshouldfollowthemainroad wereachedthecentralrailwaystation A wheneverB untilC whileD wherever A A B 15 Severalweekshadgoneby Irealizedthepainting wasmissing A asB beforeC sinceD when16 Jasminewasholidayingwithherfamilyinawildlifepark shewasbittenonthelegbyalion A whenB whileC sinceD once17 Itisalmostfiveyears wesaweachotherlasttime A beforeB sinceC afterD when18 Simonthoughthiscomputerwasbroken hislittlebrotherpointedoutthathehadforgottentoturniton A untilB unlessC afterD because B A B A 20 DidJackcomebackearlylastnight Yes Itwasnotyeteighto clock hearrivedhome A beforeB whenC thatD until21 Howlongdoyouthinkitwillbe Chinasendsamannedspaceshiptothemoon Perhapstwoorthreeyears A whenB untilC thatD before22 Youcan thavethisfootballback youpromisenottokickitatmycatagain theoldmansaidfirmly A becauseB sinceC whenD until B D D Test 1 Ihadjuststeppedoutofthebathroomandwasbusilydryingmyselfwithatowel Iheardthesteps A whileB whenC sinceD after2 Thatwasreallyasplendidevening It syears Ienjoyedmyselfsomuch A whenB thatC beforeD since3 Whydidn tyoutellhimaboutthemeeting Herushedoutoftheroom Icouldsayaword A beforeB untilC whenD after 4 ThefieldresearchwilltakeJoanandPaulaboutfivemonths itwillbealongtime wemeetthemagain A afterB beforeC sinceD when5 Hewastoldthatitwouldbeatleastthreemoremonths hecouldrecoverandreturntowork A whenB beforeC sinceD that6 Itisdifficultforustolearnalessoninlife we veactuallyhadthatlesson A untilB afterC sinceD when 7 I msorryyou vebeenwaitingsolong butit llstillbesometime Briangetback A beforeB sinceC tillD after8 AreyoureadyforSpain Yes Iwantthegirlstoexperiencethat theyareyoung A whileB untilC ifD before9 Iusedtolovethatfilm Iwasachild butIdon tfeelitthatwayanymore A onceB whenC sinceD although10 10 Jerryrushedhome heheardthenew only thathiswifewasgone A assoonas findingB immediately tofindC themoment findD when found 10黑龙江 2 地点状语从句 地点状语从句用连接副词where或wherever 在任何地方 引导 e g a Juststaywhereyouare b Youcanputthebookwhereveryouwantto Whenhereadsabook hishabitistomakeamark themeaningisuncleartohim A thereB whereverC theplaceD inwhich2 Ifyouaretravelling thecustomsaretotallydifferentfromyourown youmayfeelaculturalshock A intheplaceB whichC inwhichD where 3 原因状语从句 原因状语从句表示主句中的某一动作或状态所发生的原因 引导这种从句常用的连接词是 because since as for nowthat及considering等 e g Hedidn tcometoschoolbecausehewasill c f Hemightbeill forhedidn tcometoschool 表示 直接 原因 表示 间接的推断 原因 不可出现在句首 JennywasverysadoverthelossofthephotosshehadshotatCanada thiswasamemorysheespeciallytreasured A asB ifC whenD where2 Somepeoplebelievethat oilisrunningout thefateofthemotorindustryisuncertain A B thoughC forD since 4 条件状语从句 条件状语从句表示主句中的某一动作或状态是在什么情况或条件下发生的 条件状语从句中通常用一般现在时表示将来 条件状语从句由从属连词引导 if unless 除非 as solongas 只要 oncondition 只要 incase 假使 providing provided that 等 e g a We llcomeovertoseeyouonSaturdayifwehavetime b Weshouldservethepeopleas solongaswelive 1 Wewillbeabletogetthereontime ourcardoesn tbreakdownontheroad assoonasB asfarasC aslongasD aswellas2 Intimeofseriousaccidents weknowsomebasicthingsaboutfirstaid wecansavelives whetherB untilC ifD unless 3 youhavetriedit youcan timaginehowpleasantitis A UnlessB BecauseC AlthoughD When4 Theofficialsoonrealizedthat thingswouldgetworse unlessdealtwithproperlyifnotproperlydealingwithitunlessproperlydealtwithifdealtnotproperlywith 5 让步状语从句 在复合句中表示让步概念的状语从句被称为让步状语从句 通常由下列词语引导 though although evenif eventhough while nomatterwho however等 由wh 词 ever构成的连接代词或连接副词也可以引导让步状语从句 让步状语从句可以位于主句前 后 有时插在主句中间 e g a Iwillgo whateverhemaysay b Theirtent though itwas lightasafeather remainedfirm c Though Althoughhewasold heworkedhard Hewasoldbutheworkedhard 注意一个典型的中国错误 though although切不可与but连用 Iacceptthatheisnotperfect Idoactuallyliketheperson WhileB sinceC BeforeD Unless2 Theworkersaredeterminedtogothroughwiththeirrailwayproject theexpenseshaverisen aslongasB eventhoughC nowthatD asthough 3 heknowsmorethanotherchildrenofhisage A HoweveryoungchildheisB ChildasheisC NomatterhowyoungchildisD Whatayoungchildheis4 Ireallywantthematch howevermuch A doesitcostB costsitC willitcostD itcosts 5 wehavefinishedthecourse weshallstartdoingmorerevisionwork FornowB NowthatC BynowD until6 theideaofhavingtoworkunderawomandefeatedhim WantingthejobverymuchAlthoughwantingthejobbadlyThoughhewantedthejobverymuchHewantedthejobbadly 6 目的状语从句 引导目的状语从句的连词 inorderthat 用于正式文体中 所引从句可于主句前或后 sothat a 较常用 一般用于主句后 有时可分开 so有时可省 从句中要有情态动词 否则 就成为下一种句型 b 无情态动词则引导结果状语从句 forfearthat incase lest 以免 等 e g a We llsitnearerthefrontsowecanhearbetter b IshallwriteitdownlestIshouldforget 注意 当从句与主句的主语一致时 可用soastodo 或inordertodo e g Heranfastsothathemightarrivetherebeforeteno clock Heranfastsoastoarrivetherebeforeteno clock 7 结果状语从句 结果状语从句常位于主句之后 由so so that such that sothat等引导 e g a SoquicklydidherunthatIcouldn tcatchupwithhim b Thebusbrokedownsothatwehadtowalkhome c Hegottothestationfinally onlytofindthetrainhadleft 8 方式状语从句 描述主句动作进行方式的状语被称为方式状语 通常用下列词语引导 as justas asif asthough accordingto等 e g a WemustdoasthePartytellsus b Leavethethingsastheyare c Mostplantsneedsunlightjustastheyneedwater d Itsoundsasifitisraining 9 比较状语从句 比较状语从句常由下列词语引导 as as notso as as more than less than themore adj adv themore adj adv e g a Heisnotso ashealthyashisbrother b Theyjumpedupanddownashardastheycould c JohnislesscleverthanPeter Rosesneedspecialcare theycanlivethroughwinter becauseB sothatC evenifD as2 Ifthingsareleft theyare theproblemswillneverbesettled I mafraid howB asC whatD where 3 Carefulsurveyshavepointedoutthatasmanyas50percentofthepatientsdonottakedrugs directed likeB soC whichD as4 Idarenotgothere myparentswillseeme incaseofB forfearofC inorderthatD forfearthat 误区警示 Translation 1 一旦你掌握了这种方法 你就会觉得很有用场 2 他做完了家庭作业后 出去玩了 3 在有问题的地方作个记号 4 武汉位于长江和汉江交汇处 5 因为我喜欢 所以我把这事给做了 6 既然大家都在这儿 那我们一起讨论一下 然后作个决定 Onceyoumasterthismethod you llfindit squiteuseful Afterhefinishedhishomework hewentouttoplay Makeamarkwhereyouhaveaquestion WuhanlieswheretheYangtzeRiverandtheHanRivermeet IdoitbecauseIlikeit Nowthateveryoneishere let shaveadiscussionandthenmakeadecision 7 只要我们不灰心 我们会找出解决困难的办法来的 8 如果天气允许的话 我就会去那儿 9 虽然我们缺少人手 但我们会想法按时完成工作的 10 他虽然是个孩子 但懂得很多 11 无论有多远 今晚我都会开车去那儿的 Aslongaswedon tloseheart we llfindawaytoovercomethedifficulty Ifweatherpermits Iwillgothere We lltrytofinishtheworkintimethough althoughwe reshortofmanpower Childasheis heknowsalot Howeverfaritis Iintendtodrivetheretonight 12 让我们坐到前面的座位上 以便能看得更清楚些 13 最好多带些衣服 以防天气转冷 14 为了赶上早班车 他起了个大早 15 他起了个大早 结果赶上了早班车 16 我们匆匆忙忙地离开 忘了锁门 17 他反应那么快 没人能和他相比 Let stakethefrontseatssothatwecanseemoreclearly Bettertakemoreclothesincasetheweatherturnscold Hegotupveryearlysothat inorderthathemight couldcatchtheearlybus Hegotupveryearlysothathecaughttheearlybus Weleftinsuchahurrythatweforgottolockthedoor Hereactssoquickly that noonecanmatchhim 18 你必须按照我说的去做 19 他的表现好像什么都没发生 20 他回答得和他姐姐一样快 21 他比他姐姐快 22 你练得越多 你就会更好 YoumustdoasItellyouto Heactedasif though nothinghadhappened Heanswersasquicklyashissister does Heisquickerthanhissister is Themoreyoupractise thebetteryouwillget be Multiplechoice 1 Iwenttotherailwaystationtoseemyfriendoff 1991 A AftereatingquicklymydinnerB AftermyquicklyeatingdinnerC AftereatingmydinnerquicklyD Aftereatingmyquicklydinner2 Althoughheisconsideredagreatwriter A hisworksarenotwidelyreadB buthisworksarenotwidelyreadC howeverhisworksarenotwidelyreadD stillhisworksarenotwidelyread 1991 C A 3 Youwillbelateyouleaveimmediately 1992 A unlessB untilC ifD Or4 Whatwasthepartylike 1993 Wonderful It syears Ienjoyedmyselfsomuch A afterB beforeC whenD since5 MotherwasworriedbecauselittleAlicewasill especially FatherwasawayinFrance 1994 A asB thatC duringD if6 ShethoughtIwastalkingaboutherdaughter infact Iwastalkingaboutmydaughter 1995 A whenB whereC whichD while A D A D 7 Whenapencilispartlyinaglassofwater itlooksasifit 1995 A breaksB hasbrokenC werebrokenD hadbeenbroken8 Ifweworkwithastrongwill wecanovercomeanydifficulty greatitis 1995 A whatB howC howeverD whatever9 AfterlivinginParisforfiftyyears hereturnedtothesmalltown hegrewupasachild 1996 A whichB whereC thatD when C C B 10 Afterthewar anewschoolbuildingwassetup therehadoncebeenatheatre 1997 A thatB whereC whichD when11 Whydoyouwantanewjob you vegotsuchagoodonealready 1998 A thatB whereC whichD when12 I mgoingtothepostoffice you rethere canyougetmesomestamps A AsB WhileC BecauseD If 1999 B D B 13 you vegotachance youmightaswellmakefulluseofit 1999 A NowthatB AfterC AlthoughD Assoonas14 Youshouldmakeitaruletoleavethings youcanfindthemagain 1999 A whenB whereC thenD there15 We llhavetofinishthejob 1999 A longittakeshoweverB ittakeshoweverlongC longhoweverittakesD howeverlongittakes A B D 16 TheWTOcannotliveuptoitsname itdoesnotincludeacountrythatishometoonefifthofmankind 2000 A aslongasB whileC ifD eventhough17 Itisgenerallybelievedthatteachingis itisascience 2001 A anartmuchasB muchanartasC asanartmuchD asmuchanartas18 Acomputercanonlydo youhaveinstructedittodo A howB afterC whatD when 2001 C D C 状语从句是一个句子充当另一个句子的状语 表示主句动作发生的时间 条件 原因 方式 结果 目的等等 状语从句是历年高考题的重点 难点 命题一般是考查学生连词的掌握情况 根据两个句子的意思 判断两个句子之间的逻辑关系 选择合适的连词 常见的状语从句有九大类 要牢记不同的连词的具体意思 是解题的关键 一 时间状语从句常见连词 when while as before after since until assoonas immediately instantly the moment theminute thesecond nosooner than hardly when thefirsttime everytime eachtime nexttime 完成例句 1 我正在做饭 这时 门铃响了 Iwasdoingsomecookingwhenthedoorbellrang ThedoorbellrangwhenIwasdoingsomecooking 2 我正要下班 这时 天开始下大雨了 Iwasabouttoleaveworkwhenitbegantorainheavily 结论1 when通常意思为 当 时候 正在那时 完成例句 3 你在北京期间能否给我收集一些红树叶 WhileyouareinBeijing canyoucollectsomeredleavesforme 4 那个男孩在过马路时被迎面驶来的小轿车撞了 Whilewalkingacrossthestreet theboywasknockedoverbyarunningcar 结论2 while从句只能用延续性动词 意思为 在 期间 翻译句子 5 Astimegoesby wearegrowingwiserandwiser 随着时间的推移 我们变得越来越聪明了 6 Shedoesherhomeworkasshesings 她一边写作业 一边唱歌 结论3 as表示主句和从句的动作几乎同步进行 意思为 一边 一边 随着 完成例句 7 我还没到家就觉得饿了 在到家之前就觉得饿 IhadfelthungrybeforeIarrivedhome 8 我还没来得及向她道歉 她就离开了办公室 在我能够说抱歉之前 她就离开了办公室 ShelefttheofficebeforeIcouldsaysorrytoher 9 还要过很久我们才能毕业 Itwillbelongbeforewegraduate 结论4 before在 之前 还没来得及 才 完成例句 10 我来上海已经4年了 It s hasbeenfouryearssinceIcametoShanghai 结论5 since 自从 以来 是现在完成时的标志 注意 从句中延续性动词意义为否定 例 我当医生已经3年了 自从我成为医生以来 时间已经过去3年了 ItisthreeyearssinceIbecameadoctor 他不当医生已经3年了 Itisthreeyearssincehewasadoctor 我父亲不吸烟已有两年了 Itistwoyearssincemyfathersmoked 我父亲吸烟已有两年了 Itistwoyearssincemyfatherbegantosmoke 翻译句子 11 我一直睡到闹钟响为止 Isleptuntiltheclockalarmed 12 直到爸爸回来我才开始睡觉 Ididn tsleepuntilmyfathercameback 结论6 until 在肯定句中 表示动作持续 到 为止 在否定句中 常与not连用 表示动作 直到 才开始 翻译句子 13 她一到日本就给她妈妈打电话了 ShegavearingtohermotherimmediatelyshelandedinJapan 结论7 assoonas immediately themoment theminute thesecond引导时间状语从句 意为 一 就 完成例句 14 她一离开办公室电话就响了 Shehadnosoonerlefttheofficethanthetelephonerang 15 我们一吃过晚餐就开始修机器了 Wehadnosoonerhadsupperthanwebegantorepairthemachine Nosoonerhadwehadsupperthanwebegantorepairthemachine 倒装句形式 结论8 nosooner than hardly when 刚 就 注意 主句时态用haddone 从句用did 例句观察 EverytimeIseethefilm Ican thelprecallingmychildhoodinthecountryside 每当看那部电影 我就忍不住回想起在农村度过的童年 CallmeearliernexttimeyoucometoShanghai 你下次来上海早点儿给我打电话 结论9 特殊的状语从句连词有 everytime每当 每次 thefirsttime第一次 时候 nexttime下次 时 二 条件状语从句 完成例句 16 如果完成了作业 放学后他们就去打篮球 Theywillplaybasketballafterschooliftheyfinishtheirwork 17 除非被邀请 不然我是不会参加会议的 IwillnotattendthemeetingunlessIaminvited 18 一旦被发现 他就会被逮捕 Once hewas found hewouldbearrested 结论 1 常见连词 if unless once as so longas onconditionthat provided providing that suppose supposing that saythat let ssaythat 2 unless if not 意思是 如果不 没有 三 原因状语从句常见连词 because for since as nowthat when 例句观察 Whydidn tyoucomeyesterday 你昨天为什么没来 Becausemymumwasill 因为我妈妈生病了 It sbecausemymumwasillyesterdaythatIdidn tcome 我昨天是因为妈妈生病才没来的 结论1 because表示直接的 必然的原因 回答why问句 强调句中只用because表示原因 Itisbecause that 注意 表示补充说明的原因用for 而且不能放在句首 Thedayhasbroken forthebirdsaresingingnow 天亮了 因为鸟儿在唱歌 完成例句 19 既然你回答不了这个问题 那我就问问别人吧 Sinceyoucan tanswerthequestion I llasksomeoneelse 结论2 since表示众所周知的原因 既然 常放在句首 翻译句子 20 由于天黑了 我们还是下班吧 Asit sdark we dbettergooffwork 结论3 as表示客观原因 由于 常放在句首 翻译句子 21 既然你生病了 那就躺床上休息休息吧 N