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已知求x2+3x-1的值。
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ELastyearShanghai-bornCharlesK.KaoandtwoNorthAmericanscientistsgotthe2009NobelPrize诺贝尔奖inPhysicstogether.TheirworkmadetheInternetcomeintoanewage.Kao77wasborninShanghaiin1933.Heisfamousforfindingouthowtotransmit传输lightsignals信号overlongwaysthroughglassfibers玻璃纤维asthinasahumanhair.HisworkmakestheInternetinformationtransmitfasteraroundtheworld.Kaowasvicechancellor副校长oftheChineseUniversityofHongKongfrom1987to1996.Hedoesn’tworkandlivesinHongKongnow.TheChinesepeoplewerepleasedtolearnthegoodnews.ThepeopleofHongKongandIsendourcongratulationstoKaoonreceivingtheprize...Kaoisalsoatruegentleman.WearegreatlyproudtohavesuchanexcellentpersoninHongKong.ZengYinquanoncesaid.WillardBoyleaCanadianAmericanandGeorgeSmithoftheUnitedStatesgottheotherhalfoftheprize.Howmanyscientistsgotthe2009NobelPrizeinPhysicstogether
C OnChristmasEve—thenightbeforeChristmasDay—childrenalloverBritainputastockingattheendoftheirbedsbeforetheygotosleep.TheirparentsusuallytellthemthatFatherChristmaswillcomeduringthenight. FatherChristmasisverykind-hearted.Hegetstothetopofeachhouseandclimbsdownthechimneyintothefireplace.HefillseachofthestockingswithChristmaspresents. OfcourseFatherChristmasisn’treal.InJimandKate’shouse"FatherChristmas"isreallyMr.Green.Mr.Greendoesn’tclimbdownthechimney.Hewaitsuntilthechildrenareasleep.Thenhequietlygoesintotheirbedroomsandfillstheirstockingswithsmallpresents.WhentheywereveryyoungMr.Greensometimesworearedcoat.Buthedoesn’tdothatnow.Thechildrenarenolongeryoungandtheyknowwho"FatherChristmas"reallyis.Buttheystillputtheirstockingsattheendoftheirbeds. FatherChristmasoftenputspresents.
B Wastecanbeseeneverywhereintheschool.Somestudentsaskformorefoodthantheycaneatandothersoftenforgettoturnoffthelightswhentheyleavetheclassroom.Theysaytheycanaffordthesethings.ButIdon’tagreewiththem. Wastecanbringalotofproblems.AlthoughChinaisrichinsomeresources资源weareshortof缺乏othersforexamplefreshwater淡水.Itisreportedthatwewillhavenocoal煤oroiltousein100years.SoifwegoonwastingourresourceswhatcanweuseinthefutureandwherecanwemoveThinkaboutit.Ithinkweshouldsaynotothestudentswhowastethingseveryday.Everybodyshouldstopwastingassoonaspossible. Inoureverydaylifewecandomanythingstopreventwastefromhappeningforexampleturnoffthewatertaps水龙头whenwefinishwashingturnoffthelightswhenweleavetheclassroomtrynottoordermorefoodthanweneedandsoon.Littlebylittleeverythingwillhechanged.Wastecanbestoppedonedayifwedoourbest. Fromthepassageweknowthatsomestudentsoftenintheschool.
Onceamanandhiswifeworkedforanoldman.Therewasabigboxintheoldman’slivingroom.Theoldmanpointedtotheboxandsaid"There’sonlyonethingyou1do.Don’topenthebox."2sayingthishelefthishome.Thewomansaidtoherhusband"Theremustbe3expensiveinthebox.Let’sopenitshallwe"Herhusbandsaid4toher.Butthewomandidn’tgiveupher5.Onedayshedecidedtofindout6wasinit.Herhusbanddidn’tstopher.Sheopenedtheboxandlookedinside.Tohersurpriseshefoundnothinginthebox.Shetriedhardtocloseitbutshe7Thateveningtheoldmancamehomeandfoundtheboxwas8.Hewasvery9andaskedthewomanandherhusbandtoleavehishome."Buttherewasnothinginthebox"thewomansaid."Wehaven’ttakenanythingatall."Theoldman10them"TheboxisnotimportantbutIcannotbelieveyou.That’simportant! 第10空应选择
—peoplevisitthe2010ShanghaiWorldExpoeveryday—About300000.
—It'srainingoutside．—Yes.it'sreallywet.Ihateit．
ANapogaisa12-year-oldgirlinGhana加纳Africa.Itishardforherfamilytogetcleanwater.Everymorningsheleaveshomeathalfpastfivetogetcleanwaterforherfamilyinavillagefaraway.Ittakeshersixhourstogetenoughcleanwaterfordaily日常的cookinganddrinking.Shehasnotimetogotoschoolortoplaywithherfriends.MillionsofpeopleintheworldarelikeNapoga.Theycan’tgetenoughcleanwatertokeephealthy.EarthDayisApril22.Butonallotherdayswemustalsorememberit.Thewaterweuseisthemostimportantnaturalresource自然资源ontheearth.Watercovers70%oftheearth’ssurface表面.Butmostofthatisseawater.Wecan’tuseitforverymanythings.Freshwatercoversonly1%oftheearth’ssurface.Youprobablyfeelluckythatyourlifeisn’tashardasNapoga’s.Butthatdoesn’tmeanyoudon’thavetoworryaboutwater.Weallfaceseriouswaterproblems.Oneofthemiswaterpollution.Allkindsofthingsfromcarsfactoriesfarmsandhomesmakeourriverslakesandoceansdirty.Pollutedwaterisverybadforpeopletodrink.Anddirtywaterisbadforfishtoo.Now34%ofallkindsoffisharedyingout.HowdocarsandfactoriesmakeourwaterdirtyFirsttheypollutetheair.Thenwhenitrainstherainwatercomesdownandmakesourdrinkingwaterdirty.Dirtyraincalledacidrain酸雨isalsobadforplantsanimalsandbuildings.Scientistssaythatin30yearsmorethanhalfofthepeopleintheworldwon’thaveenoughcleanwater.Wehavetolearnhowtosavemorewaterforourselvesandourchildren.Hereissomeadviceforsavingwater:Turnoffthewaterwhileyoubrushyourteeth.Youcansaveasmuchas450liters升eachmonth.Leakytaps水的龙头wastealotofwater.Fixthemrightaway!Youcaneasilycutyour1O-minuteshowers沐浴inhalf—andyou’llbejustasclean.Whenyouwashdishesdon’tletthewaterrun.Onlywashclotheswhenyouhavealottowash.Ifyourwashingmachineisn’tfullyou’rewastingwater!Whichofthefollowingwasteswater
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从电视上看到美国正流行甲型H1N1流感A/H1N1flu部分学校停课你为正在美国上学的笔友Mike的健康与安全担心请你根据要点提示立即给他写一封e—mail询问他的情况并给他提出防护建议要点一询问1．他的健康状况2．他们学校有无甲型H1N1流感病例A/H1N1flucases3．他们是否还上学二建议1．尽量待在家里少去人多的地方2．勤洗手讲卫生3．多开窗保持空气新鲜4．多吃水果蔬菜注意1．词数在80词左右2．开头和结尾已给出不计人总词数DearMikeFromTVIknowmanyA/H1N1flucasesarereportedrecentlyintheUnitedStatesandmanyschoolsareclosedasaresult.I’msoworriedaboutyou.Sofarthediseaseisnotsodeadlyasitseemstobe.Dobeatease!Takecareandyou’llbeOK.YourstrulyLiHua
Onceamanandhiswifeworkedforanoldman.Therewasabigboxintheoldman’slivingroom.Theoldmanpointedtotheboxandsaid"There’sonlyonethingyou1do.Don’topenthebox."2sayingthishelefthishome.Thewomansaidtoherhusband"Theremustbe3expensiveinthebox.Let’sopenitshallwe"Herhusbandsaid4toher.Butthewomandidn’tgiveupher5.Onedayshedecidedtofindout6wasinit.Herhusbanddidn’tstopher.Sheopenedtheboxandlookedinside.Tohersurpriseshefoundnothinginthebox.Shetriedhardtocloseitbutshe7Thateveningtheoldmancamehomeandfoundtheboxwas8.Hewasvery9andaskedthewomanandherhusbandtoleavehishome."Buttherewasnothinginthebox"thewomansaid."Wehaven’ttakenanythingatall."Theoldman10them"TheboxisnotimportantbutIcannotbelieveyou.That’simportant! 第8空应选择
BWastecanbeseeneverywhereintheschool.Somestudentsaskformorefoodthantheycaneatandothersoftenforgettoturnoffthelightswhentheyleavetheclassroom.Theysaytheycanaffordthesethings.ButIdon’tagreewiththem.Wastecanbringalotofproblems.AlthoughChinaisrichinsomeresources资源weareshortof缺乏othersforexamplefreshwater淡水.Itisreportedthatwewillhavenocoal煤oroiltousein100years.SoifwegoonwastingourresourceswhatcanweuseinthefutureandwherecanwemoveThinkaboutit.Ithinkweshouldsaynotothestudentswhowastethingseveryday.Everybodyshouldstopwastingassoonaspossible.Inoureverydaylifewecandomanythingstopreventwastefromhappeningforexampleturnoffthewatertaps水龙头whenwefinishwashingturnoffthelightswhenweleavetheclassroomtrynottoordermorefoodthanweneedandsoon.Littlebylittleeverythingwillhechanged.Wastecanbestoppedonedayifwedoourbest.Whichisthebesttitleofthispassage
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Onceamanandhiswifeworkedforanoldman.Therewasabigboxintheoldman’slivingroom.Theoldmanpointedtotheboxandsaid"There’sonlyonethingyou1do.Don’topenthebox."2sayingthishelefthishome.Thewomansaidtoherhusband"Theremustbe3expensiveinthebox.Let’sopenitshallwe"Herhusbandsaid4toher.Butthewomandidn’tgiveupher5.Onedayshedecidedtofindout6wasinit.Herhusbanddidn’tstopher.Sheopenedtheboxandlookedinside.Tohersurpriseshefoundnothinginthebox.Shetriedhardtocloseitbutshe7Thateveningtheoldmancamehomeandfoundtheboxwas8.Hewasvery9andaskedthewomanandherhusbandtoleavehishome."Buttherewasnothinginthebox"thewomansaid."Wehaven’ttakenanythingatall."Theoldman10them"TheboxisnotimportantbutIcannotbelieveyou.That’simportant! 第6空应选择
D PeopleoftensaythattheEnglishman’shomeishiscastle.Theymeanthatthehomeisveryimportantandpersonaltohim.MostpeopleinBritainliveinhousesratherthanflatsandmanypeopleowntheirhomes.Thismeansthattheycanmakethemindividual个体的;theycanpaintthemandchangetheminanywaytheylike.Mosthouseshaveagardenevenifitisaverysmalloneandthegardenisusuallyloved.Thehouseandthegardenaretheprivate私人的spaceoftheindividual. Peopleusuallyliketomarktheirspace.AreyousittingnowinyourhomeoronatrainHaveyoumarkedthespacearoundyourselfasyoursIfyouareonthetrainyoumayputyourcoatorsmallbagontheseatbesideyou.Ifyoushareaflatyoumayhaveonecornerorchairwhichisyourown. OnceIwastravellingonatraintoLondon.Iwasinasectionforfourpeopleandtherewasatablebetweenus.Themanontheoppositesidetomehadhisbriefcaseonthetable.Therewasnospaceonmysideofthetableatall.Iwasangry.Maybehethoughtthatheownedthewholetable.IhadreadabookaboutnonverbalcommunicationsoItookvariouspapersoutofmybagandputthemonhisbriefcase!WhenIdidthishestiffenedandhiseyesnearlypopped瞪出outofhishead.Ihadinvaded侵犯hisspace!AfewminuteslaterItookmypapersoffhiscaseinordertoreadthem.Heimmediatelymovedhiscasetohissideofthetable.Ofcourseitispossiblethathejustwantedtobehelpfultome! Ifyouarevisitinganothercountryyoumayfeelthatyoudon’thaveanyprivatespace.Hotelroomslookmuchthesameineverycountryintheworld.Alldaylongyousharepublicspaceswithotherpeople.Youseethelocalpeopleintheirprivatespacesandyoufeellonelyand"outside".Localpeoplecancreatetheirprivatespacesbytalkingaboutthingsyoudon’tknowabout.Andyouevenfeelthattheylikeyoutobeoutsidethemsothattheywillenjoybeinginsideevenmore!Thisisoneofthedifficultiesofbeingatraveller!Butifyouunderstanditthenithelpsyou.Haven’tyouenjoyedbeingpartofagroupand"owning"abitofspace ThewriterwasangryashewastravelingonatraintoLondonbecause.
D PeopleoftensaythattheEnglishman’shomeishiscastle.Theymeanthatthehomeisveryimportantandpersonaltohim.MostpeopleinBritainliveinhousesratherthanflatsandmanypeopleowntheirhomes.Thismeansthattheycanmakethemindividual个体的;theycanpaintthemandchangetheminanywaytheylike.Mosthouseshaveagardenevenifitisaverysmalloneandthegardenisusuallyloved.Thehouseandthegardenaretheprivate私人的spaceoftheindividual. Peopleusuallyliketomarktheirspace.AreyousittingnowinyourhomeoronatrainHaveyoumarkedthespacearoundyourselfasyoursIfyouareonthetrainyoumayputyourcoatorsmallbagontheseatbesideyou.Ifyoushareaflatyoumayhaveonecornerorchairwhichisyourown. OnceIwastravellingonatraintoLondon.Iwasinasectionforfourpeopleandtherewasatablebetweenus.Themanontheoppositesidetomehadhisbriefcaseonthetable.Therewasnospaceonmysideofthetableatall.Iwasangry.Maybehethoughtthatheownedthewholetable.IhadreadabookaboutnonverbalcommunicationsoItookvariouspapersoutofmybagandputthemonhisbriefcase!WhenIdidthishestiffenedandhiseyesnearlypopped瞪出outofhishead.Ihadinvaded侵犯hisspace!AfewminuteslaterItookmypapersoffhiscaseinordertoreadthem.Heimmediatelymovedhiscasetohissideofthetable.Ofcourseitispossiblethathejustwantedtobehelpfultome! Ifyouarevisitinganothercountryyoumayfeelthatyoudon’thaveanyprivatespace.Hotelroomslookmuchthesameineverycountryintheworld.Alldaylongyousharepublicspaceswithotherpeople.Youseethelocalpeopleintheirprivatespacesandyoufeellonelyand"outside".Localpeoplecancreatetheirprivatespacesbytalkingaboutthingsyoudon’tknowabout.Andyouevenfeelthattheylikeyoutobeoutsidethemsothattheywillenjoybeinginsideevenmore!Thisisoneofthedifficultiesofbeingatraveller!Butifyouunderstanditthenithelpsyou.Haven’tyouenjoyedbeingpartofagroupand"owning"abitofspace InParagraph4thepronounthemrefersto所指.
C OnChristmasEve—thenightbeforeChristmasDay—childrenalloverBritainputastockingattheendoftheirbedsbeforetheygotosleep.TheirparentsusuallytellthemthatFatherChristmaswillcomeduringthenight. FatherChristmasisverykind-hearted.Hegetstothetopofeachhouseandclimbsdownthechimneyintothefireplace.HefillseachofthestockingswithChristmaspresents. OfcourseFatherChristmasisn’treal.InJimandKate’shouse"FatherChristmas"isreallyMr.Green.Mr.Greendoesn’tclimbdownthechimney.Hewaitsuntilthechildrenareasleep.Thenhequietlygoesintotheirbedroomsandfillstheirstockingswithsmallpresents.WhentheywereveryyoungMr.Greensometimesworearedcoat.Buthedoesn’tdothatnow.Thechildrenarenolongeryoungandtheyknowwho"FatherChristmas"reallyis.Buttheystillputtheirstockingsattheendoftheirbeds. Whenthechildrenareolderthey.
D PeopleoftensaythattheEnglishman’shomeishiscastle.Theymeanthatthehomeisveryimportantandpersonaltohim.MostpeopleinBritainliveinhousesratherthanflatsandmanypeopleowntheirhomes.Thismeansthattheycanmakethemindividual个体的;theycanpaintthemandchangetheminanywaytheylike.Mosthouseshaveagardenevenifitisaverysmalloneandthegardenisusuallyloved.Thehouseandthegardenaretheprivate私人的spaceoftheindividual. Peopleusuallyliketomarktheirspace.AreyousittingnowinyourhomeoronatrainHaveyoumarkedthespacearoundyourselfasyoursIfyouareonthetrainyoumayputyourcoatorsmallbagontheseatbesideyou.Ifyoushareaflatyoumayhaveonecornerorchairwhichisyourown. OnceIwastravellingonatraintoLondon.Iwasinasectionforfourpeopleandtherewasatablebetweenus.Themanontheoppositesidetomehadhisbriefcaseonthetable.Therewasnospaceonmysideofthetableatall.Iwasangry.Maybehethoughtthatheownedthewholetable.IhadreadabookaboutnonverbalcommunicationsoItookvariouspapersoutofmybagandputthemonhisbriefcase!WhenIdidthishestiffenedandhiseyesnearlypopped瞪出outofhishead.Ihadinvaded侵犯hisspace!AfewminuteslaterItookmypapersoffhiscaseinordertoreadthem.Heimmediatelymovedhiscasetohissideofthetable.Ofcourseitispossiblethathejustwantedtobehelpfultome! Ifyouarevisitinganothercountryyoumayfeelthatyoudon’thaveanyprivatespace.Hotelroomslookmuchthesameineverycountryintheworld.Alldaylongyousharepublicspaceswithotherpeople.Youseethelocalpeopleintheirprivatespacesandyoufeellonelyand"outside".Localpeoplecancreatetheirprivatespacesbytalkingaboutthingsyoudon’tknowabout.Andyouevenfeelthattheylikeyoutobeoutsidethemsothattheywillenjoybeinginsideevenmore!Thisisoneofthedifficultiesofbeingatraveller!Butifyouunderstanditthenithelpsyou.Haven’tyouenjoyedbeingpartofagroupand"owning"abitofspace Themainpurposeofthepassageistotellreadersto.
NeitheryouorheHawaiibefore.
Onceamanandhiswifeworkedforanoldman.Therewasabigboxintheoldman’slivingroom.Theoldmanpointedtotheboxandsaid"There’sonlyonethingyou1do.Don’topenthebox."2sayingthishelefthishome.Thewomansaidtoherhusband"Theremustbe3expensiveinthebox.Let’sopenitshallwe"Herhusbandsaid4toher.Butthewomandidn’tgiveupher5.Onedayshedecidedtofindout6wasinit.Herhusbanddidn’tstopher.Sheopenedtheboxandlookedinside.Tohersurpriseshefoundnothinginthebox.Shetriedhardtocloseitbutshe7Thateveningtheoldmancamehomeandfoundtheboxwas8.Hewasvery9andaskedthewomanandherhusbandtoleavehishome."Buttherewasnothinginthebox"thewomansaid."Wehaven’ttakenanythingatall."Theoldman10them"TheboxisnotimportantbutIcannotbelieveyou.That’simportant! 第4空应选择
millionlosegoldsinggofewrealfriendwecare Familiesinbigcitieshavechildrenthantheydidthirtyyearsago．
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Herteacherthinksofothers.
A Napogaisa12-year-oldgirlinGhana加纳Africa.Itishardforherfamilytogetcleanwater.Everymorningsheleaveshomeathalfpastfivetogetcleanwaterforherfamilyinavillagefaraway.Ittakeshersixhourstogetenoughcleanwaterfordaily日常的cookinganddrinking.Shehasnotimetogotoschoolortoplaywithherfriends.MillionsofpeopleintheworldarelikeNapoga.Theycan’tgetenoughcleanwatertokeephealthy. EarthDayisApril22.Butonallotherdayswemustalsorememberit.Thewaterweuseisthemostimportantnaturalresource自然资源ontheearth. Watercovers70%oftheearth’ssurface表面.Butmostofthatisseawater.Wecan’tuseitforverymanythings.Freshwatercoversonly1%oftheearth’ssurface. Youprobablyfeelluckythatyourlifeisn’tashardasNapoga’s.Butthatdoesn’tmeanyoudon’thavetoworryaboutwater.Weallfaceseriouswaterproblems.Oneofthemiswaterpollution.Allkindsofthingsfromcarsfactoriesfarmsandhomesmakeourriverslakesandoceansdirty.Pollutedwaterisverybadforpeopletodrink.Anddirtywaterisbadforfishtoo.Now34%ofallkindsoffisharedyingout. HowdocarsandfactoriesmakeourwaterdirtyFirsttheypollutetheair.Thenwhenitrainstherainwatercomesdownandmakesourdrinkingwaterdirty.Dirtyraincalledacidrain酸雨isalsobadforplantsanimalsandbuildings. Scientistssaythatin30yearsmorethanhalfofthepeopleintheworldwon’thaveenoughcleanwater.Wehavetolearnhowtosavemorewaterforourselvesandourchildren.Hereissomeadviceforsavingwater: Turnoffthewaterwhileyoubrushyourteeth.Youcansaveasmuchas450liters升eachmonth. Leakytaps水的龙头wastealotofwater.Fixthemrightaway! Youcaneasilycutyour1O-minuteshowers沐浴inhalf—andyou’llbejustasclean. Whenyouwashdishesdon’tletthewaterrun. Onlywashclotheswhenyouhavealottowash.Ifyourwashingmachineisn’tfullyou’rewastingwater! Ontheearth.
美育
ELastyearShanghai-bornCharlesK.KaoandtwoNorthAmericanscientistsgotthe2009NobelPrize诺贝尔奖inPhysicstogether.TheirworkmadetheInternetcomeintoanewage.Kao77wasborninShanghaiin1933.Heisfamousforfindingouthowtotransmit传输lightsignals信号overlongwaysthroughglassfibers玻璃纤维asthinasahumanhair.HisworkmakestheInternetinformationtransmitfasteraroundtheworld.Kaowasvicechancellor副校长oftheChineseUniversityofHongKongfrom1987to1996.Hedoesn’tworkandlivesinHongKongnow.TheChinesepeoplewerepleasedtolearnthegoodnews.ThepeopleofHongKongandIsendourcongratulationstoKaoonreceivingtheprize...Kaoisalsoatruegentleman.WearegreatlyproudtohavesuchanexcellentpersoninHongKong.ZengYinquanoncesaid.WillardBoyleaCanadianAmericanandGeorgeSmithoftheUnitedStatesgottheotherhalfoftheprize.WhichofthefollowingisNottrue
先于所要学习的材料呈现的一种引导性材料它对新学习材料的简化与概括在新学习材料与学习者原有认知观念之间起认知桥梁的作用这种学习内容的教学策略叫做
BWastecanbeseeneverywhereintheschool.Somestudentsaskformorefoodthantheycaneatandothersoftenforgettoturnoffthelightswhentheyleavetheclassroom.Theysaytheycanaffordthesethings.ButIdon’tagreewiththem.Wastecanbringalotofproblems.AlthoughChinaisrichinsomeresources资源weareshortof缺乏othersforexamplefreshwater淡水.Itisreportedthatwewillhavenocoal煤oroiltousein100years.SoifwegoonwastingourresourceswhatcanweuseinthefutureandwherecanwemoveThinkaboutit.Ithinkweshouldsaynotothestudentswhowastethingseveryday.Everybodyshouldstopwastingassoonaspossible.Inoureverydaylifewecandomanythingstopreventwastefromhappeningforexampleturnoffthewatertaps水龙头whenwefinishwashingturnoffthelightswhenweleavetheclassroomtrynottoordermorefoodthanweneedandsoon.Littlebylittleeverythingwillhechanged.Wastecanbestoppedonedayifwedoourbest.Whatmayhappenin100years
Ihaveneverseenfilmbefore．
Onceamanandhiswifeworkedforanoldman.Therewasabigboxintheoldman’slivingroom.Theoldmanpointedtotheboxandsaid"There’sonlyonethingyou1do.Don’topenthebox."2sayingthishelefthishome.Thewomansaidtoherhusband"Theremustbe3expensiveinthebox.Let’sopenitshallwe"Herhusbandsaid4toher.Butthewomandidn’tgiveupher5.Onedayshedecidedtofindout6wasinit.Herhusbanddidn’tstopher.Sheopenedtheboxandlookedinside.Tohersurpriseshefoundnothinginthebox.Shetriedhardtocloseitbutshe7Thateveningtheoldmancamehomeandfoundtheboxwas8.Hewasvery9andaskedthewomanandherhusbandtoleavehishome."Buttherewasnothinginthebox"thewomansaid."Wehaven’ttakenanythingatall."Theoldman10them"TheboxisnotimportantbutIcannotbelieveyou.That’simportant! 第2空应选择
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