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某水果批发商场经销一种高档水果，如果每千克盈利10元，每天可售出500千克，经市场调查发现，在进货价不变的情况下，若每千克涨价1元，日销售量将减少20千克。现该商场要保证每天盈利6000元，同时又要顾...
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某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克.经市场调查发现在进货价不变的
水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克.经市场调查发现在进货价不变的情
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克．经市场调查发现在进货价不变的
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克．经市场调查发现在进货价不变的
某水果批发商场销售一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
某水果批发商场经销一种水果如果每千克盈利5元每天可售出200千克经市场调查发现在进价不变的情况下若每
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克.经市场调查发现在进货价不变的
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
.列一元二次方程解应用题某水果批发商场经销一种高档水果如果每千克盈利l0元每天可售出500千克经过市
某水果批发商场有一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情况
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某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克．经市场调查发现在进货价不变
某水果批发商场经销一种水果如果每千克盈利5元每天可售出200千克经市场调查发现在进价不变的情况下若每
某水果批发商场经销一种水果如果每千克盈利5元每天可售出200千克经市场调查发现在进价不变的情况下若每
某水果批发商场经销一种高档水果如果每千克盈利10元每天可售出500千克经市场调查发现在进货价不变的情
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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! EverymorningNapogawenttogetcleanwater.
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.Whichisnotmentionedinthispassage
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 WhichofthefollowingisTRUEaccordingtothepassage
It'sgoodfoodthatwealllikeitverymuch.
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 youfeellonelyandoutsideinparagraph4meansthat.
—HiJanewouldyouliketogohikingwithmeonSunday—.Ihavetoomuchhomework．
LeiFengistheofallthepeopleinChin
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7空应选择
—Whenshallwemeetagainnextweek—dayispossible.It'snoproblemwithme.
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5空应选择
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. Whenthechildrenwereveryyoung.
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ Washerhousewashedawayinthebigflood
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1空应选择
—SusanIwon'tbebackfordinnerthisevening.—Don'tworryMomIcantakecareof.
Weshouldhelpherwhensheis.
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3空应选择
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9空应选择
Hehardlyhadanythingtoeathe
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! Acidrain.
学习的主体因素指
1868年俄罗斯心理学家乌申斯基出版了对当时的心理学发展成果进行结他因此被称为俄罗斯教育心理学的奠基人
E LastyearShanghai-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. TheChinesepeoplefeelatthenewsthatKaogottheNobelPrize.
按照学习迁移内容的抽象与概括化水平进行划分学习迁移可以分为
E LastyearShanghai-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. ZengYinquanthinksKaois.
Annalivedonthesideofavalley山谷.OnewintertherewasaverybigfloodandalotofhousesdownbelowAnna’shousewerewashedaway.Anna’shousewashighenoughtoescapethefloodsowhenthewaterhaddisappearedandtheotherhouseswerestandingtherewithnoroofsandwallsandallcoveredwithmudherhousewasstillquiteallright.ThatyearAnna’swasverylucky. HerhousewasquitesmallandtherewereonlytwosmallbedroomsherhusbandwasdeadwhenthechildrenwereveryyoungandshehadfourchildrenbutAnnatookinoneofthefamiliesthathadlosteverythinginthefloodandshesharedherhomewiththemuntilitwaspossibleforthemtorebuildtheirhouse. Anna’sfriendswereverypuzzled困惑whentheysawAnnadothis.TheycouldnotunderstandwhyAnnawantedtogiveherselfsomuchmoreworkandtroublewhenshehadalreadyquitealotofchildrentosupport.Lifewouldbeevenharderwhenanotherfamilyjoinedthem. "Well"Annaexplainedtoherfriends"attheendoftheFirstWorldWarawomaninthetownwhereIthenlivedinGermanyfoundherselfverypoorbecauseherhusbandhadbeenkilledinthewarandshehadalotofchildrenasIhavenow." "ThedaybeforeChristmasthiswomansaidtoherchildren’Wewon’thavemuchforChristmasthisyearsoIamgoingtogetonlyonegiftforallofusandIamsurewewillallbegladtohaveit.NowI’llgoandgetit.’Shecamebackwithalittlegirlwhowasevenpoorerthantheyandwhohadnoparents.’Hereisourgift’shesaidtoherchildren." "Thechildrenwereveryexcitedandhappytogetsuchagift.TheywelcomedthelittlegirlandshegrewupastheirsisterIwasjustthatChristmasgift./ WhywereAnna’sfriendspuzzledwhenshesharedherhousewithafamilythathadlosteverything
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. ChristmasEveis.
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!What’sthemainideaofthepassage
E LastyearShanghai-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. CharlesK.Kaowasbornin.
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.Whichofthefollowingisright
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. FatherChristmascomesintothehousethroughthe.
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