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两直线ι1：y=2x-1，ι2=y=x+1的交点坐标为( )。
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直线2x＋3y＋8＝0和直线x－y－1＝0的交点坐标是
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直线L.与直线y＝2x＋1的交点的横坐标为2与直线y＝－x＋2的交点的纵坐标为1求直线L.对应的函数
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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
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Weshouldhelpherwhensheis.
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Hehardlyhadanythingtoeathe
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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.
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./ WhowasoncegivenasaChristmasgifttoapoorfamily
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.
DearAmy IhaveaproblemandI’mwritingaskyou1. foranadvice.Thisisasecretsoldon’ttellanybodyelse.2. MycousinandIusedtogettingalongverywelland3. weweregoodfriend.Wewereplanningtospend4. partofthewinterholidaytogetherbutnow5. Idon’tthinkIwanttoinviteherhome.6. RecentlyIhasdiscoveredthathe’sstartedtotell7. lies.WhenItoldhimthiswaswrongtotelllies8. buthejustlaughedatme.TheproblemisshouldI9. tellhisparentsorhisteacherorshouldIkeepquietly.10. 第7空应
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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