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—The research on the new bird flu virus vaccine is challenging and demanding. Who do you think can d...
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Lookatthedog.Itwasrunningthelittlebird.Thebirdloo
——Theresearchonthenewbirdfluvirusvaccineischalleng
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Athirstbeewenttoarivertodrinkandwascarriedawaybyt
ThereisabirdinthetreE.Itissinging.选出与划线部分意思相同或相近的选
There is a bird sing in the treE.
There is a bird to sing in the treE.
There is a bird singing in the treE.
There is a bird is singing in the treE.
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did the bird fly
flew the bird
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一 InOctober1961atCrowleyFieldinCincinnatiOhioanolddeafgentlemannamedWilliamE.HoystooduptothrowthefirsthalloftheWorldSeries.MostpeopleatCrowleyFieldonthatdayprobablydidnotrememberHoybecausehehadretiredfromprofessionalbaseball58yearsearlierin1903.Howeverhehadbeenanoutstandingplayerandthedeafpeoplestilltalkabouthimandhisyearsinbaseball. WilliamE.HoywasborninHouckstownOhioonMay231862.Hebecamedeafwhenhewastwoyearsold.HeattendedtheColumbusOhioSchoolforthedealAftergraduationhestartedplayingbaseballwhileworkingasashoemaker. Hoybeganplayingprofessionalbaseballin1886forOshkoshWisconsinoftheNorthwesternLeague.In1888hestartedasanoutfielderwiththeoldWashingtonSenators.Hissmallfigureandspeedmadehimanoutstandingbaserunner.Hewasverygoodatstealingbasesduringhiscareer.Inthe1888majorleagueseasonhestole82bases.HewasalsotheSenators’leadinghitterin1888.Hoywascleverandhethrewright-handedandbattedleft-handed.OnJune191889hethrewoutthreebattersattheplatefromhisoutfieldposition. ThearmsignalsusedbyjudgestodaytoshowballsandstrikesbeganbecauseofHoy.Thejudgeliftedhisrightarmtoshowthatthepitchwasastrikeandhisleftarmtosignalthatitwasaball. FormanyyearspeopletalkedaboutHoy’slastballgamein1903.HewasplayingforLosAngelesofthePacificCoastWinterLeague.ItwasamemorablegamebecauseHoyhitawonderfulballwhichwonthegame.Itwasaveryfoggydayandthereforeveryhardtoseetheball.IntheninthinningwithtwomenoutHoymanagedtocatchaflyballtomakethethirdoutinspiteofthefog.LosAngelesdefeatedtheiroppositionandwonthegame. AfterheretiredHoystayedbusy.HeranadairyfarmnearCincinnatifor20years.Healsobecameapublicspeakerandtraveledgivingspeeches.Untilafewyearsbeforehisdeathhetook4—10milewalksseveralmorningsaweek.OnDecember151961WilliamHoydiedattheageof99. WecaninferfromthelastparagraphthatHoyinhislateyears.
Ihavebeenkeepingtheportrait．IcanseeiteverydayasitalwaysremindsmeofmychildhoodinParis．
Allthisthatknowledgecomesfrompractice.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第6空应选择
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第10空应选择
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第16空应选择
二 Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater. Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed. AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthere~isbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey. Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown. Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody. Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater. Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb. Thepurposeofthepassageisto.
Withalotofdifficultproblemsthemanagerfeltworriedallthetime.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第12空应选择
三 Believeitornotopticalillusioncancuthighwaycrashes. Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Butstripescalledchevronspaintedontheroadsmakedriversthinkthattheyaredrivingfasterthan:theyreallyareandthusdriversslowdown. NowtheAmericanAutomobileAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyearthefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes. Excessivetoogreatspeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidentsaccordingtothefoundation.Tohelpreducethoseaccidentsthefoundationwillconductitstestsinareaswherespeed-relatedhazardsdangerarethegreatestcurvesexitslopestrafficcirclesandbridges. Somestudiessuggestthatstraighthorizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.Howevertrafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbars. Chevronsscientistssaynotonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealaneappeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents. TheAmericanAutomobileAssociationFoundationforTrafficSafetyplansto.
终身教育思想形成于20世纪60年代的欧洲由首先提出
注意的种类不随意注意无意注意随意注意有意注意随意后注意有意后注意
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第8空应选择
Europeanfootballisplayedin80countriesitthemostpopularsportintheworld.
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第18空应选择
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第20空应选择
我国第一个正式实施的学制是
教育学作为一门独立的学科萌芽于赫尔巴特的普通教育学
一 InOctober1961atCrowleyFieldinCincinnatiOhioanolddeafgentlemannamedWilliamE.HoystooduptothrowthefirsthalloftheWorldSeries.MostpeopleatCrowleyFieldonthatdayprobablydidnotrememberHoybecausehehadretiredfromprofessionalbaseball58yearsearlierin1903.Howeverhehadbeenanoutstandingplayerandthedeafpeoplestilltalkabouthimandhisyearsinbaseball. WilliamE.HoywasborninHouckstownOhioonMay231862.Hebecamedeafwhenhewastwoyearsold.HeattendedtheColumbusOhioSchoolforthedealAftergraduationhestartedplayingbaseballwhileworkingasashoemaker. Hoybeganplayingprofessionalbaseballin1886forOshkoshWisconsinoftheNorthwesternLeague.In1888hestartedasanoutfielderwiththeoldWashingtonSenators.Hissmallfigureandspeedmadehimanoutstandingbaserunner.Hewasverygoodatstealingbasesduringhiscareer.Inthe1888majorleagueseasonhestole82bases.HewasalsotheSenators’leadinghitterin1888.Hoywascleverandhethrewright-handedandbattedleft-handed.OnJune191889hethrewoutthreebattersattheplatefromhisoutfieldposition. ThearmsignalsusedbyjudgestodaytoshowballsandstrikesbeganbecauseofHoy.Thejudgeliftedhisrightarmtoshowthatthepitchwasastrikeandhisleftarmtosignalthatitwasaball. FormanyyearspeopletalkedaboutHoy’slastballgamein1903.HewasplayingforLosAngelesofthePacificCoastWinterLeague.ItwasamemorablegamebecauseHoyhitawonderfulballwhichwonthegame.Itwasaveryfoggydayandthereforeveryhardtoseetheball.IntheninthinningwithtwomenoutHoymanagedtocatchaflyballtomakethethirdoutinspiteofthefog.LosAngelesdefeatedtheiroppositionandwonthegame. AfterheretiredHoystayedbusy.HeranadairyfarmnearCincinnatifor20years.Healsobecameapublicspeakerandtraveledgivingspeeches.Untilafewyearsbeforehisdeathhetook4—10milewalksseveralmorningsaweek.OnDecember151961WilliamHoydiedattheageof99. Whatcanbeinferredfromthispassage
教育学
在我国最早把教和育连在一起使用的人是
—HowdoyoufindthetalkgivenbyMr.Smith—.
三 Believeitornotopticalillusioncancuthighwaycrashes. Japanisacaseinpoint.Ithasreducedautomobilecrashesonsomeroadsbynearly75percentusingasimpleopticalillusion.Butstripescalledchevronspaintedontheroadsmakedriversthinkthattheyaredrivingfasterthan:theyreallyareandthusdriversslowdown. NowtheAmericanAutomobileAssociationFoundationforTrafficSafetyinWashingtonD.C.isplanningtorepeatJapan’ssuccess.Startingnextyearthefoundationwillpaintchevronsandotherpatternsofstripesonselectedroadsaroundthecountrytotesthowwellthepatternsreducehighwaycrashes. Excessivetoogreatspeedplaysamajorroleinasmuchasonefifthofallfataltrafficaccidentsaccordingtothefoundation.Tohelpreducethoseaccidentsthefoundationwillconductitstestsinareaswherespeed-relatedhazardsdangerarethegreatestcurvesexitslopestrafficcirclesandbridges. Somestudiessuggestthatstraighthorizontalbarspaintedacrossroadscaninitiallycuttheaveragespeedofdriversinhalf.Howevertrafficoftenreturnstofullspeedwithinmonthsasdriversbecomeusedtoseeingthepaintedbars. Chevronsscientistssaynotonlygivedriverstheimpressionthattheyaredrivingfasterthantheyreallyarebutalsomakealaneappeartobenarrower.Theresultisalongerlastingreductioninhighwayspeedandthenumberoftrafficaccidents. Onroadspaintedwithchevronsdriverstendtofeelthat.
—isMr.Blacklike—Heisaverynicepersonandofthetwoengineers.
Iyouahappybirthday．
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第2空应选择
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第14空应选择
Itisclearthatsomechemicalscandamagethehealthofanimalsandhumans.1thisisnottheonlyproblemthat2becausedbythecarelessuseofchemicals.Chemicalscanalso3theecologicalbalanceoftheenvironment.Iftheecologicalbalanceisdisturbedtheresultscanbe4serious.The5ofDDTillustratestheproblem.DDTachemicalwhichkillsinsectsatfirstseemedtobeaperfectanswer6manyproblems.Itwouldcontrolinsectsthatcauseddangerousdiseases7insectsthatcausedbillionsofdollarsofdamagetocropseveryyear.Governmentspermittedandeven8theuseofDDT.Farmersinmanycountries9tosprayitontheircrops.The10resultsweregood.Damagetocrops11downandprofitswentup.Howeverthechemicalhadeffectswhichthescientistsdidn’tseein12.Firstitalsokilledinsectswhichwerethe13enemiesoftheharmfulinsectsandwhichwerethereforebeneficialtofarmers.SecondandperhapsworseDDTdidnotkill14harmfulinsect.Afewinsectshadnaturalresistancetothechemical.They15andreproducedinlargenumbers.Inafewyearstherewerelargenumbersofinsectswhichwerenot16byDDTandtherewere17insectswhichCouldactasnatural18onthesenew"super-insects".FinallyitbecameclearthatDDTwasnotsolvingtheinsectproblem.Infactitwasmakingtheproblemworse.It19becamenecessarytofindasecond20fortheeffectsofthefirst. 第4空应选择
Doyouknowthesingeranddancerwhoatthegate
二 Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater. Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed. AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthere~isbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey. Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown. Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody. Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater. Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb. Thewriterdescribesthespecialspiderasspecialbecause.
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