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已知圆O:x2+y2=5和点A(1,2),则过A且与圆O相切的直线与两坐标轴围成的三角形的面积等于().
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已知圆O的方程为x2+y2=4. 1求过点P12且与圆O相切的直线L的方程 2直线L过点P12
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已知圆O.x2+y2=4则过点P24与圆O.相切的切线方程为________________.
已知圆C.与x轴相切于点T10与y轴正半轴交于两点
,B(B在A.的上方)且AB=2,过点A.任作一条直线与圆O:x
2
+y
2
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已知圆O.的方程为x2+y2=41求过点P12且与圆O.相切的直线L.的方程2直线L.过点P12且与
已知圆O.x2+y2=4和点M1a.1若过点M.有且只有一条直线与圆O.相切求实数a的值并求出切线方
已知点Px0y0圆O.x2+y2=r2r>0直线lx0x+y0y=r2有以下几个结论①若点P.在圆O
1
2
3
4
已知圆Ox2+y2=4和点M1a.1若过点M有且只有一条直线与圆O相切求正数a的值并求出切线方程2若
已知圆O.的方程是x2+y2=9.求过点A.12所作圆的弦的中点P.的轨迹方程.
已知圆Ox2+y2=5和点A12则过A且与圆O相切的直线与两坐标轴围成的三角形的面积等于.
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1
2
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4
已知圆O.的方程为x2+y2=41求过点P.12且与圆O.相切的直线L.的方程2直线L.过点P.12
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已知圆C.的圆心在直线x﹣2y=0上.1若圆C.与y轴的正半轴相切且该圆截x轴所得弦的长为2求圆C.
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10
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WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 6.
Georgecouldn'trememberwhenhefirstmetMr.AndersonbuthewassureitwasSundaybecauseeverybodywasatchurch.
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 20.
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 18.
NeitherhenorIfromCanada.WearefromAustralia.
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 4.
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 16.
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 10.
WantaglanceofthefutureofhealthcareTakealookatthewaythevariousnetworksofpeopleaboutpatientcarearebeingconnectedtooneanotherandhowthisnewconnectivityisbeingexploitedtodelivermedicinetothepatient—nomatterwhereheorshemaybe.Onlinedoctorsofferingadvicebasedonnormalsymptomsarethemostobviousexample.Increasinglyhoweverremotediagnosiswillbebasedonrealphysiologicaldatafromtheactualpatient.AgroupfromtheUniversityofKentuckyhasshownthatbyusingpersonaldataassistanceplusamobilephoneitisperfectlypracticaltosendapatient’simportantsignsoverthetelephone.Withthiskindofequipmentthecryaskingwhethertherewasadoctorinthehousecouldwellbeathingofthepast.Othermedicaltechnologygroupsareworkingonapplyingtelemedicinetoruralcountrysidecare.Andatleastoneteamwantstousetelemedicineasatoolfordisasterneed—especiallyafterearthquakes.Onthewholethetrendistowardsprovidingglobalaccesstomedicaldataandexperts’opinions.Butthereisoneproblem.Bandwidthisthelimitingfactorforsendingcomplexmedicalpicturesaroundtheworld—CTphotosbeingoneofthebiggestbandwidthusers.Communicationsatellitesmaybeabletodealwiththeshort-termneedsduringdisasterssuchasearthquakesorwars.Butmedicineislookingtowardsboththesecond-generationInternetandthird-generationmobilephonesforthefutureofremotemedicalservice.Doctorshavemettodiscusscomputer-basedtoolsformedicaldiagnosistrainingandtelemedicine.Withthefallingpriceofbroadbandcommunicationsthenewtechnologiesshouldstartanewtimewhentelemedicineandthesharingofmedicalinformationexperts’opinionsanddiagnosisarecommon.Thewriterchieflytalksabout______.
我的母亲说我们将在北逗留两个星期
Iwouldalmostratherseeyoudead.BobertS.CassattaleadingbankerofPhiladelphiashoutedwhenhistwenty-year-oldeldestdaughterannouncedthatshewantedtobecomeanartist.Inthe19thcenturyplayingatdrawingorpaintingondisheswasallrightforayoungladybutseriousworkinartwasnot.Andwhentheyounglady’sfamilyrackedamongthebestofPhiladelphia’ssocialfamiliessuchanideacouldnotevenbeconsidered.ThatwashowMaryCassattborn1844beganherstruggleasanartist.Shedidnottremblebeforeherfather’sangersheopposedhimwithcourageandatlastmadehimchangehismind.MaryCassattgaveuphersocialpositionandallthoughtsofathousandandafamilywhichinthosetimeswasunthinkableforayounglady.IntheendafterlongyearsofhardworkandperseveranceshebecameAmerica’smostimportantwomanartistandtheinternationallyrecognizedleadingwomanpainterofthetime.WhatdoweknowaboutRobertCassatt’scharacterfromthetext
我们将在明天下午举行班会
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 12.
Ifyouoftenfeeltiredandthedoctorcan’tfindanythingwrongwithyouyoumaybeinastateofSubhealth亚健康.Subhealthisastatebetweenhealthandillness.Mostofthesubhealthypeoplearemiddle-agedoneswhoareusuallystressedoutbecauseofworkandfamily.Andsomeofthemarestudentswhoarehavingexams.Ifyouaresubheahltyitisnotdifficultforyoutobecomewellsoon.Youshouldhavegoodlivinghabits.Forexampleyoushouldgetupearlyandgotobedearly.Andyoushouldexerciseregularly.Exercisingcankeepyouhealthy.Asformealsitisbettertoeatlesssaltandsugar.Vegetablesfruitandfishareimportanttoyourbody.Youshouldeatmoreofthem.Itisnotgoodtoeattoomuchatonemealbecauseitmaycauseunhealthychangesinthedigestivetract消化道.Andatlastabalanceddietisveryhelpfulinstayingawayfromsubhealth.Accordingtothepassagewhowillprobablybesubhealthy
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WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 8.
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Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater.Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed.AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthereisbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey.Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown.Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody.Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater.Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb.Thepassagetellsusthatthespider______.
Iwouldalmostratherseeyoudead.BobertS.CassattaleadingbankerofPhiladelphiashoutedwhenhistwenty-year-oldeldestdaughterannouncedthatshewantedtobecomeanartist.Inthe19thcenturyplayingatdrawingorpaintingondisheswasallrightforayoungladybutseriousworkinartwasnot.Andwhentheyounglady’sfamilyrackedamongthebestofPhiladelphia’ssocialfamiliessuchanideacouldnotevenbeconsidered.ThatwashowMaryCassattborn1844beganherstruggleasanartist.Shedidnottremblebeforeherfather’sangersheopposedhimwithcourageandatlastmadehimchangehismind.MaryCassattgaveuphersocialpositionandallthoughtsofathousandandafamilywhichinthosetimeswasunthinkableforayounglady.IntheendafterlongyearsofhardworkandperseveranceshebecameAmerica’smostimportantwomanartistandtheinternationallyrecognizedleadingwomanpainterofthetime.HowdidMrCassattreactwhenhisdaughtermadeherannouncement
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WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 14.
Iwouldalmostratherseeyoudead.BobertS.CassattaleadingbankerofPhiladelphiashoutedwhenhistwenty-year-oldeldestdaughterannouncedthatshewantedtobecomeanartist.Inthe19thcenturyplayingatdrawingorpaintingondisheswasallrightforayoungladybutseriousworkinartwasnot.Andwhentheyounglady’sfamilyrackedamongthebestofPhiladelphia’ssocialfamiliessuchanideacouldnotevenbeconsidered.ThatwashowMaryCassattborn1844beganherstruggleasanartist.Shedidnottremblebeforeherfather’sangersheopposedhimwithcourageandatlastmadehimchangehismind.MaryCassattgaveuphersocialpositionandallthoughtsofathousandandafamilywhichinthosetimeswasunthinkableforayounglady.IntheendafterlongyearsofhardworkandperseveranceshebecameAmerica’smostimportantwomanartistandtheinternationallyrecognizedleadingwomanpainterofthetime.WhatmadeMaryCassatt’sstruggletobecomearecognizedartistespeciallyhard
WhenDavewaseighteenheboughtasecondhandcarfor200sothathecouldtraveltoandfromworkmore1thanbybus.Itworkedquitewellforafewyearsbutthenitgotsooldanditwascostinghim2muchinrepairsthathedecidedthathehadbetter3it. Heaskedamonghisfriendstoseeifanyonewasparticularly4tobuyacheapcarbuttheyallknewthatitwasfallingtopiecesso5ofthemhadanydesiretobuyit.Dave’sfriendSamsawthathewas6whentheymetoneeveningandsaid"What’s7Dave" DavetoldhimandSamanswered"WellwhataboutadvertisingitinthepaperYoumay8moreforitthatwaythanthecostoftheadvertisement!"ThinkingthatSam’s9wassensibleheputanadvertisementinaneveningpaperwhichread"Forsale:smallcar10verylittlepetrolonlytwoowners.Bargainat50."Fortwodaysaftertheadvertisementfirstappearedtherewasno11.ButthenonSaturdayeveninghehadanenquiry.Amanrangupandsaidhewouldliketo12himaboutthecar."Allright"Davesaidfeelinghappy.Heaskedthemanwhetherteno’clockthenextmorningwouldbe13ornot."Fine"themansaid"andI’ll14mywife.Weintendtogoforarideinitto15it." ThenextmorningataquartertotenDaveparkedthecarinthesquareoutsidehisfrontdoor16towaitthereforthepeoplewhohad17hisadvertisement.EvenDavehadto18thatthecarreallylookedlikeawreck.Thensoonafterhehadgotthecarasclean19itcouldbeapolicecarstoppedjustbehindhimandapolicemangotout.HelookedatDave’scarandthensaid"Haveyoureportedthis20tousyetsir/ 2.
Somepeopleholdthatthemoreconservativetheworldbecomes______haveoldfurnitureoldhousesandoldpaintings.
WantaglanceofthefutureofhealthcareTakealookatthewaythevariousnetworksofpeopleaboutpatientcarearebeingconnectedtooneanotherandhowthisnewconnectivityisbeingexploitedtodelivermedicinetothepatient—nomatterwhereheorshemaybe.Onlinedoctorsofferingadvicebasedonnormalsymptomsarethemostobviousexample.Increasinglyhoweverremotediagnosiswillbebasedonrealphysiologicaldatafromtheactualpatient.AgroupfromtheUniversityofKentuckyhasshownthatbyusingpersonaldataassistanceplusamobilephoneitisperfectlypracticaltosendapatient’simportantsignsoverthetelephone.Withthiskindofequipmentthecryaskingwhethertherewasadoctorinthehousecouldwellbeathingofthepast.Othermedicaltechnologygroupsareworkingonapplyingtelemedicinetoruralcountrysidecare.Andatleastoneteamwantstousetelemedicineasatoolfordisasterneed—especiallyafterearthquakes.Onthewholethetrendistowardsprovidingglobalaccesstomedicaldataandexperts’opinions.Butthereisoneproblem.Bandwidthisthelimitingfactorforsendingcomplexmedicalpicturesaroundtheworld—CTphotosbeingoneofthebiggestbandwidthusers.Communicationsatellitesmaybeabletodealwiththeshort-termneedsduringdisasterssuchasearthquakesorwars.Butmedicineislookingtowardsboththesecond-generationInternetandthird-generationmobilephonesforthefutureofremotemedicalservice.Doctorshavemettodiscusscomputer-basedtoolsformedicaldiagnosistrainingandtelemedicine.Withthefallingpriceofbroadbandcommunicationsthenewtechnologiesshouldstartanewtimewhentelemedicineandthesharingofmedicalinformationexperts’opinionsanddiagnosisarecommon.Whichofthefollowingstatementsistrueaccordingtothetext
Somespidershuntonthegroundothersbuildwebstotraptheirfoodbutthegrasswaterspidercatchesitspreybyrunningalongthesurfaceofthewater.Thisspecialwaterspiderlivesonthegrassybanksofstreamswheremosquitoesdamselfliesandotherinsectscometofeedandbreed.AlthoughitisoneofthelargestspidersinNewZealandithasanunusualability.Itdoesn’tdisturbthewaterasitwaitsforitsmealandthereisbarelyaripplewhenitskimsacrossthesurfaceatlightningspeedtocatchitsprey.Grasswaterspidersdealswiftlywithlargerinsectslikedamselfliesbypullingtheirheadsunderthewaterandholdingthemthereuntiltheydrown.Afteramealthegrasswaterspiderspendsuptohalfanhourgroomingitself.Itwipesitseighteyesbrushesitsantennaeandtakesspecialcaretocleanthehairsonitsbody.Itisthehairsthattraptinybubblesofairsothatthespidercanrundownabladeofgrassandstayunderwaterforuptoanhourwhenitisfrightened.Thehairsalsokeepthespiderdryevenunderwater.Itisonlywhenthefemalespideriscaringfortheyoungthatshedoesnothuntonthewater.Aftermatingsheproducesalargeeggsacwhichshecarriesaroundforfiveweeks.Oncetheeggsstarttohatchsheattachesthesactosomebladesofgrassorathistle.Shethentearsthesacopenandreleasesthetinyspidersintothenurseryweb.Howdoesthegrasswaterspiderkillitsprey
Achildwhohasoncebeenpleasedwithatalelikesasaruletohaveitretoldinalmostthesamewordsbutthisshouldnotleadparentstotreatprintedfairystoriesasformaltexts.Itisalwaysmuchbettertotellastorythanreaditoutofabookandifaparentcanproducewhatintheactualsituationofthetimeandthechildisanimprovementontheprintedtextsomuchthebetter. Achargemadeagainstfairytalesisthattheyharmthechildbyfrighteninghimormakinghimsadthinking.Toprovethelatteronewouldhavetoshowinacontrolledexperimentthatchildrenwhohavereadfairystoriesweremoreoftensorryforcrueltythanthosewhohadnot.AstofearsthereareIthinksomecasesofchildrenbeingdangerouslyterrifiedbysomefairystory.Oftenhoweverthisarisesfromthechildhavingheardthestoryonce.Familiaritywiththestorybyrepetitionturnsthepainoffearintothepleasureofafearfacedandmastered.Therearealsopeoplewhoobjecttofairystoriesonthegroundsthattheyarenotobjectivelytruethatgiantswitchestwo-headeddragonsmagiccarpetsetc.donotexist;andthatinsteadofbeingfondofthestrangesideinfairytalesthechildshouldbetaughttolearntherealitybystudyinghistory.IfindsuchpeopleImustsaysopeculiarthatIdonotknowhowtoarguewiththem.IftheircaseweresoundtheworldshouldbefullofmadmenattemptingtoflyfromNewYorktoPhiladelphiaonastickorcoveringatelephonewithkissesinthebeliefthatitwastheirbelovedgirl-friend.Nofairystoryeverdeclaredtobeadescriptionoftherealworldandnocleverchildhaseverbelievedthatitwas. Accordingtothepassagegreatfearcantakeplaceinachildwhenthestoryis.
Achildwhohasoncebeenpleasedwithatalelikesasaruletohaveitretoldinalmostthesamewordsbutthisshouldnotleadparentstotreatprintedfairystoriesasformaltexts.Itisalwaysmuchbettertotellastorythanreaditoutofabookandifaparentcanproducewhatintheactualsituationofthetimeandthechildisanimprovementontheprintedtextsomuchthebetter. Achargemadeagainstfairytalesisthattheyharmthechildbyfrighteninghimormakinghimsadthinking.Toprovethelatteronewouldhavetoshowinacontrolledexperimentthatchildrenwhohavereadfairystoriesweremoreoftensorryforcrueltythanthosewhohadnot.AstofearsthereareIthinksomecasesofchildrenbeingdangerouslyterrifiedbysomefairystory.Oftenhoweverthisarisesfromthechildhavingheardthestoryonce.Familiaritywiththestorybyrepetitionturnsthepainoffearintothepleasureofafearfacedandmastered.Therearealsopeoplewhoobjecttofairystoriesonthegroundsthattheyarenotobjectivelytruethatgiantswitchestwo-headeddragonsmagiccarpetsetc.donotexist;andthatinsteadofbeingfondofthestrangesideinfairytalesthechildshouldbetaughttolearntherealitybystudyinghistory.IfindsuchpeopleImustsaysopeculiarthatIdonotknowhowtoarguewiththem.IftheircaseweresoundtheworldshouldbefullofmadmenattemptingtoflyfromNewYorktoPhiladelphiaonastickorcoveringatelephonewithkissesinthebeliefthatitwastheirbelovedgirl-friend.Nofairystoryeverdeclaredtobeadescriptionoftherealworldandnocleverchildhaseverbelievedthatitwas. Theauthor’smentionofsticksandtelephonesismeanttosuggestthat.
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