【单选题】 In Earth's infancy, its surface was warm enough for life ____ the young Sun was fainter than it is today.
A．( in spite of
B．( whether
C．( neither of which
D．( even though
A．( in spite of
B．( whether
C．( neither of which
D．( even though
【单选题】Country musiC
A、CommErCiAl oFFshoot oF thE Folk musiC oF thE rurAl south, Country musiC is AnAmEriCAn Art Form thAt gAinED worlDwiDE AppEAl AFtEr worlD wAr ⅱ. originAlly known As hillBilly or mountAin musiC, Country musiC grEw From thE Folk musiC thAt wAs Brought to northAmEriCA ByAnglo-CEltiC sEttlErs in thE 1700s AnD 1800s. thE musiC ChAngED As it CAmE in ContACt with EthniC musiC--ACADiAnCAjun) in louisiAnA, lAtin in thE southwEst,AFriCAn throughout muCh oF thE south--AnD suCh populAr musiC As thAt FounD in vAuDEvillE, minstrEl shows, AnD hAwAiiAn tEnt shows. it wAs Also CAllED Country AnD wEstErn musiC BECAusE oF its populArity with CowBoys.
trADitionAlly Country musiCiAns hAvE BEEn most proFiCiEnt on stringED instrumEnts. thE violin, or FiDDlE, wAs thE most populAr instrumEnt on thE FrontiEr BECAusE oF its EAsy portABility. to this DAy FiDDlE ContEsts rEmAin A FEAturE oF thE Country musiC sCEnE. thE BAnjo wAs ADAptED From thEAFriCAnAmEriCAn CulturE, AnD thE FivE-siring moDEl is now univErsAlly populAr Among pErFormErs oF thE stylE known As BluEgrAss. thE guitAr hAs long BEEn A stAplE oF Country musiC BAnDs AnD singErs. string BAss AnD hAwAiiAn guitAr hAvE BEEn usED sinCE thE 1920s, AnD thEir moDErn DEsCEnDAnts ArE thE ElECtriC BAss AnD thE pEDAl stEEl guitAr.Drums, piAnos, AnD ElECtriFiED instrumEnts, usED As EArly As thE 1930s By wEstErn swing BAnDs, ArE hEArD on Country rECorDings From thE 1950s.
in 1922 rADio stAtions wBAp in Fort worth, tEx. , AnD wsB、inAtlAntA, gA、, BroADCAst shows CAllED BArn DAnCEs, moDElED AFtEr thE inFormAl soCiAl DAnCing oF thE FrontiEr.ChiCAgo’s wls stArtED whAt BECAmE thE nAtionAlBArnDAnCE in 1924, AnD wsm in nAshvillE, tEnn., BEgAn itsBArnDAnCE in novEmBEr 1925, just onE month AFtEr going on thE Air. rECorD CompAniEs Also DisCovErED thE CommErCiAl possiBilitiEs oF this musiC、FiDDlErECkA、C、) roBErtson trAvElED to nEw yorkCity AnD in 1922 mADE thE First hillBilly rECorDs, "ArkAnsAs trAvElEr" AnD "sAlliE gooDin". thE gEorgiA FiDDlEr johnCArson hAD thE First sAlEs suCCEss thE nExt yEAr with his okEh rECorD oF "littlE olD logCABin in thE lAnE".A、tExAs nAtivE who ACtuAlly hAD voiCE trAining AnD light opErA ExpEriEnCE, vErnonDAlhArt (his rEAl nAmE wAs mArion slAughtEr) solD millions oF rECorDs in thE 1920s For DozEns oF DiFFErEnt CompAniEs. his First Big sEllErs wErE "thE prisonEr’s song" AnD "thE wrECk oF thE olD 97" For viCtor in 1924. in 1927 jimmiE roDgErs, originAlly A yoDElEr, mADE his First rECorDings.BECAusE roDgErs, viCtor rECorDs inspirED numErous mEn to BEComE Country EntErtAinErs, hE BECAmE known As thE FAthEr oFCountry musiC、
hollywooD’s singing CowBoys won For Country musiC nAtionAl AnD intErnAtionAl AuDiEnCEs During thE lAtEr 1930s.EvEn though rECorD sAlEs For Country AnD othEr typEs oF musiC slippED During thE grEAtDEprEssion, rADio ContinuED to BroADCAst A lArgE ArrAy oF livE Country musiC tAlEnt, usuAlly in thE EArly morning, noon, or lAtE night hours. nEw BArn DAnCEs wErE hEArD on thE AirwAvEs, AnD two oF thE loCAl shows gAinED nEtwork rADio AuDiEnCEs During thE 1930s.
worlD wAr ⅱ ACCElErAtED Country musiC’s growth AwAy From An ExClusivEly southErn AnD rurAl phEnomEnon. southErn sErviCEmEn took thE musiC with thEm to FAr-Flung pArts oF thE nAtion AnD thE worlD, whilE CiviliAn DEFEnsE workErs From thE south Brought thEir lovE oF thE musiC into thE vArious CEntErs oF wAr proDuCtion.
thE postwAr yEArs Brought A nEwFounD nAtionAl prospErity, whiCh BoostED Country musiC to grEAtEr CommErCiAl hEights. singErs AnD BusinEss ExECutivEs ClosEly tiED to thE musiC sought AnD won A nEw rEspECtABility From trADE pApErs AnD nAtionAl mEDiA、thE olD tErms hillBilly AnD mountAin wErE rEplACED By Country, AnD EvEn For A timE By Country AnD wEstErn, in rECognition oF thE nEw populArity oF thE CowBoy singErs on tElEvision.
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A、CommErCiAl oFFshoot oF thE Folk musiC oF thE rurAl south, Country musiC is AnAmEriCAn Art Form thAt gAinED worlDwiDE AppEAl AFtEr worlD wAr ⅱ. originAlly known As hillBilly or mountAin musiC, Country musiC grEw From thE Folk musiC thAt wAs Brought to northAmEriCA ByAnglo-CEltiC sEttlErs in thE 1700s AnD 1800s. thE musiC ChAngED As it CAmE in ContACt with EthniC musiC--ACADiAnCAjun) in louisiAnA, lAtin in thE southwEst,AFriCAn throughout muCh oF thE south--AnD suCh populAr musiC As thAt FounD in vAuDEvillE, minstrEl shows, AnD hAwAiiAn tEnt shows. it wAs Also CAllED Country AnD wEstErn musiC BECAusE oF its populArity with CowBoys.
trADitionAlly Country musiCiAns hAvE BEEn most proFiCiEnt on stringED instrumEnts. thE violin, or FiDDlE, wAs thE most populAr instrumEnt on thE FrontiEr BECAusE oF its EAsy portABility. to this DAy FiDDlE ContEsts rEmAin A FEAturE oF thE Country musiC sCEnE. thE BAnjo wAs ADAptED From thEAFriCAnAmEriCAn CulturE, AnD thE FivE-siring moDEl is now univErsAlly populAr Among pErFormErs oF thE stylE known As BluEgrAss. thE guitAr hAs long BEEn A stAplE oF Country musiC BAnDs AnD singErs. string BAss AnD hAwAiiAn guitAr hAvE BEEn usED sinCE thE 1920s, AnD thEir moDErn DEsCEnDAnts ArE thE ElECtriC BAss AnD thE pEDAl stEEl guitAr.Drums, piAnos, AnD ElECtriFiED instrumEnts, usED As EArly As thE 1930s By wEstErn swing BAnDs, ArE hEArD on Country rECorDings From thE 1950s.
in 1922 rADio stAtions wBAp in Fort worth, tEx. , AnD wsB、inAtlAntA, gA、, BroADCAst shows CAllED BArn DAnCEs, moDElED AFtEr thE inFormAl soCiAl DAnCing oF thE FrontiEr.ChiCAgo’s wls stArtED whAt BECAmE thE nAtionAlBArnDAnCE in 1924, AnD wsm in nAshvillE, tEnn., BEgAn itsBArnDAnCE in novEmBEr 1925, just onE month AFtEr going on thE Air. rECorD CompAniEs Also DisCovErED thE CommErCiAl possiBilitiEs oF this musiC、FiDDlErECkA、C、) roBErtson trAvElED to nEw yorkCity AnD in 1922 mADE thE First hillBilly rECorDs, "ArkAnsAs trAvElEr" AnD "sAlliE gooDin". thE gEorgiA FiDDlEr johnCArson hAD thE First sAlEs suCCEss thE nExt yEAr with his okEh rECorD oF "littlE olD logCABin in thE lAnE".A、tExAs nAtivE who ACtuAlly hAD voiCE trAining AnD light opErA ExpEriEnCE, vErnonDAlhArt (his rEAl nAmE wAs mArion slAughtEr) solD millions oF rECorDs in thE 1920s For DozEns oF DiFFErEnt CompAniEs. his First Big sEllErs wErE "thE prisonEr’s song" AnD "thE wrECk oF thE olD 97" For viCtor in 1924. in 1927 jimmiE roDgErs, originAlly A yoDElEr, mADE his First rECorDings.BECAusE roDgErs, viCtor rECorDs inspirED numErous mEn to BEComE Country EntErtAinErs, hE BECAmE known As thE FAthEr oFCountry musiC、
hollywooD’s singing CowBoys won For Country musiC nAtionAl AnD intErnAtionAl AuDiEnCEs During thE lAtEr 1930s.EvEn though rECorD sAlEs For Country AnD othEr typEs oF musiC slippED During thE grEAtDEprEssion, rADio ContinuED to BroADCAst A lArgE ArrAy oF livE Country musiC tAlEnt, usuAlly in thE EArly morning, noon, or lAtE night hours. nEw BArn DAnCEs wErE hEArD on thE AirwAvEs, AnD two oF thE loCAl shows gAinED nEtwork rADio AuDiEnCEs During thE 1930s.
worlD wAr ⅱ ACCElErAtED Country musiC’s growth AwAy From An ExClusivEly southErn AnD rurAl phEnomEnon. southErn sErviCEmEn took thE musiC with thEm to FAr-Flung pArts oF thE nAtion AnD thE worlD, whilE CiviliAn DEFEnsE workErs From thE south Brought thEir lovE oF thE musiC into thE vArious CEntErs oF wAr proDuCtion.
thE postwAr yEArs Brought A nEwFounD nAtionAl prospErity, whiCh BoostED Country musiC to grEAtEr CommErCiAl hEights. singErs AnD BusinEss ExECutivEs ClosEly tiED to thE musiC sought AnD won A nEw rEspECtABility From trADE pApErs AnD nAtionAl mEDiA、thE olD tErms hillBilly AnD mountAin wErE rEplACED By Country, AnD EvEn For A timE By Country AnD wEstErn, in rECognition oF thE nEw populArity oF thE CowBoy singErs on tElEvision.
【单选题】 Primitive humans probably did not (deliberately cook) food until (long) after they had learned (to use )fire for light and (warm.)
A．deliberately cook
B．long
C．to use
D．warm
A．deliberately cook
B．long
C．to use
D．warm
【单选题】 Autrefois ,il était interdit de ____________ en grève
A．s'inscrire
B．s'y prendre
C．s'adjoindre
D．se mettre
A．s'inscrire
B．s'y prendre
C．s'adjoindre
D．se mettre
【单选题】wAtErAnD、liFE、on mArs
1thE prEsEnCE or ABsEnCE oF wAtEr hAs A DirECt BEAring on thE possiBility oF liFE on othEr plAnEts. in thE ninEtEEnth CEntury, it wAs Commonly ACCEptED thAt liFE, pErhAps EvEn intElligEnt liFE, wAs wiDEsprEAD in thE solAr systEm, AnD mArs wAs An oBvious tArgEt in thE sEArCh For liFE. nEw photogrAphiC tEChnology oFFErED A wAy For AstronomErs to lEArn morE ABout thE rED plAnEt. in 1888, itAliAn AstronomEr giovAnni sChiApArElli proDuCED imAgEs thAt showED A nEtwork oF long, thin, DArk linEs Crossing thE surFACE oF mArs. hE CAllED thEsE FEAturEs CAnAli in itAliAn, whiCh BECAmE "CAnAls" or "ChAnnEls" inEnglish. thE strAngE AppEArAnCE oF thE CAnAls suggEstED to somE sCiEntists thAt thEy hAD BEEn FormED ArtiFiCiAlly rAthEr thAn nAturAlly. thE mystEry DEEpEnED whEn sChiApArElli oBsErvED thAt mAny oF thE CAnAls in thE photogrAphs wErE ACtuAlly DouBlE.
2othEr photogrAphiC imAgEs oF mArs rEvEAlED its sEAsonAlly ChAnging polAr iCE CAps AnD FEAturEs thAt AppEArED to BE AnCiEnt islAnDs loCAtED in whAt wAs now A Dry strEAmBED、whEn thE islAnDs wErE First DisCovErED, somE sCiEntists spECulAtED thAt A thiCk wAtEr-lADEn AtmosphErE CApABlE oF gEnErAting hEAvy rAins hAD onCE ExistED on mArs. howEvEr, othErs rEmAinED unConvinCED oF thE prEsEnCE oF wAtEr. thEn, in 1963, A tEAm oF AstronomErs oBtAinED A gooD photogrAphiC plAtE oF thE nEAr-inFrArED spECtrum oF mArs. thE photogrAph showED thAt, FAintly But DEFinitEly, wAtEr vApor linEs CoulD BE sEEn. this photogrAph EstABlishED thAt thErE rEAlly wAs wAtEr on mArs, though thE Amount wAs vEry smAll. toDAy, thE prEsEnCE oF wAtEr vApor in thE mArtiAn AtmosphErE is gEnErAlly ACCEptED, As is thE BEliEF thAt thE AtmosphErE wAs onCE muCh DEnsEr thAn it is now, with A muCh grEAtEr ABunDAnCE oF wAtEr vApor.
3thE surFACE oF mArs is Dry toDAy, But it DoEs ContAin signiFiCAnt Amounts oF iCE AnD signs thAt liquiD wAtEr onCE FlowED ovEr thE plAnEt.All oF thE loCAtions whErE EviDEnCE oF wAtEr hAs BEEn FounD ArE AnCiEnt, proBABly FormED vEry EArly in mArtiAn history.DAtA trAnsmittED From spACECrAFt on mArs in 2004 hAvE rEvEAlED thAt wAtEr wAs onCE Common ACross A vAst rEgion oF thE plAnEt, possiBly As shAllow lAkEs or sEAs thAt DriED out AnD thEn FillED up AgAin. thErE ArE signs thAt thE winD BlEw DEBris ArounD During Dry stAgEs. thEsE sEAs AnD lAkEs ExtEnDED ACross hunDrEDs oF thousAnDs oF squArE milEs, CrEAting hABitABlE ConDitions During long strEtChEs oF timE Billions oF yEArs Ago.
4 EviDEnCE oF wAtEr inCluDEs thE prEsEnCE oF vArious minErAls known As EvAporAtEs, DEposits lEFt BEhinD whEn liquiD wAtEr turns to vApor. smAll ArEAs oF minErAl DEposits hAvE BEEn FounD in vAllEs mArinEris, A hugE holE on mArs thAt is lArgEr thAn thE grAnDCAnyon onEArth. thE minErAls thErE ContAin wAtEr, so thEy hAD to BE FormED in thE prEsEnCE oF wAtEr. gEologiC rEsEArCh hAs Also turnED up ClAy AnD gypsum DEposits thAt wErE FormED By wAtEr in thE soil. roCks thAt ClEArly FormED in wAtEr ExtEnD throughout 300 mEtErs oF lAyErED mAtEriAls in sEvErAl loCAtions ACross thE mArtiAn plAins. thE lAyErs wErE Built up ovEr timE, whiCh mEAns wAtEr wAs prEsEnt, At lEAst tEmporArily, For ExtEnDED pErioDs on AnCiEnt mArs.
5 BEsiDEs thE iCE pACks At mArs’s polEs, AstronomErs hAvE DisCovErED A FrozEn sEA nEAr its EquAtor. this FrozEn sEA is thE sizE oF thE north sEA onEArth AnD AppEArs similAr to thE iCE pACks onAntArCtiCA、sCiEntists hAvE Also DEtECtED EviDEnCE oF lAvA Flows 20 million yEArs Ago As wEll As signs thAt somE volCAnoEs mAy still BE ACtivE. sEvErAl rECEntly FormED volCAniC ConEs nEAr mArs’s north polE inDiCAtE thAt thE plAnEt’s CorE mAy intErACt with thE surFACE, mEAning thErE wAs Both wArmth AnD moisturE in thE rECEnt pAs-CirCumstAnCEs thAt might hAvE supportED liFE.
6liquiD wAtEr is thE kEy ingrEDiEnt For liFE As wE know it. oF All thE othEr plAnEts in thE solAr systEm, mArs is most likEEArth. thE FACt th
1thE prEsEnCE or ABsEnCE oF wAtEr hAs A DirECt BEAring on thE possiBility oF liFE on othEr plAnEts. in thE ninEtEEnth CEntury, it wAs Commonly ACCEptED thAt liFE, pErhAps EvEn intElligEnt liFE, wAs wiDEsprEAD in thE solAr systEm, AnD mArs wAs An oBvious tArgEt in thE sEArCh For liFE. nEw photogrAphiC tEChnology oFFErED A wAy For AstronomErs to lEArn morE ABout thE rED plAnEt. in 1888, itAliAn AstronomEr giovAnni sChiApArElli proDuCED imAgEs thAt showED A nEtwork oF long, thin, DArk linEs Crossing thE surFACE oF mArs. hE CAllED thEsE FEAturEs CAnAli in itAliAn, whiCh BECAmE "CAnAls" or "ChAnnEls" inEnglish. thE strAngE AppEArAnCE oF thE CAnAls suggEstED to somE sCiEntists thAt thEy hAD BEEn FormED ArtiFiCiAlly rAthEr thAn nAturAlly. thE mystEry DEEpEnED whEn sChiApArElli oBsErvED thAt mAny oF thE CAnAls in thE photogrAphs wErE ACtuAlly DouBlE.
2othEr photogrAphiC imAgEs oF mArs rEvEAlED its sEAsonAlly ChAnging polAr iCE CAps AnD FEAturEs thAt AppEArED to BE AnCiEnt islAnDs loCAtED in whAt wAs now A Dry strEAmBED、whEn thE islAnDs wErE First DisCovErED, somE sCiEntists spECulAtED thAt A thiCk wAtEr-lADEn AtmosphErE CApABlE oF gEnErAting hEAvy rAins hAD onCE ExistED on mArs. howEvEr, othErs rEmAinED unConvinCED oF thE prEsEnCE oF wAtEr. thEn, in 1963, A tEAm oF AstronomErs oBtAinED A gooD photogrAphiC plAtE oF thE nEAr-inFrArED spECtrum oF mArs. thE photogrAph showED thAt, FAintly But DEFinitEly, wAtEr vApor linEs CoulD BE sEEn. this photogrAph EstABlishED thAt thErE rEAlly wAs wAtEr on mArs, though thE Amount wAs vEry smAll. toDAy, thE prEsEnCE oF wAtEr vApor in thE mArtiAn AtmosphErE is gEnErAlly ACCEptED, As is thE BEliEF thAt thE AtmosphErE wAs onCE muCh DEnsEr thAn it is now, with A muCh grEAtEr ABunDAnCE oF wAtEr vApor.
3thE surFACE oF mArs is Dry toDAy, But it DoEs ContAin signiFiCAnt Amounts oF iCE AnD signs thAt liquiD wAtEr onCE FlowED ovEr thE plAnEt.All oF thE loCAtions whErE EviDEnCE oF wAtEr hAs BEEn FounD ArE AnCiEnt, proBABly FormED vEry EArly in mArtiAn history.DAtA trAnsmittED From spACECrAFt on mArs in 2004 hAvE rEvEAlED thAt wAtEr wAs onCE Common ACross A vAst rEgion oF thE plAnEt, possiBly As shAllow lAkEs or sEAs thAt DriED out AnD thEn FillED up AgAin. thErE ArE signs thAt thE winD BlEw DEBris ArounD During Dry stAgEs. thEsE sEAs AnD lAkEs ExtEnDED ACross hunDrEDs oF thousAnDs oF squArE milEs, CrEAting hABitABlE ConDitions During long strEtChEs oF timE Billions oF yEArs Ago.
4 EviDEnCE oF wAtEr inCluDEs thE prEsEnCE oF vArious minErAls known As EvAporAtEs, DEposits lEFt BEhinD whEn liquiD wAtEr turns to vApor. smAll ArEAs oF minErAl DEposits hAvE BEEn FounD in vAllEs mArinEris, A hugE holE on mArs thAt is lArgEr thAn thE grAnDCAnyon onEArth. thE minErAls thErE ContAin wAtEr, so thEy hAD to BE FormED in thE prEsEnCE oF wAtEr. gEologiC rEsEArCh hAs Also turnED up ClAy AnD gypsum DEposits thAt wErE FormED By wAtEr in thE soil. roCks thAt ClEArly FormED in wAtEr ExtEnD throughout 300 mEtErs oF lAyErED mAtEriAls in sEvErAl loCAtions ACross thE mArtiAn plAins. thE lAyErs wErE Built up ovEr timE, whiCh mEAns wAtEr wAs prEsEnt, At lEAst tEmporArily, For ExtEnDED pErioDs on AnCiEnt mArs.
5 BEsiDEs thE iCE pACks At mArs’s polEs, AstronomErs hAvE DisCovErED A FrozEn sEA nEAr its EquAtor. this FrozEn sEA is thE sizE oF thE north sEA onEArth AnD AppEArs similAr to thE iCE pACks onAntArCtiCA、sCiEntists hAvE Also DEtECtED EviDEnCE oF lAvA Flows 20 million yEArs Ago As wEll As signs thAt somE volCAnoEs mAy still BE ACtivE. sEvErAl rECEntly FormED volCAniC ConEs nEAr mArs’s north polE inDiCAtE thAt thE plAnEt’s CorE mAy intErACt with thE surFACE, mEAning thErE wAs Both wArmth AnD moisturE in thE rECEnt pAs-CirCumstAnCEs thAt might hAvE supportED liFE.
6liquiD wAtEr is thE kEy ingrEDiEnt For liFE As wE know it. oF All thE othEr plAnEts in thE solAr systEm, mArs is most likEEArth. thE FACt th
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