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? ?下面的短文后有2项测试任务：? ?(1)第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题；? ?(2)第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。...
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? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2—5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选择1个最佳
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选择1个最佳
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第1～4段每段选
? ?阅读下面这篇短文短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选
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TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
第三篇SaltyRicePlantBoostsHarvests Britishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore. TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty. Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice. Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.inLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind. Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive. ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse. OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld. Theattitudeoftheauthortowardstheresearchprojectis
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
Atthattimewedidnotfully{{U}}grasp{{/U}}thesignificanceofwhathadhappened.
Theshapeoflandsandoceansareslowlychangedwiththemovementsofplates.
Forsome{{U}}obscure{{/U}}reasonthesimplegameisbecomingverypopular.
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
Supertasterspreferhigh-saltcheesebecause
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TheformationoftheIsuasupracrustalbeltisthoughttohavestartedabout3.8billionyearsago.
ItcanbeinferredfromthelastparagraphthatO’Leary
Theseaturtle’snaturalhabitathasbeen{{U}}considerably{{/U}}reduced.
Itispossibleto{{U}}approach{{/U}}theprobleminadifferentway.
IgotanotefromMoira{{U}}urging{{/U}}metogetintouch.
Thewriter’spurposeofwritingthisarticleistoadvisepeople
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Thedecisiontoinvade{{U}}provoked{{/U}}stormsofprotest.
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
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Whichofthefollowingstatementsaboutmathistrue?
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
第二篇PleaseFastenYourSeatbelts Severeturbulence湍流cankillaircraftpassengers.NowintestflightsovertheRockyMountainsNASA美国航空航天局engineershavesuccessfullydetectedclear-airturbulenceupto10secondsbeforeanaircrafthitsit. Clear-airturbulenceoftencatchespilotsbysurprise.Invisibletoradaritisdifficulttoforecastandcanhurl用力抛出去passengersaboutthecabin.InDecember1997onepassengerdiedandahundredotherswereinjuredwhenunexpectedroughaircausedaUnitedAirlinesflightoverthePacifictodrop300metresinafewseconds. Howeverpassengerscanavoidseriousinjurybyfasteningtheirseatbelts.Itistheonlyantidote对策forthissortofthingssaysRodBogueprojectmanageratNASA’sDrydenFlightResearchCenterinEdwardsCalifornia. Thecentre’snewturbulencedetectorisbasedonlidarorlaserradarLaserpulsesaresentaheadoftheplaneandthesearethenreflectedbackbyparticlesintheair.ThetechniquedependsontheDopplereffect.Thewavelengthofthelightshiftsaccordingtothespeedatwhichtheparticlesareapproaching.Incalmairthespeedequalstheplane’sairspeed.Butastheparticlesswirl打漩inroughairtheirspeedofapproachincreasesordecreasesrapidly.Therateofchangeinspeedcorrespondstotheseverity激烈程度oftheturbulence. Inaseriesofteststhatbeganlastmontharesearchjetflewrepeatedlyintodisturbedairoverthemountainridges山脉nearPuebloColorado.Thelidardetectorspottedturbulencebetween3and8kilometresaheadanditsforecastsofstrengthanddurationcorrespondedcloselywiththeturbulencethattheplaneencountered. Boguesaysthathehadacomfortableamountoftimetofastenhisseatbelt.Theresearchersareplanningtoimprovethelidar’srangewithamorepowerfulbeam.Thesystemcouldbeinstalledoncommercialaircraftinthenextfewyears. Wecaninferfromthefifthparagraphthat
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
第三篇SaltyRicePlantBoostsHarvests Britishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore. TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty. Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice. Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.inLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind. Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive. ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse. OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld. WhichofthefollowingisNOTmentionedasacauseoftheproblemdiscussedinthepassage?
ScientistsonceestimatedthatEarth’scruststartedshiftingthreebillionyearsago.
Shealways{{U}}findsfaultwith{{/U}}everything.
第三篇SaltyRicePlantBoostsHarvests Britishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore. TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty. Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice. Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.inLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind. Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive. ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse. OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld. WhichofthefollowingstatementsaboutFlowersandYeoistrue?
TheAmericanFamily IntheAmericanfamilythehusbandandwifeusuallyshareimportantdecisionmaking.Whenthechildrenare___________51enoughtheytakepartaswell.Foreignersareoftensurprisedbythepermissiveness宽容ofAmericanparents.Theoldrulethatchildrenshouldbeseenandnotheardisrarely_______52andchildrenareoftenallowedtodo____________53theywishwithoutstrictcontroloftheirparents.Thefatherseldomexpectshischildrentolistentohim__________54questionandchildrenareencouragedtobe______________55atanearlyage.SomepeoplebelievethatAmericanparentscarrythisfreedom_________56far.Othersthinkthatastrongfatherimagewouldnot____________57theAmericanvaluesofequalityandindependence.BecauseAmericansemphasizetheimportanceofindependenceyoungpeopleareexpectedto_________58theirparentalfamiliesbythetimetheyhave________________59theirlateteensorearlytwenties.Indeednottodosoisoftenregardedasa____________60akindofweakdependence. Thispatternofindependenceoftenresultsinserious____________61fortheagingparentsofasmallfamily.TheaverageAmericanisexpectedtolive___________62theageof70.Thejob-retirementageis_______6365.Thechildrenhavelefthomemarriedand___________64theirownhouseholds.Atleast20percentofallpeopleover65donothaveenoughretirementincomes._________65themajorproblemofmanyelderlycouplesisnoteconomic.Theyfeeluselessandlonelywithneitheranoccupationnoraclosefamilygroup.
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