陕西专升本考试考试真题卷6.docx

陕西专升本考试考试真题卷6.docx

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陕西专升本考试考试真题卷6

2022陕西专升本考试考试真题卷（6）

本卷共分为1大题50小题，作答时间为180分钟，总分100分，60分及格。

一、单项选择题（共50题，每题2分。

每题的备选项中，只有一个最符合题意）

1.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear（变速器）inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity（遗传）alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.WhichofthefollowingisNOTtrue（）

A．Ifbothparentsareleft-handed,about50%oftheirchildrenwillbeso.

B．Thegreaterpartofleft-handershaveright-handedparents.

C．OneintenofAmericansareleft-handed.

D．Mostofuswillfavortheright.

2.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear（变速器）inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity（遗传）alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.Amongthelefthanders,（）

A．fewaremen

B．mostofthemarewomen

C．halfofthemaremen

D．twothirdsaremen

3.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear（变速器）inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity（遗传）alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.Whysofewpeopleareleft-handed（）

A．hasnothingtodowithheredity

B．isnotknownbyscientists

C．haslittletodowiththeworkingoftheirbrains

D．isthatleft-handersaremainlytwins

4.Imagineyouarealeft-hander.Suddenlyeverythingintheworldischanged.Thedoorlocksareonthewrongsideofdoors.Theshiftgear（变速器）inyourcarisinthewrongplace.Handlesontinopenersareonthewrongsideandturnthewrongway.Twenty-fivemillionAmericanswakeupeverydayinjustsuchasorrysituation.Theyareoneintenofuswhoareleft-handedandmustfacetheworlddesignedfortheright-handedmajority.Whyweareleftorright-handedremainsoneofthegreatestunsolvedmysteriesofscience.Weknowthatnearlytwooutofthreeleftiesaremenandthatleft-handednessrunsinfamilies.Accordingtoonestudyalmosthalfofthechildrenoftwoleft-handedparentswillbeleft-handed.TheScots-IrishfamilyKerrproducedsomanyleft-handersthatin1470thefamilybuiltitshousestairwaywithareversetwist.Ontheotherhand,heredity（遗传）alonecannotexplainlefties.Atleast84percentofthemarebornoftworight-handedparents.Andin12percentoftwins,onewillberight-handed,theotherleft.Perhapsthegreatestpuzzleofallisnotwhysomepeopleareleft-handed,butratherwhysofeware.Infact,almostequalnumbersofindividualswillfavoureithertherightortheleft.However,scientistsaretryingtosetthingsrightandtheyarebeginningtostudythemanywaysleft-handersdifferfromright-handersbyconsideringhowtheirbrainswork.HowmanyoftheAmericansareleft-handers（）

A．10%.

B．12%.

C．50%.

D．84%.

5.Asheartdiseasecontinuestobethenumber-onekillerintheUnitedStates,researchershavebecomeincreasinglyinterestedinidentifyingthepotentialriskfactorsthattriggerheartattacks.High-fatdietsandlifeinthefasttrackhavelongbeenknowntocontributetothehighincidenceofheartfailure.Butaccordingtonewstudies,thelistofriskfactorsmaybesignificantlylongerandquitesurprising.Heartfailure,forexample,appearstohaveseasonalandtemporalpatterns.Ahigherpercentageofheartattacksoccurincoldweather,andmorepeopleexperienceheartfailureonMondaythanonanyotherdayoftheweek.Inaddition,peoplearemoresusceptibletoheartattacksinthefirstfewhoursafterwaking.Cardiologistsfirstobservedthismorningphenomenoninthemid-1980,andhavesincediscoveredanumberofpossiblecauses.Anearly-morningriseinbloodpressure,heartrate,andconcentrationofheartstimulatinghormones,plusareductionofbloodflowtotheheart,mayallcontributetothehigherincidenceofheartattacksbetweenthehoursof8:

00AMand10:

00AM.Inotherstudies,bothbirthdaysandbachelorhoodhavebeenimplicatedasriskfactors.Statisticsrevealthatheartattackratesincreasesignificantlyforbothfemalesandmalesinthefewdaysimmediatelyprecedingandfollowingtheirbirthdays.Andunmarriedmenaremoreatriskforheartattacksthantheirmarriedcounterparts.Thoughstressisthoughttobelinkedinsomewaytoalloftheaforementionedriskfactors,intenseresearchcontinuesinthehopeoffurthercomprehendingwhyandhowheartfailureistriggered.WhichofthefollowingisNOTcitedasapossibleriskfactor（）

A．Highincholesterol.

B．Conjugalaffection.

C．Eatingfattyfoods.

D．Beingunderstress.

6.Asheartdiseasecontinuestobethenumber-onekillerintheUnitedStates,researchershavebecomeincreasinglyinterestedinidentifyingthepotentialriskfactorsthattriggerheartattacks.High-fatdietsandlifeinthefasttrackhavelongbeenknowntocontributetothehighincidenceofheartfailure.Butaccordingtonewstudies,thelistofriskfactorsmaybesignificantlylongerandquitesurprising.Heartfailure,forexample,appearstohaveseasonalandtemporalpatterns.Ahigherpercentageofheartattacksoccurincoldweather,andmorepeopleexperienceheartfailureonMondaythanonanyotherdayoftheweek.Inaddition,peoplearemoresusceptibletoheartattacksinthefirstfewhoursafterwaking.Cardiologistsfirstobservedthismorningphenomenoninthemid-1980,andhavesincediscoveredanumberofpossiblecauses.Anearly-morningriseinbloodpressure,heartrate,andconcentrationofheartstimulatinghormones,plusareductionofbloodflowtotheheart,mayallcontributetothehigherincidenceofheartattacksbetweenthehoursof8:

00AMand10:

00AM.Inotherstudies,bothbirthdaysandbachelorhoodhavebeenimplicatedasriskfactors.Statisticsrevealthatheartattackratesincreasesignificantlyforbothfemalesandmalesinthefewdaysimmediatelyprecedingandfollowingtheirbirthdays.Andunmarriedmenaremoreatriskforheartattacksthantheirmarriedcounterparts.Thoughstressisthoughttobelinkedinsomewaytoalloftheaforementionedriskfactors,intenseresearchcontinuesinthehopeoffurthercomprehendingwhyandhowheartfailureistriggered.Whichofthefollowingdoesthepassageinfer（）

A．Wenowfullyunderstandhowriskfactorstriggerhe