2022年4月自考00794综合英语一试题及答案含解析

综合英语（一）年月真题

0079420224

1、【单选题】Mynewcoatcostsmetwiceas________astheblackoneIbought

lastyear.

much

many

A:

more

B:

most

C:

答D:案：A

2、【单选题】Heissaid________abroad,butIdon'tknowwhichcountryhestudied

in.

tostudy

tohavestudied

A:

tobestudying

B:

tohavebeenstudying

C:

答D:案：B

3、【单选题】Westayedinafishingvillage________themainsquareislittle

morethanagiantpatchoflawn.

that

which

A:

where

B:

what

C:

答D:案：C

4、【单选题】Ifeel,________mygrandfatherfelt50yearsago,thatthereisso

muchtocelebrateinourcountry.

as

since

A:

when

B:

though

C:

答D:案：A

5、【单选题】________,Icouldnothavefinishedthecoursepaperaheadofthe

deadline.

Despitehishelp

Shouldhehelp

A:

Ifhehadhelped

B:

Butforhishelp

C:

答D:案：D

6、【单选题】Thedisagreementstemsfromthefact________heusedinaccurate

dataforhisresearch.

that

how

A:

what

B:

which

C:

答D:案：A

7、【单选题】Johnistheonlyoneofthecandidateswho________forourcompany

fortenyears.

works

worked

A:

hasworked

B:

haveworked

C:

答D:案：C

8、【单选题】Abodyinmotionwill______________inmotionunlessactedonbyan

outsideforce.

turn

remain

A:

stand

B:

become

C:

答D:案：B

9、【单选题】Sometechnologieshelpdriversseethingseasilythatusedtobe

hard________.

tosee

tobeseen

A:

tohaveseen

B:

C:

tohavebeenseen

答D:案：A

10、【单选题】Igavemyconsenttohisplanyesterday,but______secondthoughts,

Imustrefusenow.

with

on

A:

of

B:

in

C:

答D:案：B

11、【单选题】Shehasbeenteachingthestudentswholeheartedly

to____________Frenchat"A"Level.

getthemover

getthemon

A:

getthemthrough

B:

getthemround

C:

答D:案：C

12、【单选题】Thetestresultsofthetopperformerswerecomparedwith

__________oftheaverageandbelow-averageperformers.

this

that

A:

these

B:

those

C:

答D:案：D

13、【单选题】Tim____________twoyearsofserviceinthewestbeforehe

continuedhisstudy.

completes

wouldcomplete

A:

hascompleted

B:

hadcompleted

C:

答D:案：D

14、【单选题】IfIweretogiveyouanhonestresponse,I________saynotoyour

proposal.

will

shall

A:

would

B:

may

C:

答D:案：C

15、【单选题】Ilike__________ofthereports.Theyarebothunreasonable.

none

neither

A:

all

B:

either

C:

答D:案：B

16、【单选题】You_________playingthepianoalot,foryourperformancetonight

isreallywonderfully.

canhavepracticed

musthavepracticed

A:

shouldhavepracticed

B:

wouldhavepracticed

C:

答D:案：B

17、【单选题】We'relookingforwardtoyourdecision._________youtakethejob

orleaveitmakesalotofdifferencetous.

How

What

A:

Why

B:

Whether

C:

答D:案：D

18、【单选题】Hethoughthappinesswasthepursuitofeveryone,_________?

wasit

didit

A:

wasn'tit

B:

didn'tit

C:

答D:案：C

19、【单选题】Inoddedpolitely,thinkingthatnoneofthishad_________todo

withthetopicoftheinterview.

anything

something

A:

nothing

B:

everything

C:

答D:案：A

20、【单选题】_________doestheteachercriticizeherstudentsharshly.

Always

Certainly

A:

Sometimes

B:

Seldom

C:

答D:案：D

21、【单选题】Inordertopreventcertaininfectiousdiseases,doctorsand

expertsoftenadvisepeople:“Washyourhandsoftenwithsoapandwaterforat

least20seconds.”It’scommon-senseadvice.Thesurfactants（表面活性剂）in

soapliftgermsfromtheskin,andwaterthenwashesthemaway.Soapisaconsumer

productfoundineveryhouseholdacrosstheworld.Yetfewpeopleknowthelong

anddirtyhistoryofmakingsoap,theproductweallrelyontocleanourskin.

AncientMesopotamianswerefirsttoproduceakindofsoapbycookingfattyacids

（酸性物质）likethefatfromadeadcow,sheeporgoat—togetherwithwater

andanalkaline（碱性的）substancefromwoodashes.Theresultwasakindof

stickysubstancethatliftedawaydirt.Ancientpeopleusedtheseearlysoapsto

cleanwoolorcottonfibersbeforeweavingthemintocloth,ratherthanfor

keepinghumansclean.NoteventheGreeksandRomans,whopioneeredrunningwater

andpublicbaths,usedsoaptocleantheirbodies.Instead,menandwomenkept

themselvesinwaterbathsandthenappliedscentedoliveoilontheirbodies.They

usedametalorwoodscrapertoremoveanyremainingoilorgrime.BytheMiddle

Ages,newvegetable-oil-basedsoaps,whichwerewelcomedfortheirmildnessand

purityandsmelledgood,hadcomeintouseasluxuryitemsamongEurope’smost

privilegedclasses.Thefirstofthese,agreen,olive-oil-basedbarsoapmixed

withfragrantvegetableoil,wasproducedinSyriaandbroughttoEuropeby

Christiancrusaders（十字军）andtraders.French,Italian,Spanishandeventually

Englishversionssoonfollowed.Ofthese,Castilesoapwasthebestknown.The

white,olive-oil-basedbarsoapwasawildlypopulartoiletitemamongEuropean

royals.ThesettlementoftheAmericancoloniestookplaceinanagewhen

mostEuropeansturnedawayfromregularbathingoutoffearthatwater

actuallyspreaddisease.Atthattime,soapwasonlyusedforhouseholdcleaning

bycolonists.Inthenewnation,thefoundingofsoapfactorieslike

Colgate,foundedin1807,orP&Q;foundedin1837,increasedsoapproductionbut

didlittletoalteritsingredientsoruse.Middle-classAmericanshad

resumedwaterbathing,butstillavoidedsoap.ItwasduringtheCivilWarthat

soapwasfirstusedinbathingforpersonalcleaningandthepracticecaughton.

Today'scommerciallymanufacturedsoapsarehighlyspecialized,lab-

engineeredproducts,pleasingtothesenses,buttheycannotfullymaskitsmostly

dirtyingredients,especiallyitspetrol-basedcontents.Whatdidancientpeople

usesoapsforaccordingtoParagraph3?

Cleaningrawmaterialsforcloth.

Liftingdirtfromtheirbodies.

A:

Makingfragrantoilforbathing.

B:

Removinggrimefromtheskin.

C:

答D:案：A

22、【单选题】Inordertopreventcertaininfectiousdiseases,doctorsand

expertsoftenadvisepeople:“Washyourhandsoftenwithsoapandwaterforat

least20seconds.”It’scommon-senseadvice.Thesurfactants（表面活性剂）in

soapliftgermsfromtheskin,andwaterthenwashesthemaway.Soapisaconsumer

productfoundineveryhouseholdacrosstheworld.Yetfewpeopleknowthelong

anddirtyhistoryofmakingsoap,theproductweallrelyontocleanourskin.

AncientMesopotamianswerefirsttoproduceakindofsoapbycookingfattyacids

（酸性物质）likethefatfromadeadcow,sheeporgoat—togetherwithwater

andanalkaline（碱性的）substancefromwoodashes.Theresultwasakindof

stickysubstancethatliftedawaydirt.Ancientpeopleusedtheseearlysoapsto

cleanwoolorcottonfibersbeforeweavingthemintocloth,ratherthanfor

keepinghumansclean.NoteventheGreeksandRomans,whopioneeredrunningwater

andpublicbaths,usedsoaptocleantheirbodies.Instead,menandwomenkept

themselvesinwaterbathsandthenappliedscentedoliveoilontheirbodies.They

usedametalorwoodscrapertoremoveanyremainingoilorgrime.BytheMiddle

Ages,newvegetable-oil-basedsoaps,whichwerewelcomedfortheirmildnessand

purityandsmelledgood,hadcomeintouseasluxuryitemsamongEurope’smost

privilegedclasses.Thefirstofthese,agreen,olive-oil-basedbarsoapmixed

withfragrantvegetableoil,wasproducedinSyriaandbroughttoEuropeby

Christiancrusaders（十字军）andtraders.French,Italian,Spanishandeventually

Englishversionssoonfollowed.Ofthese,Castilesoapwasthebestknown.The

white,olive-oil-basedbarsoapwasawildlypopulartoiletitemamongEuropean

royals.ThesettlementoftheAmericancoloniestookplaceinanagewhen

mostEuropeansturnedawayfromregularbathingoutoffearthatwater

actuallyspreaddisease.Atthattime,soapwasonlyusedforhouseholdcleaning

bycolonists.Inthenewnation,thefoundingofsoapfactorieslike

Colgate,foundedin1807,orP&Q;foundedin1837,increasedsoapproductionbut

didlittletoalteritsingredientsoruse.Middle-classAmericanshad

resumedwaterbathing,butstillavoidedsoap.ItwasduringtheCivilWarthat

soapwasfirstusedinbathingforpersonalcleaningandthepracticecaughton.

Today'scommerciallymanufacturedsoapsarehighlyspecialized,lab-

engineeredproducts,pleasingtothesenses,buttheycannotfullymaskitsmostly

dirtyingredients,especiallyitspetrol-basedcontents.Accordingtothepassage,

wherewasthefirstvegetable-oil-basedsoapmade?

Italy.

Syria.

A:

Spain.

B:

France.

C:

答D:案：B

23、【单选题】Inordertopreventcertaininfectiousdiseases,doctorsand

expertsoftenadvisepeople:“Washyourhandsoftenwithsoapandwaterforat

least20seconds.”It’scommon-senseadvice.Thesurfactants（表面活性剂）in

soapliftgermsfromtheskin,andwaterthenwashesthemaway.Soapisaconsumer

productfoundineveryhouseholdacrosstheworld.Yetfewpeopleknowthelong

anddirtyhistoryofmakingsoap,theproductweallrelyontocleanourskin.

AncientMesopotamianswerefirsttoproduceakindofsoapbycookingfattyacids

（酸性物质）likethefatfromadeadcow,sheeporgoat—togetherwithwater

andanalkaline（碱性的）substancefromwoodashes.Theresultwasakindof

stickysubstancethatliftedawaydirt.Ancientpeopleusedtheseearlysoapsto

cleanwoolorcottonfibersbeforeweavingthemintocloth,ratherthanfor

keepinghumansclean.NoteventheGreeksandRomans,whopioneeredrunningwater

andpublicbaths,usedsoaptocleantheirbodies.Instead,menandwomenkept

themselvesinwaterbathsandthenappliedscentedoliveoilontheirbodies.They

usedametalorwoodscrapertoremoveanyremainingoilorgrime.BytheMiddle

Ages,newvegetable-oil-basedsoaps,whichwerewelcomedfortheirmildnessand

purityandsmelledgood,hadcomeintouseasluxuryitemsamongEurope’smost

privilegedclasses.Thefirstofthese,agreen,olive-oil-basedbarsoapmixed

withfragrantvegetableoil,wasproducedinSyriaandbroughttoEuropeby

Christiancrusaders（十字军）andtraders.French,Italian,Spanishandeventually

Englishversionssoonfollowed.Ofthese,Castilesoapwasthebestknown.The

white,olive-oil-basedbarsoapwasawildlypopulartoiletitemamongEuropean

royals.ThesettlementoftheAmericancoloniestookplaceinanagewhen

mostEuropeansturnedawayfromregularbathingoutoffearthatwater

actuallyspreaddisease.Atthattime,soapwasonlyusedforhouseholdcleaning

bycolonists.Inthenewnation,thefoundingofsoapfactorieslike

Colgate,foundedin1807,orP&Q;foundedin1837,increasedsoapproductionbut

didlittletoalteritsingredientsoruse.Middle-classAmericanshad

resumedwaterbathing,butstillavoidedsoap.ItwasduringtheCivilWarthat

soapwasfirstusedinbathingforpersonalcleaningandthepracticecaughton.

Today'scommerciallymanufacturedsoapsarehighlyspecialized,lab-

engineeredproducts,pleasingtothesenses,buttheycannotfullymaskitsmostly

dirtyingredients,especiallyitspetrol-basedcontents.WhydidmostEuropeans

turnawayfromregularbathing?

Theyhadnoaccesstosoapforbathing.

Theywereworriedabouttheshortageofwater.

A:

Theywereafraidthatwatercouldspreaddisease.

B:

Theydidn'twanttousesoapmadeofdirtyingredients.

C:

答D:案：C

24、【单选题】Inordertopreventcertaininfectiousdiseases,doctorsand

expertsoftenadvisepeople:“Washyourhandsoftenwithsoapandwaterforat

least20seconds.”It’scommon-senseadvice.Thesurfactants（表面活性剂）in

soapliftgermsfromtheskin,andwaterthenwashesthemaway.Soapisaconsumer

productfoundineveryhouseholdacrosstheworld.Yetfewpeopleknowthelong

anddirtyhistoryofmakingsoap,theproductweallrelyontocleanourskin.

AncientMesopotamianswerefirsttoproduceakindofsoapbycookingfattyacids

（酸性物质）likethefatfromadeadcow,sheeporgoat—togetherwithwater

andanalkaline（碱性的）substancefromwoodashes.Theresultwasakindof

stickysubstancethatliftedawaydirt.Ancientpeopleusedtheseearlysoapsto

cleanwoolorcottonfibersbeforeweavingthemintocloth,ratherthanfor

keepinghumansclean.NoteventheGreeksandRomans,whopioneeredrunningwater

andpublicbaths,usedsoaptocleantheirbodies.Instead,menandwomenkept

themselvesinwaterbathsandthenappliedscentedoliveoilontheirbodies.They

usedametalorwoodscrapertoremoveanyremainingoilorgrime.BytheMiddle

Ages,newvegetable-oil-basedsoaps,whichwerewelcomedfortheirmildnessand

purityandsmelledgood,hadcomeintouseasluxuryitemsamongEurope’smost

privilegedclasses.Thefirstofthese,agreen,olive-oil-basedbarsoapmixed

withfragrantvegetableoil,wasproducedinSyriaandbroughttoEuropeby

Christiancrusaders（十字军）andtraders.French,Italian,Spanishandeventually

Englishversionssoonfollowed.Ofthese,Castilesoapwasthebestknown.The

white,olive-oil-basedbarsoapwasawildlypopulartoiletitemamongEuropean

royals.ThesettlementoftheAmericancoloniestookplaceinanagewhen

mostEuropeansturnedawayfromregularbathingoutoffearthatwater

actuallyspreaddisease.Atthattime,soapwasonlyusedforhouseholdcleaning

bycolonists.Inthenewnation,thefoundingofsoapfactorieslike

Colgate,foundedin1807,orP&Q;foundedin1837,increasedsoapproductionbut

didlittletoalteritsingredientsoruse.Middle-classAmericanshad

resumedwaterbathing,butstillavoidedsoap.ItwasduringtheCivilWarthat

soapwasfirstusedinbathingforpersonalcleaningandthepracticecaughton.

Today'scommerciallymanufacturedsoapsarehighlyspecialized,lab-

engineeredproducts,pleasingtothesenses,buttheycannotfullymaskitsmostly

dirtyingredients,especiallyitspetrol-basedcontents.Whatdoestheunderlined

phrase“caughton"inParagraph5mean?

Grewoutdated.

Gotvaluable.

A:

Remaineduseful.

B:

Becamepopular.

C:

答D:案：D

25、【单选题】Inordertopreventcertaininfectiousdiseases,doctorsand

expertsoftenadvisepeople:“Washyourhandsoftenwithsoapandwaterforat

least20seconds.”It’scommon-senseadvice.Thesurfactants（表面活性剂）in

soapliftgermsfromtheskin,andwaterthenwashesthemaway.Soapisaconsumer

productfoundineveryhouseholdacrosstheworld.Yetfewpeopleknowthelong

anddirtyhistoryofmakingsoap,theproductweallrelyontocleanourskin.

AncientMesopotamianswerefirsttoproduceakindofsoapbycookingfattyacids

（酸性物质）likethefatfromadeadcow,sheeporgoat—togetherwithwater

andanalkaline（碱性的）substancefromwoodashes.Theresultwasakindof

stickysubstancethatliftedawaydirt.Ancientpeopleusedtheseearlysoapsto

cleanwoolorcottonfibersbeforeweavingthemintocloth,ratherthanfor

keepinghumansclean.NoteventheGreeksandRomans,whopioneeredrunningwater

andpublicbaths,usedsoaptocleantheirbodies.Instead,menandwomenkept

themselvesinwaterbathsandthenappliedscentedoliveoilontheirbodies.They

usedametalorwoodscrapertoremoveanyremainingoilorgrime.BytheMiddle

Ages,newvegetable-oil-basedsoaps,whichwerewelcomedfortheirmildnessand

purityandsmelledgood,hadcomeintouseasluxuryitemsamongEurope’smost

privilegedclasses.Thefirstofthese,agreen,olive-oil-basedbarsoapmixed

withfragrantvegetableoil,wasproducedinSyriaandbroughttoEuropeby

Christiancrusaders（十字军）andtraders.French,Italian,Spanishandeventually

Englishversionssoonfollowed.Ofthese,Castilesoapwasthebestknown.The

white,olive-oil-basedbarsoapwasawildlypopulartoiletitemamongEuropean

royals.ThesettlementoftheAmericancoloniestookplaceinanagewhen

mostEuropeansturnedawayfromregularbathingoutoffearthatwater

actuallyspreaddisease.Atthattime,soapwasonlyusedforhouseholdcleaning

bycolonists.Inthenewnation,thefoundingofsoapfactorieslike

Colgate,foundedin1807,orP&Q;foundedin1837,increasedsoapproductionbut

didlittletoalteritsingredientsoruse.Middle-classAmericanshad

resumedwaterbathing,butstillavoidedsoap.ItwasduringtheCivilWarthat

soapwasfirstusedinbathingforpersonalcleaningandthepracticecaughton.

Today'scommerciallymanufacturedsoapsarehighlyspecialized,lab-

engineeredproducts,pleasingtothesenses,buttheycannotfullymaskitsmostly

dirtyingredients,especiallyitspetrol-basedcontents.Whichmightbethebest

titleforthispassage?

TheWideUseofSoap

TheIngredientsofSoap

A:

TheHistoryofSoap

B:

TheFunctionsofSoap

C:

答D:案：C

26、【单选题】Itseemsintuitive（直觉的）thatchildren'sschoolworkwillget

worseiftheyspendtoomuchtimegazingattheirphonesinsteadofgettingtobed

orgettingsomeexercise.Andthatisbroadlywhatapublishedstudyhasfound.But

isitthefinalword,andshouldparentsbepanickedintopullingtheplugon

theirkids'devices?ResearchersinCanadaanalyzedlifestyledatafrom

questionnairestakenby4,520USchildrenaged8to11.Thechildrenalso

performedavarietyofstandardcognitiontests.JeremyWalshattheChildren's

HospitalofEasternOntarioResearchInstituteinOttawa,Canada,andhis

colleaguesevaluatedhowwellthechildrenmetvariousCanadiangovernment

guidelines.Thesesuggestlimitingscreentimeto2hoursaday,sleepingfor9to

11hoursanightandspendingatleastanhourbeingphysicallyactive.Morethan

athird—1,655children一mettheguidelineforlimitingscreentime,andtheir

averageperformanceinthecognitivetestswas4.5percenthigherthanthatof

the1,330childrenwhometnoneoftheguidelines.Thegainwasevenhigher,at

5.2percent,forthosemeetingboththescreen-timeandsleeprecommendations.

So,armedwiththeseresults,shouldparentsbeclampingdownonscreenuse?Walsh

himselfsaysthefindingsaretemporary."Alltheseresultsneedtobetemperedby

thefactthatitwasonlya_snapshot_ofchildrenatonepointintime,"hesays.

Anotherlimitationisthatthesurveydidn'trevealwhatthechildrenweredoing

ontheirscreens,whichcouldbeeducationalortrivial（无聊的）.“Thestudyis

limitedbytreatingallscreentimeasequal,”saysHeatherKirkorianatthe

UniversityofWisconsin-Madison.“Totrulyunderstandtheimpactofdigitalmedia

onchildren,researchersmustunderstandnotonlyhowmuch,butalsohow,what,

whereandwithwhomthey’rewatching.”Itisalsounclearwhetherthe

questionnairescanproduceaccuratedata."The8-to11-year-oldchildrenreported

theirownscreenandphysicalactivitybehavior,andmanymayhavestruggledtodo

thisaccurately,"saysKirstenCorderattheUniversityofCambridge."Datalike

thesearelikelytohavedifferenttypesoferrorwhichcanmakeithardertobe

certainabouttheresults.”Howeverreliabletheresults,researchersagreed

thatparentsshouldtrytosetsomelimitsonscreentime,especiallywhenbedtime

approaches."Screentimebeforebedisdoublyproblematicbecauseitkeepskidsup

later,andexposuretolightimpairs（损害）sleepquality,”saysEduardoEsteban

BustamanteattheUniversityofIllinoisinChicago.Walshhassimilarfeelings:

"Weshowthatexcessivescreentimebeforebedhasanegativeimpactonsleep,

whichisimportantfordevelopmentofcognitionandthebraingenerally"hesays.

Whatdoes“asnapshot”meaninParagraph5?

Adimview.

Avividimage.

A:

Aclearphoto.

B:

Abriefglimpse.

C:

答D:案：D

27、【单选题】Itseemsintuitive（直觉的）thatchildren'sschoolworkwillget

worseiftheyspendtoomuchtimegazingattheirphonesinsteadofgettingtobed

orgettingsomeexercise.Andthatisbroadlywhatapublishedstudyhasfound.But

isitthefinalword,andshouldparentsbepanickedintopullingtheplugon

theirkids'devices?ResearchersinCanadaanalyzedlifestyledatafrom

questionnairestakenby4,520USchildrenaged8to11.Thechildrenalso

performedavarietyofstandardcognitiontests.JeremyWalshattheChildren's

HospitalofEasternOntarioResearchInstituteinOttawa,Canada,andhis

colleaguesevaluatedhowwellthechildrenmetvariousCanadiangovernment

guidelines.Thesesuggestlimitingscreentimeto2hoursaday,sleepingfor9to

11hoursanightandspendingatleastanhourbeingphysicallyactive.Morethan

athird—1,655children一mettheguidelineforlimitingscreentime,andtheir

averageperformanceinthecognitivetestswas4.5percenthigherthanthatof

the1,330childrenwhometnoneoftheguidelines.Thegainwasevenhigher,at

5.2percent,forthosemeetingboththescreen-timeandsleeprecommendations.

So,armedwiththeseresults,shouldparentsbeclampingdownonscreenuse?Walsh

himselfsaysthefindingsaretemporary."Alltheseresultsneedtobetemperedby

thefactthatitwasonlya_snapshot_ofchildrenatonepointintime,"hesays.

Anotherlimitationisthatthesurveydidn'trevealwhatthechildrenweredoing

ontheirscreens,whichcouldbeeducationalortrivial（无聊的）.“Thestudyis

limitedbytreatingallscreentimeasequal,”saysHeatherKirkorianatthe

UniversityofWisconsin-Madison.“Totrulyunderstandtheimpactofdigitalmedia

onchildren,researchersmustunderstandnotonlyhowmuch,butalsohow,what,

whereandwithwhomthey’rewatching.”Itisalsounclearwhetherthe

questionnairescanproduceaccuratedata."The8-to11-year-oldchildrenreported

theirownscreenandphysicalactivitybehavior,andmanymayhavestruggledtodo

thisaccurately,"saysKirstenCorderattheUniversityofCambridge."Datalike

thesearelikelytohavedifferenttypesoferrorwhichcanmakeithardertobe

certainabouttheresults.”Howeverreliabletheresults,researchersagreed

thatparentsshouldtrytosetsomelimitsonscreentime,especiallywhenbedtime

approaches."Screentimebeforebedisdoublyproblematicbecauseitkeepskidsup

later,andexposuretolightimpairs（损害）sleepquality,”saysEduardoEsteban

BustamanteattheUniversityofIllinoisinChicago.Walshhassimilarfeelings:

"Weshowthatexcessivescreentimebeforebedhasanegativeimpactonsleep,

whichisimportantfordevelopmentofcognitionandthebraingenerally"hesays.

AccordingtoParagraph6,whatisthelimitationofthesurvey?

Itdoesn5tcoveranadequatenumberofchildren.

Itdoesn'ttakeintoconsiderationchildren'sgender.

A:

Itfailstoshowthetypesofchildrenscreenactivities.

B:

Itfailstodisplaytheimpactofphonesonchildren'shealth.

C:

答D:案：C

28、【单选题】Itseemsintuitive（直觉的）thatchildren'sschoolworkwillget

worseiftheyspendtoomuchtimegazingattheirphonesinsteadofgettingtobed

orgettingsomeexercise.Andthatisbroadlywhatapublishedstudyhasfound.But

isitthefinalword,andshouldparentsbepanickedintopullingtheplugon

theirkids'devices?ResearchersinCanadaanalyzedlifestyledatafrom

questionnairestakenby4,520USchildrenaged8to11.Thechildrenalso

performedavarietyofstandardcognitiontests.JeremyWalshattheChildren's

HospitalofEasternOntarioResearchInstituteinOttawa,Canada,andhis

colleaguesevaluatedhowwellthechildrenmetvariousCanadiangovernment

guidelines.Thesesuggestlimitingscreentimeto2hoursaday,sleepingfor9to

11hoursanightandspendingatleastanhourbeingphysicallyactive.Morethan

athird—1,655children一mettheguidelineforlimitingscreentime,andtheir

averageperformanceinthecognitivetestswas4.5percenthigherthanthatof

the1,330childrenwhometnoneoftheguidelines.Thegainwasevenhigher,at

5.2percent,forthosemeetingboththescreen-timeandsleeprecommendations.

So,armedwiththeseresults,shouldparentsbeclampingdownonscreenuse?Walsh

himselfsaysthefindingsaretemporary."Alltheseresultsneedtobetemperedby

thefactthatitwasonlya_snapshot_ofchildrenatonepointintime,"hesays.

Anotherlimitationisthatthesurveydidn'trevealwhatthechildrenweredoing

ontheirscreens,whichcouldbeeducationalortrivial（无聊的）.“Thestudyis

limitedbytreatingallscreentimeasequal,”saysHeatherKirkorianatthe

UniversityofWisconsin-Madison.“Totrulyunderstandtheimpactofdigitalmedia

onchildren,researchersmustunderstandnotonlyhowmuch,butalsohow,what,

whereandwithwhomthey’rewatching.”Itisalsounclearwhetherthe

questionnairescanproduceaccuratedata."The8-to11-year-oldchildrenreported

theirownscreenandphysicalactivitybehavior,andmanymayhavestruggledtodo

thisaccurately,"saysKirstenCorderattheUniversityofCambridge."Datalike

thesearelikelytohavedifferenttypesoferrorwhichcanmakeithardertobe

certainabouttheresults.”Howeverreliabletheresults,researchersagreed

thatparentsshouldtrytosetsomelimitsonscreentime,especiallywhenbedtime

approaches."Screentimebeforebedisdoublyproblematicbecauseitkeepskidsup

later,andexposuretolightimpairs（损害）sleepquality,”saysEduardoEsteban

BustamanteattheUniversityofIllinoisinChicago.Walshhassimilarfeelings:

"Weshowthatexcessivescreentimebeforebedhasanegativeimpactonsleep,

whichisimportantfordevelopmentofcognitionandthebraingenerally"hesays.

WhydoesCorderdoubtthedatafromthequestionnaires?

Theymaynotberelevant.

Theymaynotbevalid.

A:

Theymaynotbeup-to-date.

B:

Theymaynotbecomplete.

C:

答D:案：B

29、【单选题】Itseemsintuitive（直觉的）thatchildren'sschoolworkwillget

worseiftheyspendtoomuchtimegazingattheirphonesinsteadofgettingtobed

orgettingsomeexercise.Andthatisbroadlywhatapublishedstudyhasfound.But

isitthefinalword,andshouldparentsbepanickedintopullingtheplugon

theirkids'devices?ResearchersinCanadaanalyzedlifestyledatafrom

questionnairestakenby4,520USchildrenaged8to11.Thechildrenalso

performedavarietyofstandardcognitiontests.JeremyWalshattheChildren's

HospitalofEasternOntarioResearchInstituteinOttawa,Canada,andhis

colleaguesevaluatedhowwellthechildrenmetvariousCanadiangovernment

guidelines.Thesesuggestlimitingscreentimeto2hoursaday,sleepingfor9to

11hoursanightandspendingatleastanhourbeingphysicallyactive.Morethan

athird—1,655children一mettheguidelineforlimitingscreentime,andtheir

averageperformanceinthecognitivetestswas4.5percenthigherthanthatof

the1,330childrenwhometnoneoftheguidelines.Thegainwasevenhigher,at

5.2percent,forthosemeetingboththescreen-timeandsleeprecommendations.

So,armedwiththeseresults,