首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
A．sell flesh vegetables ? ?B．sell as much as possible ? ?C．offer a variety of prepared meals ? ?D．tu...
查看本题答案
包含此试题的试卷
卫生类《填空集》真题及答案
点击查看
你可能感兴趣的试题
A．sellfleshvegetablesB．sellasmuchaspossibleC．offer
A．sellfreshvegetables?? B．sellasmuchaspossi
A．sellfreshvegetables?? B．sellasmuchaspossi
A．sellfleshvegetables??B．sellasmuchaspossible??C．o
Wearehavingayard_______butit’shard_____it.
sell, sell
sale, sell
sale, to sell
sell, sale
Vegetableseggsandfruits_________sellinthisshop.
Thestore________schoolthings________thestudents.
sell, to
buy, from
sells, to
buys, from
A．sellfleshvegetablesB．sellasmuchaspossibleC．offer
Thestore______schoolthings______thestudents.
sell；to
buy；from
sells；to
buys；from
A．sellfleshvegetablesB．sellasmuchaspossibleC．offer
Booksofthiskindwell.
sell
sells
are sold
is done
A．sellfleshvegetablesB．sellasmuchaspossibleC．offer
Wecan________books________thebookstore书店.
sell, to
buy, from
sell, from
buy, to
—Whataboutthebooks?—Booksofthiskindwell.
sell
sells
are sold
is sold
A．sellfleshvegetables??B．sellasmuchaspossible??C．o
A．sellfreshvegetables?? B．sellasmuchaspossi
A．sellfreshvegetables?? B．sellasmuchaspossi
9.Shenevergoeshomeuntilallhernewspapers________out
sell
will be sold
will sell
are sold
Wecan________somefood________thesupermarket.
sell, to
buy, from
sell, from
buy, to
A．sellfleshvegetables??B．sellasmuchaspossible??C．o
热门试题
更多
{{*HTML*}}3.WithGeneticGift2MonkeysAreViewingaMoreColorfulWorld??DaltonandSamaremalesquirrelmonkeysaboutafoottall.?46?DaltonandSamleadamoreprotectedlifeinthelaboratoryofJayandMaureenNeitzattheUniversityofWashingtonSeattle.RecentlytheNeitzesendowedthemwithanewgeneticgift:theabilitytoseetheworldwithfullcolorvision.??Malesquirrelmonkeyshaveonlytwoofthecolorpigments色素knownasopsins视蛋白unlikepeoplewhohavethree.TheNeitzeswithKatherineMancusoandothercolleaguesusedthetechniqueofgenetherapytointroducethegeneforthemissingredpigmentintotheconecellsofthemonkeys’retinas视网膜.?47???Itwassomewhatsurprisingthatthemonkeys’brainscouldtakeadvantageofathirdopsin.Theretinahoweverseemstoworkbyrecordingthedifferencebetweenthesignalsfromneighboringconesthecellsthatdetectcolor.?48???NewWorldmalemonkeyslikeDaltonandSamarechromaticallychallengedbecausetheirancestorssplitofffromOldWorldprimatesbeforefullcolorvisionevolved.Atthetimeofthesplitprimateshadonlytwovisualpigmentsonethatisparticularlysensitivetobluelightandanotherthatrespondsbesttoeithergreenorreddependingonwhichvariantofthegeneisinherited.?49?Thegenefortheredorgreenopsinwasduplicatedallowingindividualstoseeredandgreeninsteadofjustoneortheother.??NewWorldmonkeysneverdevelopedtheduplicatedgenebutmanyfemaleshavefullcolorvisionnevertheless.Thereasonisthatthered/greenopsingeneliesontheXchromosomesofemaleswhoinheritadifferentversionfromeachparenthavebothredandgreenopsinsalongwiththeblueopsinonanotherchromosome染色体.?50???A.ButmaleswithonlyoneXchromosomeinheritjustonevariantofthered/greenopsin-thegreeninthecaseofDaltonandSam.??B.SeveralmonthsafterthetherapyDaltonandSamwereabletoseeaworldinwhichredhues颜色werevisibleandorangesnolongerlookedlikelemonstheresearcherssayinthecurrentissueofNature.??C.Theirancestorslivedbyeatingfruitandinsectsintheforestcanopy树荫ofCentralandSouthAmerica.??D.AfterthesplitwhichbeganwiththeopeningoftheAtlanticbetweenAfricaandSouthAmericasome150millionyearsagotheOldWorldprimatesbenefitedfromageneticaccident.??E.SotheextraopsingenegiventoDaltonandSamwouldhavechangedthesignalfromaffectedconesandhencethemessageforwardedfromtheretinatothevisualcortexinthebrain.??F.Themonkeyexperimentwouldhelpresearchersunderstandthecircuitryusedbytheprimatebraintoanalyzecolor.
LookAfterYourVoice Oftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvetheproblembyactivatingthesalivainyourmouth.Firstgentlybitetheedgesofyourtonguewithyourteeth.Orpressyourentiretonguetothebottomofyourmouthandholditthereuntilthesalivaflow.Oryoucanimaginethatyouareslicingabigjuicylemonandsuckingthejuice. Beforeyoubeginyourtalkbekindtoyourvoice.Avoidmilkorcreamydrinksthatcoatyourthroat.Keepyourthroatwetbydrinkingalittlesweetenedwarmteaordilutedfruitjuice. Ifyousensethatyouarelosingyourvoicestoptalkingcompletely.Saveyourvoiceforyourspeech.Youmayfeelfoolishusingpapertowritenotesbutthebestthingyoucandoistorestyourvoice.IfyouneedtoseeadoctorperhapsyoucangetsomeadvicefromaprofessionalsingerInthemeantimedonoteventalkinalowvoice. WhataboutdrinkingalcoholtowetyourthroatIadviceyounottotouchalcoholbeforespeaking.Theproblemwithalcoholisthatonedrinkgivesyoualittleconfidence.Twodrinksgivesyouevenmoreconfidence.Finallyyouwillfeelall-powerfulandyouwillfeelyoucandoeverythingbutinfactyourbrainandyourmouthdonotworktogetherproperly.Savethealcoholuntilafteryoufinishspeaking. Perhapsyouwanttoaccepttheadvicebutyoumaywonderifyoucanchangethehabitsofalifetime.Ofcourseyoucan.Goethewholivedbeforeindoorskatingrinksorswimmingpoolssaid"welearntoskateinthesummerandswiminthewinter."Takethismessagetoheartandgiveyourselftimetodevelopyournewhabits.Ifyouarewillingtochangeyouwillsoonbeabletosaythatyouwillneverforgetthesetechniquesbecausetheybecameapartofyourbody. ThewritercitesGeothetoprovethatonecanchangeone’shabits.
OldercitizensintheUnitedStatesvotemoreregularlythanyoungeronesparticularlywhenlocalandstateissuesarebeingconsidered.
{{*HTML*}}A.howmuchsomeonewantsittosucceed??B.aformofdeepthought??C.aconditionsimilartosleep??D.haveincreasedself-controlandareducedsenseofpain??E.hypnosiscan’treduceorendapatient’spain??F.personscan’tbeforcedtodosomethingtheywouldnormallyopposeHypnosisiscommonlydescribedas______.
{{*HTML*}}MyLifeatRenda??IlearnedveryquicklythatbeingateachingassistantTAattheUniversityofIowawouldbedifferentfrombeingateacheratRenminUniversity.???46?Eyesstaringmouthsopenstudentsexaminedmybignosewhilewaswritingmynameontheblackboard.???AtIowawhenmyfirstclassesbeganhalfofmystudentsstillhadn’tarrived.Whenveryonefinallyfoundaseatringingcellphonesandloudyawns哈欠interruptedmyopeningremarks.ItisnotthatAmericanstudentsweredisrespectful.?47?TheywerehoweverfarmoreskepticalthanthestudentsIhadatRenda.ThetruthisIcouldn’tfaultthemfortheirskepticism.UndergraduatesatlargeUSuniversities—especiallyfreshmenandsophomores—oftenhaveseveralclassesasemesterhandledbyTAs.InsomecasestheTAsetsthecoursecontent.?48??Mosthavegoodintentionsbutveryfewareaseffectiveasprofessors.??Everyteacherhastoconfrontobstaclestolearning—nomatterwhattheculture.Studentswhotalkduringlecturesstudentswhocheatstudentswhoquestionthegradetheygetforapaperorprojectdealingwiththeseisallpartofthejob.?49?.??ThedifferenceIthinkisthatintheUSIhadtoswallowmoreofmypride.?50???IhadaresponsibilitytoteachthemofcoursebutIhadtodosoindirectly—asaguidewhohimselfhadafewthingstolearnfromthestudents.??A.BackatRendaIhadwalkedintomyfirstclassesfeelinglikeacelebrity.??B.Inmystudents’mindsIhadlittletoofferthemexceptperhapssomesamplequestionsforthemid-termexam.??C.InotherstheTAworksasagraderanddiscussionleader.??D.IencounteredtheseinChinaandIfacedthemintheUS.??E.Ontheotherhandbeingtaughtbyagraduatestudentisnotnecessarilybad.??F.Mostwerepoliteoratleastindifferent.
MentalRetardation智力迟钝 Mentalretardationisaconditioninwhichpeoplehavelowerthannormalintelligenceandareunabletofunctionatthelevelexpectedfortheirage.Peoplewithmentalretardationareusuallybornwithitoritdevelopsearlyintheirlife.Theymayalsohavesomedifficultywithdailylivingskillssuchaslearningtoreadandwriteandcaringforthemselves. Doctorsandotherprofessionalsdeterminethatapersonhasmentalretardationbasedontheirintelligenceandhowwelltheycandoeverydayactivities.IntelligenceistheabilitytolearnandunderstandLevelsofintelligencearemeasuredbyspecialtestscalledintelligencetests.Thescoreapersongetsononeofthesetestsgivesanumerical数字的measureofaperson’sintelligence.Thisiscalledanintelligencequotient智商orIQ. AnaveragescoreonanIQtestisabout90to110.apersonwithmentalretardationwillusuallyscorebelow75onanIQtest. TheIQtestalonedoesnotdeterminewhethersomeoneismentallyretardedapersonmustalsohavetroublewitheverydayactivitiessuchasgettingdressedeatingwashingorlearningbasicreadingwritingandarithmeticskills. Mentalretardationisnotadiseaseitself.Itcannotbecuredandit’snotcontagious传染的.Thisconditioncanbecausedbyseveralthingsthatinjurethebrainordon’tallowthebraintodevelopnormally.Manytimeswedon’tknowwhyapersonhasmentalretardation. Sometimesitmaybecausedbygenes.Genesarechemicalunitsfoundineverycell.Theycarrytheinstructionstellingcellswhattodo.Sometimeschildrenreceiveabnormalgenesfromtheirparents. adefectivegenemayalsodevelopspontaneously.Neitherparentwouldhavepassedonthegenebutthegenechangesbeforethebabydevelops; Someotherproblemsthatcancausementalretardationalsohappenbeforeachildisborn.Itisimportantforthebraintodevelopproperlyifachildistohavenormalintelligence."Planningapregnancyisthemostimportantdecisionmostofuswillmakeinourlifetime.Ahealthylifestyleandgoodmedicalcareshouldbeginbeforeawomanbecomespregnantandcontinuethroughoutthepregnancy"saysJodiRucquoiageneticcounselorfromConnecticut.Ifawomanabusesalcoholordrugsordoesn’teatwellthereisarisktothedevelopingbaby.Alsoaprematurebirthorproblemsduringchildbirthcansometimesharmthebaby’sdevelopingbrain.Whileprematurebabiesaregenerallyfinethereisagreaterchancethattheymayhavementalretardation. Insomecasesayoungchildcandevelopmentalretardationafterbeingsickwithaseriousinfectionorotherillnessoraftersufferingabadheadinjury. apersonofhighintelligencewillprobablyscore
RightandWrong Supposeyouworkinalibrarycheckingpeople’sbooksastheyleaveandafriendasksyoutolethimstealahard-to-findreferencebookthathewantstoown. Youmighthesitatetoagreeforvariousreasons.Youmightbeafraidthathe’llbecaughtandthatbothyouandhewillthengetintotrouble.Youmightwantthebooktostayinthelibrarysothatyoucanreadityourself. Butyoumayalsothinkthatwhatheproposesiswrong--thatheshouldn’tdoitandyoushouldn’thelphim.Ifyouthinkthatwhatdoesitmeanandwhatifanythingmakesittrue Tosayit’swrongisnotjusttosayit’sagainsttherules.Therecanbebadruleswhichstopwhatisn’twrong--likeacompanyruleagainstcriticizingtheboss.Arulecanalsobebadbecauseitrequiressomethingthatiswrong--likealawthatlooksdownuponblackpeopleinhotelsandrestaurants.Theideasofwrongandrightaredifferentfromtheideasofwhatisandisnotagainsttherules. Ifyouthinkitwouldbewrongtohelpyourfriendstealthebookthenyouwillfeeluncomfortableaboutdoingit:insomewayyouwon’twanttodoitevenifyouarealsounwillingtorefusetohelpafriend.WheredoesthedesirenottodoitcomefromWhatisitsmotivebehindit Therearevariouswaysinwhichsomethingcanbewrongbutinthiscaseifyouhadtoexplainityou’dprobablysaythatitwouldbeunfairtootherusersofthelibrary.Theymaybejustasinterestedinthebookasyourfriendisbutreaditinthereferenceroomwhereanyonewhoneedsitcanfredit. Thesethoughtshavetodealwitheffectsonothers--notnecessarilyeffectsontheirfeelingssincetheymayneverfindoutaboutitbutsomekindofdamage.Ingeneralthethoughtthatsomethingiswrongdependsonitsimpactnotjustonthepersonwhodoesitbutonotherpeople. Accordingtothepassagetheauthorwouldjudgewhatiswrong.
Thecityhasdecidedtodoawaywithalltheoldbuildingsinitscentre.
WhatIsAnthrax炭疽 There’sbeenalotoftalkaboutanthraxonthenewslately.Somepeopleareworriedthatanthraxmaybeconnectedtoterroristattacksorthatterroristsmayspreadthegermthat51thedisease.Federalofficialsandpoliceareinvestigatingthisandtaking52toprotectus. Inthemeantimeit’simportantnottopanicoveranthrax.ThechancesthatyouandyourFamily53atriskareverytiny.Oneofthewaysyoucanfeelbetteristolearnaboutanthrax.Whenyouknowwhatitisand54youcangetititdoesn’tseemquiteasscary. Sowhat55isanthrax Herearethefactsonanthrax AnthraxisabacterialinfectioncausedbyagermAlthoughit’smostcommoninfarm56likesheepCOWSpigshorsesandgoatsthere’saverysmallchancethatpeoplecangetittooAnthraxspores孢子aversionofthegerminaprotectiveshellthatcanliveinthesoilforyearscausethedisease.Peoplemaygetanthraxiftheyareexposedtoanthrax57Buthere’stheimportantpartjustbeingexposedtothesesporesdoesn’tmeanthatapersonwillget58. ForapersontogetsickhewouldhavetobreatheinthousandsofthesesporesallthewayIntohis59.Orhe’dhavetoeatmeatcontaminatedwithanthraxorhandle60thathasanthraxsporesThismaysoundscarybutevenwhenapersoncomes61contactwiththesporesit’sunlikelythathe’llgetsick.62thebacteriadonotgetintotheskindigestivetractorlungthediseasewon’tdevelop.Anthraxisnotspreadfrompersontopersonthewaytheflucanspreadfromfamilymemberto63memberorclassmatetoclassmateAnthraxcanalmostalwaysbesuccessfullytreatedwithantibiotics抗生素.Anthraxisveryrare.Untilrecentlyanthraxwasn’teventalkedaboutbecauseitwassorare-anditstill64!Evenwithalloftheanthraxcasesyouarehearingaboutrightnowaperson’schancesofgettinganthraxareaboutthe65astheywerebeforeyouheardaboutanthraxonthenewsveryverylow 51
RightandWrong Supposeyouworkinalibrarycheckingpeople’sbooksastheyleaveandafriendasksyoutolethimstealahard-to-findreferencebookthathewantstoown. Youmighthesitatetoagreeforvariousreasons.Youmightbeafraidthathe’llbecaughtandthatbothyouandhewillthengetintotrouble.Youmightwantthebooktostayinthelibrarysothatyoucanreadityourself. Butyoumayalsothinkthatwhatheproposesiswrong--thatheshouldn’tdoitandyoushouldn’thelphim.Ifyouthinkthatwhatdoesitmeanandwhatifanythingmakesittrue Tosayit’swrongisnotjusttosayit’sagainsttherules.Therecanbebadruleswhichstopwhatisn’twrong--likeacompanyruleagainstcriticizingtheboss.Arulecanalsobebadbecauseitrequiressomethingthatiswrong--likealawthatlooksdownuponblackpeopleinhotelsandrestaurants.Theideasofwrongandrightaredifferentfromtheideasofwhatisandisnotagainsttherules. Ifyouthinkitwouldbewrongtohelpyourfriendstealthebookthenyouwillfeeluncomfortableaboutdoingit:insomewayyouwon’twanttodoitevenifyouarealsounwillingtorefusetohelpafriend.WheredoesthedesirenottodoitcomefromWhatisitsmotivebehindit Therearevariouswaysinwhichsomethingcanbewrongbutinthiscaseifyouhadtoexplainityou’dprobablysaythatitwouldbeunfairtootherusersofthelibrary.Theymaybejustasinterestedinthebookasyourfriendisbutreaditinthereferenceroomwhereanyonewhoneedsitcanfredit. Thesethoughtshavetodealwitheffectsonothers--notnecessarilyeffectsontheirfeelingssincetheymayneverfindoutaboutitbutsomekindofdamage.Ingeneralthethoughtthatsomethingiswrongdependsonitsimpactnotjustonthepersonwhodoesitbutonotherpeople. Whydoestheauthorgivesomeexamplesofbadrules
LookAfterYourVoice Oftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvetheproblembyactivatingthesalivainyourmouth.Firstgentlybitetheedgesofyourtonguewithyourteeth.Orpressyourentiretonguetothebottomofyourmouthandholditthereuntilthesalivaflow.Oryoucanimaginethatyouareslicingabigjuicylemonandsuckingthejuice. Beforeyoubeginyourtalkbekindtoyourvoice.Avoidmilkorcreamydrinksthatcoatyourthroat.Keepyourthroatwetbydrinkingalittlesweetenedwarmteaordilutedfruitjuice. Ifyousensethatyouarelosingyourvoicestoptalkingcompletely.Saveyourvoiceforyourspeech.Youmayfeelfoolishusingpapertowritenotesbutthebestthingyoucandoistorestyourvoice.IfyouneedtoseeadoctorperhapsyoucangetsomeadvicefromaprofessionalsingerInthemeantimedonoteventalkinalowvoice. WhataboutdrinkingalcoholtowetyourthroatIadviceyounottotouchalcoholbeforespeaking.Theproblemwithalcoholisthatonedrinkgivesyoualittleconfidence.Twodrinksgivesyouevenmoreconfidence.Finallyyouwillfeelall-powerfulandyouwillfeelyoucandoeverythingbutinfactyourbrainandyourmouthdonotworktogetherproperly.Savethealcoholuntilafteryoufinishspeaking. Perhapsyouwanttoaccepttheadvicebutyoumaywonderifyoucanchangethehabitsofalifetime.Ofcourseyoucan.Goethewholivedbeforeindoorskatingrinksorswimmingpoolssaid"welearntoskateinthesummerandswiminthewinter."Takethismessagetoheartandgiveyourselftimetodevelopyournewhabits.Ifyouarewillingtochangeyouwillsoonbeabletosaythatyouwillneverforgetthesetechniquesbecausetheybecameapartofyourbody. Thewritersuggeststhatyougotoseeadoctorwhenyoufeelyouarelosingyourvoice.
{{*HTML*}}A.howmuchsomeonewantsittosucceed??B.aformofdeepthought??C.aconditionsimilartosleep??D.haveincreasedself-controlandareducedsenseofpain??E.hypnosiscan’treduceorendapatient’spain??F.personscan’tbeforcedtodosomethingtheywouldnormallyopposeHypnosisisnoteffectiveintreatingcigarettesmokersandpersonswhoeatordrinktoomuchisbecause______.
{{*HTML*}}MyLifeatRenda??IlearnedveryquicklythatbeingateachingassistantTAattheUniversityofIowawouldbedifferentfrombeingateacheratRenminUniversity.???46?Eyesstaringmouthsopenstudentsexaminedmybignosewhilewaswritingmynameontheblackboard.???AtIowawhenmyfirstclassesbeganhalfofmystudentsstillhadn’tarrived.Whenveryonefinallyfoundaseatringingcellphonesandloudyawns哈欠interruptedmyopeningremarks.ItisnotthatAmericanstudentsweredisrespectful.?47?TheywerehoweverfarmoreskepticalthanthestudentsIhadatRenda.ThetruthisIcouldn’tfaultthemfortheirskepticism.UndergraduatesatlargeUSuniversities—especiallyfreshmenandsophomores—oftenhaveseveralclassesasemesterhandledbyTAs.InsomecasestheTAsetsthecoursecontent.?48??Mosthavegoodintentionsbutveryfewareaseffectiveasprofessors.??Everyteacherhastoconfrontobstaclestolearning—nomatterwhattheculture.Studentswhotalkduringlecturesstudentswhocheatstudentswhoquestionthegradetheygetforapaperorprojectdealingwiththeseisallpartofthejob.?49?.??ThedifferenceIthinkisthatintheUSIhadtoswallowmoreofmypride.?50???IhadaresponsibilitytoteachthemofcoursebutIhadtodosoindirectly—asaguidewhohimselfhadafewthingstolearnfromthestudents.??A.BackatRendaIhadwalkedintomyfirstclassesfeelinglikeacelebrity.??B.Inmystudents’mindsIhadlittletoofferthemexceptperhapssomesamplequestionsforthemid-termexam.??C.InotherstheTAworksasagraderanddiscussionleader.??D.IencounteredtheseinChinaandIfacedthemintheUS.??E.Ontheotherhandbeingtaughtbyagraduatestudentisnotnecessarilybad.??F.Mostwerepoliteoratleastindifferent.
{{*HTML*}}3.WithGeneticGift2MonkeysAreViewingaMoreColorfulWorld??DaltonandSamaremalesquirrelmonkeysaboutafoottall.?46?DaltonandSamleadamoreprotectedlifeinthelaboratoryofJayandMaureenNeitzattheUniversityofWashingtonSeattle.RecentlytheNeitzesendowedthemwithanewgeneticgift:theabilitytoseetheworldwithfullcolorvision.??Malesquirrelmonkeyshaveonlytwoofthecolorpigments色素knownasopsins视蛋白unlikepeoplewhohavethree.TheNeitzeswithKatherineMancusoandothercolleaguesusedthetechniqueofgenetherapytointroducethegeneforthemissingredpigmentintotheconecellsofthemonkeys’retinas视网膜.?47???Itwassomewhatsurprisingthatthemonkeys’brainscouldtakeadvantageofathirdopsin.Theretinahoweverseemstoworkbyrecordingthedifferencebetweenthesignalsfromneighboringconesthecellsthatdetectcolor.?48???NewWorldmalemonkeyslikeDaltonandSamarechromaticallychallengedbecausetheirancestorssplitofffromOldWorldprimatesbeforefullcolorvisionevolved.Atthetimeofthesplitprimateshadonlytwovisualpigmentsonethatisparticularlysensitivetobluelightandanotherthatrespondsbesttoeithergreenorreddependingonwhichvariantofthegeneisinherited.?49?Thegenefortheredorgreenopsinwasduplicatedallowingindividualstoseeredandgreeninsteadofjustoneortheother.??NewWorldmonkeysneverdevelopedtheduplicatedgenebutmanyfemaleshavefullcolorvisionnevertheless.Thereasonisthatthered/greenopsingeneliesontheXchromosomesofemaleswhoinheritadifferentversionfromeachparenthavebothredandgreenopsinsalongwiththeblueopsinonanotherchromosome染色体.?50???A.ButmaleswithonlyoneXchromosomeinheritjustonevariantofthered/greenopsin-thegreeninthecaseofDaltonandSam.??B.SeveralmonthsafterthetherapyDaltonandSamwereabletoseeaworldinwhichredhues颜色werevisibleandorangesnolongerlookedlikelemonstheresearcherssayinthecurrentissueofNature.??C.Theirancestorslivedbyeatingfruitandinsectsintheforestcanopy树荫ofCentralandSouthAmerica.??D.AfterthesplitwhichbeganwiththeopeningoftheAtlanticbetweenAfricaandSouthAmericasome150millionyearsagotheOldWorldprimatesbenefitedfromageneticaccident.??E.SotheextraopsingenegiventoDaltonandSamwouldhavechangedthesignalfromaffectedconesandhencethemessageforwardedfromtheretinatothevisualcortexinthebrain.??F.Themonkeyexperimentwouldhelpresearchersunderstandthecircuitryusedbytheprimatebraintoanalyzecolor.
RightandWrong Supposeyouworkinalibrarycheckingpeople’sbooksastheyleaveandafriendasksyoutolethimstealahard-to-findreferencebookthathewantstoown. Youmighthesitatetoagreeforvariousreasons.Youmightbeafraidthathe’llbecaughtandthatbothyouandhewillthengetintotrouble.Youmightwantthebooktostayinthelibrarysothatyoucanreadityourself. Butyoumayalsothinkthatwhatheproposesiswrong--thatheshouldn’tdoitandyoushouldn’thelphim.Ifyouthinkthatwhatdoesitmeanandwhatifanythingmakesittrue Tosayit’swrongisnotjusttosayit’sagainsttherules.Therecanbebadruleswhichstopwhatisn’twrong--likeacompanyruleagainstcriticizingtheboss.Arulecanalsobebadbecauseitrequiressomethingthatiswrong--likealawthatlooksdownuponblackpeopleinhotelsandrestaurants.Theideasofwrongandrightaredifferentfromtheideasofwhatisandisnotagainsttherules. Ifyouthinkitwouldbewrongtohelpyourfriendstealthebookthenyouwillfeeluncomfortableaboutdoingit:insomewayyouwon’twanttodoitevenifyouarealsounwillingtorefusetohelpafriend.WheredoesthedesirenottodoitcomefromWhatisitsmotivebehindit Therearevariouswaysinwhichsomethingcanbewrongbutinthiscaseifyouhadtoexplainityou’dprobablysaythatitwouldbeunfairtootherusersofthelibrary.Theymaybejustasinterestedinthebookasyourfriendisbutreaditinthereferenceroomwhereanyonewhoneedsitcanfredit. Thesethoughtshavetodealwitheffectsonothers--notnecessarilyeffectsontheirfeelingssincetheymayneverfindoutaboutitbutsomekindofdamage.Ingeneralthethoughtthatsomethingiswrongdependsonitsimpactnotjustonthepersonwhodoesitbutonotherpeople. ThefollowingmaybethereasonswhythelibrariandoesnotwanttohelphisfriendEXCEPTthat.
HappyTherapy诊疗 NormanCousinswasabusinessmanfromtheUnitedStateswhooftentraveledaroundtheworldonbusiness.Heenjoyedhisworkandtraveling. ThenafterreturningtotheUnitedStatesfromabusyandtiringtriptoRussiaMr.Cousinsgotsick.Becausehehadpushedhisbodytothelimitofitsstrengthonthetripachemicalchangebegantotakeplaceinsidehim.Thematerialbetweenhisbonesbecameweak. Inlessthanoneweekafterhisreturnhecouldnotstand.Everymovethathemadewaspainful.Hewasnotabletosleepatnight. ThedoctorstoldMr.Cousinsthattheydidnotknowhowtocurehisproblemsandhemightnevergetovertheillness.Mr.Cousinshoweverrefusedtogiveuphope. Mr.Cousinsthoughtthatunhappythoughtswerecausingbadchemicalchangesinhisbody.Hedidnotwanttotakemedicinetocurehimself.Insteadhefeltthathappythoughtsorlaughtermightcurehisillness. Hebegantoexperimentonhimselfwhilestillinthehospitalbywatchingfunnyshowsontelevision.Mr.Cousinsquicklyfoundthattenminutesofreallaughterduringthedaygavehimtwohoursofpain-freesleepatnight. DecidingthatthedoctorscouldnothelphimMr.Cousinsleftthehospitalandcheckedintoahotelroomwherehecouldcontinuehisexperimentswithlaughter.ForeightdaysMr.Cousinsrestedinthehotelroomwatchingfunnyshowsontelevisionreadingfunnybooksandsleepingwheneverhefelttired.WithinthreeweekshefeltwellenoughtotakeavacationtoPuertoRicowherehebeganrunningonthebeachforexercise. Mr.Cousinsattributedthebadchemicalchangesinhisbodyto
Thesecretaryisexpectedtoexploreideasforpost-warreconstructionofthearea.
{{*HTML*}}A.UrgentNeedforBothDonorsandFunds??B.ShortageofDonors??C.DesperateLeukaemiaPatients??D.SeriousnessoftheCurrentSituation??E.ShortageofFunds??F.ComparisonBetweenMainlandandHongKongandTaiwanParagraph3______.
LookAfterYourVoice Oftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvetheproblembyactivatingthesalivainyourmouth.Firstgentlybitetheedgesofyourtonguewithyourteeth.Orpressyourentiretonguetothebottomofyourmouthandholditthereuntilthesalivaflow.Oryoucanimaginethatyouareslicingabigjuicylemonandsuckingthejuice. Beforeyoubeginyourtalkbekindtoyourvoice.Avoidmilkorcreamydrinksthatcoatyourthroat.Keepyourthroatwetbydrinkingalittlesweetenedwarmteaordilutedfruitjuice. Ifyousensethatyouarelosingyourvoicestoptalkingcompletely.Saveyourvoiceforyourspeech.Youmayfeelfoolishusingpapertowritenotesbutthebestthingyoucandoistorestyourvoice.IfyouneedtoseeadoctorperhapsyoucangetsomeadvicefromaprofessionalsingerInthemeantimedonoteventalkinalowvoice. WhataboutdrinkingalcoholtowetyourthroatIadviceyounottotouchalcoholbeforespeaking.Theproblemwithalcoholisthatonedrinkgivesyoualittleconfidence.Twodrinksgivesyouevenmoreconfidence.Finallyyouwillfeelall-powerfulandyouwillfeelyoucandoeverythingbutinfactyourbrainandyourmouthdonotworktogetherproperly.Savethealcoholuntilafteryoufinishspeaking. Perhapsyouwanttoaccepttheadvicebutyoumaywonderifyoucanchangethehabitsofalifetime.Ofcourseyoucan.Goethewholivedbeforeindoorskatingrinksorswimmingpoolssaid"welearntoskateinthesummerandswiminthewinter."Takethismessagetoheartandgiveyourselftimetodevelopyournewhabits.Ifyouarewillingtochangeyouwillsoonbeabletosaythatyouwillneverforgetthesetechniquesbecausetheybecameapartofyourbody. Duetotheeffectofalcoholyourthoughtandyourmouthwillnotcoordinateproperly.
Myunclevolunteershisservicestoworthycauses.
Therearevariouswaystosolvetheproblem.
Thegreatchangeofthecityastonishedallthevisitors.
Theunionrepresentativeputacrossherargumentveryeffectively.
HappyTherapy诊疗 NormanCousinswasabusinessmanfromtheUnitedStateswhooftentraveledaroundtheworldonbusiness.Heenjoyedhisworkandtraveling. ThenafterreturningtotheUnitedStatesfromabusyandtiringtriptoRussiaMr.Cousinsgotsick.Becausehehadpushedhisbodytothelimitofitsstrengthonthetripachemicalchangebegantotakeplaceinsidehim.Thematerialbetweenhisbonesbecameweak. Inlessthanoneweekafterhisreturnhecouldnotstand.Everymovethathemadewaspainful.Hewasnotabletosleepatnight. ThedoctorstoldMr.Cousinsthattheydidnotknowhowtocurehisproblemsandhemightnevergetovertheillness.Mr.Cousinshoweverrefusedtogiveuphope. Mr.Cousinsthoughtthatunhappythoughtswerecausingbadchemicalchangesinhisbody.Hedidnotwanttotakemedicinetocurehimself.Insteadhefeltthathappythoughtsorlaughtermightcurehisillness. Hebegantoexperimentonhimselfwhilestillinthehospitalbywatchingfunnyshowsontelevision.Mr.Cousinsquicklyfoundthattenminutesofreallaughterduringthedaygavehimtwohoursofpain-freesleepatnight. DecidingthatthedoctorscouldnothelphimMr.Cousinsleftthehospitalandcheckedintoahotelroomwherehecouldcontinuehisexperimentswithlaughter.ForeightdaysMr.Cousinsrestedinthehotelroomwatchingfunnyshowsontelevisionreadingfunnybooksandsleepingwheneverhefelttired.WithinthreeweekshefeltwellenoughtotakeavacationtoPuertoRicowherehebeganrunningonthebeachforexercise. Mr.Cousinscuredhisownillness
WhatIsAnthrax炭疽 There’sbeenalotoftalkaboutanthraxonthenewslately.Somepeopleareworriedthatanthraxmaybeconnectedtoterroristattacksorthatterroristsmayspreadthegermthat51thedisease.Federalofficialsandpoliceareinvestigatingthisandtaking52toprotectus. Inthemeantimeit’simportantnottopanicoveranthrax.ThechancesthatyouandyourFamily53atriskareverytiny.Oneofthewaysyoucanfeelbetteristolearnaboutanthrax.Whenyouknowwhatitisand54youcangetititdoesn’tseemquiteasscary. Sowhat55isanthrax Herearethefactsonanthrax AnthraxisabacterialinfectioncausedbyagermAlthoughit’smostcommoninfarm56likesheepCOWSpigshorsesandgoatsthere’saverysmallchancethatpeoplecangetittooAnthraxspores孢子aversionofthegerminaprotectiveshellthatcanliveinthesoilforyearscausethedisease.Peoplemaygetanthraxiftheyareexposedtoanthrax57Buthere’stheimportantpartjustbeingexposedtothesesporesdoesn’tmeanthatapersonwillget58. ForapersontogetsickhewouldhavetobreatheinthousandsofthesesporesallthewayIntohis59.Orhe’dhavetoeatmeatcontaminatedwithanthraxorhandle60thathasanthraxsporesThismaysoundscarybutevenwhenapersoncomes61contactwiththesporesit’sunlikelythathe’llgetsick.62thebacteriadonotgetintotheskindigestivetractorlungthediseasewon’tdevelop.Anthraxisnotspreadfrompersontopersonthewaytheflucanspreadfromfamilymemberto63memberorclassmatetoclassmateAnthraxcanalmostalwaysbesuccessfullytreatedwithantibiotics抗生素.Anthraxisveryrare.Untilrecentlyanthraxwasn’teventalkedaboutbecauseitwassorare-anditstill64!Evenwithalloftheanthraxcasesyouarehearingaboutrightnowaperson’schancesofgettinganthraxareaboutthe65astheywerebeforeyouheardaboutanthraxonthenewsveryverylow 53
LookAfterYourVoice Oftenspeakersatameetingexperiencedrymouthsandaskforaglassofwater.Youcansolvetheproblembyactivatingthesalivainyourmouth.Firstgentlybitetheedgesofyourtonguewithyourteeth.Orpressyourentiretonguetothebottomofyourmouthandholditthereuntilthesalivaflow.Oryoucanimaginethatyouareslicingabigjuicylemonandsuckingthejuice. Beforeyoubeginyourtalkbekindtoyourvoice.Avoidmilkorcreamydrinksthatcoatyourthroat.Keepyourthroatwetbydrinkingalittlesweetenedwarmteaordilutedfruitjuice. Ifyousensethatyouarelosingyourvoicestoptalkingcompletely.Saveyourvoiceforyourspeech.Youmayfeelfoolishusingpapertowritenotesbutthebestthingyoucandoistorestyourvoice.IfyouneedtoseeadoctorperhapsyoucangetsomeadvicefromaprofessionalsingerInthemeantimedonoteventalkinalowvoice. WhataboutdrinkingalcoholtowetyourthroatIadviceyounottotouchalcoholbeforespeaking.Theproblemwithalcoholisthatonedrinkgivesyoualittleconfidence.Twodrinksgivesyouevenmoreconfidence.Finallyyouwillfeelall-powerfulandyouwillfeelyoucandoeverythingbutinfactyourbrainandyourmouthdonotworktogetherproperly.Savethealcoholuntilafteryoufinishspeaking. Perhapsyouwanttoaccepttheadvicebutyoumaywonderifyoucanchangethehabitsofalifetime.Ofcourseyoucan.Goethewholivedbeforeindoorskatingrinksorswimmingpoolssaid"welearntoskateinthesummerandswiminthewinter."Takethismessagetoheartandgiveyourselftimetodevelopyournewhabits.Ifyouarewillingtochangeyouwillsoonbeabletosaythatyouwillneverforgetthesetechniquesbecausetheybecameapartofyourbody. Tosolvetheproblemofdrymouthsoneisadvisedtotakecoolmilk.
HappyTherapy诊疗 NormanCousinswasabusinessmanfromtheUnitedStateswhooftentraveledaroundtheworldonbusiness.Heenjoyedhisworkandtraveling. ThenafterreturningtotheUnitedStatesfromabusyandtiringtriptoRussiaMr.Cousinsgotsick.Becausehehadpushedhisbodytothelimitofitsstrengthonthetripachemicalchangebegantotakeplaceinsidehim.Thematerialbetweenhisbonesbecameweak. Inlessthanoneweekafterhisreturnhecouldnotstand.Everymovethathemadewaspainful.Hewasnotabletosleepatnight. ThedoctorstoldMr.Cousinsthattheydidnotknowhowtocurehisproblemsandhemightnevergetovertheillness.Mr.Cousinshoweverrefusedtogiveuphope. Mr.Cousinsthoughtthatunhappythoughtswerecausingbadchemicalchangesinhisbody.Hedidnotwanttotakemedicinetocurehimself.Insteadhefeltthathappythoughtsorlaughtermightcurehisillness. Hebegantoexperimentonhimselfwhilestillinthehospitalbywatchingfunnyshowsontelevision.Mr.Cousinsquicklyfoundthattenminutesofreallaughterduringthedaygavehimtwohoursofpain-freesleepatnight. DecidingthatthedoctorscouldnothelphimMr.Cousinsleftthehospitalandcheckedintoahotelroomwherehecouldcontinuehisexperimentswithlaughter.ForeightdaysMr.Cousinsrestedinthehotelroomwatchingfunnyshowsontelevisionreadingfunnybooksandsleepingwheneverhefelttired.WithinthreeweekshefeltwellenoughtotakeavacationtoPuertoRicowherehebeganrunningonthebeachforexercise. Mr.Cousinsgotsickafterreturningfrom
{{*HTML*}}3.WithGeneticGift2MonkeysAreViewingaMoreColorfulWorld??DaltonandSamaremalesquirrelmonkeysaboutafoottall.?46?DaltonandSamleadamoreprotectedlifeinthelaboratoryofJayandMaureenNeitzattheUniversityofWashingtonSeattle.RecentlytheNeitzesendowedthemwithanewgeneticgift:theabilitytoseetheworldwithfullcolorvision.??Malesquirrelmonkeyshaveonlytwoofthecolorpigments色素knownasopsins视蛋白unlikepeoplewhohavethree.TheNeitzeswithKatherineMancusoandothercolleaguesusedthetechniqueofgenetherapytointroducethegeneforthemissingredpigmentintotheconecellsofthemonkeys’retinas视网膜.?47???Itwassomewhatsurprisingthatthemonkeys’brainscouldtakeadvantageofathirdopsin.Theretinahoweverseemstoworkbyrecordingthedifferencebetweenthesignalsfromneighboringconesthecellsthatdetectcolor.?48???NewWorldmalemonkeyslikeDaltonandSamarechromaticallychallengedbecausetheirancestorssplitofffromOldWorldprimatesbeforefullcolorvisionevolved.Atthetimeofthesplitprimateshadonlytwovisualpigmentsonethatisparticularlysensitivetobluelightandanotherthatrespondsbesttoeithergreenorreddependingonwhichvariantofthegeneisinherited.?49?Thegenefortheredorgreenopsinwasduplicatedallowingindividualstoseeredandgreeninsteadofjustoneortheother.??NewWorldmonkeysneverdevelopedtheduplicatedgenebutmanyfemaleshavefullcolorvisionnevertheless.Thereasonisthatthered/greenopsingeneliesontheXchromosomesofemaleswhoinheritadifferentversionfromeachparenthavebothredandgreenopsinsalongwiththeblueopsinonanotherchromosome染色体.?50???A.ButmaleswithonlyoneXchromosomeinheritjustonevariantofthered/greenopsin-thegreeninthecaseofDaltonandSam.??B.SeveralmonthsafterthetherapyDaltonandSamwereabletoseeaworldinwhichredhues颜色werevisibleandorangesnolongerlookedlikelemonstheresearcherssayinthecurrentissueofNature.??C.Theirancestorslivedbyeatingfruitandinsectsintheforestcanopy树荫ofCentralandSouthAmerica.??D.AfterthesplitwhichbeganwiththeopeningoftheAtlanticbetweenAfricaandSouthAmericasome150millionyearsagotheOldWorldprimatesbenefitedfromageneticaccident.??E.SotheextraopsingenegiventoDaltonandSamwouldhavechangedthesignalfromaffectedconesandhencethemessageforwardedfromtheretinatothevisualcortexinthebrain.??F.Themonkeyexperimentwouldhelpresearchersunderstandthecircuitryusedbytheprimatebraintoanalyzecolor.
{{*HTML*}}A.UrgentNeedforBothDonorsandFunds??B.ShortageofDonors??C.DesperateLeukaemiaPatients??D.SeriousnessoftheCurrentSituation??E.ShortageofFunds??F.ComparisonBetweenMainlandandHongKongandTaiwanParagraph5______.
MentalRetardation智力迟钝 Mentalretardationisaconditioninwhichpeoplehavelowerthannormalintelligenceandareunabletofunctionatthelevelexpectedfortheirage.Peoplewithmentalretardationareusuallybornwithitoritdevelopsearlyintheirlife.Theymayalsohavesomedifficultywithdailylivingskillssuchaslearningtoreadandwriteandcaringforthemselves. Doctorsandotherprofessionalsdeterminethatapersonhasmentalretardationbasedontheirintelligenceandhowwelltheycandoeverydayactivities.IntelligenceistheabilitytolearnandunderstandLevelsofintelligencearemeasuredbyspecialtestscalledintelligencetests.Thescoreapersongetsononeofthesetestsgivesanumerical数字的measureofaperson’sintelligence.Thisiscalledanintelligencequotient智商orIQ. AnaveragescoreonanIQtestisabout90to110.apersonwithmentalretardationwillusuallyscorebelow75onanIQtest. TheIQtestalonedoesnotdeterminewhethersomeoneismentallyretardedapersonmustalsohavetroublewitheverydayactivitiessuchasgettingdressedeatingwashingorlearningbasicreadingwritingandarithmeticskills. Mentalretardationisnotadiseaseitself.Itcannotbecuredandit’snotcontagious传染的.Thisconditioncanbecausedbyseveralthingsthatinjurethebrainordon’tallowthebraintodevelopnormally.Manytimeswedon’tknowwhyapersonhasmentalretardation. Sometimesitmaybecausedbygenes.Genesarechemicalunitsfoundineverycell.Theycarrytheinstructionstellingcellswhattodo.Sometimeschildrenreceiveabnormalgenesfromtheirparents. adefectivegenemayalsodevelopspontaneously.Neitherparentwouldhavepassedonthegenebutthegenechangesbeforethebabydevelops; Someotherproblemsthatcancausementalretardationalsohappenbeforeachildisborn.Itisimportantforthebraintodevelopproperlyifachildistohavenormalintelligence."Planningapregnancyisthemostimportantdecisionmostofuswillmakeinourlifetime.Ahealthylifestyleandgoodmedicalcareshouldbeginbeforeawomanbecomespregnantandcontinuethroughoutthepregnancy"saysJodiRucquoiageneticcounselorfromConnecticut.Ifawomanabusesalcoholordrugsordoesn’teatwellthereisarisktothedevelopingbaby.Alsoaprematurebirthorproblemsduringchildbirthcansometimesharmthebaby’sdevelopingbrain.Whileprematurebabiesaregenerallyfinethereisagreaterchancethattheymayhavementalretardation. Insomecasesayoungchildcandevelopmentalretardationafterbeingsickwithaseriousinfectionorotherillnessoraftersufferingabadheadinjury. WhichisNOTapossiblecauseofmentalretardation
热门题库
更多
语文
中石油职称英语
理工类
卫生类
综合类
国际货运代理师
报关水平测试
报检员
物流员(四级)
助理物流师(三级)
物流师(二级)
高级物流师(一级)
物流案例分析
单证员基础理论与知识
单证员缮制与操作
国际货运代理理论与实务
湘公网安备 43130202000226号