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{{*HTML*}}{{B}}第三篇{{/B}} ?Whydoescreamgobadfasterthanbutter? Someresearchersthinktheyhavetheanswer?anditcomesdowntothe structureofthefoodnotitschemicalcomposition--afindingthatcouldhelp ridsomeprocessedfoodsofchemicalpreservatives.??Creamand buttercontainprettymuchthesamesubstancessowhycreamshouldsourmuch fasterhasbeenamystery.Bothareemulsions--tinyglobules小球体ofoneliquid evenlydistributedthroughoutanother.Thedifferenceliesinwhat’sinthe globulesandwhat’sinthesurroundingliquidsaysBrocklehurstwholedthe investigation.??Increamfattyglobulesdriftaboutinaseaof water.Inbutterglobulesofawaterysolutionarelockedawayinaseaoffat. Thebacteriawhichmakethefoodgobadprefertoliveinthewateryregionsof themixture.Thismeansthatincreamthebacteriaarefreetogrowthroughout themixturehesays.??Whenthesituationisreversedthe bacteriaarelockedawayincompartments隔仓室burieddeepintheseaoffat. Trappedinthiswayindividualcoloniescannotspreadandrapidlyrunout nutrients养料.Theyalsoslowlypoisonthemselveswiththeirwasteproducts.In butteryougetaself--limitingsystemwhichstopsthebacteriagrowingsays Broeklehurst.??Theresearchersarealreadyworkingwithfood companieskeentoseeiftheirproductscanbemaderesistanttobacterial attackthroughalterationstothefood’sstructure.Brocklehurstbelievesit willbepossibletomaketheemulsionsusedinsaladcreamforinstancemore likethatinbutter.Thekeywillbetodothiswhilekeepingthesaladcream liquidandnotturninginintoasolidlump.AccordingtoBrocklehurstwecankeepcreamfreshby______.
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{{*HTML*}}? ?阅读下面的短文文章中有5处空白文章后有6组文字请根据文章的内容选择5组文字将其分别放回文章原有位置以恢复文章原貌 ??Sleepispartofaperson’sdailyactivitycycle.Thereare severaldifferentstagesofsleepandtheytoooccurincycles.Ifyouarean averagesleeper{{U}}?46?{{/U}}.Whenyoufirstdriftoffinto slumberyoureyeswillrollaboutabityourtemperaturewilldropslightly yourmuscleswillrelaxandyourbreathingwillslowandbecomequiteregular. Yourbrainwavesslowdownabittoowiththealpharhythmofratherfastwaves predominatingforthefirstfewminutes.{{U}}?47?{{/U}}.Forthenext halfhourorsoasyourelaxmoreandmoreyouwilldriftdownthroughstage2 andstage3sleep.Theloweryourstageofsleep{{U}}?48?{{/U}}. Thenabout40to60minutesafteryouloseconsciousnessyouwillhavereached thedeepestsleepofall.Yourbrainwaveswillshowthelargeslowwavesthat areknownasthedeltarhythm.Thisisstage4sleep.??Youdonot remainatthisdeepfourthstageallnightlongbutinsteadabout80minutes afteryoufallintoslumber{{U}}?49?{{/U}}.Thedeltarhythmwill disappeartobereplacedbytheactivitypatternofbrainwaves.Youreyeswill begintodartaroundunderyourclosedeyelidsasifyouwerelookingat somethingoccurringinfrontofyou.Thisperiodofrapideyemovementlastsfor some8to15minutesandiscalledREMsleep.{{U}}?50?{{/U}}.Provided thatyoudonotwakeupduringthefirstREMsleepperiodyourbodywillsoon relaxagainyourbreathingwillgrowslowandregularoncemoreandyouwill slipgentlybackfromstage1tostage4sleep--onlytoriseonceagaintothe surfaceofnearconsciousnesssome80minuteslater.??A.your brainactivitylevelwillincreaseagainslightly.??B.Theslower yourbrainwaveswillbe.??C.Yourbrainisstillworkingwhen youaresleeping.??D.Yoursleepcycleisasfollows.? ?E.ItisduringREMsleepthatmostdreamsseemtooccur.? ?F.Thisiscalledstageisleep.
{{*HTML*}}{{B}}第二篇{{/B}} ??Theseriouslydepressedpersonsees himselfinaverynegativeway.Heissurethatheisaloneandhopeless.He oftenblameshimselfforordinaryfaultsandshortcomingswhichheexaggerates. Heisverydiscouragedabouthimselftheworldandhisfuture.Hebecomesless interestedinwhatisgoingonaroundhimanddoesn’tgetsatisfactionfrom thingsheusedtoenjoy.Fatigueandearlymorningsleeplessnessarequite common.Thedepressedpersonmaywanttosleepmorethanusual.Hemaylosehis appetiteandloseweightoreatmorethannormallyandgainweight.Another particularsignseeninwomeniscryingspells.Manyofthesespellsareshort andcommon.??Somedepressiveillnessmaynotshowtheusualsigns ofmoodysadnessandhopelessness.?Inthesecasesthepotential depressionmaymaskitselfasphysicaldiscomfort.Itmaybeacauseof alcoholismoritmaycauseaddictiontoadrug.Chronicfatigueandboredomas wellascontinualfailuremaybeunrecognizedformsofdepression.Thereis evenevidencethattheoverlyactivechildmaybemakingupforanpotential depression.??Depressivessharethefeelingthattheyhavelost somethingveryimportanttothemthoughoftenthisisnotreallythecase.From afeelingoflossthedepressedpersonprogressestofalseideasthatheisa loserandwillalwaysbealoserthathemustbeworthlessandperhapsnotfit tolive.Hemayevenattemptssuicide.Somanyverydepressedpeopleattempt suicidethatdepressiveillnessmaybeconsideredtheonlyfatalmentalillness. Notallthosesufferingfromdepressiveillnessdoattemptsuicide.Norareall thosewhoattemptsuicidenecessarilysufferingfromillness.Butthe relationshipisstriking.Itisestimatedthatasmanyas75percentofthose whoattemptsuicideareseriouslydepressedOtherstudiesshowthattheperson hospitalizedfordepressionisabout36timesmorelikelytocommitsuicidethan isthenon-depressedperson.Thegreatestriskoccursduringorimmediately afterhospitalization.Afterage40thepossibilityofsuicideincreasesin verydepressedpersons.Almosttwiceasmanywomenasmensufferfromdepressive illness.Almosttwiceasmanywomenasmenattemptsuicidebutthreetimesmore menthanwomensucceedDepressionsisatragicconditionwhichoftenleadsto brokenhomesruinedfriendshipsandcareersanddisrupted lives.Whichofthefollowingisnottrue?
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{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Intheolddayschildrenwerefamiliar withbirthanddeathaspartoflife.Thisisperhapsthefirstgenerationof Americanyoungster年轻人whohaveneverbeenclosebyduringthebirthofababy andhaveneverexperiencedthedeathofafamilymember.? ?Nowadayswhenpeoplegrowoldweoftensendthemtonursinghomes.When theygetsickwetransferthemtoahospitalwherechildrenareforbiddento visitterminallyillpatients--evenwhenthosepatientsaretheirparents.This deprives剥夺thedyingpatientofsignificantfamilymembersduringthelastfew daysofhislifeanditdeprivesthechildrenofanexperienceofdeathwhich isanimportantlearningexperience.??SomeofmycolleaguesandI onceinterviewedandfollowedapproximately500terminallyillpatientsinorder tofindoutwhattheycouldteachusandhowwecouldbeofmorebenefitnot justtothembuttothemembersoftheirfamiliesaswell.Weweremost impressedbythefactthateventhosepatientswhowerenottoldoftheir seriousillnesswerequiteawareofitspotentialoutcome.??Itis importantforfamilymembersanddoctorsandnursestounderstandthese patients’?communicationsinordertotrulyunderstandtheirneedsfears andfantasies幻想.Mostofourpatientswelcomedanotherhumanbeingwithwhom theycouldtalkopenlyhonestlyandfranklyabouttheirtrouble.Manyofthem sharedwithustheirtremendousneedtobeinformedtobekeptup-to-dateon theirmedicalconditionandtobetoldwhentheendwasnear.Wefoundoutthat patientswhohadbeendealtwithopenlyandfranklywerebetterabletocope withtheapproachofdeathandfinallytoreachatruestageofacceptanceprior todeath.Fivehundredcriticallyillpatientswereinvestigatedwiththemainpurposeof______.
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Aftermakingobservationsforaweekintheplanttheindustrialengineermadeanumberofvery{{U}}constructive{{/U}}suggestionsinanoralreporttothemanager.
{{*HTML*}}? ?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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Mindandbodyaretwopartsofacomplexorganismcontrolledbythe nervoussystemwhichactsoninformationreceivedfromthesenses.Thewaya personperceivesandreactsdependsonhismoodhisstateofhealthhisdiet hisbodytemperatureandhislevelofconsciousness.??2.Thereis considerableevidencethateverythoughtoremotionhassomerelatedphysical effectandthateverychangewithinthenervoussystemshouldhavesome psychologicaleffect.Althoughtheprecisenatureofthesecorrelationsisnot alwaysknowntheviewthatbodyandmindareconstantlyinteractinginsomeway isnowacceptedbymostpsychologists.??3.Therelationship betweenmindandbodyisparticularlyapparentinemotionalstatesespecially thoseoffearandanger.Whenapersonisinthegripofapowerfulemotionhis bodyundergoeschangesjustasitdoeswhenheisasleepillorunderthe influenceofdrugsoralcohol.Mostpeoplearefamiliarwithsuchsensationsas adrymouthwhentheyarenervousoraracingheartwhentheyareafraidor excited.Suchphysicalchangescanbemeasuredforinstancebyrecordingpulse rateandbreathingorbymeasuringthedilationofthepupilsofthe eyes.??4.aparticularlysensitivemeasureofbodilychange duringperiodsofemotionisthegalvanicskinresponseGSR.Thisisusedin theinstrumentknownastheliedetector.TheGSRdependsonthefactthatsome mentalactivityproducesbodilychangessuchassweatingwhichaffectthe skin’sresistancetoelectricity.TomeasureGSRelectrodesareplacedonthe palmandonthebackofthehandandaweakcurrentispassedbetweenthe electrodes.Changesinthecurrentarerecordedinanamplifiedformoftenby meansofanautomaticallycontrolledpenonmovingpaper.Otherrecordingsfor instanceofpulsebloodpressureandbreathingcanbemadesimultaneouslyby aninstrumentcalledapolygraph.??5.Thegalvanicskinresponse methodhasprovedaveryefficientindicatorofgeneralpsychologicalarousal. Evenslightembarrassmentwillcauseadefectionoftherecordingpen.Thereisalotof______thateveryemotionhassomephysicaleffect.
Willyou{{U}}lookthrough{{/U}}myessaypleasetofindoutwhetherImadeanymistakes?
{{*HTML*}}下面的短文有15处空白请根据短文的内容为每处空白处确定一个最佳选项 Inflation??Businessand governmentleadersalsoconsidertheinflationratetobeanimportantgeneral indicator.?Inflationisaperiodofincreasedspendingthatcausesrapid risesinprices.{{U}}?51?{{/U}}yourmoneybuysfewergoodssothat youget{{U}}?52?{{/U}}forthesameamountofmoneyasbefore inflationistheproblem.Thereisageneralrise{{U}}?53?{{/U}}the priceofgoodsandservices.Yourmoneybuysless.Sometimespeopledescribe inflationasatimewhenadollarisnotworthadollaranymore.? ?Inflationisaproblemforallconsumers.?Peoplewholiveonafixed incomearehurtthe{{U}}?54?{{/U}}.Retiredpeopleforinstance cannotcountonanincreaseinincomeaspricesrise.Elderlypeoplewhodonot workfaceseriousproblemsinstretchingtheirincomesto{{U}}?55 ?{{/U}}theirneedsintimeofinflation.Retirementincome{{U}}?56 ?{{/U}}anyfixedincomeusuallydoesnotriseasfastasprices.Many retiredpeoplemustcuttheirspendingto{{U}}?57?{{/U}}rising prices.Inmanycasestheymuststop{{U}}?58?{{/U}}somenecessary itemssuchasfoodandclothing.Even{{U}}?59?{{/U}}workingpeople whoseincomesaregoingupinflationcanbeaproblem.The{{U}}?60 ?{{/U}}oflivinggoesuptoo.Peoplewhoworkmusthaveevenmoremoneyto keepuptheirstandardofliving.Justbuyingthethingstheyneedcostsmore. Whenincomesdonotkeep{{U}}?61?{{/U}}withrisingpricesthe standardoflivinggoesdown.Peoplemaybeearningthesameamountofmoney buttheyarenotlivingaswellbecausetheyarenotabletobuyasmanygoods andservices.??Governmentunitsgatherinformationaboutprices inoureconomyandpublishitaspriceindexes{{U}}?62?{{/U}}therate ofchangecanbedetermined.Apriceindexmeasureschangesinpricesusingthe pricefora{{U}}?63?{{/U}}yearasthebase.Thebasepriceissetat 100andtheotherpricesarereportedasa{{U}}?64?{{/U}}ofthebase price.Apriceindexmakes{{U}}?65?{{/U}}possibletocomparecurrent pricesoftypicalconsumergoodsforexamplewithpricesofthesamegoodsin previousyears.
{{*HTML*}}??阅读下面这篇短文短文后列出7个句子请根据短文的内容对每个句子做出判断 ??Industrialpollutionisnotonlya problemforthecountriesofEuropeandNorthAmerica.Itisanextremely seriousprobleminsomedevelopingcountries.Forthesecountieseconomic growthisaveryimportantaim.Theywanttointroduceindustriesandsothey putfewcontrolsonindustrieswhichcausepollution.??Cubatao anindustrialtownof85000peopleinBrazilisanexampleoftheconnection betweenindustrialdevelopmentandpollution.In1954Cubataohadnoindustry. Todayithasmorethantwentylargefactorieswhichproducemany pollutants污染物.Thepeopleofthetownaresufferingfromthepoisonousmatters intheirsurroundingsandthebadeffectscanbeclearlyseen.Birth shortcomingsareextremelycommon.Amongchildrenandgrown-upslungproblems aresometimestwelvetimesmorecommoninCubataothaninother places.??ItistruethatBrazillikemanyothercountrieshas lawsagainstpollutionbuttheselawsarenotcarriedoutstrictlyenough.It ischeaperforcompaniestotakenonoticeofthelawsandpaythefines罚款than tobuytheexpensiveequipmentthatwillreduce?thepollutionItis clearthereforethateconomicgrowthismoreimportanttothe’governmentthan tothehealthoftheworkers.Howevertheresponsibility责任doesnot completelyliewiththeBraziliangovernment.TheexampleofCubataoshowsthat internationalcompaniesarenotactinginaresponsiblewayeither.Anumberof thefactoriesinthetownareownedbylargecompaniesfromFranceItalyand theU.S.TheyaredoingthingsinBrazilthattheywouldnotbeabletodoat home.Iftheycausedthesameamountofpollutionathometheywouldbe severely严厉的punishedorevenputoutof business.Alot-ofcountriesaretryingtosolvethepollutionproblems.
{{*HTML*}}? ?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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Mindandbodyaretwopartsofacomplexorganismcontrolledbythe nervoussystemwhichactsoninformationreceivedfromthesenses.Thewaya personperceivesandreactsdependsonhismoodhisstateofhealthhisdiet hisbodytemperatureandhislevelofconsciousness.??2.Thereis considerableevidencethateverythoughtoremotionhassomerelatedphysical effectandthateverychangewithinthenervoussystemshouldhavesome psychologicaleffect.Althoughtheprecisenatureofthesecorrelationsisnot alwaysknowntheviewthatbodyandmindareconstantlyinteractinginsomeway isnowacceptedbymostpsychologists.??3.Therelationship betweenmindandbodyisparticularlyapparentinemotionalstatesespecially thoseoffearandanger.Whenapersonisinthegripofapowerfulemotionhis bodyundergoeschangesjustasitdoeswhenheisasleepillorunderthe influenceofdrugsoralcohol.Mostpeoplearefamiliarwithsuchsensationsas adrymouthwhentheyarenervousoraracingheartwhentheyareafraidor excited.Suchphysicalchangescanbemeasuredforinstancebyrecordingpulse rateandbreathingorbymeasuringthedilationofthepupilsofthe eyes.??4.aparticularlysensitivemeasureofbodilychange duringperiodsofemotionisthegalvanicskinresponseGSR.Thisisusedin theinstrumentknownastheliedetector.TheGSRdependsonthefactthatsome mentalactivityproducesbodilychangessuchassweatingwhichaffectthe skin’sresistancetoelectricity.TomeasureGSRelectrodesareplacedonthe palmandonthebackofthehandandaweakcurrentispassedbetweenthe electrodes.Changesinthecurrentarerecordedinanamplifiedformoftenby meansofanautomaticallycontrolledpenonmovingpaper.Otherrecordingsfor instanceofpulsebloodpressureandbreathingcanbemadesimultaneouslyby aninstrumentcalledapolygraph.??5.Thegalvanicskinresponse methodhasprovedaveryefficientindicatorofgeneralpsychologicalarousal. Evenslightembarrassmentwillcauseadefectionoftherecordingpen.Para4______.
{{*HTML*}}??阅读下面的短文文中有15处空白每处空白给出4个选项请根据短文的内容从4个选项中选择1个最佳答案 ??Ropeskippinghasmanyadvantagesfor someonelookingforaninexpensiveandconvenientformofexercise.It{{U}} ?51?{{/U}}toallthecomponentsofphysicalfitness{{U}}?52 ?{{/U}}intheareaofcardiorespiratory心和肺的endurance.Ropeskippingcanbe done{{U}}?53?{{/U}}orinpairs.Theendsoftheropeareheldloosely inthefingers.Elbowsshouldbe{{U}}?54?{{/U}}thesidesandthearms pointedawayfromthebody.Thearmsandshouldersmoveincircularmotion;as theropefollowsacircularmotion{{U}}?55?{{/U}}momentum力量势头can beprovidedbyrotatingthewrists.{{U}}?56?{{/U}}bypushingofffrom thetoesjust{{U}}?57?{{/U}}enoughtoallowtheropetopassunder yourfeet.??Somephysicaleducators{{U}}?58?{{/U}}that ropeskippingexpendsasmuchenergyasrunning.Another{{U}}?59 ?{{/U}}istherelativelyshorttimeittakestoperformtheactivity.Some peopleropeskipfor10minutesandfeelthatthisis{{U}}?60?{{/U}}to jogging?for30minutesatleast{{U}}?61?{{/U}}termsofenergy expenditure消耗.Anaddedadvantageofropeskipping{{U}}?62?{{/U}}an activityformanystudentsisthattheydonothavetoskiponhardsurfaces. Somestudentsfindjoggingdifficultbecauseoftheneedto{{U}}?63 ?{{/U}}onhardsurfaces.Ropeskippingontheotherhand{{U}}?64 ?{{/U}}beperformedindoorsoroutdoorsonahardor{{U}}?65 ?{{/U}}surface.Ropeskip-pingcanbedonealmostanywhereatanytime providingthereisspaceenoughfortheropetomakeacomplete revolution.
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Intheolddayschildrenwerefamiliar withbirthanddeathaspartoflife.Thisisperhapsthefirstgenerationof Americanyoungster年轻人whohaveneverbeenclosebyduringthebirthofababy andhaveneverexperiencedthedeathofafamilymember.? ?Nowadayswhenpeoplegrowoldweoftensendthemtonursinghomes.When theygetsickwetransferthemtoahospitalwherechildrenareforbiddento visitterminallyillpatients--evenwhenthosepatientsaretheirparents.This deprives剥夺thedyingpatientofsignificantfamilymembersduringthelastfew daysofhislifeanditdeprivesthechildrenofanexperienceofdeathwhich isanimportantlearningexperience.??SomeofmycolleaguesandI onceinterviewedandfollowedapproximately500terminallyillpatientsinorder tofindoutwhattheycouldteachusandhowwecouldbeofmorebenefitnot justtothembuttothemembersoftheirfamiliesaswell.Weweremost impressedbythefactthateventhosepatientswhowerenottoldoftheir seriousillnesswerequiteawareofitspotentialoutcome.??Itis importantforfamilymembersanddoctorsandnursestounderstandthese patients’?communicationsinordertotrulyunderstandtheirneedsfears andfantasies幻想.Mostofourpatientswelcomedanotherhumanbeingwithwhom theycouldtalkopenlyhonestlyandfranklyabouttheirtrouble.Manyofthem sharedwithustheirtremendousneedtobeinformedtobekeptup-to-dateon theirmedicalconditionandtobetoldwhentheendwasnear.Wefoundoutthat patientswhohadbeendealtwithopenlyandfranklywerebetterabletocope withtheapproachofdeathandfinallytoreachatruestageofacceptanceprior todeath.TheeldersofcontemporaryAmericans______.
{{*HTML*}}下面的短文有15处空白请根据短文的内容为每处空白处确定一个最佳选项 Inflation??Businessand governmentleadersalsoconsidertheinflationratetobeanimportantgeneral indicator.?Inflationisaperiodofincreasedspendingthatcausesrapid risesinprices.{{U}}?51?{{/U}}yourmoneybuysfewergoodssothat youget{{U}}?52?{{/U}}forthesameamountofmoneyasbefore inflationistheproblem.Thereisageneralrise{{U}}?53?{{/U}}the priceofgoodsandservices.Yourmoneybuysless.Sometimespeopledescribe inflationasatimewhenadollarisnotworthadollaranymore.? ?Inflationisaproblemforallconsumers.?Peoplewholiveonafixed incomearehurtthe{{U}}?54?{{/U}}.Retiredpeopleforinstance cannotcountonanincreaseinincomeaspricesrise.Elderlypeoplewhodonot workfaceseriousproblemsinstretchingtheirincomesto{{U}}?55 ?{{/U}}theirneedsintimeofinflation.Retirementincome{{U}}?56 ?{{/U}}anyfixedincomeusuallydoesnotriseasfastasprices.Many retiredpeoplemustcuttheirspendingto{{U}}?57?{{/U}}rising prices.Inmanycasestheymuststop{{U}}?58?{{/U}}somenecessary itemssuchasfoodandclothing.Even{{U}}?59?{{/U}}workingpeople whoseincomesaregoingupinflationcanbeaproblem.The{{U}}?60 ?{{/U}}oflivinggoesuptoo.Peoplewhoworkmusthaveevenmoremoneyto keepuptheirstandardofliving.Justbuyingthethingstheyneedcostsmore. Whenincomesdonotkeep{{U}}?61?{{/U}}withrisingpricesthe standardoflivinggoesdown.Peoplemaybeearningthesameamountofmoney buttheyarenotlivingaswellbecausetheyarenotabletobuyasmanygoods andservices.??Governmentunitsgatherinformationaboutprices inoureconomyandpublishitaspriceindexes{{U}}?62?{{/U}}therate ofchangecanbedetermined.Apriceindexmeasureschangesinpricesusingthe pricefora{{U}}?63?{{/U}}yearasthebase.Thebasepriceissetat 100andtheotherpricesarereportedasa{{U}}?64?{{/U}}ofthebase price.Apriceindexmakes{{U}}?65?{{/U}}possibletocomparecurrent pricesoftypicalconsumergoodsforexamplewithpricesofthesamegoodsin previousyears.
{{*HTML*}}{{B}}第三篇{{/B}} ?Whydoescreamgobadfasterthanbutter? Someresearchersthinktheyhavetheanswer?anditcomesdowntothe structureofthefoodnotitschemicalcomposition--afindingthatcouldhelp ridsomeprocessedfoodsofchemicalpreservatives.??Creamand buttercontainprettymuchthesamesubstancessowhycreamshouldsourmuch fasterhasbeenamystery.Bothareemulsions--tinyglobules小球体ofoneliquid evenlydistributedthroughoutanother.Thedifferenceliesinwhat’sinthe globulesandwhat’sinthesurroundingliquidsaysBrocklehurstwholedthe investigation.??Increamfattyglobulesdriftaboutinaseaof water.Inbutterglobulesofawaterysolutionarelockedawayinaseaoffat. Thebacteriawhichmakethefoodgobadprefertoliveinthewateryregionsof themixture.Thismeansthatincreamthebacteriaarefreetogrowthroughout themixturehesays.??Whenthesituationisreversedthe bacteriaarelockedawayincompartments隔仓室burieddeepintheseaoffat. Trappedinthiswayindividualcoloniescannotspreadandrapidlyrunout nutrients养料.Theyalsoslowlypoisonthemselveswiththeirwasteproducts.In butteryougetaself--limitingsystemwhichstopsthebacteriagrowingsays Broeklehurst.??Theresearchersarealreadyworkingwithfood companieskeentoseeiftheirproductscanbemaderesistanttobacterial attackthroughalterationstothefood’sstructure.Brocklehurstbelievesit willbepossibletomaketheemulsionsusedinsaladcreamforinstancemore likethatinbutter.Thekeywillbetodothiswhilekeepingthesaladcream liquidandnotturninginintoasolidlump.Commercialapplicationoftheresearchfindingwillbepossibleifsaladcreamcanbemaderesistanttobacterialattack______.
{{*HTML*}}? ?下面有3篇短文每篇短文后有5道题每题后面有4个选项请仔细阅读短文并根据短文回答其后面的问题从4个选项中选择1个最佳答案{{B}}第一篇{{/B}} ??Intheolddayschildrenwerefamiliar withbirthanddeathaspartoflife.Thisisperhapsthefirstgenerationof Americanyoungster年轻人whohaveneverbeenclosebyduringthebirthofababy andhaveneverexperiencedthedeathofafamilymember.? ?Nowadayswhenpeoplegrowoldweoftensendthemtonursinghomes.When theygetsickwetransferthemtoahospitalwherechildrenareforbiddento visitterminallyillpatients--evenwhenthosepatientsaretheirparents.This deprives剥夺thedyingpatientofsignificantfamilymembersduringthelastfew daysofhislifeanditdeprivesthechildrenofanexperienceofdeathwhich isanimportantlearningexperience.??SomeofmycolleaguesandI onceinterviewedandfollowedapproximately500terminallyillpatientsinorder tofindoutwhattheycouldteachusandhowwecouldbeofmorebenefitnot justtothembuttothemembersoftheirfamiliesaswell.Weweremost impressedbythefactthateventhosepatientswhowerenottoldoftheir seriousillnesswerequiteawareofitspotentialoutcome.??Itis importantforfamilymembersanddoctorsandnursestounderstandthese patients’?communicationsinordertotrulyunderstandtheirneedsfears andfantasies幻想.Mostofourpatientswelcomedanotherhumanbeingwithwhom theycouldtalkopenlyhonestlyandfranklyabouttheirtrouble.Manyofthem sharedwithustheirtremendousneedtobeinformedtobekeptup-to-dateon theirmedicalconditionandtobetoldwhentheendwasnear.Wefoundoutthat patientswhohadbeendealtwithopenlyandfranklywerebetterabletocope withtheapproachofdeathandfinallytoreachatruestageofacceptanceprior todeath.ChildreninAmericatodayaredeniedthechance______.
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{{*HTML*}}? ?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个选项中为规定段每段选择1个正确的小标题2第27～30题要求从所给的6个选项中选择4个正确选项分别完成每个句子 1.Mindandbodyaretwopartsofacomplexorganismcontrolledbythe nervoussystemwhichactsoninformationreceivedfromthesenses.Thewaya personperceivesandreactsdependsonhismoodhisstateofhealthhisdiet hisbodytemperatureandhislevelofconsciousness.??2.Thereis considerableevidencethateverythoughtoremotionhassomerelatedphysical effectandthateverychangewithinthenervoussystemshouldhavesome psychologicaleffect.Althoughtheprecisenatureofthesecorrelationsisnot alwaysknowntheviewthatbodyandmindareconstantlyinteractinginsomeway isnowacceptedbymostpsychologists.??3.Therelationship betweenmindandbodyisparticularlyapparentinemotionalstatesespecially thoseoffearandanger.Whenapersonisinthegripofapowerfulemotionhis bodyundergoeschangesjustasitdoeswhenheisasleepillorunderthe influenceofdrugsoralcohol.Mostpeoplearefamiliarwithsuchsensationsas adrymouthwhentheyarenervousoraracingheartwhentheyareafraidor excited.Suchphysicalchangescanbemeasuredforinstancebyrecordingpulse rateandbreathingorbymeasuringthedilationofthepupilsofthe eyes.??4.aparticularlysensitivemeasureofbodilychange duringperiodsofemotionisthegalvanicskinresponseGSR.Thisisusedin theinstrumentknownastheliedetector.TheGSRdependsonthefactthatsome mentalactivityproducesbodilychangessuchassweatingwhichaffectthe skin’sresistancetoelectricity.TomeasureGSRelectrodesareplacedonthe palmandonthebackofthehandandaweakcurrentispassedbetweenthe electrodes.Changesinthecurrentarerecordedinanamplifiedformoftenby meansofanautomaticallycontrolledpenonmovingpaper.Otherrecordingsfor instanceofpulsebloodpressureandbreathingcanbemadesimultaneouslyby aninstrumentcalledapolygraph.??5.Thegalvanicskinresponse methodhasprovedaveryefficientindicatorofgeneralpsychologicalarousal. Evenslightembarrassmentwillcauseadefectionoftherecordingpen.Para2______.

Paragraph 2 ______

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