患者女性,35岁,因活动后有呼吸困难,近半年有进行性加重,并伴有咳嗽,声音嘶哑,既往患者有风湿热,常有扁桃体炎发生,考虑为慢性风湿性心脏病二尖瓣狭窄。风湿性心脏病二尖瓣狭窄心电图表现正确的是
D
暂无解析
翻译训练:
筷子(chopsticks)是中国传统的独具特色的进食工具(diningutensils),至今已有数千年的历史。筷子在古代被称为“箸”,大约从明朝开始才有了“筷子”的称呼。筷子多为竹子制成,也有用木头、象牙(ivory)、金属或其他材料制作而成。它要么上方下圆,要么上下全圆而上粗下细。不管其形状如何,筷子必须是成对使用的,并且两只筷子的大小长短要相同。筷子是中国人日常生活的必备工具,它的发明充分反映了中国人民的智慧。
翻译:
中华民族的传统文化博大精深、源远流长。早在2000多年前,就产生了儒家学说和道家学说,以及其他很多在中国思想史上有地位的学说流派,这就是有名的“诸子百家”。从孔夫子到孙中山,中华民族传统文化有它的很多珍贵品质。比如“天下兴亡,匹夫有责”的爱国情操,“民为邦本”、“民贵君轻”的民本思想和“己所不欲,勿施于人”的行为准则。
Scatteredthroughtheseasoftheworldarebillionsoftonsofsmallplantsandanimalscalledplankton.Mostoftheseplantsandanimalsaretoosmallforthehumaneyetosee.Theydriftaboutlazilywiththecurrents,providingabasicfoodformanylargeranimals.Planktonhasbeendescribedastheequivalentofthegrassesthatgrowonthedrylandcontinents,andthecomparisonisanappropriateone.Inpotentialfoodvaluehowever,planktonfaroutweighsthatofthelandgrasses.Onescientisthasestimatedthatwhilegrassesoftheworldproduceabout49billiontonsofvaluablecarbohydrateseachyear.Thesea’splanktongeneratesmorethantwiceasmuch.
Despiteitsenormousfoodpotential,littleeffortwasmadeuntilrecentlytofarmplanktonaswefarmgrassesonland.Nowmarinescientistshaveatlastbeguntostudythispossibility,especiallyasthesea’sresourcesloomevenmoreimportantasameansoffeedinganexpandingworldpopulation.
Nooneyethasseriouslysuggestedthat“planktonburgers”maysoonbecomepopulararoundtheworld.Asapossiblefarmedsupplementaryfoodsource,however,planktonisgainingconsiderableinterestamongmarinescientists.
Onetypeofplanktonthatseemstohavegreatharvestpossibilitiesisatinyshrimplikecreaturecalledkrill.Growingtotwoorthreeincheslong,krillprovidethemajorfoodforthegiantbluewhale,thelargestanimalevertoinhabittheEarth.Realizingthatthiswhalemaygrow100feetandweigh150tonsatmaturity,itisnotsurprisingthateachonedevoursmorethanonetonofkrilldaily.
Krillswimaboutjustbelowthesurfaceinhugeschoolssometimesmileswide,mainlyinthecoldAntarctic.Becauseoftheirpinkcolor,theyoftenappearasasolidreddishmasswhenviewedfromashiporfromtheair.Krillareveryhighinfoodvalue.Apoundofthesecrustaceanscontainsabout460calories—aboutthesameasshrimporlobster,towhichtheyarerelated.
Ifthekrillcanfeedsuchhugecreaturesaswhales,manyscientistsreason,theymustcertainlybecontendersasnewfoodsourceforhumans.
1.Whichofthefollowingbestportraystheorganizationofthepassage?
A.Theauthorpresentstheadvantagesanddisadvantagesofplanktonasafoodsource.
B.Theauthorquotespublicopiniontosupporttheargumentforfarmingplankton.
C.Theauthorclassifiesthedifferentfoodsourcesaccordingtoamountofcarbohydrate.
D.Theauthormakesageneralstatementaboutplanktonasafoodsourceandthenmovestoaspecificexample.
2.Accordingtothepassage,whyisplanktonregardedtobemorevaluablethanlandgrasses?
A.Itiseasiertocultivate.
B.Itproducesmorecarbohydrates.
C.Itdoesnotrequiresoil.
D.Itismorepalatable.
3.Whydoestheauthormention“planktonburgers”?
A.Todescribetheappearanceofonetypeofplankton.
B.Toillustratehowmuchplanktonawhaleconsumes.
C.Tosuggestplanktonasapossiblefoodsources.
D.Tocomparethefoodvaluesofbeefandplankton.
4.Whatismentionedasoneconspicuousfeatureofkrill?
A.Theyarethesmallestmarineanimals.
B.Theyarepinkincolor.
C.Theyaresimilarinsizetolobsters.
D.Theyhavegrasslikebodies.
5.Theauthormentionsallofthefollowingasreasonswhyplanktoncouldbeconsideredahumanfoodsourceexceptthatitis___.
A.highinfoodvalue.
B.inabundantsupplyintheoceans.
C.anappropriatefoodforotheranimals.
D.freeofchemicalsandpollutants.
Theauthortellsusinparagraph4________.
PartIReadingComprehension
Directions:Inthisparttherearefourpassages.Eachpassageisfollowedbyfourcomprehensionquestions.Readthepassageandanswerthequestions.ThenmarkyouranswerontheAnswerSheet.
Passage1
Questions1to5arebasedonthefollowingpassage:
Someyearsagothecaptainofashipwasveryinterestedinmedicine.Healwaystookmedicinebookstoseaandlikedtotalkaboutdifferentdiseases.
Onedayalazysailoronhisshippretendedtobeill.Helayonhisbunk(铺)andgroanedasifhewereverysick.Thecaptaincametoseehimandwasverypleasedtohaveapatienttolookafter.Hetoldthemantorestforafewdaysandmadetheothersailorsdohiswork.Threedayslateranothersailorpretendedthathehadsomethingwrongwithhischest.Oncemorethecaptainlookedinhismedicalbooksandtold“sick”mantohavearest.
Theothersailorswereveryangrybecausetheyhadmoreworktodo.Thepatientshadthebestfoodandlaughedattheirfriendswhenthecaptainwasnotlooking.Atlastthemate(船长副手)decidedtocurethe“sick”men.Hemixedupsomesoap,soot(烟灰),glue(胶水)andotherunpleasantthings.Thenheobtainedpermissionfromthecaptaintogivehismedicinetothe“sick”men.Whentheytastedthemedicine,theyreallydidfeelill.Itwassohorriblethatoneofthepatientsjumpedoutofhibunk,ranupondeskandclimbedthehighestmastontheship.Hedidnotwantanymoremedicine.
Thematetoldbothofthementhattheymusttakethemedicineeveryhalfanhour,nightandday.Thissooncuredthem.Theybothsaidtheyfeltbetterandwantedtostartwordagain.Thecaptainrealizedthatthementriedtodeceivehimsohemadethemworkveryhardfortherestofthevoyage.
1.Thefirstsailorpretendedtobeillbecausehewantedto.
A.testthecaptain’sknowledgeofmedicineB.befreefromwork
C.havethebestfoodontheshipD.playajokeonhisfriends
2.Whenthecaptainknewasailorwasill,he.
A.didn’tcaremuchB.sentforadoctor
C.lookedafterhimandtoldhimtohavearestD.gavehimsomemedicine
3.Thepatientsfeltbetterquicklybecause.
A.theyhadbeengivenpropermedicine
B.theylearnedthatthecaptainhadfoundoutthetruth
C.theywerelaughedatbytheirfriends
D.themedicinethemategavewashorrible
4.Whenthecaptainknewhehadbeendeceived,he.
A.toldthemnottodosoagainB.losthistemper
C.madethemworkharderD.firedthem
5.Whichofthefollowingbestsummarizesthepassage?
A.AsuddenCure.B.TwoPatients.C.CaptainandSailors.D.ADifficultVoyage.