首页
试卷库
试题库
当前位置：
X题卡
>
所有题目
>
题目详情
Save Energy at Home On the average, Americans waste as much energy as two-thirds of the world’s pop...
查看本题答案
包含此试题的试卷
综合类《单选集》真题及答案
点击查看
你可能感兴趣的试题
BSolarenergyforyourhomeiscoming.Itcanhelpyouasasin
SaveEnergyatHome OntheaverageAmericanswasteasmuch
where
while
that
since
SaveEnergyatHome OntheaverageAmericanswasteasmuch
improve
create
face
explain
SaveEnergyatHome OntheaverageAmericanswasteasmuch
Moreover
However
Therefore
so
Solarenergyforyourhomeiscoming.Itcanhelpyouasasing
SaveEnergyatHome OntheaverageAmericanswasteasmuch
phone
water
food
energy
SaveEnergyatHome OntheaverageAmericanswasteasmuch
less
most
rarely
seldom
SaveEnergyatHome OntheaverageAmericanswasteasmuch
carry
bring
take
give
SaveEnergyatHome OntheaverageAmericanswasteasmuch
want
have
try
forget
Toprotecttheenvironmentandsaveenergyscientistsarew
SaveEnergyatHome OntheaverageAmericanswasteasmuch
correct
turned
set
reduced
Solarenergyforyourhomeiscoming.Itcanhelpyouasasing
SaveEnergyatHome OntheaverageAmericanswasteasmuch
speed
system
cost
profit
SaveEnergyatHome OntheaverageAmericanswasteasmuch
covering
using
repairing
leaving
Solarenergyforyourhomeiscoming.Itcanhelpyouasasing
SaveEnergyatHome OntheaverageAmericanswasteasmuch
air
rain
wind
sunlight
SaveEnergyatHome OntheaverageAmericanswasteasmuch
about
with
on
over
SaveEnergyatHome OntheaverageAmericanswasteasmuch
bright
rainy
foggy
dark
SaveEnergyatHome OntheaverageAmericanswasteasmuch
power
result
way
work
SaveEnergyatHome OntheaverageAmericanswasteasmuch
1ayers
levels
degrees
points
热门试题
更多
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
WritingLikefinefoodgoodwritingissomethingweapproachwithpleasureandenjoyfromthefirsttastetothelast.1Quitethecontraryjustasthecookhastoundergoanintensivetrainingmasteringtheskillsofhistradethewritermustsitathisdeskanddevotelonghourstoachievingastyleinhiswritingwhateveritspurpose-schoolworkmattersofbusinessorpurelysocialcommunication.2Therearestillsomeremoteplacesintheworldwhereyoumightfindsomeonetodoyourbusinessorsocialwritingforyouforafee.Thereareafewmangerswhoareluckyenoughtohavetheserviceofthatrarekindofsecretarywhocantakecareofallsortsofletterwritingwithnomorethanaquicknotetoworkfrom.3Wehavetowriteschoolpapersbusinesspapersorhomepapers.Weareconstantlycalledontoputwordstopaper.Itwouldbedifficulttocountthenumberofsuchwordsmessageslettersandreportsputtothemailsordeliveredbyhandbutthedailyfiguremustbeenormous.4Wewanttoarouseandholdtheinterestofreaders.Wewantwhateverwewritetobereadfromfirstwordtolastnotthrownintosomeletters-to-be-readfileorintoawastepaperbasket.5A.Butformostofusifthereisanywritingtobedonewehavetodoitourselves.B.Howeverthemanagersmaysometimescausethewritersalotoftrouble.C.Anygoodwriterslikegoodcooksdonotsuddenlyappearfull-blown成熟的.D.Whatismoreeveryonewhowritesexpectsoratleasthopesthathiswritingwillberead.E.Thisisthemasonwebendoureffortstowardlearningandpracticingtheskillsofinterestingeffectivewriting.F.Youmaybesurethatthegreatertheeffortthemoreeffectivethewritingandthemorerewardin
Common-coldSenseYoucan’tbeatitbutyoudon’thavetojoinit.Maybeitgotthenamecommoncoldbecauseit’smorecommoninwinter.Thefactisthoughbeingcolddoesn’thaveanythingtodowithgettingone.Coldsarecausedbythespreadofrhinovirusesandatleastsofarmedicalscienceisbetterattellingyouhowtoavoidgettingonethanhowtogetridofone.Childrenarethemostcommonwaycoldvirusesarespreadtoadultsbecausetheyhavemorecoldsthanadults—anaverageofabouteightperyear.WhydokidsseemsomuchmoreeasilytogetcoldsthantheirparentsSimple.Theyhaven’thadtheopportunitytobecomeimmunetomanycoldviruses.Therearemorethan150differentcoldvirusesandyouneverhavethesameonetwice.Beinginfectedbyonemakesyouimmunetoit--butonlyit.Coldsaleusuallyspreadbydirectcontactnotsneezingorcoughing.Fromanotherperson’shandtoyourhandandthentoyournoseoreyesisthemostcommonroute.Thehighestconcentrationofcoldvirusesanywhereisfoundunderthethumbnailsofaboyalthoughthevirusescansurviveforhoursonskinorothersmoothsurfaces.Hygieneisyourbestdefense.Washyourhandsfrequentlypreferablywithadisinfectantsoapespeciallywhenchildreninyourhouseholdhavecolds.Butevencarefulhygienewon’twardoffeverycold.SowhatworkswhenacoughingsneezingrunnynosestrikesTheoldprescriptionoftwoaspirinslotsofwaterandbedrestisagoodplacetostart.Butyou’llalsofindsomeofthefolkremedies..worthWing.Hotmixturesofsugarorhoneylemonandwaterhaverealbenefits.rhinovirusn.鼻病毒immuneadj.免疫的有免疫力disinfectantn.消毒剂杀菌剂prescriptionn.诀窍处方药方sneezevi.打喷嚏thumbnailn.拇指Accordingtotheessayyoumayhaveacoldbecause______.
AmericanSportsTheUnitedStatesisasports-lovingnation.SportsinAmericatakeavarietyofforms:organizedcompetitivestruggleswhichdrawhugecrowdstocheertheirfavoriteteamtovictory;athleticgamesplayedforrecreationanywheresufficientspaceisfound;andhuntingandfishing.Mostsportsareseasonalsothatwhatishappeninginsportsdependsuponthetimeofyear.Somesportsarecalledspectatorsportsasthenumberofspectatorsgreatlyexceedsthenumberplayinginthegame.BaseballisthemostpopularsportintheUS.Itisplayedthroughoutthespringandsummerandprofessionalbaseballteamsplaywellintothefall.AlthoughnoothergameisexactlylikebaseballperhapstheonemostnearlylikeitistheEnglishgameofcricket.Footballisthemostpopularsportinthefall.Thegameoriginatedasacollegesportmorethan75yearsago.Itisstillplayedbyalmosteverycollegeanduniversityinthecountryandthefootballstadiumsofsomeofthelargestuniversitiesseatasmanyas80000people.ThegameisnotthesameasEuropeanfootballorsoccer.InAmericanfootballthereare11playersoneachteamandtheyaredressedinpaddeduniformsandhelmetsbecausethegameisroughandinjuriesarelikelytooccur.BasketballisthewintersportinAmericanschoolsandcolleges.LikefootballbasketballoriginatedintheUSandisnotpopularinothercountries.ManyAmericanspreferittofootballbecauseitisplayedindoorsthroughoutthewinterandbecauseitisafastergame.Itisaverypopulargamewithhighschoolsandinmorethan20statesstate-widehighschoolmatchesareheldyearly.Otherspectatorsportsincludewrestlingboxingandhorseracing.Althoughhorse-racingfanscallthemselvessportsmentheaccuracyofthetermisquestionableasonlythejockeyswhoridethehorsesintheracescanbeconsideredathletes.Theso-calledsportsmenarethespectatorswhodonotassembleprimarilytoseethehorsesracebuttobetupontheoutcomeofeachrace.Gamblingistheattractionofhorseracing.Horse-racingfanscannotbeconsideredsportsmenbecausetheyarespectatorswhoseprimaryinterestisgambling.
WritingLikefinefoodgoodwritingissomethingweapproachwithpleasureandenjoyfromthefirsttastetothelast.1Quitethecontraryjustasthecookhastoundergoanintensivetrainingmasteringtheskillsofhistradethewritermustsitathisdeskanddevotelonghourstoachievingastyleinhiswritingwhateveritspurpose-schoolworkmattersofbusinessorpurelysocialcommunication.2Therearestillsomeremoteplacesintheworldwhereyoumightfindsomeonetodoyourbusinessorsocialwritingforyouforafee.Thereareafewmangerswhoareluckyenoughtohavetheserviceofthatrarekindofsecretarywhocantakecareofallsortsofletterwritingwithnomorethanaquicknotetoworkfrom.3Wehavetowriteschoolpapersbusinesspapersorhomepapers.Weareconstantlycalledontoputwordstopaper.Itwouldbedifficulttocountthenumberofsuchwordsmessageslettersandreportsputtothemailsordeliveredbyhandbutthedailyfiguremustbeenormous.4Wewanttoarouseandholdtheinterestofreaders.Wewantwhateverwewritetobereadfromfirstwordtolastnotthrownintosomeletters-to-be-readfileorintoawastepaperbasket.5A.Butformostofusifthereisanywritingtobedonewehavetodoitourselves.B.Howeverthemanagersmaysometimescausethewritersalotoftrouble.C.Anygoodwriterslikegoodcooksdonotsuddenlyappearfull-blown成熟的.D.Whatismoreeveryonewhowritesexpectsoratleasthopesthathiswritingwillberead.E.Thisisthemasonwebendoureffortstowardlearningandpracticingtheskillsofinterestingeffectivewriting.F.Youmaybesurethatthegreatertheeffortthemoreeffectivethewritingandthemorerewardin
Themostcrucialproblemanyeconomicsystemfacesishowtouseitsscarceresources.
AmericanSportsTheUnitedStatesisasports-lovingnation.SportsinAmericatakeavarietyofforms:organizedcompetitivestruggleswhichdrawhugecrowdstocheertheirfavoriteteamtovictory;athleticgamesplayedforrecreationanywheresufficientspaceisfound;andhuntingandfishing.Mostsportsareseasonalsothatwhatishappeninginsportsdependsuponthetimeofyear.Somesportsarecalledspectatorsportsasthenumberofspectatorsgreatlyexceedsthenumberplayinginthegame.BaseballisthemostpopularsportintheUS.Itisplayedthroughoutthespringandsummerandprofessionalbaseballteamsplaywellintothefall.AlthoughnoothergameisexactlylikebaseballperhapstheonemostnearlylikeitistheEnglishgameofcricket.Footballisthemostpopularsportinthefall.Thegameoriginatedasacollegesportmorethan75yearsago.Itisstillplayedbyalmosteverycollegeanduniversityinthecountryandthefootballstadiumsofsomeofthelargestuniversitiesseatasmanyas80000people.ThegameisnotthesameasEuropeanfootballorsoccer.InAmericanfootballthereare11playersoneachteamandtheyaredressedinpaddeduniformsandhelmetsbecausethegameisroughandinjuriesarelikelytooccur.BasketballisthewintersportinAmericanschoolsandcolleges.LikefootballbasketballoriginatedintheUSandisnotpopularinothercountries.ManyAmericanspreferittofootballbecauseitisplayedindoorsthroughoutthewinterandbecauseitisafastergame.Itisaverypopulargamewithhighschoolsandinmorethan20statesstate-widehighschoolmatchesareheldyearly.Otherspectatorsportsincludewrestlingboxingandhorseracing.Althoughhorse-racingfanscallthemselvessportsmentheaccuracyofthetermisquestionableasonlythejockeyswhoridethehorsesintheracescanbeconsideredathletes.Theso-calledsportsmenarethespectatorswhodonotassembleprimarilytoseethehorsesracebuttobetupontheoutcomeofeachrace.Gamblingistheattractionofhorseracing.BaseballsharesmanyfeatureswiththeEnglishgameofcricket.
Thegovernmentisdebatingtheeducationlaws.
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
SincetheGreatDepressiontheUnitedStatesgovernmenthasprotectedfarmersfromdamagingdropsingrainprices.
Thecityhasdecidedtodoawaywithalltheoldbuildingsinitscenter.
AmericanSportsTheUnitedStatesisasports-lovingnation.SportsinAmericatakeavarietyofforms:organizedcompetitivestruggleswhichdrawhugecrowdstocheertheirfavoriteteamtovictory;athleticgamesplayedforrecreationanywheresufficientspaceisfound;andhuntingandfishing.Mostsportsareseasonalsothatwhatishappeninginsportsdependsuponthetimeofyear.Somesportsarecalledspectatorsportsasthenumberofspectatorsgreatlyexceedsthenumberplayinginthegame.BaseballisthemostpopularsportintheUS.Itisplayedthroughoutthespringandsummerandprofessionalbaseballteamsplaywellintothefall.AlthoughnoothergameisexactlylikebaseballperhapstheonemostnearlylikeitistheEnglishgameofcricket.Footballisthemostpopularsportinthefall.Thegameoriginatedasacollegesportmorethan75yearsago.Itisstillplayedbyalmosteverycollegeanduniversityinthecountryandthefootballstadiumsofsomeofthelargestuniversitiesseatasmanyas80000people.ThegameisnotthesameasEuropeanfootballorsoccer.InAmericanfootballthereare11playersoneachteamandtheyaredressedinpaddeduniformsandhelmetsbecausethegameisroughandinjuriesarelikelytooccur.BasketballisthewintersportinAmericanschoolsandcolleges.LikefootballbasketballoriginatedintheUSandisnotpopularinothercountries.ManyAmericanspreferittofootballbecauseitisplayedindoorsthroughoutthewinterandbecauseitisafastergame.Itisaverypopulargamewithhighschoolsandinmorethan20statesstate-widehighschoolmatchesareheldyearly.Otherspectatorsportsincludewrestlingboxingandhorseracing.Althoughhorse-racingfanscallthemselvessportsmentheaccuracyofthetermisquestionableasonlythejockeyswhoridethehorsesintheracescanbeconsideredathletes.Theso-calledsportsmenarethespectatorswhodonotassembleprimarilytoseethehorsesracebuttobetupontheoutcomeofeachrace.Gamblingistheattractionofhorseracing.ManyAmericanslikebasketballbetterthanfootballbecausethelatterissoharshthatplayershavetowearspecialuniforms.
Weshouldnevercontentourselveswithonlyalittleknowledge.
ImportanceofServicesTheUnitedStateshasmovedbeyondtheindustrialeconomystagetothepointwhereithasbecometheworld’sfirstserviceeconomy.Almostthreefourthsofthenon-farmlaborforceisemployedinserviceindustriesandovertwo-thirdsofthenation’sgrossnationalproductisaccountedforbyservices.Alsoservicejobstypicallyholdupbetterduringarecessionthandojobsinindustriesproducingtangiblegoods.Duringthe20-yearperiodof1966to1986about36millionnewjobswerecreatedintheUnitedStates—farmorethaninJapanandWesternEuropecombined.About90percentofthesejobswereinserviceindustries.Duringthissametimespansome22millionwomenjoinedthelaborforce—and97percentofthesewomenwenttoworkintheservicesector.Theseemploymenttrendsareexpectedtocontinueatleastuntiltheyear2000.Fortheperiod1986—2000theBureauofLaborStatisticspredictsthatover21millionnewjobswillbecreatedand93percentofthemwillbeinserviceindustries.Moreovermostofthisexplosivegrowthinservicesemploymentisnotinlow—payingjobscontrarytothebeliefsofmanyeconomistsbusinessandlaborleadersandpoliticians.ThesepeoplearguethatmanufacturingjobswhichhavebeentheeconomicfoundationofAmerica’smiddleclassarevanishing.Theyclaimthatfactoryworkersarebeingreplacedwithahostoflow-wageearners.Itistruethatmanufacturingjobshavedeclinedwithmanyofthemgoingtoforeigncountries.Itisalsotruethattherehasbeengrowthinsomelow-payingservicejobs.Yetcooksandcounterpeoplestillrepresentonly1percentoftheUSlaborforcetoday.Furthermoreformanyyearsthefastest-growingoccupationalcategoryhasbeenprofessionaltechnicalandrelatedwork.Thesejobspaywellabovetheaverageandmostareinserviceindustries.Aboutone-halfofconsumerexpendituresareforthepurchaseofservices.Projectionstotheyear2000indicatethatserviceswillattractallevenlargershareofconsumerspending.Adrawbackoftheserviceeconomyboomisthatthepricesofmostserviceshavebeengoingupataconsiderablyfasterratethanthepricesofmosttangibleproducts.YouareundoubtedlyawareofthisifyouhavehadyourcarorTVsetrepairedhadyourshoeshalf-soledorpaidamedicalbillinrecentyears.Whenwesaythatservicesaccountforclosetoone-halfofconsumerexpenditureswestillgrosslyunderstatetheeconomicimportanceofservices.Thesefiguresdonotincludethevastamountsspentforbusinessservices.Byallindicationsspendingforbusinessserviceshasincreasedevenmorerapidlythanspendingforconsumerservices.grossnationalproduct国民生产总值略作GNPtangiblegoods有形商品drawbackn.缺点;不利条件Theimportanceofservicescanbeshown______.
Common-coldSenseYoucan’tbeatitbutyoudon’thavetojoinit.Maybeitgotthenamecommoncoldbecauseit’smorecommoninwinter.Thefactisthoughbeingcolddoesn’thaveanythingtodowithgettingone.Coldsarecausedbythespreadofrhinovirusesandatleastsofarmedicalscienceisbetterattellingyouhowtoavoidgettingonethanhowtogetridofone.Childrenarethemostcommonwaycoldvirusesarespreadtoadultsbecausetheyhavemorecoldsthanadults—anaverageofabouteightperyear.WhydokidsseemsomuchmoreeasilytogetcoldsthantheirparentsSimple.Theyhaven’thadtheopportunitytobecomeimmunetomanycoldviruses.Therearemorethan150differentcoldvirusesandyouneverhavethesameonetwice.Beinginfectedbyonemakesyouimmunetoit--butonlyit.Coldsaleusuallyspreadbydirectcontactnotsneezingorcoughing.Fromanotherperson’shandtoyourhandandthentoyournoseoreyesisthemostcommonroute.Thehighestconcentrationofcoldvirusesanywhereisfoundunderthethumbnailsofaboyalthoughthevirusescansurviveforhoursonskinorothersmoothsurfaces.Hygieneisyourbestdefense.Washyourhandsfrequentlypreferablywithadisinfectantsoapespeciallywhenchildreninyourhouseholdhavecolds.Butevencarefulhygienewon’twardoffeverycold.SowhatworkswhenacoughingsneezingrunnynosestrikesTheoldprescriptionoftwoaspirinslotsofwaterandbedrestisagoodplacetostart.Butyou’llalsofindsomeofthefolkremedies..worthWing.Hotmixturesofsugarorhoneylemonandwaterhaverealbenefits.rhinovirusn.鼻病毒immuneadj.免疫的有免疫力disinfectantn.消毒剂杀菌剂prescriptionn.诀窍处方药方sneezevi.打喷嚏thumbnailn.拇指WhenoneishavingacoldhemayoftenhaveallthefollowingsymptomsEXCEPT______.
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
ImportanceofServicesTheUnitedStateshasmovedbeyondtheindustrialeconomystagetothepointwhereithasbecometheworld’sfirstserviceeconomy.Almostthreefourthsofthenon-farmlaborforceisemployedinserviceindustriesandovertwo-thirdsofthenation’sgrossnationalproductisaccountedforbyservices.Alsoservicejobstypicallyholdupbetterduringarecessionthandojobsinindustriesproducingtangiblegoods.Duringthe20-yearperiodof1966to1986about36millionnewjobswerecreatedintheUnitedStates—farmorethaninJapanandWesternEuropecombined.About90percentofthesejobswereinserviceindustries.Duringthissametimespansome22millionwomenjoinedthelaborforce—and97percentofthesewomenwenttoworkintheservicesector.Theseemploymenttrendsareexpectedtocontinueatleastuntiltheyear2000.Fortheperiod1986—2000theBureauofLaborStatisticspredictsthatover21millionnewjobswillbecreatedand93percentofthemwillbeinserviceindustries.Moreovermostofthisexplosivegrowthinservicesemploymentisnotinlow—payingjobscontrarytothebeliefsofmanyeconomistsbusinessandlaborleadersandpoliticians.ThesepeoplearguethatmanufacturingjobswhichhavebeentheeconomicfoundationofAmerica’smiddleclassarevanishing.Theyclaimthatfactoryworkersarebeingreplacedwithahostoflow-wageearners.Itistruethatmanufacturingjobshavedeclinedwithmanyofthemgoingtoforeigncountries.Itisalsotruethattherehasbeengrowthinsomelow-payingservicejobs.Yetcooksandcounterpeoplestillrepresentonly1percentoftheUSlaborforcetoday.Furthermoreformanyyearsthefastest-growingoccupationalcategoryhasbeenprofessionaltechnicalandrelatedwork.Thesejobspaywellabovetheaverageandmostareinserviceindustries.Aboutone-halfofconsumerexpendituresareforthepurchaseofservices.Projectionstotheyear2000indicatethatserviceswillattractallevenlargershareofconsumerspending.Adrawbackoftheserviceeconomyboomisthatthepricesofmostserviceshavebeengoingupataconsiderablyfasterratethanthepricesofmosttangibleproducts.YouareundoubtedlyawareofthisifyouhavehadyourcarorTVsetrepairedhadyourshoeshalf-soledorpaidamedicalbillinrecentyears.Whenwesaythatservicesaccountforclosetoone-halfofconsumerexpenditureswestillgrosslyunderstatetheeconomicimportanceofservices.Thesefiguresdonotincludethevastamountsspentforbusinessservices.Byallindicationsspendingforbusinessserviceshasincreasedevenmorerapidlythanspendingforconsumerservices.grossnationalproduct国民生产总值略作GNPtangiblegoods有形商品drawbackn.缺点;不利条件Between1966and1986theUnitedStatescreatedabout______.
AsamatteroffactIlovesoftmusicmorethanpopularmusic.
Theinterviewtookplacearoundthekitchentableandwasverycausal.
SaltyRicePlantBoostsHarvestsBritishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore.TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty.Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice.Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.InLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind.Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive.ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse.OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld.Theattitudeoftheauthortowardstheresearchprojectis______.
Common-coldSenseYoucan’tbeatitbutyoudon’thavetojoinit.Maybeitgotthenamecommoncoldbecauseit’smorecommoninwinter.Thefactisthoughbeingcolddoesn’thaveanythingtodowithgettingone.Coldsarecausedbythespreadofrhinovirusesandatleastsofarmedicalscienceisbetterattellingyouhowtoavoidgettingonethanhowtogetridofone.Childrenarethemostcommonwaycoldvirusesarespreadtoadultsbecausetheyhavemorecoldsthanadults—anaverageofabouteightperyear.WhydokidsseemsomuchmoreeasilytogetcoldsthantheirparentsSimple.Theyhaven’thadtheopportunitytobecomeimmunetomanycoldviruses.Therearemorethan150differentcoldvirusesandyouneverhavethesameonetwice.Beinginfectedbyonemakesyouimmunetoit--butonlyit.Coldsaleusuallyspreadbydirectcontactnotsneezingorcoughing.Fromanotherperson’shandtoyourhandandthentoyournoseoreyesisthemostcommonroute.Thehighestconcentrationofcoldvirusesanywhereisfoundunderthethumbnailsofaboyalthoughthevirusescansurviveforhoursonskinorothersmoothsurfaces.Hygieneisyourbestdefense.Washyourhandsfrequentlypreferablywithadisinfectantsoapespeciallywhenchildreninyourhouseholdhavecolds.Butevencarefulhygienewon’twardoffeverycold.SowhatworkswhenacoughingsneezingrunnynosestrikesTheoldprescriptionoftwoaspirinslotsofwaterandbedrestisagoodplacetostart.Butyou’llalsofindsomeofthefolkremedies..worthWing.Hotmixturesofsugarorhoneylemonandwaterhaverealbenefits.rhinovirusn.鼻病毒immuneadj.免疫的有免疫力disinfectantn.消毒剂杀菌剂prescriptionn.诀窍处方药方sneezevi.打喷嚏thumbnailn.拇指Childrenhavemorecoldsbecause______.
AmericanSportsTheUnitedStatesisasports-lovingnation.SportsinAmericatakeavarietyofforms:organizedcompetitivestruggleswhichdrawhugecrowdstocheertheirfavoriteteamtovictory;athleticgamesplayedforrecreationanywheresufficientspaceisfound;andhuntingandfishing.Mostsportsareseasonalsothatwhatishappeninginsportsdependsuponthetimeofyear.Somesportsarecalledspectatorsportsasthenumberofspectatorsgreatlyexceedsthenumberplayinginthegame.BaseballisthemostpopularsportintheUS.Itisplayedthroughoutthespringandsummerandprofessionalbaseballteamsplaywellintothefall.AlthoughnoothergameisexactlylikebaseballperhapstheonemostnearlylikeitistheEnglishgameofcricket.Footballisthemostpopularsportinthefall.Thegameoriginatedasacollegesportmorethan75yearsago.Itisstillplayedbyalmosteverycollegeanduniversityinthecountryandthefootballstadiumsofsomeofthelargestuniversitiesseatasmanyas80000people.ThegameisnotthesameasEuropeanfootballorsoccer.InAmericanfootballthereare11playersoneachteamandtheyaredressedinpaddeduniformsandhelmetsbecausethegameisroughandinjuriesarelikelytooccur.BasketballisthewintersportinAmericanschoolsandcolleges.LikefootballbasketballoriginatedintheUSandisnotpopularinothercountries.ManyAmericanspreferittofootballbecauseitisplayedindoorsthroughoutthewinterandbecauseitisafastergame.Itisaverypopulargamewithhighschoolsandinmorethan20statesstate-widehighschoolmatchesareheldyearly.Otherspectatorsportsincludewrestlingboxingandhorseracing.Althoughhorse-racingfanscallthemselvessportsmentheaccuracyofthetermisquestionableasonlythejockeyswhoridethehorsesintheracescanbeconsideredathletes.Theso-calledsportsmenarethespectatorswhodonotassembleprimarilytoseethehorsesracebuttobetupontheoutcomeofeachrace.Gamblingistheattractionofhorseracing.HuntingandfishingaremainlyfavoredbymenyoungandoldintheUS.
SaltyRicePlantBoostsHarvestsBritishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore.TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty.Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice.Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.InLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind.Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive.ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse.OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld.WhichofthefollowingisNOTmentionedasacauseoftheproblemdiscussedinthepassage
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
Hurricanes龙卷风Didyouknowthatbefore1950hurricaneshadnonamesTheyweresimplygivennumbers.ThefirstnamesweresimplyAlphaBravoCharlieetc.butin1953femalesnamesweregivenbecauseoftheunpredictability不可预知factorofthestorms.In1979realizingthesexist性别歧视的natureofsuchnamesthelistswereexpandedtoincludebothmenandwomen.Hurricanesandtyphoons台风arethesamethings.IftheyformintheAtlanticwecallthesestrongstormshurricanesfromtheWestIndianwordhurricanemeaningbigwind.AndiftheyarePacificstormstheyarecalledtyphoonsfromtheChinesetaifunmeaninggreatwind.Tobeclassifiedasahurricanethestormmusthavemaximumwindsofatleast75mph.Thesestormsarebigmanyhundredsofmilesindiameter.Hurricanesgettheirpowerfromwatervaporasitgivesoutitsstored-upenergy.Allwatervaporgivesoutheatasitcondenses凝结fromagaseousstatetoaliquidstateoverfixedpointsontheequator赤道.Tomakeahurricaneyoumusthaveextremelywetwarmairthekindofairthatcanonlybefoundintropicalregion.Scientistshavedeterminedthattheheatgivenoutintheprocessofwatercondensationcanbeashighas95billionkilowattsperhour.Injustonedayalonethestormcanproducemoreenergythanmanyindustrializednationsneedinanentireyear!Theproblemisthatwedon’tknowhowtomakesuresuchgreatenergyworkforus.Predictingthepathofahurricaneisoneofthemostdifficulttasksforforecasters.Itmovesatatypicalspeedof15mph.Butnotalways.Somestormsmayraceattwicethisspeedthensuddenlystopandremaininthesamelocationforseveraldays.Itcanbemaddening发疯的ifyouliveinacoastalareathatmaybehit.Thebiggestadvanceinearlydetectioniscontinuouswatchfromweathersatellites.Withthesewecanseethestormsformandtrackthemfullyfrombirthtodeath.Whiletheycanstillkillpeopleanddestroypropertyhurricaneswillneversurpriseanynationagain.Energyspecialistsmaybeinterestedin______ofhurricanes.
OneGoodReasontoLetSmallpoxLiveIt’snowafairbetthatwewillneverseethetotalextinctionofthesmallpoxvirus.Theideawastocapthegloriousachievementof1980whensmallpoxwaseradicatedinthewildbydestroyingthekillervirusinthelasttwolabsthataresupposedtohaveit—oneintheUSandoneinRussia.IfsmallpoxhadtrulygonefromtheplanetwhatpointWasthereinkeepingthesereserves1realityofcourseitwasnaiveto2thateveryonewouldlet3ofsuchapotentpotentialweapon.Undoubtedlyseveralnationsstillhave4vials.5thelastofficialstocksoflivevirusbredmistrustoftheUSandRussia6noobviousgain.NowAmericanresearchershave7ananimalmodelofthehumandiseaseopeningthe8fortestsonnewtreatmentsandvaccines.Soonceagainthere’sagoodreasonto9thevirus—justin10thediseaseputsinareappearance.Howdowe11withthemistrustoftheUSandRussia12.Keepthevirus13internationalauspicesinawell-guardedUNlaboratorythat’sopentoallcountries.TheUSwillobjectofcoursejustasitrejectsamultilateralapproachtojustabouteverything.Butitdoesn’t14theideaiswrong.Ifthevirus15usefulthenlet’smakeittheservantofallhumanity—notjustapartofit.smallpoxn.天花vialn.小瓶auspicesn.赞助支持capvt.结束覆盖potentadj.有效力的强有力的mistrustn.不信任怀疑
SaltyRicePlantBoostsHarvestsBritishscientistsarebreedinganewgenerationofriceplantsthatwillbeabletogrowinsoilcontainingsaltwater.Theirworkmayenableabandonedfarmstobecomeproductiveoncemore.TimFlowersandTonyYeofromSussexUniversity’sSchoolofBiologicalScienceshavespentseveralyearsresearchinghowcropssuchasricecouldbemadetogrowinwaterthathasbecomesalty.Thepairhaverecentlybegunathree-yearprogrammefundedbytheBiotechnologyandBiologicalSciencesResearchCounciltoestablishwhichgenesenablesomeplantstosurvivesaltyconditions.Theaimistobreedthiscapabilityintocropsstartingwithrice.Itisestimatedthateachyearmorethan100hectares公顷ofagriculturallandarelostbecausesaltgetsintothesoilandstunts妨碍生长plants.Theproblemiscausedbyseveralfactors.Inthetropicsmangroves红树林thatcreateswamps沼泽andtraditionallyformedbarrierstoseawaterhavebeencutdown.IntheMediterraneanaseriesofdroughtshavecausedthewatertabletodropallowingseawatertoseep渗透in.InLatinAmericairrigationoftencausesproblemswhenwaterisevaporated蒸发bytheheatleavingsaltdepositsbehind.Excesssaltthenenterstheplantsandpreventsthemfunctioningnormally.Heavyconcentrationsofmineralsintheplantsstopthemdrawingupthewatertheyneedtosurvive.ToovercometheseproblemsFlowersandYeodecidedtobreedriceplantsthattakeinverylittlesaltandstorewhattheydoabsorbincellsthatdonotaffecttheplants’growth.Theyhavestartedtobreedthesecharacteristicsintoanewricecropbutitwilltakeabouteightharvestsbeforetheresultingseedsarereadytobeconsideredforcommercialuse.OncethecharacteristicsforsurvivingsaltysoilareknownFlowersandYeowilltrytobreedtheappropriategenesintoallmannersofcropsandplants.Landthathasbeenabandonedtonaturewillthenbeabletobloomagainprovidingmuchneededfoodinthepoorercountriesoftheworld.WhichofthefollowingstatementsaboutFlowersandYeoisTRUE
热门题库
更多
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
外贸综合业务
湘公网安备 43130202000226号