操纵_______是改变旋翼拉力大小的主要手段。
A、桨距杆A
暂无解析
Passage3
Questions11to15arebasedonthefollowingpassage:
Thecowboyistheheroofmanymovies,.Heis,eventoday,asymbolofcourageandadventure.Butwhatwasthelifeofthecowboyreallylike?
Thecowboy’sjobisclearfromthewordcowboy.Cowboyweremenwhotookcareofcowsandothercattle.ThecattlewereintheWestandinTexas.PeopleinthecitiesoftheEastwantedbeefthesecattle.Trainscouldtakethecattleeast.Butfirstthecattlehadtogettothetrains.Partofthecowboy’sjobwastotakethecattlehundredsofmilestotherailroadtown.Thetripswerecalledcattledrivers.Acattledriveusuallytookseveralmonths.Cowboysrodeforsixteenhoursaday.Becausetheyrodesomuch,eachcowboybroughtalongabouteighthorses.Acowboychangedhorsesseveraltimeseachday.
Thecowboyshadtomakesurethatcattlearrivedsafely.Beforestartingonadrive,thecowboysbrandedthecattle.Theyburnedamarkonthecattletoshowwhotheybelongedto.Butthesemarksdidn’tstoprustlers,orcattlethieves.Cowboyshadtoprotectthecattlefromrustlers.Rustlersmadethedangeroustripevenmoredangerous.
Eventhoughtheirworkwasverydifficultanddangerous,cowboysdidnotearnmuchmoney.Theywerepaidbadly.Yetcowboyslikedtheirwayoflife.Theylivedinawildandopencountry.Theylivedalifeofadventureandfreedom.
11.Acowboyisasymbolof.
A.courageandadventureB.ahardlifeandbigpay
C.moviesinthepastD.cowsandothercattle
12.Thecowboys’jobwas.
A.tobeaheroinreallifeB.tobeaheroofthemovie
C.totakecareofcattleD.tobeadangerousrustler
13.Duringacattledriver,cowboystookagroupofcowsfromawildandopencountryto.
A.theWeststatesandTexasB.thecitiesoftheEastStates
C.thepeoplewhoeatbeefincitiesD.therailroadtownshundredmilesaway
14.Ontheirwayofcattledrivers,thecowboysprotectedthecattleby.
A.burningamarkontheircowsB.keepinganeyeoncattlethieves
C.makingthetripmoredangerousD.lookingaftereightcowseachperson
15.Cowboysenjoyedthemselvesbecause.
A.theylikedtheirwayoflifeB.theymadealotofmoney
C.theyhadavarydifficultjobD.theywereheroesinmovies
Thecompositionscontainedsofewerrorsthattheteachergotthestudents_____oneanother’spapers.
Directions:
Inthissection,youwillheartwopassages.Attheendofeachpassage,youwillhearsomequestions.Boththepassageandthequestionsmwillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA,B,CandD.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.PassageOneQuestions9to12arebasedonthepassageyouhavejustheard.
9、A.Sheescapedunhurt.
B.Shewitnessedtheshooting.
C.Shewasshottodeath.
D.Shewas15yearsold.
10、A.5.B.7.C.11.D.12.
11、A.Spear'sdigitalcamera.
B.Onesuspect'sgun.
C.Thequeen'svideo.
D.Berry'spurse.
12、A.Civiliansshouldkeepawayfromthebusinesszone.
B.Everybodyshouldthinkabouthowtofightagainstcrimes.
C.Governmentshouldscheduletonegotiatewithterrorists.
D.Peopleshouldemigratebecauseofdomestichighcrimerate.PassageTwo
Questions13to15arebasedonthepassageyouhavejustheard.
13、A.Increasingsalaries.
B.Surgingenergyproduction.
C.Boominghousingmarket.
D.Risinginterestrates.
14、A.Increasinginterestrate.
B.Decreasingfinancialproducts.
C.Buyingsubstantialsecurities.
D.Expandingfinancialbusiness.
15、A.Frackingcaninfluencetheburningoffossilfuels.
B.Theuseoffrackingwilldoharmtoenvironment.
C.Frackingtechnologyisasafepracticeinindustry.
D.Theuseoffrackingisbeneficialtopeople'shealth.
Time_____,thecelebrationwillbeheldasscheduled.
PartIReadingComprehension
Passage1
Questions1to5arebasedonthefollowingpassage:
InWashingtonD.C.,1600PennsylvaniaAvenueisaveryspecialaddress.ItistheaddressoftheWhiteHouse,thehomeofthepresidentoftheUnitedStates.
OriginallytheWhiteHousewasgrayandwascalledthePresidentialPalace.Itwasbuiltfrom1792to1800.atthistime,thecityofWashingtonitselfwasbeingbuilt;itwastobethenation’snewcapitalcity.GeorgeWashington,thefirstpresident,andPierreCharlesL’Enfant,aFrenchengineer,chosetheplaceforthenewcity.L’Enfantthenplannedtheycity.Thepresident’shomewasanimportantpartoftheplan.
Acontestwasheldtopickadesignforthepresident’shome.AnarchitectnamedJamesHobanwon.Hedesignedalargethree-storyhouseofgraystone.
PresidentWashingtonneverlivedinthePresidentPalace.ThefirstpresidenttolivetherewasJohnAdams,thesecondpresidentoftheUnitedStates,andhiswifeMrs.Adamsdidnotreallylikehewnewhouse.Inherletters,sheoftencomplainedaboutthecold.Fiftyfireplaceswerenotenoughtokeepthehousewarm!
In1812theUnitedStatesandBritainwenttowar.In1814theBritishinvadedWashington.Theuburnedmanybuildings,includingthePresidentialPalace.
AfterthewarJamesHoban,theoriginalarchitect,partiallyrebuiltthepresident’shomes.Tocoverthemarksofthefire,thebuildingwaspaintedwhite.BeforelongitbecameknownastheWhiteHouse.
TheWhiteHouseisoneofthemostpopulartouristattractionsintheUnitedStates.Everyyearmorethan1.5millionvisitorsgothroughthefiveroomsthatareopentothepublic.
1.TheWhiteHousewasbuiltinWashington.
A.becauseaFrenchengineerwasinvitedtodesignit
B.becausePresidentGeorgeWashingtonlikedtoliveinit
C.becausetheBritishinvaderslivedinitin1812-1814
D.becauseitwastobethenation’scapitalcity
2.ThePresidentialPalacewas.
A.paintedgrayandwhiteB.madeofgraystone
C.madeofwhitestoneD.madeverywarminwinter
3.Thepresident’shomeandthecityofWashingtonwere.
A.builtbytheAmericanarmyB.builtbytheBritishtroops
C.plannedbyGeorgeWashingtonD.plannedbytheFrench
4.Theoriginalhomeofthepresidentneededtoberebuilt.
A.becauseJohnAdam’swifedidnotlikeit
B.becauseitwascoldinwinterevenwith50fireplaces
C.becauseithadburneddownduringthewar
D.becauseGeorgeWashingtonwasnotwillingtoliveinit
5.Thenewpresidentialhomewaspaintedwhiteto.
A.coverthemarksoffireB.attracttouristfromFrance
C.topleaseMrs.JohnAdamsD.keepitwarminwinter