the air in thehot air balloonn __(expand)when it is heate

黑龙江省大庆市第三十中学2014届九年级英语下学期期中试题(无答案)&人教新目标版&&新目标
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黑龙江省大庆市第三十中学2014届九年级英语下学期期中试题(考试时间:90分钟,总分:120分)听力(25分)(1)听单词,每小题听1遍。()1.A.hatB.catC.map()2.A.ChineseB.EnglishC.Physics()3.A.theGreatWallB.thePalaceMuseumC.theSummerPalace()4.A.thetrainB.thebusC.theplane()5.A.mountainB.riverC.lake(2)听对话,回答每段对话后面的问题,在各题所给的三个选项中选出一个最佳答案,每段对话听两遍。请听第一段对话,回答第6小题。()6.Wheredidtheboygo?A.TheGreatWall.B.TheBird’sNest.C.TheSummerPalace请听第二段对话,回答第7小题。.()7.Didtheboygotoseethepyramids?A.Yes,hedid.B.No,hedidn’t.C.Wedon’tknow.请听第三段对话,回答第8小题。()8.Whataretheytalkingabout?A.TheMt.Qomolangma.B.TheGrandCanyon.C.TheGreatWall.请听第四段对话,回答第9小题。()9.What’sthenameofthemountain?A.Mt.Qomolangma.B.JerryC.HuangShan请听第五段对话,回答第10小题。()10.WhereistheStonehenge?A.InEngland.B.IntheUSA.C.InChina.请听第六段对话,回答第11,12小题。()11.Whatisthemandoing?A.Doingaresearchpaper.B.Writingaletter.C.Playingcomputergames.()12.Themancan’tusethecomputer,canhe?A.Yes,hecan.B.No,hecan’t.C.Yes,hecan’t请听第七段对话,回答第13,14,15小题。()13.WhatdidthewomanseeinCairo?A.Rivers.B.Buildings.C.Pyramids()14.WhydoesthewomanlikeLuxorbetterthanCairo?A.Becauseitisalittletown.B.Becauseitiscleanandgoodforshopping.C.Becauseitiseasyforshopping.()15.Whatdidthewomanbuy?A.Acoat.B.Awatch.C.Acomputer(3)听短文,请根据所听内容,在每小题给出的三个选项中,选出一个能回答所提问题或完成所给句子的最佳答案,短文听两遍。()16.TheDeadSeaisa________A.biglakeB.smalllakeC.bigsea.()17.ThewaterintheDeadSeais____________.A.sweet.B.salty.C.terrible()18.It’s___________thereA.coldB.windy.C.hot()19.TheDeadSeaisagoodplacefor_________.A.floating.B.running.C.jumping()20.Thereare__________intheDeadSea.A.lotsoffish.B.nofish.C.someplants(4)听填信息,请你根据所听内容,填写正确的信息完成信息采集卡,短文听两遍。每空一词。21.WheredoesJanework?Ina______________22.Whydopatientslikeher?Becausesheis________________23.Howaboutgoingtoschool?Jamesisalways_______________24.Whatdoeshisgrandpahelphimtodo?His__________________25.Whatcouldn’thisgrandpafind?His__________________II.选择填空(15分)()1.Thesickboy_____tothehospitalbythepoliceyesterday..A.istakenB.wastakenC.takesD.took()2._____youswim?Yes,butI’mnotagoodswimmer.A.CanB.MayC.NeedD.Must()3.Wastepapershouldn’t_____everywhere.It’sourdutytokeepourschoolclean.A.bethrownB.throwC.isthrownD.arethrown()4.Bookscanbeproduced_____thanbefore.A.quicklyandcheaplyB.lessquicklyandcheaplyC.morequicklyandcheaplyD.morequicklyandmorecheaply()5.Wehavefivekindsofschoolbags.Doyoulikethisone?No,Canyoushowme_____A.anotherB.eachotherC.theotherD.others()6.InformationTechnologyshouldbefamiliar_____us,butweweren’tfamiliar_____itbefore.A.with,toB.to,withC.by,withD.by,to()7.Theseproblemsaretoohardto_____.Willyougivemesomeadvice?A.workoutB.lookoutC.handoutD.putout()8.Samlookslikehisdad.Theyare_____tall.A.eitherB.anyC.allD.both()9.Bob!Isthisyourdictionary?No,itisn’t.AskSally.Sheislookingfor_____A.hisB.hersC.mineD.yours()10.Youaren’taprofessionalsportsman,areyou?_____.Iamjustafootballfan.A.Yes,IamB.No,I’mnotC.OfcourseD.Sometimes()11.Whydidyoubuyaradio?_____English.A.learnB.learningC.TolearnD.Belearning()12.Theboydoesn’tspeak_____hissister,buthiswrittenworkisverygood.A.aswellasB.sogoodasC.morebetterthanD.muchworsethan()13.Eachofushastowritea___________reporteverytwoweeks.A.two-hundred-wordB.two-hundreds-wordC.two-hundreds-wordsD.two-hundred-words()14.Hi,Tom!Canyoutellmewhen______forHarbin?Yes,tomorrowafternoonA.leavingB.leavesC.toleaveD.areyouleaving()15.Thepoormanwasmade_____inthefieldsallday.A.toworkB.workC.workingD.worksIII.完型填空(10分)YaoMingisoneofthebestbasketballplayersintheworld.HeisthesymbolofChina’ssporting_16___.HewasborninShanghai,onSep.12,1980.In1997,Yao__17__theShanghaiSharks.ThenheplayedforHoustonRocketsin2002.YaobecameahouseholdnameinChinabefore_18___hisNBAcareer.Butnowhehasretiredafterplaying8seasonsintheNBA.Becausehisfootandleg_19___badly,hehastostophisbasketballcareer(事业,生涯)__20__30.“Iwillformallyendmycareer,”saidYao.”Todayisanimportantdayformeandholdsaspecialmeaningfor__21__mybasketballcareerandmyfuture,”Yaosaid.”IhadtoleavesinceIsufferedastressfracture(断裂)inmyleftfootforthethirdtimeattheendoflastyear.Mypastsixmonthswasapainfulwait.Ihavebeen_22___myfutureoverandoveragain.TodayIammakingapersonal_23___,endingmycareerasabasketballplayer.Butonedoorisclosingand__24__oneisopening.”Yaosaidhe__25__toworkwiththeShanghaiSharks.()16.A.successfulB.successfullyC.successD.succeed()17.A.joinedB.joinC.takepartinD.tookpartin()18.A.startsB.tostartC.startingD.started()19.A.hurtB.hurtsC.washurtD.werehurt()20.A.attheageofB.theageofC.attheageD.in()21.A.eitherB.bothC.betweenD.neither()22.A.thinkingaboutB.thinkingofC.thinkingbackD.thinkingout()23.A.decideB.decidedC.decisionD.decisions()24.A.anotherB.otherC.theotherD.others()25.A.returnedB.returnsC.wouldreturnD.willreturnIV.情景对话,选择下列各句对应的答语。(5分)()26.CanIborrowyourdictionary?A.Yes,Ihave.()27.Haveyoufinishedreadingthebookyet?B.Certainly.()28.Youmustpromisethatyouwilllookafterit.C.Hereyouare.()29.CanIaskafavour?D.Promise.()30.I’msorryI’mlate.E.Itdoesn’tmatter.You’dbettercomeearliernexttime..V.阅读理解(30分)(46---50每题2分)(A)ScienceandTechnologyMuseumOpeninghours:Saturday-Wednesday10:00-17:30Charge:$5What’son:AncientTechnology-thegroundfloorModernTechnology-thefirstfloorSpace-thesecondfloorPleasenote:Themuseumisclosedfor3daysduringSpringFestivaleveryyear.Contactus:根据短文内容,判断正(T)误(F):()36.Theticketis$8.()37.Youcanvisitthemuseumeveryday.()38.ModernTechnologyroomisonthegroundfloor.()39.AncientTechnologyroomisonthefirstfloor.()40.Thephonenumberis.(B)AprofessorfromNewYorkoncewenttoaremoteareatodosomescienceresearch.Oneday,heatesomethingwrongandbecamesick,butitwastoofartogobacktothecity.“Ihavetoseeadoctor,”hesaidtoalocal.“HowcanIbesureofgettingagoodone?”“It’seasy,”wasthereply.“Everytimeadoctorlosesapatient,it’sourlawthathemustflyaballoonabovehisoffice.”Sohebeganhissearch.Onedoctorflew20balloons,another30.Thentheprofessorfoundanofficethatwasflyingonlyfive,andwentin.“You’llhavetowait.I’vebeenverybusy,”theyoungdoctortoldhim.”Istartedmybusinessonlyyesterday.”()41.Theprofessorwasfrom__________.A.AustraliaB.BritainC.JapanD.America()42.Theword“remote”means________.A.遥远的B.繁华的C.附近的D.城市的()43.Theyoungdoctorwasthe_____doctortheprofessorfound.A.firstB.secondC.thirdD.fourth()44.Hewantedtofindadoctorbecause_________A.Hewantedtodoscienceresearch.B.Hewantedtoflyaballoon.C.Hewantedtospeaktoalocal.D.Hebecamesick.()45.Whichofthefollowingstatementsistrueaccordingtothepassage?.A.Theprofessorwenttotheremoteareatoseeadoctor.B.Thedoctorwhohadfiveballoonswasthebestone.C.Thedoctorhadfiveballoonsbecausehehadlostfivepatients.D.Thelocaltoldtheprofessortoseethedoctorwithfiveballoons.(C)Thereisnotenoughoilintheworldnow.Astimegoesby,itbecomeslessandless,sowhatarewegoingtodowhenitrunsout(用完)?Perhapswewillgobacktousehorses,carriages(马车)andbikes.IntheSecondWorldWar,somepeopledidn’tusegas(汽油)madefrompetroleum(石油)intheircars.Theymadegasformwoodandplantsinstead.Thecardidn’tgofast,buttheyran,sothiswasbetterthannothing.However,inthefuture,wecan’tcutdownallourtreestomakegas,weneedourtreesforotherthings,tooBesidesdifferenttypesofgas,wecanalsouseelectricity(电)torunourcars,butfirstwemustmaketheelectricity,somecountrieshavecoal(煤)andtheymakeelectricitywiththat,butwemightnotalwayshavecoal,either,Othercountrieshavebig,strongriversandtheycanusethepowerofwatertoturnturbines(涡轮机)andmakeelectricitymoreeasilyandcheaply.Wearealsoabletogetpowerfromtheoceantides(潮汐).Weputturbinesintothemouthoftheriver.Thenthetidecomesinthewaterturnstheturbinesandthenitgoesout,itturnsthemagain.Whichofthesewayswillbeusedtorunourcarsinthefuture?()41.Thepassageismainlyabout__________.A.howtorunourcarsB.whattodowhenoilrunsoutC.differenttypesofgasD.thewaystomakeelectricity()42.Howmanywaysaresuggestedtomakeelectricityinthepassage?A.2B.5C.4D.3()43.WhatdidsomepeopleusetomakegasintheSecondWorldWar?A.waterB.coalC.woodandplantsD.tides()44.Whenmightpeoplehavetogobacktousehorsesandcarriages?A.Whentheyarepoor.B.Whentheyrunoutofoil.C.Whentheyneedmoreexercise.D.Whentherearen’tanybigtreesintheworld.()45.Accordingtothepassage,whichofthefollowingstatementsistrue?.A.Thereismorepetroleumthanwecanusenow.B.Treesareneededforsomeotherthingsbesidesmakinggas.C.Wegotelectricityfromoceantidesintheolddays.D.Gaswasn’tusedtoruncarsintheSecondWorldWar..(D)Ten-year-oldObamawasoneoftheonlythreeblackstudentsathisschoolinHawaii,theUS.Heisdifferentfrommostoftheotherstudents.Whitegirlswantedtotouchhishair.Awhiteboyaskedhimwhetherhisfatherwaspeople.“IliedtothemthatmyfatherwasaKenyanprince(肯尼亚王子),ButIkeptaskingmyselfwhoIwas,”hesaid.37yearslatertoeveryone‘ssurprise,theboybecamefamous.HebecamethefirstblackpresidentinUShistory.HewasborntoanAfricanfatherandawhiteAmericanwomanfromasmalltownintheUSin1961.HegrewupinIndonesia(印度尼西亚)andHawaii(夏威夷).Thisunusualbackgroundmadehimwonderwhohewas.Heevenwantedtoforgetthisquestion.Withthehelpofhisfriends,hefinallyturnedhislifearoundintheuniversity.AfterleavingfromColumbiaUniversityin1983,hehadagreatidea――workinghardtobringchangetotheworld.SohemovedfromNewYorktoChicago(芝加哥)in1985andworkedinapoorAfrican-Americanareaforthreeyears,Afterthat,hestudiedlawsinHarvardUniversity(哈佛大学)andgraduated(毕业)in1991.奥巴马的成功使马丁.路德.金(MartinLutherKing)的梦想变成了现实。Thatis:Amanshouldnotbejudged(评判)bythecolorofhisskin(肤色),butbythecontentofthischaracter(品行)”hesaidatthespeechinChicagoafterhewaselected(选举).46.WhenObamawastenyearsold,theotherstudentsathisschoolwere______________tohim.47.Obama’sfatherwasn’taKenyanprince,washe?______________________48.FromthestoryweknowthatColumbiaUniversityisinthecityof___________49.将文中中文译成英语。___________________________________________________________________50.用people作主语改写划线句子,保持句意不变。VI.首字母填空(5分)Nowitisfoundthatstudentshardlyhavesports.Isitb____51____theyhavenointerestissports?Itmaynotbetrue.Theyarealwayss____52____theyhavemoreimportantthingstodo.Whataretheseimportantthings?E____53____!Theyhavetogetreadyforallkindsofexamsortestsinschool.Manyofthema___54_____becomebookworms(书呆子)becausetheyhavetos___55_____alltheirtimestudying.Underthepressure(压力)fromtheirparentsandteachers,itisnecessaryf___56_____studentstogivealloftheirfreetimetotheirstudiesandgiveupsportsandtheirhobbies.Thishasbroughtmanyp____57____forthemselvesandtheirfamiliesortheirschoolsbecausetheyaren’ti___58_____instudying.Theybecome“problemchildren.”Educationcan’tgow___59_____physicaltrainingbecauseaquickmindhardlygoesalongwithaweakbody.Weshouldr___60_____:Ifstudentsdon’thaveastrongbody,theycanneverdoanythingwell.Howcantheysucceedinlife?51.__________52___________53__________54__________55__________56__________57___________58__________59__________60__________VII.词汇运用(10分)61.Haveyoueverwonagoldm__________?62.WheneveryonethinksTomisdead,he’sstilla__________.63.I’llbep__________tohelpyouineverywayIcan.64.TheGreatWallisoneoftheworldw__________.65.Nobodylikeshisidea.Allofthemarea__________it.66.Manystarsappearinfilmsora__________.67.Inourschool,studentsarenota__________tousemobilephones.68.L__________up,everyone!YaoMingwillvisitourschooltomorrow.69.Thed__________betweenBeijingandNanjingisabout1,100kilometers.70.Doyouknowtheh__________ofMt.Qomolangma?VIII.用所给词的正确形式填空。(10分)71.他五岁就会写小说,我一点也不知道。.Hecouldwriteanovelattheageoffive.____________________tome!72.我正站在长城边上。I’mstanding________________________________________theGreatWall.73.他们在峡谷的底部。Theyare________________________________________thecanyon.74.这里太黑了,什么也看不见。It’s__________dark____________________anythinghere.75.我宁愿留在家里照顾妈妈,也不愿去参加那个宴会。I’dliketostayathometolookaftermymother____________________gototheparty.76.据我所知,这儿从不下雪。______________________________Iknow,it____________________here.IX.句型转换(5分)请你为博物馆写五条观众须知:Makenotesaboutwhatpeoplecan’tdointhemuseum.1.____________________________________________________________________2.____________________________________________________________________3.____________________________________________________________________4.____________________________________________________________________5.___________________________________________________________X.书面表达(10分)节约资源,保护环境,从我们身边的小事做起,请以“MyLow-CarbonLife”为题,写一篇80字左右的短文,简述自己的低碳生活。(提示词:turnofflights,leavetheclassroom,turnoffthetaps,reusewater,washtheclothes,cleanthefloor,plasticbags,savepaper,necessary,protectourenvironment)1.每天不行上学;2.离开教室时,关灯,电扇,电脑;3.不用水时,关掉水龙头,使用循环水。4.不使用塑料袋等。……______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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旺旺:lisi355How a Hot Air Balloon Works
HOW THE BALLOON WORKS
Hot air balloons are an ingenious application of basic scientific principles. Here we will show exactly how the
balloon works, what makes it rise and fall and how a pilot is able to maneuver it when it is in the air.
The basis of how the balloon works is that warmer air rises in cooler air. This is because hot air is lighter than cool air as it has
less mass per unit of volume. Mass can be defined by the measure of how much matter something contains. The actual balloon (called an
envelope) has to be so large as it takes such a large amount of heated air to lift it off the ground. For example, to lift 1000 pounds
worth of weight you would need almost 65,000 cubic feet of heated air! To help keep the balloon in the air and rising, hot air needs
to be propelled upwards into the envelope using the burner (see separate section on burners for more information.)
A hot air balloon is made up of 3 main parts:
The Envelope
The actual fabric balloon which holds the air
The Burner
The unit which propels the heat up inside the envelope
The Basket
Where the passengers and pilot stand
The burner uses propane gas to heat up the air in the envelope to move the balloon off the ground and into the air. The pilot must keep
firing the burner at regular intervals throughout the flight to ensure that the balloon continues to be stable. Naturally, the hot air
will not escape from the hole at the very bottom of the envelope as firstly, hot air rises and secondly, the buoyancy keeps it moving up.
The controls for piloting a balloon are actually extremely simple....
1 - To move the balloon upwards - the pilot opens up the propane valve which lets the propane flow to the burner which in turn fires
the flame up into the envelope. Works in much the same way as a gas grill, the more you open the valve, the bigger the flame to heat the air,
the faster the balloon rises.
2 - To move the balloon downwards - the 'Parachute Valve' at the very top of the balloon is what is used to bring the balloon down
towards the ground. It is essentially a circle of fabric cut out of the top of the envelope which is controlled by a long chord which runs
down through the middle of the envelope to the basket. If the pilot wants to bring the balloon down he simply pulls on the chord which will
open the valve, letting hot air escape, decreasing the inner air temperature. This cooling of air causes the balloon to slow its ascent.
So essentially this takes care of the up and down movement, so how does the balloon move from place to place? Again the answer is very
simple, the pilot can maneuver horizontally by changing the vertical position of the balloon because the wind blows in different directions
at different altitudes. If the pilot wants to move in a particular direction they simply ascend and descend to the appropriate level and
ride with the wind.
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var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);英语翻译air has no smell.air has no tsate.But when the wind blows,You feel it on your face.Look at a kite,Or a plane in the air.How do they stay there?They ride on air,How does a balloon Rise in the air,And lift people up?It uses hot air.We need _百度作业帮
英语翻译air has no smell.air has no tsate.But when the wind blows,You feel it on your face.Look at a kite,Or a plane in the air.How do they stay there?They ride on air,How does a balloon Rise in the air,And lift people up?It uses hot air.We need
英语翻译air has no smell.air has no tsate.But when the wind blows,You feel it on your face.Look at a kite,Or a plane in the air.How do they stay there?They ride on air,How does a balloon Rise in the air,And lift people up?It uses hot air.We need air to breathe.We need air to survive.And when we breathe it,It keeps us alive.
空气无觉无味,风吹时你感觉它扑面而来看那空中的风筝或是飞机它们是怎样在那停留它们因空气遨游蓝天气球又是怎样升向空中怎样将人升向空中它凭的是热空气呼吸离不开空气生存离不开空气呼吸空气才能生存
空气没有嗅觉。空气没有tsate。但是风刮,你觉得它在你的脸上。看这风筝,或者在空中的一架飞机。他们怎样停留在那里?他们乘坐空气,一个气球怎样在空中上升,并且向上提起人?它使用热空气。我们需要空气呼吸。我们需要空气才能生存。并且我们说出它,它保持我们活着。...
空气没有嗅觉。风刮,在你的脸上。看这风筝,或者在空中的一架飞机。他们怎样停留在那里?他们乘坐空气,一个气球怎样在空中上升,并且向上提起人?它使用热空气。我们需要空气呼吸。我们需要空气才能生存。并且我们说出它,它保持我们活着。
空气没有气味,没有味道。但是刮风时,你的脸能感觉到它。看一下空中的风筝或者是飞机,他们怎样停留在那里?他们在空气上|中飞行。气球是如何飞起来的以及带人们升空的?使用的是热的空气。我们呼吸的是空气,我们需要空气才能生存。当我们呼吸,空气使我们活着...
空气没有气味,也没有味道。但是当风儿吹起时,你将闻到空气的味道。看,天空里的风筝或者飞机。它们是怎样待在空中飘摇的呢?它们飞翔在空中。热气球又是怎样载着人类飞翔于空中的呢?哦,它使用的是热气球!我们呼吸需要空气。我们生存需要空气。空气,让我们存在。...
空气虽无色无味。。但当微风袭来,吹拂着你的脸,它就在你身边看那飞翔的风筝,或是翱翔的机翼。。。是风儿赋予了他们亲近天空的能力看那冉冉升空的气球,和它承载的游客。。是热空气为他们插上飞行的翅膀我们呼吸着空气,依赖着空气。。。并在一吸一呼中,度过我们的一生...
空气没有嗅觉空气没有tsate但是风刮你觉得它在你的脸上看这风筝或者在空中的一架飞机他们怎样停留在那里他们乘坐空气一个气球怎样在空中上升并且向上提起人它使用热空气我们需要空气呼吸我们需要空气才能生存并且我们说出它它保持我们活着(应该对吧)...
空气没有呼吸,空气没有味道
空气无法嗅到空气,也无法品尝。当微风拂过,你却能真真切切的感受到它触碰你的脸颊。那风筝——或是飞机——它们如何滞留在空中?——凌云驾雾。气球如何将人带向万丈高空?——只是因为热空气。【这里的hot air翻译成热空气不怎么好听,但是还是不能用氢气代替,毕竟热空气、氢气是不同的物质。】空气陪伴你呼吸、空气掀动你的鼻翼。<...

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