記住這 100個(gè)句子相當(dāng)于背了7000個(gè)單詞

1.TypicalofthegrasslanddwellersofthecontinentistheAmericanantelope,orpronghorn.1.美洲羚羊，或稱叉角羚，是該大陸典型的草原動(dòng)物。2.OfthemillionswhosawHaley’scometin1986,howmanypeoplewilllivelongenoughtoseeitreturninthetwenty-firstcentury.2.1986年看見哈雷慧星的千百萬人當(dāng)中，有多少人能夠長壽到足以目睹它在二十一世紀(jì)的回歸呢？3.Anthropologistshavediscoveredthatfear,happiness,sadness,andsurpriseareuniversallyreflectedinfacialexpressions.3.人類學(xué)家們已經(jīng)發(fā)現(xiàn)，恐懼，快樂，悲傷和驚奇都會行之于色，這在全人類是共通的。4.Becauseofitsirritatingeffectonhumans,theuseofphenolasageneralantiseptichasbeenlargelydiscontinued.4.由于苯酚對人體帶有刺激性作用，它基本上已不再被當(dāng)作常用的防腐劑了。5.Ingrouptoremaininexistence,aprofit-makingorganizationmust,inthelongrun,producesomethingconsumersconsiderusefulordesirable.5.任何盈利組織若要生存，最終都必須生產(chǎn)出消費(fèi)者可用或需要的產(chǎn)品。6.Thegreaterthepopulationthereisinalocality,thegreatertheneedthereisforwater,transportation,anddisposalofrefuse.6.一個(gè)地方的人口越多，其對水，交通和垃圾處理的需求就會越大。7.Itismoredifficulttowritesimply,directly,andeffectivelythantoemployflowerybutvagueexpressionsthatonlyobscureone’smeaning.7.簡明，直接，有力的寫作難于花哨，含混而意義模糊的表達(dá)。8.Withmodernofficesbecomingmoremechanized,designersareattemptingtopersonalizethemwithwarmer,lesssevereinteriors.8.隨著現(xiàn)代辦公室的日益自動(dòng)化，設(shè)計(jì)師們正試圖利用較為溫暖而不太嚴(yán)肅的內(nèi)部裝飾來使其具有親切感。9.Thedifferencebetweenlibelandslanderisthatlibelisprintedwhileslanderisspoken.9.誹謗和流言的區(qū)別在于前者是書面的，而后者是口頭的。10.Thekneeisthejointswherethethighbonemeetsthelargeboneofthelowerleg.10.膝蓋是大腿骨和小腿脛的連接處。11.Acidsarechemicalcompoundsthat,inwatersolution,haveasharptaste,acorrosiveactiononmetals,andtheabilitytoturncertainbluevegetabledyesred.11.酸是一種化合物，它在溶于水時(shí)具有強(qiáng)烈的氣味和對金屬的腐蝕性，并且能夠使某些藍(lán)色植物染料變紅。12.BillieHoliday’sreputationasagreatjazz-bluessingerrestsonherabilitytogiveemotionaldepthtohersongs.12.BillieHoliday’s作為一個(gè)爵士布魯斯樂杰出歌手的名聲建立在能夠賦予歌曲感情深度的能力。13.Essentially,atheoryisanabstract,symbolicrepresentationofwhatisconceivedtobereality.13.理論在本質(zhì)上是對認(rèn)識了的現(xiàn)實(shí)的一種抽象和符號化的表達(dá)。14.Longbeforechildrenareabletospeakorunderstandalanguage,theycommunicatethroughfacialexpressionsandbymakingnoises.14.兒童在能說或能聽懂語言之前，很久就會通過面部表情和靠發(fā)出噪聲來與人交流了。15.Thankstomodernirrigation,cropsnowgrowabundantlyinareaswhereoncenothingbutcactiandsagebrushcouldlive.15.受當(dāng)代灌溉(技術(shù)設(shè)施)之賜，農(nóng)作物在原來只有仙人掌和蕎屬科植物才能生存的地方旺盛的生長。16.Thedevelopmentofmechanicaltimepiecesspurredthesearchformoreaccuratesundialswithwhichtoregulatethem.16.機(jī)械計(jì)時(shí)器的發(fā)展促使人們尋求更精確的日晷，以便校準(zhǔn)機(jī)械計(jì)時(shí)器。17.Anthropologyisascienceinthatanthropologistsusearigoroussetofmethodsandtechniquestodocumentobservationsthatcanbecheckedbyothers.17.人類學(xué)是一門科學(xué)，因?yàn)槿祟悓W(xué)家采用一整套強(qiáng)有力的方法和技術(shù)來記錄觀測結(jié)果，而這樣記錄下來的觀測結(jié)果是供他人核查的。18.Fungiareimportantintheprocessofdecay,whichreturnsingredientstothesoil,enhancessoilfertility,anddecomposesanimaldebris.18.真菌在腐化過程中十分重要，而腐化過程將化學(xué)物質(zhì)回饋于土壤，提高其肥力，并分解動(dòng)物糞便。19.Whenitisstruck,atuningforkproducesanalmostpuretone,retainingitspitchoveralongperiodoftime.19.音叉被敲擊時(shí)，產(chǎn)生幾乎純質(zhì)的音調(diào)，其音量經(jīng)久不衰。20.AlthoughpecansaremostplentifulinthesoutheasternpartoftheUnitedStates,theyarefoundasfarnorthasOhioandIllinois.20.雖然美洲山河桃樹最集中于美國的東南部但是在北至俄亥俄州及伊利諾州也能看見它們。21.Eliminatingproblemsbytransferringtheblametoothersisoftencalledscape-goating.21.用怪罪別人的辦法來解決問題通常被稱為尋找替罪羊。22.Thechieffoodseateninanycountrydependlargelyonwhatgrowsbestinitsclimateandsoil.22.一個(gè)國家的主要食物是什么，大體取決于什么作物在其天氣和土壤條件下生長得最好。23.Overaverylargenumberoftrials,theprobabilityofanevent’soccurringisequaltotheprobabilitythatitwillnotoccur.23.在大量的實(shí)驗(yàn)中，某一事件發(fā)生的幾率等于它不發(fā)生的幾率。24.Mostsubstancecontractwhentheyfreezesothatthedensityofasubstance’ssolidishigherthanthedensityofitsliquid.24.大多數(shù)物質(zhì)遇冷收縮，所以他們的密度在固態(tài)時(shí)高于液態(tài)。25.Themechanismbywhichbraincellsstorememoriesisnotclearlyunderstood.25.大腦細(xì)胞儲存記憶的機(jī)理并不為人明白。26.Bythemiddleofthetwentiethcentury,paintersandsculptorsintheUnitedStateshadbeguntoexertagreatworldwideinfluenceoverart.26.到了二十一世紀(jì)中葉，美國畫家和雕塑家開始在世界范圍內(nèi)對藝術(shù)產(chǎn)生重大影響。27.IntheeasternpartofNewJerseyliesthecityofElizabeth,amajorshippingandmanufacturingcenter.27.伊麗莎白市，一個(gè)重要的航運(yùn)和制造業(yè)中心，坐落于新澤西州的東部。28.ElizabethBlackwell,thefirstwomanmedicaldoctorintheUnitedStates,foundedtheNewYorkInfirmary,aninstitutionthathasalwayshadacompletelyfemalemedicalstaff.28.ElizabethBlackwell，美國第一個(gè)女醫(yī)生，創(chuàng)建了員工一直為女性紐約診所。29.AlexanderGrahamBelloncetoldhisfamilythathewouldratherberememberedasateacherofthedeafthanastheinventorofthetelephone.29.AlexanderGrahamBell曾告訴家人，他更愿意讓后人記住他是聾子的老師，而非電話的發(fā)明者。30.Becauseitsleavesremaingreenlongafterbeingpicked,rosemarybecameassociatedwiththeideaofremembrance.30.采摘下的迷迭香樹葉常綠不衰，因此人們把迷迭香樹與懷念聯(lián)系在一起。31.Althoughapparentlyrigid,bonesexhibitadegreeofelasticitythatenablestheskeletontowithstandconsiderableimpact.31.骨頭看起來是脆硬的，但它也有一定的彈性，使得骨骼能夠承受相當(dāng)?shù)拇驌簟?2.ThatxenoncouldnotFORMchemicalcompoundswasoncebelievedbyscientists.32.科學(xué)家曾相信：氙氣是不能形成化合物的。33.Researchintothedynamicsofstormsisdirectedtowardimprovingtheabilitytopredicttheseeventsandthustominimizedamageandavoidlossoflife.33.對風(fēng)暴動(dòng)力學(xué)的研究是為了提高風(fēng)暴預(yù)測從而減少損失，避免人員傷亡。34.Theeliminationofinflationwouldensurethattheamountofmoneyusedinrepayingaloanwouldhavethesamevalueastheamountofmoneyborrowed.34.消除通貨膨脹應(yīng)確保還貸的錢應(yīng)與所貸款的價(jià)值相同。35.Futurism,anearlytwentieth-centurymovementinart,rejectedalltraditionsandattemptedtoglorifycontemporarylifebyemphasizingthemachineandmotion.35.未來主義，二十世紀(jì)早期的一個(gè)藝術(shù)思潮。拒絕一切傳統(tǒng)，試圖通過強(qiáng)調(diào)機(jī)械和動(dòng)態(tài)來美化生活。36.OneofthewildestandmostinaccessiblepartsoftheUnitedStatesistheEvergladeswherewildlifeisabundantandlargelyprotected.36.Everglades是美國境內(nèi)最為荒涼和人跡罕至的地區(qū)之一，此處有大量的野生動(dòng)植物而且大多受(法律)保護(hù)。37.LucretiaMott’sinfluencewassosignificantthatshehasbeencreditedbysomeauthoritiesastheoriginatoroffeminismintheUnitedStates.37.LucretiaMott’s的影響巨大，所以一些權(quán)威部門認(rèn)定她為美國女權(quán)運(yùn)動(dòng)的創(chuàng)始人。38.Theactivitiesoftheinternationalmarketingresearcherarefrequentlymuchbroaderthanthoseofthedomesticmarketer.38.國際市場研究者的活動(dòng)范圍常常較國內(nèi)市場研究者廣闊。39.ThecontinentaldividereferstoanimaginarylineintheNorthAmericanRockiesthatdividesthewatersflowingintotheAtlanticOceanfromthoseflowingintothePacific.39.大陸分水嶺是指北美洛磯山脈上的一道想象線，該線把大西洋流域和太平洋流域區(qū)分開來。40.StudiesofthegravityfieldoftheEarthindicatethatitscrustandmantleyieldwhenunusualweightisplacedonthem.40.對地球引力的研究表明，在不尋常的負(fù)荷之下地殼和地幔會發(fā)生位移。41.TheannualworthofUtah’smanufacturingisgreaterthanthatofitsminingandfarmingcombined.41.尤它州制造業(yè)的年產(chǎn)值大于其工業(yè)和農(nóng)業(yè)的總和。42.Thewallflowerissocalledbecauseitsweakstemsoftengrowonwallsandalongstonycliffsforsupport.42.墻花之所以叫墻花，是因?yàn)槠浯嗳醯闹Ω山?jīng)常要靠墻壁或順石崖生長，以便有所依附。43.Itistheinteractionbetweenpeople,ratherthantheeventsthatoccurintheirlives,thatisthemainfocusofsocialpsychology.43.社會心理學(xué)的主要焦點(diǎn)是人與人之間的交往，而不是他們各自生活中的事件。44.NosocialcrusadearousedElizabethWilliams’enthusiasmmorethantheexpansionofeducationalfacilitiesforimmigrantstotheUnitedStates.44.給美國的新移民增加教育設(shè)施比任何社會運(yùn)動(dòng)都更多的激發(fā)了ElizabethWilliams的熱情。45.Quailstypicallyhaveshortroundedwingsthatenablethemtospringintofullflightinstantlywhendisturbedintheirhidingplaces.45.典型的鵪鶉都長有短而圓的翅膀，憑此他們可以在受驚時(shí)一躍而起，飛離它們的躲藏地。46.Accordingtoanthropologists,theearliestancestorsofhumansthatstooduprightresembledchimpanzeesfacially,withslopingforeheadsandprotrudingbrows.46.根據(jù)人類學(xué)家的說法，直立行走的人的鼻祖面部輪廓與黑猩猩相似，額頭后傾，眉毛突出。47.Notuntil1866wasthefullysuccessfultransatlanticcablefinallylaid.47.直到1866年第一條橫跨大西洋的電纜才完全成功的架通。48.Inhiswriting,JohnCroweRansomdescribeswhatheconsidersthespiritualbarrennessofsocietybroughtaboutbyscienceandtechnology.48.JohnCroweRansom在他的著作中描述了他認(rèn)為是由科學(xué)技術(shù)給社會帶來的精神貧困。49.Childrenwithparentswhoseguidanceisfirm,consistent,andrationalareinclinedtopossesshighlevelsofself-confidence.49.父母的教導(dǎo)如果堅(jiān)定，始終如一和理性，孩子就有可能充滿自信。50.TheancientHopewellpeopleofNorthAmericaprobablycultivatedcornandothercrops,buthuntingandgatheringwerestillofcriticalimportanceintheireconomy.50.北美遠(yuǎn)古的Hopewell人很可能種植了玉米和其他農(nóng)作物，但打獵和采集對他們的經(jīng)濟(jì)貿(mào)易仍是至關(guān)重要的。51.UsingmanysymbolsmakesitpossibletoputalargeamountofinFORMationonasinglemap.51.使用多種多樣的符號可以在一張地圖里放進(jìn)大量的信息52.Anarchismisatermdescribingaclusterofdoctrinesandattitudeswhoseprincipalunitingfeatureisthebeliefthatgovernmentisbothharmfulandunnecessary.52.無政府主義這個(gè)詞描述的是一堆理論和態(tài)度，它們的主要共同點(diǎn)在于相信政府是有害的，沒有必要的。53.ProbablynomanhadmoreeffectonthedailylivesofmostpeopleintheUntiedStatesthandidHenryFordapioneerinautomobileproduction.53.恐怕沒有誰對大多數(shù)美國人的日常生活影響能超過汽車生產(chǎn)的先驅(qū)亨利.福特。54.Theuseofwell-chosennonsensewordsmakespossiblethetestingofmanybasichypothesesinthefieldoflanguagelearning.54.使用精心挑選的無意義詞匯，可以檢驗(yàn)語言學(xué)科里許多基本的假定。55.Thehistoryofpaintingisafascinatingchainofeventsthatprobablybeganwiththeveryfirstpicturesevermade.55.優(yōu)化歷史是由一連串的迷人事件組成，其源頭大概可以上溯到最早的圖畫。56.Perfectlymatchedpearls,strungintoanecklace,bringafarhigherpricethanthesamepearlstoldindividually.56.相互般配的珍珠，串成一條項(xiàng)鏈，就能賣到比單獨(dú)售出好得多的價(jià)錢。57.Duringtheeighteenthcentury,LittleTurtlewaschiefoftheMiamitribewhoseterritorybecamewhatisnowIndianaandOhio.57.十八世紀(jì)時(shí)，“小烏龜”是邁阿密部落的酋長，該部落的地盤就是今天的印第安那州和俄亥俄州。58.Amongalmostsevenhundredspeciesofbamboo,somearefullygrownatlessthanafoothigh,whileotherscangrowthreefeetintwenty-fourhours.58.在竹子的近七百個(gè)品種中，有的全長成還不到一英尺，有的卻能在二十四小時(shí)內(nèi)長出三英尺。59.Beforestaringonaseavoyage,prudentnavigatorslearntheseacharts,studythesailingdirections,andmemorizelighthouselocationstopreparethemselvesforanyconditionstheymightencounter.59.謹(jǐn)慎的航海員在出航前，會研究航向，記錄的燈塔的位置，以便對各種可能出現(xiàn)的情況做到有備無患。60.Ofalltheeconomicallyimportantplants,palmshavebeentheleaststudied.60.在所有的經(jīng)濟(jì)作物中，棕櫚樹得到的研究最少。61.Buyersandsellersshouldbeawareofnewdevelopmentsintechnologycananddoesaffectmarketingactivities.61.購買者和銷售者都應(yīng)該留意技術(shù)的新發(fā)展，原因很簡單，因?yàn)榧夹g(shù)能夠并且已經(jīng)影響著營銷活動(dòng)。62.Theapplicationofelectroniccontrolsmadepossiblebythemicroprocessorandcomputerstoragehavemultipliedtheusesofthemoderntypewriter.62.電腦儲存和由于電子微處理機(jī)得以實(shí)現(xiàn)的電控運(yùn)用成倍的增加了現(xiàn)代打字機(jī)的功能。63.Thehumanskeletonconsistsofmorethantwohundredbonesboundtogetherbytoughandrelativelyinelasticconnectivetissuescalledligaments.63.人類骨骼有二百多塊骨頭組成，住些骨頭石油堅(jiān)韌而相對缺乏彈性的，被稱為韌帶的結(jié)蒂組連在一起。64.Thepigmentationofapearlisinfluencedbythetypeofoysterinwhichitdevelopsandbythedepth,temperature,andthesaltcontentofthewaterinwhichtheoysterlives.64.珍珠的色澤受到作為其母體牡蠣種類及牡蠣生活水域的深度，溫度和含鹽度的制約。65.Althoughmockingbirdssuperblymimicthesongsandcallsofmanybirds,theycannonethelessbequicklyidentifiedasmockingbirdsbycertainauralclues.65.盡管模仿鳥學(xué)很多種鳥的鳴叫聲惟妙惟肖，但人類還是能夠依其聲音上的線索很快識別它們。66.Notonlycanwalkingfishliveoutofwater,buttheycanalsotravelshortdistancesoverland.66.鲇魚不僅可以離開水存活，還可以在岸上短距離移動(dòng)。67.Scientistsdonotknowwhydinosaursbecameextinct,butsometheoriespostulatethatchangersingeography,climate,andsealevelswereresponsible.67.科學(xué)家不知道恐龍為何絕種了，但是一些理論推斷是地理，氣候和海平面的變化造成的。68.Thescienceofhorticulture,inwhichtheprimaryconcernsaremaximumyieldandsuperiorquality,utilizesinFORMationderivedfromothersciences.68.主要目的在于豐富和優(yōu)質(zhì)的農(nóng)藝學(xué)利用了其他科學(xué)的知識。69.Snowaidsfarmersbykeepingheatinthelowergroundlevels,therebysavingtheseedsfromfreezing.69.雪對農(nóng)民是一種幫助，因?yàn)樗３值貙油寥赖臏囟?，使種子不致凍死。70.Eventhoughtheprecisequalitiesofheroinliterarywordsmayvaryovertime,thebasicexemplaryfunctionoftheheroseemstoremainconstant.70.歷代文學(xué)作品中的英雄本色雖各有千秋，但其昭世功力卻是恒古不變的。71.Peopleinprehistorictimescreatedpaintsbygrindingmaterialssuchasplantsandclayintopowderandthenaddingwater.71.史前的人們制造顏料是將植物和泥土等原料磨成粉末，然后加水。72.Oftenveryannoyingweeds,goldenrodscrowdoutlesshardyplantsandactashoststomanyinsectpests.72.***花通常令人生厭，它擠走不那么頑強(qiáng)的植物，并找來很多害蟲。73.Startingaround7000B.C.,andforthenextfourthousandyears,muchoftheNorthernHemisphereexperiencedtemperatureswarmerthanatpresent.73.大約從公元前七千年開始，在四千年當(dāng)中，北半球的溫度比現(xiàn)在高。74.WhenHenryFordfirstsoughtfinancialbackingformakingcars,theverynotionoffarmersandclerksowningautomobileswasconsideredridiculous.74.當(dāng)亨利.福特最初制造汽車為尋求資金支持時(shí)，農(nóng)民和一般職員也能擁有汽車的想法被認(rèn)為是可笑的。75.Thoughoncequitelarge,thepopulationofthebaldeagleacrossNorthAmericahasdrasticallydeclinedinthepastfortyyears.75.北美禿頭鷹的數(shù)量一度很多，但在近四十年中全北美的禿頭鷹數(shù)量急劇下降。76.Thebeaverchewsdowntreestogetfoodandmaterialwithwhichtobuilditshome.76.水獺啃倒樹木，以便取食物并獲得造窩的材料。77.Poodleswereonceusedasretrieversinduckhunting,buttheAmericanKennelClubdoesnotconsiderthemsportingdogsbecausetheyarenowprimarilykeptaspets.77.長卷毛狗曾被用作獵鴨時(shí)叼回獵物的獵犬，但是美國KennelClub卻不承認(rèn)它們?yōu)楂C犬，因?yàn)樗鼈儸F(xiàn)在大多數(shù)作為寵物飼養(yǎng)。78.Asaresultofwhatisnowknowinphysicsandchemistry,scientistshavebeenabletomakeimportantdiscoveriesinbiologyandmedicine.78.物理學(xué)和化學(xué)的一個(gè)成果是使得科學(xué)家們能在生物學(xué)和醫(yī)學(xué)上獲得重大發(fā)現(xiàn)。79.ThepracticeofmakingexcellentfilmsbasedonratherobscurenovelshasbeengoingonsolongintheUnitedStatesastoconstituteatradition.79.根據(jù)默默無聞的小說制作優(yōu)秀影片在美國由來已久，已經(jīng)成為傳統(tǒng)。80.Sincetheconsumerconsidersthebestfruittobethatwhichisthemostattractive,thegrowermustprovideproductsthatsatisfythediscerningeye.80.因?yàn)轭櫩驼J(rèn)為最好的水果應(yīng)該看起來也是最漂亮的，所以種植者必須提供能滿足挑剔眼光的產(chǎn)品。81.Televisionthemostpervasiveandpersuasiveofmoderntechnologies,markedbyrapidchangeandgrowth,ismovingintoanewera,aneraofextraordinarysophisticationandversatility,whichpromisestoreshapeourlivesandourworld.81.電視這項(xiàng)從迅速變化和成長為標(biāo)志的最普及和最有影響力的現(xiàn)代技術(shù)，正在步入一個(gè)新時(shí)代，一個(gè)極為成熟和多樣化的時(shí)代，這將重塑我們的生活和世界。82.Televisionismorethanjustanelectronics;itisameansofexpression,aswellasavehicleforcommunication,andassuchbecomesapowerfultoolforreachingotherhumanbeings.82.電視不僅僅是一件電器；它是表達(dá)的手段和交流的載體并因此成為聯(lián)系他人的有力工具。83.Evenmoreshockingisthefactthatthenumberandrateofimprisonmenthavemorethandoubledoverthepasttwentyyears,andrecidivism------thatistherateforre-arrest------ismorethan60percent.83.更讓人吃驚的事實(shí)是監(jiān)禁的數(shù)目和比例在過去的二十年中翻了一番還有余，以及累犯率——即再次拘押的比例——為百分之六十強(qiáng)。84.WilliamRaineyHarperluredhimtothenewuniversityof84.他的教書生涯始于麻省理工學(xué)院，但是WilliamRaineyHarper把他吸引到了新成立的芝加哥大學(xué)。他在那里正式任職長達(dá)整整一代人的時(shí)間。他的高級作文課上的學(xué)生覺得他在課上古板得可怕，但私下交流卻富有同情和理解。85.Theslothpayssuchlittleattentiontoitspersonalhygienethatgreenalgaegrowonitscoarsehairandcommunitiesofaparasiticmothliveinthedepthsofitscoatproducingcaterpillarswhichgrazeonitsmouldyhair.Itsmusclesaresuchthatitisquitsincapableofmovingataspeedofoverakilometeranhourevenovertheshortestdistancesandtheswiftestmovementitcanmakeisasweepofitshookedarm.85.樹獺極不講究衛(wèi)生，以至于它粗糙的毛發(fā)上生出綠苔，成群的寄生蛾生長在它的皮毛深處，變成毛毛蟲，并以它的臟毛為食。她的肌肉不能讓他哪怕在很短的距離以內(nèi)以每小時(shí)一公里的速度移動(dòng)。它能做的最敏捷的動(dòng)作就是揮一揮它彎曲的胳膊。86.Artificialflowersareusedforscientificaswellasfordecorativepurposes.Theyaremadefromavarietyofmaterials,suchaswayandglass,soskillfullythattheycanscarcelybedistinguishedfromnaturalflowers.86.人造花卉即可用于科學(xué)目的，也可用于裝飾目的，它們可以用各種各樣的材料制成，臂如蠟和玻璃；其制作如此精巧，幾乎可以以假亂真。87.ThreeyearsofresearchatanabandonedcoalmineinArgonne,Illinois,haveresultedinfindingsthatscientistsbelievecanhelpreclaimthousandsofminedisposalsitesthatscarthecoal-richregionsoftheUnitedStates.87.在伊利諾州Angonne市的一個(gè)廢棄煤礦的三年研究取得了成果，科學(xué)家們相信這些成果可以幫助改造把美國產(chǎn)煤區(qū)弄得傷痕累累的數(shù)千個(gè)舊煤場。88.Whenthepersuadingandtheplanningforthewesternrailroadshadfinallybeencompleted,thereallychallengingtaskremained:thedangerous,sweaty,backbreaking,brawlingbusinessofactuallybuildingthelines.88.當(dāng)有關(guān)西部鐵路的說服和規(guī)劃工作終于完成后，真正艱難的任務(wù)還沒有開始；即危險(xiǎn)，吃力，需要傷筋動(dòng)骨和吵吵嚷嚷的建造這些鐵路的實(shí)際工作。89.Becauseofthespacecrunch,theArtMuseumhasbecomeincreasinglycautiousinconsideringacquisitionsanddonationsofart,insomecasespassingupopportunitiestostrengtheniscollections.89.由于空間不足，藝術(shù)博物館在考慮購買和接受捐贈的藝術(shù)品是越來越慎重，有些情況下放棄其進(jìn)一步改善收藏的機(jī)會。90.TheUnitedStatesConstitutionrequiresthatPresidentbeanatural-borncitizen,thirty-fiveyearsofageorolder,whohaslivedintheUnitedStatesforaminimumoffourteenyears.90.美國憲法要求總統(tǒng)是生于美國本土的公民，三十五歲以上，并且在美國居住了至少十四年。91.AridregionsinthesouthwesternUnitedStateshavebecomeincreasinglyinvitingplaygroundsforthegrowingnumberofrecreationseekerswhoownvehiclessuchasmotorcyclesorpoweredtrailbikesandindulgeinhill-climbingcontestsorincavingnewtrailsinthedesert.91.美國西部的不毛之地正成為玩耍的地方，對越來越多擁有摩托車或越野單車類車輛的，喜歡放縱于爬坡比賽或開辟新的沙漠通道的尋歡作樂者具有不斷增長的吸引力。92.Stonedoesdecay,andsotoolsoflongagohaveremainedwheneventhebonesofthemanwhomadethemhavedisappearedwithouttrace.92.石頭不會腐爛，所以以前的(石器)工具能保存下來，雖然它們的制造者已經(jīng)消失的無影無蹤。93.Insectswouldmakeitimpossibleforustoliveintheworld;theywoulddevourallourcropsandkillourflocksandherds,ifitwerenotfortheprotectionwegetfrominsect-eatinganimals.93.昆蟲就將會使我們無法在這個(gè)世界上居?。蝗绻覀儧]有受到以昆蟲為食的動(dòng)物的保護(hù)，昆蟲就會吞嚼掉我們所有的莊稼并殺死我們飼養(yǎng)的禽獸。94.Itistruethatduringtheirexplorationstheyoftenfaceddifficultiesanddangersofthemostperilousnature,equippedinamannerwhichwouldm