新概念第四冊(cè)課文翻譯及學(xué)習(xí)筆記 Lesson35全套

新概念第四冊(cè)課文翻譯及學(xué)習(xí)筆記：Lesson35【課文】Firstlistenandthenanswerthefollowingquestion.聽(tīng)錄音，然后回答以下問(wèn)題。WhenwillitbepossibleforustothinkseriouslyaboutcolonisingMars?TheMoonislikelytobecometheindustrialhuboftheSolarSystem,supplyingtherocketfuelsforitsships,easilyobtainableformthelunarrocksinthefromofliquidoxygen.Thereasonliesinitsgravity.BecausetheMoonhasonlyaneightiethoftheEarth'smass,itrequires97percentlessenergytotravelthequarterofamillionmilesfromtheMoontoEarth-orbitthanthe200mile-journeyfromEarth'ssurfaceintoorbit!Thismaysoundfantastic,butitiseasilycalculated.ToescapefromtheEarthinarocket,onemusttravelatsevenmilespersecond.ThecomparablespeedfromtheMoonisonly1.5milespersecond.BecausethegravityontheMoon'ssurfaceisonlyasixthofEarth's(rememberhoweasilytheApolloastronautsboundedalong),ittakesmuchlessenergytoacceleratetothat1.5milespersecondthanitdoesonEarth.Moon-dwellerswillbeabletoflyinspaceatonlythreepercentofthecostofsimilarjourneysbytheirterrestrialdwellerswillbeabletoflyinspaceatonlythreepercentofthecostofsimilarjourneysbytheirterrestrialcousins.ArthurC.Clarkoncesuggestedarevolutionaryideapassesthroughthreephases:1'It'simpossible--don'twastemytime.'2'It'spossible,butnotworthdoing.'3'Isaiditwasagoodideaallalong.'TheideaofcolonisingMars--aworld160timesmoredistanttimetheMoon--willmovedecisivelyfromthesecondphasetothethird,whenasignificantnumberofpeoplearelivingpermanentlyinspace.Marshasanextraordinaryfascinationforwould-bevoyagers.America,RussiaandEuropearefilledwithenthusiasts--manyofthemseriousandseniorscientists--whodreamofsendingpeopletoit.Theiraimisunderstandable.ItistheoneworldintheSolarSystemthatismostliketheEarth.Itisaworldofredsandydeserts(henceitsname--theRedPlanet),cloudlessskies,savagesandstorms,chasmswiderthantheGrandCanyonandatleastonemountainmorethantwiceastallasEverest.Itseemsidealforsettlement.7DAYS,February19,1989【Newwordsandexpressions生詞和短語(yǔ)】hubn.(活動(dòng)的)中心lunaradj.月球的oxygenn.氧氣Apollon.阿波羅acceleratev.加速terrestrialadj.地球的permanentlyadv.永遠(yuǎn)地fascinationn.魅力senioradj.資歷深的，年長(zhǎng)的chasmn.斷層，裂口canyonn.峽谷【課文注釋】1.obtainableadj.能獲得的，可得到的，能達(dá)到的例句：Arehisrecordsstillobtainable?他的唱片還能買到嗎?Thetimetableisobtainablepost-freefromtheairlineoffice.航班時(shí)刻表可以向航空公司免費(fèi)索取。2.thecomparablespeedfromtheMoon從月球出發(fā)相應(yīng)的速度，這里是指擺脫月球引力所需達(dá)到的速度。3.theApolloastronauts指1969年7月20日美國(guó)“阿波羅11號(hào)”宇宙飛船第一次載人登月球。4.acceleratev.加速例句：Ourpresenttaskistoaccelerateeconomicgrowth.加速經(jīng)濟(jì)發(fā)展是我們當(dāng)前的任務(wù)。Wewillacceleratethereformofthefinancialsystemunderthesecircumstances.在這一背景情況下，我們將加快金融體制改革?！驹~義辨析】quicken,accelerate,hasten,hurry,rush,speed這些動(dòng)詞均含“加快，使加快”之意。quicken:普通用詞，指增加速度、速率。accelerate:著重指頻率或速率運(yùn)轉(zhuǎn)加快。hasten:指由于事的緊迫性或突然性而加速。hurry:指趕緊或匆忙地做某事或催促別人做某事，隱含草率或混亂意味。rush:含義與hurry相近，但顯得更倉(cāng)促更慌亂。speed:側(cè)重實(shí)際的快速行動(dòng)，常用詞組是speedup。5.atthecostof以……為代價(jià)例句：Hesavedthegirlfromdrowningatthecostofhisownlife.他舍身把溺水的姑娘救出來(lái)。6.revolutionaryadj.革命的例句：Hisheartglowswithrevolutionaryenthusiasm.他心中充滿著革命的熱情。Weshallcarryforwardtherevolutionarytradition.我們應(yīng)該發(fā)揚(yáng)革命傳統(tǒng)。7.theideaofcolonisingMars征服火星計(jì)劃8.decisivelyadv.決然地，果斷地例句：Wehadnochoicebuttoactdecisively.這次不果斷處理不行。9.would-bevoyagers未來(lái)的星際旅客10.seniorscientists資深科學(xué)家senioradj.①地位較高的例句：Heisseniortome,thoughheisyounger.他地位比我高，雖然他比我年輕。②高級(jí)的例句：Shewasunfitforsuchaseniorposition.她不能勝任這樣的高級(jí)職位。③年長(zhǎng)的例句：Althoughheisseniortohiswife,heisinferiortoherinsalary.雖然他年長(zhǎng)于他的妻子，但他妻子的收入比他高。④資深的例句：Aseniormemberofthecommitteeisauthorizedtoactforthechairmanduringhisabsence.主席不在時(shí)，授權(quán)委員會(huì)中的一位資深委員代理他的職務(wù)。11.theGrandCanyon指位于美國(guó)亞利桑那州西北部的科羅拉多河的大峽谷?！緟⒖甲g文】月球很可能成為太陽(yáng)系的工業(yè)中心。從月球上的巖石中很容易提煉出液態(tài)氧，作為航天飛船的燃料。其原因在于月球的重力。因?yàn)樵虑虻闹刂挥械厍虻?/8，因此，從月球到地球的25萬(wàn)英里所消耗的能量要比從地球表面進(jìn)入地球軌道的200英里所耗能量少97%。這點(diǎn)聽(tīng)起來(lái)令人難以置信，但卻很容易計(jì)算出來(lái)。要乘坐一枚火箭飛離地球，火箭的速度要達(dá)到每秒7英里，而從月球出發(fā)的相應(yīng)速度是每秒1.5英里。由于月球表面的重力僅是地球表面的1/6--還記得阿波羅飛船中的宇航員輕松地跳躍--在月球上加速到每秒1.5英里比在地球上所用能源要少得多。月球居民在太空遨游的費(fèi)用僅是地球上朋友飛越同樣路所需費(fèi)用的3%。亞瑟.C.克拉克曾提議，一種創(chuàng)新的想法要經(jīng)過(guò)以下3個(gè)階段：1“根本不可能，不要浪費(fèi)我的時(shí)間?！?“可能，但不值得做。”3“我一直說(shuō)這是個(gè)好想法?！比绻邢喈?dāng)數(shù)量