职称英语理工A新增文章整理含答案及翻译Word文档格式.docx
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职称英语理工A新增文章整理含答案及翻译Word文档格式.docx
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mveryexcitedbecausewe'
regoingtobeseeingpartsoftheuniversethatwehaven'
tseen
before,"
saidNedWright,ascientistwhodirectstheWISEproject.
Sincearrivinginspace,theWISEtelescopehasbeencirclingtheEarth,heldbygravityina
polarorbit4(thismeansitcrossesclosetothenorthandsouthpoleswitheachlap5).Itscamerais
pointedoutward,awayfromtheEarth,andWISEwillsnapapictureofadifferentpartofthesky
every11minutes.Aftersixmonthsitwillhavetakenpicturesacrosstheentiresky.
ThepicturestakenbyWISEwon'
tbelikeeverydaydigitalphotographs,however.WISE
standsfor"
Wide-fieldInfraredSurveyExplorer."
Asitsnamesuggests,theWISEcameratakes
picturesoffeaturesthatgiveoffinfraredradiation6.
Radiationisenergythattravelsasawave.Visiblelight,includingthefamiliarspectrumof
light7thatbecomesvisibleinarainbow,isanexampleofradiation.Whenanordinarydigital
cameratakesapictureofatree,forexample,itreceivesthewavesofvisiblelightthatarereflectedoffthetree.Whenthesewavesenterthecamerathroughthelens,they'
reprocessedbythecamera,whichthenputstheimagetogether.
Wavesofinfraredradiationarelongerthanwavesofvisiblelight,soordinarydigitalcameras
don'
tseethem,andneitherdotheeyesofhumanbeings.Althoughinvisibletotheeye,longer
infraredradiationcanbedetectedaswarmthbytheskin.
That'
sakeyideatowhyWISEwillbeabletoseethingsothertelescopescan'
t.Not
everythingintheuniverseshowsupinvisiblelight.Asteroids,forexample,aregiantrocksthat
floatthroughspace一buttheyabsorbmostofthelightthatreachesthem.Theydon'
treflectlight,sothey'
redifficulttosee.Buttheydogiveoffinfraredradiation,soaninfraredtelescopelikeWISEwillbeabletoproduceimagesofthem.DuringitsmissionWISEwilltakepicturesof
hundredsofthousandsofasteroids.
Browndwarfs8areanotherkindofdeep-spaceobjectthatwillshowupinWISE'
spictures.
Theseobjectsare"
failed"
stars一whichmeanstheyarenotmassiveenoughtojumpstart9the
samekindofreactionsthatpowerstarssuchasthesun.Instead,browndwarfssimplyshrinkand
cooldown.They'
resodimthatthey'
realmostimpossibletoseewithvisiblelight,butinthe
infraredspectrumtheyglow.
词汇:
trashcan/'
træ
ʃ,kæ
n/n.垃圾箱
infrared/'
infrə'
red/adj.红外线
asteroid/'
æ
stərɔid/n.小行星
dwarf/dwɔ:
f/n.矮星
注释:
1.NASA(美国国家航空航天局)是缩写词,全称是NationalAeronauticsandSpace
Administration
2.thewildestobjects:
任何你能想象得到的天体。
wild有“未被人驯养的”“荒唐的”“离奇的”意思。
3.faintstars,blazinggalaxies:
指的是那些只能看到微弱的光和因燃烧而无法观察到的天体。
4.polarorbit:
极地轨道。
指轨道平面与赤道面夹角为90。
的人造地球卫星轨道。
人造卫星运行时能到达南北极区上空,即卫星能飞经全球范围的上空。
需要在全球范围内进行观测和应用的气象卫星、导航卫星、地球资源卫星等都采用这种轨道。
5.lap:
一圈。
原指竞赛场的一圈或游泳池的一个来回,如:
Sheovertooktheotherrunnersonthelastlap.她最后一圈超过了其他参赛者。
6.infraredradiation:
红外线辐射
7.spectrumoflight:
光谱,即,光辐射的波长分布区域。
8.Browndwarfs:
褐矮星。
褐矮星非常暗淡,很难发现它们,要确定它们的大小就更加困难。
9.jumpstart:
启动
练习:
1.WhatissospecialaboutWISE?
AItissmallinsizebutcarriesalargecamera.
BItisassmallasatrashcan.
CItsdigitalcameracanhelpastronomerstoseetheunknownspace.
DNeverbeforehasatelescopecarriedadigitalcamerainspace.
2.WhichisNOTthesynonymfortheword"
snap"
inthethirdparagraph?
Amake.
Bshoot.
Ctake
Dphotograph.
3.ThecameraonWISE
Aisnodifferentfromanordinarycamera.
Bdoesnotseeinfraredradiationwhiletheordinarycameradoes.
Ccatchestheinfraredradiationwhiletheordinarycameradoesnot.
Dreflectslightthathumaneyescansee.
4.WhichofthefollowingisNOTcorrectabout"
asteroids"
accordingtoparagraph7?
AAsteroidsfloatthroughspacegivingoffvisiblelight.
BAsteroidsdonotreflectlightthatreachesthem.
CItisdifficulttotakeasteroids'
picturesbyordinarycameras,
DTheWISEtelescopecantakepicturesofasteroids
5.Whatisimpliedinthelastparagraph?
ABrowndwarfsgiveoffvisiblelight.
BBrowndwarfsgiveoffinfraredradiation.
CBrowndwarfsarepowerstarslikethesun.
DBrowndwarfsareimpossibletoseewiththeWISEtelescope.
+第四十六篇
AntsHaveBigImpactonEnvironmentas"
EcosystemEngineers"
ResearchbytheUniversityofExeter1hasrevealedthatantshaveabigimpactontheirlocalenvironmentasaresultoftheiractivityas"
ecosystemengineers"
andpredators.Thestudy,publishedintheJournalofAnimalEcology,foundthatantshavetwo
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