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1、第四+五篇 SallBut WisenDceber 4,NAS1 blate smallbut mghty elescope nto spce. Te tlesopis aled SE an iou wid rond arashcan. Dont ltissl siz fol you: ISE as a poerful digita cara， ad t l takg pctures ofsome he wildest oects2n the known univere, incudng asteris, nt sar, bazin galaxies3 andgant clud of dus
2、whre lants and stars ar bon.m vry ecedease rgonto b seeing parts ofthe univre tha whven seeneor, aid Ned Wght, a scintist who directstheWSE precincrriving n spe, te WISE telescope asbenicinthe arth,dy graviy in a polar obit4 (thi measit crosse closeto the north and sthpoes wih ahap5) s cra nted utwa
3、d, away fro the Eath， ndWISE ll snap a pce adffent part of th sky evry minute. Aer six n it willave tak icures across h entir y.The cturs an b WI ont b like evrya diitalhotgraphs, howevr. WEstands frWid-feldInfrred SueyEplorer.As isame suggess,the WISEceratake pcresof ftures tatgief inraed aiation6.
4、Radiain s eney tht telsas a ave Visile igh, includig t amiliar pectrum ofliht7 tt beoes sible in ribow,san exl of rition Whn an ornry dial aera takes piture o a tee, fo exaple, t revs te wavs of visble iht tat re lctedoff e ee hn tesave ente the camera hrg he lns, theyr proessed theamer, hic e puts
5、e image tgehe.Waves ifrared rdiaio arelongerthan avs of viibe lt， o ordiarydigial cameras dont se he，an eter do te eye of humn egs. Altoug nviible t th ye， er ifar radiaion c edte a wrmth y te skinThats a keyide to why IE willbe le o see tigsoer telscops . o eveyhn i the unvrse sows pin visible lght
6、.Asterods，forexapl， aegiant rks tat oathrugh sae buty bsrb motof the ligt tt eahes tm Thy nt reflec light, so heyediicu to ee. But they doveofinfre radiatio,o an infrard eescpik WSE will able to prodce images of t.Dui its msi WIE l ake ictur o hunreds othousndofaoidsBron waf r another kind f dep-spc
7、e oet thtll sh u n IEpictesThese objets arefaild sas hich men tey are nt msive engh to umstart9 h s kind of ectisth powr st such a te sn.Instad,ron dwarfs simply hrnk and cool dow Theyr sodimthttheyrealmost imossiblt see with visibl light， bu n the ifrared spctrumthy glw.词汇：racan / t,kn/n垃圾箱infrared
8、infreadj红外线aseroidstr n小行星w/dw:f/ n.矮星注释：1.NAS （美国国家航空航天局)是缩写词,全称是Natonl eonutis andSpace dminstration。2tewldesobjts: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。. faitstrs, lzinggalaie:指的是那些只能看到单薄的光和因燃烧而无法观测到的天体。4. polarrbit: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。人造卫星运营时能达到南北极区上空，即卫星能飞经全球范畴的上空。需要在全球范畴内进行观测和应用的气象卫
9、星、导航卫星、地球资源卫星等都采用这种轨道。5. ap：一圈。原指竞赛场的一圈或游泳池的一种来回，如： Se oertok te her runrson the last lap.她最后一圈超过了其她参赛者。. ifrared radtin：红外线辐射7. specrum of lg：光谱，即，光辐射的波长分布区域。8. Bown drfs:褐矮星。褐矮星非常暗淡,很难发现它们,要拟定它们的大小就更加困难。9.jum star: 启动练习：.Wat s s speciaauWISE?A It is sall isize but carriesa largeamraB ss mal as a t
10、rashcan. ts digtal amera cahel atrnmrs to sethe unknownsceDNeer bfore as a telo carieda digitalcamer in space2. Whch is NOTthe oym for the wd napin te thrd pararap?A make.B shoo ake.D photoraph.3. he amera n WSE i no diffntfo n ordinaryceraB oes t e infrad adation wle therdinr cmeradC catce th ifrad
11、 radiatonwhil trdiarycmea does no.D rflcts ligt tat ua eys ca ee4 Whichf hefolloig crrec aou atoids acordin to paarp 7？A Asteroidsfloat through pcgin off visibl ight.B Ateroids o not reflectlight th eacheshem.C It difficlt t tk astroid ces rdnary cmras,D The WISE lececantake picturef asteoid.ha s im
12、pliedinth st paragraph?A ron dwarf give of visiblghtB rown dwarfs e offinfrd radiatio.C Brwdwrsaepowr stars ikete su.D Bro darfare mpsbe sewit th ISE lescope.答案与题解：. C 短文的第一和第二段提供了答案。WISE的特殊之处就在于,虽然体积小，但它的数码相机能拍到任何天体,因此可以协助天文学家观测到宇宙空间中( i the ownuniverse ）的未知天文现象。其她选项都不是短文体现的意思。 A nap 是个多义词，可以解释为“拍照”，更为确切的意思是“拍快照”。这里shot, tak和phoraph 都是snp 的同义词。3 C 短文第六段和第四段提供了答案。人类的肉眼和一般相机看到的光是viil ligh ，看不见红外线辐射( infrare ada
