Small But Wise m very excited because were going to be seeing parts of the universe that we havent seen before,said Ned Wright, a scientist who directs the WISE project. The pictures taken by WISE wont be like everyday digital photographs,however. WISE stands forWide-field Infrared Survey Explorer.As its name suggests,the WISE camera takes pictures of features that give off infrared radiation6. Waves of infrared radiation are longer than waves of visible light, so ordinary digital cameras dont see them,and neither do the eyes of human beings. Although invisible to the eye,longer infrared radiation can be detected as warmth by the skin. Brown dwarfs8 are another kind of deep-space object that will show up in WISEs pictures. These objects arefailed stars 一which means they are not massive enough to jump start9 the same kind of reactions that power stars such as the sun. Instead,brown dwarfs simply shrink and cool down. Theyre so dim that theyre almost impossible to see with visible light, but in the infrared spectrum they glow. trashcan n.垃圾箱 asteroid n.小行星 注释: Administration 3. faint stars, blazing galaxies: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。 5. lap:一圈。原指竞赛场的一圈或游泳池的一个来回,如: She overtook the other runners on the last lap. 她最后一圈超过了其他参赛者。 7. spectrum of light:光谱,即,光辐射的波长分布区域。 9.jump start: 启动 1 .What is so special about WISE? B It is as small as a trashcan. D Never before has a telescope carried a digital camera in space. A make. C take 3. The camera on WISE B does not see infrared radiation while the ordinary camera does. D reflects light that human eyes can see. A Asteroids float through space giving off visible light. C It is difficult to take asteroids pictures by ordinary cameras, 5.What is implied in the last paragraph? B Brown dwarfs give off infrared radiation. D Brown dwarfs are impossible to see with the WISE telescope. 1. 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,所以能够帮助天文学家观测到宇宙空间中的未知天文现象。其他选项都不是短文表达的意思。 3. C 短文第六段和第四段提供了答案。人类的肉眼和普通相机看到的光是visible lights ,看不见红外线辐射 ,而WISE 的相机能够看到。 5. B 最后一段的第一句说,褐矮星能出现在WISE 照片中,根据上文对WISE 望远镜的描述只有WISE 望远镜才能拍到红外线射线,所以B是正确选择。
体坛英语资讯:Flamengo beats Americano 2-0
体坛英语资讯:Spains cyclist Garcia banned two years for doping
体坛英语资讯:Italian soccer needs revamp, says World Cup winner
体坛英语资讯:AC Milan to sign Juventus defender
体坛英语资讯:Real Madrid confirm Adebayor signing
体坛英语资讯:Barca coach Guardiola insists league title is not won yet
体坛英语资讯:Santos humble Sao Paulo 2-0
体坛英语资讯:Sochi 2014 Winter Olympics construction chief resigns
体坛英语资讯:Li Na beats world No.1 Wozniacki in Australia Open
体坛英语资讯:Japan defeats South Korea in ice hockey preliminary at Asian Winter Games
体坛英语资讯:Real Madrid lose to fall seven points behind Barcelona
体坛英语资讯:Zvonareva beats Safarova, eyes 3rd straight Slam final
体坛英语资讯:Bordeaux sacks striker Maazou on hostile remarks
体坛英语资讯:Memphis Grazzliess Mayo suspended 10 games for positive test
体坛英语资讯:Greek organizers of Special Olympics confident of hosting best Games ever
体坛英语资讯:Zambian boxer Unifies WIBA and WIBO light welterweight titles
体坛英语资讯:AC Milan signs Mark Van Bommel from Bayern Munich
体坛英语资讯:Glimpse of hope for China to book Olympic womens soccer berth
体坛英语资讯:Bundesliga club Wolfsburg sign Mbokani and Lakic
体坛英语资讯:Iniesta may skip Spanish Cup with back sprain
体坛英语资讯:AC Milan signs left-back from Espanyol
体坛英语资讯:Leverkusen jumps on second of German Bundesliga
体坛英语资讯:Nadal out, Murray, Zvonareva, Clijsters advance
体坛英语资讯:Real Madrid to transfer Diarra to Monaco
体坛英语资讯:Barcelona all but asure place in Copa del Rey final
体坛英语资讯:Benzema heroic as Madrid graft win over Mallorca
体坛英语资讯:Milan move four points clear with 2-0 win over Cesena
体坛英语资讯:Real Madrid close to Copa del Rey final after win in Sevilla
体坛英语资讯:Dutch striker Babel completes move from Liverpool to Hoffenheim
体坛英语资讯:South American Championship under-20 final begins
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |