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理工阅读(a级)1. 如何抓住文章中心 (提问中有mainly mostly)1. 文章的中心思想第一句(如是否定应在第二句),如第二句是 but, :冒号“.”, (破折号), today,this day,now,so,yet,therefore,however,new.应在第二句以后。2. 第二段第一句是 but,“.”, (破折号),today,this day,now,so,yet,therefore,however,new.应在第二段。不要把希望全部寄托在技巧上(找长的像的),查字典能读还是读一下。第四五篇 small but wise 理工(a级) 小而聪明on december 14, nasa1 blasted 特别a small but mighty telescope into space. the telescope is called wise and is about as wide around as a trashcan. dont let its small size fool you: wise has a powerful digital camera, and it will be taking pictures of some the wildest objects2 in the known universe, including asteroids, faint stars, blazing galaxies3 and giant clouds of dust where planets and stars are born.12月14日,美国国家航空航天局发射了一个体积小而威力大的望远镜,它的名字叫“wise”(聪明),大约只有一个垃圾盒子那么宽。你可千万不要轻视这个小东西,wise可是一款高强数码相机,它将在人类已知的宇宙里拍摄任何你所能想到的天体,包括小行星、那些只能看到微弱的光和因燃烧而无法观察的天体,以及自行星和恒星诞生以来的巨大尘埃云。im 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.ned wright是主持wise项目的科学家,他说:“我十分兴奋,因为我们就要看到以前从未看到过的那部分宇宙”。since arriving in space, the wise telescope has been circling the earth, held by gravity in a polar orbit4(this means it crosses close to the north and south poles with each lap5). its camera is pointed outward, away from the earth, and wise will snap a picture of a different part of the sky every 11 minutes. after six months it will have taken pictures across the entire sky.到达宇宙空间后,wise由于受极地轨道重力作用,一直在围绕地球旋转。(这意味着,每转一圈,它就离南极和北极靠近)。它的镜头是向外的,远离地球。每11分钟wise就会抓拍天空一个不同的部分。六个月之后,它将把整个天空拍摄完毕。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.然而,wise拍摄的相片不会像我们日常的数码相片。wise是wide-field infrared survey explorer (广域红外勘测探测器)的缩写。正如名字所示,wise能拍到发出红外线辐射物体的相片。radiation is energy that travels as a wave. visible light, including the familiar spectrum of light7 that becomes visible in a rainbow, is an example of radiation. when an ordinary digital camera takes a picture of a tree, for example, it receives the waves of visible light that are reflected off the tree. when these waves enter the camera through the lens, theyre processed by the camera, which then puts the image together.辐射是波浪状行进的一种能量。人能看到的光,包括大家熟悉的、在彩虹里看到的光谱就是射线的一个例子。当普通的数码相机给一棵树照相时,它能接收到树反射回来的、可见的光波。光波通过镜头进入到相机里,相机对它进行加工,然后把图像合成。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.红外线的波长比可见光长,所以,普通的数码相机捕捉不到他们,人眼也看不到这种射线。尽管人们看不到,人的皮肤能感受到较长红外线带来的温暖。thats a key idea to why wise will be able to see things other telescopes cant. not everything in the universe shows up in visible light. asteroids, for example, are giant rocks that float through space 一but they absorb most of the light that reaches them. they dont reflect light, so theyre difficult to see. but they do give off infrared radiation, so an infrared telescope like wise will be able to produce images of them. during its mission wise will take pictures of hundreds of thousands of asteroids.这就是为什么wise能捕捉到其他望远镜看不到的物体的主要原因。宇宙中,不是所有的东西都以可见光的方式呈现出来。例如,小行星是在太空中漂浮的大岩石,但是小行星吸收射到他们表面的大部分光。他们不能反射光,所以要看到他们很困难。但他们却释放出红外线,所以,像wise这样的红外线望远镜才能够捕捉到它们的图像。wise的任务就是拍摄成千上万的小行星图像。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光谱they glow. wise的另一任务是为另外一种太空深处的天体一褐矮星拍照。这种天体是“失败的”恒星,它们是一些不够大,不能像太阳的能量那样启动相同的反应。褐矮星只能缩小和冷却。他们发出的光如此之微弱,人们根本看不到,但是在线外频谱中,它们是发光的。练习:1. what is so special about wise?关于wise有什么特别的?a. it is small in size but carries a large camera.b. it is as small as a trashcan.c. its digital camera can help astronomers to see the unknown space.d. never before has a telescope carried a digital camera in space.围着中心转(先读有中心词的选项. 一般就是答案)2. which is not the synonym for the word snap in the third paragraph?下面哪个词不是snap的同义词?a . make. b. shoot. c. take d. photograph.变态题狂3. the camera on wisea. is no different from an ordinary camera.b. does not see infrared radiation while the ordinary camera does.c. catches the infrared radiation while the ordinary camera does not.d. reflects light that human eyes can see.wise上的照相机4. which of the following is not correct about asteroids according to paragraph 7?根据第七段,关于“asteroids”下面哪一个是不正确的?a. asteroids float through space giving off visible light.b. asteroids do not reflect light that reaches them.c. it is difficult to take asteroids pictures by ordinary cameras.d. the wise telescope can take pictures of asteroids不好做5. what is implied in the last paragraph?最后一段暗示了什么?a. brown dwarfs give off visible light.b. brown dwarfs give off infrared radiation.c. brown dwarfs are power stars like the sun.d. brown dwarfs are impossible to see with the wise telescope.词汇:trashcan / tr,kn/n垃圾箱infrared/infrred/ adj红外线asteroid/strid/ n.小行星dwarf/dw:f/ n. 矮星注释:1.nasa (美国国家航空航天局)是缩写词,全称是national aeronautics and spaceadministration2. the wildest objects :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. 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。4. polar orbit: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: she overtook the other runners on the last lap. 她最后一圈超过了其他参赛者。6. infrared radiation:红外线辐射7. spectrum of light:光谱,即,光辐射的波长分布区域。8. brown dwarfs: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.jump start: 启动答案与题解: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(in the known universe)的未知天文现象。其他选项都不是短文表达的意思。2. a snap 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shoot, take和photograph都是snap的同义词。3. c 短文第六段和第四段提供了答案。人类的肉眼和普通相机看到的光是visible lights,看不见红外线辐射( infrared radiation) ,而wise 的相机能够看到。4. a 短文第七段第二句说并非所有的宇宙中的物体都会发出可见光,比如asteroids ,所以a是正确选项。其他选项的内容都可以在该段中找到。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。第四十五篇 小而聪明12月14日,美国国家航空航天局发射了一个体积小而威力大的望远镜,它的名字叫“wise”(聪明),大约只有一个垃圾盒子那么宽。你可千万不要轻视这个小东西,wise可是一款商强数码相机,它将在人类已知的宇宙里拍摄任何你所能想到的天体,包括小行星、那些只能看到微弱的光和因燃烧而无法观察的天体,以及自行星和恒星诞生以来的巨大尘埃云。ned wright是主持wise项目的科学家,他说:

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