Small But Wise
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.
The pictures taken by WISE wont be like everyday digital photographs, however. WISE stands for Wide-field Infrared Survey Explorer. As its name suggests, the WISE camera takes pictures of features that give off infrared radiation.
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 dwarfs are another kind of deep-space object that will show up in WISEs pictures. These objects are failed stars-which means they are not massive enough to jump start 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.
A. It is small in size but carries a large camera.
C. Its digital camera can help astronomers to see the unknown space.
32. Which is NOT the synonym for the word snap in the third paragraph?
B. shoot.
D. photograph.
A. is no different from an ordinary camera.
C. catches the infrared radiation while the ordinary camera does not.
34. Which of the following is NOT correct about asteroids according to paragraph 7?
B. Asteroids do not reflect light that reaches them.
D. The WISE telescope can take pictures of asteroids
A. Brown dwarfs give off visible light.
C. Brown dwarfs are power stars like the sun.
参考答案: CACAB
2014年英语六级考试最后冲刺必备词汇(4)
英语六级考试听力常考词汇(6)
英语六级听力必备词汇:60组习语(1)
英语六级常考重点词组(2)
英语六级考试必备:重点词语(1)
英语六级核心词汇记忆 J
2014年12月英语六级冲刺必备词汇
英语六级常见搭配词组总结
英语六级考试听力常考词汇(3)
大学英语六级听力高频词汇总结
2014英语六级考试必备词汇:名词
英语六级考试必备:重点词语(2)
英语六级听力必备词汇:60组习语(5)
英语六级考试听力常考词汇(2)
英语六级考试听力常考词汇(1)
2014年英语六级考试最后冲刺必备词汇(5)
英语六级重点词汇一览(5)
2014英语六级考试必备词汇:短语
2014年英语六级考试必背短语
英语六级考试常见的短语take
英语六级重点词汇一览(3)
2014年英语六级考试最后冲刺必备词汇(2)
英语六级考试词汇精选
英语六级听力必备词汇:60组习语(4)
2014英语六级考试必备词汇:形容词
英语六级重点词汇一览(4)
英语六级阅读必备词汇
2014年12月英语六级词汇与语法精选特训(4)
英语六级听力考试必背的词汇
2014年英语六级考试最后冲刺必备词汇(1)
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |