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
研究表明 劝慰别人时候只要静静聆听就可以了
国际英语资讯:Intl conference held in Singapore to promote Belt and Road Initiative
这个经典心理学实验,说明人类很容易被操纵
体坛英语资讯:Celta sack Argentine coach Antonio Mohamed
体坛英语资讯:Organizers deny Federer is given undue treatment at Australian Open
购物竟然能减龄?10个神奇的减龄习惯
找工作之前,务必认清自己
预警! 2030年恐有4000万糖尿病患者难以取得胰岛素!
国内英语资讯:China vows to continue support for Myanmars peace process in Rakhine
怎样才能不乱花钱?你需要想清楚这9点
体坛英语资讯:Ghana gearing up for Africa Womens Cup of Nations
外媒: 杭州致力打造世界电竞之都
国际英语资讯:Spotlight: Kramp-Karrenbauer succeeds Merkel as German CDUs new leader
研究显示 睡眠不足会让人易怒
LV开始卖蜡烛了,看了价格你会流泪
娱乐英语资讯:Interview: Kim Kardashian eyes China as potential market
体坛英语资讯:Kenya withdraws from hosting regional CECAFA Senior Challenge Cup
英国富人和穷人的预期寿命差距已经拉大到近10年
体坛英语资讯:Djokovic at his best to beat Isner in ATP finals
国内英语资讯:China demands immediate release of Huawei CFO
国内英语资讯:Chinese state councilor meets DPRK FM on bilateral ties, Korean Peninsula situation
国内英语资讯:Top political advisor highlights basic research, original innovation
《使女的故事》明年要出小说续集 有没有很期待?
2018年12月英语六级易考范文:我对大学生退学的看法
国际英语资讯:Putin, Greek PM discuss gas pipeline extension to Greece
关于感恩节的10个谣言
国际英语资讯:S. African president says National Minimum Wage to take effect on Jan. 1
2018年12月英语四级作文预测:团结的力量
体坛英语资讯:Real Madrid confirm Solari as coach until June 2021
法国9岁男孩因不写作业被家人暴打致死
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |