練習：

　　1 .What is so special about WISE?

　　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.

　　2. Which is NOT the synonym for the word "snap" in the third paragraph?

　　A make.

　　B shoot.

　　C take

　　D photograph.

　　3. The camera on WISE

　　A 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.

　　4. Which of the following is NOT correct about"asteroids" according to paragraph 7?

　　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

　　5.What is implied in the last paragraph?

　　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.

　　答案與題解：

　　1. C 短文的第一和第二段提供了答案。WISE 的特殊之處就在于，雖然體積小，但它的數碼相機能拍到任何天體，所以能夠幫助天文學家觀測到宇宙空間中( in the known universe )的未知天文現象。其他選項都不是短文表達的意思。

　　2. A snap 是個多義詞，可以解釋為"拍照"，更為確切的意思是"拍快照"。這里shoot， take 和photograph 都是snap 的同義詞。

　　3. C 短文第六段和第四段提供了答案。人類的肉眼和普通相機看到的光是visible lights ，看不見紅外線輻射( infrared radiation) ，而WISE 的相機能夠看到。

　　4. A 短文第七段第二句說并非所有的宇宙中的物體都會發出可見光，比如asteroids ，所以A是正確選項。其他選項的內容都可以在該段中找到。

　　5. B 最后一段的第一句說，褐矮星能出現在WISE 照片中，根據上文對WISE 望遠鏡的描述只有WISE 望遠鏡才能拍到紅外線射線，所以B是正確選擇。