Waves of infrared radiation are longer than waves of visible light, so ordinary digital cameras don't 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.

　　That's a key idea to why WISE will be able to see things other telescopes can't. Not everything in the universe shows up in visible light. Asteroids, for example, are giant rocks that float through space — but they absorb most of the light that reaches them. They don't reflect light, so they're 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.

　　Brown dwarfs8 are another kind of deep-space object that will show up in WISE's pictures. These objects are “failed” stars — 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. They're so dim that they're almost impossible to see with visible light, but in the infrared spectrum they glow.

　　41. What is so special about WISE?

　　A It is as small as a trashcan.

　　B It is small in size but carries a large camera.

　　C Its digital camera can help astronomers to see the unknown space.

　　D Never before has a telescope carried a digital camera in space.

　　42. The camera on WISE

　　A is equipped with expensive computers.

　　B produces images of objects giving off infrared radiation.

　　C reflects light visible to the human eyes.

　　D is similar to an ordinary digital camera.

　　43. It is true that infrared radiation.

　　A is not detectable to humans.

　　B looks brighter than visible light.

　　C is visible light reflected off an object.

　　D has longer waves than those of visible light.

　　44. Which of the following statements about asteroids is NOT ture?

　　A The WISE telescope can catch and take pictures of them.

　　B They do not reflect light that reaches them.

　　C They float through space giving off visible light.

　　D They are invisible to ordinary cameras.

　　45. It can be inferred from the last paragraph that brown dwarfs.

　　A give off infrared radiation.

　　B are power stars like the sun.

　　C become massive and active

　　D are invisible to the WISE telescope.

   五、补全短文

     文中有5处空白，文章后面有6组文字，其中5组取自文章本身。要求应试者根据文章的内容选择5组文字，将其放回相应位置，以恢复文章原貌。
The Mysteries of Nazca

　　In the desert of Peru, 300 kilometers from Lima, one of the most unusual artworks in the world has mystified (迷惑) people for decades. _________ (46) But from high above, these marks are huge images of birds, fish, seashells, all beautifully carved into the earth.

　　The Nazca lines are so difficult to see from the ground that they weren’t discovered until the 1930s, when pilots spotted them while flying over the area. In all, there are about 70 different human and animal figures on the plain, along with 900 triangles, circles, and lines.

　　Researchers have figured out that the lines are at least 1,500 years old, but their purpose is still a mystery. ____________(47) However, it would probably be very tricky to xxxxx and a spaceship in the middle of pictures of dogs and monkeys.

　　In the 1940s, an American explorer named Paul Kosok suggested that the drawings are a chronicle (记录) of the movement of the stars and planets._________  (48) xxxxx an astronomer tested his theory with a computer, but he couldn’t find any relation between the lines and movements in space.

　　Another explanation is that the lines may have been made for religious reasons. xxxxx researcher Tony Morrison investigated the customs of people in the Andes xxxxx and learned that they sometimes pray by the side of the road. It’s possible that xxxxx, the lines of Nazca were created for a similar purpose.__________  (49) But xxxxx people have never constructed anything this big.

　　Recently, two other scientists, David Johnson and Steve Mabee, have speculated xxxxx lines could have been related to water. Nazca is one of the driest places in the xxxxx receives only 2cm of rain every year. While Johnson was searching for xxxxx water sources in the area, he noticed that some waterways built ancient xxxxx were connected with the lines. Johnson believes that the Nazca lines are a giant xxxxx underground water in the area.______ __ (50)

　　A.. Scholars differ in interpreting the purpose of the designs.

　　B. The largest picture may have been the sites for special ceremonies.

　　C. He called Nazca “the largest astronomy book in the world”

　　D. A Swiss writer named Erich von Daniken wrote that the Nazca lines were designed as a landing place for UFOs.

　　E. Other scientists are now searching for evidence to prove this.

　　F. Seen from the ground, it looks like lines scratched into the earth.

六、完型填空：文中有15处空白，每处空白给出4个选项，要求应试者根据短文的内容从4个选项中选择l个最佳答案。

　　Solar Power without Solar Cells
 

　　A dramatic and surprising magnetic effect of light discovered by University of Michigan1researchers could lead to solar power without traditional semiconductor-based solar cells.

　　The researchers found a way to make an “optical 51 ,” said Stephen Rand, a professor in the departments of Electrical Engineering and Computer Science, Physics and Applied Physics.

Light has electric and magnetic 52 . Until now, scientists thought the effect of the magnetic field were so weak that they could be 53 . What Rand and his colleagues found is that at the right intensity, when light is traveling through a material that does not 54 electricity, the light field can generate magnetic effects that are 100 million times stronger than previously expected. Under these circumstances, the magnetic effects develop strength 55 to a strong elec