作者:深圳教育在线 来源:szedu.net 更新日期：2008-10-15
Where Have All Our Visitors Gone?
Sixty years ago, a man named Kenneth Arnold saw something that people are still __1__ today -something that changed popular culture for ever.
Flying his plane over mountains in the US state of Washington, he saw a line of strange objects, either crescent -shaped or disc-like, flying __2__ the motion of a saucer skimming on water.
The media soon picked up on the story-the Flying Saucers were here1! Was the earth being __3__ by creatures from another planet? Soon， so many sightings were made that the US military began to __4__. It called these strange objects UFOs -Unidentified Flying Objects, and that is how they are __5__ today.
Military investigations found no evidence of visitors from outer space. But that did not stop the true __6__. The military were __7__ up, they said. Or __8__ it was because the travelers from space were of such superior intelligence that they could hide from the most sophisticated military analysts.
People have always seen strange lights in the sky. In the past these were explained in__9__ ways. In a world where religion was less influential and science fiction was popular, signs from god were replaced by visitors from other __10__.
The date of the first UFO signings was also significant. In 1947, World War II had just ended and the __11__ war was just beginning. Humanity seemed locked in endless conflicts. Like generations before them, people looked __12__ the skies for help. But instead of seeking God, they looked for help from super-intelligent aliens with __13__ technology. Belief in UFOs became the first religion of science.
However, even people who believe in UFOs are not quite sure why they visit the earth. The universe is a big place and it is __14__ to assume that there is life somewhere out there. It is possible that aliens have worked out how to travel through space. Yet some people report that they have been taken by aliens and have had experiments __15__ on them. Why would anyone travel across half the universe to conduct medical experiments on people living in small towns in the United States?
词汇：
crescent n．月牙，月牙形物 saucer n．碟
skim v．飞速掠过 alien n．外星人
练习：
1. A) looking B) seeing C) seeking D) feeling
2. A) below B) underneath C) with D) under
3. A) ruled B) bombarded C) captured D) visited
4. A) investigate B) attack C) shoot D) confront
5. A) named B) called C) known D) dubbed
6. A) believers B) thinkers C) followers D) liars
7. A) hiding B) covering C) cheating D) tricking
8. A) definitely B) undoubtedly C) necessarily D) maybe
9. A) awkward B) crude C) religious D) foolish
10. A) planets B) continents C) countries. D) regions
11. A) cool B) star C) nuclear D) cold
12. A) above B) to C) at D) up
13. A) traditional B) backward C) classical D) advanced
14. A) unthinkable B) impossible C) reasonable D) insensible
15. A) performed B) carried C) brought D) taken
完型填空答题思路：
1.分析文章标题，了解文章主题， 确认文章主题词；
2.对比被选项，推测答案可能出自的范围；
3.关注空格两端结构，借助空格所在的局部搭配结构及搭配语意判断答案；
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