第6部分：完形填空（第51~65题，每题1分，共15分）

下面的短文有15处空白，请根据短文内容为每处空白确定1个最佳选项。

UFOs

Sixty years ago, a man named Kenneth Arnold saw something that we can still ____(51) 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 ___(52) the motion of a saucer skimming on water.

The media soon picked up on the story - the Flying Saucers were here! Was the earth　being ______(53) by creatures from another planet? Soon, so many sightings were made that　the US military began to ____(54) It called these strange objects UFOs – Unidentified　Flying Objects, and that is how they are ____(55) today.

Military investigations found no evidence of visitors from outer space. But that did not stop the true ____(56). The military were ___(57) up, they said. Or maybe it　was because the travelers from space were of such superior intelligence ____(58) 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 _____(59) ways. In a world where religion was less influential and science fiction was　popular, signs from god were replaced by visitors from other ____(60) .

The date of the first UFO signings was also significant. In 1947, World War II had just　ended and the ____(61) war was just beginning. Humanity seemed locked in endless　conflicts. Like generations before them, people looked ____ (62) the skies for help. But instead of seeking God, they looked for help from super-intelligent aliens with ____(63) 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 ____(64) 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 ____(65) on them. Why would anyone travel across half the universe to conduct medical experiments on people living in small towns in the United States？

51. ( )

A. see

B. look

C. seek

D. feel

52. ( )

A. below

B. before

C. under

D. with

53. ( )

A. ruled

B. bombed

C. visited

D. captured

54. ( )

A. attack

B. investigate

C. shoot

D. confront

55. ( )

A. written

B. said

C. told

D. known

56. ( )

A. thinkers

B. believers

C. followers

D. runners

57. ( )

A. covering

B. putting

C. cheating

D. tricking

58. ( )

A. which

B. what

C. that

D. this

59. ( )

A. funny

B. crude

C. foolish

D. religious

60. ( )

A. continents

B. planets

C. countries

D. regions

61. ( )

A. cool

B. nuclear

C. cold

D. star

62. ( )

A. to

B. above

C. at

D. up

63. ( )

A. traditional

B. backward

C. advanced

D. classical

64. ( )

A. unthinkable

B. impossible

C. unimaginable

D. reasonable

65. ( )

A. studied

B. performed

C. brought

D. taken