Question

完形填空： 　　Sailors long ago were often afraid that if they sailed too far from home they would fall off the 　　1　　 of the flat ocean．In the 　　2　　, many people had to trust the words of 　　3　　, for they have no way to gather 　　4　　 for themselves．Today, we can fly in airplanes high over the 　　5　　 and see the curve(曲线)that proves its roundness．Astronauts flying miles high can send us 　　6　　 that support our beliefs．Most people now 　　7　　 the fact that the earth is certainly not flat．　　8　　many of them don’t realize that it’s not exactly 　　9　　 either． 　　A mathematician, Ann Eckels Bailie, used computers to gather information to 　　10　　 in planning space flights． 　　During 　　11　　work of tracking the second US satellite, Vanguard I, she discovered some facts that didn’t 　　12　　 to make sense．It appeared that the perigee(or point nearest to the earth)satellite orbit(轨道)measured a different 　　13　　 from the northern hemisphere(半球)of our earth than from the 　　14　　 hemisphere．At first, she thought these strange 　　15　　 were because of some mathematical mistakes．But Bailie wouldn’t 　　16　　 the idea that important new information had been 　　17　　．She and．other scientists discussed the 　　18　　 of the earth again and again．　　19　　 research finally proved that Bailie’s 　　20　　 finding was correct． (1) [　　] A． bottom B． edge C． top D． water (2) [　　] A． end B． future C． beginning D． past (3) [　　] A． others B． gods C． anybody D． their (4) [　　] A． advice B． help C． information D． announcement (5) [　　] A． earth B． star C． moon D． universe (6) [　　] A． news B． sounds C． gifts D． pictures (7) [　　] A． refuse B． prove C． accept D． find (8) [　　] A． But B． And C． So D． Therefore (9) [　　] A． smooth B． natural C． round D． still (10) [　　] A． sell B． use C． enjoy D． store (11) [　　] A． her B． his C． its D． our (12) [　　] A． want B． like C． seem D． help (13) [　　] A． distance B． size C． weight D． length (14) [　　] A． any B． another C． eastern D． southern (15) [　　] A． material B． figures C． problems D． answers (16) [　　] A． go over B． get in C． give up D． put up (17) [　　] A． discovered B． invented C． formed D． received (18) [　　] A． history B． position C． route D． shape (19) [　　] A． No more B． Further C． Happy D． Difficult (20) [　　] A． useless B． frightening C． accidental D． usual

Answer 1

答案：1．B;2．D;3．A;4．C;5．A;6．D;7．C;8．A;9．C;10．B;11．A;12．C;13．A;14．D;15．B;16．C;17．A;18．D;19．B;20．C;
解析：

(1)	担心会从边缘上滑下去，因为他们不知道地球是圆的，总以为它一定有尽头。
(2)	与后面的today对比应选past。
(3)	根据下半句判断，他们只得相信其他人的话。
(4)	表示没有什么方法收集信息。
(5)	飞机只能在地球上空飞行。
(6)	飞在高空数英里的宇航员能给我们传送图像。
(7)	大多数人接受地球不是平的这个事实。
(8)	表示转折关系。
(9)	从下文得知，除少数科学家外，大多数人都认为地球是圆的。
(10)	将信息“用”在设计太空飞行上。
(11)	根据句子的主语she可以推知应该选her。
(12)	由下一句It appeared that…可以得知。
(13)	测定的是卫星近地点到南北半球之间的“距离”。
(14)	与northern hemisphere相对应。
(15)	figure指所测量的“数据”。
(16)	根据四个短语与句子的含义，应为不放弃这个想法。
(17)	根据句意知她不愿意放弃已经发现的新重要信息这一个念头。
(18)	要证明她的想法的正确性，就得反复研究其“形状”。
(19)	表示“进一步”研究证明，故用further。
(20)	她是在跟踪卫星的过程中偶然间发现上述事实的。