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(曲線)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(軌道)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)	擔(dān)心會(huì)從邊緣上滑下去，因?yàn)樗麄儾恢�道地球是圓的，總以為它一定有盡頭。
(2)	與后面的today對(duì)比應(yīng)選past。
(3)	根據(jù)下半句判斷，他們只得相信其他人的話。
(4)	表示沒有什么方法收集信息。
(5)	飛機(jī)只能在地球上空飛行。
(6)	飛在高空數(shù)英里的宇航員能給我們傳送圖像。
(7)	大多數(shù)人接受地球不是平的這個(gè)事實(shí)。
(8)	表示轉(zhuǎn)折關(guān)系。
(9)	從下文得知，除少數(shù)科學(xué)家外，大多數(shù)人都認(rèn)為地球是圓的。
(10)	將信息“用”在設(shè)計(jì)太空飛行上。
(11)	根據(jù)句子的主語she可以推知應(yīng)該選her。
(12)	由下一句It appeared that…可以得知。
(13)	測(cè)定的是衛(wèi)星近地點(diǎn)到南北半球之間的“距離”。
(14)	與northern hemisphere相對(duì)應(yīng)。
(15)	figure指所測(cè)量的“數(shù)據(jù)”。
(16)	根據(jù)四個(gè)短語與句子的含義，應(yīng)為不放棄這個(gè)想法。
(17)	根據(jù)句意知她不愿意放棄已經(jīng)發(fā)現(xiàn)的新重要信息這一個(gè)念頭。
(18)	要證明她的想法的正確性，就得反復(fù)研究其“形狀”。
(19)	表示“進(jìn)一步”研究證明，故用further。
(20)	她是在跟蹤衛(wèi)星的過程中偶然間發(fā)現(xiàn)上述事實(shí)的。