Television broadcasts are 71 to an area that is within the 72 of the sending station or its relay(中轉(zhuǎn)站). 73 television relays are often placed on hills and mountains so that they can 74 a wider region, they still can not cover more [and than one from the hilltop 75 a clear day.

　　However, the rays also go out into the atmosphere, 76 there is a relay station on a satellite that 77 around the earth, it can send the pictures to any point on the earth from which the satellite is 78 Three satellites 79 . turning around over the equator(赤道)send any television program to any part of the earth. 80 makes it possible for world 81of newspapers to give-the news in all countries at the same time. 82 it may be possible for a subscriber (訂戶)to a televised news-paper to 83 a button and see a newspaper page 84 his television screen. He could also decide when he wants the page 85 , 86 , by dialing different such as 87 on a telephone dial, he could choose the language or the edition of the paper he wants to read. It seems strange to think that, even today, methods of the 88 are not entirely useless. For example, sometimes89agencies which use radio and Telstar also use pigeons to 90 messages between offices in large cities because the pigeons are not bothered by traffic problems.

　　71. A. prohibited B. bounded C. limited D. shifted

　　72. A. range B. view C. miles D. distance

　　73. A. Even B. Although C. UnlessD. Whenever

　　74. A. cover B. spread C. help D. pass

　　75. A. in B. during C. on D. at

　　76. A. and then B. by far C. when D. and if

　　77. A. spins B. revolves C. jumps D. circles

　　78. A. watched B. visible C. spotted D. protected

　　79. A. always B. temporarily C. permanently D. periodically

　　80. A. This B. That C. What D. Which

　　81. A. population B. editions C. articles D. reports

　　82. A. The other day B. At the future C. Someday D. One day

　　83. A. touch B. press C. suppress D. thumb

　　84. A. at B. in C. onD. by

　　85. A. turn B. to turn C. turning D. to be turned

　　86. A. also B. moreover C. andD. then

　　87. A. what B. these C. those D. ones

　　88. A. passed B. past C. old days D. out-of-date

　　89. A. press B. conference C. newspapersD. books

　　90. A. bring B. take C. distribute D. send

　　參考答案：

　　71.C limit：限制，局限。電視臺(tái)的位置是受到局限的。prohibit：vt.禁止。bound：vi.跳躍，跳動(dòng)。shift：vt.轉(zhuǎn)移，移動(dòng)。

　　72.A range射程，有效距離，量程。如：We waited until the enemy was within range，我們等敵人進(jìn)入了射程。本文指中轉(zhuǎn)站能發(fā)射到的距離范圍之內(nèi)。

　　73.B根據(jù)上下文的邏輯關(guān)系，需要一個(gè)轉(zhuǎn)折關(guān)系的連詞。本句含義為：為了發(fā)射的范圍更廣一些，雖然電視中轉(zhuǎn)站經(jīng)常設(shè)在高山上，可是卻遠(yuǎn)不如設(shè)在山頂上發(fā)射的范圍廣。

　　74.A cover：vt.覆蓋。spread：vt.傳播;help：vt.幫助;pass：vt.通過。此處指中轉(zhuǎn)站覆蓋的地區(qū)。

　　75.C通常說on a clear day.強(qiáng)調(diào)具體的時(shí)間時(shí)用介詞on.如：on Friday，on the evening when l was busy.

　　76.D根據(jù)上下文的邏輯關(guān)系，此處要用表示條件的句子，加上與前面的句子是并列關(guān)系，所以選D.

　　77.B revolve around：繞轉(zhuǎn)，公轉(zhuǎn)(主要指星球，球體)，此處指衛(wèi)星繞著地球轉(zhuǎn)動(dòng)。spin：vi.旋轉(zhuǎn)(以……為軸)。the top was spinning merrily.陀螺在輕快地旋轉(zhuǎn)著。jump：vi.跳躍。circle：v.使轉(zhuǎn)圈，在……上方盤旋。

　　78.B visible能看得見的，是形容詞。其余的都是動(dòng)詞，放在這里是被動(dòng)語態(tài)，不符合語法。

　　79.C permanently：adv.永久地，永恒地。al-ways：adv.總是。temporarily：adv.臨時(shí)地，暫時(shí)地;periodically：adv.周期性地，定期地。衛(wèi)星應(yīng)該被永久固定在一處進(jìn)行節(jié)目的轉(zhuǎn)播。

　　80.A根據(jù)文意，此處要表達(dá)的意思是“這使得世界范圍內(nèi)發(fā)行的報(bào)紙能夠同時(shí)向全世界發(fā)送新聞。”指示代詞this和that可指代前文的句子或句子中的一部分。This指代距離較近的內(nèi)容。因此A項(xiàng)最合適。

　　81.B edition：版本;這里指報(bào)紙的出版。popuIation：n.人口;articles：n.文章;reports：n.報(bào)道。此三項(xiàng)均不符合題意。

　　82.C someday：表示將來的某一天。the other day：前一天。on day：有一天。future：n.將來。未來。一般用in the future.因此C項(xiàng)正確。

　　83.B press a button：按動(dòng)電扭，最符合題意。touch：觸摸，接觸，主要強(qiáng)調(diào)觸覺，一般不和button搭配。suppress：鎮(zhèn)壓。thumb：用拇指翻動(dòng)。

　　84.C on the television screen 在電視屏幕上。

　　85.B 當(dāng)不定式修飾want，have等動(dòng)詞的賓語、而整個(gè)句子的主語是不定式的邏輯主語時(shí)，不定式用主動(dòng)形式表示被修飾賓語的被動(dòng)含義：We have little homework to do.(我們沒有多少作業(yè)可做。即：沒有多少作業(yè)可以被做。)(實(shí)際上是we do homework，所以用主動(dòng)語態(tài));She felt tired because she has three babies to look after.(她要照看三個(gè)孩子，所以很累。)(實(shí)際上是she looks after the habies，所以用主動(dòng)語態(tài)。)