Today, most countries in the world have canals. Many countries have built canals near the coast, and parallel 67 the coast. Even in the twentieth century, goods can be moved more cheaply by boat than by any other _68_ of transport.
These _69 make it possible for boats to travel __7 0_ ports along the coast without being _7_1_ to the dangers of the open. Some canals, such as the Suez and the Panama, save ships weeks of time by making their 72 a thousand miles shorter. Other canals permit boats to reach cities that are not 73 on the coast; still other canals .74._ lands where there is too much water, help to _75 fields where there is not enough water, and 76_. water power for factories and mills. The size of a canal ___7_7_ on the kind of boats going through it. The canal must be wide enough to permit two of the largest boats using it to _7_8 each other easily. It must be deep enough to leave about two feet of water .79__ the keel of the largest boat using the canal. When the planet Mars was first ._80_ through a telescope, people saw that the round disk of the planet was crises-crossed by a 8l of strange blue- green lines. These were called "canals" _82_ they looked the same as canals on earth 83 are viewed from an airplane.
However, scientists are now 84 that the Martian phenomena are really not canals. The photographs ~ 85 from space-ships have helped us to __86~ the truth about the Martian "canals".
67.[A] off [B] with [C] to [D] by
68. [A] way [B] meansi [C] method [D] approach
69. [A] waterways [B] waterfronts [C] channels [D] paths
70. [A] among [B] between [C] in [D] to
71. [A] revealed [B] exposed [C] opened [D] shown
72. [A] trip! [B] journey [C] voyage [D] route
73. [A] lain [B] stationed [C] set [D] located
74. [A] escape [B] drain [C] dry [D] leak
75. [A] water [B] wet [C] soak [D] irrigate
76. [A] furnish [B] afford [C] offer [D] give
77. [A] focuses [B] bases [C] depends [D] takes
78. [A] cross [B] pass [C] move [D] advance
79. [A] down [B] below [C] beneath [ D ] off
80. [A] studied [B] researched [C] surveyed [D] observed
81. [A] plenty [B] number [C] deal [D] supply
82. [A] although [B] because [C] so [D] if
83. [A] that [B] where [C] when [D] as
84. [A] exact [B] definite [C] certain [D] decisive
85.
[A] held [B] taken [C] got [D] developed
86.
[A] find [B] expose [C] uncover [D] discover
参考答案
67.C惯用搭配题。固定搭配parallel to意为“与……平行”，符合句意，所以C正确。
68.B惯用搭配题。means of transport意为“交通工具/方式”，是固定搭配，所以B正确。
69.A词义辨析题。waterway意为“水道”，waterfront意为“城市的滨水区”，channel意为“海峡”，paths意为“小路”，结合上下文可知，运河其实就是水道，所以A正确。转自:考试网 - [Examw.Com]
70.B介词用法题。between指“在两者之间”，符合句意，所以B正确。而among指“在三个或三个以上的人/物中间”，与句意不符，故排除。
71.B词义辨析题。expose意为“使暴露、面临”，常与介词t0连用，表示“暴露于……之中”，符合句意，所以B正确。reveal意为“显示，揭露”，常用于表示秘密、真相等被揭露;show意为“展示”;open意为“打开”，均排除。
72.C词义辨析题。voyage意为“航行”，且特指水上航行，而其他选项均与水无关，所以C正确。
73.D词义辨析题。locate意为“位于”，符合句意，所以D正确。station意为“驻扎于”，set意为“放置于”，lie在意为“位于”时不能用于被动语态，均应排除。
74.B词义辨析题。根据常识，水量过多通常都要排掉，drain意为“排出……的水”，所以B正确。escape意为“溢出”，dry意为“变干”，leak意为“漏出”，均不符合句意，故排除。
75.D词义辨析题。在水量不足的地区，通常需要用外界的水来灌溉，irrigate意为“灌溉”，符合句意，所以D正确。water意为“浇水，喷淋”，wet意为“弄湿”，soak意为“浸透”，均不符合句意，故排除。
76.A惯用搭配题。选项中能与介词for搭配表示“提供”的只有furnish，所以A正确。afford，offer和give在指“提供，给予”时通常用afford/offer/give sb.sth.的结构。
77.C词义辨析题。depend on意为“取决于”，结合句意可知，C正确。base on意为“以……为基础”，take on意为“承担”，focus on意为“集中(注意力)”，均不符合句意，故排除。
78.B词义辨析题。本句的意思是“运河必须足够宽，能允许两条最大的船同时________。”只有pass(通过)符合句意，所以B正确。
79.C词义辨析题。beneath指“在……以下”，表示位置，符合句意，所以C正确。down指“向下”，表示方向;below多用于抽象概念;off表示距离，均应排除。
80.D词义辨析题。表示“用……观测”，要用动词0bserve，所以D正确。study和research指“系统研究”，survey指“调查，检查”，均排除。
81.B词义辨析题。a number of表示“大量的”，后跟可数名词，符合句意，所以B正确。plenty of意为“大量的”，后既可跟可数名词，又可跟不可数名词，但没有a plenty of这种用法;a deal of表示“大量的”，但不能修饰可数名词;也没有a supply of这样的用法，所以排除A、C、D项。
82.B逻辑衔接题。结合句意可知，这里要用表原因的连词来引导原因状语从句，所以B正确。
83.A逻辑衔接题。分析句子结构可知，此处应填入一个能引导定语从句的关系代词，由于先行词是canals，所以A正确。注意，不要看到as，就想到as…as…结构而错选。这里的as是the same as…结构的一部分。
84.C词义辨析题。exact意为“准确的”，definite意为“明确的”，certain意为“确信的”，decisive意为“决定性的”。exact和definite用于修饰物，所以排除;decisive不符合句意，也排除，故选C。
85.B惯用搭配题。take photographs是惯用搭配，意为“拍照”，所以B正确。
86.D词义辨析题。discover强调发现抽象的事物，符合句意，所以D正确。find常指发现具体的事物，expose指“暴露”，uncover指“揭开”，均应排除。