职称英语考试

试题来源：2004年职称英语等级考试真题（理工类A级）
【单选题】

The Greatest Mystery Of Whales
The whale is a warm-blooded，air-breathing animal，giving birth to its young alive，sucking
them--and，like all mammals，originated on land．There are many
front flippers(鳍状肢)，used for steering and stability, are traces of feet．
(51)of this．Its
Immense strength is——(52)into the great body of the big whales，and in fact most
of a whale’s body is one gigantic muscle．The blue whale’s pulling strength has been estimated
(53)400 horsepower．One specimen was reported to have towed(拖)a whaling
vessel for seven hours at the            (54) of eight knot (节).
An angry whale will             (55) A famous example of this was the fate of
Whaler Essex,          (56)was sunk off the coast of South America early in the last century．
More recently, steel ships have           (57)their plates buckled(使弯曲)in the same way．
Sperm whales(抹香鲸)were known to seize the old-time whaleboats in their jaws and crush
Them.
The greatest          (58)of whales is their diving ability．The sperm whale dives to the
Bottom for his          (59)food，the octopus(章鱼)．In that search he is known to go as far
Down as 3,200 feet, where the．          (60)is 1,400 pounds，to a square inch．Doing so he
Will            (61)underwater long as one hour．Two special skills are involved in this
storing up enough            (62)(all whales are air—breathed)and tolerating the great change
in pressure．Just how he does it scientists have not           (63)．It is believed that some of
the oxygen is stored in a special             (64)of blood vessels，rather than just held in the
lungs．And it is believed that a special kind of oil in his head is some sort of compensating
mechanism that            (65)adjusts the internal pressure of his body．But since you can’t
bring a live whale into the laboratory for study, no one knows just how these things work．
51 A aspects          B signs            C ways            D reasons
52 A worked          B divided          C built            D moved
53 A at               B in              C of              D with
54A number           B degree          C distance         D rate
55A abandon          B attack           C leave           D board
56A as               B  who           C which          D  t}1at
57A had              B  operated       C Seen           D caught
58A interest           B  job            C danger         D mystery
59A favorite           B fast             C new           D sufficient
60A depth             B pressure         C level          D  size
61A set               B become          C remain        D rest    ．
62A heat              B energy           C food          D oxygen
63A witnessed         B determined        C applied        D  calculated
64A system           B place             C arrangement    D equipment
65A mentally          B artificially         C manually      D automatically

网考网参考答案：B、C、A、D、B、C、A、D、A、B、C、D、B、A、D
大数据分析：根据网考网与考试题库的统计分析，该试题：
88%的考友选择了A选项
5%的考友选择了B选项
2%的考友选择了C选项
5%的考友选择了D选项
考友解析与评论：
 · 到底谁的答案是对的呀？
 · 大家看教材，书上原话
 · 为什么选这个，有没有大神解答一下