学位英语

2004年职称英语理工类A级考试试题及答案

第6部分：完形填空 (第51--~65题，每题1分，共15分)

阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从

4个选项中选择1个最佳答案，涂在答题卡相应的位置上。

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

参考答案：

51．B 52．C 53．A 54．D 55．B

56．C 57．A 58．D 59．A 60．B

61．C 62．D 63．B 64．A 65．D

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