首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
The Greatest Mystery of Whales The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive,
The Greatest Mystery of Whales The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive,
admin
2009-05-21
81
问题
The Greatest Mystery of Whales
The whale is a mammal (哺乳动物) - warm-blooded, air-breathing, giving birth to its young alive, sucking them - and, like all mammals, originated on land. There are many signs of this. (51) front flippers (鳍肢) , used for steering and stability, are traces of feet.
Immense strength is built 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 (52) has been estimated at 400 horsepower. One specimen was reported to have (53) a whaling vessel for seven hours at the (54) of eight knots.
An enraged whale will attack a ship. A famous (55) of this was the fate of whaler Essex, which was sunk (56) the coast of South America early in the last century. More recently, steel ships have had their plates buckled (扭曲变形) in the same way. Sperm whales were known to (57) the old-time whaleboats in their jaws and crush them.
The greatest mystery of whales is their diving ability. The sperm whale can (58) the bottom for his favorite food, the octopus (章鱼) . (59) that search he is known to go as far down as 3,200 feet, where the pressure is 1,400 pounds, to the square inch. Doing (60) he will remain submerged (水下的) as long as one hour. Two feats (绝技) are involved in this: storing up enough (61) (all whales are air-breathed) and withstanding the great change in pressure. Just (62) he does it scientists have not determined. It is believed that some of the oxygen is stored in a special system of blood vessels, rather than just held in the lungs. And (63) is believed that a special kind of oil in his head is some sort of compensating mechanism that automatically adjusts the internal pressure of his body. But (64) you can’t bring a live whale into the laboratory for study, no one (65) just how these things work.
选项
A、so
B、such
C、above
D、the same
答案
A
解析
so用来代替前面所说过的一个动作。这里它指的是sperm whale为了觅食潜至海底3,200英尺处。又如:She walks one hour every morning.Doing so,she expects to reduce her weight.她每天早上散步一小时,她想通过这个方式来减轻体重。
转载请注明原文地址:https://kaotiyun.com/show/amUd777K
本试题收录于:
职称英语综合类A级题库职称英语分类
0
职称英语综合类A级
职称英语
相关试题推荐
A.increasedB.releasedC.modifiedD.distributedE.browsedF.personalizedInApril2010theiPaddevelopedbyApplewas___
Hebeganhistalkbygivingaconcisedefinitionofpost-modernism.
Whichofthefollowingtitlesismostappropriatetothepassage?WhathavethetwoFrenchgeophysicistsdiscoveredintheirre
Readingthejobad,hewonderedwhetherhewaseligibletoapplyforit.
TheGreatestMysteryOfWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingthe
TheGreatestMysteryOfWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingthe
GrossNationalHappinessInthelastcentury,newtechnologyimprovedthelivesofmanypeopleinmanycountries.However,o
LosingWeightGirlsasyoungas10yearsoldaredietingandindangerofdevelopingunhealthyattitudesaboutweight,body
TheWeightExperimentNicolaWaltershasbeentakingpartinexperimentsinScotlandtodiscoverwhyhumansgainandlosewe
A.thevolunteersdoB.becauseshedoesnothaveaweightproblemC.becausethelifetherecanbeveryboringD.make
随机试题
易卜生是欧洲近代现实主义戏剧的杰出代表,他是()
调节血钙浓度的物质有【】
指出"平治于权衡,去菀陈挫,开鬼门,洁净府"之论见于
国家不鼓励引进境外落后的用能技术、设备和材料。()
在电气工程配管时,切割速度快、功效高、质量好,目前较先进、有效的管子切割方法为()。
根据《水利工程质量管理规定》(水利部令第7号),组织设计和施工单位进行设计交底的主体是()。
导游服务三要素指的是()。
杂志对于()相当于()对于农民
撰写实验研究报告需要注意哪些方面?
Attendingtoawifeandsixchildren______mostofhistimes.
最新回复
(
0
)