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
70
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、Their
B、It’s
C、Theirs
D、Its
答案
D
解析
这里要填入的只是个指称代词,即指出是谁的front flippers,前面在谈whale时用的是单数,所以这里要用单数的代词its。It’s是It is的缩写,theirs是所谓的代词的绝对形式,表示代词their和它后面所加的名词,如;Theirs is a big house等于Their house is a big house。
转载请注明原文地址:https://kaotiyun.com/show/shUd777K
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
SomePeopleDoNotTasteSaltLikeOthersLow-saltfoodsmaybeharderforsomepeopletolikethanothers,accordingtoas
CellPhone:HanguporKeepTalking?Millionsofpeopleareusingcellphonestoday.Inmanyplacesitisactuallyconsidere
HowtoStartaSmallBusinessintheUSPeoplefromothercountriesoftentakeAmericaasthe"landofopportunity".America
Withthehelpofthespace-shuttle-carriedradar,archeologistsfound"They"inthesecondlineofthelastparagraphrefersto
TheGreatestMysteryOfWhalesThewhaleisawarm-blooded,air-breathinganimal,givingbirthtoitsyoungalive,suckingthe
In1970,theUnitedStateswasstillbyfarthemostproductiveofcountriesintheworld,withagrossnationalproductof$1,
SolarPowerwithoutSolarCellsAdramaticandsurprisingmagneticeffectoflightdiscoveredbyUniversityofMichiganrese
SolarPowerwithoutSolarCellsAdramaticandsurprisingmagneticeffectoflightdiscoveredbyUniversityofMichiganrese
GrossNationalHappinessInthelastcentury,newtechnologyimprovedthelivesofmanypeopleinmanycountries.However,o
TheWeightExperimentNicolaWaltershasbeentakingpartinexperimentsinScotlandtodiscoverwhyhumansgainandlosewe
随机试题
A.WhataboutmakingitalittleearlierB.IhavenoideaC.Let’sgotogetherD.ThankyouallthesameE.Doyoulikebasketb
一案件的被告人耳聋,该被告人未委托辩护人,关于该案的辩护人问题,下列说法正确的是:()
《建设工程质量管理条例》规定,在正常使用条件下最低保修期限为5年的是( )。
()是存款人的主办账户。
甲施工企业2013年年末损益表和资产负债表中有关资料如下:根据以上资料,回答下列问题:该施工企业的工程结算收入的内容包括()。
丝竹:音乐
我国各民族分布的特点是:大杂居、小聚居、相互交错居住。少数民族人口虽少,但分布很广,我国民族成分最多的省份是()。
“孤独乔治”恐怕是世界上最有名的单身汉了,它是加拉帕戈斯群岛象龟一个亚种中最后的成员,多年来,它都孑然一身,人类将它与近亲繁殖的尝试也终告失败。2012年6月,“孤独乔治”被发现死亡,享年已达100多岁。在过去的四十年中,乔治作为世界上最稀有的生物。成为了
A、Themanisopposedtodrinking.B、Lastyear’sChristmasdinnerpartywasasuccess.C、Thewomandoesnotwanttogotothisye
Arewereadyforthelibraryofthefuture?A)Librarianstodaywilltellyoutheirjobisnotsomuchtotakecareofbooks
最新回复
(
0
)