The Greatest Mystery of Whales
The whale is a mammal - 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. __1__ front flippers, 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 whales body is one gigantic muscle. The blue whales pulling __2__ has been estimated at 400 horsepower. One specimen was reported to have __3__ a whaling vessel for seven hours at the __4__ of eight knots.
An enraged whale will attack a ship. A famous __5__ of this was the fate of whaler Essex, which was sunk __6__ South America early in the last century. More recently, steel ships have had their plates buckled in the same way. Sperm whales were known to __7__ the old-time whaleboats in their jaws and crush them.
The greatest mystery of whales is their diving ability. The sperm whale __8__ the bottom for his favourite food, the octopus. __9__ he is known to go as far down as 3,200 feet, where the pressure is 1,400 pounds, to the square inch. Doing __10__ he will remain submerged as long as one hour. Two feats are involved in this : storing up enough __11__ and withstanding the great change in pressure. Just __12__ he dose 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 __13__ 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 __14__ you cant bring a live whale into the laboratory for study, no one __15__ just how these things work.
EXERCISE:
1. A)Their B)His C)Theirs D)Its
2. A)strength B)width C)height D)length
3. A)eaten B)crashed C)towed D)lifted
4. A)distance B)rate C)voyage D)sail
5. A)picture B)film C)example D)book
6. A)off the coast of B)of the coast of C0away the coast of D)in the coast of
7. A)hit B)seize C)damage D)overturn
8. A)sink to B)rest on C)dive to D)hide on
9. A)In that search B)Because of this C)In spite of that D)In support of this
10. A)so B)such C)above D)the same
11. A)air B)oxygen C)energy D)heat
12. A)what B)where C)how D)when
13. A)it is believed B)he believes C)we believe D)it believes
14. A)because of B)due to C)since D)owing to
15. A)communicates B)knows C)hears D)develops
KEY:D A C B C A B C A A B C A C B
体坛英语资讯:Ukraine cyclist Kononenko wins Tour of Fuzhou opening stage
《蜘蛛侠:英雄归来》电影精讲(视频)
体坛英语资讯:Indonesia holds shooting test event for Asian Games
体坛英语资讯:Record revenue filed by league leaders Man City
习近平在越南媒体发表署名文章
体坛英语资讯:Kenya Olympic champion Sumgong banned for four years
携程亲子园曝虐童事件
国内英语资讯:Over 1,000 new products to debut at China hi-tech fair
国际英语资讯:U.S. Texas legislators call for rethinking gun laws after church mass shooting
国际英语资讯:Spanish prosecutor calls for jail for former Catalan officials
超越Gucci!巴黎世家成为全球最热时尚品牌!
2017年12月英语四级作文范文:整容
习近平特朗普同游故宫!那些让特朗普惊叹的殿、楼、斋,用英文怎么说?
中国人英语水平列全球第36位 上海领跑全国
KFC推出炸鸡味沐浴露,光是想想就很带感!
2017年12月英语六级作文范文:守时
国际英语资讯:NATO defense ministers agree on creating two new commands
体坛英语资讯:Indonesia holds tennis test event for 18th Asian Games
国内英语资讯:China to maintain macroeconomic policy in 2018
国内英语资讯:Xis book on governance published in Lao language
国际英语资讯:U.S. announces sanctions against 10 Venezuelan officials
体坛英语资讯:Croatia closer to 2018 World Cup after defeating Greece
国际英语资讯:Mexico to stand firm on NAFTA automotive rules of origin during talks
国内英语资讯:China Focus: Xi hosts Trump with iconic Chinese culture
国内英语资讯:Full text of Chinese President Xis signed article on Vietnamese media
国际英语资讯:European, Arab leaders urge for closer cooperation to face common challenges
国内英语资讯:Xinhua Insight: Xi, Trump agree on leading role of head-of-state diplomacy in Sino-U.S. ties
星巴克正式进军饮食界!意大利甜点即将要来
国际英语资讯:Saudi Arabia releases 7 out of 208 detained for corruption charges
美国国会共和党税改将增加国债1.7万亿美元
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |