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,used for steering and stability, are traces of feet.______of this.Its Immense strength is______into the great body of the big whales,and in fact most of a whales body is one gigantic muscle.The blue whales pulling strength has been estimated ______400 horsepower.One specimen was reported to have toweda whaling vessel for seven hours at the______ of eight knot . An angry whale will ______ A famous example of this was the fate of Whaler Essex, ______ was sunk off the coast of South America early in the last century.
More recently, steel ships have ______their plates buckledin the same way. Sperm whaleswere known to seize the old-time whaleboats in their jaws and crush Them. The greatest ______ of whales is their diving ability.The sperm whale dives to the Bottom for his______ food,the octopus.In that search he is known to go as far Down as 3,200 feet, where the.______ is 1,400 pounds,to a square inch.Doing so he Will ______ underwater long as one hour.Two special skills are involved in this storing up enough______ and tolerating the great change in pressure.Just how he does it scientists have not ______.It is believed that some of the oxygen is stored in a special______ 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 ______ adjusts the internal pressure of his body.But since you cant bring a live whale into the laboratory for study, no one knows just how these things work.
1 A aspects B signs C ways D reasons
2 A worked B divided C built D moved
3 A at B in C of D with
4 A number B degree C distance D rate
5 A abandon B attack C leave D board
6 A as B who C which D that
7 A had B operated C Seen D caught
8 A interest B job C danger D mystery
9 A favorite B fast C new D sufficient
10 A depth B pressure C level D size11 A set B become C remain D rest
12 A heat B energy C food D oxygen
13 A witnessed B determined C applied D calculated
14 A system B place C arrangement D equipment
15 A mentally B artificially C manually D automatically
每日雅思词汇:艺术风格
每日雅思词汇:"眼"中的词汇
每日雅思词汇:雅思合成词组
每日雅思词汇:心灵的窗户-眼睛
每日雅思词汇:take短语
每日雅思词汇:五谷杂粮
每日雅思词汇:照亮生命的"光"
每日雅思词汇:表示时间的词汇
每日雅思词汇:各种人际关系
每日雅思词汇:雨天路难走
每日雅思词汇:资讯报道常见词汇
每日雅思词汇:“press”的同源词汇
每日雅思词汇:世界大学生运动会
每日雅思词汇:犯罪词汇
每日雅思词汇:吃货最爱的食物
每日雅思词汇:表达冷漠的词汇和词组
每日雅思词汇:"马“背上的词汇
每日雅思词汇:各种贬义称呼
每日雅思词汇:婚姻状况
每日雅思词汇:嘲笑、挖苦
雅思听力题干中的生词如何处理?
每日雅思词汇:交通禁止标志
每日雅思词汇:各种各样的职位
每日雅思词汇:航空母舰
每日雅思词汇:天气词汇
每日雅思词汇:词性缩写小知识
每日雅思词汇:入住酒店必知的词汇
每日雅思词汇:机构改革词汇
每日雅思词汇:美味日料词汇
每日雅思词汇:含有"震惊"之意的词汇
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