2019年職稱英語考試閱讀理解精選文章3

1、2019 年職稱英語考試閱讀理解精選文章 3小心鯊魚 !克雷格 羅杰斯正坐在他的沖浪板上估算著下一波浪離他還有多遠， 就在這時沖浪板不動了。他低頭向水下看，驚悚的一幕出現了：一條 大白鯊正在撕咬沖浪板的前端?！拔业闹獠靠赡芏家呀浥龅搅怂难劬Α保死赘裾劦?。原來，這條鯊 魚悄悄地浮上了水面，完全沒讓克雷格聽到?？死赘耋@慌害怕，手足無措，但是偶然之間他被鯊魚咬掉了兩支手指， 然后隨著滑板翻了個個兒，他也掉進水里。就在那時，處于水中的克 雷格兩支手指鮮血直流，但這條五米長的鯊魚卻徑直游開，消失在深 海之中。雖然鯊魚常被認為是瘋狂殺人的獵手，但事實上這是不準確的。鯊魚 很少獵殺人類。比起被鯊魚殺死，

2、人類更有可能被閃電擊中或是淹死 在浴缸中。在上個世紀，有報道的只有 74 人命喪鯊魚之口。不過大白 鯊能夠長到 6 米長、 2200 公斤重或是更重。 3000顆牙齒排成數排長在 鯊魚那可怕的血盆大口中，它們能夠輕易殺死并吃掉無助的落水者。 但為什么絕大部分人受到大白鯊攻擊之后都能鯊口逃生呢？鯊魚研究 者們正在努力尋找使得人類鯊口脫險的原因。最常用的解釋是說大白鯊的視力不好。人們認為大白鯊會把人類錯當 成是海豹或者海獅，后兩者是鯊魚的主要食物來源。但是人類又找到 了理由來質疑這個論斷。最近的研究信息表明大白鯊視力不錯。并且 當大白鯊在攻擊海豹時，它們會迅速竄上海面，用力撕咬。但當大白 鯊在攻擊

3、人類時，它們在絕大部分情況下會慢慢浮上海面，撕咬的力 度也輕得多。它們很快就會發(fā)現人類的肉不夠肥。“它們把我們吐出 來是因為我們太瘦了”，艾丹馬丁說道，他是鯊魚研究暗礁搜索中心 的領頭人。諸如馬丁這樣的鯊魚研究者們提出了這樣的一種假設：大白鯊實際上 是一種好奇心很重的動物，它們喜歡探索新鮮事物。有可能它們撕咬 物體不但僅是為了獵殺和吃掉，也是為了搜集信息。雖然這種經歷對 于像克雷格羅杰斯這些人來說很不幸，但是當鯊魚在撕咬沖浪板，或 是別的物體，甚至是人類時，很可能它們僅僅在盡量了解那到主氏是 個什么東西。Shark attack!Craig rogers was sitting on his

4、surfboard,scanning the distance for his next wave,when his board suddenly stopped moving. he looked down and was terrified to see a great white shark biting the front of his board.”I could have touchedits eye with my elbow, ”says craig. The shark had surfaced so quietly that he hadnt heard a thing.I

5、n his horror and confusion,he waved his arms and accidentally cut tow of his fingers on theshark s teeth.Hethen slid off the opposite side of his surfboard into the water. Then,with Craig in the water and blood flowing from his fingers, the five-meter-long shark simply swam away,disappearing into th

6、e water below.Although sharks are often categorized as killers that hunt and eat as many humans as then can,this is factually inaccurate.Sharks very rarely kill humans,Aperson has a greater chance of being struck by lightning or drowning in a bath than of being killed by a shark.Only 74 people have

7、been reported killed by great whites in the last century.But great white sharks can reach six meters in length and weigh 2200 kilograms or more.With frightening jaws that can hold up to 3000 teeth arranged in several rows,they could very easily kill and eat a helpless human in the water.Why isit,the

8、n,that most people survive attacks by great whites?Shark researchers are trying to comprehend the reasons that allow people to escape without being eaten.The most common explanation is that great whites dontseewell.It has been thought that they mistake people for the seals or sea lions which make up

9、 a large part of their diet.There is reason to doubt this,however.Recent information shows that great whites can actually see very well.Also,when accacking seals,great whites shoop up to the surface and bite with great force.When approaching humans,however,they most often move in slowly and bite les

10、s hard.They soon discover that humans are not a high-fat meal. ”They spit us outbecause were too bony, ” says Aidan Ma rtin,director of Reef Quest Center for Shark Research.Shark researchers like Martin hypothesize that great whites are actually curious animals that like to investigate things.It s possible that they use their bite not only to kill and eat,but also to gather information,Although su