海豚英文介绍

海豚是一种本领超群、聪明伶俐的海中哺乳动物。经过训练，能打乒乓球、跳火圈等。除人以外，海豚的大脑是动物中最发达的。人的大脑占本人体重的百分之二点一，海豚的大脑占它体重的百分之一点七。海豚的大脑由完全隔开的两部分组成，当其中一部分工作时，另外一部分充分休息，因而，可终生不眠。

海豚是靠回声定位来判断目标的远近、方向、位置、形状、甚至物体的性质。有人做试验，把海豚的眼睛蒙上，把水搅浑，它们也能迅速、准确的追到扔给它的食物。 海豚不但有惊人的听觉，还有高超的游泳和异乎寻常的潜水本领。据有人测验，海豚的潜水记录是300米深，而人不穿潜水衣，只能下潜20米。至于它的游泳速度，

海豚更是人类比不上的。海豚的速度可达每小时40公里，相当于是鱼雷快艇的中等速度。在鲸类王国里，要数海豚家族——海豚科的种类最多了，全世界已知一共有30多种。有的种类虽名叫“鲸”，如虎鲸、伪虎鲸，我觉得同样是海豚家族中的成员。

海豚是一类智力发达、十分聪明的动物，它们既不像森林中胆小的动物这样见人就逃，也不一定像深山老林中的猛兽这样遇人就张牙舞爪，海豚总是表象出十分温顺可亲的样子与人接近，比起狗和马来，它们对待人类有时甚至更为友好。

海豚救落水的人的故事，我们听了非常多非常多，海豚与人玩耍、嬉戏的报道也常有所闻，有的故事甚至成为轰动一时的新闻。经过学习训练的海豚，甚至能模仿某些人的话音。70年代，美国的三位科学家，让两头海豚学会了25个单词。新近，太平洋海洋基金会的欧文斯博士等4位科学家，对两头海豚做好训练，花了3年时间，告诉它们700个英文词汇。但是有些科学家认为，不可以把动物的“语言”或“方言”描绘得太离奇。

但是海豚确实具有与众不相同的智力。它的大脑体积、质量同样是动物界中数一数二的。现在，科学家对动物的智力有两种不相同的见解：一种认为黑猩猩是一切动物中最进化、最能干的；另外一种却认为海豚的智力和学习能力与猿相差不大，甚至还是要高壹些。因而有人称海豚为“海中智臾”。 The dolphin is a skill outstanding, the smart sea mammals. After training, can play table tennis, jump ring of fire, etc. Besides, beside those dolphins brain is the most developed in animals. The human brain accounted for my weight 2.1%, dolphins brain accounted for it one point seven percent of their weight. Dolphins brain by completely separated two parts, when one part is working, the other part of the rest adequately, therefore, may lifelong sleepless.

Dolphins are on echolocation to judge target distance, direction, position and shape, even objects of nature. Someone do test, the dolphin blindfold, muddy water, they also can rapid, accurate back to throw its food. Dolphins have not only astonishing hearing, and superb swimming and diving unusually skill. According to some tests, dolphin diving record is 300 meters deep, and people don't wear a diving suits, can descend 20 meters. As regards the swimming speed,

Dolphins is human't match. Dolphins speed per hour 40 kilometers, equivalent to torpedo boats of medium speed. In cetaceans kingdom to several dolphin family - the dolphin secco most species, the world known 30 many kinds. Some species though named "whales", such as the orcas, false killer whales, dolphins is actually in the family members.

Dolphins is a kind of intelligence is developed, very smart animals, they do not like forest timid animal that see people fled, also do not like the beast that meet mountains will show your teeth, dolphins always behaved very docile amiable people close to, like the appearance than dogs and Malay, they treated humans sometimes even more investor-friendly.

Dolphins save drowning person's story, we listened to many people, dolphins and play and playful report also often have to smell, some stories, even become a sensation of news. After the training of dolphins, even can imitate some people's voice. In the 1970s, the United States three scientists, let two dolphins learned 25 words. Recently, the Pacific Ocean foundation owens PHDS four scientists, training for two dolphins, spent three years, the church they 700 English vocabulary. But some scientists think, cannot animals "language" or "dialect" describe too extraordinary.

But dolphins actually have distinctive intelligence. Its brain size, quality also is one of the best in the animal world. At present, the intelligence of animals, scientists have two kinds of different opinions: one is that chimpanzees are all animals most evolution, and the most efficient, Another one was believed that dolphins intelligence and ability to learn and apes almost, or even higher. Thus one called for "sea dolphin ciic Yu".

英语作文 海豚

Dolphin LanguageOne day Mr. Green, the science teacher, asked his class, ＂What do you want to be when you grow up?＂＂I want to be a dolphin trainer like my uncle,＂ Mike answered.＂Why do you want to be a dolphin trainer?＂ asked Mr. Green.＂Because I'm interested in dolphin language.＂＂Dolphin language? Tell us more.＂＂All right,＂ answered Mike, ＂My uncle tells me that dolphins are very clever. One day my uncle saw a sick dolphin in the pool. It couldn't come up for air. So it whistled to the other dolphins for help. They came to their friend and made some strange sounds. They looked sad. Then together they pushed the sick dolphin's head up above the water. Soon it got well.＂＂Some scientists once said to my uncle, 'If you live with a dolphin and talk to it all day, maybe you can teach it some words.' My uncle decided to do that. He lived with a dolphin. The dolphin loved to play ball so he decided to teach the word 'ball' first. He threw a ball to the dolphin and said the word 'ball' many times. Soon the dolphin started to say the word.＂Kate asked, ＂How do they make sounds?＂Mike didn't know.＂They make sounds through blowholes in their heads,＂ said Mr. Green. ＂Scientists know a little about dolphin language, but they have a lot more to learn.＂＂That's why I want to be a dolphin trainer,＂ said Mike. 1.注解(1) trainer n. 训练者(2) whistle v. （兽）啸叫(3) blowhole n. （海豚，鲸鱼等的）鼻孔2.赏析本文用词简单，通俗易懂，深入浅出地解释了海豚的某些生活习性。

3.思考題(1) How do dolphins communicate （交流）？(2) Do you know anything about dolphins showing their kindness to man?

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