新概念英语第四册：Lesson18 Porpoises

【篇一】

Porpoises

海豚

What would you say is the main characteristic of porpoises?

There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation. Marine Studio biologists have pointed out that, however intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving. On the occasions when they have pushed to shore an unconscious human being they have much more likely done it out of curiosity or for sport, as in riding the bow waves of a ship. In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress. If, as has been reported, they have protected humans from sharks, it may have been because curiosity attracted them and because the scent of a possible meal attracted the sharks. Porpoises and sharks are natural enemies. It is possible that upon such an occasion a battle ensued, with the sharks being driven away or killed.

Whether it be bird, fish or beast, the porpoise is intrigued with anything that is alive. They are constantly after the turtles, who peacefully submit to all sorts of indignities. One young calf especially enjoyed raising a turtle to the surface with his snout and then shoving him across the tank like an aquaplane. Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life. This is not easy, and may require two porpoises working together. In another game, as the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly. This knocks the turtle down several feet. He no sooner recovers his equilibrium than the next porpoise comes along and hits him another crack. Eventually the turtle has been butted all the way down to the floor of the tank. He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat. The turtle at last gives up by pulling his feet under his shell and the game is over.

RALPH NADING HILL Window in the Sea

【篇二】

New words and expressions 生词和短语

porpoise

n. 海豚mariner

n. 水手

shark

n. 鲨鱼formation

n. 队形dolphin

n. 海豚科动物unconscious adj. 不省人事beaver

n. 海狸ashore

adv. 上岸waterlogged adj. 浸满水的scent

n. 香味ensue

v. 接着发生intrigue

v. 引起兴趣indignity

n. 侮辱

snout

n. 口鼻部

shove

v. 硬推aquaplane

n. 驾浪滑水板oceanarium

n. 水族馆

swoop

v. 猛扑

belly

n. 腹部equilibrium

n. 平衡

butt

v. 碰撞

crack

n. 重击

【篇三】参考译文

长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命;或在人们周围列队保护，使他们免遭鲨鱼伤害。海洋摄影室的生物学家指出，

无论海豚多么聪明，认为它们有救人的动机可能是错误的。当它们偶尔把一个失去知觉的人推到岸边时，更大的可能是出于好奇或游戏，就像它们追逐被船首犁开的浪花一样。1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。正如报道中所说，如果海豚保护人不受鲨鱼侵害，那么它们可能是出于好奇;而鲨鱼可能是闻到了可以美食

一顿的香味。海豚和鲨鱼是天然仇敌，双方可能随之发生搏斗，搏斗结果是海豚赶走或咬死鲨鱼。

海豚对凡是活的东西都感兴趣，不管是鸟、是鱼，还是野兽。它们经常追逐海龟，海龟则温顺地忍受着各种侮辱。一只小海豚特别喜欢用鼻子把海龟推到水面，然后像滑水板一样把海龟从水池的这一边推到那一边。几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。这并非易事，可能需要两只海豚合伙干才行。在另一场游戏中，当海龟游过水族馆时，第一只海豚从上方猛扑下去，用腹部撞击龟壳。这一下子把海龟撞下去好几英尺。海龟刚恢复平衡，第二只海豚又冲过来猛击一下。这只海龟最终被撞到池底。此时的海龟，只要能站起来就满足了，但它刚站起来，就被一只海豚击倒。海龟终于屈服了，将4条腿缩进壳内。游戏到此结束。

新概念英语第四册课文word版

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Lesson1 We can read of things that happened 5,000 years ago in the Near East, where people first learned to write. But there are some parts of the world where even now people cannot write. The only way that they can preserve their history is to recount it as sagas--legends handed down from one generation of story-tellers to another. These legends are useful because they can tell us something about migrations of people who lived long ago, but none could write down what they did. Anthropologists wondered where the remote ancestors of the Polynesian peoples now living in the Pacific Islands came from. The sagas of these people explain that some of them came from Indonesia about 2,000 years ago. But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten. So archaeologists have neither history nor legends to help them to find out where the first 'modern men' came from.

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L1 Finding fossil man We can read of things that happened 5,000 years ago in the Near East, where people first learned to write. But there are some parts of the world where even now people cannot write. The only way that they can preserve their history is to recount it as sagas----legends handed down from one generation of storytellers to another. These legends are useful because they can tell us something about migrations of people who lived long ago, but none could write down what they did. Anthropologists wondered where the remote ancestors of the Polynesian peoples now living in the Pacific Islands came from. The sagas of these people explain that some of them came from Indonesia about 2,000 years ago. But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten. So archaeologists have neither history nor legends to help them to find out where the first'modern men' came from. Fortunately, however, ancient men made tools of stone, especially flint, because this is easier to shape than other kinds. They may also have used wood and skins, but these have rotted away. Stone does not decay, and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace. New words and expressions recount /ri'kaunt/ v.叙述 / ' rei'kaunt/ 再数一次 record / ' rek[d/ /ri' kC:d/ 第一个音节带重音，名前动后叙述：recount : emotionless 重复 describe depict： a little emotional narrate： temporal&spacial 根据时间或空间顺序描述。 portray：描述 saga /'sa:g[/ n.英雄故事描述的内容mostly real 北欧海盗活动的故事 legend /'ledV[nd/ n.传说，传奇 unreal e.g robin hood anthropologist/ 'AnWr['pCl[dVist/ n.人类学家 anthrop：人 philosophere :philo＋sopher|爱＋智慧＝哲学家 philanthropist : 慈善家（对人有爱心的人） anthropology :人类学带-gy结尾的都是学科：biology 生物学 geography 地理学 ecology 生态学 remote/ ri'm[ut/ n.遥远 ancestor / 'Ansest[/ n.祖先 an- 在前面 forefather,forebear ，predecessor祖先 rot/ rCt/ v.烂掉 leave me rot.＝leave me along rot to death. soon ripe,soon rotten. decay 国家民族逐渐衰亡 decompose 逐渐衰竭 deteriorate关系逐渐恶化 trace /treis/ n.痕迹，踪迹 trace the problem i follow your trace＝i follow where you go polynesia 波利尼西亚 poly-多 polyandric: a wife with more than one husband polygeny : a husband with more than one wife flint /flint/ n.燧石 flinting hearted fossil / ' fCsl/ n. 化石 cobble 鹅卵石 read of 读到谈到：speak of ,talk of ,know of,hear of near east：近东 mediterranean, south europe,north afric far east 非限定性从句，表原因 oral(spoken) language is earlier than written language. precede :什么在什么之前，不用比较，直接跟名词 counterpart: two things or two people have the same position oral(spoken) language is earlier than written counterpart. preserve: 保留，保存（腌制）如果句中有only，那后面的表语结构就要用to do sth,而不是doing sth. storyteller: 讲故事的人 fortuneteller, palmreader: 算命先生 migration ：移民１）migrant ２）immigrant v. migrate:迁移，迁徙 migratory bird:候鸟 none: no body people＋s 民族 if they had any: 即便是有 his relatives,if he had any,never went to visit him when he was hospitalized. find out千方百计，费尽周折＝explore modern men :the men who were like ourselves however－anywhere you want ,加逗号 but,yet－不加标点，only at the beginning of the sentence therefore－自由

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新概念英语4答案,新概念英语第四册答案Unit 1 CABDD BDAAC AB Unit 2 BCBDC ACAAD BC Unit 3 CABDA CDABA CD Unit 4 ACCAB BCDAA BD Unit 5 CABAB DACBB DD Unit 6 CACCC AAADB AA Unit 7 DCABA BACDA AC Unit 8 BDABD BAABC BC Unit 9 CDBAA CABAC AD Unit 10 CAABD CBBDC AA Unit 11 AABDD DADDB DD Unit 12 CABAC CDACA AB Unit 13 ACDAC BDABC AD Unit 14 DBDCC ACCBD BD Unit 15 CADCD DBACA CA Unit 16 ABCCA DDBAB AC Unit 17 BBADA BBDCD CA Unit 18 BABCD CDCCC BA Unit 19 BBCAD AABDD BC Unit 20 BCADC CCBDB CA

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Lessorfl Finding fossil man We can read of things that happened 5,000 years ago in the Near East, where people first learned to write. But there are some parts of the world where even now people cannot write. The only way that they can preserve their history is to recount it as sagas-legends handed dow n from one gen e ratio n of story-tellers to ano ther. These lege nds are useful because they can tell us something about migrations of people who lived long ago, but none could write down what they did. Anthropologists wondered where the remote ancestors of the Polynesian peoples now living in the Pacific Islands came from. The sagas of these people explain that some of them came from Indonesia about 2,000 years ago. But the first people who were like ourselves lived so long ago that even their sagas, if they had any, are forgotten. So archaeologists have n either history nor lege nds to help them to find out where the first 'modern merT came from. Fort un ately, however, ancient men made tools of st one, especially flint, because this is easier to shape tha n other kin ds. They may also have used wood and skins, but these have rotted away. Stone does not decay, and so the tools of long ago have remained when even the bones of the men who made them have disappeared without trace. Lesson2 Spare that spider Why, you may won der, should spiders be our friends ? Because they destroy so many in sects, and in sects in elude some of the greatest en emies of the huma n race. In sects would make it impossible for us to live in the world; they would devour all our crops and kill our flocks and herds, if it were not for the protection we get from insect-eating animals. We owe a lot to the birds and beasts who eat in sects but all of them put together kill only a fraction of the nu mber destroyed by spiders. Moreover, un like some of the other in sect eaters, spiders n ever do the least harm to us or our belongings. Spiders are not in sects, as many people think, nor even n early related to them. One can tell the differe nee almost at a glance for a spider always has eight legs and an in sect n ever more than six. How many spiders are engaged in this work on our behalf ? One authority on spiders made a census of the spiders in a grass field in the south of England, and he estimated that there were more than 2,250,000 in one acre, that is something like 6,000,000 spiders of different kinds on a football pitch. Spiders are busy for at least half the year in killi ng in sects. It is impossible to make more than the wildest guess at how many they kill, but they are hungry creatures, not content with only three meals a day. It has been estimated that the weight of all the in sects destroyed by spiders in Britai n in one year would be greater tha n the total weight of all the human beings in the country. Lesson3 Matterhorn man Modern alpinists try to climb mountains by a route which will give them good sport, and the more difficult it is, the more highly it is regarded. In the pioneering days, however, this was not the case at all.

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