(完整版)高中英语必修三-课文详解Book3-unit4(最新整理)
important 是由 what 引导的名词从句作主语；that…on its surface 是由 that 引导的名词从句作表语，系表语
从句，在这个表语从句中又含有由 as 引导的时间状语从句。②what is more 而且, 此外; 更有甚者 eg.
They are going to get married, and what's more they are setting up in business together.他们就要结婚了, 而且还
believe 是由 what 引导的主语从句，作整个句子的主语。 ② dissolve vt. & vi.(使)溶解 eg. The sun
dissolves snow.太 阳 使 雪 融 化 。 ③ harmful adj. 有 害 的 ； 伤 害 的 be harmful to…对 …有 害 处 eg.
宙大爆炸”之后的几十亿年间，地球依然是一团尘埃。 What it was to become was uncertain until
between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.这一团尘埃会变成什
produce carbon, nitrogen, water vapour and other gases, which were to make the earth’s
atmosphere.他们最终形成了碳、氮、水蒸气和其它气体，而这些就构成了地球的大气。【注释：in time
(1)迟早, 最后 eg. In time you'll forget him.你迟早会忘了他的。 (2)及时, 不迟 eg. He is believed to
dinosaur n.恐龙
extinct adj.灭绝的；绝种的
carbon n.碳
exist vi.存在；生存
climate n.气候
nitrogen n.氮
mammal n.哺乳动物
comet n.彗星
vapour n.蒸汽；水蒸气
give birth to 产生；分娩
crash vi. & vt.碰撞；坠落
atmosphere n.大气层；气氛
in one’s turn 轮到某人；接着
lessen vi. & vt.减少；减轻
fundamental adj.基本的；基础的 carbon dioxide 二氧化碳
cheer up 感到高兴；感到兴奋
dissolve vt. & vi.溶解；解散
prevent…from…阻止；制止
个方向。】 After that, atoms began to form and combine to create stars and other bodies.之后，原子
开始形成，并结合形成恒星和其他物体。
For several billion years after the “Big Bang”, the earth was still just a cloud of dust.就在“宇
be back in no time.我马上就回来。 at one time 曾经； at a time 一次； at the same time 同时，然而，可是；
from time to time 有时，偶尔
考题： 1. ______， I lost heart in English learning，but my teacher often said to me，“Keep on studying hard,
with laughter 哄然大笑；explode into laughter 突然大笑起来；explode into pieces 炸得粉碎。 如：Many
people were injured when the boiler exploded.锅 炉 爆 炸 时 ， 许 多 人 受 了 伤 。】 They were in time to
前五天完成工作。 all the time 一直，始终 eg. I have been busy all the time.我一直很忙。 at no time 绝
不，在任何情况下都不 eg. At no time will we give up.我们绝不屈服。 in no time 立刻，马上 eg. I'll
weightlessly adv.失重地
harmful adj.有害的
puzzle n.迷；难题 vt. & vi.
mass n.质量；团；块；大量
get the hang of 熟悉；掌握；理解 exhaust vt.用尽；耗尽；使精疲力竭 now that 既然
break out 突发；爆发
cabin n.小屋；船舱
必修三 Unit 4 课文详解
杨磊译注
2
arrive in time.相信他会及时到达。 against time 争分夺秒地，尽快地 eg. he was working against time.他
正争分夺秒地工作。 ahead of time 提前，提早 eg. We completed the work five days ahead of time.我们提
presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.许
多科学家认为水的持续存在让地球将有害的气体和酸溶解到海洋中去。【注释： ①What many scientists
么还不能确定，直到 45 亿至 38 亿年前，这团尘埃才形成一个固定的球体。【注释：settle into 有头绪, 上
正轨 eg. Things soon settled into shape.事情很快有了头绪。】 The earth became so violent that it
was not clear whether the shape would last or not.地球变得如此剧烈，以致于它能否持续下来还不清楚。
began with a “Big Bang” that threw matter in all directions.然而，根据一个广泛接受的理论，宇宙开
始于一次“创世大爆炸”，该爆炸将物质抛向各个方向。【注释：in all directions 四面八方；各个方向 eg.
The birds flew away in all directions when he fired a salute with a“bang”.当他“砰”的一声鸣礼炮时，鸟飞向各
and you’ll succeed _______.”
A．At a time；in time B．At a time；on time C．At one time；in time D．At one time；on time
2. —Does he often ask you for help?
—Oh，no，only________.
watch out 密切注意；当心；提防
II．Reading HOW LIFE BEGAN ON THE EARTH 地球上的生命是怎样开始的
No one knows exactly how the earth began, as it happened so long ago. 由于地球的产生是那
要一起做生意呢。】
Water had also appeared on other planets like Mars but unlike the earth, it had disappeared
later.水在其它行星上如火星也出现过，不过，不像地球上，它消失了。 It was not immediately
Big Bang 宇宙大爆炸；创世大爆炸 amphibian n.两栖动物
geologist n.地质学家
atom n.原子
reptile n.爬行动物；爬虫
physicists n.物理学家
globe n.球体；Байду номын сангаас球仪；地球
lay eggs 下蛋
block out 挡住（光线）
violent adj.猛烈的；激烈的
么的久远，所以没有人确切知道地球是怎样产生的。【注释：as it happened 碰巧 eg. They were all out,
as it happened.真巧, 他们全出去了。】 However, according to a widely accepted theory, the universe
A．all the time
B．at one time
C．at a time
D．at times
3．—I am afraid I can’t return the book to you before Friday.
—________.
A．Don’t be afraid B．Be careful
C．Not at all
Smoking is harmful to your health.吸烟有害健康。 do sb. harm/ do harm to sb.对某人有害； do more harm
than good 弊大于利； There is no harm in (sb’s) doing sth.(= It does no harm (for sb.) to do sth.)做某事无害
正的主语是 whether the shape would last or not.】 It exploded loudly with fire and rock. “大爆炸”发生时
高中英语必修三 - 课文详解 Book 3 - unit 4
to arrive in time.相信他会及时到达。 against time争分夺秒地，尽快地
eg. he was working against time.他正争分夺秒地工作。 ahead of time提
前，提早 eg. We completed the work five days ahead of time.我们提前五
nitrogen, water vapour and other gases, which were to make the
earth’s atmosphere.他们最终形成了碳、氮、水蒸气和其它气体，而这
些就构成了地球的大气。【注释：in time (1)迟早, 最后 eg. In time
you'll forget him.你迟早会忘了他的。 (2)及时, 不迟 eg. He is believed
成一个固定的球体。【注释：settle into有头绪, 上正轨 eg. Things
soon settled into shape.事情很快有了头绪。】 The earth became so
violent that it was not clear whether the shape would last or not.地
happened.真巧, 他们全出去了。】 However, according to a widely
accepted theory, the universe began with a “Big Bang” that threw
matter in all directions.然而，根据一个广泛接受的理论，宇宙开始于
家
multiply vi. & vt.乘； gravity n.万有引力；
人教版高中英语必修三Unit4Astronomy：thescienceofthestars课文知识点解析
Unit 4 Astronomy：the science of the stars 课文知识点解析Warming UpDiscuss in pairs which science subjects are part of medicine,biochemistry,geophysics or astronomy.分组讨论哪些科学科目是医学，生物化学，地理学或天文学的一部分。
in pairs=two at a time=in twos一次两个，两个一组e.g.Shoes and slippers are sold in pairs.鞋子都是论双卖的。
注意：in+数词/名词（数词/名词以复数形式）e.g.in threes and fours 三三两两的in groups 成群的思维拓展in在这里表示：以……数量/形式、形状等。
e.g.Tourists queue in thousands to see the tomb. 游客数以千计排着队看陵墓。
Reading1.The problem was that the earth became violent because it was not clearwhether the solid shape was to last or not.这一问题变得越来越不确定，因为这一球体形状是否能够维持尚未明朗。
(1)violent adj. 猛烈的；激烈的；强暴的a violent language 激烈的语言a violent storm 猛烈的风暴a violent 猛攻思维拓展violence n.［U］1.暴力，强暴2.猛烈，剧烈，强烈(2)whether...or not... “是……还是……”在这里是主语从句,它还可以引导宾语从句、表语从句、同位语从句和状语从句。
e.g.I don’t know whether he will agree with me.（宾语）我不知道他是否同意我的观点。
新人教版高中英语必修三课文原文及翻译(word精校版)
新人教版高中英语必修三课文原文及翻译(word精校版) Unit1FESTIVALSANDCELEBRATIONS节日和庆典ReadingandthinkingWHYDOWECELEBRATEFESTIVALS我们为什么庆祝节日？世界各地都庆祝各种节日。
节日的由来五花八门,比如时节、宗教、著名人物及重大事件。
每个节日都有它不同的风俗和独特的魅力。
然而,无论节日多么迥异,在世界各地,分享快乐、感恩、友爱或和平的精神存在于所有节日之中。
在所有的传统节日中，丰收节几乎可见于每一种文化之中。
这一重大的农业节日在所有农作物收成后来临。
人们举行庆祝活动，对这一年收获的食物表达感恩。
在古埃及，人们于春季（即埃及的丰收季）庆祝丰收节。
庆祝活动主要是游行和丰盛的筵席，载歌载舞，并伴有体育活动。
如今，在一些欧洲国家，人们用鲜花和水果来装饰教堂和市政厅，聚在一起共享大餐，以示庆祝。
在中国的中秋节，家家户户欢聚一堂，观赏明月，品尝美味的月饼。
风俗在节日中扮演重要角色，但有时也随时间而变化。
随着现代社会的发展和新思想的传播，有些传统会渐渐消失，而另一些传统则得以建立。
中国春节燃放鞭炮以驱鬼神、贺新年这一典型风俗就是一个例子。
如今，为了避免空气污染，许多大城市已经摒弃了这一风俗。
另一个例子是万圣节，虽然起源于宗教，万圣节渐渐成了孩子们纵情玩乐的一个节日。
2节日是社会的一个重要组成部分。
节日反映了人类的愿望、信仰、信念以及对生活的态度。
节日是让我们放松心情、享受生活、暂时忘却工作的时刻。
节日让我们了解我们来自何方、我们是谁、我们应该感恩什么。
此外，如果你仔细研究各种节日，你会惊奇地发现不同的文化实际上有很多共同之处。
ReadingforwritingMYAMAZINGNAADAME某PERIENCE我的那达慕大会奇妙经历今年，我第一次体验了中国内蒙古自治区的那达慕大会。
该节日于每年农历六月初四开始的，通常为期3天。
“那达慕”在蒙古语中的意思是“游戏”，主要表现为三大赛事：赛马、摔跤和射箭，每项运动都动人心魄！Onthefirtday,IetofftothegameearlywithmyfriendBurin.Iawalotof peoplewearingfancyMongolianrobe.Somewerefeedingtheirhore,omewere practiingarchery,andotherwerechattingortakingphotograph.Burintol dmethatMongoliantraveleveryyearfromnearandfartoattendthefetival, jutatheirancetorhaddoneforcenturie.(那达慕大会的)第一天，我和好友布林早早出发来到了会场。
(完整word)高一英语人教版必修三全册课文内容,推荐文档
Unit 1 Festivals around the worldFESTIVALS AND CELEBRATIONSFestivals and celebrations of all kinds have been held everywhere since ancient times. Most ancient festivals would celebrate the end of cold weather, planting in spring and harvest in autumn. Sometimes celebrations would be held after hunters had caught animals. At that time people would starve if food was difficult to find, especially during the cold winter months. Today’s festivals have many origins, some religious, some seasonal, and some for special people or events. Festivals of the deadSome festivals are held to honour the dead or to satisfy the ancestors, who might return either to help or to do harm. For the Japanese festival Obon, people should go to clean graves and light incense in memory of their ancestors. They also light lamps and play music because they think that will lead the ancestors back to earth. In Mexico, people celebrate the Day of the Dead in early November. On this important feast day, people eat food in the shape of skulls and cakes with “bones” on them. They offer food, flowers and gifts to the dead. The Western holiday Halloween also had its origin in old beliefs about the return of the spirits of dead people. It is now a children’s festival, when they can dress up and go to their neighbours’ homes to ask for sweets. If the neighbours do not give any sweets, the children might play a trick on them.Festivals to Honour PeopleFestivals can also be held to honour famous people. The Dragon Boat Festival in China honours the famous ancient poet, Qu Yuan. In the USA, Columbus Day is in memory of the arrival of Christopher Columbus in the New World. India has a national festival on October 2 to honour Mohandas Gandhi, the leader who helped gain India’s independence from Britain.Harvest FestivalsHarvest and Thanksgiving festivals can be very happy events. People are grateful because their food is gathered for the winter and the agricultural work is over. In European countries, people will usually decorate churches and town halls with flowers and fruit, and will get together to have meals. Some people might win awards for their farm produce, like the biggest watermelon or the most handsome rooster. China and Japan have mid-autumn festivals when people admire the moon and in China enjoy moon-cakes.Spring FestivalsThe most energetic and important festivals are the ones that look forward to the end of winter and to the coming of spring. At the Spring Festival in China, people eat dumplings, fish and meat and may give children lucky money in red paper. There are dragon dances and carnivals, and families celebrate the Lunar New Year together. Some Western countries have very exciting carnivals, which take place forty days before Easter, usually in February. These carnivals might include parades, dancing in the streets day and night, loud music and colourful clothing of al kinds. Easter is an important religious and social festival for Christians around the world. It celebrates the return of Jesus from the dead and the coming of spring and new life. Japan’s Cherry Blossom Festival happens a little later. The country, covered with cherry tree flowers, looks as though it is covered with pink snow.People love to get together to eat, drink and have fun with each other. Festivals let us enjoy life, be proud of our customs and forget our work for a little while.A SAD LOVE STORYLI Fang was heart-broken. It was Valentine’s Day and Hu Jin had said she would meet him at the coffee shop after work. But she didn’t turn up. She could be with her friends right now laughing at him. She said she would be there at seven o’clock, and he thought she would keep her word. He had looked forward to meeting her all day, and now he was alone with his roses and chocolates, like a fool. Well, he was not going to hold his breath for her to apologize. He would drown his sadness in coffee.It was obvious that the manager of the coffee shop was waiting for Li Fang to leave - he wiped the tables, then sat down and turned on the TV - just what Li Fang needed! A sad Chinese story about lost love.The granddaughter of the Goddess of Heaven visited the earth. Her name was Zhinü, the weaving girl. While she was on earth she met the herd boy Niulang and they fell in love. (“Just like me and Hu Jin,” thought Li Fang.) They got married secretly, and they were very happy. (“We could be like that,” thought Li Fang.) When the Goddess of Heaven knew that her granddaughter was married to a human, she became very angry and made the weaving girl return to Heaven. Niu Lang tried to follow her, but the river of stars, the Milky Way, stopped him. Finding that Zhinü was heart-broken, her grandmother finally decided to let the couple cross the Milky Way to meet once a year. Magpies make a bridge of their wings so the couple can cross the river to meet on the seventh day of the seventh lunar month. People in China hope that the weather will be fine on that day, because if it is raining, it means that Zhinü is weeping and the couple won’t be able to meet.The announcer said, “This is the story of Qiqiao Festival. When foreigners hear about the story, they call it a Chinese Valentine’s story. It’s a fine day today, so I hope you can call all meet the one you love.”As Li Fang set off for home, he thought, “I guess Hu Jin doesn’t love me. I’ll just throw these flowers and chocolates away. I don’t want them to remind me of her.” So he did.As he sadly passed the tea shop on the corner on his way home, he heard a voice calling him. There was Hu Jin waving at him and calling, “Why are you so late? I’ve been waiting for you for a long time! And I have a gift for you!”What would he do? He had thrown away her Valentine gifts! She would never forgive him. This would not be a happy Valentine’s Day! Unit 2 Healthy eating COME AND EAT HERE (I)Wang Peng sat in his empty restaurant feeling very frustrated. It had been a very strange morning. Usually he got up early and prepared his menu of barbecued mutton kebabs, roast pork, stir-fried vegetables and fried rice. Then by lunchtime they would all be sold. By now his restaurant ought to be full of people. But not today! Why was that? What could have happened? He thought of his mutton, beef and bacon cooked in the hottest, finest oil. His cola was sugary and cold, and his ice cream was made of milk, cream and delicious fruit. “Nothing could be better,” he thought. Suddenly he saw his friend Li Chang hurrying by. “Hello, Lao Li,” he called. “Your usual?” But Li Chang seemed not to hear. What was the matter? Something terrible must have happened if Li Chang was not coming to eat in his restaurant as he always did.Wang Peng followed Li Chang into a new small restaurant. He saw a sign at the door.Tired of all that fat? Want to lose weight?Come inside Yong Hui’s slimming restaurant.Only slimming foods served here.Make yourself thin again!Curiosity drove Wang Peng inside. It was full of people. The hostess, a very thin lady, came forward. “Welcome,” she said. “My name is Yong Hui. I’ll help you lose weight and be fit in two weeks if you eat here every day.” Then she gave a menu to Wang Peng. There were few choices of food and drink on it: just rice, raw vegetables served in vinegar, fruit and water. Wang Peng was amazed at this and especially at the prices. It cost more than a good meal in his restaurant! He could not believe his eyes. He threw down the menu and hurried outside. On his way home he thought about his own menu. Did it make people fat? Perhaps he should go to the library and find out. He could not have Yong Hui getting away with telling people lies! He had better do some research!At the library Wang Peng was surprised to find that his restaurant served far too much fat and Yong Hui’s far too little. Even though her customers might get thin after eating Yong Hui’s food, they were not eating enough energy-giving food to keep them fit. They would become tired very quickly. Wang Peng felt more hopeful as he drove back home. Perhaps with a discount and a new sign he could win his customers back. So he wrote:Want to feel fit and energetic?Come and eat here! Discounts today!Our food gives you energy all day!The competition between the two restaurants was on!COME AND EAT HERE (II)A week later, Wang Peng’s restaurant was nearly full and he felt happier. Perhaps he would be able to earn his living after all and not have to close his restaurant. He did not look forward to being in debt because his restaurant was no longer popular. He smiled as he welcomed some customers warmly at the door but the smile left his face when he saw Yong Hui walking in. She did not look happy but glared at him. “May I ask what you were doing in my restaurant the other day? I thought you were a new customer and now I know that you only came to spy on me and my menu,” she shouted. “Please excuse me,” he calmly explained, “I wanted to know where all my customers had gone last week. I followed one of them and found them in your restaurant. I don’t want to upset you, but I found your menu so limited that I stopped worrying and started advertising the benefits of my food. Why don’t you sit down and try a meal?”Yong Hui agreed to stay and soon they were both enjoying dumplings and breast of chicken cooked with garlic. When they were served the ice cream, Yong Hui began to look ill. “I feel sick with all this fat and heavy food,” she said, “I miss my vegetables and fruit.” Wang Peng was enjoying a second plate of dumplings so he sighed. “Yes,” he added, “and I would miss my dumplings and fatty pork. Don’t you get tired quickly?” “Well, I do have to rest a lot,” admitted Yong Hui. “But don’t you think it would be better if you were a bit thinner? I’m sure you’d feel much healthier.”They began to talk about menus and balanced diets. “According to my research, neither your restaurant nor mine offers a balanced diet,” explained Wang Peng. “I don’t offer enough fibre and you don’t offer enough body-building and energy-giving food. Perhaps we ought to combine our ideas and provide a balanced menu with food full of energy and fibre.” So that is what they did. They served raw vegetables with the hamburgers and boiled the potatoes rather than fried them.They served fresh fruit with the ice cream. In this way they cut down the fat and increased the fibre in the meal. Their balanced diets became such a success that before long Wang Peng became slimmer and Yong Hui put on more weight. After some time the two found that their business cooperation had turned into a personal one. Finally they got married and live happily ever after.Unit 3 The Million Pound Bank NoteTHE MILLION POUND BANK NOTEAct I, Scene 3NARRATOR: It is the summer of 1903. Two old and wealthy brothers, Roderick and Oliver, have made a bet. Oliver believes that with a million pound bank note a man could survive a month in London. His brother Roderick doubts it. At this moment, they see a penniless young man wandering on the pavement outside their house. It is Henry Adams, an American businessman, who is lost in London and does not know what he should do.RODERICK: Young man, would you step inside a moment, please?HENRY: Who? Me, sir?RODERICK: Yes, you.OLIVER: Through the front door on your left.HENRY: (a servant opens a door) Thanks.SERVANT: Good morning, sir. Would you please come in? Permit me to lead the way, sir. OLIVER: (Henry enters) Thank you, James. That will be all.RODERICK: How do you do, Mr … er …?HENRY: Adams. Henry Adams.OLIVER: Come and sit down, Mr Adams.HENRY: Thank you.RODERICK: Your are an American?HENRY: That’s right, from San Francisco.RODERICK: How well do you know London?HENRY: Not at all. It’s my first trip here.RODERICK: I wonder, Mr Adams, if you mind us asking a few questions?HENRY: Not at all. Go right ahead.RODERICK: May we ask what you’re doing in this country and what your plans are? HENRY: Well, I can’t say that I have any plans. I’m hoping to find work. As a matter of fact,I landed in Britain by accident.RODERICK: How is that possible?HENRY: Well, you see, back home I have my own boat. About a month ago, I was sailing out of the bay… (his eyes stare at what is left of the brothers’ dinner on the table) OLIVER: Well, go on.HENRY: Oh, yes. Well, towards nightfall I found myself carried out to sea by a strong wind.It was all my fault. I didn’t know whether I could survive until morning. The nextmorning I’d just about given myself up for lost when I was spotted by a ship. OLIVER: And it was the ship that brought you to England.HENRY: Yes. The fact is that I earned my passage by working as an unpaid hand, which accounts for my appearance. I went to the American embassy to seek help, but …(the brothers smile at each other)RODERICK: Well, you mustn’t worry about that. It’s an advantage.HENRY: I’m afraid I don’t quite follow you, sir.RODERICK: Tell us, Mr Adams, what sort of work did you do in America?HENRY: I worked for a mining company. Could you offer me some kind of work here? RODERICK: Patience, Mr Adams. If you don’t mind, may I ask how much money you have? HENRY: Well, to be honest, I have none.RODERICK: (happily) What luck! Brother, what luck! (claps his hands together)HENRY: Well, it may seem lucky to you but not to me! On the contrary, in fact. If this is your idea of some kind of joke, I don’t think it’s very funny. (Henry stands up toleave) Now if you’ll excuse me, I think I’ll be on my way.RODERICK: Please don’t go Mr Adams. You mustn’t think we don’t care about you. Oliver, give him the letter.OLIVER: Yes, the letter. (gets it from a desk and gives it to Henry like a gift) The letter. HENRY: (taking it carefully) For me?RODERICK: For you. (Henry starts to open it) Oh, no, you mustn’t open it. Not yet. You can’t open it until two o’clock.HENRY: Oh, this is silly.RODERICK: Not silly. There’s money in it. (calls to the servant) James?HENRY: Oh, no. I don’t want your charity. I just want an honest job.RODERICK: We know you’re hard-working. That’s why we have given you the letter. James, show Mr Adams out.OLIVER: Good luck, Mr Adams.HENRY: Well, why don’t you explain what this is all about?RODERICK: You’ll soon know. (looks at the clock) In exactly an hour and a half. SERVANT: This way, sir.RODERICK: Mr Adams, not until 2 o’clock. Promise?HENRY: Promise. goodbye.Unit 4 Astronomy: the science of the starsHOW LIFE BEGAN ON THE EARTHNo one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory, the universe began with a “Big Bang” that threw matter in all directions. After that, atoms began to form and combine to create stars and other bodies.For several billion years after the “Big Bang”, the earth was still just a cloud of dust. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape would last or not. It exploded loudly with fire and rock. They were in time to produce carbon dioxide, nitrogen, water vapour and other gases, which were to make the earth’s atmosphere. What is even moreimportant is that as the earth cooled down, water began to appear on its surface.Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.Many millions of years later, the first extremely small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians, were able to live on land as well as in the water. Later when the plants grew into forests, reptiles appeared for the first time. They produced young generally by laying eggs. After that, some huge animals, called dinosaurs, developed. They laid eggs too and existed on the earth for more than 140 million years. However, 65 million years ago the age of the dinosaurs ended. Why they suddenly disappeared still remains a mystery. This disappearance made possible the rise of mammals on the earth. These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. As a result of this, many scientists believe the earth may become too hot to live on. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.A VISIT TO THE MOONLast month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!Before we left, Li Yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth’s gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. “Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground.” I asked. “We are too far from the earth now to feel its pull,” he explained, “so we feel as if no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s.” I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.When we got there, I wanted to explore immediately. “Come on,” I said. “If you are right, my weight will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!” I laughed and climbed down the steps from the spaceship. But when I tried to step forward. I found I was carried twice as far as on the earth and fell over. “Oh dear,” I cried, “walking does need a bit of practice now that gravity has changed.” After a while I got the hang of it and we began to enjoyourselves.Leaving the moon’s gravity was not as painful as leaving the earth’s. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased. Again we were pushed hard into our seats as we came back to land. “That was very exhausting but very exciting too,” I said. “Now I know much more about gravity! Do you think we could visit some stars next time?” “Of course,” he smiled, “which star would you like to go to?”Unit 5 CANADA- “THE TRUE NORTH”A TRIP ON “THE TRUE NORTH”Li Daiyu and her cousin Liu Qian were on a trip to Canada to visit their cousins in Montreal on the Atlantic coast. Rather than take the aeroplane all the way, they decided to fly to Vancouver and then take the train from west to east across Canada. The thought that they could cross the whole continent was exciting.Their friend, Danny Lin, was waiting at the airport. He was going to take them and their baggage to catch “The True North”, the cross-Canada train. On the way to the station, he chatted about their trip. “You’re going to see some great scenery. Going eastward, you’ll pass mountains and thousands of lakes and forests, as well as wide rivers and large cities. Some people have the idea that you can cross Canada in less than five days, but they forget the fact that Canada is 5,500 kilometres from coast to coast. Here in Vancouver, you’re in Canada’s warmest part. People say it is Canada’s most popular cities to live in. Its population is increasing rapidly. The coast north of Vancouver has some of the oldest and most beautiful forests in the world. It is so wet there that the trees are extremely tall, some measuring over 90 metres.”That afternoon aboard the train, the cousins settled down in their seats. Earlier that day, when they crossed the Rocky Mountains, they managed to catch sight of some mountain goats and even a grizzly bear and an eagle. Their next stop was Calgary, which is famous for the Calgary Stampede. Cowboys from all over the world come to compete in the Stampede. Many of them have a gift for riding wild horses and can win thousands of dollars in prizes.After two days’ travel, the girls began to realize that Canada is quite empty. At school, they had learned that most Canadians live within a few hundred kilometres of the USA border, and Canada’s population is only slightly over thirty million, but now they were amazed to see such an empty country. They went through a wheat-growing province and saw farms that covered thousands of acres. After dinner, they were back in an urban area, the busy port city of Thunder Bay at the top of the Great Lakes. The girls were surprised at the fact that ocean ships can sail up the Great Lakes. Because of the Great Lakes, they learned, Canada has more fresh water than any other country in the world. In fact, it has one-third of the world’s total fresh water, and much of it is in the Great Lakes.That night as they slept, the train rushed across the top of Lake Superior, through the great forests and southward towards Toronto.。
人教版高中英语必修3unit4课文知识点详解
观察思考 The idea exists only in the minds of poets.
这种想法是诗人才有的。
We can’t exist without food or water. 没有食物和水我们就不能生存。
I can hardly exist on the wage that I’m getting;there is no money for luxuries. 我靠我挣的工资简直难以糊口，根本没钱享受。 归纳总结 exist ________________。 vi.有，存在；生存 exist in存在于„„之中 exist on靠„„为生 exist by靠„„生存 existing adj.目前的；现存的 existence n.存在；生存 be in existence存在 come into existence开始存在；成立 bring into existence使发生，产生
the exit.
重点短语与句型
4.break out
We watched,amazed as fire __________ on the broke out outside of the spaceship as the earth’s
gravity increased.(回归课本P31)
观察思考
_______的___语，宾语从句可作介词的宾语。 宾 about
பைடு நூலகம்
2.No one knows exactly how the earth began,as it happened so long ago. 没有人准确地知道地
球的起源，因为那发生在很久以前。
考点提炼 本句为复合句,as引导的从句表示____。 原因
(完整版)高中英语必修三-课文详解Book3-unit4
必修三Unit 4 Astronomy: the Science Of The Stars天文学：恒星的科学II．Reading HOW LIFE BEGAN ON THE EARTH 地球上的生命是怎样开始的No one knows exactly how the earth began, as it happened so long ago. 由于地球的产生是那么的久远，所以没有人确切知道地球是怎样产生的。
【注释：as it happened 碰巧eg. They were all out, as it happened.真巧, 他们全出去了。
】However, according to a widely accepted theory, the universe began with a “Big Bang”that threw matter in all directions.然而，根据一个广泛接受的理论，宇宙开始于一次“创世大爆炸”，该爆炸将物质抛向各个方向。
【注释：in all directions四面八方；各个方向eg. The birds flew away in all directions when he fired a salute with a“bang”.当他“砰”的一声鸣礼炮时，鸟飞向各个方向。
】After that, atoms began to form and combine to create stars and other bodies.之后，原子开始形成，并结合形成恒星和其他物体。
For several billion years after the “Big Bang”, the earth was still just a cloud of dust.就在“宇宙大爆炸”之后的几十亿年间，地球依然是一团尘埃。
What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.这一团尘埃会变成什么还不能确定，直到45亿至38亿年前，这团尘埃才形成一个固定的球体。
(完整版)高中英语必修三-课文详解Book3-unit1
必修三Unit 1 Festivals around the World 世界各地的节日I. Vocabularytake place 发生beauty n.美；美人harvest n. & vt. Vi.收获；收割celebration n.庆祝；祝贺starve vi. & vt.（使）饿死；饿得要死origin n.起源；由来；起因religious adj.宗教上的；信奉宗教的；虔诚的seasonal adj.季节的；季节性的ancestor n.祖先；祖宗grave n.坟墓；墓地incense n.熏香；熏香的烟in memory of 纪念；追念feast n.节日；盛宴skull n.头脑；头骨Halloween n.万圣节前夕；诸圣日前夕belief n.信任；信心；信仰dress up盛装；打扮；装饰trick n.诡计；恶作剧；窍门vt.欺骗；诈骗play a trick on搞恶作剧；开玩笑magpie n.喜鹊remind…of…提醒…想起… forgive vt.原谅；饶恕poet n.诗人arrival n.到来；到达；到达者gain vt.获得；得到independence n.独立；自主independent adj.独立的；自主的gather vt. & vi. n.搜集；集合；聚集agriculture n.农业；农艺；农学agricultural adj.农业的；农艺的award n.奖；奖品vt.授予；判定produce n.产品；农产品rooster n.雄禽；公鸡admire vt.赞美；钦佩；羡慕energetic adj.充满活力的；精力充沛的；积极的look forward to期望；期待；盼望carnival n.狂欢节；（四旬节前的）饮宴狂欢；嘉年华（会）lunar adj.月的；月亮的；阴历的Easter n.（耶稣）复活节parade n.游行；阅兵；检阅day andnight日夜；昼夜；整天the MilkyWay 银河weave vt. & vi.编织；（使）迂回前进herd n.牧群；兽群set off出发；动身；使爆炸Christian n.基督徒；信徒adj.基督教的；信基督教的Jesus n.耶稣cherry n.樱桃；樱桃树blossom n.花；vi.开花as though 好像have fun with玩得开心custom n.习惯；风俗worldwideadj.遍及世界的；世界性的rosebud n.玫瑰花蕾nesessity n.必要性；需要permission n.许可；允许prediction n.预言；预报；预告fashion n.样子；方式；时尚parking lot 停车场Valentine 'Day 情人节turn up 出现；到场keep one's word守信用；履行诺言hold one 'breath 屏息；屏气apologize vi.道歉；辩白drown vt.& vi.淹没；溺死；淹死obvious adj.明显的；显而易见的wipe vt.擦；擦去；揩weep vi.哭泣；流泪n.哭；哭泣II . Reading FESTIV ALS AND CELEBRATIONS 节日与庆祝Festivals and celebrations of all kinds have been held everywheresince ancient times.译文:从古自今各地都举行过各式各样的节日和庆典。
高中英语必修三---课文详解Book-3---unit-4教学文稿
必修三Unit 4 Astronomy: the Science Of The Stars天文学：恒星的科学I．Vocabularyastronomy n.天文学astronomer n.天文学家solar system 太阳系religion n.宗教；宗教信仰theory n.学说；理论Big Bang宇宙大爆炸；创世大爆炸atom n.原子globe n.球体；地球仪；地球violent adj.猛烈的；激烈的carbon n.碳nitrogen n.氮vapour n.蒸汽；水蒸气atmosphere n.大气层；气氛fundamental adj.基本的；基础的dissolve vt. & vi.溶解；解散harmful adj.有害的get the hang of熟悉；掌握；理解break out突发；爆发acid n.酸reaction n.反应；回应multiply vi. & vt.乘；增加oxygen n.氧shellfish n.水生有壳动物amphibian n.两栖动物reptile n.爬行动物；爬虫lay eggs 下蛋dinosaur n.恐龙exist vi.存在；生存mammal n.哺乳动物give birth to产生；分娩in one’s turn轮到某人；接着carbon dioxide二氧化碳prevent…from…阻止；制止puzzle n.迷；难题vt. & vi.exhaust vt.用尽；耗尽；使精疲力竭cabin n.小屋；船舱biologist n.生物学家biology n.生物学gravity n.万有引力；重力satellite n.卫星；人造卫星gentle adj.温和的；文雅的geologist n.地质学家physicists n.物理学家block out 挡住（光线）extinct adj.灭绝的；绝种的climate n.气候comet n.彗星crash vi. & vt.碰撞；坠落lessen vi. & vt.减少；减轻cheer up 感到高兴；感到兴奋weightlessly adv.失重地mass n.质量；团；块；大量now that 既然watch out密切注意；当心；提防II．Reading HOW LIFE BEGAN ON THE EARTH 地球上的生命是怎样开始的No one knows exactly how the earth began, as it happened so long ago. 由于地球的产生是那么的久远，所以没有人确切知道地球是怎样产生的。
(完整版)高中英语必修三-课文详解Book3-unit2
必修三Unit 2 Healthy Eating健康饮食II．Reading COME AND EAT HERE 到这里吃Wang peng sat in his empty restaurant feeling very frustrated.译文：王平坐在空荡的餐馆里，感到非常地沮丧。
【注释：feeling very frustrated是现在分词短语作状语，表示伴随的情况，与句子主语之间的逻辑关系是主谓关系。
考题：1.(08辽-27) He was busy writing a story, only ____ once in a while to smoke a cigarette.A. to stopB. stoppingC. to have stoppedD. having stopped2.(08申30) My sister, an inexperienced rider, was found sitting on the bicycle ___ to balance it.A. having triedB. tryingC. to tryD. tried 】It had been a very strange morning.译文：先前已经出现过一个奇怪的早上。
Usually he got up early and prepared his menu of barbecued mutton kebabs, roast pork, stir-fried vegetables and fried rice.译文：通常他起得早，准备菜单：烤羊肉串、烤肉、爆炒蔬菜以及炒米饭。
Then by lunchtime they would all be sold.译文：这样到午餐时都已经卖完了。
By now his restaurant ought to be full of people.译文：到现在他的餐馆里应该是满客流了。
人教必修三unit4课文精讲
[句型] begin with/start with 以……开始， 从……着手
[仿写] 认识从实践开始。 Knowledge_b_e_g_i_n_s_w__it_h__p_r_a_ct_i_c_e_______.
what 引导的主语从句，what 作become 的表语，when引导的是定语从句，
• 没有人确切知道地球是怎样开始形成的，因为在很早很早以前它 就形成了。然而，一种普遍为人们所接受的理论是：宇宙起源于 一次大爆炸，这次大爆炸将物质投射到四面八方。然后，原子开 始形成并结合成恒星和其他天体。
1.according to 根据 2.widely accepted 广泛接受的 3.began with=start with 起源于，开始于 4.in all directions=朝四面八方
It is no wonder that he has passed the exam.
主语从句
that引导表语从句
• What many scientists believe is that the continued presence of water
allowed the earth to dissolve harmful gases and acids into the oceans
III. Fast-reading
1.Do you believe in such stories? Are they based on science?
2. In this unit, we’ll learn something more scientific. 3. What’s the title of the text?
4. From the title, we can predict that the text may tell us the origin of life on the earth.