必修3 Unit4 Astronomy the science of the stars[Warming up and reading]

Section Ⅲ— Grammar课后篇巩固探究一、根据句意用适当的词填空1.They lost their way in the forest and made matters worse was nighthas helped to save the drowning girl is worth praising.Peter will have a chance to travel abroad next month.the astronomers eat in space is we want to know.he lost his new car upset him a lot.it was?answers the question correctly will be given a prize.he didn’t come yesterday is unknown.we will go there tomorrow or not hasn’t been decided yet.will be sent to help them is very important.he was chosen made us very happy.has happened proves that our prediction is right.you react(做出反应)to what happens.’t matter you win or lose.16.He explained why he did it,but he did it often remained a mystery.No one knew17.It worried the mother a lot she couldn’t afford the medical treatment for herfootball is one of the most popular sports throughout the world.we should put the money is hard to decide.No place seems to be safe.wants the book may have it.in Guangzhou took in students from Sichuan is true.this strange phenomenon.’s not clear whether he can catch the bus.’s still a question when the meeting will be held.made the rescuers very sad that the young man died soon after he was saved.三、翻译句子’ll go camping tomorrow depends on the weather.7.What she couldn’t understand was why fewer and fewer students showed interest in her?9.What made the school proud was that more than 90% of the students had been admitted to key90%多的学生都被重点大学录取了。

Unit 4 Astronomy: the science of the starsWarming Up, Pre-reading and Reading 单元教学目标II．目标语言Period 1 Warming up & reading(1) Teaching goals1. Target languagea重点词汇和短语astronomy, atmosphere, system, violent, solid, explode, carbon, dioxide, oxygen, surface, planet, harmful, development, spread, method, depend, solar system, in time, prevent…from, depend on b重点句子1.What it was to become was a mystery until the dust began to slowly combine into a ball movingaround the sun. P252.It’s exploded loudly with fire and rock, which were in time to produce the water vapour, carbondioxide, oxygen, nitrogen and other gases, which were to make the earth’s atmosphere. P253.It allowed the earth to dissolve harmful gases, which had become part of the earth’s atmosphere,into the oceans and seas. P254.Whether life will continue on the earth for millions of years to come will depend on whether thisproblem can be solved. P262. Ability goalsa. Enable Ss to talk about the science of the stars, the development of life and space travel andgravityWhere do we come from?How did the universe begin?Why is the universe the way it was?How will it end?How much do you know about universe?Do you want to have a space travel?Do you know something about gravity?b. Understand the text and answer the following questions:1.What was there on the earth before life could begin?2.Why do scientists think there has never been life on the moon?3.Why did animals first appear in the seas?4.Why did green plants help life to develop?5.Why were mammals different from other animals?c. Enable the Ss to understand the details about the passage, choosing the correct answer accordingto the text and put the order of development of life into a time line and answer questions.d. Retell the passage using key sentences.3. Learning ability goalsEnable Ss learn how to talk about the beginning of life on the earth.Teaching important pointsa. Talk about the beginning of life on the earth.Why did animals first appear in the seas?Why did green plants help life to develop?b. Discuss the order of development of lifeTeaching difficult pointsa. Understand the beginning of life on the earth.b. Discuss the questions:What will our future be if the earth may become too hot for the lives on it?Why are humans the cleverest animals on the earth?Teaching methodsa.Skimming and scanningb.Asking-and-answering activity to check the Ss’ understanding of the text.c.Individual, pair or group work to finish each task.d.Discussion.Teaching aidsa computerTeaching proceduresStep 1 quizSome questions on PPT.Step 2 lead inIn our solar system eight planets circle around the sun. What are they?(Note：According to the present day scientific study, there are only eight planets, with the Plutoexcluded.)S: The Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.T: Which planet do we live on? Can you describe what it looks like?S: Earth. It supports a variety of life and 70% of the earth is covered with seas or oceans.Step 3 discussionWhere do we come from? Or we can say: Who are our ancestors?Do you know any ancient idea about the beginning of the universe?Pangu separates the sky from the earth.The sky and the earth were at first one blurred entity like an egg. Pangu was born into it. The separation of the sky and the earth took 18,000 years- the yang which was light and pure rose to become the sky, and the yin which was heavy and murky sank to form the earth. Between them was Pangu, who went through nine changes every day, his wisdom, greater than that of the sky and his ability greater than that of the earth. Every day the sky rose ten feet higher, the earth became ten feet thicker, and Pangu grew ten feet taller. Another 18,000 years passed, and there was an extremely high sky, an extremely thick earth, and an extremely tall Pangu. Then came the Three Emperors (the Emperor of the Sky, the Emperor of the Earth, the Emperor of the Men.)So these numbers came into existence and evolve like this. The number begins with one, becomes established at three, is completed at five, prospers at seven, and ends in nine. So the sky is ninety thousand li from the earth.Other legends about the beginning of universeThe Biblical Account"In the beginning God created the heavens and the earth. Now the earth was formless and empty, darkness was over the surface of the deep, and the spirit of God was hovering over the waters. And God said...."Day 1 : God spoke and separated light from darkness creating Day and NightDay 2 : God spoke and separated the water creating sky and oceanDay 3 : God spoke and created dry landDay 4 : God spoke and created the sun, moon, and starsDay 5 : God spoke and created living creatures in the air and seaDay 6 : God spoke and created the land animals and manDay 7 : God rested and blessed this day calling it HolyIndiaBrahma has created the world many times. This creation is repeated every four ages or yugas. There are four yugas in one eon or kalpa. In the beginning of each kalpa the world is a watery chaos.As Brahma thought beings were created. The demons were created by a wind from his rectum. After creating the demons he discarded his body which became night. He assumed a new body and out of his mouth came the shining gods or devas. This body was also discarded and became day. With his next body he created ancestor spirits. With his fourth body Brahma created human beings were created. This discarded body became the moon. With the fifth body Brahma had a strange thought and he created ogres, terrible creatures, that wanted to devour the primordial sea of chaos. In shock at what he had done he then created ghouls, or Gandharvas. Finally he regained his senses and created birds, mammals, plants, and all the other life that we see today.Step 4 appreciationPlay a video for the studentsHow many types of life on the earth have you seen in the video? Name them.Students tell everything they have seen in the video. (Present on the blackboard the new words and a general picture of the topic of this lesson.)Big Bang universe a cloud of dust globe violent atmosphere water plants cells shellfish fish land animals insects amphibians reptiles dinosaurs mammals apes(monkeys) humansStep 5 fast readingHow did life develop through history?Read fast and find out the answers.A cloud of dust →a solid ball →presenceQ: Why was it necessary for plants to grow before animals?(Plants provided oxygen for animals to breathe.)Step 6 RetellingSuppose you are Dr. … who studies astronomy. You are invited to g ive a speech to the school students about the development of life on “Earth Day” (April 22nd).Homework:1.Search the Internet for the information of the development of life.2.Read and learn good words, phrases or structures from Reading.Period 2 reading (2)Step 1 Scanning1 What’s the style of the text?2 What’s the main idea of the text?Step 2 skimmingFind out the main idea of each para.Step 3 careful readingFinish off the chart.Key to the exercise:2.shellfish and all sorts of fish 5.amphibian(on land and in water)7.reptiles(on land) 8.dinosaurs(on land) 9.mammals(on land)T: That’s all for this passage. Now let’s deal with some language points.Step 4 consolidationT or F1.The earth was a cloud of dust before it combined into a ball around the sun.2.The water vapour, carbon dioxide, oxygen, nitrogen formed the earth’s atmosp here.3.The coming of small plants growing in the water made the earth different.nd animals appeared before the green plants on land.5.Dinosaurs produced their young by laying eggs.6.The earth may become too hot if too much carbon dioxide was put into the atmosphere.Step 5 RetellingRetell the text using about 100 words.Notes: Use the two questions and the chart to retell the passage;The possible version below can be used as a material for both retelling and dictation. Retelling:The explosion of the earth produced water vapor, which turned into water when the earth cooled down. Water allowed the earth to dissolve harmful gases into the oceans and seas. That made it possible for life to begin to develop. The arrival of small plants encouraged the development of early shellfish and all sorts of fish. Many millions of years later the first green plants began to appear on land. Later land animals appeared. Some were insects. Others, called amphibians, were able to live on land as well as in the sea. When the plants grew into forests, reptiles appeared for the first time. Later, dinosaurs developed. They became the most important animals on the earthfor millions of years. After they disappeared, mammals became more important. They were the last group of animals and they were different because they produced their young from within their bodies. Small clever animals, with hands and feet, appeared and spread all over the earth. As time went by, they covered the earth and have become the most important animals on the planet.Step 6 discussion1.What should we do with the global warming problem?Suppose: some of you are officials of the government/some of you are ordinary people2.Suppose you were an expert of astronomy, and now you and your workmates are preparing for a meeting whose topic is the beginning & and the prospect(展望) of the life/ human being on the earth. Work in your group, and try to develop your speech!HomeworkRetell the passage according to the form..Remember important language points.English weekly page 4 part 2。

【本讲教育信息】一、教学内容必修3 Unit 4 Astronomy: the science of the stars（一）重点单词（二）重点短语（三）重（难）点句型二、知识精讲（一）重点单词1. system n.[c] 系统；体系；制度systematic adj.He created a new system of teaching foreign languages.他创造了一种新的外语教学体系。

The new system has had a disastrous effect on productivity.新制度对生产率产生了灾难性的影响。

Too much alcohol is bad for the system.过量饮酒对身体有害。

theory n.学说；理论theoretic adj.There are many theories about the origin of life.关于生命起源的学说有很多。

In this way they can better apply theory to practice.这样他们就能更好地把理论运用到实践中去。

Your plan sounds fine in theory it doesn’t work in practice.你的计划在理论上听起来不错，但在实践中无法实施。

2. violent adj. 猛烈的；激烈的；粗暴的violence n.They are launching a violent attack on the enemy.他们对敌人展开了猛烈的进攻。

The class was shocked by his violent language.全班同学对他激烈的言辞感到震惊。

Children should not be allowed to watch violent movies.不应允许儿童看暴力电影。

The young man was charged with robbery with violence.这个年轻人被控暴力抢劫。

---------------------------------------------------------------最新资料推荐------------------------------------------------------人教版高中英语必修三课文翻译人教版高中英语必修三课文翻译人教版高中英语必修三课文翻译译篇一：人教版高中英语必修三课文翻译4-5 Unit 4 Astronomy:the science of the stars Reading 地球上生命的起源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，一种普通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。

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，一种普通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。

大爆炸后好几十亿年过去了，但地球还只是一团尘埃。

随后它会变成什么没人能知道，直到大爆炸后好几十亿年过去了，但地球还只是一团尘埃。

随后它会变成什么没人能知道，直到 38-45 亿年前，这团尘埃才慢慢地形成一个固体的球状物。

地球（开始）变得激烈动荡，不知道这个固体形状是否会继续存1/ 26在下去。

它（地球）猛烈的爆炸喷出了烈火与岩石。

最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。

更为重要的是，地球冷却了下来，地球的表面就开始出现了水。

亿年前，这团尘埃才慢慢地形成一个固体的球状物。

地球（开始）变得激烈动荡，不知道这个固体形状是否会继续存在下去。

它（地球）猛烈的爆炸喷出了烈火与岩石。

最终产生了碳、氮气、水蒸气和其他多种气体，从而形成了地球的大气层。

更为重要的是，地球冷却了下来，地球的表面就开始出现了水。

在火星这些其他行星上都出现了水，但和地球不同的是，这些水后来都消失了。

【本讲教育信息】一. 教学内容：名词性从句——主语从句与同位语从句二. 知识精讲：（一）主语从句1. 概念与引导词在复合句中充当主语的从句就叫做主语从句。

引导主语从句的连接词有that, whether, who, whom, whose, what, which, whoever, whatever, whichever, where , when , why , how Where we shall have the meeting makes no difference.我们在哪开会都无所谓。

That we were invited to a concert this evening is good news to us.我们被邀请去参加今晚的音乐会，这对于我们来说是个好消息。

2. 主语从句需要注意的问题（1）从属连词that在主语从句中不作任何成分，只起连接作用，但不能省略，并且可以用形式主语it代替，把that从句置于句末。

That he will come to the conference has excited every one of us.他要来参加会议使我们每一个人都很激动。

It is decided that the meeting will be put off till next Monday.已决定将会议推迟到下周一。

（2）主语从句常用it作形式主语，常用于以下固定句式中：①It +be +形容词（obvious, natural, surprising, wonderful, possible, likely, certain, necessary, important, strange…）+ that从句，在这类主语从句中，谓语部分常用虚拟语气，即should+动词原形。

It is necessary that one (should) master the skills of operating computers.掌握电脑操作技术是很有必要的。