高一英语(下)必修三Unit 4 Warming up and reading

Unit 4 Astronomy: the science of the stars Warming up & ReadingTextbook Edition: NSEC Book3Sections: ModuleⅠUnit4 Astronomy: the science of the starsTopic : How Life Began On The EarthTeaching Materials Analysis教学分析This lesson is mainly a reading skills training class.How life began on the earth, is the passage from Student’s Book 3 Unit 4 , is concerned with astronomy and how human beings first evolved on the earth and understand the universe around them. This lesson is the first part of Unit 4. Focusing on the topic of the unit, astronomy, students are trained to learn the knowledge about astronomy and the language used to describe the development of life through speaking and reading activities. Most importantly, students are supposed to command the effective way of reading a expository writing written in the order of time and get trained to improve their reading ability, like skimming, summarizing the main idea of the passage, guessing the meaning of new words in the context and so on.Teaching goals 教学目标1). Target language目标语言a. Words and expressions: astronomy, theory, atom, billion, globe, violent, carbon, atmosphere, fundamental, harmful, acid, multiply, oxygen, exist, prevent…from, block out, cheer up, now thatb. Grammar: Noun Clauses as the subjectWhat it was to become was a mystery. (主语从句)It was not clear whether the solid shape was to last or not. (主语从句)2). Ability goals 能力目标a. Enable Ss to talk about the science of the stars, the development of life.b. Enable students to improve their speaking skills and reading ability.3). Learning ability goals 学能目标a. Enable Ss to learn how to talk about the beginning of life on the earth.b. Foster the Ss’ interests of science and lead the Ss to study scientifically.c. Train the Ss’ creativity and expand their imagination.Teaching important points教学重点1). Talk about the beginning of life on the earth.2). Discuss the order of development of life.Teaching difficult points教学难点Understand the beginning of life on the earth.Teaching methods教学方法1). Task-based teaching and learning2). Cooperative learning3). Discussion and practice4). Fast-reading, scanning and careful-readingTeaching aids教具准备Multimedia and PowerPointTeaching procedures & ways教学过程与方式Step 1 Lead inTalk about science subjectsT: Good morning/afternoon, everyone. What class do you have today?S1: Maths, English, Chinese, physics, history, and geology.T: What other subjects do you have in school?S2: Computer, chemistry, biology, music, PE, and politics.T: Which is your favourite? Why?S3: My favourite one is …because it’s very interesting/exciting/instructive/…S4: I like …best because …T: Which ones are science subjects?S5: Physics, chemistry, biology, geology and mathematics.T: All these subjects play an important role in the study of science. What subjects are used to study medicine? How about biochemistry? What about geophysics? What subjects are part of astronomy?S6：Mathematics and physics.T: Can you understand the following combined science subjects?→physics + mathematics = astronomy→geology + physics = geophysics（地球物理学）T: What does astronomy deal with?S7: Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, moon, and stars), gas, and dust within it.T: What do we call people who study astronomy?S8: Astronomer.Step 2 Warming upTalk about universe and solar systemT: Let’s follow this astronomer to learn about universe. How did the universe come into being?S9: After the “Big Bang”, the universe came into being.T: Do you know the solar system in the universe? What is it made up of?S10: The solar system contains eight planets and many comets and other objects.(Note：According to the present day scientific study, there are only eight planets, with the Pluto excluded. Why the planets remove the Pluto?)T: Can you name the eight planets?S11: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.T: Which planet do we live on? Can you describe what it looks like?S12: Earth. It supports a variety of life and 70% of the earth is covered with seas or oceans.T: Is there life on other planets?S13: Not yet.T: Right, there is a famous saying “Water is the headspring of life”. But how did the water appear on the earth? If you want to get the correct answer, please read the passage on P25. It will tell you.Step 3 ReadingTask1: Fast-readingFast reading for the main idea and the structure1. Ask the students to number the paragraphs and pay attention to the first and the last sentences of each paragraph.2. Ask the students to read the whole passage quickly and match the main idea of each paragraph.Para. 1 The development of plants and animalsPara. 2 The importance of waterPara. 3 The formation of the universePara. 4 The arrival of human beingsPara. 5 The formation of the earthTask2: Scanning (Para1,2,3)the beginning of water& the beginning of life1.Make the Ss read paragraph 1 and answer the following questions. What is the important event(事件) to the earth before the appearance of water?Why is water important for the beginning of life?2. Make the Ss read paragraphs 2-3 and finish the following chart.A cloud of dust →a solid ball →presence of water →small plants grow on the water→shellfish and other fish appear →plants begin to grow on dry land→insects and amphibians appear→retiles appear →dinosaurs appear→mammals appearQ: Why was it necessary for plants to grow before animals?(Plants provided oxygen for animals to breathe.)Task3: Careful-readingRead the text carefully and discuss these questions in pairs.1.Why the earth was different from the other plants?2.Why did the plants grow before the animals came?3.Why did animals first appear in the sea not on the land?4.What is the main difference between reptiles and mammals? Can you give some examples of mammals?Task4: Retell the textSuppose you are Dr. … who studies astronomy. You are invited to give a speech to the school students about the development of life on “Earth Day” (April 22nd).Step4: Cooperative learningLet the Ss read paragraph 4 and think over the problems caused by humans to the earth.Activity 1: Discussing--- How to protect our earth and make it a better place to live on ?Earth is home to us the living things. We ought to take good care of it. Do we human beings look after the earth well? What problems have been caused by humans to the earth? (air/water/earth pollution, global warming, desertification, endangered wildlife…) We make our home earth in danger. If we still keep doing damage to the earth, we will be homeless one day. It is time we took action and protected it. Discuss in groups “ How to protect our earth and make it a better place to live on?”Activity 2: Saving the earthSuppose you are to design an activity for your school on Earth Day, which is intended to call on teachers and students to protect the earth. Work in groups and choose a reporter of your group to report your work. The following points should be included in the report of your activity.◆What the activity is about◆Why the activity is designed◆When and where to do the activity◆Who takes part in the activity◆What to be done in the activityStep5 Homework:1.Read and learn good words, phrases or structures from Reading.2.Retell the text, and then write a summary (about 100 words) of the text in your own words.。

Part 1 Warming Up, Pre⁃reading, Reading and Comprehending I. 根据下面各句句意以及所给单词的首字母或汉语提示词，写出该单词的正确形式（每空一词）。

1. After dark the plants stop producing ________ (氧).2. The ________ (气氛) over dinner was warm and friendly. And everyone talked happily.3. What p________ me is why his books are so popular. I think they are very boring.4. It’s no use trying to pretend that the problem doesn’t ________ (存在).5. She’s got a bad cold and her voice is quite u________ her usual one.6. A v________ storm struck the area last night. Luckily, no one was hurt.7. Our city has a cheap and reliable public transportation ________ (体系).8. No decision had been made, and t________ the situation remained unclear.II. 下面各句中均有一处错误，请找出并改正。

1. It’s so cold to sit outside. Let’s go insid e. ________2. Something must catch fire. The room is filled of thick smoke. ________3. He is unable to go to work as the result of the fall from his horse. ________4. She only allows the children watching television on the weekends. ________5. I’d be very interesting in knowing more about the servic es your firm offers. ___ III. 根据括号内的汉语提示补全下面句子（每空一词）。

高中英语学习材料***鼎尚图文理制作***Unit 4Astronomy：the science of the stars训练一Warming Up and ReadingⅠ.写出下列单词的正确形式1．violence ______(形容词)2．religious ______(名词)3．like(prep.)______(反义词)4．harm______(形容词)5．astronomer______(名词：天文学)6．explode______(名词)7．disappear ______(名词)8．global______(名词)9．develop______(名词)10．existence______(动词)Ⅱ.把下列短语译成英语或汉语1．in all directions ______2．______及时；迟早3．cool down______4．______也，又；和……一样好5．lay eggs ______6．______ 产生；分娩7．in one's turn______8．______ 阻止；制止9．as a result of...______10．______ 依靠；取决于Ⅲ.单词拼写1．As we climbed up the mountain，the dangers and difficulties ______(增加)．2．A solution has not yet been found to the ______(基本的)problems of industrial relations. 3．The gas given off by automobiles is h______ to people's health.4．The present ______(制度)of education needs to be improved.5．It seems good in t______，but it doesn't work in practice.6．Will you help me with this crossword p______？It got me stumped.7．The a______ of the city is very much polluted.8．With the d______ of modern agriculture and industry，our everyday life has improved a lot. 9．G______ speaking，girls are better at learning to speak languages than boys.10．The Chinese government did very well in p______ SARS from spreading.答案：Ⅰ.1.violent 2.religion 3.unlike 4.harmful5.astronomy 6.explosion7.disappearance8.globe9.development10.existⅡ.1.四面八方 2.in time 3.冷却下来；冷静4.as well as 5.下蛋 6.give birth to7.轮到某人；接着8.prevent...from9.由于10.depend onⅢ.1.multiplied 2.fundamental 3.harmful4.system 5.theory 6.puzzle7.atmosphere 8.development9.Generally10.preventing课堂巩固Ⅰ.阅读HOW LIFE BEGAN ON THE EARTH，回答下列问题1．How were stars and other bodies created?A．Atoms combined to create them.B．Clouds of dust combined to create them.C．Water combined to create them.D．Gases combined to create them.2．Which is the most important for life appearing on the earth?A．Fire.B．Rock.C．Water. D．Clouds.3．It can be known from the passage that ______.A．plants and animals appeared on the earth at the same timeB．plants appeared later on the earth than animalsC．early shellfish appeared earlier than plantsD．animals appeared later on the earth than plants4．How many years did dinosaurs exist on the earth?A．More than 140 billion years.B．More than 140 million years.C．More than 140 thousand years.D．More than 140 years.5．Why can the earth become too hot to live on?A．Small clever animals produce more heat.B．Small clever animals produce too much carbon dioxide.C．Small clever animals don't want heat to escape from the earth.D．Small clever animals like to live in a hot planet.Ⅱ.用方框里短语的正确形式填空1．—Did you catch your plane?—Yes，we got there just__________.2.The dish tastes good after it______.3．We are repairing the roof ______painting the walls.4．—Will you go fishing this afternoon?—Well，it all ______the weather.5．Lacey has a back injury that may __________her ______playing in tomorrow's game.6．When school began last summer，most of us met __________.7．Mice scattered __________ when a cat appeared.8．__________ teamwork，they finished the task ahead of time.9．She __________ a fine healthy baby last night in this hospital.10．The soldier managed to __________ the enemy's prison.Ⅲ.选词填空(in time，on time，in no time，at one time，at times，at any time)1．—Why are you in a hurry to leave here?—To get home ______ to bathe the children.2．These buses are never ______ and the passengers are always complaining.3．While I am away，please call me ______ if someone comes to see me.4．You can't imagine this lake used to be a beautiful place in our province ______.5．He rushed out of the kitchen ______ when he heard the shout.6．______ I sit silently and wonder if this kind of job is worth all the effort.答案：Ⅰ.1.A 2.C 3.D 4.B 5.BⅡ.1.in time 2.cools down 3.as well as 4.depends on 5.prevent；from 6.for the first time7.in all directions8.As a result of 9.gave birth to10.escape fromⅢ.1.in time 2.on time 3.at any time4.at one time 5.in no time 6.At times提示：in time“及时”；on time“按时”；in no time“立即，马上”；at one time“曾经”；at times＝sometimes“有时”；at any time“在任何时候”。