人教版高一英语必修三unit 4 reading comprehension导学案

New Senior English For China Student’s Book3(Reading Part)P25 Unit 4 Astronomy: the science of the stars(Period 1 Warming up and Reading)I.Warming up: Lead-inGood morning, class! Today, w are going to study Unit 4 Astronomy: the science of the stars. Before we read the text, let’s turn to page 97 and get familiarized with the vocabulary first. Pay attention to the making of the word. Study the prefixes, roots and suffixes in the words.Play a game to learn the names and positions of the planets:Venus is next to Mercury.Earth is the third planet.Mars is between Earth and Jupiter.Neptune is the furthest planet from the sun.Saturn is between Uranus and Jupiter.Mercury is closest to the sun.II. Pre-reading1. Looking and sayingHave you ever wondered how the universe began? Well I'm sure you may have many answers to this question, but I have one that perhaps, you may not have heard of yet. I will be giving you my theory on this subject. Now look at the screen and listen to me telling you something exciting.2. Talking and sharingDo you know how the universe began?In the 1920s in California, astronomer Edwin Hubble observed distant galaxies using an extremely powerful telescope. He made two mind-boggling(unbelievable) discoveries.First, Hubble fig ured out that the Milky Way isn’t the only galaxy. He realized that faint, cloud-like objects in the night sky are actually other galaxies far, far away. The Milky Way is just one of billions of galaxies.Second, Hubble discovered that the galaxies are constantly moving away from each other. In other words, the universe is expanding. The biggest thing that we know about is getting bigger all the time.A few years later, Belgian astronomer Georges Lemaître used Hubble‘s amazing discoveries to suggest an an swer to a big astronomy question: “How did the universe begin?”III. Reading1. Listening and reading aloudNow please listen to the recording and then read the text aloud. Pay attention to how the native speaker is reading along and where the pauses are within each sentence. I will play the tape twice and you shall read aloud twice, too.2.Reading and underliningNext you are to read and underline all the useful expressions or collocations in the passage. Copy them into your notebook after class as homework.3. Reading and transferring informationRead the passage carefully and analyse its structure. Write down the main idea for each paragraph.4. Reading and understanding difficult sentencesSkim the text and identify the difficult sentences of each paragraph. You may put your hand up if you have any questions.IV. Closing downClosing down by doing exercisesTo end the lesson you are to do the comprehending exercises 2 and 3 on pages 27.Closing down by having a discussion—How Did the Universe Begin?。

教学设计ReadingTeaching goals：Knowledge aims：1．Get students to learn the useful words and expressions in this part：astronomy，system，religion，theory，atom，billion，globe，violent，carbon，atmosphere，unlike，fundamental，harmful，acid，chain，multiply，oxygen，exist，thus，dioxide，puzzle，solar system，in time，lay eggs，give birth to，in one's turn，carbon dioxide，prevent…from 2．Let students learn about the development of the earth and life.Skill aims：1．Improve students' reading comprehension ability.2．Enable students to know about how the earth came into being and the development of life.Moral culture aims：1．Train students' interest in science and stimulate their love for astronomy.2．Have a deep understanding of the importance of protecting the environment.Teaching important and difficult points：1．Discuss the development of life.2．What will our future be like if the earth becomes too hot to live？And what can we do to prevent such serious situation from happening?Teaching methods & strategies：1．Task-based method & skimming and scanning.2．Asking-and-answering activity to check students' understanding of the text.3．Observation strategy & co-operation strategy for discussion.4．Strategies of finding information by reading.5．Individual，pair or group work to finish each task.Teaching aids：A recorder MultimediaTeaching procedures：tep 1 Lead-in（individual work）T：As we all know，the earth has been existing for billions of years.Did_human_beings_live_on_the_earth_when_the_earth_came_into_being?If not，where do human beings come from？Or who were our ancestors?S1：Monkeys!S2：Beijing Ren who lived many years ago.S3：Apes（类人猿）．S4：Gorillas（大猩猩）．S5：Chimpanzees（黑猩猩）．T：Very good.They belong to primate（灵长目动物）．Another question：Do you know what plays the most important part in our body？（Water or fat？）T：Water.Then do you know how did water come into being on the earth?Ss：No.Step 2 Fast reading（task 1）Read Paragraphs 1-3.After reading，let students watch the video of “Big Bang”，and then answer the question “How did water come into being on the earth？”（individual work）Possible answer：The explosion of the earth produced water vapour，which turned into water when the earth cooled down.Read the first three paragraphs again with the questions on the screen：1）What is the earth's atmosphere made up of?2）Why was the earth different from other planets?A．It produced a lot of heat.B．The water remained.C．Water disappeared. D．It was the oldest planet.3）Why was water very important for the beginning of life?When students meet some difficulty，the teacher can give them some hints.For example：What is the earth's atmosphere made up of?（Show students some pictures about the earth's atmosphere.）Do the exercises.（group work）Check the answers.Possible answers：1）Carbon，nitrogen，water vapour and other gases.2）B3）Water allowed the earth to dissolve harmful gases and acids into the oceans and seas.That made it possible for life to begin to develop.Step 3 Intensive reading（task 2）T：When water came into being on the earth，life began.Then do you know how the lifedeveloped?Read the whole text and finish the chart.（pair work）Development of LifeAsk two students to write their answers on the blackboard.Possible answers：1．dust2．globe3．atmosphere4．Water5．plants6．oxygen7．land8．amphibians 9．dinosaurs10．mammalsStep 4 Have a discussion（task 3）Through the writer's description，we learned the development of life.It's a long and slow process.And the earth is the best place for all the living things to live on.But human beings didn't take good care of it.Listen to the last paragraph twice with books closed.Choose the best answers.（individual work）1）What problem is caused by human beings?A．They exist everywhere on the earth.B．They cause global warming.C．They find new methods of growing crops.D．They enjoy hunting and fishing.2）From the last paragraph we can infer that the author is a little ______.A．happy B．careless C．worried D．excitedPossible answers：1）B2）CNow we learn that human beings cause global warming.That is the green house effect.If the earth may become too hot for the lives on it，what will our future be like？And what can we do to protect our earth?Please have a discussion according to the questions.（group work）Questions：1）What will our future be like if the earth becomes too hot to live?2）What can we do to protect our earth?Notes：The green house effect is the main cause of the melt of iceberg，drought，floods and insect pest.Everyone on the earth must take action to protect our earth.For example，we can plant many trees.We must do our best to stop polluting our environment.Many new laws should be passed to place strict control over industrial pollution.Educate people in fighting pollution.Ask some groups to present their opinions.Step 5 Self-assessmentWrite down your opinions according to the questions in the card.1）Can you give a brief introduction to how the universe developed，how life began on the earth and the development of life in your own words?2）What strategies of reading have you learned in the class?3）Are you active in the class?4）What problems did you have in reading?5）What help do you need from the teacher?Step 6 Homework1）Please try your best to retell the passage in your own words.2）Write a short passage according to what we have discussed.The title is “How to Protect the Earth”．About 120 words.。

人教版英语必修三Unit4（Reading）教案（反思）How Life Began on The Earth教学内容：人教版高中英语必修3第四单元阅读Ⅰ. Teaching important and difficult points:1. Enable the Ss to master the main idea of the text.2. Get the Ss to understand how to finish the exercises of the text.Ⅱ. Teaching aims:Knowledge aims:1. Let the Ss master the key words.2. Lead Ss to learn the usage of useful sentence structures.Ability aim:Develop the Ss’reading ability and let them use som e reading strategies such as skimming, scanning, and so on.Emotional aims:1. Enable the Ss to understand how life began on the earth.2. Get the Ss to be aware of the importance of protecting our earth.渗透法制教育: 在上课过程中给学生渗透与《中华人民共和国环境保护法》相关的内容。

Ⅲ. Teachin g methods:Task-based teachingDiscussionCooperative learningⅣ. Teaching procedureStep 1 LeadingUse a short film to lead the Ss to understand the origin of life on the earth.Step 2 Pre-readingAccording to the development of life, let the Ss divide thetext into several parts, then ask them to finish the following questions.1. How many parts are there in the passage?2. What dose each part mainly talk about?Step 3 While-reading1. How many steps are there before the earth formed?2. How many steps are there during the development of life?3. Read the whole text and fill the following blanks.Nobody knows how the earth , however, there are a widely accepted , the universe began with a which threw matter in all directions. At that time, the earth was still a cloud of ,after that, the earth had become with its atmosphere, which formed with dioxide, nitrogen and so on. And thenalso appeared on the earth, which was fundamental to development of life.After many millions of years, the first extremely small began to appear, later the early and all sorts of fish also appeared in the water. And then different plants and animalson land. Later the huge animals, called , appeared.Finally some clever animals with and feet appeared, they become the most important animals on the . However, they may let the earth become too to live on.4. Finish the following exercises according to the whole text.(1) why was life able to develop on the earth but not on other planet?A. The earth had a solid shapeB. The earth did not have harmful gases in its atmosphere.C. The water stayed on the earth but not on other planets.D. The earth was not too hot.(2) why was it necessary for plants to grow before animals?A. Animals needed plants to protect them from the sun.B. Plants provided oxygen for animals to breath.C. Animals could hide from hunters in the forest.D. It was easier for plants to grow.(3) what is the correct order according to the text?①The clever animals with hands and feet appeared andspread to grow.②The “Big Bang”.③Small plants began to appear on the surface of the water.④65 million years ago of the dinosaurs ended.A. 2 1 3 4B. 4 3 1 2C. 2 4 3 1D. 2 3 4 1(4)What is the main idea of the text?A. The formation of the earth.B. The humans let the earth become too hot to live on.C. The development of dinosaurs.D. The origin of life on the earth.Step 4 Post -readingRead the text and do the true-or-false questions.(1) Human beings have known the origin of the earth clearly so far. ( )(2) the appearance of water made it possible for plants and animals to live on the earth.( )(3) Plants first appeared on land and then in the water.( )(4) Dinosaurs existed on the earth for over 140 thousand years. ( )(5) It is human beings that are not looking after the earth very well and have caused global warming.( )Step 5 Summary1. How the earth formed .2. The development of life on the earth.3. The earth needs us to take care of it.Step 6 Homework1. Please retell the passage in your own words.2. Finish the exercises in your books.教学反思：本堂课总体达到了预期的教学效果，有不少亮点，但是其中也有许多的不足。

教学设计ReadingTeaching goals：Knowledge aims：1．Get students to learn the useful words and expressions in this part：astronomy，system，religion，theory，atom，billion，globe，violent，carbon，atmosphere，unlike，fundamental，harmful，acid，chain，multiply，oxygen，exist，thus，dioxide，puzzle，solar system，in time，lay eggs，give birth to，in one's turn，carbon dioxide，prevent…from2．Let students learn about the development of the earth and life.Skill aims：1．Improve students' reading comprehension ability.2．Enable students to know about how the earth came into being and the development of life.Moral culture aims：1．Train students' interest in science and stimulate their love for astronomy.2．Have a deep understanding of the importance of protecting the environment.Teaching important and difficult points：1．Discuss the development of life.2．What will our future be like if the earth becomes too hot to live？And what can we do to prevent such serious situation from happening?Teaching methods & strategies：1．Task­based method & skimming and scanning.2．Asking­and­answering activity to check students' understanding of the text.3．Observation strategy & co­operation strategy for discussion.4．Strategies of finding information by reading.5．Individual，pair or group work to finish each task.Teaching aids：A recorder MultimediaTeaching procedures：tep 1 Lead­in（individual work）T：As we all know，the earth has been existing for billions of years.Did_human_beings_live_on_the_earth_when_the_earth_came_into_being?If not，where do human beings come from？Or who were our ancestors?S1：Monkeys!S2：Beijing Ren who lived many years ago.S3：Apes（类人猿）．S4：Gorillas（大猩猩）．S5：Chimpanzees（黑猩猩）．T：Very good.They belong to primate（灵长目动物）．Another question：Do you know what plays the most important part in our body？（Water or fat？）T：Water.Then do you know how did water come into being on the earth?Ss：No.Step 2 Fast reading（task 1）Read Paragraphs 1­ 3.After reading，let students watch the video of “Big Bang”，and then answer the question “How did water come into being on the earth？”（individual work）Possible answer：The explosion of the earth produced water vapour，which turned into water when the earth cooled down.Read the first three paragraphs again with the questions on the screen：1）What is the earth's atmosphere made up of?2）Why was the earth different from other planets?A．It produced a lot of heat. B．The water remained.C．Water disappeared. D．It was the oldest planet.3）Why was water very important for the beginning of life?When students meet some difficulty，the teacher can give them some hints.For example：What is the earth's atmosphere made up of?（Show students some pictures about the earth's atmosphere.）Do the exercises.（group work）Check the answers.Possible answers：1）Carbon，nitrogen，water vapour and other gases.2）B3）Water allowed the earth to dissolve harmful gases and acids into the oceansand seas.That made it possible for life to begin to develop.Step 3 Intensive reading（task 2）T：When water came into being on the earth，life began.Then do you know how the life developed?Read the whole text and finish the chart.（pair work）Development of LifeAsk two students to write their answers on the blackboard.Possible answers：1．dust 2．globe 3．atmosphere 4．Water 5．plants 6．oxygen 7．land 8．amphibians 9．dinosaurs 10．mammalsStep 4 Have a discussion（task 3）Through the writer's description，we learned the development of life.It's a long and slow process.And the earth is the best place for all the living things to live on.But human beings didn't take good care of it.Listen to the last paragraph twice with books closed.Choose the best answers.（individual work）1）What problem is caused by human beings?A．They exist everywhere on the earth.B．They cause global warming.C．They find new methods of growing crops.D．They enjoy hunting and fishing.2）From the last paragraph we can infer that the author is a little ______.A．happy B．careless C．worried D．excitedPossible answers：1）B 2）CNow we learn that human beings cause global warming.That is the green house effect.If the earth may become too hot for the lives on it，what will our future be like？And what can we do to protect our earth?Please have a discussion according to the questions.（group work）Questions：1）What will our future be like if the earth becomes too hot to live?2）What can we do to protect our earth?Notes：The green house effect is the main cause of the melt of iceberg，drought，floods and insect pest.Everyone on the earth must take action to protect our earth.For example，we can plant many trees.We must do our best to stop polluting our environment.Many new laws should be passed to place strict control over industrial pollution.Educate people in fighting pollution.Ask some groups to present their opinions.Step 5 Self­assessmentWrite down your opinions according to the questions in the card.1）Can you give a brief introduction to how the universe developed，how life began on the earth and the development of life in your own words?2）What strategies of reading have you learned in the class?3）Are you active in the class?4）What problems did you have in reading?5）What help do you need from the teacher?Step 6 Homework1）Please try your best to retell the passage in your own words.2）Write a short passage according to what we have discussed.The title is “How to Protect the Earth”．About 120 words.。

How Life Began on The Earth教学内容：人教版高中英语必修3第四单元阅读Ⅰ. Teaching important and difficult points:1. Enable the Ss to master the main idea of the text.2. Get the Ss to understand how to finish the exercises of the text.Ⅱ. Teaching aims:Knowledge aims:1. Let the Ss master the key words.2. Lead Ss to learn the usage of useful sentence structures.Ability aim:Develop the Ss’reading ability and let them use some reading strategies such as skimming, scanning, and so on.Emotional aims:1. Enable the Ss to understand how life began on the earth.2. Get the Ss to be aware of the importance of protecting our earth.渗透法制教育: 在上课过程中给学生渗透与《中华人民共和国环境保护法》相关的内容。

Ⅲ. Teaching methods:Task-based teachingDiscussionCooperative learningⅣ. Teaching procedureStep 1 LeadingUse a short film to lead the Ss to understand the origin of life on the earth.Step 2 Pre-readingAccording to the development of life, let the Ss divide the text into several parts, then ask them to finish the following questions.1. How many parts are there in the passage?2. What dose each part mainly talk about?Step 3 While-reading1. How many steps are there before the earth formed?2. How many steps are there during the development of life?3. Read the whole text and fill the following blanks.Nobody knows how the earth , however, there are a widely accepted , the universe began with a which threw matter in all directions. At that time, the earth was still a cloud of ,after that, the earth had become with its atmosphere, which formed with dioxide, nitrogen and so on. And thenalso appeared on the earth, which was fundamental to development of life.After many millions of years, the first extremely small began to appear, later the early and all sorts of fish also appeared in the water. And then different plants and animalson land. Later the huge animals, called , appeared.Finally some clever animals with and feet appeared, they become the most important animals on the . However, they may let the earth become too to live on.4. Finish the following exercises according to the whole text.(1) why was life able to develop on the earth but not on other planet?A. The earth had a solid shapeB. The earth did not have harmful gases in its atmosphere.C. The water stayed on the earth but not on other planets.D. The earth was not too hot.(2) why was it necessary for plants to grow before animals?A. Animals needed plants to protect them from the sun.B. Plants provided oxygen for animals to breath.C. Animals could hide from hunters in the forest.D. It was easier for plants to grow.(3) what is the correct order according to the text?①The clever animals with hands and feet appeared andspread to grow.②The “Big Bang”.③Small plants began to appear on the surface of the water.④65 million years ago of the dinosaurs ended.A. 2 1 3 4B. 4 3 1 2C. 2 4 3 1D. 2 3 4 1(4)What is the main idea of the text?A. The formation of the earth.B. The humans let the earth become too hot to live on.C. The development of dinosaurs.D. The origin of life on the earth.Step 4 Post -readingRead the text and do the true-or-false questions.(1) Human beings have known the origin of the earth clearly so far. ( )(2) the appearance of water made it possible for plants and animals to live on the earth.( )(3) Plants first appeared on land and then in the water.( )(4) Dinosaurs existed on the earth for over 140 thousand years. ( )(5) It is human beings that are not looking after the earth very well and have caused global warming.( )Step 5 Summary1. How the earth formed .2. The development of life on the earth.3. The earth needs us to take care of it.Step 6 Homework1. Please retell the passage in your own words.2. Finish the exercises in your books.教学反思：本堂课总体达到了预期的教学效果，有不少亮点，但是其中也有许多的不足。