人教版高二下学期Unit 13 The water planet教学设计.doc

Unit 13 The water planetPeriod 1 Warming up, listening and speakingGoalsl Talk about water and ocean.l Practise communicative skills.l Improve students abilities of listening and speaking.l Review Modal Verbs.l Write an explanation paragraph.Procedures Leading in (1): by discussion. ( pair work, approx. 5 mins.) Hi, everyone. Today we are going to learn about water and ocean. Do you know any of the four oceans in the world? Chen Y un, can you name the four oceans? Chen Yum Yes. They are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and.Sorry, I dont know the last one. T: Very good. Zhou Jie, do you know tile English name of it? Zhou Jie: Maybe it is the Arctic Ocean. T: Youre right. Now to learn more about oceans, please find out more with your partners about the four oceans.Water Survey:The worlds biggest water problem in the futureWhat do you think the headlines about water will be in the future?Water rationing? Can I take a bath?The lake is polluted? We cant go swimming?Dad - why does our water taste like gasoline?Our faucet is dry again? Another broken water pipe!Plenty of clean water for everyone!Leading in (2): by a game. ( individual work, approx. 5 mins.) (The teacher puts up a world map on the blackboard.) Hi, everyone. Today we are going to learn about water and oceans. Can you find the four oceans of the world on the map? Would you please have a try? Where is the Pacific Ocean? Lu Ping: OK. The Pacific Ocean lies between Asia and America. T: Zhang Ming, do you know where the Atlantic Ocean is? Zhang Ming: Its among Asia, Africa, Oceania and Antarctic. Its the longest ocean of the four. Oceans and Continents the Pacific Ocean, the Atlantic Ocean, the India Ocean, the Arctic Ocean; Asia,:Africa, Europe, the North America, the South America, Antarctica, OceaniaTask 1: Looking and reading. ( individual work, approx. 10 mills.)1. Look at tile experiments on page 17 anti explain what happens and why.2. Ask the students the following questions: How much do you know about water? Why is water important to us? Why is water important to animals and plants? What can we do to protect the water on our planet?Task 2: Listening, filling and speaking. ( class work, approx. 15 mins.)1. Now we shall have a listening practice. Before we listen to a tape, please go through the exercises first and try to get some information about the passage we are going to listen to.2. Listen to the first part and answer the following questions: Who is telling the story in the poem? What does one of the sailors do? What do you think will happen next? Why are the other sailors frightened?3. Listen to the second part and answer the following questions: What happened to the sailors? What happened to the mariner? Why? Why is the person telling the story?4. Work with your partner and see if you can come up with a good, scary story like the one about the mariner. Tell your story to your classmates.5. Play the tape again and ask the students to write down the key points of the story and then let some of the students retell the story.6. To make the students understand the passage better, let them listen to the tape once again.Task 3: Speaking up. ( group work, approx. 10 rains.)1. Divide the students into groups and let each group choose one of the pictures and discuss the importance of using and protecting our water. Ask them to make notes of their discussion and use the notes to report to the class.2. Let the students make a report in groups and practise it in class.Useful expressionsThe water is being used to / for.We should / could.What will we do if.?If we., we can.It would be better to.Can you think of a better way.?Closing up by dictation. ( group work, approx. 5 mins.)To end up, well do a dictation. Ill read aloud the following poem twice. The first time you just listen tor the general meaning; the second time you take some notes. Then you will be given time to write down the poem out of memory and with the help of your notes. Have you finished?Now exchange your work with your partners for correction and improvement.The OceanThe Ocean A magical place indeed. The suns so bright. The birds at play. The soil scent of salt misting through the air. From the big powerful thunderous waves. I love to lie on the white sands of bliss. This place was blessed with a kiss from the heavens above. Itll put your mind at ease. So help keep the beaches clean. Mother nature is tough. Bul. this just isnt enough. Help do your part and keep our beaches clean. As during the summer this can be seen. Homework Ask the students to learn more about water and oceans by looking up the materials on the Internet.Period 2 Reading(FHE PROPERTIES OF WATER )Goals Provide students with opportunities to know about water and oceans. Improve students abilities of reading comprehension .ProceduresLeading in (1): by discussion. ( class work, approx. 5 mins.) (Free talk about water and oceans) Ask the students to name some oc, eans. If possible, ask some students to tell the class something about one of the oceans. Do you want to know something more about water and oceans? Now lets learn the text THE PROPERTIES OF WATER.Leading in (2): by studying maps. ( individual work, approx. 5 rains.) Good morning, everyone! Do you know something about water and oceans? Please find the four oceans on the map. Who likes to have a try? Do you want to know something more about water and oceans? Now lets learn the text THE PROPERTIES OF WATER.Task 1: Reading for general ideas. ( individual work, approx. 10 mins.)1. Read the text quickly and complete the following tasks.Look at the titles in the text below. Do not read the whole text. Pick out the subject of each paragraph and use the structures below to make six questions (page 19). Work in pairs or groups and try to answer the questions. Write down your answers and anything else you know about the topic. What is/are _? What does _ look like? What are different parts of _ ? What can _ be compared to? How does _ work? What are some examples of _ ?2. Read the text carefully and then complete the chart on page 21.Task 2: Reading and copying. ( individual or pair work, approx. 15 mins.) Now its time to read the text again, copy down all the useful expressions and make a sentence with each expression.Useful expressions from THE PROPERTIES OF WATER range from.to . be made up of, break down, even though, he measured iii, take advantage ok become available to . mix with . have a lower freezing point, have a higher density, float on water, take advantage of . freeze.solid, raise the temperature, absorb and release heat:, push.to tile surface.Task 3: Discussing and finishing. ( group work, approx. 10 rains.) Use what you have learnt from the text to answer the questions you wrote in the Pre-reading activity. Are there any questions that the text did not answer? If so, why do you think the text did not answer these questions? Are there any questions you would need to add to cover all the information in the text? Earth: The Water Planet Seventy percent of the Earths surface is covered by water. The remaining 30 percent is covered by mountains, volcanoes, deserts, plains, and valleys. Earth is the third closest planet to the Sun. It has an atmosphere made up of many different gases, but mainly it is nitrogen and oxygen. The atmosphere gives us air to breathe. We live on the planet Earth. The Earth orbits around the Sun. It takes one year to go around the Sun one complete time. The Earth also rotates, or spins, on its axis. It takes one day to spin around one complete time. The Earths axis is not straight up and down, but filled a little bit. This tilt is responsible for us having seasons. Otherwise. the temperature would be pretty much the same all year long.Closing up by listening. ( approx. 5 mins.) Play the tape of the text tor the students to listen to and read aloud. Homework Ask the students to read the text again and again and learn the new words and language points by heart. Period 3 Language study(Review Modal Verbs)GoalsHelp the students to grasp some new words and improve the ability of defining words in English. Help the students to sunnnarize the features of Modal Verbs and master their uses.Procedures Leading in (1): by translation. ( class work, approx. 5 mins.) Hello, everyone! We learned THE PROPERTIES OF WATER yesterday. Now Ill ask you to translate some sentences into English according to the text. 物价随季节而变动。 现在的食品物价在5美元至50美元之间。 社会是由能力迥异的人组成的。 她的身体三年前垮了。 即使我必须工作很长时间，我也决不放弃。 他们充分利用学校的没施。Key: Prices vary with the reasons. Food prices today range between $5 and $50. Society is made up of people of widely differing abilities. Her health broke down three years ago. Even though / if I have to work a long time, I wont give up. They took full advantage of the schools facilities.Leading in (2): by presentation. ( class work, approx. 5 mins.)Good morning, class. Yesterday we learned the text THE PROPERTIES OF WATER. I want one of you to retell the text in your own words.Task 1: Word study. ( individual work, approx. 10 mins.)1. Turn to page 21 and ask the students to put the letters in the correct order.2. Ask the students to fill in the blanks with the proper words according to the letters given.Task 2: Reviewing the Modal Verbs. ( individual and class work, approx. 30 mins.)1. Now its time for us to review the Modal Verbs. Please think over the use of each Modal Verb.2. Help the students to understand the meanings of the Modal Verbs.3. Ask the students to complete each sentence by using the Modal Verbs on page 21.4. Ask the students to finish the exercise 2 on page 22.5. Ask the students to give the best answers according to the letters.6. Ask the students to choose the best answers. You _ use my bike on condition that you give it back to me before I leave hem.A. should B. must C. ought to D. shall I lived with my sister this summer and didnt have to pay rent. So I _ savemost of my salary.A. could B. would C. was able to D. should Look, Johns fallen asleep. - Oh, he _ too late last night.A. might sit up B. should have sat upC. could sit up D. must have sat up I told Sally to fix him up with this job, but perhaps I _ for her.A. must have written it out B. should have written it outC. ought to write it out D. had to write it out -I posted the letter a week ago. - Then they _ the letter by now. It usually takes four days.A. can have received B. must receiveC. should receive D. ought to have received He used to teach in that university and I _ ride past it on my way to work.A. would B. could C. should D. might So you have to leave now.- Yes, I _- How nice it would be if you could stay a bit longer!A. have to B. ought to C. do D. have He _ Shanghai, for I saw him talking with the headmaster a moment ago.A. must have gone to B. cant have gone toC. mustnt have been to D. cant have been to Many people in England love to give advice on weather reporting. - Yes, but I think the weather offices computers be more accurate.A. can B. must C. ought to D. might _ you make so much noise, Jimmy? _ you remember you are in class now? - Sorry, sir. Ill try not to.A. Cant; Dont B. May; Do C. Must; Dont 1). Wont; DontKey: 1-5. DCDBD 6-10. AABCCHomeworkAsk the students to learn more abort the Modal Verbs after class.Period 4 Integrating skills(NATURES NURSERY: ESTUARIES)Goals Provide the students with opportunities to develop their extensive reading skills anti learn about some scientists. Give the students practice in writing an explanation paragraph.ProceduresLeading in (1): by free talk. ( individual work, approx. 5 milts.)Hello, everyone. We have learned a lot of things about THE PROPERTIES OF WATER.Today lets learn another passage about water NATURES NURSERY: ESTUARIES.Leading in (2): by listening. ( individual work, approx. 5 mins.)Good morning, class. We have learned a lot of things about THE PROPERTIES OF WATER.Today lets learn more about THE PROPERTIES OF WATER. Now please turn to page 22 and read the text NATURES NURSERY: ESTUARIES. WHAT ARE ESTUARIES? Estuaries are places where freshwater rivers and streams flow into the ocean, mixing with the seawater. A wide variety of birds, fish, and other wildlife make estuaries their home. People also live, fish, swim, and enjoy nature in estuaries and tile lands surrounding them.Task 1: Reading for general ideas. ( individual work, approx. 10 mins.)1. Ask the students to read the text quickly and try to get the general idea.2. Ask the students to decide whether the following sentences are true or false according to the text NATURES NURSERY: ESTUARIES. An estuary is the land place where a river meets the ocean. ( ) Estuaries are the homes to thousands of animals and plants. ( ) Nutrients arrive in estuaries only from the land. ( ) Estuaries are also important because they absorb nutrients and pollutants from water coming from inland sources, thus cleaning our water. ( ) Estuaries also contribute to the economy through tourism and transportation. ( )(Key: 1. x 2. /3. x 4. X/5. x )EstuaryWhere River Meets the SeaBrown and green are the colors of the estuary. It is here that the river meets the sea in shallow, protected bays. The estuary serves a banquet of decaying plants, tiny floating plants and animals called plankton, and little fishes. Millions of sea animals get their start in life feeding in the quiet waters of the estuary. They can find shelter in salt marshes, beds of slender eelgrass, or wide mudflats. An estuary has very little wave action, so it provides a calm refuge from the open sea. Some of the animals, such as flounder, eels,