Teaching plans for Unit 13 (1-6 periods )(人教版高二英语下册教案教学设计).docx

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1、Teaching plans for Unit 13 (1-6 periods )(人教版高二英语下册教案教学设计)The water planetThe first periodI. Learning aims:1. Learn the new words and expressions2. Master some useful words and expressions to make sentences3. Know the water planet in order to protect our water propertiesII. Teaching important and di

2、fficult points;1. How to use some key words and expressions2. How to protect our planet earth111. Teaching procedures:Step 1. Greetings and lead-inStep 2 Showing the teaching aims of the unit.Talk about water and the ocean poured into the river and the sea. It is dangerous for the living things in t

3、he water.Picture 6:A: Do you know how the water is being used in Picture 6?B: Water is being used for entertainment.C: Is it a good way to use water?D: Yes, because it can help people keep fit and enjoy nature, . But if people throw rubbish into the water, it will be bad for us.Step 6 Summary and ho

4、mework1. Make a report using the useful expressions according to one of the picturesyou have discussed .2. Preview Reading.The 3rd periodI. Learning aims:1. Improve the students reading ability.2. Enable the students to realize that it is important toprotect the water on our planet.II. Teaching impo

5、rtant and difficult points:1. Master the following phrases:all the way, that is, mix with, take advantage of, manage to do2. How to make the students understand the reading passage better.III. Teaching procedures:Step 1 Greetings and lead-inA letter from “water”Dear User,Shame to you all, the Ignora

6、nt,（无知的）I am your lifeBut you seem not to value meGive me all the respectFor in me is eternal （永恒的）lifeIf you continue abusing meSurely, all forms of life will wither awayHave you ever imagined,Life without me?I tell you, it will be unbearable（不堪忍受的）Think twiceFor every drop counts.What properties o

7、r characteristics do you know about water?colorless, tasteless, odorless, feeling wet, dissolving, absorbing heat, three formsStep 2 Pre - readingQuestions related to the subjects1. What are ?2. What does look like?3. What are different parts of?4. What can be compared to?5. How do work?6. What are

8、some examples of?Step 3 While readingThe passage mainly tells us it is water that makes the ocean so important to all the living things in the world.Basic facts about life in the oceans1. Life on earth began in the oceans about three billion years ago;2. 99% of the living space on earth is in the oc

9、eans;3. There are about five million (known) species in the oceans;4. Life in the oceans ranges from tiny plankton to giant whales.Step 4 Careful reading1 .Chemical structure2H2 +02 点燃 2H20The water molecule is made up of two hydrogen atoms and one oxygen atom.They form a polar molecule , one with a

10、 slightly positive and a slightly negative.Water can break down both solids and gases.2 . SalinityWhat is salinity?Dissolved gases and solids mixed with pure water.What are different parts of salinity?Dissolved gases and solids, puree waterHow does salinity work?It affects waters weight and freezing

11、 point.What are some examples of salinity?Ocean water3 .Density1. What is density?Density is the relationship between mass and volume.2. What are different parts of density?Mass and volume3. How does density work?A less substance floats on a more dense substance.4. What are some examples of density?

12、Water(1, 000kg/m3);oil(less dense)4.Heat capacityHeat capacity:The amount of energy it takes to raise the temperature of a substance one degree centigradeDifferent parts:Energy and temperatureHow to work:A substance absorbs and releases heat. It keeps water temperature steady.Some examples:Water s h

13、eat capacity helps keep the earth s temperature steadyStep 5 Post readingAnswer the above questions1. The properties of water are chemical structure, salinity , density, heat capacity and ocean motion.2. The earth looks like an ocean planet.4. The ocean can be compared to a great place to live in.5.

14、 Maybe it means that there are some similarities between air-conditioner and the ocean. Because the ocean can keep the temperature of the earth steady. I think the ocean keeps the temperature of the earth steady by absorbing and releasing heat.6. . I think plankton, sharks and whales are examples of

15、 species in the ocean.Fill in the following table according to the reading passage:Property What is it? What is it good for?Chemical structure Every water molecule is made up of two hydrogen atoms and one oxygen atom. It is good for the living things in the ocean to absorb the nutrients easilyDensit

16、y The density of pure water is 1 000 kg/m3, meaning that one cubic meter of water weighs one thousand kilogram. It is good for marine organisms to take advantage of the density of water.Heatcapacity It is the amount of energy it takes to raise the temperature of a substance one degree centigrade. It

17、 is good for the earth to keep the temperature steady.Step 6 DiscussionWhat can we do to save and protect the water on our planet?Nothing is as precious as a drop of water. Learning about the properties of water helps us understand life on our planet. The most important thing we learn about water is

18、 that we must protect it and use it wisely. Our future depends on it.Step 7 Summary and Homework1 . Read the text carefully and find out the detailed information about water properties.2 .Think as many examples as possible to illustrate water properties.The 4th periodI. Learning aims:1. Enable the s

19、tudents to further understand the readingpassage.2. Learn the language points.II. Teaching important points:Master the language points to make sentences.III. Teaching difficult points:How to improve the students reading ability further.IV. Teaching procedures:Step 1. Greetings and revisionAsk the st

20、udents some questions according to the reading passage.Step 2 Further understand the text1 .Finding Topic Sentences# . Learning about the properties of water helps us understand life on our planet.# .The chemical structure of water makes it an excellent medium for life# . The salinity of the earths

21、oceans is about thirty-five parts per thousand, meaning that there are about thirty-five grams of dissolved solids and gases in one kilogram of water.# . The density of pure water is 1, 000 kg/m3, meaning that one cubic meter of water weighs one thousand kilograms.# . Heat capacity is the mount of e

22、nergy it takes to raise the temperature of a substance by one degree centigrade.# . Since changes in salinity and temperature affect waters density, the water in the ocean is always moving.2 . ComprehensionParagraph!. Ninety-nine percent of the living space on earth is in the oceans.Life in the ocea

23、ns ranges from the tiniest plankton all the way up to giants like sharks and whales, (paraphrase)Paragraph 2.2Hydrogen Atoms , 1Oxygen Atom, 1H20 MoleculeParagraph 3sea water (salt water)= dissolved gases +dissolved solids +pure watersalinity of sea water affects: weight+ freezing pointFactors of de

24、nsity: mass+ volumeParagraph 4Practice making suggestions and expressing opinionsReview Modal VerbsWrite an explanation paragraphStep 3. New words and expressions cube, cubic meter , square benefit, benefit from transport, import , export range, range fromto range betweenand all the way, all the tim

25、e , all the while unique, only, ordinary hydrogen atom, H oxygen atom, 0 relative, relation, relate , related, relativity solid, fluid, liquidUnit of density: kg/m3=kilograms per cubic meterDensity of pure water: 1, 000 kg/m3=one cubic meter of water weighs one thousand kilogramsParagraph 5.How does

26、 the water in the ocean move?Dense water sinks and less dense water is pushed to the surface.Paragraph 6.Main idea: significance of water to natureWater, which seems so simple and common, is what makes life possible. Of all the resources on earth - oil, gas, gold and so on - nothing is as precious a

27、s a drop of rain, (paraphrase)Step 3 Language points:1. incredibly adv. (extremely or unusually)e. g. The water is incredibly hot.2. available adj. (that can be used or obtained)e.g. Tickets are available at the box office.The book is available to all the students.3. range vi.range from A to Be.g. T

28、heir ages range from 25 to 50.His interests ranged from chess to canoeing.4. But the way the water moleculee. g. I don t like the way (in which/that) he looks at me.5. that is (to say) (which means)e. g. A week later, that is, May 1 is her birthday.He is a local government administrator , that is, h

29、e is a Civil Servant.6. take advantage of (make use of something we11/make use of somebody unfairly)e. g. They took full advantage of the hotel s facilities.She took advantage of my generosity.7. be sensitive to something (affected easily by something) e. g. She is very sensitive to other, s words.S

30、tep4 Exercise:Fill in the blanks with the proper words. The first letter has been given.1 The water molecule is made up of two atoms and one atom.2 Water is a liquid at room temperature, but it turns into when the temperature drops below 0 and into a gas when heated above 100.3 The soil can water, s

31、o it helps to keep waterfrom flowing away.4 Marine scientists study the between livingcreatures and their habitat in the ocean.5 Life in the oceans appears in different sizes, from the tiniest fish all the way up to the biggest blue whales.6 Oil has a density lower than 1, 000 kg/m3, so it will on w

32、ater.Step 5 Summary and homework1 .Furhter understand the text.2 . Write an article about how to save and protect water.The 5th periodI .Learning aims:1. Review Modal Verbs2. Do some exercises to review the language study in the last period.II . Teaching important points:Review Modal VerbsIII . Teac

33、hing difficult points:How to help the students correctly use the Modal VerbsIV . Teaching procedures:Step 1 GreetingsStep 2 RevisionStep 3 Grammar情态动词表猜想(Model Verbs)一 . 确定句： must , may , might对现在事实的猜想:must / may / might +be （状态）,must / may / might +be doing （行为）He must be in his office for he calle

34、d me there five minutes ago.（现在状态）A woman is coming to us. She may / might be our new teacher.（现在状态）Put on more clothes. You must be feeling cold with only a shirt on.（现在行为）He may/might be having breakfast.（现在一彳亍为）对过去事实的猜想：must / may / might +have been （状态）must / may / might +have done （行为）Oh, the m

35、an you met must have been my brother, Peter.（过 去一-状态）He might/may have been there before.（过去一状态）The ground is wet. It must have rained last night.（过去 -行为）He might have watched TV or have gone over his lesson.（过去一行为）二 .否定句： can , could对现在事实的猜想：can / could + not be （状态）can / could + not be doing （行为）T

36、he young girl can t /couldn t be our new chairman. （现在状态）He can t be at home, for the light in the room isn t on.（现在状态）They can t be reading in the library.（现在 彳亍为）The boys can t be doing their homework in the classroom.I saw them playing football 5 minutes ago. （现在彳亍为）对过去事实的猜想:can / could + not hav

37、e been （状态）can / could + not have done （行为）The road is dry, it couldn t have rained last night.（过去-行为）Tom can t have been at home last night. He has gone to Japan last week. （过去状态）疑问句 can, could对现在事实的猜想：can / could + 主语 + be （状态）can / could + 主语 + be doing （行为）Who s that? Can it be our headmaster?（现

38、在一状态）Could the students be cleaning the street ? （现在一行为）No, they can t be doing that.对过去事实的猜想：can / could + 主语 + have beencan / could + 主语 + have doneCould they have been in Xinjiang last month?（过去状态）Could they have finished their homework?They had been working all the afternoon. （过去彳亍为）Step 4 Exerc

39、ises1 .Choose the best answers2 .Fill in the blanksStep 4 Summary and Workbook (Omitted)Step 5 The design of the writing on the blackboardThe 6th periodI. Learning aims:1. Improve the students reading ability by reading the material.2. Improve the students writing ability.3. Enable the students to r

40、ealize that it is important to protect the estuaryII. Teaching important and difficult points:How to improve the students? integrating skillsreadingand writing.III. Teaching procedures:Step 1 Greetings and revisionStep 2 Lead-inStep 3 ListeningStep 4. Finding Topic SentencesAs the oceansare the sour

41、ce of life on earth,the estuariesare our planets nurseries.Estuaries aregreat places for natures young ones.Estuaries arealso important because they absorbnutrients andpollutants from water coming frominland sources, thus cleaning our waterEstuaries provide both recreation and educationfor human bei

42、ngs.Step 5 Structure of the passageStep 6 Answering the questions1.Why are estuaries such good places for natures young ones?2 What does density mean in this passage?3 How do estuaries affect the water that passes through them?4. Why are estuaries more sensitive to pollution than otherareas?5. Why a

43、re estuaries important to human beings?Step 7Word Study1. Pollutant 2. estuary 3. recreation 4. mammal, 5. reproduce 6. erosiona. the body of water where a river meets the oceanb. warm-blooded vertebrate animals to generate (offspring) by sexual or asexual means.c. something that pollutes, especiall

44、y a waste materiald. the process of eroding or the condition of being erodede. refreshment of ones mind or body after work through activity that amuses or stimulatesStep 8 Writing1. Why does an ice cube float?2. What will happen to a piece of metal if you put it in water?3. Why do so many species li

45、ve in estuaries?4. Why have so many cities been built by estuaries?pure, impure, purely gramme, gram , g mass, masses, a mass of , masses of , mass-produce kilogram, kg float, on water, sink take advantage of make use of absorb, take in , give off give off, give out , give in ,give up stable, stabil

46、ity .stabilize sensitive, sense, sensible , be sensitive about/to steady, steadily, trust, doubt, believe in call in, call at ,call up, call on , call forStep 9 Summary and homework(omitted)文档内容到此结束，欢迎大家下载、修改、丰富并分享给更多有 需要的人。a variety of, varieties ofStep 4 Practice价格自50元到100元不等.在回家的路上，同学们始终谈论科幻小说这位老

47、师在课堂上充分利用了多媒体那个女皇对温度很敏感.他虽有阅历但无进步.这些首饰是她的私人财产.水不够深,船不能浮起来.这个病人状况稳定.他对自己的个子小神经过敏.有很多句式供你选择.Suggested answers：Prices range from 50 to 100 yuan.This teacher took advantage of multimedia in the class.The queen is very sensitive to temperature.He hasn t benefited from the experience.The jewels were her personal property.He is very sensitive about being small.There wasn t enough water to float the ship.The patient s condition is stable.All the way home ,they talked about science fiction.