高二上冊(cè)英語教案：Unit13教案1

1、課題課時(shí)7教學(xué)目標(biāo)教學(xué)重難點(diǎn)教學(xué)用具sefcb2unit13the water planet授課日期2020.3.8 - 2020. 3. 16talk about water and the oceanpractice making suggestions and expressing opinionsreview modal verbswrite an explanation paragraphsome important words and expressionslearn to make suggestions and express opinionsgrammar modal ver

2、bs1. a recorder2. a blackboard3. the multimedia4. something special for the experiments (eg. oil, water, glass, ice cube)背景知識(shí)：water pollutionwhat is necessary to life on earth. all organisms contain it; some live in it; some drink it. plantsand animals require water that is moderately pure, and they

3、 cannot survive if their water is loaded with toxic chemicals or harmful microorganisms. if severe, water pollution can kill large numbers of fish, birds, and other animals, in some cases killing all members of a species in an affected area. pollution makes streams, lakes, and coastal waters unpleas

4、ant to look at, to smell, and to swim in. fish and shellfish harvested from polluted waters may be unsafe to eat. people who ingest polluted water can become ill, and, with prolonged exposure, may develop cancers or bear children with birth defects. the major water pollutants are chemical, biologica

5、l, or physicalmaterials that degrade water quality. pollutants can be classed into eight categories pet products; pesticides and herbicides; heavy metals; hazardous wastes; excess organic matter;sediment; infectious organisms and thermal pollution - each of which presents its own set of hazards.unit

6、13the water planetthe first period warming -up, listening and speaking teaching aims:learn and master the new words and the useful expressions of this part words: cube, sailor, disadvantages, entertainment phrases: come up with, happen touseful expressions: the water is being used to / forwe should

7、/ couldif we we canit would be betterlearn something about water by doing experiment.do some listeningimprove the students speaking ability by talkingteaching important points:make the students be free to talk about water.improve the students listening ability by practice.teaching difficult points:h

8、ow to finish the task of speaking.how to improve the students listening ability.teaching methods:listening-and-answering activity to help the students go through with the listening material.individual, pair or group work to make every student work in class.teaching aids:the multimediathe blackboarda

9、n empty glass, a bottle of water and a bottle of vegetable oilteaching procedures:greetings and lead -in1. i have a riddle. please guess it.it s very important to all the animals and plants.it s also important to human beings.it s liquid at room temperature.every day you keep in touch with it.you ca

10、n t live without it.(a thing)it s water. today we will talk about water.2. what you know about water?maybe you can learn more about water from the following experiments.listeningyou can listen to the famous poems about life on the ocean.before you listen, letphrases first.happen toeg. what happened

11、to you last week?if anything happens to the machine, please tell e up witheg. i hope you can come up with a better plan than this. s learn twoplay the tape for the first time to get the general meaning and write down some key words.play it for the second time, pause for students to write down

12、the information.check the answersspeakingin our daily life, water can be used in different ways. now we lltalk about the ways in which water can be used. look at the pictures on page 18. you can choose one of the six pictures to discuss the importance of using and protecting our water. when you disc

13、uss, you may use the questions to help you.how is the water being used?is this a good way to use water?why do we use water in this way?who benefits from using water in this way?what are some disadvantages of using water in this way?summarytoday, we remainlylearnedsomething aboutwater by doing experi

14、ments, speaking andlistening. besides, we ve learnt some new words and phrases. after class, try to remember themand preview the next part- reading part.homework必做作業(yè)語音知識(shí)1. countera. shoulderb. doublec. fountaind. obviously2. feathera. theoryb. thirstyc. gatherd. birth3. comba. burstb. debtc. bucketd

15、. board4. ashameda. discussedb. agreedc. expectedd. needed5. uselessa. oppositeb. desertc. scoldd. reuse補(bǔ)全對(duì)話(bruce and zhou lan are talking on the telephone about stamps.)b: hello. can i speak to zhou lan, please?z: this is zhou lan speaking.b: hello, zhou lan. this is bruce. excuse me for ringing y

16、ou so late in the evening, but ihome.z: _1_.b: i would like to ask you about some stamps. _2_ you had it when i last saw you.z: i m afraid i don t have it. i sold it last week.b: _3_.z: i m sorry. i didn t know you wanted it. what a shame!b: it doesn t matter. i only decided to buy it today. it s a

17、pity i didn t think of it earlier.z: _4_.b: yes, please. that would be so kind of you. i ve been working so hard recently that i havent hadany time for collecting new stamps.z: _5_.b: thanks very much! bye!z: good-bye!ok. i ll ring you if i have any new. do you still have the cock year stamp? can i

18、take a message for you?oh! what a pity!can i help you?do you want me to find one for you?that s ok.ebdfa選作作業(yè)：倍速the second periodpre-reading, reading and post -readingteaching aims:learn and master the following words and phrases:words: cube, property, range, medium, relatively, dissolve, pure, relat

19、ionship, mass, float, absorb, bottomphrases: all the way, that is, add to, mix with, take advantage of, manage to doimprove the students reading ability.enable the students to realize that it is important to protect the water on our planet.teaching important points:improve the students reading abili

20、ty.master the following phrases:all the way, that is, mix with, take advantage of, manage to doteaching difficult points:how to make the students understand the reading passage better.teaching methods:discussion before reading to make the students interested in what they will learn.fast reading to g

21、et a general idea of the text.discussion after reading to make students understand what they ve learned better.careful reading to get the detailed information in the text.teaching aids:the multimediathe blackboardteaching procedures:greetings and lead -inas we all know, we can t live without water.

22、but do you know what makes water so important to all the living things?maybe we can get the answer to the question after reading the article for today. before you read,first let s learn the new words and phrases in the passage.pre-readingnow please look at the titles in the text below. do not read t

23、he whole text. pick out the topic of each paragraph and use the structures below to make six questions.what is / are the properties of water?what does the earth look like?what are different parts of the ocean?what can the ocean be compared to?how does the special air -conditioner - the ocean work?wh

24、at are some examples of species in the ocean?2. the general idea of the text:the passage mainly tells us it is water that makes the ocean so important to all the living things in the world.reading1. fast readingscan the passage to get some information about water. while you are reading, try to finis

25、h the chart in post -reading on page 21.propertywhat is it?what is it good for?chemicalevery water molecule is made up of twostructurehydrogen atoms and one oxygen atom.densitythe density of pure water is 1000 / ,meaning that one cubic meter of waterweighs one thousand kilogram.heatheat capacity is

26、the amount of energyitcapacitytakes to raise the temperatureofasubstance one degree centigrade.it is good for the living things in the ocean to absorb the nutrients easily.it is good or marine organisms to take advantage of the density of water.it is good for earth to keep the temperature steady.2.

27、carefully readingread the passage carefully and find out the answers to the questions we wrote in the pre-reading activity.the properties of water are chemical structure, salinity density, heat capacity and ocean motion.the earth looks like an ocean planet.there is not any information about the diff

28、erent parts of the ocean.the ocean can be compared to a great place to live in.because the ocean can keep the temperature of the earth steady, some students compare the ocean to a special air -conditioning. i think the ocean keeps the temperature of the earth steady by absorbing and releasing heat.p

29、lankton, sharks and whales are examples of species in the ocean.listening and reading aloudthe teacher plays the tape for the students to listen. after listening, the teacher goes among the students and corrects any mistake the students make in pronunciation, stress and intonation. summarytoday, we

30、have read a passage about water. as we know, it is very important to all the living things. so we should do all we can to protect water from being polluted. in addition, try your best to retell the passage in your own words.homework必做作業(yè)：佳句摘抄：（根據(jù)下列句子的漢語意思，寫出對(duì)應(yīng)的英語，與原文一致）選做作業(yè)：倍速the third periodlanguage

31、 pointsteaching aims:review the important usages of some wordsexplain the usage of new words mentioned in last classteaching important points:make students understand the meaning and usage of some important words and phrases.master the correct sentence patternsteaching difficult points:how to make t

32、he students use the words and phrases correctly in certain situations.teaching methods:teacher s explanationpair or group work to practice the usageteaching aids:the multimediathe blackboardteaching procedures:i. greetings and lead -in ii. language points part 1. warming -up1. cover a glass of water

33、 with a piece of thick paper. 用一 厚 蓋在一杯水上。（1） cover 用作可數(shù)名 ，意 封面 或 蓋子 。the book needs a new cover. 本 需要裝個(gè)新封面。whats on the front cover?封面上有什么內(nèi)容？（2）cover 用作及物 ， 后跟名 或代 作 ，其 去分 常用作表 ，用于 be coveredwith/by 構(gòu)，表示 被覆蓋 。（用 西）覆蓋she covered the table with a cloth.占（多大面 ）the school covers 2,000 mu.涉及，包含the book

34、covers a wide field.采 ， 道i m covering the election campaign. 付（ 用）two hundred dollars can cover her need every month.2. put one hand on the paper and turn the glass upside down.把一只手放在 上，然后把玻璃杯翻 。句中 upside down 是固定短 ，常與 turn 構(gòu)成 短 。表示 倒 、 倒置 或 倒 。be careful not to turn the table upside down.當(dāng)心 把桌子弄翻了。

35、表示 混亂 或 亂七八糟 。they turned everything in the room upside down and ran away.他 把室內(nèi)的一切弄得亂七八糟然后一跑了之。 ： turn against背叛he turned against his country.turn to向求助i turned to him for advice.turn up出 ；到； 高h(yuǎn)e turns up late for everything.turn out 果是everything turned out well.3. pour water and vegetable oil into

36、a glass.（ 1）流blood poured from the wound.（ 2）（人）蜂 workers poured out of the factories.（ 3）（雨） 盆而下the rain is really pouring down.（ 4） 注he has been pouring money into the film for years but it4. put an ice cube in each glass. i gave the boy a sugar cube. 塊s still in trouble.the cube of 3 is 27. （ 3 c

37、ubed is 27.）立方part 2.listening5. work with a partner and see if you can come up with a good, scary story like the one about the mariner. 你與搭檔一起看是否能找到像關(guān)于 個(gè)水手那 的好的恐怖故事。come up with 屬于 動(dòng)詞 +副 +介 構(gòu)，主要有兩個(gè)用法：表示 追及 或 趕上 ，相當(dāng)于catch up with 。he has made up his mind to come up with his classmates. 他已下定決心，要趕上他的同

38、學(xué)。表示 提出 、 提供 、 生 或 （解決 法、答案等），等于 produce 。the airline has come up with a solution to the problem.航空公司想出 法來解決 個(gè) 。 ：come up to 來到跟前；往上達(dá)到高度soon the waiter came up to him and asked, can i help you, sir?the water came up to my e about 生tell me how the accident came about?come across偶然遇到i came ac

39、ross his name on the e down（物價(jià)）跌落； （ 俗， ） 下來price didn t come e on 展how are you coming on with your english?come out出版； 果是the book came out last year.how come ? 何會(huì) ?how come she hates birds?part 3. speaking6. why do we use water in this way? ：give way to屈從， 步the company gave way to t

40、he worker s demand.in no way 不the two incidents are in no way connected.make one s way前 ，行走they made their way across the river.on one s way在途中； 于he is on the way to recovery.in a way在某種程度上you are correct in a way.7. who benefits from using water in this way? vt. 益， 有利vi. 益；得益于 接介 from/byi benefited

41、 enormously from my fathern. 利益；益 be of benefit to 有裨益eg. your advice was of great benefit to me.for the benefit of 了的利益 s advice.eg. i get a lot of benefit from learning a foreign language.that experience was of great benefit to me.eg. we must make efforts to take exercise for the benefit of our he

42、alth.part 4reading8. the properties of water（1） c 特性，性 many plants have medicinal properties.（2） u 財(cái)產(chǎn)the jewels were her personal property. that car is my property; you can （3） u 房地 ，不 t use it without my permission.tianjin is developing and property in the center is becoming more valuable.（4） c （一

43、）房地 he has a property in the west.9. marine life is incredibly rich and varied.海洋中的生物極其豐富多彩。varied 是形容 ，意 各種各 的 、 多 化的 、 不相同的 、 改 了的 、 色的 或 斑 的 。almost no one knows his varied life.幾乎沒有人知道他多 的 。varied opinions made him hard to make a decision.各種不同的意 使得他 于做出決定。 vary v.改 ； 化opinions varies on that poi

44、nt.在那一點(diǎn)上意 各不相同。variety n. 化性；多 ； 種； 形；若干不同的事物life is full of variety.生活充 了 化。last week we went to a variety show.上星期我 去看了 耍演出。 ：a variety of種種we have a variety of colours and patterns to choose from.我 有 多 色和 案可供 。he failed in the experiment for a variety of reasons.因 各種原因，他 失 了。10. life in the ocean

45、s ranges from the tiniest plankton all the way up to giants like sharks and whales.rangevt.排列； ；常與on, in, along 等介 用，表示方向或 。eg. i ranged the books on the shelf according to size. 我把 依大小 序排在 架上。vi.在范 內(nèi) ；eg. the road ranges westward from the road. 條湖由湖 向西延伸。n.范 （ 知、知 、 或能力方面）不可數(shù)名 ：be out of one s rang

46、e某人所不能及的 化（范 ）eg. what is the range of this telescope? 架望 的有效距離是多大？have rages of山脈；延展的一 或一系列eg. the library has ranges of books in perfect order. 個(gè) 的 一排一排放得井井有條。range from（1）從分布到there are two hundred boys ranging from seven to fourteen in age.（2）在某一特定的范 內(nèi) 化the plant ranges from canada to mexico.the

47、temperature ranges from ten to thirty degrees.all the way （自始至 ）一直，一路上，從 道而來the target is getting all the way up.it s kind of you to come all the way to see me.up to （ 1） be up to sth: occupied or busy with sth.what is he up to now?what have you been up to lately?（2） be up to sb. 由某人 it s up to you

48、to choose where we should go.（3） be up to + n. 任；適于he is not up to his work.the product is up to standard.忙于11. the chemical structure of water makes it an excellent medium for life.水的化學(xué) 構(gòu)使它成 生命的最佳媒介。(1)句中 it 是人稱代 ，指代water ，而不是代指the chemical structure of water 。(2)medium 的用法 medium 是可數(shù)名 ，復(fù)數(shù)形式 medium

49、s 或 media，意 媒體 或 媒介 。newspapers and magazines are important media for advertising. 和 志 廣告的重要媒體。medium 也可以用作形容 ，意 中 的 或 中等的 。the boy is of medium height for his age. 男孩的身高在他 個(gè)年 中算中等。12.because water is polar, it can break down, or dissolve, both solids and gases.破壞the police broke the door down.制服the

50、 police tried to break down the prisoners opposition.機(jī)器 壞 the car broke down.（身體） 了his health broke down because he had been working too hard. 崩 ，瓦解；破裂talks between the two sides have broken down.she broke down when she heard her husband had been shot. 起化學(xué) 化chemicals in the body break down our food into useful substances. ： break up 一般指物理 化the ice of the river begins to break up at the beginning of march. 分解a bicycle can be broken do