必修3Unit4教案高一英語

1、Unit4 Astronomy: the science of the starsI單元教學(xué)目標(biāo)技能目標(biāo)GoalsTalk about the science of the stars, the development of life and space travel and gravity Practise giving instructionsPractise talking abut problems in study or lifeLearn to use Noun Clauses as the subjectLearn to write an essay to show your p

2、roblems and the way to overcome them.II. 目標(biāo)語言功能句式Talk about the science of the stars, the development of life and space travel and gravity Where do we come from?How did the universe begin?Why is the universe the way it was?How will it end?How much do you know about universe?Do you want to have a spa

3、ce travel?Do you know something about gravity?Do you know something about black holes?Practise giving instructionsPlease look at/ listen toPlease check thatYou needPlease pay attention toDont forget toYoud betterMake sure youWatch out forYou mustntPractice talking about problems in study or lifeMy p

4、roblem isThe difficulty isMy trouble isThe question isMy advice isWhat I think about it isThe fact isMy suggestion is詞匯1 四會(huì)詞匯astronomy, atmosphere, system, violent, solid, explode, carbon, dioxide, oxygen, surface, planet, harmful, development, spread, method, depend, exist, presence, telescope, dis

5、appoint, disappointed, publish, publishing, gravity, force, gradually, cheer, float, mass2認(rèn)讀詞匯astronomer, biochemistry, geophysics, solar, Big Bang, vapour, nitrogen, dissolve, amphibian, reptile, generally, mammal, global, comet, Issac Newton, Albert Einstein, Stephen Hawking, lessen, weightlessly,

6、 cabin, exhaust, exclaim3 詞組solar system, in time, preventfrom, depend on, cheer up, now that, get the hang of, break out語法Noun Clauses as the subjectNoun Clauses as the subject is also called the Subject Clause. That means a Noun Clause serves as Subject in the sentence. The words which are used in

7、 this Noun Clause are: that, whether, who, what, which, when, where, how, why, etc.Example1.What it was to become was a mystery.2.It was not clear whether the solid shape was to last or not.重點(diǎn)句子1.What it was to become was a mystery until the dust began to slowly combine into a ball moving around the

8、 sun. P252.Its exploded loudly with fire and rock, which were in time to produce the water vapour, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earths atmosphere. P253.It allowed the earth to dissolve harmful gases, which had become part of the earths atmosphere, into the

9、 oceans and seas. P254.Whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved. P265.When we get closer to the moon, we shall feel its gravity pulling us but it will not be as strong a pull as the earths. P306.Walking does need a bit of

10、 practice now that gravity has changed. P317.We watched, amazed as fire broke out on the outside of the spaceship the earths gravity increased. P318.Seen from space, the earth appears to be a water ball.9.But the answers have always seemed well beyond our reach, until now.10.Huge questions remain to

11、 be answered, before we can hope to have a complete picture of the universe we live in. III.教材分析和教材重組：1.教材分析：本單元以astronomy: the science of the stars, the development of life, space travel and gravity為話題，通過本單元的幾篇閱讀材料使學(xué)生對(duì)以上問題有所了解，并通過文章中的一些探討性的問題，比如，The earth may become too hot for the lives on it. The

12、n what will our future be? 使學(xué)生更好地了解我們的地球和我們的生活環(huán)境，并引發(fā)對(duì)“地球的將來如何”的熱烈討論，通過這些討論會(huì)激發(fā)學(xué)生對(duì)天文學(xué)了解和探究的強(qiáng)烈興趣。通過討論登月球需要的物品和可能遇到的困難學(xué)會(huì)提出問題和解決問題的表達(dá)方法，并能就此寫出一篇表達(dá)合理清晰的短文。1.1 WARMING UP以討論的形式通過三組問題引導(dǎo)學(xué)生討論邊緣科學(xué)，討論科學(xué)研究的方法以及要成為真正的科學(xué)家所必須掌握的技能。1.2 PRE-READING 主要讓學(xué)生弄清楚什么是科學(xué)思想，什么是宗教信仰或文化傳統(tǒng)。在探討生命的起源的科學(xué)道理之前，讓學(xué)生以聽故事或講故事的方式，交流一下有關(guān)宇宙的

13、起源的種種傳說，既有趣味性，又能調(diào)動(dòng)學(xué)生的相關(guān)知識(shí)，激活學(xué)生的思維。1.3 READING 講述了地球上生命的起源。水的形成使得地球有別于其他星球，它使得地球上生命的誕生成為可能。科學(xué)家認(rèn)為，地球上的生命首先誕生于水中，上百萬年后，陸地上才長(zhǎng)出綠色植物，隨后出現(xiàn)了陸棲動(dòng)物和水陸兩棲動(dòng)物。最初的動(dòng)物靠孵化繁衍后代，后來出現(xiàn)了哺乳動(dòng)物，人類也隨之誕生了。文章最后講了令人深省的問題：The earth may become too hot for the lives on it.1.4 COMPREHENDING通過四個(gè)選擇填空題檢測(cè)學(xué)生對(duì)本文核心問題的理解：地球上生命的起源和延續(xù)需要那些條件？隨后

14、通過排序的方式幫助學(xué)生弄清本文的行文線索，也就是地球上生命的起源和發(fā)展歷程。最后提出兩個(gè)問題，考察學(xué)生的深層理解和推斷能力。1.5 LEARNING ABOUT LANGUAGE分詞匯和語法兩部分。其中，Discovering useful words and expressions是通過英文釋意，短文填空，詞語分類和單項(xiàng)選擇等練習(xí)在語境中掌握和運(yùn)用詞匯。Grammar是采用先發(fā)現(xiàn)后應(yīng)用的學(xué)習(xí)方法。先通過到課文中找句子，讓學(xué)生認(rèn)識(shí)主語從句，然后，設(shè)置一個(gè)用一手機(jī)發(fā)短信息的情景，讓學(xué)生進(jìn)行簡(jiǎn)單句與主語從句之間的轉(zhuǎn)換練習(xí)。最后設(shè)置情景來復(fù)習(xí)表語從句。1.6 USING LANGUAGE由Liste

15、ning、Reading和Speaking and Writing三部分交互組合而成。指導(dǎo)學(xué)生在聽和讀的輸入性學(xué)習(xí)之后，完成說和寫的輸出性應(yīng)用練習(xí)。Listening的內(nèi)容介紹三位科學(xué)巨匠。不僅通過聽力填表的形式訓(xùn)練學(xué)生捕捉細(xì)節(jié)的能力，還通過四選一的方式幫助學(xué)生找主題思想。在解釋對(duì)與錯(cuò)的過程中，教師可以適當(dāng)?shù)慕榻B一下概括主題的方法。Reading是一個(gè)科幻小故事，通過我和我的朋友乘宇宙飛船登月球的經(jīng)歷，介紹了重量、失重和地球引力等科學(xué)道理。Speaking 以Visiting the moon為話題，要求學(xué)生討論登月球需要攜帶的物品和在月球上可能遇到的困難。Writing要求學(xué)生找出登月球可能

16、遇到的三個(gè)困難并找出克服這些困難的方法。在聽說讀寫綜合提高的同時(shí)，培養(yǎng)了學(xué)生的創(chuàng)新意識(shí)和實(shí)踐能力。2教材重組 2.1 詞匯及表達(dá) 用一節(jié)課的時(shí)間，完成本單元重點(diǎn)詞匯及表達(dá)的講解。2.2 精讀可將 Warming up、Pre-reading、Reading 和Comprehending四部分整合在一起上一節(jié)閱讀課。2.3 語言學(xué)習(xí)包括Leaning about language和 Workbook中的 Using Words and expressions以及 Using Structures。2.4 聽力Using language中的 Listening與 Workbook中 Listen

17、ing和Listening task三部分話題較為接近，其中Listening部分是介紹三位對(duì)地球引力的認(rèn)識(shí)做出巨大貢獻(xiàn)的科學(xué)偉人。在提高聽力的同時(shí)，為下文的Reading部分作了鋪墊。Workbook中 Listening是關(guān)于轟動(dòng)一時(shí)的航天英雄楊利偉的故事。通過聽力練習(xí)，讓學(xué)生了解作為宇航員所需要哪些素質(zhì)。而Listening task中的聽力則是向?qū)W生展示space travel 的潛在價(jià)值。既然三部分都在談?wù)撆cAstronomy有關(guān)的內(nèi)容，所以放在一起處理比較合適。2.5 口語訓(xùn)練是把Using Language 中的Speaking 和 Workbook 中的 Talking 和 S

18、peaking task放在一起。這幾部分涉及到本單元的功能句，指導(dǎo)學(xué)生學(xué)會(huì)如何思考需要的東西，怎樣給別人以指示以及如何向別人問問題?？梢哉显谝黄鹕弦惶每谡Z課。2.6 泛讀 是把Using language中的Reading和Workbook中的Reading task 整合在一起。這兩部分利用science fiction story向讀者解釋gravity和black hole.2.7 寫作練習(xí)是把Using language中的Writing 和Workbook中的Writing Task以及Project整合在一起上一堂寫作練習(xí)課。3課型設(shè)計(jì)與課時(shí)分配1st period Words

19、 and Expressions2nd period Intensive Reading3rd period Language study 4th period Listening 5th period Extensive Reading 6th period Speaking7th period WritingIV. 分課時(shí)教案The First Period Words and ExpressionsTeaching goals 教學(xué)目標(biāo)Have students learn some useful new words and expressions.Teaching important

20、points 教學(xué)重點(diǎn)Let students learn effective ways to master those new vocabulary. Teaching difficult points教學(xué)難點(diǎn)Enable students to use the words and expressions of instructions correctly.Teaching methods教學(xué)方法Presentation; explanation; discussion; practice.Teaching aids教具準(zhǔn)備A computer, a blackboard.Teaching

21、procedures & ways教學(xué)過程與方式Step1: Greetings. T: Good morning class. S: Good morning MissT: Today well going to have a new unit. I know that youve previewed it. Whats it?S: Astronomy: the science of the starsT: Ok! Good! First of all, we should do some preparations for is. So lets learn the new words an

22、d expressions of it.Step2: Presentation, explanation and discussion.詞形變化1. violent adj.強(qiáng)暴的，猛烈的violence n.暴力，強(qiáng)暴；猛烈violently adv. 強(qiáng)暴地；猛烈地2. fundamental adj.基本(礎(chǔ))的n.pl.基本原則(法則) fundamentally adv. 基本地；根本地 fundament n. 基礎(chǔ)；根本3. development n.生長(zhǎng)，發(fā)展；新情況develop vt.發(fā)展；產(chǎn)生 vi.生長(zhǎng)；發(fā)展developed adj. 發(fā)達(dá)的developing a

23、dj. 發(fā)展的4. lay vt.放下；擺設(shè)；產(chǎn)(蛋) lay-laid-laid-layinglie vi. 躺，平放；位于lie-lay-lain-lyinglie n. & vi. 謊話；說謊lie-lied-lied-lying5. prevent vt. 預(yù)防，防止prevention n.預(yù)防；阻止；妨礙preventable adj.可防止的，可預(yù)防的6. gentle adj.和藹的；輕柔的gently adv.溫和地；靜靜地7. physics n.物理，物理學(xué)physicist n.物理學(xué)家physical adj.身體的；物理(學(xué))的；物質(zhì)的 1. system n. 系

24、統(tǒng)，體系；制度 systematic adj.(有）系統(tǒng)的；有條理的 systematically adj. （有）系統(tǒng)地；有條理地 搭配：the solar system 太陽系 a railway system 鐵路系統(tǒng) the capitalist system 資本主義制度 The computer system broke down. 計(jì)算機(jī)系統(tǒng)癱瘓了。 The teacher has a special system of teaching. 這位老師教學(xué)方法很獨(dú)特。2. theory n. 學(xué)說；理論 反義：practice 實(shí)踐 Darwins theory of evolut

25、ion 達(dá)爾文進(jìn)化論 The theory of relativity 相對(duì)論 Einstein put forward his new theory of relativity. 3. violent (adj.) 猛烈的；激烈的；a violent attack 猛烈的進(jìn)攻 violent dislike極其的厭惡 violent pain極度痛苦船在海上強(qiáng)烈的風(fēng)暴中沉沒。The boat sank in a violent storm at sea.4. in time: (sooner or later; eventually; )遲早,終于 Ill see him in time.

26、總有一天我會(huì)遇見他。 (for sth. /to do sth.): not late及時(shí) She will be back in time to prepare dinner.她來得及回來準(zhǔn)備晚飯。與time相關(guān)的短語: on time 按時(shí);準(zhǔn)時(shí) at one time 從前 for the time being 暫時(shí) from time to time 不時(shí)地 in no time 立刻,馬上 at times 有時(shí) at a time 每次;依次 once upon a time 從前 5. unlike prep. 不同；不像 Unlike him, his son is tall.

27、 adj. 不同的 The sisters are quite unlike. unlikely adv. 未必的; 不太可能的; 注意與 dislike “不喜歡”區(qū)分開來。6. exist vi. 存在；生存 existent adj. 存在的；生存的 existence n. 存在；生存搭配：exist in 存在于之中 exist on 靠為生（=live on) exist by 靠生存 in existence 現(xiàn)存的 come into existence=come into being 開始存在、成立They cant exist on the money he is earn

28、ing.The idea exists only in the minds of poets.When did this world come into existence?7. give birth to 1) 生（孩子） Shes just given birth to a healthy baby girl. 她剛剛生了個(gè)健康的女嬰。2) 產(chǎn)生 The extraordinary experience gave birth to his latest novel. 這段奇特的經(jīng)歷促成了他的最新的一部小說的誕生。8. in ones turn 輪到某人 Its in your turn t

29、o read the passge. He cooked the meal in his turn this week. in turn 依次、輪流 Please enter the room in turn. by turns 輪流 We kept watch by turns .我們輪流守望。9. prevent sth. / sb. (from) doing sth. 制止(防止)某人(某物)做某事Nothing can prevent this plan from being carried out. 阻止某人做某事 prevent sb. (from) doing sth. stop

30、 sb. (from) doing sth., keep sb from doing sth注意：keep sb. from doing sth.中from不可省略,但如在被動(dòng)語態(tài)中,他們中的from都不可省。10. puzzle n 迷，難題 v (使) 迷惑；（使）為難 Can you figure out this puzzle? 你能找到謎底嗎？ His behavior yesterday puzzled me . 他昨天的行為使我迷惑。11. pull n.(c)拉力;牽引力;扯引力If we want to make a trip into space, we must esca

31、pe the pull of gravity.2)（對(duì)他人的）影響，影響力She has a lot of pull in that company.3) 吸引力（常用單數(shù)）The tides depend on the pull of the moon.4) 拉，牽，扯（反義詞：push)Help me move this piano; you pull and Ill push.12. cheer up 感到高興；感到振奮 We cheered up at the news. cheer v. 加油，歡呼，喝彩 The people cheered the football team. c

32、heerful adj. cheerfully adv cheerfulness n.13. now that同since相似，語氣較弱，強(qiáng)調(diào)人們已知的事實(shí)。1. 既然你忙, 就讓我給你做吧。 Now that you are busy, let me do it for you.2. 既然人都齊了, 咱們開始干吧。 Now that everyone is here lets start work辨析：now that既然，由于，是連詞詞組，引導(dǎo)原因狀語從句，表示明顯的原因或即成的事實(shí)?？谡Z中that?？墒÷浴Ｆ渌龑?dǎo)原因狀語從句的連接詞；because因?yàn)?語氣較重，常用于回答why的提問

33、)since因?yàn)?，既然，由?可與now that互換)as因?yàn)?語氣較弱) for因?yàn)?并列連詞，引導(dǎo)一個(gè)分句，不能置于句首，表示進(jìn)一步補(bǔ)充說明)14. break out它與happen, take place, come out等詞的用法一樣，是不及物動(dòng)詞，不能帶賓語，不能用于被動(dòng)語態(tài)。1) 戰(zhàn)爭(zhēng)爆發(fā)The American Civil War broke out in 1861. 美國(guó)內(nèi)戰(zhàn)爆發(fā)于1861年。2)發(fā)生 爭(zhēng)吵 A quarrel broke out between them. 他們之間發(fā)生了爭(zhēng)吵。3) (火災(zāi))發(fā)生 Afirebrokeoutinhishouselastni

34、ght. 昨晚他家里失火了?？键c(diǎn) break out 通常指戰(zhàn)爭(zhēng)、疾病、災(zāi)害等的爆發(fā)。不及物動(dòng)詞短語，不能用于被動(dòng)語態(tài)。與break相關(guān)的短語:break down （機(jī)器）出故障，損壞；分解，起化學(xué)變化；破壞；拆散break in 破門而入; 打斷break away from 脫離; 打破陳規(guī)break through 突圍; 突破; 沖垮; 克服break up 打碎; 拆散; 分裂; 分解break ones word/promise 食言; 說話不算數(shù)15. watch out 注意，留神，小心Watch out! There is a car coming! look out 小心

35、，注意Look out! The road is full of holes.拓展： watch for sb/sth 觀察等待The cat was on the wall,watching for birds. 那只貓?jiān)趬ι纤艡C(jī)捕捉鳥兒。 Watch over 照管；監(jiān)督；保護(hù)Step3: practice and homefun.The Second Period Intensive ReadingTeaching goals 教學(xué)目標(biāo)1. Target language目標(biāo)語言a重點(diǎn)詞匯和短語 astronomy, atmosphere, system, violent, solid,

36、 explode, carbon, dioxide, oxygen, surface, planet, harmful, development, spread, method, depend, solar system, in time, preventfrom, depend onb重點(diǎn)句子1.What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. P252.Its exploded loudly with fire and r

37、ock, which were in time to produce the water vapour, carbon dioxide, oxygen, nitrogen and other gases, which were to make the earths atmosphere. 2. Ability goals a. Enable Ss to talk about the science of the stars, the development of life and space travel and b. Understand the text and answer the fo

38、llowing questions:c. Enable the Ss to understand the details about the passage, choosing the correct answer d. Retell the passage using key sentences.3. Learning ability goalsEnable Ss learn how to talk about the beginning of life on the earth.Teaching important points 教學(xué)重點(diǎn)a. Talk about the beginnin

39、g of life on the earth.Teaching difficult points教學(xué)難點(diǎn)a. Understand the beginning of life on the earth. b. Discuss the questions:What will our future be if the earth may become too hot for the lives on it?Why are humans the cleverest animals on the earth? Teaching methods教學(xué)方法a. Skimming and scanning b

40、. Asking-and-answering activity to check the Ss understanding of the text.Teaching aids教具準(zhǔn)備A recorder, a computer, a projectorTeaching procedures & ways教學(xué)過程與方式Step 1PresentationStep 2 Reading.ScanningGet the Ss to read the passage quickly and accurately and meanwhile help the Ss to form a good habit

41、 of reading. Step3 Passage Analyzing I Text Chart .How life began on the earthII Text RetellingRetell the text using about 100 words.Notes: Use the two questions and the chart to retell the passage;III Moral Education Teacher can guide the Ss to understand the text deep, making the Ss to have a scie

42、ntific attitude towards science: the beginning of universe。Step4 Writing Techniques1.Writing Characteristic1) Lead in the topic of how life began on the earth by beginning with two questions so as to arouse the readers strong curiosity and interest.2) The passage tells the readers the scientific ide

43、a in order of time. 2. Writing StyleThe text is common science writing, which tells the readers how the universe developed and how life began on the earth. 3. Main IdeaThrough the writers clear description, we know that how life began on the earth. Its a long and slow process. From the passage, we k

44、now that earth is the best place for human to live on. Step 5 HomefunRetell the passage according to the form.Remember important language points.The Third Period Language studyTeaching goals 教學(xué)目標(biāo)1 Target language目標(biāo)語言a重點(diǎn)詞匯和短語 suffer, settle , realize , worry about , have got to, tie up b重點(diǎn)句子：He was v

45、ery disappointed. What it was to become was a mystery. To save money, you must use as few words as possible. c. Practise talking about problems in study or lifeMy problem isThe difficulty isMy trouble isThe question isMy advice isWhat I think about it isThe fact isMy suggestion is2 Ability goals 能力目

46、標(biāo)Learn to use Noun Clauses as the subject.3 Learning ability goals 學(xué)能目標(biāo)Let Ss learn how to use Noun Clauses as the subjectTeaching important points教學(xué)重點(diǎn)the use of Noun Clauses as the subjectTeaching difficult points教學(xué)難點(diǎn) How to teach the Ss to learn to use Noun Clauses as the subjectTeaching methods教學(xué)

47、方法Learn grammar through practiceTeaching aids教具準(zhǔn)備A projector A blackboardTeaching procedures & ways教學(xué)過程與方式Step I Revision 1. Check retelling of the passage.The explosion of the earth produced water vapor, which turned into water when the earth cooled down. Water allowed the earth to dissolve harmful

48、 gases into the oceans and seas. Translate the following sentences.Suggested answers:1. Youll succeed in time. My car is different from yours. Who is the person standing by the door?2. Hes always the first to come and the last to leave. Now that you have grown up you can decide it yourself.Step II W

49、ord studyThis part is a consolidation of the words learnt in this unit. Ask the Ss to do the exercise independently.Key to the exercises:Part1 Across: 2.float 5.mass 6.presence 8.carbon 9.mobileDown: 1.planet 2.force 3.astronomy 4.explore 7.circlePart2 1.energetic 2.surface 3.depends on 4.gradually

50、5.exists 6.preventfrom 7.spread 8.are multiplying 9.Now that6. Part3 can be Homefun if time is limited.Step III Preparation Show some example sentences on the screen.1 A tree has fallen across the road.2 You are a student.3 To find your way can be a problem.4 Smoking is bad for you.5 “How do you do?

51、” is a greeting.6 What she said is not yet known.7 That we shall be late is certain.8 Its certain that we shall be late. Step IV Grammar1.Give them some time to find the sentences in the passage. Then collect answers from the class.Show the answers:1. Because it was not clear whether the solid shape

52、 was to last or not.2. What scientists think is that the earth was different because of 3. Whether life will continue on the earth for millions of years to come will depend on 2.Show typical examples of how to make a Subject Clause. Guide the Ss to find out what changes we have to make when we make

53、a sentence or combine two sentences using Subject Clause. Teachers show the example and Ss write down the sentences.Show the answers:How fish developed from early shellfish is well-known.What reptiles look like and how large they are is strange. The extinction of dinosaur is a mystery.The importance

54、 of early plants was not known to scientists.3.T: Turn to Page64. Read the following passage quickly and finish the eight sentences.Check the answer: 1.what 2.what 3.why 4.what 5.where 6.when 7.how 8.what4.Have a discussion in pairs. The topic is “My Problem”. One talks about problems in his study o

55、r life, the other gives some advice. Remind the students to use the following structures:My problem isThe difficulty isMy trouble isThe question isMy advice isWhat I think about it isThe fact isMy suggestion isSample dialogue:S1: How are you getting on with your English?S2: Not very well.S1: Whats w

56、rong?S2: My problem is that I cant remember so many words.S1: You should spend more time in remembering them.S2: The fact is that I have spent too much time. And the question is that I remember them quickly and I forget them quickly, too.S1: My advice is that you can remember the words in sentences.S2: Good idea! Ill take your