【正文】 now that gravity has changed. now that: because of the fact that Now that I’m free, I can enjoy music for a while. Now that you’ve grown up you can decide it yourself. Passage Analyzing I Text Chart . How life began on the earth 1 small plants in water 2 shellfish and all sorts of fish 3 green plants on land 4 insects(on land) 5 amphibian(on land and in water) 6 forests water II Text Retelling Retell the text using about 100 words. Notes: Use the two questions and the chart to retell the passage。 泛讀 是把 Using language中的 Reading和 Workbook中的 Reading task 整合在一起。既然三部分都在談?wù)撆c Astronomy 有關(guān)的內(nèi)容，所以放在一起處理比較合適。在提高聽力的同時，為下文的 Reading部分作了鋪墊。在聽說讀寫綜合提高的同時，培養(yǎng)了學(xué)生的創(chuàng)新意識和實踐能力。在解釋對與錯的過程中，教師可以適當?shù)慕榻B一下概括主題的方法。 USING LANGUAGE 由 Listening、 Reading和 Speaking and Writing三部分交互組合而成。其中， Discovering useful words and expressions 是通過英文釋意，短文填空，詞語分類和單項選擇等練習(xí)在語境中掌握和運用詞匯。最初的動物靠孵化繁衍后代，后來出現(xiàn)了哺乳動物，人類也隨之誕生了。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)宇宙的起源的種 種傳說，既有趣味性，又能調(diào)動學(xué)生的相關(guān)知識，激活學(xué)生的思維。 Unit4 Astronomy: the science of the stars I 單元教學(xué)目標 技能目 標 Goals Talk about the science of the stars, the development of life and space travel and gravity Practise giving instructions Practise talking abut problems in study or life Learn to use Noun Clauses as the subject Learn to write an essay to show your problems and the way to overe them. II. 目標語言 功 能 句 式 Talk about the science of the stars, the development of life and space travel and gravity Where do we e 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 space travel? Do you know something about gravity? Do you know something about black holes? Practise giving instructions Please look at/ listen to… Please check that… You need… Please pay attention to… Don’t fet to… You’d better… Make sure you… Watch out for… You mustn’t… Practice talking about problems in study or life My problem is… The difficulty is… My trouble is… The question is… My advice is… What I think about it is… The fact is… My suggestion is… 詞 1 四會詞匯 astronomy, atmosphere, system, violent, solid, explode, carbon, dioxide, oxygen, surface, pla, harmful, development, spread, method, depend, exist, presence, telescope, disappoint, disappointed, publish, publishing, gravity, force, gradually, cheer, float, mass 2 認讀詞匯 匯 astronomer, biochemistry, geophysics, solar, Big Bang, vapour, nitrogen, dissolve, amphibian, reptile, generally, mammal, global, et, Issac Newton, Albert Einstein, Stephen Hawking, lessen, weightlessly, cabin, exhaust, exclaim 3 詞組 solar system, in time, prevent… from, depend on, cheer up, now that, get the hang of, break out 語 法 Noun Clauses as the subject Noun 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 this Noun Clause are: that, whether, who, what, which, when, where, how, why, etc.. Example 1. What it was to bee was a mystery. 2. It was not clear whether the solid shape was to last or not. 重 點 句 子 1. What it was to bee was a mystery until the dust began to slowly bine into a ball moving around the sun. P25 2. It’s 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 earth’s atmosphere. P25 3. It allowed the earth to dissolve harmful gases, which had bee part of the earth’s atmosphere, into the oceans and seas. P25 4. Whether life will continue on the earth for millions of years to e will depend on whether this problem can be solved. P26 5. 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 earth’s. P30 6. Walking does need a bit of practice now that gravity has changed. P31 7. We watched, amazed as fire broke out on the outside of the spaceship the earth’s gravity increased. P31 8. 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 be answered, before we can hope to have a plete picture of the universe we live in. ： ： 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 bee too hot for the lives on it. Then 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“地球的將來如何”的熱烈討論，通過這些討論會激發(fā)學(xué)生對天文學(xué)了解和探究的強烈興趣。 PREREADING 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)?？茖W(xué)家認為，地球上的生命首先誕生于水中，上百萬年后，陸地上才長出綠色植物，隨后出現(xiàn)了陸棲動物和水陸兩棲動物。 LEARNING ABOUT LANGUAGE 分詞匯和語法兩部分。最后設(shè)置情景來復(fù)習(xí)表語從句。不僅通過聽力填表的形式訓(xùn)練學(xué)生捕捉細節(jié)的能力，還通過四選一的方式幫助學(xué)生找主題思想。 Writing要求學(xué)生找出登月球可能遇到的三個困難并找出克服這些困難的方法。 聽力 Using language 中的 Listening與 Workbook 中 Listening和 Listening task 三部分話題較為接近，其中 Listening 部分是介紹三位對地球引力的認識做出巨大貢獻的科學(xué)偉人。而 Listening task 中的聽力則是向?qū)W生展示 space travel 的潛在價值?？梢哉显谝黄鹕弦惶每谡Z課。 ways 教學(xué)過程與方式 Step I Presentation T: Hello, everyone! Today we’ll e to Unit4 Astronomy. Before that I have a question: Where do we e from? Or we can say: Who are our ancestors? S1: Monkeys! S2: Beijing Ren who lived many years ago. S3: Reptiles. S4: Mammals. S5: Amphibians. S6: Dinosaurs. T: Very good! Can you put them in right order? S7: Amphibians, Reptiles, Dinosaurs, Mammals, Beijing Ren T: Do you know what it was like before life appeared on earth? S8: It was full of water, perhaps. T: Before that, what was it like? S9: Sorry, I don’t know. T: Do you want to get more information? Today we’ll learn something about How Life Began on the Earth