1、Step1 Warming up,What are the names of the eight planets that circle our sun?,海王星 Saturn,水星 Uranus,金星 Venus,地球 Earth,火星 Mars,木星 Mercury,土星 Jupiter,天王星 Neptune,A Quiz Game,1. How old is the earth? A. About 3.5 billion years B. About 4.5 billion years C. About 5.5 billion years D. About 6.5 billion ye

2、ars 2. _ of the earth surface is covered by water. A. 20% B. 30% C. 50% D. 70%,3. How many planets are there in the Solar System? A. 6 B. 7 C. 8 D. 9 4. What is the total population of humans on the earth? A. About 3.5 billion B. About 4.5 billion C. About 5.5 billion D. About 6.5 billion,5. How lon

3、g does the rotation (自轉(zhuǎn)) of the earth take? A. 12 hours B. 24 hours C. a month D. 365 days 6. Which continent is the smallest? A. Africa B. North America C. South America D. Oceania 7. On what day is the Earth day celebrated? A. April 22 B. May 4 C. August 21 D. November 11,8. Which ocean is the lar

4、gest? A. The Pacific Ocean B. The Arctic Ocean C. The Indian Ocean D. The Atlantic Ocean 9. Which country has the largest area? A. Canada B. China C. Russia D. U.S.A,Step 2 Pre-reading,1. How did the universe begin?2. How did life begin on the earth?,There are different legends(傳說) of how the univer

5、se and life began in different cultures:,In Chinese culture,Pangu separates the sky from the earth.,中國(guó)神話傳說中有盤古開天地的說法。巨人盤古用一把利斧劈開混沌, 將天地分開。死后, 他的氣息化成風(fēng)和云, 聲音變成轟轟的雷聲, 左眼化為太陽(yáng), 右眼化為月亮, 手足與四肢變成大地的四極與五方的名山, 血液化成江河,筋脈鋪成道路, 肌肉形成田地, 須發(fā)成為星星, 牙齒和骨骼化為金屬、珍珠、玉石, 汗水成為滋潤(rùn)萬(wàn)物生長(zhǎng)的甘霖和雨露。,Nvwa made humans.,In western cultu

6、re: God created the world in seven days,Do you know what a scientific idea is?,1. The universe began from the Big Bang.,2. Life first began in the sea on the earth.,3. Life was brought to the earth by ET from outer space.,Whats the writing style of the text?,A. Narrative 記敘文 B. Explanation 說明文 C. Es

7、say 散文,11111111111111111111111111111,111111111111111111111111111,1. Whats the main idea of the text? 2. How many parts can the text be divided into? Whats the main idea for each part?,Step 3: Reading Fast-reading,Para.1 Para.2 Para.3 Para.4 Para.5,A_ about how the universe was formed,The_ of the ear

8、th,The importance of_ for life,The_ of plants and animals,The arrival of _ and their effects on the earth,theory,formation,water,development,humans,How life began on the earth,Lets get to know how life began on the earth,Task two: Read paragraph 1-3 quickly by yourselves.,After the “Big Bang”, what

9、happened on the earth ?,Who knows how life began on the earth exactly? A. Scientists. B. Astronomers. C. No one. D. Aliens (外星人). 2. Why was the earth different from other planets? It produced a lot of heat. B. The water remained. C. Water disappeared. D. It was the oldest planet.,3. Why was life ab

10、le to develop on the earth but not on other planets? The earth had a solid shape. B. The earth did not have harmful gases in its atmosphere. C. The water stayed on the earth but not on other planets. D. The earth was not too hot and not too cold.,Stage 1: The development of the earth,(1) After the B

11、ig Bang, what happened?,a cloud of dust,a violent solid ball,exploded with fire and rock,Produced carbon,nitrogen, water vapor and gases,(2) What happened next?,(3) What did water vapour and gases make?,the earths atmosphere,Water appeared which is important for the beginning of life on the earth.,(

12、4) What appeared on the earth then?,(5) What did the water form?,oceans and seas,retell how the earth and water come about,Big Bang,A cloud of dust,A solid globe,Exploded loudly with fire and rock,carbon, nitrogen, water vapor and other gases,the earths atmosphere,The earth cooled down,Water appeare

13、d,Read paragraph 4 and 5 quickly, and find out the order of development of life on the earth,arrival of small plants in water,What life developed after water appeared?,early shellfish and all sorts of fish,Stage 2: The development of life in water,Stage 3: The development of life on land.,green plan

14、ts on land,insects on land,amphibians on land and in the water,(1) What life developed after the life in water?,reptiles on land,dinosaurs on land,(2) What life developed after forests appeared?,How do reptiles produce young?,by laying eggs,mammals on land,(3) What life developed after dinosaurs?,Ho

15、w do mammals produce young?,by giving birth to baby animals and producing milk to feed them.,humans came into being,Stage 4: The development of humans,What life developed after mammals?,They developed new methods of growing food, hunting,and moving around.,1. What did humans develop?,They are puttin

16、g too much carbon dioxide into the atmosphere.,2. What problem are humans causing?,Step 4 Comprehending,1. Why was the earth different from other planets?,2. Why was life able to develop on the earth but not on other planets?,3. Why was it necessary for plants to grow before animals?,4. What problem

17、 is caused by human beings?,The water remained.,The earth did not have harmful gases in its atmosphere.,Plants provided oxygen for animals to breathe.,They cause global warming.,According to the pictures, have a try to retell the development of life.,Put the order of development of life into a time

18、line. insects and amphibians appear a solid ball reptiles appear a cloud of dust shellfish and other fish appear dinosaurs appear small plants grow on the water plants begin to grow on dry land presence of water mammals (including humans )appear,D,B,I,G,E,H,A,C,F,J,Discussion Why is it wrong in films and stories to show dinosaurs and people together?,Dinosaurs died