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1、List the subjects that youre learning now in your curriculum (课程) Chinese English Mathematics Chemistry Physics Geography History PoliticsIs there any relationship between each subject and others?_ the scientific study of treatment of diseases and injuries._ the study of the chemistry of living thin
2、gs._ the scientific study of the earths atmosphere, oceans and climate._ the scientific study of objects in space, such as planets, stars, comets(彗星) and “black holes”.biochemistry geophysics medicine astronomyastronomybiochemistrygeophysicsmedicineAstronomy: the science of the starsHow much do you
3、knowabout the universe? the Milky Waythe universethe universethe Milky Waysolar systemthe earthis made up of the sun and the objects that orbit it. Nine planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. Pangu separates the sky from the earth造人Nuwa makes men How did th
4、e universe begin?HOW LIFE BEGAN ON THE EARTHNew words and expressions：lviolent: (adj.) strong or severe 猛烈的 (n.) violencelsolid: (adj.) without holes; strong and firm实心的，固体 的lexplode: (vt. blow up 爆炸，爆发 (n.) explosionlin time: not late 及时 (here) eventually 最终lwater vapour carbon dioxide (CO2) oxygen
5、 nitrogenlatmosphere (n.) 大气层；气氛ldissolve: become liquid 溶解lharmful: causing harm 有害的lmultiply: (v.) produce large numbers of offspring 繁殖lamphibian reptile mammal lspread : (vt. follow from sth.视某事物而定；取决于某事物两栖动物爬行动物哺乳动物Task 1Think about what you have read and make choices. 1. Why was the earth diff
6、erent from other plants? 2. A. It produced a lot of heat. B. The water remained. 3. C. Water disappeared. D. It was the oldest planet. 4. 2. Why was life able to develop on the earth but not on 5. other planets? A. The earth had a solid shape.B. The earth did not have harmful gases in its atmosphere
7、.C. The water stayed on the earth but not on other planets.D. The earth was not too hot and not too cold.3. Why was it necessary for planets to grow before animals? A. Animals needed plants to protect them from the sun. B. Plants provided oxygen for animals to breathe. C. Animals could hide from hun
8、ters in forests. D. It was easier for plants to grow. 4. What problem is caused by human beings? A. They exist everywhere on the earth.B. They caused global warming.C. They find new methods of growing crops.D. They enjoy hunting and fishing.Para.1: What was there on the earth before life could begin
9、? 1) How did come into being on the earth?2) Whats the importance of the presence of water on the earth?The explosion of the earth produced water vapour, which turned into water when the earth cooled down.It allowed the earth to dissolve harmful gases into oceans and seas, which made it possible for
10、 life to begin to develop.Task 2waterScanningRead Para 1. and find out how the earth came into being.a cloud of energetic dustBig Banga ballslowly combinethe earth cooled downit exploded and produced kinds of gaseswaterthe earths atmosphereScanningRead Para 1. and find out how the earth came into be
11、ing.a cloud of energetic dustBig Banga ballslowly combinethe earth cooled downit exploded and produced kinds of gaseswaterthe earths atmospherePara.2-4: Development of Lifesmall plants in watershellfish and all sorts of fishgreen plants on landforestsinsects (on land) amphibian (on land and in water
12、)reptiles (on land) dinosaurs (on land) mammals (on land)12364、57、8、9animalsplantsTask 31.What do you think of the last two sentences in the last paragraph?2.Is the earth getting warmer each year? Can you feel it?3. What will global warming bring to us? Give examples. How can human solve “this problem”?
