《Unit4Astronomy课件》由会员分享，可在线阅读，更多相关《Unit4Astronomy课件（26页珍藏版）》请在金锄头文库上搜索。
1、Unit4+AstronomyUnit4+Astronomy课件课件Pangu separates the sky from the earthPanGuThe Goddess Nuwa mended the heaven and created human beingsReading What is the passage about?Its about _on the earth.the development of lifeMatch each paragraph with its main idea.(连线)Para 1Para 2Para 3Para 4Para 5A).The im
2、portance of water for lifeB) A widely accepted theory about the formation(形成形成) of the universeC) The arrival of humans and their impact on the earthD) The formation of the earthE) The development of plants and animals on the earthPara 1Para 2Para 3Para 4Para 5A widely accepted theory about the form
3、ation of the universeThe formation of the earthThe importance of water for lifeThe development of plants and animals on the earthThe arrival of humans and their impact on the earthPart 1 The development of the earthPart 2 The development of the lifeMainbody 1.After the “Big Bang”, what was the earth
4、 like?3. Why was the earth different from other planets?A. It produced much heat. B.The water remained.C. Water disappeared. D.It was the oldest planet.2. What appeared when the earth cooled down?Part 1 (Para.1-3)1. After the Big Bang, what was the earth like? a cloud of dust a solid globe Part 1 (P
5、ara.1-3) water2. What appeared when the earth cooled down?Hangzhou Foreign Languages School Bao Xiaoming 3. Why was the earth different from other planets?A. It produced much heat. B.The water remained.C. Water disappeared. D.It was the oldest planet.2 _1 small plants in water3 green plants on land4
6、 _5 _6 forests7_8_9_2 shellfish and all sorts of fish4 insects (on land)5 amphibians (on land and in water)7 reptiles (on land)8 dinosaurs (on land)9 mammals (on land)lifeplantsanimalsPart2: (Para.4-5)reptilesamphibianamphibians s and insects and insectsdinosaursdinosaurs mammalsMan had evolved(进化）进
7、化）from apes（猿）（猿）. waterland complex simpleFrom the pictures above, we can know life changes fromto few kindsa wide varietyadvancedlow After the “big bang”, the earth was still just a cloud of _. Then it _with fire and rock, which were _ to produce many gases. As the earth cooled down, _ appeared. d
8、ustexplodedin timewaterHangzhou Foreign Languages School Bao Xiaoming Then _ grew. They multiplied and filled the oceans and seas with _. Many millions of years later the first _ _began to appear on land. When the plants grew to forests, _ appeared for the first time. They produced young by _. When
9、 dinosaurs disappeared, _appeared,which were very different from other life forms. Finally, _ appeared, but they may make the earth become _ to live on.small plantsoxygengreen reptileslaying eggsmammalsplantstoo hothuman beingsHangzhou Foreign Languages School Bao Xiaoming 说说吧说说吧As a student, what can we do for the earth?Only if we care will we help,only if we help shall we be saved! If you are an astronomer now, please give a speech about the development of life. Thank you very much.Goodbye!结束结束
