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学习必备欢迎下载Reading Teaching goals 教学目标1. Target language 目标语言重点词语： theory, atom, billion, globe, violent, carbon, atmosphere, fundamental, harmful, acid, multiply, oxygen, exist, prevent, dioxide 2. Ability goals 能力目标a. Enable Ss to 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 space travel? Do you know something about gravity? b. Understand the text and answer the following questions: What was there on the earth before life could begin? Why do scientists think there has never been life on the moon? Why did animals first appear in the seas? Why did green plants help life to develop? Why were mammals different from other animals? c. Enable the Ss to understand the details about the passage, choosing the correct answer according to the text and put the order of development of life into a time line and answer questions. d. Retell the passage using key sentences. 3. Learning ability goals 学能目标Enable Ss to learn how to talk about the beginning of life on the earth. Teaching important points教学重点a. Talk about the beginning of life on the earth. Why did animals first appear in the seas? 名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 1 页，共 6 页 - - - - - - - - - 学习必备欢迎下载Why did green plants help life to develop? b. Discuss the order of development of life. Teaching difficult points 教学难点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教学方法a. Skimming and scanning. b. Asking-and-answering activity to check the Ss understanding of the text.c. Individual, pair or group work to finish each task. d. Discussion. Teaching aids教具准备A recorder, a computer and a projector. Teaching procedures & ways教学过程与方式Step I Warming up Enjoy a video clip and answer the following question What can you see in the video clip? 名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 2 页，共 6 页 - - - - - - - - - 学习必备欢迎下载dinos aur(恐龙)shellfis h（水生有壳动物）atmos phere(大气层)human beingmammal(哺乳动物)reptile（爬行动物）a solid g lobeWe c an s eeBrainstormingBig Bang presence of waterplanta cloud of dustinsect(昆虫)/amphibian(两栖动物 )Step II Predict the topic of the class. That is how life began on the earth. Step Listen to the passage and match the main idea with each paragraph. Para. 1 The formation (形成 ) of the earth.Para. 2The importance of water for life.Para. 3A widely accepted theory about the formation of the universe.Para. 4The arrival of humans and their impact(影响) on the earth. Para. 5 The development of plants and animals on the earth.Step IVFill in the blanks in the following forms. 名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 3 页，共 6 页 - - - - - - - - - 学习必备欢迎下载Time What happened Big Bang _ began to form and combine to create stars and other bodies. Between 4.5 and 3.8 billion years ago Dust settled into a solid and _ globe. The earth exploded to produce its _.The continued _ of water allowed the earth to dissolve harmful gases and _ into the oceans and seas. Many millions of years later The first small plants on the surface of the water produced _. Early _ and all sorts of fish appeared. Green plants began to grow on land. Insects and _ appeared. Many millions of years later _ appeared and they laid eggs. Dinosaurs developed, laid eggs and _ for more than 140 million years. Mammals rose and _ babies. Now Humans produce too much carbon _, making the earth too hot. 名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 4 页，共 6 页 - - - - - - - - - 学习必备欢迎下载Step V 高考链接1，Why was the earth different from other planets? A. It produced a lot of heat. B. The water remained. C. Water disappeared. D. It was the oldest planet. 2，What is the main idea of this passage? A. It tells us how life begins to appear on the earth. B. It tells us why green plants grow before animals. C. It tells us water plays an important role in the development of life. D. It tells us the earth is not too hot and not too cold. 3，Why was it necessary for plants 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 hunters in forest. D. It was easier for plants to grow. 4, According to the passage, what problem is caused by humans? A. They exist everywhere on the earth. B. They cause global warming. C. They find new methods of growing crops. D. They enjoy hunting and fishing. Summary the development of life on the earth With pictures I show the the development of life on the earth 名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 5 页，共 6 页 - - - - - - - - - 学习必备欢迎下载We all know our earth is changing worse and worse. Therefore, please make up a dialogue about what we should do to protect it? You can use the following words or phrases to help you: prevent from harmful global warming carbon dioxide in ones turn depend on as a result thus atmosphere, etcShare a song about the earth Earth Song名师归纳总结 精品学习资料 - - - - - - - - - - - - - - -精心整理归纳 精选学习资料 - - - - - - - - - - - - - - - 第 6 页，共 6 页 - - - - - - - - -
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