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1、Unit4 Astronomy: the science of the stars单 元 学 习 目 标 导 航类别新课标要求掌握的项目话题1.Talk about the science of the stars, the development of life and space travel and gravity 2.Practise giving instructions and talking abut problems in study or life词语单词astronomy, atmosphere, system, violent, solid, explode, carbo
2、n, dioxide, oxygen, surface, planet, harmful, development, spread, method, depend, exist, presence, telescope, disappoint, disappointed, publish, publishing, gravity, force, gradually, cheer, float, mass词组solar system, in time, preventfrom, depend on, cheer up, now that, get the hang of, break out,
3、give birth to, watch out, block out, carbon dioxide功 能1. 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? How will it end? Why is the universe the way it was? How much do you know about universe?Do you know s
4、omething about gravity/about black holes?2. Giving instructions Please look at/ listen to Please check that You need Please pay attention to Dont forget to Youd better Make sure you Watch out for You mustnt3. Talking about problems in study or lifeMy problem /trouble is The difficulty/question is My
5、 advice/suggestion is What I think about it is The fact is 语法主语从句 What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun. What is even more important is that as the earth cooled down, water began to appear on its surface.班级_ 姓名_小组_第一课时 warming up
6、 & pre-reading 自主学习学案学习目标：1. 语言目标 Language aims: 2. 能力目标 Ability aims:1) 进一步熟悉掌握一些阅读技巧，比如快速寻找文章细节信息(scanning)、归纳和总结（summarizing）。2) 让学生学会表达自己的思想。3) 情感目标 Emotional aims: 让学生弄清楚什么是科学思想，什么是宗教信仰或文化传统。在探讨生命的起源的科学道理之前，交流一下有关宇宙的起源的种种传说,调动学生的相关知识，激活学生的思维。重点 key points:Talk about the beginning of life on the
7、 earth.b. Discuss the order of development of life难点 important points: Understand the beginning of life on the earth. Step I some questions in warming up 1. How much do you know about the universe?What are they?_2. Who is the first man landing on the moon?_Step II pre-reading Task one: Fill in the b
8、lanks after listening1) According to a widely accepted theory, the universe began with a “_” that threw matter in all directions.2) It was not immediately obvious that _ was to be fundamental to the development of _.3) They are putting too much CO2 into the atmosphere, which prevent _ from escaping
9、from the earth.Task two: careful reading and write down the main idea. paragraph 1: _.paragraph 2: The formation of _.paragraph 3: The importance of _.paragraph 4: _of plants and animals on the earth. paragraph 5: _ of humans and their impact on the earth.Task three : Put the order of development of
10、 life into a timeline.1 Insects and amphibians appeared 2 Dinosaurs appeared 3 The earth became a solid ball 4 Small plants greaw on the water 5 Reptiles appeared 6 Plants began to grow on dry land. 7 The earth was a cloud of dust. 8 Water appeared on the earth 9 Shellfish and other fish appeared. 1
11、0 The universe began with a “Big Bang”11 Clever animals with hands and feet appeared. 12 Mammals appeared.Answers: _Task Four: summaryAfter the “Big Bang”, the earth was just a cloud of dust. It _ loudly with fire and rock, which were _ _to produce the water vapour, _ and other gases. Then small pla
12、nts grew . They _and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to _on land. When the plants grew into forests,_ appeared for the first time. They produced young generally by _eggs. When dinosaurs disappeared, _ became more important. Now small clever animals with _appeared and _all over the world. As time _ they covered the earth and they are putting too much carbon dioxide into the _, which _heat _ _ from the earth into space. Whether life will continue on earth for millions of years to come will _whether this problem can be solved.La
