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1、人教版英語精品資料（精修版）第三冊第四單元第一課時閱讀導學案Book 3 Unit 4 Astronomy: the science of the starsWarming Up & ReadingLearning Goals:1. Arouse students interest to search for the mystery of space.2. Develop Ssreading ability.Step I: Lead in Task 1: Go over words about names of subject and scientists in these fieldsHey

2、. Do you like. Do you want to be an/a.biology(生物學) biologist(生物學家) chemistry chemist(化學家)Physics physicist(物理學家)geography（地質(zhì)學） geologist(地質(zhì)學家）music musicianpolitics(政治) politician(政治家)astronomy(天文學) astronomer(天文學家）Task 2: Talk about something about astronomy. Here is the picture of the solar system

3、.Can you locate (定位) the eight planets in the picture? Uranus Venus Earth Mars Mercury Jupiter Neptune Saturn solar systemThey are : 、 、 、 、 、 、 、 、Research in class Read the text book in Page 25 “How life begin on earth”.Step 2 Thinking &Discussing(1) Scan and predict. What is the passage about? It

4、 is about how on the earth.(2)Skim and find the main idea of each paragraphPara. 1 The arrival of humans and their impact on the earth. Para. 2 The development of plants and animals on the earth.Para. 3 A widely accepted theory about the formation of the universe.Para. 4 The formation (形成) of the ea

5、rth.Para. 5 The importance of water for life.(2) Careful reading: read the text carefully,then fill in the chat of“ How life began on the earth”1 small plants in waterwater3 2 shellfish and all sorts of fish6 4 511. human10. 7 reptiles (on land)8 9Step 3 Discussing and presenting your answers to you

6、r groupmats.Step 4TestingTrue (T) or False (F).1. The earth appeared before the Big Bang happened. 2. The original atmosphere consisted of nitrogen and oxygen. 3. The main difference between the earth and other planets is that there is water on the earth. 4. Life began in water and then on land.5. M

7、ammals appeared before the development of dinosaurs. 6. Dinosaurs could give birth to young baby animals and produced milk to feed them. 7. Human beings produce too much carbon dioxide which causes the global warming on the earth. 8. According to the text, human beings would disappear in the end. Re

8、ading comprehension1. How were stars and other bodies created?A .Atoms combined to create them. B Clouds of dust combined to create them.C.Water combined to create them.D. Gases combined to create them.2. Which is the most important for life appearing on the earth?A. Fire B.Rock C.Water D.Clouds3. I

9、t can be known from the passage that_.A. plants and animals appeared on the earth at the same timeB. plants appeared later on the earth than animalsC. early shellfish appeared earlier than plantsD. .animals appeared later on the earth than plants4. How many years did dinosaurs exist on the earth?A.

10、More than 140 billion yearsB. .More than 140 million yearsC. .More than 140 thousand yearsD. .More than 140 years5. Why can the earth become too hot to live on?A. Small clever animals produce more heat.B. .Small clever animals produce too much carbon dioxide.C. .Small clever animals dont want heat to escape from the earth.D. .Small clever animals like to live on a hot planet.