Unit 4 Astronomy教学设计.doc

Unit 4 Astronomy: the science of starsWarming-up and Reading 教学设计1. Teaching Aimsa. Get students to learn the useful new words and expressions in this part: astronomy, astronomer, astronaut, the solar system, the universe, the Milky way, the Galaxyb. Develop studentsreading ability and let them learn different reading skills.c. Enable students to know about the development of the earth.d. Train students interest in science and stimulate their love for astronomy.2. Teaching important pointsa. Let students read the passage and learn about the development of the earth.b. Get students to learn different reading skills.3. Teaching difficult points a. Enable students to understand the passage and know about the development of the earth.b. Let students learn how to use different reading skills for different reading purpose.4. Teaching aidsA multiple-media computer5. Teaching ProceduresStep 1. Show teaching aimsStep 2. Warming- up1.Introduce some words related to astronomy.astronomythe universe/space the Galaxy/the Milky wayastronomer astronautthe solar system stars, planets, satellites2. Let students say out the names of the eight planets and the correct order of their distance to the sun The names of the eight planets: Mercury, Uranus, Mars, Neptune, Satune, Venus, Earth, Jupiter3. Discuss how the names of the planets came from.Step 3. Reading 1. Listen to the tape.2. Let students discuss Exercises 1 on page 27 in group of four.Main idea of each paragraphPara.1 How the universe beganPara.2 How the earth and water beganPara.3 The importance of water for lifePara.4 How plants and animals beganPara.5 The arrival of hum