九年级上册Lesson 30 Science Affects Us教案
展开第六课时 Lesson 30: Science Affects Us
重点单词 | affect v. 影响 suggest v. 建议，提议；暗示 development n. 发展 mobile phone n. 移动电话 discovery n. 发现；发觉 |
重点短语 | turn...over 使……翻转 push up 向上推 push down 向下按 in place 原地；在适当的位置 better and better 越来越好 |
重点句子 | 1.The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. 压在纸板上的气压比从罐子里往下推的水要高。 2.The higher air pressure outside the jar holds the cardboard in place. 罐子外面的空气压力越大，纸板就会固定住。 3.Scientific discoveries are making our lives better and better. 科学发现使我们的生活越来越好。 |
教学难点 | 比较级＋and＋比较级 |
环节1 新课导入
A duty report.
设计意图：为学生创造口语表达的机会，锻炼口语交际能力。
环节2
- Ask the students read the passage by themselves and underline some important phrases.
- Ask the students to read the text silently and answer the following questions.
(1) What did Jenny describe in her email？(Brain，Danny and she did an experiment in science class.)
(2) Which of the air pressure is higher，pushing up on the cardboard or pushing down from inside the jar？(Pushing up on the cardboard.)
(3) Why is science important？(Scientific discoveries are making our lives better and better.)
- Then do Exercise 1 and 2 together.
- Work in pairs and discuss the topic in Exercise 3.
- 要点点拨。
（1）surprise v.使某人大吃一惊；n.惊奇
（2）push up on/push down on，向上托举/向下压
（3）better and better 越来越好
比较级＋and＋比较级：表示“越来越……”。
（4）every day 每天，作状语；everyday形容词，每天的，日常的，作定语。.
设计意图：让学生能抓住文中重点词汇和句型，熟读记忆。
Unit 4 Stories and Poems 第六课时 Lesson 24: Writing a Poem | |
turn...over, push up, push down, in place, better and better | 1.The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. 2.The higher air pressure outside the jar holds the cardboard in place. 3.Scientific discoveries are making our lives better and better. |
请完成本课对应训练！
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