
Unit 5 Look into Science 课时 Lesson 30: Science Affects Us 课型 新授课 教学目标 1. 语言能力掌握单词:suggest, development, mobile phone, discovery接触单词:affect 短语:turn...over, push up, push down, in place 2. 学习能力(1) 掌握本课所学的单词和英语表达;(2) 能用英语描述实验过程;(3) 能描述科技的发展对我们日常生活的影响。3. 思维品质努力学习科学知识,让科学造福人类。 教学重点 掌握本课所学的单词和英语表达。 教学难点 能描述科技的发展对我们日常生活的影响。 教学准备 PPT 课件;本课节用到的音频。 教 学 过 程 Step 1 Warming upGet the class to describe how to do the experiment according to the pictures. Step 2 Presentation Teach the new words suggest and expressions turn...over, in place, push up, push down with the pictures by talking about the experiment.Teacher says: When we do the experiment, we should turn the jar upside down.That is, we should turn the jar over. After we take our hands off, the water in the jar can’t pour out. Why Because the air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. The higher air pressure outside the jar holds the cardboard in place. The experiment is very interesting. I suggest you try it, too. Step 3 Listening and answeringGet the class to listen to the first email and answer the questions.1.Who is the email to 2. Who is the email from Answers: 1. Wang Mei. 2. Jenny. Step 4 Reading 1. Get the class to read the first email and answer the questions. (1) When did they do the experiment (2) How many steps do they need to do the experiment (3) Why does the cardboard hold the water in the jar (4) What does Jenny think of science Answers: (1) This week. (2) Two. (3) The air pressure pushing up on the cardboard is higher than that of the water pushing down from inside the jar. The higher air pressure outside the jar holds the cardboard in place. (4) It’s interesting. 2. Get the class to read the first email and find the following expressions. Then translate them into Chinese.cover...with sth. 用某物盖住…… turn…over把……翻转 take...off把……拿开 air pressure气压 push up向上推 push down向下按 in place原地;在适当的位置 Step 5 Presentation Teach the new words affect, development, discovery, mobile phone with the pictures by talking about the mobile phone.Teacher says: Look! What’s this (It’s a mobile phone.) Can you imagine whatlife would be like without mobile phones (...) So, mobile phones affect our everyday life. Our life will be very different with the scientific development. Scientific discoveries are making our lives better and better. Do you agree with me Step 6 ExercisesFill in the blanks with the correct forms of the words in the box. (Let’s Do It! No. 2)1. Jenny _____ they use a stronger piece of cardboard for the experiment.2. The air pressure _____ the result of the experiment.3. The experiment led to a wonderful_____.4. What are your plans for the _____ of your company 5. They used a rock to hold the map in_____. Answers: 1. suggests/suggested 2. ... ...
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