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Lesson 30 Science Affects Us 导学案
知识 目标 必 会 内 容 单词： affect,suggest,development,mobile phone,discovery 重点词组： turn…over,push up,push down,in place 重点句式： 1) First, get a jar full of water and a piece of cardboard. 2) The higher air pressure outside the jar holds the cardboard in place. 3) The ex...