Unit 2 There were few doctors, so he had to work very hardon his own.Ⅰ Teaching modelListening and speakingⅡ Teaching methodCommunicative approachⅢ Teaching aims:从白求恩的阅读材料中学习对英雄人物的写作Key vocabulary:Canadian,operation, sick, soldier, die for, wounded, war, realize, care, ta...