Unit 14 Lets help the old.教学目的和要求Teaching aims and demands 通过学习本单元,使学生逐步培养扶老携幼的意识 学习和掌握一定数量的动词短语词组 继续学习字母组合th 的读音交际用语Expressions in communication What is he/she doing? He/she is mopping the floor. Here we are. Would you like to listen to my story? Yes, tha