Unit 4 Then and now Part A Let’s learn 全英教案

Unit 4 Then and now Part B Let’s learn 教案

Unit 4 Then and now Part B Let’s talk 教案

Unit 4 Then and now Part B Let’s learn教案（表格式）

Unit 4 Then and now A Let’s learn 教案

Unit 4 Then and now Part B Let’s learn 教案

Unit 4 Then and now Part A Let’s talk 教案