Section A: 1b Listen,look and number
Section A: 2a Listen and number the pictures
Section A: 2b Listen and match the problems
Section A: 2d Role-play the conversation
Section A: 3a Read the passage
Section B: 1b Listen and Check
Section B: 1c Listen and write
Section B: 2b Read and Underline
Unit 1音频打包(含单词)--点击下载：下载地址一。