人教课标版英语必修四Unit1课件+录音 │ Discovering useful structures.ppt │ listenling.ppt │ using language reading.ppt │ Warming up and reading.ppt └─课本录音 listening task.mp3 Reading.mp3 using language-listening.mp3 using language-reading.mp3 workbook-listening text.mp3 workbook-reading task.mp3