8
9
10
三、long conversation
四、passage
五、radio program
Homework
Task1
Task2
Task3
Unit6 Defending ourselves against disasters
一、warming up
二、short conversations 1
2
3
4
5
6
7
8
8
9
10
三、long conversation
四、passage
五、radio program
Homework
Task1
Task2
Task3
Unit6 Defending ourselves against disasters
一、warming up
二、short conversations 1
2
3
4
5
6
7
8