[部优] Lesson 16 An Email Is Fast_第一课时
[部优] Lesson 5 In the Living Room
[部优] Lesson 18 Little Zeke Sends an Email
[部优] Lesson 17 What Do You Like to Do_第一课时
[部优] Lesson 10 Seasons and Weather_第一课时
[部优] Lesson 9 Where Do They Live_第一课时
[部优] Lesson 19 Let’s Go to the Park!_第一课时
[部优] Lesson 11 An Old Man and a Wolf_第一课时
[部优] Lesson 14 Li Ming’s Summer Holiday_第一课时
[部优] Lesson 13 Let’s Buy Postcards!_第一课时
[部优] Lesson 9 The Palace Museum_第一课时
[部优] Lesson 16 An Email Is Fast_第一课时