[部优] Lesson 30 Science Affects Us_第一课时
[部优] Lesson 21 The Fable of the Woodcutter_第一课时
[部优] Lesson 23 The Giant ( II )_第一课时
[部优] Lesson 58 Ms. Liu’s Speech_第一课时
[部优] Lesson 2 Many Faces, One Picture_第一课时
[部优] Lesson 46 Getting Ready for Summer Holiday!_第一课时
[部优] Lesson 34 The Fisherman and the Goldfish ( II_第一课时
[部优] Lesson 25 I Want to Be a Teacher!_第一课时
[部优] Lesson 38 Hobbies Are Fun!_第一课时
[部优] Lesson 34 Modern Olympics_第一课时
[部优] Lesson 46 Protect Our Environment_第一课时
[部优] Lesson 47 Connected to Nature_第一课时
[部优] Lesson 44 Environment Clubs_第一课时
[部优] Lesson 34 Modern Olympics_第一课时
[部优] Lesson 23 The Internet — Good or Bad_第一课时
[部优] Lesson 20 A Computer Helps!_第一课时
[部优] Lesson 13 Danny’s Big Scare_第一课时
[部优] Lesson 10 Make Your Garden Grow!_第一课时
[部优] Lesson 8 Why Are Plants Important_第一课时
[部优] Lesson 47 I Made It!_第一课时
