Unit 1 You Can Write Poetry
Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Unit 2 DNA
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16
Unit 3 Pardon Me!
Lesson 17
Lesson 18
Lesson 19
Lesson 20
Lesson 21
Lesson 22
Lesson 23
Lesson 24
Review of units 1-3
Unit 4 Work for Peace
Lesson 25
Lesson 26
Lesson 27
Lesson 28
Lesson 29
Lesson 30
Lesson 31
Lesson 32
Unit 5 Culture Shaptes US
Lesson 33
Lesson 34
Lesson 35
Lesson 36
Lesson 37
Lesson 38
Lesson 39
Lesson 40
Unit 6 Get Ready for Jobs
Lesson 41
Lesson 42
Lesson 43
Lesson 44
Lesson 45
Lesson 46
Lesson 47
Lesson 48
Review of units 4-6
听过集中训练