关注公众号快速搜索电子课本

Unit 7 Be a Better Learner!
Unit 8 Every Coin Counts!
Unit 9 Forces of Nature
Unit 10 World in the Cloud
Unit 11 Fantastic Chinese Culture
Unit 12 The Wonderland of Literature
Appendices
Notes to the Text
Grammar
Tapescripts
Words in Each Unit
Vocabulary
Useful Expressions in Each Unit
Attached Word List
English Names
Names of Places
Irregular Verbs