第2级目录:
Unit 01 Short Vowel a ap am
Unit 02 Short Vowel a an at ag
Unit 03 Short Vowel e en et
Unit 04 Short Vowel e ell ed eg
Unit 05 Short Vowel i ig in
Review 1 Unit 01-05
Review Story 1
Unit 06 Short Vowel i it ip ix
Unit 07 Short Vowel o og op
Unit 08 Short Vowel o ox ot od
Unit 09 Short Vowel u un ug
Unit 10 Short Vowel u ut ub ud
Review 2 Unit 06-10
Review Story 2
第2级目录:
Unit 01 Short Vowel a ap am
Unit 02 Short Vowel a an at ag
Unit 03 Short Vowel e en et
Unit 04 Short Vowel e ell ed eg
Unit 05 Short Vowel i ig in
Review 1 Unit 01-05
Review Story 1
Unit 06 Short Vowel i it ip ix
Unit 07 Short Vowel o og op
Unit 08 Short Vowel o ox ot od
Unit 09 Short Vowel u un ug
Unit 10 Short Vowel u ut ub ud
Review 2 Unit 06-10
Review Story 2