The Elementary edition brought right up-to-date, with new topics and new features. The Workbook, Teacher's Book, Teacher's Resource Book, Audio CD, and CD-ROM have all been revised.
Unit 1 am/is/are
Unit 2 Questions and negatives
Unit 3 Present Simple 1
Unit 4 Present Simple 2
Unit 5 there is/are, some/any-prepositions
Unit 6 can/can't
Unit 7 Past Simple 1
Unit 8 Past Simple 2
Unit 9 Count and uncount nouns
Unit 10 Comparatives
, etc.