-
4.1 warming up and words in Text A
-
4.2 text A paras. 1-3
-
4.3 text A paras. 4-6
-
4.4 text A paras.7-8 and task 1, 2
-
4.5 text B paras. 1-4
-
4.6 text B para. 5 and task 1, 2
-
4.7 listening and speaking
-
4.7.1 Listening
-
4.7.2 Speaking
-
4.8 writing and mini-project
-
4.9 Language Lab
-
4.10 self-study room: learning to read
-
4.11 第四单元电子版教材