... p.45(workbook) - Prepare Speak. Period 38: Unit 6: The environment Lesson 2: Speaking Date: Jan.19th, 06 A. Objectives: - By the end of the lesson, Ss will be able to persuade their friends to ... Because plastic bags are very hard to dissolve, they will cause pollution. 2. While- speaking : (P. 49) 3. Post- speaking : • Pre- teach vocabulary - T elicits vocabulary from Ss +explanation +picture ... - T elicits the new target language from Ss. - T asks Ss to look at exercise in their books (P. 49) and models. - T asks Ss to practise speaking ( Ss work in pairs ) - T corrects Ss' mistakes....