【正文】
Step3 Consolidation and extension This activity provides oral practice using the target language. Invite a pair of students to read the sample conversation to the class. Write the sample conversation on the blackboard. Move around the classroom listening in on various pairs so as to check progress and help with pronunciation as needed. After students have had a chance to practice several exchanges, ask pairs to e to the front of the room and act out their conversations. Grammar Focus Invite a pair of students to say the questions and answers to the class. Step4 Summary 1. by 介詞,表示“通過?方法或途徑”的意思,譯成“靠、通過” by后面可以加名詞或動名詞短語 ,eg. ( 1) The house was destroyed by fire. 房屋被