Unit 1 Looking forwards Using language 课件-2021-2022学年高中英语外研版（2019）选择性必修第四册

Unit 1 Looking forwards Section B Using language MENU Leading-in Part 1 Part 2 Part 3 While-class After-class Part.1 Leading-in Leading in 诵读下列例句并感知画线部分的共性 1．I have already finished all the work. 2．By nine o'clock last night, we had got zoo letters. 3．They worked together in the 1990s, and have kept in contact ever since. 4．I had been at the bus stop for 20 minutes when a bus finally came. 5．I said I would arrange everything. 6．He has written a letter. 7．He has been writing a letter. 8．I was going to run this morning, but overslept. Leading in 9．She has been playing tennis since she was eight. 10．I have lived in this city all my life. 11．They had wanted to help but could not get there in time. 12．No sooner had we arrived than it started to rain. 13．He was writing an essay this time yesterday. 14．I will be visiting my brother this afternoon. 15．I was watching TV when she entered. 16．The students will be planting trees at 8 o'clock tomorrow. Leading in [共性呈现] 1．动作发生的时间是由动词的变化来体现的，画线部分均为