北师大版高中英语unit 17 lesson 1 grammar

1、课时安排: Grammar 1 读课文句子观察发现 2 看图片进行语境操练 3 总结 4 难点分析 5 操练 6 提升 7 拓展训练,Past Perfect Continuous,过去完成进行时,观察发现：,1. This afternoon, I was in the town center, where I had been doing some shopping. 2. One afternoon, hundreds of unlucky passengers who had been expecting to board a flight to New York were told

2、it had been cancelled.,总结,had been doing,意义：,Before she was rescued from the ruins, the soldiers had been searching for two hours.,I had been waiting for two hours when they announced that the tickets were sold out.,结构：,用于描述过去某一动作之前一直在 进行或反复的动作。 例：,money,语境练习,She realised that she didnt have any mon

3、ey left.,She had been doing some shopping.,Do you know who I am?,Grammar,He pushed his way to the front.,He had been waiting in line for some time.,Practice,She was scared.,watch a thriller,She was scared because she had been watching a thriller on TV.,. .,Example,Practice,He was laid off.,always co

4、me to work late,He was laid off because he had always been coming to work late.,过去完成时态含义及操练,She was upset because she had been waiting for her boyfriend for half an hour. 表持续,表反复,He was laid off because he had always been coming to work late.,还在过程中没有结束,They had been doing the thorough cleaning when

5、I came to see them.,过去完成进行时表示动作_开始，_这一时间。过去完成进行时的构成为“_ ”。和过去完成时一样，过去完成进行时也必须以_为前提,难点分析,在过去的某一时间之前,一直延续到,had been + 现在分词,某一特定的过去时间,他去上海之前，一直住在这里。,He had been living here before he went to Shanghai.,使用过去完成进行时时，应注意和其它时态的区别： 1. 过去完成进行时与过去完成时 过去完成进行时强调动作在过去某一特定时间之前开始，到这一时间_；而过去完成时则强调动作在过去某一动作或时间之前_。,仍在进行

6、,已经完成,她叫我进去之前我已经在房间里等了半个小时。（一直在等） 我们来之前他已经吃过早餐了。（动作已经结束）,I had been waiting in the room for half an hour before she called me in.,He had already had the breakfast before we came.,2. 过去完成进行时与过去进行时 过去完成进行时强调动作在过去某一时刻之前_；而过去进行时强调的是在过去某一时刻_.,一直在持续,正在进行,昨天晚上铃响之前，我一直在读一本小说。（一直在读）,昨天晚上铃响时，我正在读一本小说。（当时正在读）,

7、Last night I had been reading a novel when the bell rang.,Last night I was reading a novel when the bell rang.,操练 2.She was very tired after she had been working for hours without a break. 3.Their clothes were muddy because they had been playing football. 4.She was fired because hadnt been coming to

8、 work on time.,5.She was very angry because she had been waiting her boyfriend for half an hour. 6.His ear ached because she had been talking on the phone for hours. 7.He was messy because he had been repairing his car all afternoon.,8. She was very scared because she had been watching a thriller on

9、 TV.,1. Was the driving pleasant when you vacationed in Mexico last summer? No, it _ for four days when we arrived, so the roads were very muddy. A. was raining B. would be raining C. had been raining D. have rained,提高升华,2. I have got a headache. No wonder. You _ in front of that computer too long.

10、A. had worked B. are working C. have been working D. worked,3. I saw Jane and her boyfriend in the park at eight yesterday evening. Impossible. She _ TV with me in my home then. A. watched B. had watched C. would watch D. was watching,4. They became friends again that day. Until then, they _ to each other for nearly two years. A. didnt speak B. hadnt spoken C. havent spoken D. havent been speaking,5. Did you see a man in black pass by j