1、结构： 否定结构：Sb+be(not) + doing 一般疑问句：将be动词提前 如： He is reading a new book. 否定句： Is he reading a book? He isnt reading a new book. 一般疑问句 现在进行时：现在进行时： is/are/am + doing The Past Continuous Tense (过去进行时过去进行时) 基本结构基本结构: was / were / doing + sb+ wasnt werent A:What were they doing last Sunday at 5pm? B: The
2、boys were playing basketball. The girl was reading a book. The man was talking with a girl happily. 过去进行时过去进行时 用法一：用法一： 表示表示过去过去某一时间点或某段时间内某一时间点或某段时间内正在正在进行的进行的 状态或动作。状态或动作。 I was reading a book at 5 p.m. yesterday. My mother was washing clothes at 9 last night. What was he doing all day last Sunday
3、? at 10 a.m. yesterday morning She was reading a book She was shopping. from 8 to 9 last night I was sleeping while Li Jie was getting ready to go out. 用法二：表示在过去的某个时间，前后两用法二：表示在过去的某个时间，前后两 个动作是同时进行的。个动作是同时进行的。 过去进行时常与过去进行时常与when, while连用，连用， 意思是意思是 当当之时之时。 while后面一般跟延续性动词，常后面一般跟延续性动词，常 用用进行时进行时 when
4、后面常用后面常用过去式过去式。 用法三：用法三： 描述一件事发生的背景；一个描述一件事发生的背景；一个长长 动作动作发生的时候，另一个发生的时候，另一个短动作短动作发生。发生。 My brother fell while he was riding his bicycle. It was raining when they left the station. 短短 短短 长长 长长 -What was Lilei drawing when the teacher came in? -He was drawing an elephant. -What were the twins drawing
5、 when the teacher came in? -They were drawing a car. While What were they doing yesterday afternoon? He was playing basketball while she was sleeping. A monkey was .while two cats were at 3 p.m. yesterday 1. She _ (read) a story-book at seven yesterday evening. was reading 2. _ he _ (study) English from 7 to 9 last night? 3.Jane _(wait) for me when I _(arrive). 4 My brother came into the bedroom while I _(dance). studying was waiting arrived was dancing Was 填入以下单词的正确形式填入以下单词的正确形式
