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They are watching TV now.
现在进行时
Present Progressive Tense
定义：表示过去某个时刻正在进行的动作。
基本结构: be（was﹨were） +doing
e.g. He was sleeping in bed at 8 yesterday morning.
They are cleaning at that time.
过去进行时
Past Progressive Tense
现在进行时：now, look, listen, at 10…
过去进行时： at 8 yesterday morning, at this time last week, at that time, at that moment …
时间状语
肯定句式：
主语+was/were+动词-ing (+其他).
e.g. I was swimming at that time.
否定句式:
主语+wasn’t/weren’t +动词-ing (+其他).?
e.g. They weren’t cooking at that moment.
Pairwork
一般疑问句式：
e.g. —Was Ben reading at the time of the
rainstorm?
—Yes, he was. / No, he wasn’t.
Was / Were+主语+动词-ing (+其他)?
肯定回答为：Yes,?主语+ was / were.；
否定回答为：No,?主语+ wasn’t / weren’t.?
一般疑问句式：
1. Jim _____________ (sleep) when I came in.
2.They _____________ (watch) TV at 8:00
yesterday evening.