北京KET語法點08期:過去進行體Past continuous
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過去進行體是由
助動詞be的過去時形式(was,were)
+ -ing分詞(即動詞的ing形式)構(gòu)成
過去進行體和現(xiàn)在進行體的用法有不少相似之處
只是時間向過去推移而已
⑴ 過去進行體的肯定形式和否定形式
而進行時最重要的是
動詞的ing形式變化
而這個變化是有規(guī)律的
⑵ 過去進行體的疑問形式
直接將be的過去時形式(was,were)放在首位
⑶ 過去進行體的肯定回答和否定回答
⑷過去進行體的用法
①to talk about something happening over a period of time in the past.
例句:We were watching a film at 8 o'clock last night.
②to talk about two things happening at the same time:
例句:They were watching the film while I was doing my homework.
③with the past simple to talk about one thing happening in the middle of another.
例句:When I left home,my brother was eating his breakfast.
While I was walking into town,it started to rain.
④We use while to talk about two continuous actions.
例句:I was doing my homework while my parents were watching TV.
⑤We use when to talk about a point of time.
例句:My parents were watching TV when I got home.
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