例:1 I watching (watch) TV when he came in.
2 They were play (play) games at 5:00 p.m. yesterday.
答案:1 was watching 2 were playing
解析:现在进行时中“be+现在分词,缺一不可的规律也可应用于过去进行时。
三、对动词或动词词组提问时丢掉doing
例:We were flying kites at 5:00 p.m. yesterday. (对划线部分提问)
What were you at 5:00 p.m. yesterday?
答案:What were you doing at 5:00 p.m. yesterday?
解析:现在进行时中“What……doing……?句式同样适用于过去进行时。
四、易与现在进行时弄混
例:My mother is cooking (cook)when I got home.
答案:was cooking
解析:这两种时态的共同点是都表示动作正在进行,但现在进行时前提是现在,而过去进行时前提是过去,由when I got home可看出前提是过去。
五、易与一般过去时弄混
例:昨晚我在读一本故事书。
I read (read) a story book yesterday evening.
答案:was reading
解析:这两种时态的共同点是都用于表示过去发生的动作。但过去进行时强调动作正在进行,而一般过去时则表示过去某一时间所发生的动作或存在的状态,它表示的动作往往已经完成。“在说明正在进行,而“I read a story book yesterday evening.的意思是昨晚我读了一本故事书,言下之意已经读完了。故用过去进行时。
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