What?were?Ben,?Jake,?Lucy?and?Lily?doing?on?December?31st,?2011??They?(1)_____(prepare)?their?party.?Lucy?(2)_____(buy)?crisps.?Lily?(3)_____(organize)?the?music.?Ben?and?Jake?(4)_____(fetch)?chairs?and?tables.?(5)_____their?parents _____(help)?them??No,?they?(6)_____(not?help)?them?because?they?(7)_____(sit)?on?the?plane?on?their?way?to?Australia.?
【指點迷津】
一般說來,要表示過去某個時刻或某一時段正在進行的動作,我們常用過去進行時。常和過去進行時連用的時間狀語有:then,at this/that time yesterday, at … last night, the whole morning, from … to … last night等。
例如:
I was watching TV at this time yesterday. 昨天這個時候我在看電視。
They were doing their homework the whole morning. 整個上午他們都在做作業(yè)。
可以看出,過去進行時由“was/were +?動詞-ing”構成,與現(xiàn)在進行時結構相似,只是現(xiàn)在進行時的am/is/are變成了was/were。由此可以推斷,過去進行時的句式變化也應該與現(xiàn)在進行時的一樣。
例如:
She?was?having?a?meeting?at?that?time.?
→?She?was?not?(wasn’t)?having?a?meeting?at?that?time.?
→?Was?she?having?a?meeting?at?that?time??(Yes,?she?was./No,?she?wasn’t.)
那么,如何區(qū)別并準確使用過去進行時和一般過去時呢?試比較:
I was typing a letter at seven last night. 昨晚7點我在打一封信。(可能沒打完)?
I typed a letter last night. 我昨晚打了一封信。(已經打完)?
通過以上兩個例句可以看出,這兩種時態(tài)雖然都表示過去發(fā)生的動作,但過去進行時表示在過去某一特定的時間點或時間段正在進行的動作,而一般過去時表示在過去時間完成了的動作。
Key:
1.?were?preparing???2.?was?buying???????3.?was?organizing?
4.?were?fetching?????5.?Were;?helping????6.?weren’t?helping?
7.?were?sitting
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