A 形式
used是没有现在式的不完全变化动词的过去式。
肯定式:used用于所有人称
否定式:used not/usednt用于所有人称
疑问式:used you/he/they?等
否定疑问式:used you not?/usednt you?等
其否定式和疑问式也可以用did来构成:
didnt use to did you use to? didnt you use to?
这是一种较不正规的形式,在口语中用得相当普遍。
used后面接带to的不定式,为提醒学生这一点,常常称之为used to(就如表示义务的have被称为have to)。
B 用法
used to可用于以下场合:
1 表示已经中断的一个习惯,或者过去与现在相反的状况:
I used to smoke cigarettes;now I smoke a pipe.
我以前抽烟卷,现在我抽烟斗。
He used to drink beer;now he drinks wine.
他以前喝啤酒,现在他喝葡萄酒。
She usednt to like Tom but she quite likes him now.
她以前不喜欢汤姆,可她现在很喜欢他。
She used to dislike Tom but she quite likes him now.(译文同上。)
used通常不重读,但是如果说话人想强调现在与过去的对比,可以加以重读。
2 表示过去的例行活动或方式。这样使用时,不是将过去与现在对比。仅仅描述某人在某一定时期的例行活动。这时常常描述一连串的动作。这里used to可以由would取代(但would不能代替如在上面1中所提到的、表示已经中断的习惯的usedto)。这种情况下的used to总是不重读的。
Tom and Ann were a young married couple.Every morning Tom used to kiss Ann and set off for work.Ann used to stand at the window and wave goodbye.In the evening she used to welcome him home and ask him to tell her about his day.
汤姆和安是一对年轻的夫妇。每天早上汤姆都要亲吻安,然后再去上班。安总是要站在窗前挥手送别。傍晚的时候,安总要迎接汤姆回家并要他告诉她一天的情况。
如果用would就会写成:
Every morning Tom would kiss Ann and set off for work. Ann would stand at the window and wave goodbye
每天早上汤姆总是亲吻了安,然后再去上班。安总是要站在窗前挥手送别
注意:used没有现在式。因此要表示现在的习惯或例行活动时,我们必须用所需动词的现在式。
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