about history and people from stamps. True False True False True False 录音 1a-P57 True False 集邮册多漂亮的邮票啊 Learn …… from …..从…中学到…. 我过去常常收集棒球卡,但现在我对篮球感兴趣。 used to do sth 过去常常做某事。其否定式为 didn ’ t use to 或 used not to 。过去不常…? 1 used to ?是“过去常常,曾经”的意思,表示现在已不是那样了,后接动词原形。? e.g. My father used to be a farmer, but now he is a worker. ?我父亲过去是一位农民,但现在他是一名工人。?其否定式为 didn ’ t use to 或 used not to 。? He used to swim. ?他过去常游泳。? He didn ’ t use to swim.=He usedn ’ t to swim. ?他过去不常游泳。? e.g. He didn ’ t use to drink beer. = He usedn ’t to drink beer. ?过去他不常喝酒。?其疑问式既可用助动词 did, 也可用 used 直接提问? Did he use to swim?= Used he to swim? 他过去常游泳吗? ? e.g. Did he use to live in Beijing?=Used he to live in Beijing? ?过去他常住在北京吗? ?肯定回答 Yes, he did. / Yes, he used. ?否定回答: No, he didn ’ t./ No, he usedn ’t.
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