摘要:行为动词的变化.否定句:主语+ don't +动词原形.如:I don't like bread. 当主语为第三人称单数时.要用doesn't构成否定句.如:He doesn't often play. 一般疑问句:Do +主语+动词原形+其它. 如:- Do you often play football? - Yes, I do. / No, I don't. 当主语为第三人称单数时.要用does构成一般疑问句. 如:- Does she go to work by bike? - Yes, she does. / No, she doesn't. 特殊疑问句:疑问词+一般疑问句.如:How does your father go to work? 一般现在时用法专练:

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