题目内容
5.He does his homework after school.(改为否定句)Hedoesn't do his homework after school.
分析 --他放学后做他的作业.
--他放学后不做他的作业.
解答 答案:doesn't do.考查否定句.根据does第三人称单数,可知是一般现在时态,does是实义动词,主语是he第三人称单数,变否定句在实义动词前用doesn't,实义动词does变原形do.答案是doesn't do.
点评 考查否定句.通常是在be动词,情态动词后加not.一般现在时态,主语不是第三人称单数用don't,主语是第三人称单数用doesn't.一般过去时态用didn't.还有其它用法需要牢记.
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