题目内容
10.The old man does morning exercise every day.(改为否定句)The old mandoesn't do morning exercise every day.
分析 老人每天都做晨练.
老人不是每天都做晨练.
解答 答案:doesn't do.原句是一般现在时的肯定句,does是动词do"做"的三单形式,主语是the old man是三单,故借助于does来构成否定,后加not缩写成doesn‘t,后加动词原形do,故答案是doesn't do.
点评 本题考查肯定句变否定句,做此类题时,需在句子相对应的助动词后加not,若动词为三单或过去时,动词需还原成原形.
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