题目内容
7.We watched an interesting TV show last night.(改否定句)Wedidn'twatch an interesting TV show last night.
分析 我们昨晚看了一个有趣的电视节目.
我们昨晚没有看有趣的电视节目.
解答 答案:didn't watch.原句是一般过去时,watch是实意动词,故借助于did构成否定,后加原形watch,故答案是didn't watch.
点评 含有be动词,情态动词或者助动词have/has的句子转化成否定时在其后面加上not,一般实意动词的否定式,通常应根据不同时态和人称在实意动词之前加don't,doesn't,didn't等.
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