题目内容
12.They were at home last night.(改为一般疑问句)Were theyat home last night?
分析 昨天晚上他们在家.昨天晚上他们在家吗?
解答 答案:Were,they 分析原句,是一个含有be动词were的一般过去式的陈述句,主语是they,变一般疑问句时,将be动词were提到句首大写,人称they不变,从而得出答案.
点评 一般疑问句有两个家族.
第一家族为含be动词或情态动词的一般疑问句,其结构为:
be+主语+其它部分?
情态动词+主语+动词原形+其它部分?
肯定回答用"Yes,主语+be\情态动词.",否定回答用"No,主语+be\情态动词+not.".be或情态动词和not可用缩写形式,主要有isn't,aren't,wasn't,weren't,can't,mustn't,needn't等.
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