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作者：陈忠富 同学们,大家学习了很多的英语句型,可是,你们知道如何将肯定句变成一般疑问句吗?本期英语博士将给我们介绍一般疑问句的用法。 [焦点一] 哪些词可以直接提到主语的前面? [英语博士] 将肯定句变成一般疑问句时, 如果句子中有be(am, is, are, was, were), 情态动词(can, may, must), 助动词(will, shall, have, has)以及have, has表示"有"等词时,就要将它们直接提到主语的前面。如: He was there yesterday. →Was he there yesterday? I can swim. →Can you swim? He will be back in an hour. →Will he be back in an hour? She has worked here for a year. →Has she worked here for a year? [焦点二] 何时使用助动词? [英语博士] 在把含有实义动词的一般现在时和一般过去时的肯定句变成一般疑问句时,要在主语的前面加助动词do, does 或did(根据原句里的时态而定,过去时用Did, 一般现在时时,第三人称单数用does,第一、二人称和第三人称复数用do), 原来的实义动词要恢复原形。结构:助动词(Do/ Does/ Did)+主语+实义动词原形+其它?简略答语为:Yes, 主语+do/does/did. 或No, 主语+don't/ doesn't / didn't. 如: He watches TV every day. →Does he watch TV every day? Yes, he does. /No, he doesn't. I went to the park last week. →Did you go to the park last week? Yes, I did. /No, I didn't. [焦点三] 一般疑问句有哪些特例? [英语博士] 复合句变成一般疑问句时,通常只变主句,从句不变。如: I hear that he will come back the day after tomorrow. →Do you hear that he will come back the day after tomorrow? 相关链接：教学论文
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