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关于何时使用be动词提问,何时使用助动词提问,可总结如下:
一、be动词提问的适用情况
主系表结构
当句子为“主系表”结构(即谓语为be动词,后接表语)时,需用be动词提问。例如:
- 原句:She is a teacher.
- 疑问句:Is she a teacher?
特殊时态
包括现在进行时、过去进行时、一般将来时及被动语态:
- 现在进行时:He is reading a book. → Are they reading a book?
- 一般将来时:She will call you tomorrow. → Will she call you tomorrow?
- 被动语态:The cake was eaten by the children. → Was the cake eaten by the children?
二、助动词提问的适用情况
实意动词谓语
当句子谓语为实意动词(如have, do, play等)时,需用助动词提问,且需将动词还原为原形。例如:
- 原句:He eats breakfast at 7 AM. → Does he eat breakfast at 7 AM?
- 原句:They played soccer last weekend. → Did they play soccer last weekend?
一般现在时
- 主语为第一/第二人称:I do my homework every day. → Do I do my homework every day?
- 主语为第三人称单数:He does his homework every day. → Does he do his homework every day?
一般过去时
- 用did提问:Did she call you last night?
一般将来时
- 用will或shall提问:Will she finish the project by Friday?
三、注意事项
be动词的特殊性
be动词(am/is/are/was/were)在构成进行时、被动语态及部分特殊句型时,需直接提前提问,无需借助其他助动词。- 避免混淆
助动词仅用于非be动词谓语,若句中已存在be动词,则无需再加助动词。
通过以上规则,可有效区分be动词和助动词在提问中的使用场景。