unit 3 Sports and Fitness Discovering useful structures 课件-2023-2024学年高中英语人教版（2019）必修第一册

Unit 3 Sports and Fitness Tag questions 人教版（2019） 必修一 反意疑问句是由陈述句和附在其后的附加疑问句组成。 其中附加疑问句是对陈述句所说的事实或观点提出疑问，起证实作用。 概念 反义疑问句 陈述句 + 附加疑问句？ 结构 反义疑问句 情态动词/助动词/be动词 主语相应的代词 It is not a real sport, is it? 附加疑问句动词：情态动词，助动词，(系动词中的) be 动词 1. 情态动词：表达情感 will, may, can, must... 2. 助动词：构成时态与语态 1) do（does, did）任何实义动词的助动词都是do, does, did. eg. She sang a beautiful song, _______? 2) have (has, had) eg. She has already finished her homework, _________? 3) be (am, is, are, was, were,) 3. be动词 didn’t she hasn’t she 基本原则 反义疑问句 反义疑问句 1. It is not a real sport, is it? 2. It is a beautiful day, isn’t it? 基本原则：前肯后否，前否后肯 结构 反义疑问句 陈述句 + 附加疑问句？ He doesn't much care for clothes, ______ ？ Your daughter visited Emperor Qin's terracotta warriors last weekend, ______ ？ Dogs can run faster than hens, ______ ？ They weren't doing their homework this time yesterday, ______ ？ All the students have finished their homework, _______ ? 情态动词/助动词/be动词 主语相应的代词 does he didn’t she can’t they were they haven’t they 1. 肯定陈述句+否定疑问部分 Eg. You have already got our invitation,____________? haven’t you 2. 否定陈述句+肯定疑问部分 Eg. You won’t be away for long,____________? will you 1)  陈述部分含有seldom, hardly, never, few, nothing等否定词 其疑问部分要用肯定式。 Eg. She said nothing,____________? did she Eg. He has few friends here, _______? does he 2) 若陈述部分含有带否定前缀的词，疑问部分仍用否定式 It is unfair,  ________ ? isn’t it You dislike singing,  _________ ? don’t you 3. 祈使句+疑问部分 Have another cup of coffee,  _________ ? will you Don’t close the door,  _________ ? will you 动词原形开头，let’s和let us 只有let’s 用shall we, 其他祈使句用will you Let’s go to the museum,____________? shall we Let us wait in the reading room,____________? will you 4. 感叹句+疑问部分， ben’t + 主语对应的代词 Eg. What a clever boy, isn’t he? Eg. What beautiful flowers, _________? aren’t they Eg. What a clever girl, isn’t ______? she Eg. What a interesting book, isn’t______ ? it 感叹句+疑问部分，单数用isn’t he/she/it; 复数用aren’t they 5. There be+疑问部分 Eg. There is a cat under the chair,____________? isn’t