Unit 3 Sports and fitness Grammar 语 境 自 主 领 悟 先观察原句 后自主感悟 1.Wonderful gym,isn't it? 2.This isn't your first time here,is it? 3.You come here often,don't you? 4.But it won't make me too tired,will it? 5.Come along and join us,will you? 附加疑问句,又称反意疑问句,主要用于口语,其作用是说话人向对方验证自己的陈述或者判断,也可以用祈使句表示请求或者建议,在句子结构上前半部分为陈述句,后半部分是前面部分的简短问句,如果前半部分为肯定句,后半句的简短问句则为否定式;如果前半部分为否定句,后面简短问句则为肯定式。另外如果前半部分句子的主语是名词,在反意疑问句中要改为代词。 一、附加疑问句的组成 附加疑问句包括陈述部分和附加疑问部分。附加疑问部分一般由助动词、be动词或情态动词和表示主语的代词构成。 组成 例句 肯定式陈述部分+否定附加疑问部分 否定式陈述部分+肯定附加疑问部分 You often play badminton,don't you? You're going to the gym with me,aren't you? It's not a real sport,is it? They can't finish it by Friday,can they? 二、反意疑问句的几种特殊句型 (一)陈述部分含有must的反意疑问句 当must作“必须”讲时,其反意疑问部分用needn't;当含有mustn't(不允许、禁止)时,其反意疑问部分用must/may。如: You must go now,needn't you? 你现在必须走,是吗? You mustn't smoke here,must/may you? 你不可以在此吸烟,行吗? 当must/may(might)表示推测,即must作“一定,准时”讲,may/might作“可能”讲时,可首先将句子改变“I am sure/guess that从句”,反意疑问部分的动词形式根据be sure/guess后的宾语从句的谓语动词形式确定。如: 1.You must/may(might)be hungry now, ?→I am sure/guess that you are hungry now,aren't you?→You must/may (might)be hungry now,aren't you? 你现在一定/可能饿了,是吗? 2.You must have heard about it, ?→I am sure that you have heard about it,haven't you?→You must have heard about it,haven't you? 你一定听说过这事了,是吗? 3.You must have watched that football match last night,