初中英语句子种类讲解(PPT52张)
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初中英语语法-句子的种类按照英语句子的使用目的和用途,句子可分为四类:陈述句(Declarative Sentence)、疑问句(Interrogative Sentence)、祈使句(Imperative Sentence)和感叹句(Exclamatory Sentence)。
陈述句包括肯定陈述句和否定陈述句。
疑问句有一般疑问句、特殊疑问句、选择疑问句和反意疑问句。
图解语法1. 陈述句说明一个事实或陈述一个人的看法,陈述句包括肯定陈述句和否定陈述句特别提示:肯定陈述句改成否定句或一般疑问句时,如句中有already,some,something,somebody等词,须分别改成yet,any,anything,anybody等。
另外,也要注意,too改成either,both改成neither,all改成none等。
2. 疑问句3. 常用的特殊疑问句4. 特殊的反意疑问句①主句是祈使句时,“will you?”意为“请求”,“won’t you?”表示提醒对方注意。
例句:Look at the blackboard, will you / won’t you?Don’t be late again, will you?②感叹句后的反意疑问,用一般现在时态的否定形式例句:What fine weather, isn’t it?How beautifully she sings, doesn’t she?③陈述部分是“I am …”时,用“aren’t I?”而不用“am not I?”例句:I'm working now, aren’t I?④陈述部分主语是everything,nothing,anything或something 时,疑问句主语用it例句:Something is wrong with my radio, isn’t it?Nothing is difficult, is it?⑤陈述部分的主语是somebody, nobody, everybody, anybody, no one,none, neither 时,疑问句的主语用they例句:Everyone is here, aren’t they?No one knows about it, do they?⑥陈述部分的主语是:1) this或that时,问句的主语用it2) these或those时,问句主语用they3) there be句时,反意疑问句中用there例句:This is a plane, isn’t it?These are grapes, aren’t they?There was a hospital here, wasn’t there?⑦陈述部分的主语是one时,问句的主语可用one,也可用you (美语用he)例句:One should be ready to help others, shouldn’t one?⑧陈述句中有few, seldom, never hardly,not,rarely,no,nobody,too…to等时,疑问句部分用肯定结构;如由前后缀构成否定词,疑问句部分仍用否定结构例句:He is never late for school, is he?You got nothing from him, did you?It is useless, isn’t it?⑨陈述部分主语是从句、不定式(短语)、动词-ing形式时,疑问句的主语用it例句:What you need is more important, isn’t it?⑩陈述部分由think, believe, suppose, imagine等引导的宾语从句:1) 主语是第一人称时,问句与从句的主谓语一致2) 主语是其他人称,问句与主句的主谓语一致例句:I think he will come, won’t he?I don’t think he can pass the exam, can he?He believed you had seen her before, didn’t he?? have是实义动词时,疑问句用助动词do,does,did;have 是助动词,则不然例如:They had a meeting just now, didn’t they?She’s been to many places of interest, hasn’t she?? 陈述部分有have /has /had to 时,疑问句要用助动词的否定形式例句:You have to water the vegetables now, don’t you?? 陈述部分有had better时,疑问句中用hadn’t刘局:We had better go to school at once, hadn’t we?? 陈述部分有must:1) 作“一定;必须”解释时,疑问句用mustn’t或needn’t;2) 表示推测,作“一定是;必定”解释时,疑问句需根据其后的动词原形选用相应的形式;3) 对过去动作推测时,问句的助动词用did或have;4) 对过去的状态推测时,问句的be用was例句:He must work hard at physics, mustn’t he?You must go to Guangzhou, needn’t you?You mustn’t smoke here, must you?Tom must be at home, isn’t he?She must have finished her work, hasn’t/didn’t she?He must have been a policeman, wasn’t he?? 陈述部分有ought to,used to,疑问句要用 shouldn’t,usedn’t / didn’t例句:Jill used to be a teacher, usedn’t / didn’t she?? 陈述句部分是复合句时,疑问句的主语和助动词要与主句一致例句:He was reading when the teacher came in, wasn’t he?特别提示:反意疑问句是“否定陈述句+肯定问句”时,如回答内容是肯定的,用“Yes+肯定结构”,反之,用“No+否定结构”。