Unit2语法专项不定代词地点时间副词感叹句课件-仁爱科普英语八年级上册

教学课件仁爱英语八年级上册

Unit2语法专项——不定代词&地点/时间副词&感叹句

全解精讲+分层练习学习目标掌握some/any/no/every构成的不定代词用法会用同类结构的地点/时间副词区分并熟练运用两种感叹句结构规避语法易错点，规范句式表达能在语境中灵活运用所学语法一、不定代词&地点/时间副词-概念由some/any/no/every+后缀构成核心：表达不确定的人、物、地点、时间分为三大类：指人、指物、表地点/时间句中可作主语、宾语、表语等成分地点/时间类为副词，无单复数变化不定代词-指人/指物分类表类别构成组合核心含义肯定句常用否定/疑问句常用指人some/any/every/no+one/body某人/任何人/每人/没人someone/somebodyanyone/anybody指物some/any/every/no+thing某物/任何物/一切/没东西somethinganythingone/body指人时用法完全互换均为单数概念，作主语接单数动词some-系列核心用法主要用于肯定句，表不确定的人/物/地点例句：Ihavesomethingnewtoshowyou.特殊：用于希望得肯定回答的疑问句此类问句多由Would/Could/Can引导例句：Couldyougetmesomethingtodrink?any-系列核心用法主要用于否定句/一般疑问句，表“任何”例句：Thereisn’tanyoneinthelibrary.特殊：用于肯定句，表“任何一个/事物”肯定句中表强调，后接单数动词例句：Anythingispossibleifyoutryhard.no-系列核心用法本身自带否定含义，用于肯定句表否定无需再加not，避免否定叠加核心等价关系：nobody=notanybodynothing=notanything，nowhere=notanywhere作主语时，谓语动词用单数形式every-系列核心用法表“全部、每一”，整体指代所有人/物作主语时，谓语动词一律用单数不可与not连用表部分否定部分否定需用notall替代例句：Notallthestudentslikemath.地点副词-核心用法由some/any/no/every+where构成somewhere/anywhere/everywhere/nowhere用法与对应不定代词完全一致地点副词后不可接介词例句：gosomewherewarm而非gotosomewherewarm时间副词-核心用法由some/any/no/every+time构成sometime/anytime/everytime/notime用法与对应不定代词保持一致表不确定的某个/任何/每次/没有时间可在句中作时间状语，位置灵活不定代词&副词-易错点1主谓一致everyone/nobody/someone等作主语无论语义上指代多少，均为单数概念谓语动词必须使用第三人称单数形式错误：Everyonelikemusic.正确：Everyonelikesmusic.不定代词&副词-易错点2否定叠加no-系列词汇本身含完整否定含义句中不能再出现not等否定词错误：Notnobodyisintheroom.正确：Nobodyisintheroom.牢记：no-=notany-，避免重复否定不定代词&副词-易错点3词性搭配不定代词、地点/时间副词后均无介词接介词是此类语法的高频错误错误：lookforsomethinginthebag（此句正确，错误示例：gotoanywhere）正确：goanywhere/findsomethinghere不定代词基础小练用some/any/no/every+one/thing/where填空1.Ihave____________importanttosharewithyou.2.Isthere____________inthemeetingroomnow?3.____________inourschoolknowsthiskindteacher.4.Thereis____________todrink.Let’sbuysomewater.5.Sheplanstogo____________quiettorelaxonweekends.somethinganyoneEveryonenothingsomewhere不定代词提升小练按要求改写句子1.Someoneiscallingyoufromtheoffice.（改为否定句）2.Thereissomethingspecialinthebox.（改为一般疑问句）3.Everyonelikesthisinterestingstory.（部分否定）4.Ihavesomethingtodothisevening.（否定句）Nobodyiscallingyoufromtheoffice.Isthereanythingspecialinthebox?Noteveryonelikesthisinterestingstory.Idon’thaveanythingtodothisevening.二、感叹句-概念与核心区别用于表达强烈情感：惊喜、赞叹、惋惜等主要分为What和How引导两种结构核心区别：修饰的句子成分不同What：修饰名词或名词短语How：修饰形容词、副词，少数情况修饰动词What引导感叹句-结构1修饰单数可数名词结构：What+a/an+形容词+单数可数名词(+主+谓)!a/an根据形容词首字母音素判断元音音素用an，辅音音素用a例句：Whataninterestingbook(itis)!What引导感叹句-结构2修饰复数可数名词/不可数名词结构：What+形容词+复名/不可数名词(+主+谓)!复数名词和不可数名词前不加a/an这是高频易错点，需重点牢记例句：Whatbeautifulflowers(theyare)!How引导感叹句-结构1修饰形容词结构：How+形容词(+主语+谓语)!形容词后接的主谓语可省略口语中省略情况更常见例句：Howhappy(theyare)!/Howcolditis!How引导感叹句-结构2修饰副词结构：How+副词(+主语+谓语)!副词多用来修饰句中的动作主谓语同样可根据语境省略例句：Howwellshesings!/Howfastheruns!感叹句-核心规则What后必接名词，How后必接形/副单数可数名词前a/an不可缺不可数/复数名词前无a/an主谓语可省略，中心词明确即可句末一律使用感叹号!感叹句-快速判断技巧看引导词后紧接的成分接名词/名词短语→用What接形容词/副词→用How无需分析整句，只需看紧邻成分例：_______talltheboyis!→

（紧接形容词）How感叹句-易错点1不可数名词陷阱weather/music/water等为不可数名词前绝对不能加a/an错误：Whatawonderfulmusic!正确：Whatwonderfulmusic!牢记常见不可数名词，避免误用感叹句-易错点2形/副区分How修饰副词时，副词表动作状态修饰形容词时，形容词表人/物特征错误：Howhappyheplays!正确：Howhappilyheplays!happy是形容词，happily是副词感叹句-易错点3a/an的判断根据形容词首字母的音素判断非根据字母本身，这是核心要点元音音素（a/e/i/o/u开头）→an辅音音素→a例句：Whatausefulbook!/Whatanhonestboy!感叹句基础小练用What/How填空1.__________acutecatitis!2.__________fastthestudentsrun!3.__________deliciousthefoodtastes!4.__________beautifulpicturestheydraw!5.__________badweatheritistoday!WhatHowHowWhatWhat感叹句提升小练将下列句子改写为感叹句1.Thegirlisverylovely.2.Heswimsverywell.3.Itisawonderfultrip.4.Thebreadisverydelicious.5.Theyareverycleverchildren.Howlovelythegirlis!/Whatalovelygirlsheis!Howwellheswims!Whatawonderfultripitis!/Howwonderfulthetripis!Howdeliciousthebreadis!Whatcleverchildrentheyare!/Howcleverthechildrenare!语法综合小练-完形填空用适当的不定代词/副词/What/How填空

Idon’tknow__________aboutthisnewmovie.ButIhear__________saysit’sgreat.__________interestingitmustbe!Iwanttogo_________towatchitwithmyfriend.Ithink__________canstopusfromgoing,andwewillhave__________goodtoshareafterwatching.anythingeveryoneHowsomewherenothingsomething语法综合小练-句型转换1.Thereissomethingwrongwithmybike.（一般疑问句）2.Theboyrunsveryfast.（改为感叹句）3.Everyoneintheclasscanfinishthework.（部分否定）4.Shewentsomewherefunlastweek.（否定句）5.Itisabeautifulpark.（改为感叹句）Isthereanythingwrongwithyourbike?Howfasttheboyruns!Noteveryoneintheclasscanfinishthework.Shedidn’tgoanywherefunlastweek.Whatabeautifulparkitis!/Howbeautifultheparkis!知识点总结-不定代词&地点/时间副词核心构成：some/any/no/every+后缀some-肯，any-否/疑，no-自带否定every-表全部，作主语接单数动词地点/时间副词后不接介词牢记no-=notany-，避免否定叠加知识点总结-感叹句W