江苏省盐城市永丰初级中学八年级英语下册 Unit 1语法课件 牛津版.ppt

unit1 grammar pastandpresent before1965from1965tolastyear hemovedtwoblocksawayandlivedinthecentreoftown helivedinthenorthernpartoftownwithhisparents wheredidmr chenlive reading fillintheform restaurants postoffice cinema park shoppingmall theatre cleaner waste reading doesmr chenthinklifeisbetternowthanbefore why insomewaysitis nice beautifulmoderntown insomewaysitisn t impossible lonely reading 1 howlonghasmrchenlivedinsunshinetown 2 whathasthegovernmentdonetopartofthetowncentre 3 whydoesmrchenthinkitisimpossibletoseehisoldfriendsasoftenasbefore hehaslivedinsunshinetownsincehewasborn thegovernmenthasturnedpartofthetowncentreintoapark becausemostofhisoldfriendshavemovedaway thepresetperfecttense现在完成时 reading grammar thepresentperfecttense weusethesimplepasttensetotalkaboutwhathappenedatadefinitetimeinthepast 我们用一般过去时谈论过去某个时间里发生的动作 pastpresenteddiewasbornfouryearsago weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent我们用现在完成时谈论动作发生在过去并将持续到现在 ihavelivedheresinceiwasborn present past livedherewheniwasborn istilllivehere 现在完成时 用法 weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandhasaconnectionwiththepresent 我们用现在完成时谈论发生在过去并与现在有联系 对现在造成影响和结果的事情 eddiehasjusteatenhobo sfood present past atehobo sfood hobohasnothingtoeat ihavelostmymobilephone ilostmymobilephone andnowihavenomobilephonetouse 现在完成时 构成 现在完成时的肯定句句型主语 第一 二人称单 复数 have 第三人称复数 have 第三人称单数 has 过去分词 e g ihavefinishedmyhomework hehaseatensixapples theyhaveseenthatfilm 2 现在完成时的否定句句型主语 have has not 过去分词 hasnot hasn thavenot haven t e g ihavenotfinishedmyhomework hehasnoteatensixapples theyhavenotseenthatfilm 3 现在完成时的一般疑问句句型have has 主语 过去分词 yes 主语 have has no 主语 have hasnot e g haveyoufinishedyourhomework hasheeatensixapples havetheyseenthatfilm brushyourteeth brushedyourteeth a haveyou b yes ihave ihave no ihaven t ihaven t let spractise readthebook readthebook a hasshe b yes shehas shehas no shehasn t shehasn t havepizza a havethey b yes theyhave theyhave no theyhaven t theyhaven t hadpizza 动词的过去分词 规则动词的过去分词的构成 大多数的动词的过去分词是规则的 只需在动词后加 ed 例如 work workedlisten listenedjump jumpedvisit visited2 在以 e结尾的动词后只加 d 例如 close closedlike likedagree agreedmove moved 3 在以辅音字母加y结尾的动词 应将y改为i再加ed 例如 study studiedcarry carriedtry triedworry worried4 以重读闭音节结尾的动词 要双写末尾的辅音字母再加 ed 例如 stop stoppeddrop dropped 动词的过去分词 不规则动词的过去分词的构成 有些动词的原形和过去分词相同 例如 put puthurt hurtbecome becomerun run2 改变单词中间元音字母 例如 sit satwin wonhold held3 把单词结尾的字母d改为t 例如 lend lentspend spentsend sent 还有些动词的过去分词是不规则的 需要特殊记忆 课本第122 123页 4 以eep结尾的动词 把eep改为ept 例如 keep keptsleep slept5 过去分词以aught或ought结尾 例如 teach taughtbuy bought6 以ay结尾的动词 把ay变成aid 例如 say saidpay paid7 在原形词尾加n或en 例如 give giveneat eaten borrowed hoped made got planned cried sent watched said grew hit enjoyed wealsousethepresentperfecttensetotalkabouthowmanytimesanactionhashappenedtillnow ihavealreadyreadthisbookmanytimes wecanusethesetimeexpressionswiththepresentperfecttense alreadyyeteverneverjustrecentlysincefor 现在完成时 与already yet ever never just recently连用 1 already已经 常用于肯定句中 ihavealreadyseenthefilm 我已经看过这部电影了 2 yet1 已经 常用在疑问句中 haslindareadthebookyet 琳达已看过这本书了吗 2 还 仍然 常用于否定句和疑问句 hehasnotbeguntoworkyet 他还未开始工作 3 ever曾经 主要用于疑问句haveyoueverwantedtotravelaroundtheworld 你曾经想要周游世界吗 4 never从来没有 表示否定hehasneverseensuchatallbuilding 他从未见过这么高的楼 5 just刚刚 常用于肯定句中ihavejustfinishedlunch 我刚吃过午饭 6 recently不久前 最近ihaven tseenthemrecently 我近来没见过他们 haveyouuseditrecently 你最近用过它么 7 since自 以来for多长时间 ihave comebackfromthesupermarket for just since 2 ihave beentochendu for never ever 3 hehasworkedthere heleftschool already just since 4 shehasknownsam nineyears for never since 5 haveyou riddenahorse ever for yet just never since for ever 1 they finish theirhomeworkalready 2 john never visit china 3 mrli repair overtenbicyclessincemonday 4 we notsee eachotherforyears 5 myparents come backyet 6 ourteacher teach usalotaboutthehistoryofchina havefinished havenotcome hastaught havenotseen hasrepaired hasvisited anexamplem you see anyfilmsrecently sandy s no ihaven t whataboutyou m i see onelastsaturday s what sitabout m it saboutthechangesinbeijingoverthepastcentury fromthisfilm i learn moreaboutbeijing spastandpresent s oh ithinki hear aboutthefilm doyouplantoseeitagain m yes i dliketo have seen saw havelearnt haveheard 1 i vealreadyhaddinner 否 i dinner 2 hehasjustfinishedhishomework 否 he hishomework 3 mumhascookedthedinner 否 mum thedinner 4 ihavedonemyhomework 疑 youdoneyourhomework 5 ihaveriddenahorse 疑 you riddenahorse haven t had yet hasn t finished yet hasn tcooked 将下列句子改为否定句或疑问句 have yet have ever putthefollowingsentencesintoenglish 1 你已经制作好生日贺卡了吗 makingthebirthdaycard 2 我已经吃过早饭了 现在一点也不饿 i breakfast andnowiamnothungryatall 3 你这周日准备做什么 还没决定 whatareyougoingtodothissunday i havealreadyeaten haveyoufinished yet haven tdecidedy