八年级英语上册 Unit 11《Could you please clean your room》Section A1 课件 人教新目标版.ppt

unit11couldyoupleasecleanyourroom sectionaperiod1 languagegoals makepoliterequestsaskforpermission newwords dish meet work doyourhomework watchtv sleep listentomusic readsomebooks whatdoyouusuallydoathome doyouoftenhelpyourparentsdochores dochoresdohousework whatdoyouoftendotohelpyourparents dothedisheswashthedishes sweepthefloor takeoutthetrash makethebedmakeyourbed foldtheclothesfoldyourclothes livingroomcleanthelivingroom 1apairworkdoyoudothesechoresathome write y foryes and n forno y n 1blisten inthechartbelow write m nexttomom schoresand p nexttopeter schores m m p p p m find4choresshouldbedone dishes trash floor clothes couldyoupleasesweepthefloor yes sure couldyouplease couldyouplease couldyouplease tapescript mom peter weneedtocleanthehouse yourgrandmaiscomingoverat7 00 peter okay butineedtodomyhomeworkfirst mom yes that sright afteryoufinishyourhomework let scleanthekitchen icandothedishesand sweepthefloor couldyoutakeoutthetrash peter yes sure mom good andcouldyoumakeyourbedandfoldyourclothes peter allright mom andlet ssee icancleanthelivingroom couldyoupleasesweepthefloor yes sure couldyouplease dothedishessweepthefloortakeoutthetrashmakeyourbedfoldyourclothescleanthelivingroomopenthedoorclosethewindowturnonthetvwashyourclothes yes sure yes ofcourse allright no ihaveto yes butihaveto sorry ihaveto 区别动词do和make dothedishes洗碗domyhomework做家庭作业dochores做家务活dothelaundry洗衣dosomeshopping购物dosomereading读书 do与动作及非实质性的事连用 与词尾是 ing的动作名词连用 makeyourbed铺床makebreakfast做早餐makedinner做晚饭maketea泡茶makemyselfacupofcoffee给自己冲一杯咖啡 make表示做 制造 整理冲 泡 饮料 等 2alistening whydoespeter sfathersay no tapescript peter hey dad dad yes peter couldigotothemoviestonight dad iguessso butdon tstayoutlate peter couldistayoutuntileleven dad no youcan t youhaveatesttomorrow remember peter oh yeah well couldiusethecar dad sorry butineedit ihavetogotoameeting peter couldyougivemearidedowntown dad sure studenta youarepeter askifyoucandothings studentb youarepeter sfather say yes or no ifyousay no giveareason 2cpairword a couldiuseyourcomputer b sorry i mgoingtoworkonitnow a well couldiwatchtv b yes youcan butfirstyouhavetocleanyourroom 情态动词用法小结 情态动词的语法特征 1 情态动词不能表示正在发生或已经发生的事情 只表示期待或估计某事的发生 2 情态动词除ought和have外 后面只能接不带to的不定式 3 情态动词没有人称 数的变化 即情态动词第三人称单数不加 s 4 情态动词没有非谓语形式 即没有不定式 分词等形式 could与can的区别 could与can都是情态动词 could是can的过去式 二者都可用于表示请求 但是用法稍有不同 can表示一般性的请求 语气随便 常用于熟人之间或长辈对晚辈 上级对下级的场合 e g canyoutellusyourstory tony tony 你能给我们讲讲你的故事吗 could表示有礼貌的请求 语气委婉 常用于非熟人之间或晚辈对长辈 下级对上级的场合 e g couldyoutellusifitsnowsinwinterinaustralia sure 请告诉我们 澳大利亚冬天下雪吗 当然可以 提出委婉的请求在回答中不可用could couldihavethetelevisionon yes youcan no youcan t 2 在否定 疑问句中表示推测或怀疑 hecouldn tbeabadman 他不大可能是坏人 may和might表示允许或请求 表示没有把握的推测 may放在句首 表示祝愿 maygodblessyou hemightbeathome 注意 might表示推测时 不表示时态 只是可能性比may小 haveto和must1 两词都是 必须 的意思 haveto表示客观的需要 must表示说话人主观上的看法 即主观上的必要 mybrotherwasveryill soihadtocallthedoctorinthemiddleofthenight 我弟弟病得很厉害 我只得半夜里把医生请来 客观上需要做这件事 hesaidthattheymustworkhard 他说他们必须努力工作 主观上要做这件事 2 haveto有人称 数 时态的变化 而must只有一种形式 但must可用于间接引语中表示过去的必要或义务 hehadtolookafterhissisteryesterday 3 在否定结构中 don thaveto表示 不必 mustn t表示 禁止 youdon thavetotellhimaboutit 你不一定要把此事告诉他 youmustn ttellhimaboutit 你一定不要把这件事告诉他 用情态动词can can t may must mustn t needn t could填空 1 youcomeandplaywithusnow i mafraidi i dothecooking i comelater 2 wecleanthewindowstoday no you you cleanthemtomorrow could can t must can must needn t can 3 iwatchtvthisevening mum no you work comefirst 4 icomein please yes please 5 excuseme youtellmethewaytothecinema may mustn t must can can 情态动词的回答方式问句needyou mustyou 肯定回答yes imust 否定回答no ineedn t don thaveto 典型例题1 couldiborrowyourdictionary yes ofcourse you a mightb willc cand should c can could表示委婉的语气 并不表示时态 答语中ofcourse 表示肯定的语气 允许某人做某事时 用can和may来表达 不能用could或might 复习 will与you连用 用来提出要求或下命令 should与you连用 用来提出劝告 2 shallitelljohnaboutit no you i vetoldhimalready a needn tb wouldn tc mustn td shouldn t 答案a needn t不必 不用