广东省深圳市文汇中学七年级英语下册 Unit 6 Electricity Period 3 grammar课件 （新版）牛津深圳版.ppt

unit6electricity modalverbs icanplaybasketballwell canyou no ican t buticanswimfast icansingbeautifulsongs canyou no ican t buticanplaykonfu canyou no ican t acanandcannot weusecanandcannot can t tosayweareableornotabletodothings wecanuseelectricitytodomanythings wecannot can t electricity canyouthinkofanexample yes ican no icannot can t 1 hi playfootball 2 lo paintpictures 3 hi speakasmanylanguagesaslo 4 bothhiandlo dance 5 lo driveacar buthe playchess 6 hi swim buthe playtheguitar can can t can t can can t can can can t yes youmay can may canisitdown icomein yes youmay can no youmaynot can t may can bmayandmaynot weusemayandmaynottoaskforandgivepermission 许可 wealsousecanandcannot can t forthesamepurpose may caniuseyoumobilephone yes youmay can no youmaynot can t howareyoufeeling daisy notverywell igetyouachair yes thanks may i mgoingout iborrowyournewbicycle yes youmay beforeyougotomeetyourfriends canyoucomeandseethedoctorwithme may can yes i icarryyourbagforyou yes that sverykindofyou benny i mreadytogo youopenthedoorforme yes ican thanks can may can wemustsavewater wemustnotwastewater youmustn tsmoke mustyoudohomeworknow yes imust mustyoudoyourhomework no ineedn t canyouplaywithme sorry ican t youmay canplaywithjim cmustandmustnot weusemustandmustnot mustn t totellpeoplewhattodoorwhatnottodo youmustnot mustn tdothatbenny wemustalwaysbecarefulwithelectricity theymustnot mustn tplayneartheheater drinkmorewatergotobedearlyeatcoldfoodsharecupswithothersgooutalonetakethemedicineontime 1 imustdrinkmorewater 2 3 4 imustnot 5 6 thedoctortoldwhattodoandwhatnottodo imustgotobedearly imusttakethemedicineontime eatcoldfood imustnotsharecupswithothers imustnotgoouralone 情态动词 modalverbs 表示说话人的语气或情态 如请求 命令 愿望 能力以及可能性等 英语的情态动词有 can couldmay mightmustoughttoshall shouldwill woulddare daredneedhaveto 能够可能必须应该应该意愿敢需要不得不 动词原形 can could 能 能够 会 可以wecanspeakchinese hecandrawpictures 许可youcan may gohomenow 表怀疑 难以置信hecouldn t can t beherfather forhe stooyoung 注意 could为can的过去式外 could还有表示语气婉转之义 couldicomein 比canicomein 更有礼貌 但答语还用yes youcan no youcan t may might 允许 请求mayihaveaglassofwater mayyouborrowmeyourpen 可能 也许 may比might语气强 theymaybeinthelibrarynow hemightbeathome 表示祝愿mayyoualwaysbeyoung 注意 might为may的过去式外 might还有表示语气婉转之义 mightihavealook 比mayihavealook 更有礼貌 但答语还用yes youmay no youmaynot must 必须 应该wemustworkharder mustnot意为不应该 不许 wemustnotbeafraidofdifficulties youmustn tsmokehere 注意 must的提问肯定回答用must 否定用needn t mustireturnthebook yes youmust no youneedn t 情态动词记忆口诀 情态动词两要点 动词原形跟后面 could might说话语气较委婉 can表能力may许可 must责任或义务 否定回答needn t换 should oughtto应该 will would愿 haveto被迫 表客观 testformodalverbs 1 idownloadthearticleagain no youneedn t a shallb willc mustd can2 mustistayathome mum no you a needn t b mustn tc don td maynot c a 3 mayigoouttoplaybasketball dad no you youmustfinishyourhomeworkfirst a mustn tbmaynotc couldn td mightnot a 4 acomputer thinkforitself itmustbetoldwhattodo a can tb couldn tc maynotd should5 couldiborrowyourdictionary yes you a mightb mustc cand should a c 6 themantherebeournewteacher he be buti mnotsure a may mustn tb can mayc must can td can can t7 you bemorecarefulnexttime mayb mustc couldd might8 students smoke can tb mustn tc mightnot b b b 9 isthatkate scar it behers shehasjustgoneforameeting 2