高考英語一輪復(fù)習(xí) 高中語法8大重點(diǎn)語法項目速通 2.情態(tài)動詞課件.ppt

語法難點(diǎn)突破之二 情態(tài)動詞 modalverbs jack ihavegoodnewsforyou rose what jack theeducationaldepartmenthascarriedoutrulestoreducestudents toomuchstudyload rose really ifso idon thavetostayuplatetodosomuchhomeworkandmymommayallowmetoplaycomputergames jack thebestthingithinkisthaticanhavemoresparetimetotakeexerciseafterclass rose sure bytheway whoisyourfavoritesportsstar jack liuxiang ishouldsay rose tellmesomethingabouthim jack well maybeicanshowyousomephotos 一 weusemodalverbstotalkabout 1 ability 能力 2 obligation 義務(wù) 3 certainty 可能性 4 permission 允許 二 wealsousemodalverbsto 5 makerequests 提出請求 6 makesuggestions 提出建議 7 makeoffers 提供幫助 8 giveadvice 提出意見 1 ability 能力 liuxiangcanrunthe110mhurdleracewithin13seconds can could 1 can一般表示與生俱來的能力或者一種客觀可能性 還可以表示請求和允許 learningenglish bedifficult can mancannotlivewithoutair iuseyourbike can can could 2 在疑問句中 用could可表示請求 語氣較委婉 ihavethetelevisionon yes you no you could heasksifhe smokehere could can may can t i mafraidnot can could 3 表示驚異 懷疑 不相信的態(tài)度 主要用在否定句 疑問句或驚嘆句中 he ssuchanicepersonthathe committhecrime can t 你怎么會如此地粗心 howcanyoubesocareless canthisbetrue can could 4 cannever can t too表示 無論怎樣 也不過分 越 越好 你過馬路的時候再小心也不為過 youcan tbetoocarefulwhilecrossingtheroad attention can beableto區(qū)別 edisonalwayswonderedwhyhenscouldhatch 孵 chickenswhilehewasnotableto question arethetwomodalverbsinterchangeable 互換 ifnot why can表示與生俱來的能力或一種客觀可能 而beableto更加強(qiáng)調(diào)通過后天的學(xué)習(xí)和努力獲得的能力 或者在某個客觀的場合和背景下 能做到的事情 attention can beableto區(qū)別 abigfirebrokeoutinabchotelyesterday luckily everyone runoutofthebuilding wasableto 2 she speakbothenglishandfrench can i msotired ihavetodothetrainingforatleast10hoursaday 2 obligation 義務(wù) yethemustworkhardtowinthegoldmedal althoughliuxiangissogiftedinhurdlerace attention advisability necessity oughtto should haveto must yourmotherbringsyouupandtakesgoodcareofyou sowhensheisold you lookafterherinreturn a canb mayc havetod must shidongpengmightwinamedalattheolympicgames althoughthechanceofwinningamedalissmall i lltrymybest 3 certainty 可能性 attention veryuncertain almostcertain might should must may could oughtto will 1 he beathome 2 he beathome forhejustcalledmefromhishome15secondsago a mayb mightc must a mayb mightc must can must表示肯定的猜測 譯為 一定 不能用于否定句或疑問句 thismustbeyourpen hemustbedoinghishomeworknow hemusthavearrivedalready must must 2 表示 堅持 常用于固定句型 ifyoumustdosth 如果你非得要做某事 如果你真的要走 那就悄悄離開 ifyoumustleave doitquietly attention they bedoingtheexperimentinthelab why becausethelightsarestillburning a couldb canc mustd would 4 permission 允許 mayieatkfcifiwinthegoldmedal may might 1 表示許可 表示請求 允許時 might比may的語氣更委婉一些 might mayiuseyourcomputer yes youcan no youcan t mustn t may might 2 用于祈使句中表示祝愿 3 表示推測 可能 只用于肯定句 疑問句則要用can或could 祝你成功 mayyousucceed hemaybeverybusynow mayyoubehappyallyourlife 5 makingrequests 提出要求 canyouhelpmewithmytraining idon tknowhowtousethisequipment willcancouldwould informal formal 6 makingsuggestions 提出建議 shallwedothetraininginthemorning it stoohottotakeexerciseintheafternoon shall 1 shall用于第一 第三人稱疑問句中 表示說話人征求對方的意見 向?qū)Ψ秸埵净蛱峁椭?1 shallwebeginourlesson 2 whenshallhebeallowedtoleavehospital 3 shallicarrythisbagforyou shall 2 shall用于第二 第三人稱 表示說話人給對方命令 警告 允諾或威脅 youshallfailifyoudon tworkharder heshallbepunishedaccordingtotherule 等我讀完這本書 就會給他的 heshallhavethebookwhenifinishit 警告 威脅 允諾 7 makingoffers 提供幫助 don tworry dear iwillwashthemrightaway mom mydirtyclotheshavebeenpiledup idon thavetime will would 1 表示請求 建議等 would比will委婉客氣 sentencepattern wouldyouplease wouldyoumind wouldrather wouldyoulike will would 2 表示意志 愿望和決心 iwillneverdothatagain will would 3 可表示經(jīng)常性 習(xí)慣性 傾向性 翻譯為 經(jīng)常 慣于 總是 1 theoldman haveasmokeunderabigtreeeveryafternoonafterhefinishedhisfarmwork would 2 門就是打不開 thedoorwon topen will would attention iwillgototheparkwithyoutomorrowifyouwilloffermelunch question isthissentencecorrect why 情態(tài)動詞 表示 意愿 8 givingadvice 提出意見 youshouldnot oughtnottoeatsomuchbeforerunning howdelicious should 1 should表示勸告 建議 命令 其同義詞是oughtto 在疑問句中 通常用should代替ought to shouldiopenthewindow 我們應(yīng)當(dāng)要相互學(xué)習(xí) weshouldlearnfromeachother should 2 情態(tài)動詞should用于第一人稱時可以表示說話人的一種謙遜 客氣 委婉的語氣 rose sure bytheway whoisyouridol jack liuxiang ishouldsay ishouldadviseyounottodothatagain 3 should表示意外或驚訝常譯為 居然 竟然 ican tbelievesuchagentlemanshouldbesorudetotheold 我不敢相信這樣一個紳士居然對老人如此無禮 should 4 should表示猜測時 一般指按經(jīng)驗(yàn)或邏輯判斷 翻譯成 照說應(yīng)該 估計 想必 should whencanicomeforthephotos ineedthemtomorrowafternoon they bereadyby12 00 a canb shouldc mightd need tobecontinued 三 情態(tài)動詞 havedone 的用法 1 musthavedone對過去某事的十分肯定猜測 2 may mighthavedone對過去某事的可能性猜測 3 can t couldn thavedone對過去某事的否定猜測 4 should oughttohavedone過去應(yīng)該做而未做 5 shouldn t oughtn ttohavedone過去不應(yīng)該做而實(shí)際上做了 6 needn thavedone本沒有必要做的事實(shí)際卻做了 7 couldhavedone本來能夠做的 有能力做 事實(shí)際卻未做到 let shaveatry practice withsomuchworkonhand you toseethegamelastnight a mustn tgob couldhavegonec shouldn tgod shouldn thavegone 2 therewasplentyoftime she a mustn thavehurriedb couldn thavehurriedc mustnothurryd needn thavehurried practice 3 isawmaryinthelibraryyesterday you her sheisstillabroad a mustn tseeb can thaveseenc mustn thaveseend couldn tsee 4 auntmary thetrain otherwiseshewouldhavearrivedherebynow a musthavemissedb shouldhavemissedc hadmissedd mightmiss 四 可兼做行為動詞的情態(tài)動詞 need dare 情態(tài)動詞 動詞原形 行為動詞 need dare 1 無人稱和數(shù)的變化 2 尤其用于 否定句及疑問句中 在if whether之后 或與hardly never noone nobody連用 3 常以needn t和daren t的形式出現(xiàn) 4 dare有其過去時dared 多用于肯定句 sb needtododaretodo sth needtobedone sth needdoing hedaren tspeakenglishbeforesuchacrowd darehe 判斷正誤 hedaren ttospeakenglishbeforesuchacrowd didhe thesedishesneedbecleanedcarefully thesedishesneedtobecleanedcarefully thesedishesneedclea