高三英语模块3 语法复习：情态动词课件.ppt

revisionofmodule3welcometomyclass franklinwenzhouno 14highschool 情态动词 modalverb 1 情态动词除ought和have外 后面只能接不带to的不定式 2 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 ed ing 3 情态动词没有非谓语形式 即没有不定式 分词 动名词等形式 情态动词的语法特征 情态动词主要有 1 can could 否定或疑问的推测 不可能 可能吗2 may might 可能性的推测 可能3 must 肯定性的推测 想必4 should ought 应该5 need 需要 dare 敢 主要用在否定和疑问句中6 shall will would在一定场合下也可以用作情态动词 1 can表示能力icanspeakenglishwhilehecan t 2 表示允许canisithere 3 表示可能性thiscan tbetrue whatcanitmean theycan thavebeentoafrica may1 表示允许 征求别人意见 mayicomein yes please 2 表示判断和猜测hemaycome butiamnotsure thismaybetrueormaynotbetrue might语气婉转 或不是很肯定的猜测don tthrowtheemptybottleoutofthewindow youmighthurtsomeone 1 must表示 必须 youmustfinishyourhomeworkatonce youmustn tplaywithfire youmustn tplayfootballontheroad 2 表示猜测 语气很肯定shemustbehungry helookedworried hemusthavelosthisway it ssowetonthegroundthatitmusthaverainedheavilylastnight didn tit can could beableto的区别 we llbeabletofinishtheworksoon 1 can只用于现在式和过去式 could beableto可以用于各种时态 2 can的主语是人或物 beableto的主语是人 shecan beabletosingthesonginenglish 3 表示特定的某一过去能力或表示成功地做了某事时 只能用was wereableto 不能用could althoughthesoldierwasbadlywounded hewasabletotellwhathadhappened ihaven tbeenabletoseethefilm thecomputercanmakeyoufeelcomfortable sheranfastbutshecouldn t wasn tabletocatchthebus could have 过去分词表示对1 过去某种情况进行推测2 对已发生的动作或存在的状态进行推测 lindadidn tcatchthetrain shecouldhavecaughtit don tworry 1 peter comewithustonight butheisn tverysure a mustb canc mayd will c 2 couldicallyoubyyourfirstname yes you a willb couldc cand might c 3 sorry i mlate i haveturnedoffthealarmclockandgonebacktosleepagainthismorning a mustb shouldc cand will a will would常表示promise意愿 意志 agreement同意 pasthabit custom过去的习惯 request要求 判断下列句子中的can could是属于哪种情况 wewillcomehereatten agreement promise hewouldsleepverylate pasthabit custom wouldyouliketohavedinnerwithmetogether request will和would ifyouwillhelpmewithmyenglish iwillbeveryhappy ipromisedthatiwoulddomybest 1 will和would表示意愿 意志 可用于各种人称 willyoutellhimthenewsassoonashecomesback wouldyoupleasespeakagainmoreslowly 2 在疑问句中 will用于第二人称 表示请求或征求意见 would则语气更委婉 wouldyouchangethisbasketforanother it holdwater ok i mreallysorry a won tb can tc didn td doesn t a should prediction预测 应该 很可能 advice建议 劝告 shall should nothingshallstopmedoingit youshallfailifyoudon tworkharder 决心 意愿 意志 警告 命令 威胁 shall agreement同意 promise允诺决心 意愿 意志或警告 命令 威胁 常用于第二第三人称 在疑问句中 用来表示请求或征求意见 常用于一 三人称 shalliopenthewindowforyou shall 征求意见 youshould oughttohavetoldherthetruthearlier sheshouldn thaveleftwithoutsayingaword should oughttohavedone表示责备或批评 意为 本应该 但 oughtto的语气更强烈 用于否定则表示 本不该 但 情态动词的否定式 can t 不能 不可能maynot 可能不mustn t 不准 不许 禁止needn t 不必daren t 不敢won t 不愿意 就是不shan t 决不shouldn t 不该 1 excuseme butiwanttouseyourcomputertotypeareport you havemycomputerifyoudon ttakecareofit a shan tb mightnotc needn td shouldn t a 2 whencanicomeforthephotos ineedthemtomorrowafternoon they bereadyby12 00 a canb shouldc mightd need b 3 withsomuchworkonhand you toseethegamelastnight a mustn tgob couldhavegonec shouldn tgod shouldn thavegone d 1 isjohncomingbytrain heshould buthe not helikesdrivinghiscar 2002高考题 a mustb canc needd may2 ithasbeenannouncedthatcandidates 候选人 remainintheirseatsuntilallthepapershavebeencollected 2002上海高考题 a canb willc mayd shall3 iheardtheywentskiinginthemountainslastwinter 2002北京高考题 it truebecausetherewaslittlesnowthere a maynotbeb won tbec couldn tbed mustn tbe d d c 4 ithoughtyou likesomethingtoread soihavebroughtyousomebooks a mayb mightc wouldd must b 5 acomputer thinkforitself itmustbetoldwhattodo a can tb couldn tc maynotd mightnot a 6 theywill runthismachineontheirowninthreemonths a canb couldc mayd beableto7 thatbigcinema seat2 000people a canb shouldc oughttod isableto d a 8 couldiborrowyourdictionary yes ofcourseyou a mightb willc cand should9 mightiwatchtvaftersupper yes you a mayb mustc mightd can c a 10 you returnthebooknow youcankeepittillnextweekifyoulike a can tb mustn tc needn td maynot11 johnny you playwiththeknife you hurtyourself a won t can tb mustn t mayc shouldn t mustd can t shouldn t c b 在复合句中 主语从句 宾语从句 表语从句和同位语从句在用法上相当于名词 故统称为名词性从句 1 whenwewillstartisnotclear 2 mrsblackwon tbelievethathersonhasbecomeathief 3 myideaisthatweshoulddoitrightnow 4 ihadnoideathatyouwereherfriend 主语从句 宾语从句 表语从句 同位语从句 名词性从句由连接词 连接代词和连接副词引导 为陈述句语序 连词 主语 谓语 1 ithinkthathe llbeallrightinafewdays 2 iwonderifyoucandomeafavor 3 thequestionsiswhetherweshouldaskthemforhelp 连接词that 陈述句 whether 一般疑问句 在从句中不做成分 连接代词在从句中作主语 表语 定语或宾语 连接副词在从句中作状语 when time where place why reason purpose how manner youcan timagine whentheyreceivedthesenicechristmaspresents a howexcitedtheywereb howtheywereexcitedc howweretheyexcitedd theywerehowexcited a 连词判断方式 1 主句信息词 肯定意义 陈述句 that否定或疑问意义 疑问句疑问句结构完整 一般疑问句 whether疑问句结构不完整 特殊疑问句 疑问词疑问词 缺什么补什么 作业 填上适当的连接词 1 idon tknow hewillbeback 2 weheardthenews ourteamhadwon 3 therearosethequestion wecouldpalntthetreeswell 4 i msure theplan should bedelayedwillbediscussedtomorrow 5 thereasonforhisabsencewas marywasbadlyill 6 heleftwordtomysecretary hewouldcallmebackthatafternoon 7 iwonder tomwillcometodayortomorrow when that where that that that whether 1 thequestionis thefilmisworthseeing a ifb whatc whetherd how2 theyreceivedorders theworkbedoneatonce a whichb whenc d that3 ihavetheinformation a ofwhathe llcomesoonb thathe llcomesoonc ofthathe llcomesoond hiscom