牛津译林版九年级英语上册情态动词知识点讲解及专项练习常州4IkeepthebookforaweekSorryImafraidyouANeedcouldntBNeedcantCMaycouldntDMaycant淮安5WillyoustayherefordinnerwithusSorryIMymotheriswaitingformeathomeAmustntBcantCneedntDcouldnt连云港4AccordingtothenoticeguestsatthishotelusethesportscenteratnoextracostAcanBshouldCmustDneed南通6HelikecoffeeIseehimdrinkacupattimesAmustBmayCcantDmustnt苏州4SomepeopledontshowtheirtalentsattheverybeginningIagreeEvenEinsteinreaduntilhewassevenAcantBmustntCcouldntDneednt泰州10ThistaskisreallybeyondmeWellifyousolveityouwontgetpaidAcantBneedntCmustntDshouldnt无锡4WiththeirnewlockyousearchforkeysinyourbaganymoreIsntitcoolAneedntBcantCmustntDshouldnt宿迁54545ExcusemeisthisthewaytoNo10MiddleSchool4545OhsorryImnotsureButitbeAmustBshouldCneedDmay徐州334545IsKatecomingtothemeetingthisevening454545NoshebeatthemeetingShetotheUSAAmustnthasgoneBshouldnthasbeenCcanthasgoneDcanthasbeen盐城4SizeandtypedonotmatteryoudoalmostanythingifyounevergiveupAshouldBmustCneedDcanKeysDBABAAADCD讲知识情态动词一整体把握共同点情态动词本身有一定的词义表示说话人的语气情绪或态度的动词例Youshouldntjudgeamanalwaysbytheclothes表示劝告WouldyoupleasetellmewhereIcanfindhim表示客气Iwillnotbelateforclassinthemorninganymore表示意愿Itmustberainingveryhard表示判断主要特点1情态动词没有人称和数的变化不能独立作谓语只能用在行为动词原形前一起构成谓语2情态动词的否定式是直接在情态动词后加否定词not疑间式是将情态动词置于句首二重点突破三个词Cancouldmaymightmustshould是情态动词中使用频率最高的也是用法最灵活的三组词1cancould表示能力如体力和脑力方面意思是能会等过去式是例CanyoureadthemusicCanyoumovethestoneNoonecouldanswerthequestionlastweek也表示客观可能性即客观原因形成的能力beableto它不是情态动词但在表示能力这个意思上有一些相通之处can表示现在could表示过去而beableto可用于多种时态例HewillbeabletosolvetheproblemswhenhegrowsupFrankisillHehasntbeenabletogotoschoolforaweekbeableto可以和其他情态动词连用cancould不可以如例Hemightbeabletofixyourcar表示请求或允许多用在口语中意思是可以能等用于疑问句中表示用来提出要求用于否定句中表示不允许例CanyouhelpmetakethesebookstotheclassroomYoucantplaybasketballhere在表达请求时可以用比语气更委婉例Couldyouexplainitagain在疑问句中用could或might代替不表示过去式只是语气更委婉但不能用于肯定句和答语中例一CouldIcometoseeyoutomorrow一YesyoucanNoImafraidnot表示一种可能性推测多与动词连用例HecanbeathomenowItcantberainingnow不可能用于疑问句和否定句时带有惊讶怀疑不相信的感情色彩例HowcanitbetrueThiscantbedonebyhim2maymight表示请求和允许比语气更委婉而不是过去式否定回答时一般用或表示不可以用语气更强表示禁止例MightMayIsmokehereNoyoumustntThisisanosmokingareaMayMightIhavealookatthephotosYesyoucanNoyoucantmustnt用于祈使句表示祝愿置于句首例Mayyouhaveapleasanttrip表示推测可能性不用于疑问句用不表示过去式而是表示可能性比小例HemaymightbeverybusynowTheymightnotbeabletogethereontimeMustshould1表示义务意图或建议意思是必须必要例Everyonemustobeythetrafficrules在回答must引出的问句时如果是否定回答不能用mustnt禁止不准而用neednt或donthaveto意思是不必例MustIhelphimwithhispaintingYesyoumustNoyoudonthavetoyouneedntmust强调说话人的主观看法表示有义务必须做某事haveto强调的是客观需要不得不must只有一般现在时haveto有更多的时态形式而且还有人称变化例Imustworkhardtomakemydreamcometrue主观意愿Ihavetostayathomebecauseitistoohot客观需要YoumustgoshoppingnowYourunclewillcometoseeusthisafternoonIwillhavetostartearlytomorrowinordertocatchtheearlybusHehastogohomeearlytoday的疑问句和否定句的变化通过助动词来完成例Youdonthavetowatertheflowers表示推测只用于肯定的陈述句可以表示确定也可以表示极大的可能性例YoureTomsgoodfriendsoyoumustknowwhathelikesbestYourmothermustbewaitingforyounowTheymustbehungryaftersuchalongwalk3should表示应该的意思语气上不如must例WeshouldhelpthosewhoareintroubleYoushouldtellthechildrennottoplayinthestreet三其他情态动词1shall1shall用于第一人称时表示征求对方的意见例Shallwediscusstheproblemthisevening2shall用于第二三人称表示说话人给对方的命令警告允诺或威胁例Youshallcatchacoldifyouswimintheriver警告Heshallbepunished威胁2wi1lwould1表示请求建议等would不表示过去式而是表示语气更委婉例WillWouldwakemeupatsixplease2表示意志愿望和决心例IpromiseIwillnotdodrinkdriving3would表示过去反复发生的动作或某种倾向和usedto意思相近但更为正式且没有现已无此习惯的含义例WhenitwastoohotIwouldgotomountainforvacation3need1作情态动词时通常用在疑问句否定句中例NeedhegiveuphisplantomakecarsHeneednttaketherisk要注意的是need不用于肯定句它的肯定回答要用must如例NeedIstayhereanylongerNoyouneedntYesyoumust2need作行为动词同时可用于疑问句否定句和肯定句后接名词动名词或不定式例HeneedstomakeadecisionrightnowTheflowersneedwateringtobewatered重点突破情态动词动词原形表示对现在的推测1must表示肯定的推测100的肯定一般用于肯定句中如Hemustbeathomebecausethelightisstillon2Should表示推测的可能性比较大must的可能性小一点如Itisalready10oclocknowtheyshouldbethere3can表示推测时一般用于否定句或疑问句如WhoisknockingatthedoorCanitbethepostmancould表示推测时语气can比要弱说话者留有余地CoulditbeananimalItcouldnotbebecauseitisnotmoving4may表示推测用于肯定句might也可以表推测只是表示其可能性较小于may如ThemanmaybeyournewteacherWhereisMrLiHemightbeworkinginhisoffice情态动词易混点归纳易混点一can和beableto两者表示能力时用法相同但can只有原形can和过去式could两种形式在其他时态中要用beableto来表示另外beableto常常指经过努力花费了时间和劳力之后才能做到某事如JimcantspeakEnglish吉姆不会说英语HecouldspeakEnglishat5他五岁时就会说英语Wellbeabletoseehimnextweek下星期我们将会见到他Hehasbeenabletodrive他已经会开车了Imsureyoullbeabletofinishitquickly我相信你能迅速地完成Wewereabletoreachthetopofthemountainatnoon我们能在中午到达山顶易混点二can和may1can和may均可用来征求意见或许可意为可以一般可互换使用如CanMayIhelpyou我能帮助你吗2can和may表示推测可能性时的区别Can不肯May不问妈妈must肯定不否问1在肯定句中用mightmaymust不用can如Shemaybeintheclassroom她可能在教室里2在否定句中用cant不可能不用maymust3在疑问句中表示推测用can不用mightmaymustWherecantheybenow他们现在可能在哪儿Thatcantbetrue那不可能是真的易混点三maybe和maybe用法区别常用位置maybemay为情态动词be为动词原形句中作谓语maybe副词大概也许相当于perhaps句首作状语例如HemaybewrongbutImnotsure也许他错了但我也不确定易混点四cant和mustnt1cant根据其基本用法可译为1不会如IcantspeakEnglish我不会说英语2不能如Wecantdoitnowbecauseitstoodark天太黑了我们现在干不了3否定句中表示推测不可能如Themancantbeourteacherbecauseheismuchyoungerthanourteacher那个人不可能是咱们老师他年轻得多2mustnt意为禁止不许用来表达命令表示强烈的语气如YoumustntplayfootballinthestreetItstoodangerous你不可以在街上踢足球太危险了易混点五must和haveto1must侧重于个人意志和主观上的必要haveto侧重于客观上的必要可用于现在时过去时和将来时如IknowImuststudyhard我知道我必须努力学习MybrotherwasveryillsoIhadtocallthedoctorinthemidnight我弟弟病得厉害我只得半夜里把医生请来IhaventgotanymoneywithmesoIllhavetoborrowsomefrommyfriend我身上没带钱只好向朋友借点了Hesaidtheymustworkhard他说他们必须努力工作2haveto可以用于多种时态而must只用于一般现在或将来如ThecompositionisduetohandinthismorningsoIhadtofinishitlastnight作文今天早晨到期因此我不得不昨天晚上完成练题目12018江苏泰州TokeepchildrenawayfromdangerduringthecomingsummerholidayparentsgivethemsomesafetytipsAshouldBmayCcouldDmight答案A解析考查情态动词句意为了在即将到来的暑假期间让孩子们远离危险家长们应该给他们一些安全提示表示应当应该应用should故选A24545IfIwanttobeanastronauthowwillIgettobeone454545YoudowellinschoolandtameyourfearsmayBcanCmustDcould答案C解析考察情态动词句意成为一个宇航员的必备条件是擅长学业克服恐惧故选C3LooklittleJimisswimmingsofastIbelievemyeyesAshouldntBcantCmustntDneednt答案B解析考察情态动词句意小吉姆游的很快我不能相信自己的眼睛故选B4MilliespokeinaverylowvoicebutIunderstandwhatshesaidAcouldBmightCcanDmay答案C解析考察情态动词句意虽然Millie说得很小声但是我能理解她说的内容表示能力用can故选C5HowamazingthisrobotisWowithasvideocamerasinitseyessoitseeandinteractwithpeopleAmayBcanCmustDshould答案B解析考察情态动词句意它的眼睛里有录像机所以他能看见并且和人们互动表示能力用can故选B6IsDavidcomingbytrainHeshouldbuthenotHelikesdrivinghiscarAcanBneedCmustDmay答案D解析考察情态动词句意大卫应该坐火车来但是他有可能不坐他喜欢自己开车故选D情态动词专题学案初测试常州4IkeepthebookforaweekSorryImafraidyouANeedcouldntBNeedcantCMaycouldntDMaycant淮安5WillyoustayherefordinnerwithusSorryIMymotheriswaitingformeathomeAmustntBcantCneedntDcouldnt连云港4AccordingtothenoticeguestsatthishotelusethesportscenteratnoextracostAcanBshouldCmustDneed南通6HelikecoffeeIseehimdrinkacupattimesAmustBmayCcantDmustnt苏州4SomepeopledontshowtheirtalentsattheverybeginningIagreeEvenEinsteinreaduntilhewassevenAcantBmustntCcouldntDneednt泰州10ThistaskisreallybeyondmeWellifyousolveityouwontgetpaidAcantBneedntCmustntDshouldnt无锡4WiththeirnewlockyousearchforkeysinyourbaganymoreIsntitcoolAneedntBcantCmustntDshouldnt宿迁54545ExcusemeisthisthewaytoNo10MiddleSchool4545OhsorryImnotsureButitbeAmustBshouldCneedDmay徐州334545IsKatecomingtothemeetingthisevening454545NoshebeatthemeetingShetotheUSAAmustnthasgoneBshouldnthasbeenCcanthasgoneDcanthasbeen盐城4SizeandtypedonotmatteryoudoalmostanythingifyounevergiveupAshouldBmustCneedDcan讲知识情态动词一整体把握共同点情态动词本身有一定的词义表示说话人的语气情绪或态度的动词例Youshouldntjudgeamanalwaysbytheclothes表示劝告WouldyoupleasetellmewhereIcanfindhim表示客气Iwillnotbelateforclassinthemorninganymore表示意愿Itmustberainingveryhard表示判断主要特点1情态动词没有人称和数的变化不能独立作谓语只能用在行为动词原形前一起构成谓语2情态动词的否定式是直接在情态动词后加否定词not疑间式是将情态动词置于句首二重点突破三个词Cancouldmaymightmustshould是情态动词中使用频率最高的也是用法最灵活的三组词1cancould表示能力如体力和脑力方面意思是能会等过去式是例CanyoureadthemusicCanyoumovethestoneNoonecouldanswerthequestionlastweek也表示客观可能性即客观原因形成的能力beableto它不是情态动词但在表示能力这个意思上有一些相通之处can表示现在could表示过去而beableto可用于多种时态例HewillbeabletosolvetheproblemswhenhegrowsupFrankisillHehasntbeenabletogotoschoolforaweekbeableto可以和其他情态动词连用cancould不可以如例Hemightbeabletofixyourcar表示请求或允许多用在口语中意思是可以能等用于疑问句中表示用来提出要求用于否定句中表示不允许例CanyouhelpmetakethesebookstotheclassroomYoucantplaybasketballhere在表达请求时可以用比语气更委婉例Couldyouexplainitagain在疑问句中用could或might代替不表示过去式只是语气更委婉但不能用于肯定句和答语中例一CouldIcometoseeyoutomorrow一YesyoucanNoImafraidnot表示一种可能性推测多与动词连用例HecanbeathomenowItcantberainingnow不可能用于疑问句和否定句时带有惊讶怀疑不相信的感情色彩例HowcanitbetrueThiscantbedonebyhim2maymight表示请求和允许比语气更委婉而不是过去式否定回答时一般用或表示不可以用语气更强表示禁止例MightMayIsmokehereNoyoumustntThisisanosmokingareaMayMightIhavealookatthephotosYesyoucanNoyoucantmustnt用于祈使句表示祝愿置于句首例Mayyouhaveapleasanttrip表示推测可能性不用于疑问句用不表示过去式而是表示可能性比小例HemaymightbeverybusynowTheymightnotbeabletogethereontimeMustshould1表示义务意图或建议意思是必须必要例Everyonemustobeythetrafficrules在回答must引出的问句时如果是否定回答不能用mustnt禁止不准而用neednt或donthaveto意思是不必例MustIhelphimwithhispaintingYesyoumustNoyoudonthavetoyouneedntmust强调说话人的主观看法表示有义务必须做某事haveto强调的是客观需要不得不must只有一般现在时haveto有更多的时态形式而且还有人称变化例Imustworkhardtomakemydreamcometrue主观意愿Ihavetostayathomebecauseitistoohot客观需要YoumustgoshoppingnowYourunclewillcometoseeusthisafternoonIwillhavetostartearlytomorrowinordertocatchtheearlybusHehastogohomeearlytoday的疑问句和否定句的变化通过助动词来完成例Youdonthavetowatertheflowers表示推测只用于肯定的陈述句可以表示确定也可以表示极大的可能性例YoureTomsgoodfriendsoyoumustknowwhathelikesbestYourmothermustbewaitingforyounowTheymustbehungryaftersuchalongwalk3should表示应该的意思语气上不如must例WeshouldhelpthosewhoareintroubleYoushouldtellthechildrennottoplayinthestreet三其他情态动词1shall1shall用于第一人称时表示征求对方的意见例Shallwediscusstheproblemthisevening2shall用于第二三人称表示说话人给对方的命令警告允诺或威胁例Youshallcatchacoldifyouswimintheriver警告Heshallbepunished威胁2wi1lwould1表示请求建议等would不表示过去式而是表示语气更委婉例WillWouldwakemeupatsixplease2表示意志愿望和决心例IpromiseIwillnotdodrinkdriving3would表示过去反复发生的动作或某种倾向和usedto意思相近但更为正式且没有现已无此习惯的含义例WhenitwastoohotIwouldgotomountainforvacation3need1作情态动词时通常用在疑问句否定句中例NeedhegiveuphisplantomakecarsHeneednttaketherisk要注意的是need不用于肯定句它的肯定回答要用must如例NeedIstayhereanylongerNoyouneedntYesyoumust2need作行为动词同时可用于疑问句否定句和肯定句后接名词动名词或不定式例HeneedstomakeadecisionrightnowTheflowersneedwateringtobewatered重点突破情态动词动词原形表示对现在的推测1must表示肯定的推测100的肯定一般用于肯定句中如Hemustbeathomebecausethelightisstillon2Should表示推测的可能性比较大must的可能性小一点如Itisalready10oclocknowtheyshouldbethere3can表示推测时一般用于否定句或疑问句如WhoisknockingatthedoorCanitbethepostmancould表示推测时语气can比要弱说话者留有余地CoulditbeananimalItcouldnotbebecauseitisnotmoving4may表示推测用于肯定句might也可以表推测只是表示其可能性较小于may如ThemanmaybeyournewteacherWhereisMrLiHemightbeworkinginhisoffice情态动词易混点归纳易混点一can和beableto两者表示能力时用法相同但can只有原形can和过去式could两种形式在其他时态中要用beableto来表示另外beableto常常指经过努力花费了时间和劳力之后才能做到某事如JimcantspeakEnglish吉姆不会说英语HecouldspeakEnglishat5他五岁时就会说英语Wellbeabletoseehimnextweek下星期我们将会见到他Hehasbeenabletodrive他已经会开车了Imsureyoullbeabletofinishitquickly我相信你能迅速地完成Wewereabletoreachthetopofthemountainatnoon我们能在中午到达山顶易混点二can和may1can和may均可用来征求意见或许可意为可以一般可互换使用如CanMayIhelpyou我能帮助你吗2can和may表示推测可能性时的区别Can不肯May不问妈妈must肯定不否问1在肯定句中用mightmaymust不用can如Shemaybeintheclassroom她可能在教室里2在否定句中用cant不可能不用maymust3在疑问句中表示推测用can不用mightmaymustWherecantheybenow他们现在可能在哪儿Thatcantbetrue那不可能是真的易混点三maybe和maybe用法区别常用位置maybemay为情态动词be为动词原形句中作谓语maybe副词大概也许相当于perhaps句首作状语例如HemaybewrongbutImnotsure也许他错了但我也不确定易混点四cant和mustnt1cant根据其基本用法可译为1不会如IcantspeakEnglish我不会说英语2不能如Wecantdoitnowbecauseitstoodark天太黑了我们现在干不了3否定句中表示推测不可能如Themancantbeourteacherbecauseheismuchyoungerthanourteacher那个人不可能是咱们老师他年轻得多2mustnt意为禁止不许用来表达命令表示强烈的语气如YoumustntplayfootballinthestreetItstoodangerous你不可以在街上踢足球太危险了易混点五must和haveto1must侧重于个人意志和主观上的必要haveto侧重于客观上的必要可用于现在时过去时和将来时如IknowImuststudyhard我知道我必须努力学习MybrotherwasveryillsoIhadtocallthedoctorinthemidnight我弟弟病得厉害我只得半夜里把医生请来IhaventgotanymoneywithmesoIllhavetoborrowsomefrommyfriend我身上没带钱只好向朋友借点了Hesaidtheymustworkhard他说他们必须努力工作2haveto可以用于多种时态而must只用于一般现在或将来如ThecompositionisduetohandinthismorningsoIhadtofinishitlastnight作文今天早晨到期因此我不得不昨天晚上完成练题目12018江苏泰州TokeepchildrenawayfromdangerduringthecomingsummerholidayparentsgivethemsomesafetytipsAshouldBmayCcouldDmight24545IfIwanttobeanastronauthowwillIgettobeone454545YoudowellinschoolandtameyourfearsmayBcanCmustDcould3LooklittleJimisswimmingsofastIbelievemyeyesAshouldntBcantCmustntDneednt4MilliespokeinaverylowvoicebutIunderstandwhatshesaidAcouldBmightCcanDmay5HowamazingthisrobotisWowithasvideocamerasinitseyessoitseeandinteractwithpeopleAmayBcanCmustDshould6IsDavidcomingbytrainHeshouldbuthenotHelikesdrivinghiscarAcanBneedCmustDmay