情态动词基本用法与句型常考情态动词情态动词与时态中考出题模式与常见题型一、情态动词是什么？行为动词系动词助动词情态动词能够独立做谓语不能独立做谓语掌握情态动词的定义：表示可能、怀疑、允诺、愿望、义务、必要、猜测等的动词是情态动词。二、情态动词的基本句型•陈述句–主+情态动词+v原•疑问句–情态动词+主+v原？•考点：注意may,must疑问句的否定回答•否定句--主+情态动词not+v原•考点：注意hadbetter,need两种词性,oughtto的否定三、常考的情态动词1.can能;可能---could2.may可以--might3.must必须;一定4.need需要---非标准情态动词5.should----shall6.would---will7.hadbetter8.usedto过去常常9.Wouldrather宁愿10.oughtto应当能力乐意可能Can是情态动词，不能独立做谓语beableto是系动词，能够独立做谓语所有表示“意愿类题目”，都适用Can/Couldyougivemesomewater?Must肯定是（无否定）－－ｃａｎ可能是•1.Hewill__finishitbyhimself.•can/may/beableto/不填（多）•2.canyougiveme__suggestion?•another/other/theother/others•3.She___runfast,butIcan’t.•may/must/need/can乐意可能肯定回答一般是：Yes,please./Certainly./Sure等，否定回答一般是：Pleasedon't./No，youcan't/mustn't.can多用于疑问句和否定句，表示怀疑或不相信等态度；而may则多用于陈述句（肯定），表示一种揣测。Hemayberight他可能对Hecan’tberight他不可能对必须肯定肯定回答：yes,…must否定回答：no,youneedn’t/no,youdon’thavetocan多用于疑问句和否定句，表示怀疑或不相信等态度；Must表示推测时，不能用否定句Don’thaveto不必---mustn’t一定不能—needn’t不必must表必须有否定；表肯定，不能用否定句Must的否定Ididn’thearthephone.Imusthavebeenasleep.我刚才没有听到电话，我想必是睡着了情态动词行为动词Youneedn’tanswerthequestionnow.Youdon’tneedotanswerthequestionnow.Hadbetter最好•易错点：•错误理解为had,或better•否定•解析：•你最好立刻就做•Youhadbetterdoitrightnow.•你最好不要碰它•Youhadbetternottouchit.UsedtoBeusedtodoingBeusedtodoHeusedtogoshoppingonweekends.他过去常常周末去买东西TheEnglishmanisn’tusedtodrivingontherightinChina.Pensareusedtowriteonpaper.Wouldratherdo….thando…宁愿做…而不愿做•解析:宁愿而不愿，中考共三种表达方式•1、prefertodo….ratherthando…宁愿做…而不愿做…(动词词组)•例:Iprefertoswimratherthanstayathome.我宁愿去跑步也不愿待在家里•2、wouldratherdo….thando…宁愿做…而不愿做…(动词词组)•例:Iwouldratherswimthanstayathome.我宁愿去跑步也不愿待在家里•3、prefer…to…•Ipreferdogstocats.相对于猫.我更喜欢狗.•Wouldrather是情态动词，否定为wouldrathernotdo…Can与could的相同与不同•Can1.能力–hesaid:“Icandothat.”2.乐意–canIhelpyou?3.可能—Itcann’tberainy•Could1.能力,是can的过去式—Hesaidthathecoulddothat.2.表乐意,could可独立一词.CouldIgowithyou?(will—would;shall–should于此相似)•Will1.只用于将来时,hewillcometomorrow2.shall,will用来征求对方意见，shall用于第一人称，will用于第二人称，用来表示意愿；shall用于第二、第三人称，will用于第一人称。•Would1.过去将来时，是will的过去式.Hesaidthathewouldcometomorrow.2.表乐意Wouldyoulike…?3.虚拟语气•1.Thedoctorsuggestedthathe__themedicine3timesaday.多•Take/took/takes/shouldtake•解析•Suggest/advicethat主+should+v原。•考点:should省略；给时态迷惑•2.Shewouldleavethecityiftherain__.•Stops/wouldstop/stopped/stopping•解析:•1判断would---过去时，从句也用过去时•2主句过去将来，if从句用一般过去•3.Thepatientknewthathe__thewrongmdicine.•take/took/takes/shouldtake•1．must和haveto•【考例】--Mustwefinishgivingouttheposterstoday?•--Yes,we_______.Itcan'tbeputoffanylonger.[太原市]•A.canB.mayC.must•[答案]C。[解析]此题考查...
