2024年河南省平顶山市第四十二中学中考英语语法专题情态动词课件

情态动词一.情态动词的基本特征：JimcanspeakEnglishandFrench,butwecanonlyspeakChinese.2.Wemustworkhardatallsubjects.3.Tomcouldswimwhenhewas5.情态动词没有_____和___的变化，但有_____变化；有词义，但不能单独作谓语，必须和________一起构成谓语；人称数动词原形时态课前预习二.基本用法：1.表能力：____,____,_____,_____2.表禁止：_____3.表建议：____,_______4：表不需要：_____,_________5.表请求___,____,____,____,____,____6.表肯定推测：

___>______>____>_____

表否定推测：____>______自主预习2读情态动词专题讲解（以及后面例句），并用荧光笔画出重点。三、情态动词的用法●Can的用法1.can常用来表示能力，"能，会"

你会讲日语吗？_________________________?

不，我不会。_______________2.can用来表示推测，用于否定句、疑问句中。Jim不可能在办公室。________________________这消息可能是真的吗？_______________________

CanyouspeakJapaneseNo,Ican’t.Jimcan’tbeintheoffice.Canthenewsbetrue?●Can的用法3.can表示请求，允许，"可能"你能和我一起去购物吗？_________________________4.can't用来作MayI….?的否定回答----今天下午我可以独自去冲浪吗？---______________________________________?

----不，不可以。太危险了。---__________________________________Canyougoshoppingwithme?MayIgosurfingalonethisafternoonNo,youcan’t.It’stoodangerous.●could的用法1.can的过去式，表示过去的能力Tom10岁时就会写文章了。___________________________________________2.could在疑问句中表示委婉的语气，不表过去。---_____I______(借)yourpen?---Yes,you_____.

Tomcouldwritearticleswhenhewas10yearsold.Couldborrowcan● may的用法1. may表示请求，许可，“可以”,比can正式。--____Igonow?---Yes,you___.You___practicesingingafterclass.2. may表示推测常用于肯定句，意为"可能，也许”。might表示推测语气低于mayIt____raintomorrow.John___gotherewithustonight,butheisn'tverysureaboutit.AmustBmayCcanDwillMaymayB

maymay3.对may的一般问句的回答，肯定回答一般是：Yes,you___________.Certainly/Sure否定回答一般是:No，you_______No,you__________.____Igonow?Yes,you_____.

No，you__________Iplay_________________now?No,you________.Doyourhomeworkfirst.can'tmustn'tcan/maycanMaycan'tMaycomputergamesmustn't●must的用法1.must表示主观看法，意为"必须，一定"在我回来之前你必须呆在这。You_____stayhere_______I____________.我们现在必须交作业吗？______we__________ourhomeworknow?2.mustn't表示"绝不允许，禁止"，可回答may提问的一般疑问句的否定回答。你不许玩火！__________________________MayIwatchTVnow?No,you___________（绝不允许）

mustuntilcomebackMusthandinYoumustn’tplaywithfire.mustn't●must的用法3.must表示有把握的推测，用于肯定句。Thelightis____(开着),he_______beathome.4.must引导的一般疑问句，肯定回答用_______,否定回答用________或____________________________________Ifinishmyhomeworknow?No,you_________★ 当must表推测时，反意疑问句要用实际问句的助动词。ShemustbeinBeijing,_____she?Jimmusthavefinishedhishomework,_______he.onmustneedn’tdon’thaveto

/doesn’thavetoMustneedn’tisn’thasn’tmust●need的用法1.need表示"需要"用于否定句和疑问句中，need提问时，肯定回答用______否定回答用________青少年有必要学习上网吗？____________________________________?Yes,they______./No,they___________.2.need作实义动词有______,_____,_____的变化，后面接___________即need________sth.Teachersneed_______(了解)aboutthestudents.He_______togohomenow.

mustneedn’tNeedteenagerslearntosurftheInternetmustneedn’t人称时态数不定式todotolearnneeds小结●need的用法★need的词性判断要准。实义动词：needtodo用_______提问或否定；Doyouneedto...?/don'tneedtodo...needdoingsth表被动=needto_________；needn’t为_______后接_________You_____gettherebybus.Adon'tneedBneedn'ttoCdon'tneedtoDneed助动词bedone情态动词动词原形C小结典型例题解析【例3】—WhereisJack，please?—He______beintheclassroom.A.canB.needC.wouldD.must【例2】—CouldIlookatyourpictures?—Yes,ofcourseyou_________.

A.couldB.canC.willD.mightBD【例4】TheboysaidhehadtospeakEnglishinclass，buthe

speakitafterclass.

A.couldB.didn'thavetoC.mightD.shouldn't典型例题解析B【例5】Thesebooks____outofthereadingroom.Youhavetoreadthemhere.

A.can'ttakeB.mustbetakenC.cantakeD.mustn'tbetakenD1.______Iopenthewindow?It'shothere.A.MustB.ShallC.WillD.Would2.GoandaskMrLiu.He_________tellyou.A.mayB.canC.wouldD.could3.___youpleasetellmethetimeplease?A.ShallB.WillC.MustD.Might4.—______Icomeupwithalltheideas?—No,you_________.A.Must,mustn'tB.Need,needC.Must,don'thavetoD.Must,don't5._________IspeaktoMrGreen，please?A.WillB.CouldC.MustD.Would限时训练BABCB11.—Pleasedon'tmakeanynoiseinthereadingroom.—_________A.Sorry,Iwon't.B.Sorry,Ican't.C.Yes,Iwon't.D.OK,Ididn't.12.—MustIreturnyourdigitalcameratomorrow.—No,you_________.A.mustn'tB.maynotC.needn'tD.won't13.—Wouldyoul