情態(tài)動(dòng)詞表示推測(cè)

情態(tài)動(dòng)詞表示推測(cè)Unit5學(xué)習(xí)目標(biāo)掌握情態(tài)動(dòng)詞must,may,might,can,could來(lái)表示推測(cè)意思推測(cè)程度must一定，肯定100%的可能性maymight/could有可能，也許20%---80%的可能性can’t不可能，不會(huì)可能性幾乎為零表示推測(cè)的情態(tài)動(dòng)詞有must,may,could,might,can。

must表示說(shuō)話人對(duì)事物的推測(cè)可能性的程度非常大，意為“一定；準(zhǔn)是”；表示有把握的否定推測(cè)時(shí)用can’t，意為“不可能”。如：1.Ican’tfindmykeys.Imusthaveleftthemathome.2.--IssheMary?--Thatcan’tbeher.She’sinhospital.grammar

can表示“可能”，常用于否定句、疑問(wèn)句中。could為can的過(guò)去式，表示推測(cè)的語(yǔ)氣較can弱。如：--Canthemantherebeourmathteacher?--Hemaybe,butIamnotsure.

may意為“也許”。might為may的過(guò)去式，表示說(shuō)話人對(duì)現(xiàn)在或?qū)?lái)不太確定的可能性的推測(cè)。如：LiMingmightgethereintime,butIamnotsure.GuessinggameHemust/might/couldbe______.Canyouguesswhatitis?

Itcouldbe_________________.Italsomightbe______________.awhitevasetwofacesItcouldbe______.Italsomightbe___________.Canyouguesswhatitis?adogtwogirlsCouldAbebiggerthanB?Infact,AandBmustbe___________________.Whichoneisbigger,AorB?ABthesamesizeNo.Howmanypeoplearethere?1.Thishook________beCarla’s.Hernameisonthebook.A.mightB.couldC.mustD.can’t2.Jack’sbikeisblue,sothisyellowone____behis.A.mustn’tB.can’tC.couldn’tD.mightn’tChoosethebestanswer.3.Theguitar________belongtoAlice.Onlysheplaystheguitarhere.A.couldB.mustC.can’tD.can4.-Whatdoyouthink“upset”mean?-I’mnotsure.It________meansad,A．mustB．canC．mightD．can’t5.I’llhaveatest______writingnextweek.A．a(chǎn)tB．ofC．onD．in6.Thisbackpackmustbe________.Isawhercarryityesterday.A．LucysB．LucyC．Lucys’D．Lucy’s1.Ididn’thearthephone.I___asleep.A.mustbeB.musthavebeenC.shouldbeD.shouldhavebeen2.Mary____beinParis.Isawherintownonlyafewminutesago.A.mustn’tB.shouldn’t

C.can’tD.maynotChoosethebestanswer.3.Peter____comewithustonight,butheisn’tverysureyet.A.mustB.mayC.canD.will4.Ithoughtyou____likesomethingtoread,soIhavebroughtyousomebooks.A.mayB.mightC.couldD.must1.-AreyougoingtoBeijingbyplane?-It’sfast,butexpensive.SoIamnotsure.I____takeatrain.(07江西)A.shouldB.mayC.mustD.will2.-IsJohncomingbytrain?(07蘇州)

-Heshould,buthe____not.Helikesdrivinghiscar．A.must

B.can

C.may

D.need中考真題鏈接3.

-____Iswiminthatriver?(07內(nèi)江市)-No,you__.It’sdangeroustoswiminit.A.Must,can’t

B.Can,maynot

C.May,mustn’t

4.

Thestudents____playbasketballafterschooleveryday.(07內(nèi)江市)A.allowto

B.areallowedto

C.wereallowedto中考真題鏈接1.這本書(shū)一定是李雷的。他正在找這本書(shū)。

ThisbookmustbeLiLei’s.Heislookingforthebook.

2.這個(gè)盒子可能是韓梅的。

TheboxcouldbeHanMei’s.

Translateandwritedown.3.這個(gè)玩具熊(toybear

)可能是約翰