暑期專題十-----情態動詞canmaymust的用法情態動詞的定義：情態動詞有詞義，但它不能單獨作謂語，它必需和其他動詞一起構成謂語。情態動詞沒有人稱和數的變化；它的后面必需跟動詞原形。情態動詞的種類：情態動詞 詞義 否定形式 詞義can 能夠，會 can’t 不能，不會 could 能夠，會 couldn’t 不能，不會may 可以 ／ ／must 必需 mustn’t 不允許，不能shall 將，要 ／ ／should 應當 shouldn’t 不應當need 需要 needn’t 不必would 將會，愿 wouldn’t 不會，不愿一、can基本用法1.表示力量,意為“能、會”。CanHanMeispeakEnglish?CanLisaplaythepiano?2.表示懇求或許可。Canyouhelpme?3.表示推想可能(確定句中“可能”，否定句中“不行能”)Hecanbeathomenow. Themooncan'talwaysbefull.二、may基本用法1.表示“懇求”MayIcomein?2.表示推想時，常用在確定句中，會有“I‘mnotsure”作為提示Hemaybeateacher.I'mnotsure.3.以may開頭的疑問句，其否定回答要用can’t/mustn't.MayIgohomenow?No,youcan't/mustn't.三、must基本用法1.表示“必需”、“肯定要”You

must

see

the

doctor.2.表示推想,意為“確定”、“肯定是”（只用在確定句中）Shemustbeateacher.3.否定句中mustn’t表示“禁止”“不允許”Youmustn’tsmokehere.4.以must開頭的疑問句，其否定回答要用needn’t/don'thaveto.MustIcleantheroom?No,youneedn't/don'thaveto.四、can/may/must表示推想的用法1.can確定句中，翻譯為“可能”，否定句中“不行能”；2.may確定句中，翻譯為“可能”，否定句中，翻譯為“可能不”；3.must確定句中“肯定是”記憶口訣：一肯(must)，一否(can't)，二不定(can/may)情態動詞專項練習1.The

children

______

play

football

on

the

road.

A.

needn't

B.

can

C.

mustn't

D.

must2.

—Must

I

do

my

homework

at

once?

—No,

you

______.

A.

needn't

B.

mustn't

C.

can't

D.

may

not3.

There's

no

light

on.

They

______

be

at

home.

A.

can't

B.

mustn't

C.

needn't

D.

shouldn't4.—Must

we

finish

all

these

articles

tonight?

—

No,

you__________.

A.

mustn’t

B.

haven’t

C.

not

have

to

D.

don’t

have

to5.Howdirtythetablesare!Theyneed________.(23屆新課標模擬五級)A.tocleanB.clean C.cleaning D.cleaned6.Thechildren____playfootballontheroad.(23屆新課標模擬五級)A.can't B.can C.mustn't D.must7.---You___parkhere！Lookatthesign,itsays“”Noparking.---Sorry,Ididn'tnoticethatsignjustnow.(23屆新課標五級)A.won't B.needn't C.mustn't D.couldn't8.We____paytogetintotheconcert.It'sfree.(22屆新課標南京五級)A.can't B.mustn't C.mightnot D.don'thaveto9.---Look,someoneleftabook.---Oh,yeah...Thisbook_____beKitty's.Onlyshelikestoreadthiskindofbooks.(22屆新課標模擬五級)A.can B.must C.may D.might10.Heisn'tatschool.Ithinkhe____beill.(23屆新課標模擬五級)A.can B.shall C.must D.hasto11.You'dbetter_____latenexttime.(23屆新課標模擬五級)A.nottobe B.notbe C.won'tbe D.don't12.---MustIreturnthebooktomorrow?---No,you______.Youcankeepitlonger.(23屆新課標南京五級)A.maynot B.can't C.needn't D.mustn't13.---Ihaveoinedthehealthclub.Howlongdoyouthinkitwilltakemetolosetenpounds?---Infact,Ithinkyou____loseweightstepbystep.(24屆新課標南京五級)A.hadbetterB.wouldratherC.prefertoD.even14.---Sallystillhasn'tfoundhercat.---I'msorrytohearthat.She____beverysad.(24屆新課標五級)A.need B.should C.must D.can15.---Hedrivespeopletoplaces.He'sgotataxi.---He_____beadoctor.He_____beadriver.(20屆新課標五級)A.can't;can B.must;can't C.can't;must D.mustn't;must16.We____paytogetintotheconcert.It'sfree.(21屆新課標五級)A.can't B.mustn't C.mightnot D.needn't17.---Excuseme,,mayIkeepthebookalittlelonger?---Sorry,you________returnittoday.(21屆新課標五級)A.must B.mustn't C.can D.can't二、用適當的情態動詞填空1.MustIborrowthebookwithmyIDcard?No,you________.2.________Iuseyourcar?Yes,you________.3.________Igohomenow?No,you_________stayhere.4.Mymotherisill.I_________stayathomeandlookafterher.5.________youlikesometea?6.You________takemoreexercise.7.________youtellmehowtogettotheQingyunPark?8.Theclock________tellusthetime.9.________youliketogofishingwithme?10.________weplayfootballthisafternoon?11.MustIstandup?No,you________.12.________Ispeaksomething?Yes,you________.13.________Ileavetheparknow?No,you_________stayhere.14.Mygrandmotherisill.I_________stayathomeandlookafterher.15.________youlikesomejuice?16.They________takemoreexercise.17.________youtellmethewaytothemuseum?18.Thewatch________tellustherighttime.19.________youliketogoboatingwithus?20.________weplaychessnextweekend?三、按要求改寫句子。1.Icanrunfast.(否定句)I________________fast.2.Youmustreturnthebooknow.（一般疑問句）________Ithebooknow?No,you________.3.Hecanplaybasketballwell.（一般疑問句）_______he______basketballwell?4.Theymusttakethebooksoutoftheroom.（否定句）They________________thebooksoutoftheroom.5.Heshouldgetupearly.(否定句)He_______getuplate.情態動詞專項練習答案CAADCCCDBCBCACCDA二、用適當的情態動詞填空1.needn’t/don’thaveto 2.Can/Could/May;can/may 3.Can;must 4.haveto 5.Would6.need/should 7.Can/could