情態(tài)動詞can-may-must-need及練習(xí)

情態(tài)動詞can-may-must-need及練習(xí)情態(tài)動詞can-may-must-need及練習(xí)情態(tài)動詞can-may-must-need及練習(xí)資料僅供參考文件編號：2022年4月情態(tài)動詞can-may-must-need及練習(xí)版本號：A修改號：1頁次：1.0審核：批準(zhǔn):發(fā)布日期：考點二：情態(tài)動詞can的用法，表示某人能做某事?？隙ň洌褐髡Z+can+動詞原形+其他Icanplaythepiano.否定句：主語+can+not(can’t)+動詞原形+其他Icannot(can’t)playthepiano.一般疑問句：Can+主語+動詞原形+其他Canyouplaythepiano特殊疑問句：特殊疑問詞+can+主語+動詞原形+其他Whatcanyouplaycanplaythepiano情態(tài)動詞must,

can,

could,

may,

might

表推測的用法：情態(tài)動詞中的must,

can,

could,

may,

might都表推測。其中must的可能性最大，can

/

could次之，may

/

might最小。具體用法如下：

1.

must的用法（1）表示推測“可能性”時，意思是“一定、準(zhǔn)是”，語氣較肯定，較有把握。

He

must

be

American.

=

It

is

certain

that

he

is

American.

他準(zhǔn)是個美國人。

（2）must表推測只能用于肯定句。如果要表示“一定不、肯定不”的意思時，應(yīng)用can`t,如詢問某種可能時，應(yīng)用can。

He

must

know

my

address.

他肯定知道我的地址。（一定）

He

can`t

know

my

address.

他肯定不知道我的地址。（一定不）

Can

he

know

my

address

他知道我的地址嗎（詢問可能性）

（3）must表示推測時，可以推測現(xiàn)在/正在發(fā)生的動作/過去發(fā)生的動作。

He

must

have

a

car

now.

（現(xiàn)在）他一定有輛小汽車。

He

must

be

doing

his

exercises

in

the

classroom.（正在進(jìn)行）他一定在教室里做練習(xí)。

He

must

have

finished

the

work.（過去發(fā)生）他一定已完成了工作。

注：must表示推測時很少用于將來的情況。一般不用He

must

come

tomorrow.可用It`s

certain

/

I`m

sure

that

he

will

come

tomorrow.

（4）在反意疑問句中，當(dāng)附屬部分含有表示推測意義的must時，疑問部分的助動詞應(yīng)與must后面的動詞在非推測情況下的用法保持一致。

He

must

be

a

worker,

isn`t

he

（現(xiàn)在）他準(zhǔn)時個工人，是嗎

It

must

have

rained

last

night,

didn`t

it

（過去）昨晚一定下雨了，是不是

You

must

have

learned

English

for

many

years,

haven`t

you

（完成時）你一定學(xué)了好多年英語，是嗎

2.

can

/

could的用法（1）can表示推測“可能性”時，往往用于否定句或疑問句。Can`t“一定不”，語氣很肯定。can在疑問句中意思是“會、可能”。

He

can`t

be

at

home.

=

It

is

impossible

that

he

is

at

home.

他一定不在家。（2）can

/can`t后可接進(jìn)行時/完成時，表示對現(xiàn)在發(fā)生的動作或過去發(fā)生的動作進(jìn)行推測。

They

can`t

be

reading

in

the

library.

他們一定不在圖書館讀書。

He

can`t

have

gone

to

Shanghai

for

I

saw

him

a

minute

ago.

他不可能去了上海，我剛才還看見他。

It`s

so

late.

Where

can

she

have

gone

天晚了，她可能去哪兒了呢（3）在反意疑問句中，當(dāng)陳述部分含有表示推測意義的can`t時，疑問部分的助動詞應(yīng)與can`t后面的動詞在非推測情況下的用法保持一致.

He

can`t

be

a

teacher,

is

he

他不是教師，是嗎

She

can`t

have

finished

her

homework,

has

she

她一定沒有完成家庭作業(yè)，是不是（4）could可用于表示某事有可能發(fā)生或可能是事實。

Don`t

eat

it.

It

could

be

poisonous.

不要吃它，可能有毒。

The

plane

could

be

delayed

by

fog.

飛機(jī)可能會因為霧晚點。（5）could還可以用于表示客氣、委婉、禮貌的請求語氣。

Excuse

me,

could

you

tell

me

the

way

to

the

bus

station

Could

you

help

me

（6）couldn`t表示否定推測，表示某事不可能真實，或由于特定事實或環(huán)境某事肯定不會發(fā)生。

It

couldn`t

possibly

be

poison.

這不可能是毒藥。

注：有時與形容詞的比較級連用強(qiáng)調(diào)某人或某物不可能再更多地具有某種屬性。

You

couldn`t

be

more

wrong.

你真是大錯特錯。

I

couldn`t

be

happier.

我簡直是幸福極了。

3.

may和might的用法

（1）

may,

might表示推測“可能性”時，意思是“可能”、“也許”，語氣沒有must肯定。

He

may

/

might

be

American.

=

It

is

possible

that

he

is

American.

他可能是個美國人。

注：might不表示過去時態(tài)，只是語氣上比may更委婉，表示的可能性更小。（2）may,

might表推測時，可以用于否定句，意思是“可能不、也許不”，但不用于疑問句。

He

may

/

might

not

be

at

home.

他也許不在家。

（3）may,

might可以推測現(xiàn)在正在發(fā)生的動作或過去發(fā)生的動作。

He

may

/

might

be

sleeping

now.

現(xiàn)在）他可能正在睡覺。

The

boy

may

/

might

not

be

watching

TV

at

home.

（現(xiàn)在）這個男孩可能沒在家看電視

These

students

may

/

might

have

seen

the

film

before.（過去）這些學(xué)生以前可能看過這部電影。

（4）may,

might還可以推測將來的情況。

I

think

we

should

take

raincoat

with

us,

it

may

rain.

我想我們應(yīng)該帶上雨衣，可能要下雨了。

She

might

not

come

this

afternoon.

她今天下午可能不來了。

Exercises:

Complete

the

sentences

using“must”or“can`t”.

1.

I

have

tried

to

call

him

at

the

office,

but

there

is

no

reply.

He

be

at

home.

2.

They

have

bought

a

new

car.

They

have

a

lot

of

money.

3.

She

is

carrying

a

Japanese

newspaper.

She

be

Chinese.

4.

He

goes

abroad

a

lot,

He

have

an

important

job.

5.

She

is

a

professor

at

the

university.

She

be

very

clever.

6.

She

is

acting

in

a

Shakespeare

play

tomorrow.

She

be

an

actress.

【隨堂練習(xí)】一.

選擇填空1.

I

thought

you

______like

something

to

read.

So

I

have

brought

you

some

book.A.

ought

B.

might

C.

could

D.

must

2.

–That

man

must

be

Sarah`s

husband.

--No,

he______

be

her

husband.

She

is

still

single.

A.

can`t

B.

mustn`t

C.

may

not

D.

ought

to

3.

Peter

______come

with

us

tonight,

but

he

isn`t

very

sure.

A.

must

B.

may

C.

can

D.

will

4.

–What

______it

be

--It______

be

a

mail

box,

for

it

is

moving.

It______

be

a

car.

A.

can;

can`t;

must

B.

can;

can;

must

C.

can;

mustn`t;

must

D.

must;

mustn`t;

can

5.

–Look,

someone

is

coming.

Guess

______.

--Jack.

He`s

always

on

time.

A.

who

can

it

be

B.

who

he

may

C.

who

he

can

be

D.

who

it

can

be

6.

–I

saw

Mary

in

the

library

yesterday.

--You______

her.

She

is

still

abroad.

A.

mustn`t

see

B.

can`t

have

seen

C.

mustn`t

have

seen

D.

couldn`t

see

7.

David,

you_____

play

with

the

valuable

bottle,

you

_____break

it.

A.

won`t;

can`t

B.

mustn`t;

may

C.

shouldn`t;

must

D.

can`t;

shouldn`t

8.

Susan

refuses

to

marry

Jack

now.

She

_____her

mind.

A.

must

change

B.

should

have

changed

C.

must

have

changed

D.

would

have

changed

9.

Sue______

come

together

with

us

tonight,

but

she

isn`t

very

sure

yet.

A.

must

B.

may

C.

need

D.

will

10.

Aunt

Margaret_____

the

rain,

otherwise

she

would

have

arrived

here

by

now.

A.

must

have

missed

B.

should

have

missed

C.

had

missed

D.

might

miss

1．WhoisthemanoverthereIsitMr.Wu—It________him,butIamnotquitesure.A.maybe B.maybe C.is D.mustbe2．Somepeoplefeelsickwhentheyreadabookinacaroronaboat．A．must B．should C．may D．need3．---MustIgotomedicalschoolandbedoctorlikeyou，Dad---No,you__________,son.You’refreetomakeyourowndecision.A.can’t

B.mustn’t

C.shouldn’t

D.don’thaveto考點：考查情態(tài)動詞辨析。4．Youbehungryafterthelongwalk.Helpyourselftosomecakes.A.shouldB.mustC.needtoD.oughtto5．Couldyouplease_____thepianosoloudlyYourbrotherishavingarestnow.A.nottoplay

B.notplay

C.don’tplay

D.tonotplay6．—ThatpinkT-shirtwithPingAn’spictureonit______belongtoMissMa.Sheadmireshimalot.—No,it_____behers.Shehatespinkcolour.A.must,can’tB.may,can’tC.can,mustn’tD.must,mustn’t7．---MustIansweritinEnglish---No,you_______.YoucanuseChinese.A.shouldn’t B.can’t C.mustn’t D.needn’t8．----________wegoswimminginXishuanghuLaketoday----Oh,no.It’s________coldtoswimonsuchdays.Iwillcatchacold.A.Will;very B.Will;too C.Shall;very D.Shall;too9．Peoplewhodrinkwine____________todriveafterMayDay.’tallow’tallowed’tallowD.mustn’tbeallowed10．—Iwasaskedtoattendthemeetingbeforeeight.—Oh,you________.I'msorryfornottellingyouthatwehavechangedtheplan.A.mustB.can'tC.mayD.needn't11．Youhaveworkedforalongtime.You____________beverytired.A.mustB.can’tC.couldD.mustn’t12．---CanIaskyouaquestion---No,you________.You_______toaskmequestionsduringexams.A.can’t,mustn’tB.can’t,aren’tsupposedC.can,aren’tsupposed,don’thave13．What______youdoifyou_______inGrade7nowA.could,areB.would,areC.could,wasD.would,were【答案】D14．ThisCD_______belongtoBill.Ithashisnameonit.A.mustn’tB.mightC.can’tD.must【答案】D15．Youdriveyourcarsofast.It’sdangerous.A.wouldn’tB.shouldn’tC.couldn’tD.mightn’t【答案】B16．------Shallwemeetatthestationat8-------Infacttrain_______until.’t;doesn’tleave’t;leaves’t;won’tleave’t;willleave【答案】C17．---Mum,_______IwatchTV---No.Unlessyourhomework_______________.A.could;finishesB.can;willfinishC.may;isfinishedD.can;willbefinished【答案】C【18．–Look!Amaniscuttingatreeonthemoon.--It______betrue.Theteachersaidthereisnoaironthemoon.A.can’tB.maynotC.shouldn’tD.mustn’t【答案】A19．—_____youpleaseplaytenniswithme—Sorry,I_____.A.Could;can’t B.Could;couldn’tC.Can;don’t D.Can;couldn’t【答案】A20．---Ibrokethewindow.---You___playfootballnearthewindow. B.shouldn’t C.hadbetter 【答案】B21．—____________youswim —Yes，butI’mnotagoodswimmer.A.Can B.May C.Need D.Must【答案】A22．—IsthewomanoverthereMissWhite—It______beher.She’sgonetoHangzhou.A.must B.can’t C.needn’t D.may【答案】B23．—Canyourfriendsing--______.,Ican,hecan,shecan,Ican’t【答案】B。24．----WhereisKate

--_______sheiscleaningtheclassroom.

A.May

B.Maybe C.Maybe

D.Can【答案】C【解析】25．She________cometotheparty,butIamnotquitesure.A.would B.should C.might D.must【答案】C【26．---AreyoucomingtoDavy’sparty,Kate---I’mnotsure,I________gotothemoviesinstead.A.would B.shouldC.might D.must【答案】C27．It'sthelibrary!Soyou_______makeanynoisehere.A.mustn't B.won't C.need D.may【答案】A【解析】28．Lookatthesign!Itsays“NoSmoking!”You________smokehere.It’sdangerous.A.mustn’t B.oughtnotto C.needn’t D.don’thaveto【答案】A 29．-MayIwatchTVnow,Mum-No,you_______.You_______doyourhomeworkfirst.A.don't;must B.don't;can't C:can't,must D.can't;can【答案】C30．—There’ssomebodyatthedoor.Who______itbeIsitthepostman—No,it______behim.It’sjustseveno’clock.It’stooearly.A.may,can’t

B.will,won’t

C.may,mustn’t

D.must,maynot【答案】A31．--____________yousinganEnglishsong---Yes,Ican.A.Can B.May C.Must D.Need【答案】A32．—IsJohncomingbytrain—Heshould,buthenot.Helike