情態(tài)動(dòng)詞can may must need及練習(xí)

情態(tài)動(dòng)詞canmaymustneed及練習(xí)情態(tài)動(dòng)詞canmaymustneed及練習(xí)情態(tài)動(dòng)詞canmaymustneed及練習(xí)資料僅供參考文件編號(hào)：2022年4月情態(tài)動(dòng)詞canmaymustneed及練習(xí)版本號(hào)：A修改號(hào)：1頁次：1.0審核：批準(zhǔn):發(fā)布日期：考點(diǎn)二：情態(tài)動(dòng)詞can的用法，表示某人能做某事?？隙ň洌褐髡Z+can+動(dòng)詞原形+其他Icanplaythepiano.否定句：主語+can+not(can’t)+動(dòng)詞原形+其他Icannot(can’t)playthepiano.一般疑問句：Can+主語+動(dòng)詞原形+其他Canyouplaythepiano特殊疑問句：特殊疑問詞+can+主語+動(dòng)詞原形+其他Whatcanyouplaycanplaythepiano情態(tài)動(dòng)詞must,

can,

could,

may,

might

表推測的用法：情態(tài)動(dòng)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(shí)，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(gè)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(shí)，應(yīng)用can`t,如詢問某種可能時(shí)，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(shí)，可以推測現(xiàn)在/正在發(fā)生的動(dòng)作/過去發(fā)生的動(dòng)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(shí)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(shí)，疑問部分的助動(dòng)詞應(yīng)與must后面的動(dòng)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(shí)個(gè)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(shí)）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(shí)，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(huì)、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(shí)/完成時(shí)，表示對(duì)現(xiàn)在發(fā)生的動(dòng)作或過去發(fā)生的動(dòng)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(shí)，疑問部分的助動(dòng)詞應(yīng)與can`t后面的動(dòng)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(shí)。

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(huì)因?yàn)殪F晚點(diǎn)。（5）could還可以用于表示客氣、委婉、禮貌的請(qǐng)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(shí)，或由于特定事實(shí)或環(huán)境某事肯定不會(huì)發(fā)生。

It

couldn`t

possibly

be

poison.

這不可能是毒藥。

注：有時(shí)與形容詞的比較級(jí)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(cuò)特錯(cuò)。

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(shí)，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(gè)美國人。

注：might不表示過去時(shí)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(shí)，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(dòng)作或過去發(fā)生的動(dòng)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(gè)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(diǎn)：考查情態(tài)動(dòng)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