海南省中考英语二轮复习语法突破课件情态动词

情态动词中考考点讲练考点1情态动词的基本用法(5年4考)情态动词有词义，但不能单独作谓语，必须和动词原形一起构成谓

语。除have

to外，情态动词一般无人称和数的变化，后接动词原形。考点含义及用法例句can(1)表能力，意为“能，会”，可与be

able

to相互转化，can’t意为“不能，不会”，为can的否定形式He

can

play

the

guitar.(2)表请求，意为“可以”，多用于口语Mr

Zhang，

can

I

talk

to

you

about

my

study

plan？(3)表允许，意为“可以”You

can

park

here.考点含义及用法例句could(1)表能力：①意为“能，会”，can的过去式，表示过去的能力②couldn’t意为“不能，不会”，为could的否定形式The

clever

girl

could

read

by

herself

when

she

was

three.He

helped

me

with

the

problems

that

I

couldn’t

work

out.(2)表请求：could在疑问句中表示委婉的请求肯定回答：Yes./Sure./Certainly./Of

course./No

problem./With

pleasure.否定回答：Sorry，

I’m

afraid

not./Sorry，

I

can’t./I’d

love/like

to，

but…Could

you

please

help

me

with

my

English？考点含义及用法例句must表必须和应当，意为“必须，一定要”。由must引出的一般疑问句，肯定回答常用“Yes，主语＋must.”；否定回答常用“No，主语＋needn’t/don’t/doesn’t

have

to.”，不能用mustn’t来回答【拓展】mustn’t为must的否定形式，意为“一定不要，禁止”We

must

take

action

to

protect

the

wild

animals.考点含义及用法例句may(1)表请求，意为“可以”，比can/could更正式，其过去式为mightMay

I

come

in？(2)表允许You

may

come

if

you

wish.(3)表祝愿，用于祈使句，用法和wish相似May

your

dream

come

true！might表请求，语气比may更委婉Might

I

ask

you

a

question？考点含义及用法例句need表必要性和需要，意为“需要”，主要用

于否定句和疑问句中。肯定答语用“主语

＋must.”或“主语＋have/has

to.”，否

定答语用“主语＋needn’t.”或“主语＋

don’t/doesn’t

have

to.”【拓展】needn’t为need的否定形式，意为

“没必要”—Need

I

come

tomorrow？—Yes，

you

must/have

to./No，youneedn’t/don’t

have

to.考点含义及用法例句should(1)表建议或劝告，意为“应该”We

should

develop

good

eating

habits.(2)表征询建议，常用于疑问句中When

should

we

begin

our

discussion？(3)表示要求，用于第三人称，意为“必

须，应该”Students

should

wear

uniforms

at

school.考点含义及用法例句shall(1)表请求或征求对方建议，多用于第一人称，构成疑问句Shall

I

turn

on

the

lights？(2)表决心、警告和命令，多用于第二、三人称You

shall

not

bring

your

mobile

phone

to

the

classroom

during

the

exam.考点含义及用法例句will(1)表意愿或请求，will用于疑问句，常用于第二人称，won’t为will的否定形式Will

you

give

me

some

advice？(2)would为will的过去式，表示自愿做或主动提出做某事Mary

said

she

would

go

with

me.hadbetter表建议，意为“最好”，多用于第二人称，否定形式为had

better

notYou

had

better

be

quiet

in

the

library.have

to表必须，意为“不得不”，多表示客观需要，否定形式为don’t

have

toI

have

to

be

off

now.My

mom

is

waiting

for

me.☞

活学巧练单项选择1.(2025·海南29题)—Do

you

think

we

go

to

the

same

high

school？—I

hope

so.

A.mustB.mayC.should2.(2024·海南25题)—

I

go

out

with

my

friend

now，Dad？—I’m

afraid

you

have

to

finish

your

homework

first.A.CanB.ShouldC.MustB

A

3.(2023·海南30题)Mary，

you

clean

the

windows

now.

Your

brother

has

cleaned

them.A.can’tB.needn’tC.mustn’tB

4.(2021·海南31题)—How

long

can

I

keep

these

books？—According

to

the

library

rules，

you

return

them

within

7

days.A.mustB.mightC.could5.(2025·白银改编)

you

turn

down

the

TV，

please？I’m

trying

to

work.A.CouldB.MustC.MightA

A

6.(2025·扬州改编)—Will

you

be

able

to

finish

the

work

in

time？—I

promise

anything，

but

I’ll

do

my

best.A.can’tB.shouldn’tC.couldn’tA

考点2情态动词表推测(2022.30)考点含义及用法例

句must表示非常有把握的肯定推测，意为

“一定，肯定”(100％的可能性)She

must

be

tired

after

a

very

long

journey.could表推测，意为“有可能，也许”(20％～80％的可能性)，语气缓和、较委婉They

could

forget

to

invite

you.考点含义及用法例

句may表推测，意为“有可能，也许”，用于肯定句，表示把握不大的推测He

may

know

the

answer.might表推测，意为“有可能，也许”，可能性比may小，语气缓和、较委婉He

might

be

right.考点含义及用法例

句can’tcan’t为can的否定形式，表示否定

推测，语气强烈，意为“一定不，

不可能”，可能性几乎为零That

can’t

be

Jane.

I

saw

her

in

the

library

just

now.【总结】表肯定推测：must(100％)＞could/may(20％～80％)＞might表否定推测：can’t＞may

not＞might

not☞

活学巧练单项选择1.(2022·海南30题)The

boy

be

Tom.

I

saw

him

reading

in

the

library

just

now.A.shouldn’tB.can’tC.needn’t2.(2025·绥化)He

know

the

secret.I

haven’t

told

anyone

about

it.A.can’tB.needn’tC.mustn’t3.

—You

be

very

tired

after

finishing

all

of

those

hard

jobs.—Yes.I’ll

take

a

good

rest

and

make

myself

comfortable.A.mayB.may

notC.mustB

A

C

4.

It

be

the