精選優(yōu)質文檔-----傾情為你奉上精選優(yōu)質文檔-----傾情為你奉上專心---專注---專業(yè)專心---專注---專業(yè)精選優(yōu)質文檔-----傾情為你奉上專心---專注---專業(yè)情態(tài)動詞（一）情態(tài)動詞的定義:

情態(tài)動詞表示說話人對某一動作或狀態(tài)的態(tài)度。（二）情態(tài)動詞的特點1.情態(tài)動詞有一定的詞義。2.情態(tài)動詞不能單獨做謂語，它必須和其他動詞的原形一起構成謂語。3.情態(tài)動詞沒有人稱，數(shù)的變化。（三）情態(tài)動詞的結構和意義1.情態(tài)動詞的基本句型肯定句：主語+情態(tài)動詞+動詞原形+......否定句：主語+情態(tài)動詞+not+動詞原形+......疑問句：情態(tài)動詞+主語+動詞原形+......2.情態(tài)動詞的意義must“必須”；can/could“能，會”；may/might“可以”；should“應該”；would“愿，要”；haveto“不得不”；need“需要”（四）情態(tài)動詞的基本用法1.can(could主要指過去時間)表示人或物本身所具有的能力，意為“能，能夠，會”:Twoeyescanseemorethanone.

兩只眼比一只眼看得清。表示可能（理論上或是邏輯判斷上）Hecan’t(couldn’t)haveenoughmoneyforanewcar.

他不可能有足夠的錢買新車。表示允許：CanIhavealookatyournewpen?

我可以看一看你的新鋼筆嗎？Heaskedwhetherhecouldtakethebookoutofthereading-room.他問他可不可以把書帶出閱覽室。表示對現(xiàn)在動作或狀態(tài)的猜測，主要用于否定句和疑問句中或感嘆句中:Hecan’t(couldn’t)beoversixty.

他不可能超過六十歲。could表示比can更委婉客氣的提出問題或陳述看法，指的是現(xiàn)在時間。Can(Could)youlendmeahand?

幫我一把好嗎？can和beableto的用法比較主語都可用來表示“有能力”，beableto強調通過努力而做到的。Adeercan/isabletorunveryfast.beableto可以表示“在過去某人能夠做某事且做到了”。Allthepeoplewereabletorunoutofbuildingfromthebigfire.2.may(might)

1）表允許，詢問或說明一件事可不可以做，might指過去時間；但在疑問句中might也可指現(xiàn)在時間，語氣比may更委婉。

May(Might)Iaskforaphotoofyourbaby?

我可以要一張你寶寶的照片嗎？肯定回答：may,或Yes,please./Certainly./Sure./Ofcourse.否定回答根據(jù)說話人的語氣由強到弱分：mustnot(mustn’t)（禁止）/hadbetternot（最好別）/maynot（不行）2)may表可能,但所表示的可能性不如can所表示的那樣肯定。might可以指過去時間，也可以指現(xiàn)在時間，但語氣更加不肯定。Hemaybeathome.

他可能在家。

Theymightbehavingameeting,butI’mnotsure.

他們有可能在開會，不過我不肯定。3.must（haveto表示客觀需要）1）表示“必須”（主觀看法）時，用于肯定句或疑問句；用于否定句時表示“禁止”。Wemustdoeverythingstepbystep.

我們一切都必須循序漸進地做。2）表示揣測。意為“想必、準是、一定”等，只用于肯定句。

Hemustbeill.Helookssopale.

他準是病了。他的臉色蒼白。3)must的疑問句，肯定回答用must，否定回答用needn’t或don’thaveto。4.shall1）在疑問句中用于征求對方意見，主要用于第一人稱(在英國英語中，也用于第三人稱)，其意為“要不要”、“…好嗎”：ShallIgetyouachairforyou?要不要我給你拿把椅子來?2）在陳述句表示說話者的允諾、告誡、威脅、命令、規(guī)定、必然性等，主要用于第二、三人稱：Youshallsufferforthis.你會為此事吃苦頭的。(表威脅)Thatdayshallcome．那一天一定會來。(表必然性)Tellhimthatheshallhavethebooktomorrow.告訴他這本書明天給他。(表允諾)【注】有時用于第一人稱，表示決心：Ishallreturn.我一定回來。(表示決心)5.should

1）表責任或義務，意為“應該”，用于各種人稱。

Youshouldbepolitetoyourteachers.

你對老師應該有禮貌。2）表推測，意為“想必一定、照說應該、估計”等。

Thefilmshouldbeverygoodasitisstarringfirst-classactors.

這部新電影是一流演員主演的，估計拍得很好。

6.will1）表意愿,用于各種人稱。Iwilldoanythingforyou.

我愿為你做任何事。2)will在疑問句中用于第二人稱，表示詢問對方的意愿或向對方提出請求Willyouclosethewindow?

請你把窗戶關上好嗎？7.would

1）will的過去式，表示過去時間的“意志、意愿”。

IsaidIwoulddoanythingforyou.

我說過我愿意為你做任何事。

2）would用于現(xiàn)在時間，表示比較委婉地提出請求、建議或看法。

Wouldyoulikeanotherglassofbeer?

再來杯啤酒好嗎？

8.need1)need作為情態(tài)動詞，主要用于否定句疑問句；作為實義動詞可用于肯定句，否定句或疑問句中。Youneedn’ttelephonehimnow.

你現(xiàn)在不必打電話給他。2)回答由need引起的問句時，肯定回答一般用must，否定回答是用needn’t--NeedIcome?

--Yes,youmust.

--我需要來嗎？

--需要。情態(tài)動詞練習題(

)

1.

John___

come

to

see

us

tonight,

but

he

isn't

very

sure

yet.A.

may

B.

canC.

has

to

D.

must(

)

2

.They

___

do

well

in

the

exam.A.

can

be

able

to

B.

be

able

toC.

can

able

to

D.

are

able

to(

)

3.

-May

I

take

this

book

out?-No,

you___.A.

can't

B.

may

not

C.

needn't

D.

aren't(

)

4.

You___

go

and

see

a

doctor

at

once

because

you're

got

a

fever.A.

can

B.

must

C.

dare

D.

would(

)

5.

-Can

you

speak

Japanese?-No,

I____.A.

mustn't

B.

can't

C.

needn't

D.

may

not(

)

6.

-He___

be

in

the

classroom,

I

think.-No,

he

___

be

in

the

classroom.

I

saw

him

go

home

a

minute

ago.

A.

can;

may

not

B.

must;

may

not

C.

may;

can't

D.

may;

mustn't(

)

7.

-Shall

I

get

one

more

cake

for

you,

Dad?-Thanks,

but

you___,

I've

had

enough.A.

may

not

B.

must

not

C.

can't

D.

needn't(

)

8.

Even

the

top

students

in

our

class

can't

work

out

this

problem,

so

it

be

very

difficult.A.

may

B.

must

C.

can

D.

need(

)

9.

He

isn't

at

school.

I

think

he

___

be

ill.

A.

can

B.

shall

C.

must

D.

has

to(

)10.

___

I

take

this

one?A.

May

B.

Will

C.

Are

D.

Do(

)

11.

The

children___

play

football

on

the

road.A.

can't

B.

can

C.

mustn't

D.

must(

)

12.

You

___

be

late

for

school

again

next

time.A.

mustn't

B.

needn'tC.

don't

have

to

D.

don't

need

to(

)

13.

-Must

I

do

my

homework

at

once?-No,

you___.

A.

needn't

B.

mustn't

C.

can't

D.

may

not(

)

14.

His

arm

is

all

right.

He___

go

and

see

the

doctor.A.

has

not

to

B.

don't

have

toC.

haven't

to

D.

doesn't

have

to(

)15.

He

had

to

give

up

the

plan,

___

he?A.

did

B.

didn't

C.

does

D.

doesn't(

)

16.

They

had

to

walk

here,

___

they?A.

mustn't

B.

did

C.

didn't

D.

hadn't(

)

17.

He

had

better

stay

here,

___

he?A.

didn't

B.

don't

C.

hadn'tD.

isn't(

)18.

You'd

better___late

next

time.A.

not

to

be

B.

not

be

C.

won't

be

D.

don't

be(

)19.

You'd

better

___

your

hair

___

once

a

month.A.

had;

cut

B.

had;

cuttedC.

have;

cut

D.

have;

cutted(

)

20.

You___

ask

that

man

over

there.

Maybe

he

knows

the

way.

A.

had

better

not

to

B.

had

not

better

C.

had

better

D.

had

better

not(

)

21.

-Shall

we

go

and

visit

the

History

Museum

next

Sunday?A.

Here

you

are

B.

Sorry,

I

can't

C.

Yes,

please

D.

Let

me

try(

)

22.

-Why

don't

you

ask

Mike

to

go

with

us?-Thanks,

___.A.

I

will

B.

I

won't

C.

lean

D.

I

may(

)

23.

-___

I

take

the

newspaper

away?-No,

you

mustn't.

You____read

it

only

here.A.

Must;

can

B.

May;

can

C.

Need;

must

D.

Must;

must(

)

24.

Excuse

me.

___

you

please

pass

me

that

cup?A.

Do

B.

Should

C.

Would

D.

Must(

)

25.

___

you

like

to

have

another

try?A.

Could

B.

Will

C.

WouldD.

Do(

)

26.

-Would

you

like

to

go

boating

with

us?-Yes,

___.A.

I'd

like

B.

I

want

C.

I'd

like

to

D.

I

do(

)

27.

You___

worry

about

your

son.

He

will

get

well

soon.A.

needn't

B.

can't

C.

mustn't

D.

have

to(

)

2

8.The

poor

man

needs

our

help,

___

he?A.

need

B.

needn't

C.

does

D.

doesn't(

)

29.

-Must

we

do

our

homework

first?-No,

you___.

You

may

have

a

rest

first.A.

mustn't

B.

needn't

C.

may

not

D.

can't()30..–Iwastoldtobeherebeforeeight.--Oh,you____.I’msorryfornottellingyouthatwehavechangedtheplan.A.mustB.can’tC.may