第20練情態動詞could的用法1.一Could

I

go

out

withmy

friends

on

Sunday?A.Yes,youdon’t B.

Yes,

you

couldC.

Yes,

youcan D.

Yes,

youdo[答案]C

[解析]句意:一星

期日我能和我的朋友出去嗎?一是的，

你可以。Could

I

sth地表示"我可以做某事嗎?

"語氣比較委婉，表示請求允許,即請求別人允許自己做某事，答語要用can,與can't來回答，故答案為C。2.Millie

spoke

in

a

very

low

voice,

but

I

______

understand

what

she

said.

A.

could

B.

might

C.

can

D.

may[答案]

A

.

[解析]句意:Millie

用很低的聲音說話，但是我能明白她說了什么。could

能，是can的過去式;

might以，可能;

can能;

may可以，可能。根據句意和句中的but表示轉折可知，這里表示能夠明白”上句話中Millie

spoke

in...

用的是一一般過去時態，故這里也用過去時，選A。3.

It's

too

hot.

_______I

swim

in

the

lake?

一No,

you

__That's

too

dangerous!

A.Should;

can't

B.

Need;

mustn'tC.

Must,

needn't

D.

Could;

can't答案]

D

[解析]考查情態動詞的辨析。should

表示應該，應當”，must表示“必須”:

need意力需要”:

mustn't表示禁止,不允許":

seedn'1意為~不需要”，一般用來回答mu引導的疑問句:

could表示能，可以”，語氣更委換:

can't表示“不能。由句意”一太熱了，

我能在湖里游冰嗎?不，

不能。那太危險了!“可知，第一空用could對方提出請求;第二空表示禁止，故選D.4.

As

middle

school

students,

we______follow

the

public

rules

whereverwe

go.A.

wouldB.

shouldC.

mightD.

could[答案]

B[解析]句意:作為中學生，無論我們走到哪兒，都應該遵守公共紀律。情態動詞should"應該”，

would"將、會”、might"也許”could"

可能”。根據句意可知，句子強調責任與義務，所以選should。5.Ants

are

pretty

small.

You

might

think

that

they______be

rather

weak.Butwhat

you

might

notknow

is

that

ants

are

actually

very

strong

for

their

size.A.

needB.

can'tC.

must[答案]

C[解析]句意:螞蟻很小，你也許會認為他們一定相當弱小。可是你也許不知道的是:以螞蟻身體大小而言，它們實際上很強大。情態動詞need”必要”、can't"

不能、不會”、must"

必須”。情態動詞must與連系動詞be連用構成mustbe,意思是“定”，表示肯定推測。根據句意，故選答案C.6.We

don’tallowtaking

magazines

out,

butyou____

copy

the

article

you

needon

the

machine

over

there.A.canB.mustC.shouldD.would[答案]

A。[解析]句意;我們不允許將雜志帶出去,但是你可以在那邊的機器上復制你所需要的文章。因為can可以表示允許，意思是"可以”，而must必須”、should".

應該”、would寧愿”則沒有此用法。故選答案A.7.Mum,

may

I

go

to

see

a

filmwith

my

cousin?

You_____go

if

you

have

finished

yourhomework.A.mustB.

needC.

shouldD.

can[答案]

D。[解析]句意:

媽媽，我可以和表兄一起去看電影嗎?

如果你已經完成了作業就可以去。因為can可以表示允許，意思是“可以”，

根據句意，故選答案D。

Mun

it's

toohot.

________I

swim

in

the

lake?NO,

you_______

.

That'

s

too

dangerous!

A.Should;

can't

B.

Need;

mustn't

C.

Must;

needn't

D.

Could;

mustn't[答案]

D。

[解析]句意:

媽媽，天太熱了。我可以去湖里游泳嗎?

不，你不可以。

那太危險啦!

should"應該”;

need"必要”;

can't"不可以”;

could"

可以”;

needn't不必要”;must必須”;

mustn't

不準許”。情態動詞Could用于第一人稱一般疑問句，表示請求;對Could1

.開頭表示請求的句子做否定回答時，使用No,you

can't。故選答案D。9.The

designer

has

tried

every

possible

way

1D

make

the

robot

light,

so

you

_____

worry

about

isweight.A.

must

B.

may

C.

can't

D.

needn't[答案]

D。

[解析]句意:這位設計師已經試每

種

可能的方法來使機器人輕巧,所以,你沒有必要擔心機器人的重量。may"必須"

;

may"可以”;

can't"

不可能”;

needn't"

不必要”，

根據前句The

designerhas

tried

every

possible

way如make

the

robot

light

(這位設計師已經試每

種可能的方法來使機器人輕巧)可知，應迄答案needn't。10.Mum,

may

I

play

putergames

this

evening?No

way,

you______finish

your

homework.A.

can

B.

must

C

may

D.

will[答案]

B。[解析]句意:

媽媽，今晚我可以玩電腦游戲嗎?

不行。你必須完成你的作業。can能、可以”;

must”必須”;

may"可以”;

will"將要”.根據句意，應選情態動詞must才符合句意，所以正確答案為B。一．完形填空

SeveralyearsagoIstudiedinauniversityinthebiggestcityinourcountry.It'sbeautifulbutit'shotin_1.SoIusuallyreturnedtomyhometownwhenmy_2began.Itisnotbig,butit'scoolandquiet.Icould_3_inthedaytimeandhaveagoodsleepatnight.OnedayIhadsome_4_tosolve.ButIdidn'ttakethedictionarieshome.MyfathertoldmeCharlie,oneofmy_5,hadagoodlibrary.Iwenttohishouseatonce.Wedidn'tseeeachotherafterI____6__middleschool.Atfirsthedidn'trecognizeme.He___7_meupanddown.Andthenhecalledout,Oh,dear!It'syou,Fred!Ofcoursewewere_8tomeeteachotheragainandtalkedalotaboutourschoolmatesand_2.Lateronheshowedmearoundhislibrary.Itwasn'tbigbuttherewerealotofnicebooksinit.AndthedictionariesI_10_wereinthemtoo.AtlastIsaid,"_11.youlendsomedictionariestome,please?"I'msorryIdon'tlendanybooksto_12,saidtheyoungman.AreyouafraidI’ll_13them?No,I'mnot.Fmafraidyouwon't_14themtome.Look!Allthebooksarenot___15__,butborrowed!1.A.spring B.summer C.autumn D.winter2.A.birthday B.Saturday C.Sunday D.holiday3.A.study B.play C.rest D.run4.A.words B.sentences C.problems D.stories5.A.brothers B.sisters C.aunts D.classmates6.A.finished B.heard C.saw D.met7.A.lifted B.carriedC.lookedD.pulled8.A.angry B.happyC.worried D.sad9.A.doctors B.teachersC.workersD.drivers10.A.lookedfor B.readC.wroteD.lookedat11.A.Need B.Must C.May D.Can12.A.other B.theother C.others D.another13.A.lose B.sell C.throw D.know14.A.pay B.return C.use D.lookafter15.A.madeB.picked.C.wonD.bought

這篇短文主要講了Charlie家里有許多藏書，卻沒有一本是

自己買的，所以他從不借書給別人，因為他怕別人都和他一樣。

木題的不少答案貝從缺空所在句子的語意和語法是無法確定的，解題是要聯系上下文及一般常識進行推理。1.

B

hot應該指的是夏天的天氣情況。2.

D

大學生暑假回家度假。3.

A學生暑假應該不忘學習。4.

C

solve

problems意為“解決問題”。5.

D根據下文可得知。.6.

A.

finish

midle

school表示“中學畢業”。7.

C.

look

sb.

up

and

down表示“上下打最某人”，這時look用作及物動詞。8.

B.者同學相見自然是高興。9.

B。

同學之問談論的主要對象

般應該

是同學和老師。10.

A.根據上下文得知“我"正在尋找一木字典。11.

D.這里指征求別人的意見，故用can。12.

C.泛指其他人，故用復數。.13.

A.“我”以為他怕我把書弄夫，所以不借。14.

B.根據下文得知似的書都是借的，所以他不愿借給我，怕我也象他一樣借書不還。15.

D.這些書都不是買的，而是借的。

二．閱讀理解Mr.Kingworksinashopanddrivesacarforthemanager.Hedrivescarefullyandcankeepcalmintimeofdanger.Andheescapedfromseveralaccidents.Themanagerpayshimmoreandthetrafficpolicemenoftenspeakhighlyofhim.Mr.Baker，oneofhisfriends，worksinafactoryoutsidethecity.It’sfarfromhishouseandhehastogotoworkbybus.Asthetrafficiscrowdedinthemorning，sometimeshe’slateforthework.Hismanagerwarnstheyoungmanthathewillbesentawayunlesshegetstohisofficeontime.Hehopestobuyacar，buthehasn’tenoughmoney.Hedecidestobuyanoldone.Hewenttotheflea（跳蚤）marketandatlasthechoseabeautifulbutcheapcar.Hesaidhewantedtohaveatrial（試驗）drive，theselleragreed.HecalledMr.Kingandaskedhimtohelphim.Mr.Kingexaminedthecaratfirstandthendroveitaway.Itwasfiveinthemorningandtherewerefewcarsinthestreet.Atfirsthedroveslowlyanditworkedwell.Thenhedrovefast.Andwhenhereachedacrossing，thelightsturnedred.Hetriedtostopit，buthefailedandnearlyhitanoldwomanwhowascrossingthestreet.Apolicemantoldhimtostop，butthecarwentonuntilithitabigtreebytheroad.“Didn’tyouhearme？”thepolicemanaskedangrily.“Yes，Idid，sir，”saidMr.King，“Sinceitdoesn’tlistentome，canitobeyyou？”1.Mr.Kingispaidmorebecausehe_______.A.alwaysdrivesveryslowlyB.isnotafraidofdangerC.haddrivenforyearsD.drivesverywell2.Mr.Bakerwenttothefleamarketto_______.A.buyasecondhandcarB.haveatrialdriveC.chooseanewcarD.sellhisoldcar3.Mr.Kingtriedtostopthecarwhen_______.A.hesawanoldwoman