第20练情态动词could的用法-2019-2020学年八年级下学期英语（人教版）

第20练情态动词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吗?一是的，

你可以。Could

I

sth地表示"我可以做某事吗?

"语气比较委婉，表示请求允许,即请求别人允许自己做某事，答语要用can,与can't来回答，故答案为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

用很低的声音说话，但是我能明白她说了什么。could

能，是can的过去式;

might以，可能;

can能;

may可以，可能。根据句意和句中的but表示转折可知，这里表示能够明白”上句话中Millie

spoke

in...

用的是一一般过去时态，故这里也用过去时，选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]考查情态动词的辨析。should

表示应该，应当”，must表示“必须”:

need意力需要”:

mustn't表示禁止,不允许":

seedn'1意为~不需要”，一般用来回答mu引导的疑问句:

could表示能，可以”，语气更委换:

can't表示“不能。由句意”一太热了，

我能在湖里游冰吗?不，

不能。那太危险了!“可知，第一空用could对方提出请求;第二空表示禁止，故选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:作为中学生，无论我们走到哪儿，都应该遵守公共纪律。情态动词should"应该”，

would"将、会”、might"也许”could"

可能”。根据句意可知，句子强调责任与义务，所以选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:蚂蚁很小，你也许会认为他们一定相当弱小。可是你也许不知道的是:以蚂蚁身体大小而言，它们实际上很强大。情态动词need”必要”、can't"

不能、不会”、must"

必须”。情态动词must与连系动词be连用构成mustbe,意思是“定”，表示肯定推测。根据句意，故选答案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;我们不允许将杂志带出去,但是你可以在那边的机器上复制你所需要的文章。因为can可以表示允许，意思是"可以”，而must必须”、should".

应该”、would宁愿”则没有此用法。故选答案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:

妈妈，我可以和表兄一起去看电影吗?

如果你已经完成了作业就可以去。因为can可以表示允许，意思是“可以”，

根据句意，故选答案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:

妈妈，天太热了。我可以去湖里游泳吗?

不，你不可以。

那太危险啦!

should"应该”;

need"必要”;

can't"不可以”;

could"

可以”;

needn't不必要”;must必须”;

mustn't

不准许”。情态动词Could用于第一人称一般疑问句，表示请求;对Could1

.开头表示请求的句子做否定回答时，使用No,you

can't。故选答案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:这位设计师已经试每

种

可能的方法来使机器人轻巧,所以,你没有必要担心机器人的重量。may"必须"

;

may"可以”;

can't"

不可能”;

needn't"

不必要”，

根据前句The

designerhas

tried

every

possible

way如make

the

robot

light

(这位设计师已经试每

种可能的方法来使机器人轻巧)可知，应迄答案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:

妈妈，今晚我可以玩电脑游戏吗?

不行。你必须完成你的作业。can能、可以”;

must”必须”;

may"可以”;

will"将要”.根据句意，应选情态动词must才符合句意，所以正确答案为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

这篇短文主要讲了Charlie家里有许多藏书，却没有一本是

自己买的，所以他从不借书给别人，因为他怕别人都和他一样。

木题的不少答案贝从缺空所在句子的语意和语法是无法确定的，解题是要联系上下文及一般常识进行推理。1.

B

hot应该指的是夏天的天气情况。2.

D

大学生暑假回家度假。3.

A学生暑假应该不忘学习。4.

C

solve

problems意为“解决问题”。5.

D根据下文可得知。.6.

A.

finish

midle

school表示“中学毕业”。7.

C.

look

sb.

up

and

down表示“上下打最某人”，这时look用作及物动词。8.

B.者同学相见自然是高兴。9.

B。

同学之问谈论的主要对象

般应该

是同学和老师。10.

A.根据上下文得知“我"正在寻找一木字典。11.

D.这里指征求别人的意见，故用can。12.

C.泛指其他人，故用复数。.13.

A.“我”以为他怕我把书弄夫，所以不借。14.

B.根据下文得知似的书都是借的，所以他不愿借给我，怕我也象他一样借书不还。15.

D.这些书都不是买的，而是借的。

二．阅读理解Mr.Kingworksinashopanddrivesacarforthemanager.Hedrivescarefullyandcankeepcalmintimeofdanger.Andheescapedfromseveralaccidents.Themanagerpayshimmoreandthetrafficpolicemenoftenspeakhighlyofhim.Mr.Baker，oneofhisfriends，worksinafactoryoutsidethecity.It’sfarfromhishouseandhehastogotoworkbybus.Asthetrafficiscrowdedinthemorning，sometimeshe’slateforthework.Hismanagerwarnstheyoungmanthathewillbesentawayunlesshegetstohisofficeontime.Hehopestobuyacar，buthehasn’tenoughmoney.Hedecidestobuyanoldone.Hewenttotheflea（跳蚤）marketandatlasthechoseabeautifulbutcheapcar.Hesaidhewantedtohaveatrial（试验）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