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词汇 could
释义 could
modal verb
ukstrong /kʊd/weak /kəd/usstrong /kʊd/weak /kəd/

couldmodal verb (CAN)


A2
past simple of "can", used to talk about what someone or something was able or allowed to do: (can 的过去式,表示能够或允许)能,可以
When I was younger I could stay up all night and not get tired.我年轻时,一通宵不睡觉都不觉得累。
It was so noisy that we couldn't hear ourselves speak.太吵了,我们连自己说话都听不见。
You said we could watch TV when we finished our homework.你说过我们完成家庭作业后可以看电视。
We asked if the computer could access the internet.我们询问这台计算机能否上网。
She walked off before I could say anything.
I could never have achieved this without the encouragement of my husband and family.如果没有我丈夫和家人的鼓励,我永远都不可能取得这样的成就。
I could see by the look on their faces that something was wrong.
I wish I could find (the) time to do more reading.我希望自己能挤出时间多看一点书。
Even when you win a match you always feel you could have played better.

couldmodal verb (PERMISSION)


B1
used as a more polite form of "can" when asking for permission: (礼貌地请求许可,比用can更加有礼貌)可以,能
Could I speak to Mr Davis, please?我可以和戴维斯先生通话吗?
Excuse me, could I just say something?对不起,我可以讲几句话吗?
Could I borrow your pen?
Could we see her now, please?
Could I have some more pudding?
Could I use your bathroom, please?
Could I leave the children with you this morning?
SMART Vocabulary: related words and phrases

Polite expressions
actually
allow
be so good as tophrase
by all meansidiom
chance
cordially
magic word
may I askidiom
might
might I ask/inquire/knowidiom
no problemidiom
obliged
pardon (me)idiom
problem
say
thank you
welcome
wonder
would
you're welcomeidiom

couldmodal verb (REQUEST)


A2
used as a more polite form of "can" when asking someone to provide something or do something: (礼貌地请求提供某物或做某事,比用can更加有礼貌)能,可以
Could you lend me £5?你能借我5英镑吗?
Could you turn that music down a little, please?你能把音乐声调低一点吗?
Please could you explain why you're so late.你能否解释一下你迟到这么久的原因?
I'm frozen - could you close the window?冻死我了——把窗户关上好吗?
I've got rather a full week next week - could we postpone our meeting?
If you could get that report finished by Thursday I'd be very grateful.如果你能在周四之前完成那份报告,我将感激不尽。
Ben, could you hand round the biscuits?
SMART Vocabulary: related words and phrases

Making appeals & requests
adjuration
appellate
apply for something
apply to
appreciate
ask a lot
besiege
car wash
cry
entreat
entreaty
imploringly
importunately
importunity
invite
invocation
leech
push
scrounge
ticket

couldmodal verb (POSSIBILITY)


B1
used to express possibility, especially slight or uncertain possibility: (尤用于表示微小或不确定的可能性)可以,能,也许
A lot of crime could be prevented.许多犯罪活动是可以防止的。
She could arrive anytime now.她现在随时会到。
This new drug could be an important step in the fight against cancer.这种新药可能是攻克癌症过程中迈出的重要一步。
could haveBe careful with that stick - you could have hit your sister!留心那根棍子——你差点打到你妹妹!
Passengers could face long delays.旅客可能会长时间滞留。
The temperature could fall below zero overnight.气温可能一夜间突降到零度以下。
You could be the Queen of England, for all I care - you're not coming in here without a ticket.你就算是英格兰女王我也不管——没有票,你就别想进来。
Anything could happen in the next half hour.接下来的半小时内什么事都可能会发生。
It is not inconceivable that she could be lying.
SMART Vocabulary: related words and phrases

Possible and probable
add credence to something
always
anything's possibleidiom
arguably
as never beforeidiom
bet
fair
happen
houseroom
I shouldn't wonderidiom
in with a chance
it isn't over until the fat lady singsidiom
manage
margin
probabilistic
probabilistically
probability
probable
probably
tend

couldmodal verb (SUGGESTION)


B1
used for making a suggestion: (用于提出建议)可以,能
We could go out for a drink after work tomorrow, if you want.要是你愿意,明天我们下班后可以去喝上一杯。
could always You could always call Susie and see if she will babysit.你随时可以给苏茜打电话,看看她能否帮你照看孩子。
You could offer to buy her a new one.
Could you get a bigger house?
We could try mending it with glue.
I could look after Toby for you.
We could have lunch one day.
SMART Vocabulary: related words and phrases

Suggestions & proposals
about
bounce something off someone
can't
co-sponsor
co-sponsorship
drop
if you take my meaningidiom
make noisesidiom
maybe
move
mover
nod
nomination
on the tableidiom
proposition
put ideas into someone's headidiom
put someone to somethingidiom
put something in
put something up
resubmission

couldmodal verb (SHOULD)


used for saying, especially angrily, what you think someone else should do: (尤指生气地对某人表示不满)应该
Well, you could try to look a little more enthusiastic!喂,你应该表现得热心一点!
I waited ages for you - you could have said that you weren't coming!我等了你很久——你应该提前说一声你不来!
SMART Vocabulary: related words and phrases

Duty, obligation and responsibility
accountable
accountable to someone
accountably
answer for something
buck
commitment
department
dual role
duty
duty of care
fail
fall to someone
obligatory
obliged
on your own head be itidiom
ought to
preserve
shoulder
someone's answer to someone/somethingidiom
the onus

Grammar



Could
Could comes first in the verb phrase (after the subject and before another verb): …

Could: form
Could comes first in the verb phrase (after the subject and before another verb): …

Could: uses
We often use could to express possibility in the present and the future. …

Could: past
We don’t usually use could to talk about single events that happened in the past. …

Could, may and might
We use could, may and might to express degrees of possibility. Many native speakers disagree on which one expresses more or less certainty. …

Can, could or may: typical errors
Could in the present only expresses weak possibility. Can expresses strong possibility: …

Idiom


could do with something

could | American Dictionary


could
us/kʊd, kəd/

could (CAN)


past simple of can:
You said we could watch television when we finished our homework.
When I was younger I could stay up all night and then go to work.

Idioms


could care less
could have died
could use
could
modal verb
us/kʊd, kəd/

couldmodal verb (ASK PERMISSION)


present tensecould
used as a more polite form of can when asking for permission:
Could I speak to Mr. Harley, please?

couldmodal verb (REQUEST)


present tensecould
used as a more polite form of can when making a request:
Could you lend me $5?

couldmodal verb (BE POSSIBLE)


used to express possibility, esp. slight or uncertain possibility:
A lot of these problems could be prevented.
It could be days before we hear from her.
I could have been an actor.

couldmodal verb (SUGGEST)


present tensecould
used for making a suggestion:
We could go to the movies.

couldmodal verb (SHOULD)


present tensecould
used for saying what you think someone else should do:
You could try to look a little more enthusiastic.
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