情态动词用法(MODAL USES)
can is a modal verb. It is used with the base form of a verb. The form
cannot is used in negative statements. The usual spoken form of
cannot is
can't, pronounced /kɑːnt, AM kænt/.
can 是情态动词,与动词原形连用。
cannot 用于否定句中,口语中通常作
can't,读作 /kɑːnt, am 美 kænt/。
1.(表示某事物的特点)能够,可以
You usecan when you are mentioning a quality or fact about something which people may make use of if they want to.
e.g. Pork is also the most versatile of meats. Itcan be roasted whole or in pieces...
在肉类中,猪肉的做法也是最多的,可以整块烤来吃,也可以切片烤来吃。
e.g. Luckily, ironcan be reworked and mistakes don't have to be thrown away...
所幸的是,铁可以再加工,次品、废品不必被扔掉。
2.(表示有能力或机会)能,会,可以
You usecan to indicate that someone has the ability or opportunity to do something.
e.g. Don't worry yourself about me, Ican take care of myself...
你别担心我,我能照顾好自己。
e.g. Ican't give you details because I don't actually have any details...
我没办法给你提供细节,因为我并不了解任何细节。
3.(用于否定句,表示情况不允许)不能,无法
You usecannot to indicate that someone is not able to do something because circumstances make it impossible for them to do it.
e.g. People whocan't afford to go to the theatre or concertscan afford to go to football matches...
看不起电影或听不起音乐会的人可以去观看足球赛。
e.g. Wecannot buy food, clothes and pay for rent and utilities on $20 a week...
一个星期才20美元,不够我们吃穿、付房租及水电等费用的。
4.有可能;有时会
You usecan to indicate that something is true sometimes or is true in some circumstances.
can
e.g. ...long-term therapy thatcan last five years or more...
有可能持续5年乃至更长时间的长期治疗。
e.g. A vacant lot or a bombsitecan, to the amateur naturalist, produce an extraordinary variety of flora and fauna...
对于业余博物学者来说,在一片空地上或被炸后的废墟里可能发现种类繁多的植物群和动物群。
5.(用于否定句,表示确信某事不真实或不会发生)不可能,不会
You usecannot andcan't to state that you are certain that something is not the case or will not happen.
can
e.g. From her knowledge of Douglas's habits, she feels sure that the attackercan't have been Douglas...
根据她对道格拉斯习性的了解,她敢断定他不可能是那个袭击者。
e.g. Thingscan't be that bad...
情况不会糟到那个地步。
6.(表示允许)可以
You usecan to indicate that someone is allowed to do something. You usecannot orcan't to indicate that someone is not allowed to do something.
e.g. You must buy the credit life insurance before youcan buy the disability insurance...
你必须先购买信用人寿保险,方可购买伤残保险。
e.g. No-onecan set up a waste disposal company unless theycan show that they've got enough money and trained staff to do the job properly...
任何人若想成立废品处理公司,必须证明其拥有足够资金和受训员工以保证工作可以顺利开展。
7.不行;不能;不该
You usecannot orcan't when you think it is very important that something should not happen or that someone should not do something.
e.g. It is an intolerable situation and itcan't be allowed to go on...
这种情况忍无可忍,不能再任其继续下去了。
e.g. The Commissioncan't demand from Sweden more than it demands from its own members.
委员会对瑞典的要求不能比对自己的会员国要求都多。
8.(通常用于疑问句,表示建议或提议帮忙)能
You usecan, usually in questions, in order to make suggestions or to offer to do something.
e.g. Whatcan I do around here?...
我在这儿能做点儿什么?
e.g. This old lady was struggling out of the train and I said, 'Oh,can I help you?'...
我看见这位老太太正颤巍巍地下火车,就问:“嗯,我来帮您一把吗?”
9.(用于疑问句时,can 表示礼貌的请求,而 can't 表示强烈请求)
You usecan in questions in order to make polite requests. You usecan't in questions in order to request strongly that someone does something.
e.g. can I have a look at that?...
我能不能看一眼那个?
e.g. can you please help?...
请你帮个忙好吗?
10.(用于有礼貌地打断,或引导要说的话)能,可以
You usecan as a polite way of interrupting someone or of introducing what you are going to say next.
e.g. can I interrupt you just for a minute?...
我能不能打断你们一下?
e.g. But if Ican interrupt, Joe, I don't think anybody here is personally blaming you...
对不起,乔,我插一句,可我认为在座的没有谁在埋怨你。
11.(与 imagine, think, believe 等动词连用,用来加强语气)能
You usecan with verbs such as 'imagine', 'think', and 'believe' in order to emphasize how you feel about a particular situation.
e.g. Youcan imagine he was terribly upset...
你能想象得出来,他当时心里乱得要命。
e.g. Youcan't think how glad I was to see them all go...
你都想象不到,我看到他们全都走了,心里是多么高兴。
12.(与 how 一起用于疑问句,表示感受强烈)能,能够
You usecan in questions with 'how' to indicate that you feel strongly about something.
e.g. Howcan you complain about higher taxes?...
你怎么能抱怨税费的提高呢?
e.g. Howcan millions of dollars go astray?...
几百万美元怎么可能不翼而飞呢?
can,
could, and
be able to are all used to talk about a person's ability to do something. They are followed by the infinitive form of a verb. You use
can or a present form of
be able to to refer to the present, although
can is more common.
They can all read and write...The snake is able to catch small mammals. You use
could or a past form of
be able to to refer to the past, and 'will' or 'shall' with
be able to to refer to the future.
Be able to is used if you want refer to doing something at a particular time.
After treatment he was able to return to work.can and
could are used to talk about possibility.
Could refers to a particular occasion and
can to more general situations.
Many jobs could be lost... Too much salt can be harmful. When talking about the past, you use
could have and a past participle.
It could have been much worse. You also use
can for the present and
could for the past to talk about rules or what people are allowed to do.
They can leave at any time. Note that when making requests either
can or
could may be used.
can I have a drink?... Could we put the fire on? However,
could is always used for suggestions.
You could phone her and ask.can, could 和 be able to 都可以表示某人有能力做某事, 后接动词原形。
can 和 be able to 的现在式指现在, 不过
can 更常见: They
can all read and write (他们都能读会写), The snake is able to catch small mammals (蛇能捕捉小型哺乳动物)。用 could 或 be able to 的过去式表示过去, will 或 shall 与 be able to 连用指将来。表示特定时间做某事时, 用 be able to: After treatment he was able to return to work (经过治疗, 他又能上班了)。
can 和 could 可用来谈论可能性, could 指特定场合,
can 指较一般的情况: Many jobs could be lost (可能会失去许多工作岗位), Too much salt
can be harmful (食盐过多会有害处)。谈论过去则用 could have 加过去分词: It could have been much worse (原本会更糟糕)。表示规则或获准做某事, 可用
can 指现在, could 指过去: They
can leave at any time (他们随时可以离开)。注意, 表示请求时,
can 和 could 都能用:
can I have a drink (给我来杯饮料好吗), Could we put the fire on (我们可以把火点上吗)。然而, 提建议时总用 could: You could phone her and ask (你可以打电话给她问问看)。
容器(CONTAINER)
1.(盛放食品、饮料或油漆的)罐子,金属罐,听
Acan is a metal container in which something such as food, drink, or paint is put. The container is usually sealed to keep the contents fresh.
can
e.g. Several young men were kicking a tincan along the middle of the road.
几个青年人踢着一个锡罐在路中间走着。
e.g. ...empty beer cans.
空啤酒罐
2.将(食物、饮料)装罐保存
When food or drinkis canned, it is put into a metal container and sealed so that it will remain fresh.
e.g. ...fruits and vegetables that will be canned, skinned, diced or otherwise processed...
将要装罐、去皮、切块或用其他方法加工的水果和蔬菜
e.g. It was always roast lamb and canned peas for Sunday lunch.
星期天午餐总是吃烤羔羊肉和豌豆罐头。
3.厕所
The can is the toilet.
4.解雇;开除
If youare canned, you are dismissed from your job.
e.g. The extremists prevailed, and the security minister was canned...
极端主义分子猖獗,致使安全部长被解职。
e.g. When I got canned, I took these keys as souvenirs.
我被开除后,就拿了这些钥匙作为纪念。
5. see also: canned
6.承担所有指责;代人受过
If you have tocarry the can, you have to take all the blame for something.
e.g. We are a luxury restaurant and if people have a bad experience, we have to carry thecan.
我们这是豪华饭店;如果客人用餐不愉快,背黑锅的就是我们。
7.完成了的;完结的
If you say that something such as a job that you are doing isin the can, you mean that it is completely finished.
e.g. With another day's work in thecan, Philip is happy to leave the open countryside and head for his London flat.
又干完了一天的活,菲利普满心愉悦地离开了广袤的乡村,前往自己位于伦敦的公寓。