can在做情态动词和实意动词分别是什么意思?

　　can 既可以做情态动词,又可以做实义动词,还可以做名词.The thieves dropped the torch and run away as quickly as they could.中的could是实意动词还是情态动词?I can paly football.中的can是情态动词还是实意动词?在以上两个句子中,都是情态动词.　　现在把can的用法简单解答如下：aux.能；能够；可以；可能　　vt.将…装入密封罐中保存　　n.罐头；（用金属或塑料制作的）容器；（马口铁或其他金属制作的）食品罐头　　复数：cans第三人称单数：cans过去式：could过去分词：could现在分词：canning　　主要介绍情态动词的用法如下：1.MODAL（表示某事物的特点）能够,可以You use can when you are mentioning a quality or fact about something which people may make use of if they want to.Pork is also the most versatile of meats. It can 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.Luckily, iron can 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.A central reservation number operated by the resort can direct you to accommodations that best suit your needs.该旅游胜地开设的预约中心电话可指引你找到最适合你的住处.2.MODAL（表示有能力或机会）能,会,可以You use can to indicate that someone has the ability or opportunity to do something.Don't worry yourself about me, I can take care of myself.你别担心我,我能照顾好自己.I can'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.Oh Stephen darling, how can I ever thank you for being so kind?哦,亲爱的斯蒂芬,你对我这么好,叫我怎么感谢你呢?3.MODAL（用于否定句,表示情况不允许）不能,无法You use cannot to indicate that someone is not able to do something because circumstances make it impossible for them to do it.People who can't afford to go to the theatre or concerts can 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.We cannot 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.She cannot sleep and the pain is often so bad she wants to scream.她睡不着觉,常常疼得直想尖叫.4.MODAL有可能；有时会You use can to indicate that something is true sometimes or is true in some circumstances....long-term therapy that can last five years or more.有可能持续5年乃至更长时间的长期治疗.A vacant lot or a bombsite can, 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.I've quite forgotten how closed in London can seem.我都快忘了,伦敦有时看上去会多么地闭塞.5.MODAL（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 use cannot and can't to state that you are certain that something is not the case or will not happen.From her knowledge of Douglas's habits, she feels sure that the attacker can'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.Things can't be that bad...情况不会糟到那个地步.You can't be serious, Mrs Lorimer?洛里默夫人,你该不会是认真的吧?6.MODAL（表示允许）可以You use can to indicate that someone is allowed to do something. You use cannot or can't to indicate that someone is not allowed to do something.You must buy the credit life insurance before you can buy the disability insurance...你必须先购买信用人寿保险,方可购买伤残保险.No-one can set up a waste disposal company unless they can 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.Here, can I really have your jeans when you grow out of them?喂,等你穿不下这些牛仔裤时真的可以给我吗?7.MODAL不行；不能；不该You use cannot or can't when you think it is very important that something should not happen or that someone should not do something.It is an intolerable situation and it can't be allowed to go on...这种情况忍无可忍,不能再任其继续下去了.The Commission can'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.MODAL（通常用于疑问句,表示建议或提议帮忙）能You use can, usually in questions, in order to make suggestions or to offer to do something.What can I do around here?我在这儿能做点儿什么?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?”Hello John. What can we do for you?喂,约翰!我们能帮你做点什么吗?9.MODAL（用于疑问句时,can 表示礼貌的请求,而 can't 表示强烈请求）You use can in questions in order to make polite requests. You use can't in questions in order to request strongly that someone does something.Can I have a look at that?我能不能看一眼那个?Can you please help?请你帮个忙好吗?Can you just lift the table for a second?能不能请你把桌子抬一下?10.MODAL（用于有礼貌地打断,或引导要说的话）能,可以You use can as a polite way of interrupting someone or of introducing what you are going to say next.Can I interrupt you just for a minute?我能不能打断你们一下?But if I can 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.Can I just ask something 'cos I'm really quite interested in this.我能不能问个问题,因为我对这个真的很感兴趣.11.MODAL（与 imagine, think, believe 等动词连用,用来加强语气）能You use can with verbs such as 'imagine', 'think', and 'believe' in order to emphasize how you feel about a particular situation.You can imagine he was terribly upset.你能想象得出来,他当时心里乱得要命.You can'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.It's been an appallingly busy morning, I can't tell you.我今天一上午那个忙啊,都没法说.12.MODAL（与 how 一起用于疑问句,表示感受强烈）能,能够You use can in questions with 'how' to indicate that you feel strongly about something.How can you complain about higher taxes?你怎么能抱怨税费的提高呢?How can millions of dollars go astray?几百万美元怎么可能不翼而飞呢?How can you say such a thing?你怎能说出这种话来?Usage Note:用法比较：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）.