could, should和would除了分别是can，shall和will 的过去式，还有其他的用法，有人学英语多年还容易将其搞混淆，因此使用时要特别注意：
1.could的用法
(1)表示惊异、怀疑、不相信等态度：
How could John be so arrogant？约翰怎么这么傲慢？
He couldn't be over forty. 他不可能有40多岁了。
Where could she be now？她现在能在哪儿呢？
以上三个句子可以用can代替could，两者在时间上没有差别，只是用could时语气较缓和，用can时不相信程度更强一些。
(2)比较委婉客气地提出问题或陈述看法：
Could(Can) you lend me your walkman？你能把随身听借给我用一下吗？
Could I see your credentials？我可以看看你的证件吗？
这时could和can没有时间上的差别。
(3)在虚拟条件句中作助动词，与谓语动词一起构成谓语：
I could do it (if I would).（假如我愿意的话）我是能办到这一点的。（指说话人不愿意）
You could have done better if you had been more careful. 你要是再细心一点，是可以做得更好的。
2.should的用法
(1)表示惊异、赞叹、不满等情绪：
It is simply a miracle that rice should grow in such a place. 稻子竟能在这样的地方生长，这实在是个奇迹。
It's wonderful that you should get full marks. 你得了满分真了不起。
Why should you be so late today？你今天怎么来得这么晚？
(2)表示委婉地陈述自己的意见：
I should think you are right. 我想你是对的。
(3)（表示语气较强的假设）万一，竟然：
If he should fail to come, ask Tom to work in his place. 万一他不来，就叫汤姆代替他工作。
(4)（表示可能性、推测）可能，该：
My sister should be home by now. 我妹妹现在应该到家了。
(5)（表示建议、命令、愿意等）应该：
I move that he should come with us. 我坚持他应和我们一起去。
3.would的用法
(1)用在虚拟语气的主句中：
If you went to see him, he would be delighted. 如果你去看他，他一定非常高兴。
She would have come if she hadn't been so busy. 要不是忙她就来了。
(2)委婉地提出请求、建议或看法：
Would you take a seat？请坐！
(3)表示意愿，在陈述语气和虚拟语气都可用：
He would not leave before he finished his work. 他在完成工作以前不愿离开。
(4)表示过去反复发生的动作：
Now and then a blackbird would call. 不时会有山鸟叫。
(5)表示过去的一种倾向:
The wound would not heal. 伤口老不愈合。
(6)表示推测：
That would be in spring 1989. 那大概是在1989年春天。
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should和would都是情态动词，也是助动词，你应该知道，
它们两个有时也可以不译。
首先should，在汉语中，我们常译为：应该。而would 常译为：可以或者是将要。
给个例子you should clean the classroom。你应该打扫教室。
It would be rain soon 。不久将会下雨。
而仅仅将这两个词做比较，显然should 比would语气更强烈
我今年刚高考完。还有几个需要提醒你，1个用法
sb shuold have done sth 某人应该做什么事（注意是应该，而实际上没做）。
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should和would的区别和用法1）should无词义，只是shall的过去形式，与动词原形构成过去将来时，只用于第一人称。例如：I telephoned him yesterday to ask what I should do next week. 我昨天给他打电话，问他我下周干什么。比较："What shall I do next week?" I asked. "我下周干什么？"我问道。（可以说，shall变成间接引语时，变成了should。）2）would 也无词义，是will的过去形式，与动词原形构成过去将来时，用于第二、第三人称。例如：He said he would come. 他说他要来。比较："I will go," he said. 他说：
"我要去那儿。" 变成间接引语，就成了：He said he would come. 原来的will变成would，go变成了come.。
should 本应该做某事却没有做,表示责备和遗憾.
如; You should ahve told me the news eariler.
would 表示与事实相反。
1。If I were a bird, I would be happy.(与现在事实相反)
2. If I had told him the news, he would have cried..(与过去事实相反)
3. If I were to go tomorrow, I would take a plane..(与将来事实相反)
should have done 是翻译为本该做某事而没做would have filled 没有这个意思
1 Like the rules governing the use of shall and will on which they are based, the traditional rules governing the use of should and would are largely ignored in modern American practice. Either should
or would can now be used in the first person to express conditional futurity:
就象作为shall 和will 词的基础的限用的用法规则一样，适用于should 和would 这个词的传统使用规则在现代美国英语中也已被忽略了。现在should 或would 这两个词中的任何一个都可以用于第一人称，表示条件式中的将来：
If I had known that, I would (or somewhat more formally, should ) have answered differently.
如果已经知道了这个情况的话，我就（或正规一点用should ）不会那么回答了，
2 But in the second and third persons only would is used:
但在第二人称或第三人称中只用would ：
If he had known that, he would (not should ) have answered differently.
如果他知道那个情况的话，就（不能用should ）不会那么回答了。
3 Wouldcannot always be substituted for should, however. Should is used in all three persons in a conditional clause:
但是Would并不是总是能由should 代替。Should 在三种人称的条件从句中都可以用：
if I (or you or he ) should decide to go.
如果我（或你或他）决定要去。
4 Should is also used in all three persons to express duty or obligation (the equivalent of ought to ):
Should用于这三种人称的表示职责和义务的句子中（相当于ought to ）：
I (or you or he ) should go.
我（或者你或者他）应该去。
5 On the other hand, would is used to express volition or promise:
另一方面，would 用来表达决心或保证：
I agreed that I would do it.
我一定会做的。
6 Either would or should is possible as an auxiliary with like, be inclined, be glad, prefer, and related verbs:
而would 或should 都可以作助词和like，be inclined，be glad，prefer 及其相关词语一起使用：
I would (or should ) like to call your attention to an oversight.
我想（或should ）请你注意一下一个疏漏之处。
7 Here would was acceptable on all levels to a large majority of the Usage Panel in an earlier survey and is more common in American usage than should. ·Should have is sometimes incorrectly written should of by writers who have mistaken the source of the spoken contraction should've. See Usage Note at if, rather, shall
在此处，在一次早期的调查中对大多数各阶层的使用者来说，would 是可以接受的，且在美国用法中比should 更为常见。有时书写者把should have 误拼成should
of ，因为他们把口头缩略形式should've的来源给弄错了
Would 用法归纳 1 . would用在陈述语气中，表示过去将来时，表示有意识的行动或意志，常用于间接引语中，译为“要；偏要；愿”。例如： I said I would do my best.我表示过要尽最大努力。 He said he would do me a favor.他说他愿意帮助我。 2. would 用在陈述语气中，表示过去将来时，表示无意识的行动或单纯将来发生的事或动作，指实际情况，译为“将，会”。例如： He told me he would he free tonight.他告诉我他今晚有空。 He said he would turn up on time.他说他会准时出席。 3. would 用于表示过去经常性或习惯性的动作。译为“总会，总是”。 例如： Sometimes I would come home late.有时我总是迟回家。 He would read in the sun.他过去常在阳光下读书。 4. would 用于过去的否定句中，表示拒绝，或无此习惯或不可能，译为“不肯，总是不”。 He wouldn't give the names of his partners.他拒绝讲出他的伙伴们的名字。
5. 用于对过去事情的推测，译为“大概”。例如： That would be in spring 1964.那大概是1964年春天的事情。 6． Would 例如：——Of course, he broke the glass.当然是他把杯子打破了。——Oh, he would .哦，还会是谁呢。 7． would = could 译为“能，能够”。例如： The room would seat 50 persons这房间能穿纳50人 8．用于虚拟语气的主句中。例如 If I were your, I would quit smoking.如果我是你，我就戒烟。 If you were a bird, you would fly. 9。Would (that) I were a superman.我要是超人那该多好啊。 10、表示要求、邀请、希望或询问，其后常接like, love, prefer, mind 等动词。 Would you please show me the way? 请你指点指点路线好吗？ Would you like to go shopping with me? 愿和我一起去购物吗
shall的情态动词用法 1. 在疑问句中用于征求对方意见，主要用于第一人称(在英国英语中，也用于第三人称)，其意为“要不要”、“…好吗”。 如： Shall we meet again tonight? 咱们今晚要不要再碰碰头? Shall they wait for you? 要不要他们等你? 2. 在陈述句中表示说话者的允诺、告诫、威胁、命令、规定、必然性等，主要用于第二、三人称。 如： You shall suffer for this. 你会为此事吃苦头的。(表威胁) That day shall come. 那一天一定会来。(表必然性) You shall hear everything directly you come. 你一来就可听到所有情况了。(表允诺) 【注意】用于第一人称，则表示决心。 如： I shall return. 我一定回来。(表示决心) 好啦，今天的课程就到这里了，see you tomorrow ！ 1. 用于疑问句 shall在疑问句中可用于征求对方意见，主要用于第一人称，其意为“要不要”“……好吗”。如： Shall I turn on the light? 要不要把灯开开? Shall we take a taxi? 我们乘出租汽车，好吗? What shall I do with your mail? 我应该怎么处理您的信件? 在英国英语中也可用于第三人称。如： Shall the boy come at once? 要不要这孩子马上来? 2. 用于陈述句 shall在陈述句表示说话者的允诺、告诫、威胁、命令、规定、必然性等，主要用于第二、三人称。如： You shall have a sweet. 你会吃到一块糖。(表允诺) You shall do as you please. 你可以随意行事。(表允诺) He shall suffer for this. 他将为此受苦。(威胁) Each competitor shall wear a number. 每个参赛者要戴一个号码。(表规定)
will与would用法详解 1. 表示意愿 will 表示现在的意愿，would表示过去的意愿： I will pay you at the rate you ask. 我愿意照你要求的价钱付款。 Go where you will. 你愿到哪里就到哪里。 He wouldn’t help me yesterday. 他昨天不愿帮助我。 She asked if I would go with them. 她问我是否愿同他们一 起去。 【注】(1)表示“意愿”的 will 有时可用于条件句中： If you will allow me, I will see you home. 如果你同意， 我可以送你回家。 (2) would也可表示现在的意愿，语气较委婉： I’d go there with you. 我愿同你去那儿。 I wouldn’t go. 我不会去。 2. 表示征求意见或提出请求 主要用于第二人称的疑问句中，will和would均可用，would此时并不表过去，而表示委婉语气： Won’t you take off your coat 你要不要把大衣脱掉 Will [would] you please post the letter for me 请帮我寄 了这封信好吗 Would Sunday night suit you 星期天晚上适合你吗 【注】(1)有时为使语气委婉，可用否定式。总的说来，用would 比用will委婉，用won’t和wouldn’t比单独用will和would要 委婉。 (2)would有时用于提出想法，通常与like, love, hate, prefer, be glad, be happy等连用，若用于第一人称有时也可将would换成should： I’d lik e [love] to have a look at it. 我想看看它。 I would prefer not to go out today. 我今天不想出去。 3. 表示习惯和倾向性 will表示现在的习惯，would表示过去的习惯： Oil will float on water. 油总是浮在水上。
情态动词should的用法 情态动词should和can ，may ，must一样，没有人称和数的变化，有词意，但都不能单独作谓语，必须和后面的动词原形一起构成谓语。基本意思是“应当，应该”，常用来表示建议或命令等。如： You should work harder. 你应该更努力地工作。 否定式和疑问式的构成与can ，may ，must一样。如： You shouldn’t play soccer in the street.你们不应该在街上踢足球。 Who should pay the taxi driver? 谁应该付出租车钱？ 注意： 常用句型You should /shouldn’t do sth 表示“建议某人（不）做某事”。其他表示“建议”的句型还有：Why not do sth? /Why don’t you do sth? /How about doing sth? /What about doing sth? /It’s a good idea to do sth /You’d better do sth等。 should作为情态动词用，常常表示意外、惊奇、不能理解等，有“竟会”的意思，例如： How should I know? 我怎么知道？ Why should you be so late today? 你今天为什么来得这么晚？ should有时表示应当做或发生的事，例如： We should help each other.我们应当互相帮助。 我们在使用时要注意以下几点： 1. 用于表示“应该”或“不应该”的概念。此时常指长辈教导或责备晚辈。例如： You should be here with clean hands. 你应该把手洗干净了再来。 2. 用于提出意见劝导别人。例如： You should go to the doctor if you feel ill. 如果你感觉不舒服，你最好去看医生。 3. 用于表示可能性。should的这一用法是考试中常常出现的考点之一。例如： We should arrive by supper time. 我们在晚饭前就能到了。 She should be here any moment. 她随时都可能来。 1. We _________ keep the new traffic law(交通法). A. may B. should C. can D. need 2.I’d like to buy a new shirt , but I don’t know __________ . A. where could buy it B. I should take which C. which I should take D. where can I get it 写出同义表达 Why not have a rest? (1) Why _______ ________ have a rest? (2) You’d _________ _________ a rest. (3) You _______ ________ a rest. (4) ________ _________ having a rest?
1 的用法would like would like ”意为“想要”，其语气比用like 婉转些。具体用法如下： 1. 后面接名词或代词，表示“具体要”某样东西。例如： I'd like two sweaters for my daughters.（我想给我的女儿们买两件毛衣。） Would you like one of these mooncakes？（你想要一块这样的月饼吗？） 2. 后面接动词不定式，表示“愿望，喜爱”，常用于有礼貌地提出邀请、请求或建议。例如： I would like to drop maths.（我想放弃数学。） Would you like to come to supper？（你愿意来吃晚饭吗？） 3. 当主语是第一人称时，would 可与should 换用，它们都可以缩写为'd ，并且like 也可换成love .例如： I'm sure he would love to come.（我确信他愿意来。） I should like the red one. （我想要红色的。） 4. “would like ”后面可以用动词不定式作宾语补足语。例如： What would you like me to do？（你想要我干什么？） I'd like you to meet my parents，too.（我想要你也见见我的父母。） 我想要一些苹果。 I some apples. I some apples. 2. 汤姆想打网球。 Tom tennis. 3. 我妈妈想让我早点回家。 My mother home early. 【提示】 would like意为“想，想要”，与want意义相同，但语气更委婉。would like可与任何人称连用，没有人称和数的变化，肯定句中would常在主语后面缩写为'd。 肯定句：主语+ would like … 一般疑问句：Would + 主语+ like …? 特殊疑问句：疑问词+ would + 主语+ like …?
情态动词can, could will与would的用法和区别 一、情态动词can的用法 1. 表示能力，意思是：能，会。如： I can't swim. 我不会游泳。 Can you drive？你会开车吗？ 2. 表示客观可能性，意思是：可以，可能。如： That big cinema can seats 2,000 people. 那家大电影院能坐2000人。 He can be very friendly at times. 有时他会很友好。 3. 表示允许(和may意思相近)，意思是：可以，能够。如： You can have the book when I have finished it. 书我看完了可以给你。Can I use your pen？我可以用你的钢笔吗？ 4. 表示惊异、不相信等（用于疑问句、否定句或感叹句中），意思是：会，可能。如： This can't be true. 这不可能是真的。 Can it be true？这可能是真的吗？ 二、情态动词could的用法 1. 表示“能力”或“可能性”，作为can的过去形式。如： Could you speak English then？那时你能讲英语吗？ He said he couldn't follow me. 他说他跟不上我。 2. 表示惊异、怀疑、不相信等情绪。如： Who could have taken them？谁会把它们拿走了呢？ She couldn't have left so soon. 她不可能这么快就走了。 在这种情况下，could和can是可以换用的，用could时口气较缓和，用can时不相信的程度更强一些，两者在时间上没有差别。 3. 比较委婉客气地提出问题或陈述看法。如： ?/P> —Could you let me have your passport? —Yes, here it is. —看看你的护照好吗？ —行，这就是。 I could come earlier, if necessary. 如果必要我可以早点来。 这时could和can没有时间上的差别。 4. 在虚拟条件句中构成谓语。如：
一、情态动词should的用法 情态动词should有自己的意义，但不能单独作谓语，只能和其他动词一起构成谓语，表示说话人的态度或看法，后接动词原形。常见用法有以下几点： 1.表示劝告、建议等，意为“应该”，常指根据常理认为对的事或应该去做的事。 当劝某人做或不做某事时，常用“should do sth.”或“shouldn't do sth.”。should 比must 和ought to 语气更加委婉。 例句:You should brush your teeth before you go to bed.你在睡觉前应该刷牙。 You shouldn't watch TV every day.你不应该每天看电视。 2.通常用来表示现在或将来的责任或义务。 例句:Children should obey their parents.孩子们应该听从他们的父母。 We should respect the old.我们应该尊敬老人。 3.表示推断，意为“应该；可能”。 例句:They should be there by now，I think.我觉得现在他们应该都已经到了。 4.用于第一人称疑问句，询问对方的意愿，表示说话人的一种谦
逊、客气、委婉的语气。 例句:Should I open the window? 我可以打开窗户吗？ What should we do now? 我们现在该干什么呢？ 5.表示某种感情色彩，意为“竟会”，常用于以how, why开头引导的特殊疑问句中。 例句:Why should you be so early today? 你今天为什么会如此早
Should & Would 用法 should的用法： 1、（用于间接引语，表示）将 We said we shouldn't arrive till 6. 我们说过我们六点才能到。 "If it should rain tomorrow, the sports meeting would be postponed." "要是明天下雨,比赛就延期举行。" 2、（和that一起用于表示意愿的动词和形容词之后） He was keen that she should go to college. 他渴望她能上大学。 3、（在条件句中与第一人称连用）可能；会 I should have bought it if I had enough money. 如果当时我有足够的钱，我会把它买下来的。 4、（表示责任或义务）必须，应该 Children should obey their parents. 儿童应该服从他们的父母。 5、（表示可能之事）可能 It should be fine tomorrow. 明天可能天晴。 6、（表示不确定）万一 If I should see him, I'll tell him. 万一我见到他，我就告诉他。 would的用法： 1、[表示过去将来时, 用于第二、三人称](第一人称英国用 should, 美国用 would) 将, 会 He said he would come.他说他要来。 2、[表示意愿]愿; 偏要, 肯 He would eat nothing.他不肯吃东西; 他什么也不愿吃。 I told him not to go, but he would not listen.我叫他别去, 可他偏不听。 3、[表示过去的习惯动作]常常, 总是 He would sit for hours doing nothing.过去他常常坐几个钟头什么事也不做。 He would come to see us on Sundays.过去星期天他经常来看望我们。 4、[表示推测]大概, 该是 I would be about ten when my brother left home.我哥哥离开家时, 我大概十岁左右。 5、[表示某种假设的意志]想要, 愿意 I could do so if I would.要是我愿意, 我能够这样做(但我不愿意)。 If you would do this for me, I should be grateful indeed.若是你愿意为我做这件事, 我将万分感激。 6、[表示虚拟, 假设, 虚构, 用于虚拟条件句的主句第二、第三人称, 美国也用于第一人称]要, 会, 就会, 将要They would be killed if the car went over the cliff.如果汽车翻在悬崖下, 他们就会丧命。 They would have been killed if the car had gone over the cliff.如果汽车当时翻到悬崖下, 他们早就丧命了。 7、[表示请求或个人想法、看法, 使语气更婉转]请 Would you kindly show me the way to the station? 劳驾, 请问到车站的路怎么走? I would like to speak a few words. 我想讲几句话。 It would seem that he was right. 看来他倒是对的。 8、[表示假想的愿望]但愿, 要是...多好 Would [I would] that they were safe home again! 愿他们再能平安回家 ! Would that I were young again. 我若能再年青些该多好啊! 1
will, be going to 和would的用法区别 will, be going to 和would都有将要或将会干什么的意思，但是在用法上有很大的区别。 will 通常表示确定或计划好了的将来会/要发生的事，一般不以个人的主观意志为转移，或者主观上决定了不再改变的事。比如：I will be 30 next month（不是我啊）. It will rain tomorrow (根据气象台的报道). I will donate $1000 to my alma mater（也不是我啊）。 be going to通常表示即将要做或发生的事，主观愿望或判断很强烈，中文里相当于“打算”。美语口语常说成gonna. I am going to play soccer this afternoon. It's gonna be raining (我的判断). I am not gonna buy that car right now, but I'll do it after I get a job. （感受一下going to 和 will的差别) 两者的区别还在于，will 较 be going to 更书面化一些，be going to更口语化，通常说成gonna, 但说be going to也很正常，不过，如果你说英语不是那么地道就不要说gonna，否则人家反而觉得别扭。好比一个普通话都说不清楚的南方人，到了北京，本来人家也不会笑话你什么，不过你什么都没学会就，“边儿去”倒说得挺标准，还老用个没完，那听了可就有点儿别扭了。另外，有时候will 和be going to 的区别 也不明显，两者常可以互换使用，初学者不用太为计较。 至于 would，很有讲头啊。它原来是will的过去式。所以它的第一功能是表示过去将会发生的事。 比如： He told me he would not eat my mom's pancake. The baby was born to a poor farmer's family. Nobody knew he would become the 21th president o f United States of America 40 years later. （这是我随口瞎编的啊） The driver would have been in trouble if he'd drunk that night. would的第二层用法是最常见的和like或love联用，表示很想或很愿意做一件事，love则比like更为强烈。有些朋友想学一些最基本实用有趣的东西，这里我就引用一个美国朋友给我发的email中的一段，他恰好like和love都用了。We would like you to join our family for a traditional Christmas dinner on 25 December. We woul d love to have you come to Estes Park and enjoy a meal at our table and see some of our winter beauty. would的第三层用法在于，表示客气，猜测或不确定等软化的语气。我们知道，英文里很多情愿动词 都有这个用法，比如may-might, can-could (将另文介绍)。 客气：Your assistance would be highly appreciated. Would you give me a hand? Would you shut up? 猜测或不确定：Jim would not stay there for a long time. 如果这里用will或is going to 来取代，则表示说话的人有足够的理由或证据做这个判断，Jim计划中不会呆太久，或他这次没打算呆太久。用would只表示一种猜测，基于对Jim这个人一贯做法的了解，而不是瞎猜的。言下之意就是说，（以Jim这个人 的一贯做法），他是不会在那儿呆太长时间的。 由此引出would的第四种用法，表示一种倾向和一贯做法。比如：I would say I don't like Bush's administration. 这里省略的潜台词是，（如果你一定要我下一个
should的用法： should用来提出建议和忠告，后边加动词原形，否定句直接在should后边加not. 例如：I think you should eat less junk food. 我认为你应该少吃垃圾食品。 She drives a lot and she seldom walks. So I think she should walk a lot. 她经常开车，很少走路。所以我认为她应该多走路。 Students shouldn’t sp end too much time playing computer games. 学生们不应当花太多的时间玩计算机游戏。 学习向别人提建议的几种句式： （1）I think you should… （2）Well, you could… （3）Maybe you should … （4）Why don’t you…? （5）What about doing sth.? （6）You’d better do sth. 练一练 用should或shouldn’t填空 1. I can’t sleep the night before exams. You ______ take a warm shower before you go to bed. 2. Good friends ______ argue each other. 3. There is little milk in the glass. We _______ buy some. 4. They didn’t invite you? Ma ybe you ______ be friendlier. 5. I am a little bit overweight. So I think I _______ do exercises every day. 答案：1. should 2. shouldn’t 3. should 4. should 5. should
1.表示将来的动作或状态。 2.WILL＋原形不定式表示简单将来。 3.would＋原形不定式表示过去将来。 He will go to America tomorrow. 他明天将要去美国。 He said he would finish it on time. 他说他会按时完成它。 4.表示说话者或主语的意愿，决心，意向。 I will do it. 我将做这件事。 He would never give up. 他绝不放弃。 5.WILL用于一些祈使句的附加疑问句。 Let's go to the movies, will you? 让我们去看电影，好吗？ 6.would可表示过去的习惯动作。 Sometimes we would go to the mountains. 有时候我们会到山里去。 7.would可表示客气的请求。 Would you pass me the bottle? 请你递给我那个瓶子好吗？ 8.would可用于假设法，后接原形不定式或完成时。 If I were young, I would go traveling. 要是我年轻，我会去旅行。 If I had had enough money, I would have bought the car. 如果我有足够的钱，我就会买下那部车。 9.惯用语would rather＋原形不定式，表示宁愿。【参见时态，虚拟语气】 I would rather go to school than stay at home. 我宁愿上学去而不愿留在家里。 will是情态动词，后接动词原形。 [表示单纯的将来时, 用于第二、三人称](第一人称的单纯将来时, 英国人用shall, 美国人用will)将(要), 会 Tomorrow will be Wednesday. 明天是星期三。 He will be forty on his next birthday.
一、will的基本用法是： 1)will(would)表意愿，主要用于第一人称；will指将来，would通常用于间接引语，指过去的将来。如： I won't argue with you. 我不愿意跟你争辩。 I said I would do anything for him. 我说过我愿意为他做任何事。 2)will(would)表拒绝，用于否定句。如： The doctor knows I won't be operated on. 大夫知道我不想做手术。 He was wet through, but he wouldn't change. 他全身湿透了，但不想换衣服。 如主语为物，则意为“不起作用”。如： The drawer won't shut. 抽屉关不上了。 My fountain pen wouldn't write. 我的自来水笔不能写字了。 3)will(would)表习惯或反复发生的动作。如： John will fall asleep in church. 约翰做礼拜时老睡觉。 Most often we would find him lying on a couch, reading. 我们经常看到他躺在一张长沙发上看书。 有时重读will就有批评的含义。如： You will keep forgetting things. 你总是不断地忘事儿。 will可表客观事实。如： Gold won't dissolve in hydrochloric acid. 金在盐酸中不溶解。 4)will(would)表请求，指将来，用于疑问句。如： Will you dine with me tomorrow, Lewis? 刘易斯，明天你同我一道吃饭好吗? 如用would，则语气更客气。如： Would you mind closing the door? 请关上门好吗? 5)will(would)用于if引导的条件从句，亦表意愿。如： No, we are not going to quarrel at all if you'll only let me talk. 不，我们根本不会吵架，只要你让我说话。 6)will表料想，指现在或将来；用于进行式时指现在；用于完成式时则指过去。皆用于第二、第三人称。如： This will be the school, I believe. 我想这大概是那所学校。 Hurry up. They will be waiting. 快点儿吧。他们一定在等我们哩。 You will have heard the news, I'm sure.
第17练情态动词should的用法 1. As middle school students, we_____ fllw the public nules whereverwe go. A. would B. should C. might D. could 2. Ants are pretty small. You might think that they______ be rather weak. But what you might not know is that ants are actually very strong for their size. A. need B. can’t C. must 3.We don’t alow taking magazines out, butyou____ copy the article you needon the machine over there. A. can B. must C. should D. would 4. -- Mum may I go to see a film with my cousin? -- You______ go if you have finished your homework. A. must B. need C. should D. can 5.According to the notice, guests at this hotel____ _use the sports center at no extra cost. A. can B. should C. must D. need 6.---Mum, it’s too hot.__ 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 7.- -The expeniment semns difiult. Would yourmind doing it for me? ---Why not do it by yoursel? I____ show you how to do it if necessary. A.can B. needn’t C. must D. shouldn’t 8.Dog___ run though soccer games at the park. It’s dangerous. A. should B. shouldn’t C. need D. needn’t 9.When a virus comes into our body, we get ill The same thing_____also happen to a computer. A. should B. need C. can D. must 10- Look! The man at the school gate____be our headmaster. He is always standing there to welco
would rather 有关would rather的五个重要句型 一、后接动词原形 后接动词原形，表示“宁愿做某事”。如： I’d rather be told the truth than be lied to. 我宁愿听真话，不愿被欺骗。 I’ve already seen that film, so I’d rather see another one. 我已经看过那部电影了，所以还是看部别的吧。 I’ll go if you’re going. If not, I’d rather stay at home. 你去我就去，否则我宁可待在家里。I’d rather do it without anybody’s help. 我宁愿不要任何人帮助，自己干这件事。 “How about a drink?” “I’d rather have something to eat.”“喝一杯怎么样?”“我宁愿来点吃的。” 注：would rather的否定式，通常要将not置于rather之后。如： I’d rather not say anything. 我宁可什么也不说。 二、后接完成式动词 后接完成式动词，表示过去的想法，通常可译为“(本来)宁愿做某事”。如： We went by sea, but I’ d rather have gone by air. 我们是乘船去的，可我本想乘飞机去。“At that time, I would rather have been a factory worker than an animal keeper,” he said. “那时，我宁愿做一个工厂工人，也不愿做动物饲养员，”他说道。 三、后接从句 后接从句时，从句谓语要用虚拟语气。具体说来，有以下两种情况： 1. 指现在或将来用过去时。如： I would rather you didn’t mention the price. 我愿意你别提价钱。 I’d rather you knew that now, than afterwards. 我宁愿你现在知道而不是以后。 Don’t come and see me today—I’d rather you came tomorrow. 今天不要来看我——我希望你们明天来。 Tomorrow’s difficult. I’d rather yon came next weekend. 明天有困难。我希望你下周末来。“We might go for a swim” “No,l’d rather we didn’t.” “我们去游泳吧。”“不，我想我们最好不去。” “Shall I give you a cheque?” “I’ d rather you paid cash.” “我付给您支票行吗?”“我想您最好付现金。” Ann said that Bill wanted to go alone but that she’d rather he went w ith a group. 安说比尔想一个人去，但她宁愿他跟一大群人一起去。 2. 指过去用过去完成时。如： I’d rather he hadn’t told me about it 我宁愿他未告诉我这件事。 Kate went by car and I’d rather she hadn’t. 凯特是坐汽车去的，我倒愿意她不是坐汽车去的。 I’d rather she had asked me before borrowing the car. 我真希望她先问我一声再借车。注：有时用于虚拟语气语境中。如： If I’d lived in 1400, I’d rather have been a knight than a monk. 如果我生活在1400年，我宁愿当骑士，不当修道士。 If she’d had a chance, she’d rather have lived 100 years ago. 如果有机会她宁愿生活在100年前。
情态动词would的用法归纳 １．Would表示对过去时间的意志、意愿、决心，有"愿、要、偏要"的意思。 1) I promised that I would do my best. 2) I told him not to go ,but he would not listen to me. 2.用于提出提议或邀请提出客气的要求或请求,使语气婉转 Would you like to change a seat It's warmer here.您要不要换一下座位这里暖和些。Would you prefer a hardback edition 您要不要买一本精装本 I would like you to fetch that document for me now.我想请你现在就帮我把那份文件取来。 I would like to know more about your plan. 我想更多地了解一下你的计划。 Would you please lend me your pen 借用一下你的钢笔好吗 What would you like to drink 你想喝点什么 ﹡would you mind + doing句型通常用于表示请求对方做一件有一定麻烦的事情，语气一般都非常客气。注意回答时通常是肯定的，以表示愿意做所要求的事情。 Would you mind filling in this form 请您填一下这张表。 Would you mind repeating what you just said 请把刚才的话重复一遍好吗 ﹡用于委婉地表示自己的意见： I would think the journey will take something like two weeks. 依我看，这次旅程大约需要两个星期。
情态动词shall,should,ought to用法 一、shall 的用法 1.在疑问句中用于征求对方意见，主要用于第一人称(在英国英语中，也用于第三人称)，其意为“要不要”、“…好吗”。如： Shall we meet again tonight? 咱们今晚要不要再碰碰头? Shall they wait for you? 要不要他们等你? 2.在陈述句中表示说话者的允诺、告诫、威胁、命令、规定、必然性等，主要用于第二、三人称。如：You shall suffer for this. 你会为此事吃苦头的。(表威胁) That day shall come．那一天一定会来。(表必然性) You shall hear everything directly you come. 你一来就可听到所有情况了。（表允诺） 注：用于第一人称，则表示决心。如 I shall return. 我一定回来。(表示决心) 二、should 和 ought to 的用法 1.表示均表示“应该”、“按理应当”，有时可互换，只是 ought to 语气更重，较多地反映客观，should 则强调主观看法，用于条件句表示“万一”，还有“竟然”之意。 2.谈论现在的情况，后接动词原形；谈论正在进行的情况，后接动词的进行式；谈论过去的情况，后接动词的完成式。如： He ought not to [should not] do that. 他不应当这样做。 You should [ought to] be listening. 你应该听才对。
He should [ought to] arrived by now. 到现在他们应该已经到了。 3.有时表示推测，语气较肯定，通常是指非常可能的事(因为暗示有一定的事实依据或合乎常理)，而与之相比，may, might, could 等则相对较弱，尤其是 might, coul d。请看1998年一道高考题： “When can I come for the photos? I need the m tomorrow afternoon.” “They _____ be ready by 12:00.” A. can B. should C. might D. need 在四个备选项中，A、B和C均表示推测，但A通常不用于肯定句中表示推测，故不宜选；B和C虽均可用于肯定句表示推测，但根据对话情景顾客下午要照片，如果店主中午12点还不能把照片冲洗出来，那么生意肯定难做成，所以店主应用肯定语气较强的should(=应该)来回答顾客，而不是用语气较弱的might(=有可能)，即应选B 不选C；至于选项D，它作为情态动词通常不用于肯定句，不能选。