情态动词can-练习

情态动词can的基本用法

我是can。我是一个情态动词，表示说话人的语气或情态，我没有人称和数的变化，在句子中不能单独作谓语，只能和紧挨着我的动词原形一起构成复合谓语。我的基本意思是“能；会”。

一、我的基本用法

1. 表示能力（如体力和脑力方面），意为“能；会”等。例如：Can you speak English? 你会讲英语吗？ Can you play the piano? 你会弹钢琴吗？

2. 表示请求或允许，多用在口语中，意为“可以；能”等。用于疑问句中用来提出要求，用于否定句表示不允许。例如：Can I help you? 我能帮助你吗？You can’t play basketball. 你不能玩篮球。

Can you...？“请你……好吗？”表示说话人的请求；Can I...？“我可以……吗？”用来征求对方是否允许自己做某事。如在句末加上

please一词就显得更有礼貌了。例如： Can you help me, please? 请你帮助我好吗？

3. 表示可能。例如：He can be at home now. 他现在可能在家。The moon can’t a lways be full. 月亮不可能常圆。

4. 表示怀疑。在表达此意时，只能用于一般疑问句中，带有感情色彩。例如： Can it be true? 那会是真的吗？

二、我的句式变化如下：

1. 在变否定句时，直接在我后加上“not”,可缩写成can’t或cannot, 但不能写成cann’t。例如：He can swim. →He can’t swim.

Emma can see the pen on the desk.→Emma cannot see the pen on the desk.

2. 在变一般疑问句时，把我直接移到主语前（原主语的首字母改成小写，第一人称应变为第二人称）即可。例如：

I can see an orange on the table. →Can you see an orange on the table?

其回答可用Yes, OK或Certainly等作肯定回答；用No或Sorry等作否定回答。例如：

—Can you look after my books, please? 你能照看一下我的书吗？—OK. 可以。用Certainly回答。此时语气更为肯定。例如：—Can I see your guitar? 我能看看你的吉它吗？—Certainly. 当然可以。

将下面各组词组成句子

1.________________________（an,aeroplane,hear,Lucy,can ）

2.___________________________(not,he,dance,can)

3.____________________________?(you,can ,see,what )

4.____________________________(can ,see ,not ,we ,you)

5._____________________________. (I ,can ,help ,you )

6._____________________________? (I,can ,do,what)

7._____________________________? (you ,can ,hear me)

8._____________________________? (you ,can ,dance)

(

(完整word版)情态动词can的用法专项练习.doc

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没人能回答那个问题。 It was so dark，we couldn’t see anything．天那样黑我们什么也看不见。 2)可能，可以： He said he couldn’t come．他说他不能来。 I said we could go by boat．我说我们可以坐船去。 2．可以用来代替can，比较委婉地提出请求用法等(a)或是表示惊异不相信等(b)： a．Could you do me a favor? 你能帮我一个忙吗? We could send the parcel by air mail．这包裹可以航空寄去。

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c a n与c o u l d的用法详解及情态动词有关习题 Company Document number：WTUT-WT88Y-W8BBGB-BWYTT-19998

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情态动词－－can, could can的词义表示体力或脑力方面的"能力"或客观上的"可能"。如： Can you ride a bike? Yes，I can.你能骑自行车吗?是的，我能骑。 Can Mr. Smith use chopsticks? No，he can't . 史密斯先生会用筷子吗?不，他不会。 Most women here can read and write now.这里的多数妇女都能识字，也会写字。 In China even barren mountains can be turned into fertile fields. 在中国，荒山也能变成良田。 can用在否定句和疑问句中时在这种句子中，can常可意谓"可能"，表示猜测和推理。如： It surely can't be six o'clock already? 不可能已经六点钟了吧? You can't be hungry so soon，Tom. You've just had lunch. 顿姆，你不可能饿得这么快，你刚吃过午饭。 She cannot be so careless. 她不可能这么粗心。 Where can he be? 他会在什么地方呢? What can he mean? 他会是什么意思呢? It surely can't be six o'clock already? 不可能已经是六点钟了吧? [注一] can加动词的进行时态，也可表示"可能"。如： What can he be doing all this time? 他一直会是在干什么呢? She cannot be playing ping-pong now.她现在不可能在打乒乓球。 [注二] 在日常会话中，can可代替may表示"允许"，may比较正式，如： You can drop in any time. 你随时都可以来串门。 Can I use your basin? of course，you can.我可以用你的脸盆吗?--当然可以。 You can have my seat，I'm going now.我要走了，你坐我的座位吧。 Could could是Call的过去式，表示与过去有关的1)能力和2)可能(在否定和疑问句中)。如： 1)We were sure that he could do the work. 我们肯定他能做这工作。 He was a farmhand. He could not afford to send his son to school. 他是个雇农，他供不起儿子上学。 2)At that time we thought the Story could not be true.那时我们以为所说的事不可能是真的。 [注] could可代替can表示现在，但语气较为婉转。如： could you wait half an hour?请你等半个小时好吗? could you please ring up again at six? 六点钟请你再来电话好吗? could we visit a kindergarten? I've been wanting to see one ever since I came to China.我们可以访问一个幼儿园吗?我自从到中国来以后，一直想看一所幼儿园。 [注二]表示过去的能力并已完成一具体动作时须用were (was) able (to)，不可用could。 I am glad we were able to catch the train. 我很高兴我们能赶上火车。但如未完成一具体动作，则可用could not。如： I am sorry we couldn't (或weren't able to) catch the train. can的形式 can只有现在式can和过去式could两种形式，能表示现在一般和过去一般两种时态，有时也能表示将来。所有其他时态(包括将来)须用be able加动词不定式来表示。如：

情态动词can和could用法详解

情态动词can 和could 用法详解 can 和could 用法详解 1. 表示能力，could 是can 的过去。如： Can you speak English? 你会说英语吗? Could you speak English then? 那时候你会说英语吗? 2. 表示许可，注意以下用法：（1）对于现在或将来的“许可” ，要区分以下两种情况： a. 表示请求允许（即请求别人允许自己做某事），可用can（=may）或could（=might）（注意：这里的could 并不表示过去，而是表示现在，只是语气较委婉）。如： Can [May, Could, Might] I come in? 我可以进来吗? b. 表示给予允许（即自己允许别人做某事），一般只用can（=may），而不能用could或might。如： A: Could [Can] I use your pen? 我可以借用你的钢笔吗? B: Yes, of course you can. 当然可以。（注意: 此处不用Yes, you could）（2）对于过去的“许可” ，也要区分以下两种情况： a. 表示过去一般性允许（即表示某人随时都可以做某事），用can的过去式（即could）。如：When I lived at home, I could watch TV whenever I wanted to. 我住在家里时，想什么时候看电影就可以什么时候看（一般性允许）。 b. 表示过去特定的允许（即表示在过去某一特定情况下允许进行某一活动），则不用could, 而需换成其它表达（如：had permission 或was [were] allowed to）。如： I was allowed to see the film yesterday evening. 昨天晚上允许我去看了电影（特定的允许，所以不能用could）。 3. 表示推测：（1）对现在或将来的推测，can 通常只用于否定句或疑问句中，一般不用于肯定句： It can't be true. 那不可能是真的。 What can they be doing? 他们会在干什么呢? Can it be Jim? 那会是吉姆吗? 但could（可以表示现在）则可用于肯定句中： We could [may, might] go to Guilin this summer. 今年夏天我们可能要去桂林。（将来可能性）You could [may, might] be right, but I don 't think you are. 你可能是对的，但我并不认为你是

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四情态动词Can专项练习（基础题）一．用can填空 1. He_____run . 6.She_____dive. 2. He_____jump. 7.She_____fly. 3. He_____sing. 8.She_____paint. 4. He_____write. 9.She_____dance. 5. He_____read. 10.She_____cook. 11.I_____run . 12.My mother_____dive. 13.His sister_____jump. 14.Sam_____fly. 15.Supergirl_____sing. 16.Kitty_____paint. 17.He_____write. 18.Our teacher_____dance. 19.It_____read. 20.Tom_____cook. 二．选择题 1.Can you _____ a model ship for him? A.makes B.make C.making 2.—Can you _____and answer my questions? --Yes,sir. A.stand up. B.stand down. C sit down. 3.Can you _____ English? A.say B. speak C .tell 4.—How can you _____ ? ---I can go by bus. A.go there B.go to there C. get bus 6. Can you _____ me the way to Jack’s house? A.know B.show C.say 7. Nancy can _____ cakes for her sister. A.makes B. making C.make 8. You can _____bus No.6 at the next stop. A. take B.go C.by （拔高题）将下列句子变为一般疑问句，并作肯定与否定回答。 1.He can run. 2.She can jump. _________________________ _________________________ 3.They can swim. 4.You can dance. _________________________ _________________________ 5.He can write. 6.She can sing. _________________________ _________________________ 7.It can play. 8.They can talk. _________________________ _________________________ 9.She can read. 10.He can fly. _________________________ _________________________ 11.You can dive. 12.It can draw. _________________________ _________________________ 13.They can skate. 14.He can paint.

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情态动词专项练习 1. Jean have kept his promise. I wonder why he changed his idea. A. must B. should C. need D. would 解析：选B. “should have +过去分词” 表示“过去本来应该(但没能)做某事”； keep one’s promise 意为“信守诺言”。 2. Jane have come to the party, but she not find the exact time. A. could; could B. might; could C. should; could D. should; would 解析：选A.“ could have+过去分词表示过去本来应该(但没能)做某事”。 3. So many mistakes in your homework! You more careful. A. may be B. had to C. would be D. should have been 解析：选D. “You should have been more careful”. 意为：你本来应该更细心的。 4．Her brother be at home now, because he was seen playing basketball in the stadium just now. A. mustn’t B. needn’t C. can’t D. shouldn't 解析：选C. can’t be at home 意为：不可能在家。 5．---I can’t understand wh y our boss is late. ---He the early bus. A. could miss B. may have missed C. can have missed D. might miss 解析：选B. “may have+过去分词”表示对过去动作的判断，意为：可能做了某事。注意：can表示可能时，只能用于疑问句和反问句。 6. She didn't answer the phone, she ______ asleep. A. may be B. must be C. should have been D. must have been 解析：选D. 表示：对过去发生的事情的肯定推测。 7．The little girl’s eyes were red. She ______. A. may cry B. must cry C. must be cried D. must have been crying 解析：选D. 意为：她刚才肯定一直在哭。对过去某事正发生的推测。 8．He______ his supper now, for the dining hall is still closed. A. can’t be having B. needn’t be having C. mustn’t be having D. shouldn't be having 解析：选A. 对现在正在发生的事情的否定推测。 9．I parked my bike behind the building, but now it is gone. It ________ . A. may be stolen B. must be stolen C. must have been stolen D. must have stolen 解析：选C. 对过去发生的事情的肯定推测的被动式。 10. ______ Mr. Black_______go to work by ferry before the bridge was built? A. Did; used to B. Use; to C. Did; use to D. Does; use to 解析：选C. used to do的疑问式，可以是Used+主语+to do ?或Did +主语+use to do? 11. The hotel is only a stone’s throw away, you ______ take a bus. A. need not to B. not need to C. don't need D. need not 解析：选D. 说话人认为不必要乘车, need 为情态动词。 12. I am busy now, _______ my brother do it for you ? A. Will B. Shall C. Must D. May 解析：选B. 在疑问句中shall 用于第三人称，也表示征求意见。 13. ---You needn’t do it right now, need you? ---Yes I am afraid I ______ . A. need B. needn’t C. must D. mustn’t 解析：选C. Yes的意思是：不。意为：恐怕我必须现在就做。 14.My English-Chinese dictionary has disappeared . Who _____ have taken it? A. should B. must C. could D. would 解析：选C. could/can have done 用于否定推测和疑问推测。 15. ---The room is so dirty._______ we clean it? ----Of course.