早教吧作业答案频道 -->英语-->
常用情态动词的意思与用法
题目详情
常用情态动词的意思与用法
▼优质解答
答案和解析
分类
情态动词有四类: ①只做情态动词:must,can(could),may(might)…… ②可做情态动词又可做实义动词:need,dare ③具有情态动词特征:have(had,has) to,used to ④情态动词表猜测
编辑本段位置
情态动词有一定的词义,但并不完整,必须与动词原形一起构成谓语. I can see you. Come here. 我能看见你,过来吧. He must have been away. 他一定走了. What can I do for you? 我能帮你吗? How dare you treat us like that! 你怎能那样对待我们! I wish I could fly. 好希望我可以飞翔啊.
特点
情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not". 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来.情态动词属非及物动词,故没有被动语态. He could be here soon. 他很快就来. We can't carry the heavy box. 我们搬不动那箱子. I'm sorry I can't help you. 对不起,我帮不上你. 基本助动词与情态助动词最主要的区别之一是:基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想: What have you been doing since? (构成完成进行体,本身无词义) I am afraid I must be going. (一定要) You may have read some account of the matter. (或许已经) 除此之外,情态助动词还有如下词法和句法特征: 1) 除ought和used以外,其他情态动词后面只能接不带to的不定式.如果我们把ought to和used to看做是固定词组的话,那么,所有情态动词无一例外地只能接不带to的不定式: We used to grow beautiful roses. I asked if he would come and repair my television set. 2) 情态助动词在限定动词词组总是位居第一: They need not have been punished so severely. 3) 情态助动词用于第三人称单数现在时的时候,没有词形变化,即其词尾无-s形式: She dare not say what she thinks. 4) 情态动词没有非限定形式,即没有不定式和分词形式,也没有相应的动名词: Still, she needn't have run away. 5) 情态助动词的“时”的形式并不是时间区别的主要标志.在不少场合,情态助动词的现在时和过去时形式都可以表示现在、过去或将来时间: Would you mind very much if I ask you to do something? She told him he ought not to have done it. 6) 情态助动词之间是相互排斥的,即在一个限定动词词组中只能出现一个情态助动词,但有时却可以与have和be基本助动词连用: You should have washed the wound. Well, you shouldn't be reading a novel.
编辑本段用法
首先它是动词,而且不同于行为动词,行为动词表示的是可以通过行为来表达的动作(如写,读,跑),而情态动词只是表达的一种想法(如能,也许,敢). 用法是:情态动词+行为动词原形 例句:I can read this sentence in English. 我能用英语读这句话. 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语. We can be there on time tomorrow.我们明天能按时去那儿. May I have your name? 我能知道你的名字吗? Shall we begin now?我们现在就开始吗? You must obey the school rules.你必须遵守校规. 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would),have (to) ,had better. 情态动词还有一个很重要的用法,即情态动词表推测—— 情态动词表推测的用法小结 (一)情态动词表推测的三种句式 1.在肯定句中一般用must (一定),can, could(可能),might /may(也许,或许). (1)He must/cab/may,might know the answer to this question? 他一定/可能/也许知道这个问题的答案. (2)It is cold in the room. They must have turned off the heating. 屋里很冷,他们肯定把暖气关了. 2.否定句中用can’t / couldn’t(不可能), may not/might not(可能不). (1)It can’t/couldn’t be the headmaster. He has gone to America. 这不可能是校长,他去美国了. (2)He may not/might not know the scientist. 他也许不认识那位科学家. 3.疑问句中用can/could (能……?). (1)Could he have finished the task? 他可能把任务完成了吗? (2)Can he be at home now? 他现在能在家吗? 注:以上三种句式中情态动词的语气按程度都是依次递减的.Might, could并非may, can的过去式,而表示语气较为委婉或可能性较小. (二)情态动词表推测的三种时态 1.对将来情况的推测,用“情态动词 + 动词原形”. (1)She must / may / might / could arrive before 5. 5:00前她一定/可能/也许到. (2)She must/may/might/could walk miles and miles among the hills without meeting anyone. 她一定/可能/也许会在山里一连走好几英里而遇不到一个人. 2.对现在或一般情况的推测,用“情态动词 + be”,“情态动词 +be doing”或“情态动词 + 动词原形”. (1)He must / may / might / could be listening to the radio now. 他一定/可能/也许正在听收音机. (2)He can’t ( couldn’t ) / may ( might ) not be at home at this time. 这个时候他不可能/可能不在家. (3)Mr. Bush is on time for everything .How can ( could ) he be late for the opening ceremony ? 布什先生一向准时,这次开幕式他怎么可能迟到呢? 3.对过去情况的推测,用“情态动词 + have +过去分词”. (1)It must / may / might / could have rained last night .The ground is wet. 地湿了,昨晚肯定/可能/也许下雨了. (2)The door was locked. He can ( could ) not / may ( might ) not have been at home . 门锁着,他不可能/可能不在家. (3)Can / Could he have gotten the book? 难道他找到书了吗? 注:情态动词 should /ought to表推测时,意为“想必会,理应……”但与“have +过去分词”连用时,则又可构成虚拟语气意为“本应该做某事却没做”.例如: (4)It’s seven o’clock. Jack should/ought to be here at any moment. 现在七点钟了,杰克理应随时到达.(推测) (5)She should / ought to have attended your birthday party, but she had to look after her mother in hospital. (虚拟) 她本该出席你的生日晚会的,可是她得在医院照顾她妈妈. (6)Tom should not /ought not to have told me your secret, but he meant no harm. (虚拟) 汤姆本不该告诉我你的秘密,可是他并无恶意.
情态动词有四类: ①只做情态动词:must,can(could),may(might)…… ②可做情态动词又可做实义动词:need,dare ③具有情态动词特征:have(had,has) to,used to ④情态动词表猜测
编辑本段位置
情态动词有一定的词义,但并不完整,必须与动词原形一起构成谓语. I can see you. Come here. 我能看见你,过来吧. He must have been away. 他一定走了. What can I do for you? 我能帮你吗? How dare you treat us like that! 你怎能那样对待我们! I wish I could fly. 好希望我可以飞翔啊.
特点
情态动词无人称和数的变化, 情态动词后面跟的动词需用原形,否定式构成是在情态动词后面加 "not". 个别情态动词有现在式和过去式两种形式, 过去式用来表达更加客气, 委婉的语气, 时态性不强, 可用于过去,现在或将来.情态动词属非及物动词,故没有被动语态. He could be here soon. 他很快就来. We can't carry the heavy box. 我们搬不动那箱子. I'm sorry I can't help you. 对不起,我帮不上你. 基本助动词与情态助动词最主要的区别之一是:基本助动词本身没有词义,而情态助动词则有自己的词义,能表示说话人对有关动作或状态的看法,或表示主观设想: What have you been doing since? (构成完成进行体,本身无词义) I am afraid I must be going. (一定要) You may have read some account of the matter. (或许已经) 除此之外,情态助动词还有如下词法和句法特征: 1) 除ought和used以外,其他情态动词后面只能接不带to的不定式.如果我们把ought to和used to看做是固定词组的话,那么,所有情态动词无一例外地只能接不带to的不定式: We used to grow beautiful roses. I asked if he would come and repair my television set. 2) 情态助动词在限定动词词组总是位居第一: They need not have been punished so severely. 3) 情态助动词用于第三人称单数现在时的时候,没有词形变化,即其词尾无-s形式: She dare not say what she thinks. 4) 情态动词没有非限定形式,即没有不定式和分词形式,也没有相应的动名词: Still, she needn't have run away. 5) 情态助动词的“时”的形式并不是时间区别的主要标志.在不少场合,情态助动词的现在时和过去时形式都可以表示现在、过去或将来时间: Would you mind very much if I ask you to do something? She told him he ought not to have done it. 6) 情态助动词之间是相互排斥的,即在一个限定动词词组中只能出现一个情态助动词,但有时却可以与have和be基本助动词连用: You should have washed the wound. Well, you shouldn't be reading a novel.
编辑本段用法
首先它是动词,而且不同于行为动词,行为动词表示的是可以通过行为来表达的动作(如写,读,跑),而情态动词只是表达的一种想法(如能,也许,敢). 用法是:情态动词+行为动词原形 例句:I can read this sentence in English. 我能用英语读这句话. 情态动词是一种本身有一定的词义,表示说话人的情绪,态度或语气的动词,但不能单独作谓语, 只能和其他动词原形构成谓语. We can be there on time tomorrow.我们明天能按时去那儿. May I have your name? 我能知道你的名字吗? Shall we begin now?我们现在就开始吗? You must obey the school rules.你必须遵守校规. 情态动词数量不多,但用途广泛,主要有下列: can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would),have (to) ,had better. 情态动词还有一个很重要的用法,即情态动词表推测—— 情态动词表推测的用法小结 (一)情态动词表推测的三种句式 1.在肯定句中一般用must (一定),can, could(可能),might /may(也许,或许). (1)He must/cab/may,might know the answer to this question? 他一定/可能/也许知道这个问题的答案. (2)It is cold in the room. They must have turned off the heating. 屋里很冷,他们肯定把暖气关了. 2.否定句中用can’t / couldn’t(不可能), may not/might not(可能不). (1)It can’t/couldn’t be the headmaster. He has gone to America. 这不可能是校长,他去美国了. (2)He may not/might not know the scientist. 他也许不认识那位科学家. 3.疑问句中用can/could (能……?). (1)Could he have finished the task? 他可能把任务完成了吗? (2)Can he be at home now? 他现在能在家吗? 注:以上三种句式中情态动词的语气按程度都是依次递减的.Might, could并非may, can的过去式,而表示语气较为委婉或可能性较小. (二)情态动词表推测的三种时态 1.对将来情况的推测,用“情态动词 + 动词原形”. (1)She must / may / might / could arrive before 5. 5:00前她一定/可能/也许到. (2)She must/may/might/could walk miles and miles among the hills without meeting anyone. 她一定/可能/也许会在山里一连走好几英里而遇不到一个人. 2.对现在或一般情况的推测,用“情态动词 + be”,“情态动词 +be doing”或“情态动词 + 动词原形”. (1)He must / may / might / could be listening to the radio now. 他一定/可能/也许正在听收音机. (2)He can’t ( couldn’t ) / may ( might ) not be at home at this time. 这个时候他不可能/可能不在家. (3)Mr. Bush is on time for everything .How can ( could ) he be late for the opening ceremony ? 布什先生一向准时,这次开幕式他怎么可能迟到呢? 3.对过去情况的推测,用“情态动词 + have +过去分词”. (1)It must / may / might / could have rained last night .The ground is wet. 地湿了,昨晚肯定/可能/也许下雨了. (2)The door was locked. He can ( could ) not / may ( might ) not have been at home . 门锁着,他不可能/可能不在家. (3)Can / Could he have gotten the book? 难道他找到书了吗? 注:情态动词 should /ought to表推测时,意为“想必会,理应……”但与“have +过去分词”连用时,则又可构成虚拟语气意为“本应该做某事却没做”.例如: (4)It’s seven o’clock. Jack should/ought to be here at any moment. 现在七点钟了,杰克理应随时到达.(推测) (5)She should / ought to have attended your birthday party, but she had to look after her mother in hospital. (虚拟) 她本该出席你的生日晚会的,可是她得在医院照顾她妈妈. (6)Tom should not /ought not to have told me your secret, but he meant no harm. (虚拟) 汤姆本不该告诉我你的秘密,可是他并无恶意.
看了 常用情态动词的意思与用法...的网友还看了以下:
语言学书上说“一切语言都有办法把动词性词语全部或一部转成名词性词语(调查[农村]→农村[调查],飞→ 2020-03-30 …
动词ing形式的复合结构作宾语和现在分词做宾补有什么区别?isawTomplayingball,这 2020-05-12 …
英语动词的用法?不是需要朋友讲解语法,是动词分为VI和VT,即及物和不及物动词.但是有些词在字典里 2020-05-14 …
如何来区分动词的意动用法与动词本身的意思比如“善万物之得时”的“善”应该认为是“以……为善”还是直 2020-05-14 …
英语语法:动词+宾语+宾补(形容词)诸如make sth clean(形容词) ,keep sth 2020-05-15 …
从动词运用的角度分析"北国风光,千里冰封,万里雪飘."的描写手法从动词运用的角度分析 2020-06-05 …
有能更让人觉得“没错就是这样”一点的说法么~敬祖是尊敬祖先的话,法天的意思到底是什么呢?法是动词还 2020-06-27 …
询问英语的一个语法BE动词和助动词(DO和DOES)分别是在什么情况下用呢?还有,陈述句中,要怎么 2020-07-13 …
be动词单复数的用法be动词单复数的区别 2020-07-20 …
英语助动词的用法助动词中的do、did、does怎么用,就是说什么时候用do或者did或者does. 2020-12-10 …
相关搜索:常用情态动词的意思与用法