终止性动词与延缓性动词的用法区别
英语中的动词，是学习中的重点，又是难点。英语中的动词有多种分类法。根据其有无含义，动词可分为实义动词和助动词；根据动词所表示的是动作还是状态，可以分为行为动词和状态动词；根据动词所表示的动作能否延缓，分为延续性动词和终止性动词。
可以表示持续的行为或状态的动词，叫做“延续性动词”，也叫“持续性动词”，如：be, keep, have, like, study, live, etc.
有的表示短暂、瞬间性的动词，叫做“终止性动词”，也可叫“短暂性动词”，或“瞬间性动词”，如die, join, leave, become, return, reach, etc.
终止性动词构成的现在完成时，不可以用表示一段时间的状语（如：since 和for引导的短语）来修饰，终止性动词构成的现在完成时，只表示动作发生的因果关系，不能表示动作的延续，因此不能用表示一段时间的状语来修饰。
如可以说：The Red Cross has already started for the earthquake-stricken area.
但不可说：The Red Cross has already started for the earthquake-stricken area for three days.
因为start是终止性动词, 它所表示的动作短促, 当红十字会出发时，start这个动作便结束了, 不可能延续两天。
在十多年的教学生涯中，发现学生对于如何解决这对矛盾不知所措，下面我来归纳一下解决这对矛盾的四种方法。
1. 用ago时间状语短语来代替since或for引导的时间状语：
eg. Mr. Richard has returned from America for two years. (wrong)
Mr. Richard has returned from America since two years ago. (wrong)
应改为: He returned from America two years ago.
2．用It is…since…复合句代替简单句
eg. It has been/is two years since Mr. Richard returned from America.
注意：以上两种办法适用于所有终止性动词。
3．用相应的形容词和副词代替终止性动词。
eg. Mr. Richard has been back from America for two years.
4．用延缓性动词代替终止性动词。
eg. He has gone to the Internet for six hours. (wrong)
应改为:He has been on the Internet for six hours.
但须注意：终止性动词的否定式可以和since 或for 引导的时间状语连用。因为终止性动词的否定表示的是一种可以延续的状态。
eg. I have heard from my friend in Africa for half a year. (wrong)
I haven’t heard from my friend in Africa for half a year.. (right)
此外，终止性动词与延缓性动词在翻译上也不同，很易混淆。下面我再就终止性动词与延缓性动词的含义问题做一归纳：
1. 在连词since引导的时间状语从句中，用终止性动词的过去时或用延缓性动词过去时，
其含义是大不相同的。
A. since所引导的时间状语从句中，如果句子谓语是终止性动词的过去时，则从句表示的时间是从“那一时刻开始”。
eg. He has studied very hard since he came to our school.
自从他来校以来，一贯努力学习。
B. 在since所引导的时间状语从句中，其谓语是延缓性动词的过去时，那么从句所表示的时间是从延缓性动词所表示的动作结束时算起。
eg. I haven’t heard any noise since I slept.
自从我醒后，没听见任何声音。
2．介词for引导的时间状语，在翻译时有两种不同的情况：
A．介词for引导的时间状语和延缓性动词的现在完成时的否定式连用时，有两种不同的含义。
eg. He has not lived there for six months.
他不住在那儿已六个月了。（或：他住在那儿还不到六个月。）
B．介词for引导的时间状语和终止性动词的现在完成时的否定式连用，只有一种含义。eg. Mary has not left here for six months.
玛丽已六个月没有离开过这儿了。
句中含有till 或until 引导的短语或从句，从句中的谓语动词可以是延续性的，也可以是终止性的，但要注意两种情况：
1. 如果主句中动词是延续性的动词，动词肯定或否定都可以，只是含义不同。
eg. He listened to the radio until his father came back.
他听无线电一直到他父亲回来为止。
eg. He didn’t listen to the radio until his father came back..
直到他父亲回来，他才听无线电。
2. 如果主句中的谓语动词是终止性动词，则只能用否定式。
eg. Mr. Smith didn’t marry until he was forty- five. (right)
史密斯先生到四十五岁才结婚。
Mr. Smith married until he was forty-five. (wrong)
动词的时态 一、考点解读 今天我们复习动词的时态，英语的时态是同学们学习英语的难点，在各地的中考题目中许多题型都会有对于动词时态的考查。出现较多的是在单选，完形填空，及其在第二卷中出现的根据汉语意思填词的题目，还包括翻译句子，书面表达。可以说中考题目中大部分都会涉及到动词的时态。既是难点也是重点。在今天的专题中我们复习初中阶段需要掌握的八个时态。 1．一般现在时 2．现在进行时 3．一般过去时 4．过去进行时 5．一般将来时 6．过去将来时 7．现在完成时 8．过去完成时 二、专题梳理 初中阶段所学的英语的时态有8种。英语的时态有很强的表达能力，能使句子的意思明确，能显示细微的差异，能使句子生动逼真。但它们不是相当灵活，在不同的时间中，要用不同的形式，这是与中文大不相同的地方。 1．一般现在时：一般现在时是描述经常性、反复性的动作、性质或状态的时态。 （1）一般现在时的时间状语通常有： ①often ②usually ③always
④seldom ⑤sometimes ⑥every＋时间 ⑦次数＋时间 ⑧on＋时间 ⑨in＋时间 ⑩没有时间，但表示客观存在的事实 （2）一般现在时动词的形式主要用动词原形表示，但如果主语是单数第三人称时，则在动词后加s或es，变成否定句和疑问句时，又将s、es去掉，还为原形。 ①be动词的一般现在时的构成 否定式和疑问否定式如下表所示： ②其他实义动词的一般现在时的构成
其他实义动词一般现在时的构成如下 表所示（以动词work为例） 特别提示： have(has)在表示“有”时，否定形式为haven’t(hasn’t)或have not(has not)，变为疑问句时可直接把have(has)放在句首也可借助于助动词do(does)。当不表示“有”的意思时，其否定句和疑问句只能加助动词do(does)构成。 e.g.Has she any experience in teaching piano lessons？(√) Does she have any experience in teaching piano lessons？(√) 她有教钢琴的经验吗？ Had you a good time going hiking yesterday？(×) Did you have a good time going hiking yesterday？(√) 你昨天徒步旅行玩得开心吗？
初中英语语法过关——动词的分类专项练习精选50题 （Be动词、助动词、情态动词、实义动词） ( )1. This______ my sister and those ______my parents. A. is, is B. is, are C, are, is D. are, are ( )2.—Is that your eraser? —________. A.No, It’s my eraser. B. Yes,it is. C. No,that’s isn’t D. No, that isn’t. ( )3. —Are these your bikes? —No,________ . I think they’re ________ bikes. A. they aren’t, they B. these are, his C. they aren’t，their D. these are, their ( )4. In our school library, there a number of books on science. A. is B. are C. has D. have ( )5. Lucy and Lily ________ a new bike as their tenth birthday present. A．have B．has C．there is D．there are ( )6.—Shall we go for a walk? — ______great. A.Feels B.Sounds C.Turns D.Looks ( )7.—Do you like swimming in winter? —Of course.The water _____ a bit cold at first，but then I am warm and full of energy. A.feels B.tastes C.smells D.looks ( )8.Mom is making dinner. It_____ so nice! A.smells B.tastes C.feels D.sounds ( )9.—Your trainers _____ colourful. —Yes.And they are popular among young people. A.feel B.smell C.taste D.look ( )10.—I can’t stand the smell of the stinking tofu. —Would you like to have a try? I think it _____ quite delicious! A.looks B.sounds C.tastes D.feels ( )11.—Are you interested in shopping online? ——Not so much. We_____see real products but pictures. A.shouldn’t B.can’t C.mustn’t D.needn’t
一、选择题 1．Karen and Helen _______ my brother's friends. I know _______. A．is; her B．are; them C．are; her D．is; them 2．Kay looked _________ at the guests who said that the food she cooked tasted _________. A．happily; wonderfully B．happily; wonderful C．happy; wonderful D．happy; wonderfully 3．I don’t have a baseball, but Alan A．do B．does C．have D．has 4．—Listen! I can hear someone __________ for help. —Is there __________? A．calling; anything wrong B．call; anything wrong C．calling; wrong anything D．call; wrong anything 5．Our school basketball team ________ in the final of the basketball competition. Another team from No.5 Middle School ________ doing very well too. A．is; isn’t B．are; aren’t C．is; are D．are; is 6．—Why ______ you so busy these days? —Because they arrived ______ London ______ the morning of July1. A．are; in , in B．are; in , on C．do; on , in D．do; at , on 7．A number of visitors ________visiting our school. The number of them________ about 180. A．is;are B．are; is C．is; is D．are; are 8．—William, your hat _______ nice. —Thanks. A．buys B．looks C．finds 9．This is a photo of my grandpa. He young A．looks B．feels C．sounds D．hears 10．Lily and Lucy _______ their mother. They have big eyes and yellow hair. A．like both B．both are like C．both like D．are both like 11．—He’s never been late for school. —________________. A．So have I B．So am I C．Neither have I D．Nor am I 12．In the past he often made his sister____, but now he is often made ___by his sister. A．to cry; to cry B．cry; cry C．to cry; cry D．cry; to cry 13．This my sister and those my brothers. A．is, is B．are, are C．is, are 14．— Tom in the library? —Yes,and his friends Eric and Dale in the library,too. A．Is;are B．Is;is C．Are;is
初中英语语法八大时态 1.结构 肯定句式: 主语+动词原形/动词的第三人称单数+其他 否定句式: 主语+（助动词）don't/doesn't +动词原形+其他 一般疑问句式: Do/Does+主语+动词原形+其他 简略回答: (肯)Yes,主语+do/does (否)No,主语+do/does not 缩写形式: don't = do not doesn't = does not 例句：He often goes swimming in summer. I usually leave home for school at 7 every morning. 2.用法 1）表示经常的、习惯性的动作或存在的状态，常与表示频度的副词连用。 常用的频度副词有：always、often、usually、seldom、never、sometimes, every week (day, year, month…), once a week, on Sundays.频度副词在句中通常放在行为动词之前，系动词、助动词之后。 例如: He often goes swimming in summer. I usually leave home for school at 7 every morning. 2）表示主语具备的性格、特征和能力等。 例如：All my family love football . My sister is always ready to help others . Ann writes good English but does not speak well. 3)表示客观真理、客观存在、自然现象。 例如：The earth moves around the sun. Shanghai lies in the east of China. 4）表示按计划或安排好的，或将要发生的动作，可用一般现在时表将来。 但只限于start,begin,leave,go,come,arrive,return,take place等。 例如：The train leaves at six tomorrow morning. He comes back tonight. 5）在复合句中，当主句是一般将来时，时间或条件状语从句的谓语动词只能用一般现在时来表示将来要发生的动作。 例如：I'll tell him the news when he comes back. If you take the job , they will talk with you in greater details. 1.结构 肯定句式: 主语+动词过去式+其他 否定句式: 主语+（助动词）didn’t +动词原形+其他 一般疑问句式: Did+主语+动词原形+其他
一、选择题 1．Speak louder, ________ you can’t make yourself________. A．and; hear B．or; hear C．and; heard D．or; heard 2．—Do you like watching cooking programs on TV? —No, I don’t , but my twin brother . He's very fond of cooking. A．does B．do C．is D．are 3．Colours can change our moods and make us happy or sad . A．feel B．to feel C．felt D．feeling 4．—________ Mary________ fruit? —Of course. A．Is; like B．Does; likes C．Does; like D．Do; likes 5．Parents always hope their children a happy and healthy life. A．to live B．can live C．living D．should live 6．The woman made her husband_______ outside the gate yesterday afternoon. A．wait B．waiting C．to wait D．waited 7．Coffee is ready. How nice it ______! Would you like some? A．looks B．smells C．sounds D．feels 8．—Let’s _________ the library this afternoon. —Sorry, I want _________ my grandfather. A．go to;to meet B．go to;meeting C．to go to;to meet 9．—What will the weather _______tomorrow? — It is going to_______ . A．be like; rainy B．be like; rain C．like; rain D．like; rainy 10．Lily and Lucy _______ their mother. They have big eyes and yellow hair. A．like both B．both are like C．both like D．are both like 11．The shopping mall near our school _________ for 12 hours a day. It _________ at 9:00 p.m.. A．opens; closes B．opens; is closed C．is open; is closed D．is open; closes 12．In the past he often made his sister____, but now he is often made ___by his sister. A．to cry; to cry B．cry; cry C．to cry; cry D．cry; to cry 13．—Where_______you come from? —I______from Japan A．are; am B．are; come C．do; come 14．Tom and I ________ good friends. He is twelve(12岁). A．are B．am C．is D．be 15．— What kind of home do you ? — A flat three bedrooms. A．live in; with B．live; with C．live in; has D．live; has 16．I have bought a Chinese – English dictionary. When and where_____ you _____ it?
初中英语语法知识梳理－动词 动词是表示动作（study, find, swim 等）或状态（be, like, feel 等）的词。动词具有人称、数量、时态、语态和语态变化。 知识梳理：提纲挈领，抓住重点和难点！ 动词分类：动词有助动词、情态动词、联系动词和行为动词四类。 一）助动词 助动词没有任何含义，不能单独做谓语，只能和行为动词一起构成谓语，帮助行为动词组成各种时态、语态、语气以及疑问或否定形式。常见的助动词有be, do, does, did, have, will, shall 等。具体用法如下： 1、助动词be的用法如下： 1）构成各种进行时态。如： It was raining all day yesterday. 昨天整天下雨。 2）构成被动语态。如： The meeting was held yesterday afternoon. 会议是昨天下午举行的。 3）与不定式连用表示按照计划、预先安排或规定要发生的动作。如： They are to see an English film this evening. 他们今天晚上看英语电影。 2、助动词do的用法如下： 1）构成疑问式或否定式。如： Does he think so? I didn’t say anything about the result. 2)在动词前加上do, does, did表示强调，意为“的确，确实”。如： They do study hard. She does love him. He did want to help the old man. 3、have: 助动词have 的过去式是had。have和had均可与动词过去分词一起构成完成时态。如： He has lived here for three years. As soon as the sun had set they returned. 4、shall, should: 助动词shall只用于第一人称的将来时态；助动词should 是shall的过去式，构成过去将来时。如：I shall send ten letters to my good friend. She wanted to know if I should go to the palace. 二）情态动词 情态动词本身有一定含义，但不能单独作谓语，要和行为动词一起构成谓语。它们也能表明句子的否定、疑问或时态上的区别。常见的情态动词有：can, may, must, need, should等。 表示能力 表示能力一般用can, could。如：Rose can speak now, but she couldn’t a week ago. be able to 也表示能力，它和can 的区别如下：
初中英语语法总结 ( 动词的时态) 11.1 一般现在时的用法 1）经常性或习惯性的动作，常与表示频度的时间状语连用。时间状语：every…, sometimes, at…, on Sunday。例如： I leave home for school at 7 every morning. 每天早上我七点离开家。 2）客观真理，客观存在，科学事实。例如： The earth moves around the sun. 地球绕太阳转动。 Shanghai lies in the east of China. 上海位于中国东部。 3）表示格言或警句。例如： Pride goes before a fall. 骄者必败。 注意：此用法如果出现在宾语从句中，即使主句是过去时，从句谓语也要用一般现在时。例：Columbus proved that the earth is round. 哥伦布证实了地球是圆的。 4）现在时刻的状态、能力、性格、个性。例如： I don't want so much. 我不要那么多。 Ann writes good English but does not speak well. 安英语写得不错，讲的可不行。 比较：Now I put the sugar in the cup. 把糖放入杯子。 I am doing my homework now. 我正在做功课。 第一句用一般现在时，用于操作演示或指导说明的示范性动作，表示言行的瞬间动作。第二句中的now是进行时的标志，表示正在进行的动作的客观状况，所以后句用一般现在时。11.2 一般过去时的用法 1）在确定的过去时间里所发生的动作或存在的状态。例如：时间状语有：yesterday, last week, an hour ago, the other day, in 1982等。例如： Where did you go just now? 刚才你上哪儿去了？ 2）表示在过去一段时间内，经常性或习惯性的动作。例如： When I was a child, I often played football in the street. 我是个孩子的时候，常在马路上踢足球。 Whenever the Browns went during their visit, they were given a warm welcome.
2018初中英语语法之名词的动词意义和用法各位读友大家好，此文档由网络收集而来，欢迎您下载，谢谢 新一轮中考复习备考周期正式开始，中考网为各位初三考生整理了中考五大必考学科的知识点，主要是对初中三年各学科知识点的梳理和细化，帮助各位考生理清知识脉络，熟悉答题思路，希望各位考生可以在考试中取得优异成绩！下面是《2018初中英语语法之名词的动词意义和用法》，仅供参考！ble, ice, duck, flag... 这些简单的英语单词，它们的名词意义就算对初学英语者来说也一定是小菜一碟，但老外经常把它们当做动词用，它们的动词意义和用法你知道吗？ 1. table：名词，桌子；当动词用，是指开会时延期讨论提案等，也就是暂缓审议。 We are tabling this matter until
further notice. 2. pride：名词，荣誉；当动词用，是指感到得意或自豪。例如： We prided ourselves on our good work. I have long prided myself on being a good teacher. 注意：to pride oneself on和to be proud of 或to take pride in 意思相近，只是用法和后面所跟的介词不同而已。例如： They take great pride in her daughter who is now a famous scientist. I am very proud of being a Chinese. 3. carpet：名词，地毯；当动词用，是覆盖的意思。例如： The flower girls carpeted the floor with rose petals before the bride’s entrance. During the winter time my roof is carpeted with white snow. 4. floor：名词，地板；当动词用，
一、选择题 1．—Remember the first time we met, Jim? —Of course I do. You ________ in the library. A．were reading B．have read C．will read D．read 2．— How about going for a drive, Mike? — One moment, please! I __________ cleaning our room soon. A．will finish B．have finished C．finish D．finishes 3．I________ cleaning my room.It’s clean now. A．have finished B．finished C．finish D．will finish 4．It ________ heavily when I left the movie theater. A．rains B．was raining C．is raining D．will rain 5．Dick __________ in America, but he has been ___________ Chinese food since he moved to China. A．used to live; used to eating B．is used to live; used to eat C．is used to live; used to eating D．used to living; used to eat 6．—I don’t understand why you didn’t go to the lecture yesterda y afternoon. —I’m so sorry. But I my homework. A．had done B．was doing C．would do D．am doing 7．Sorry, Jenny isn’t here. She________ up some lights in the garden. A．put B．puts C．is putting D．has put 8．—I'm sorry. There was too much traffic on the road. —Never mind. The meeting________for only 5 minutes. A．has begun B．has stopped C．has been on 9．The Great Wall (长城) ________ long and it ________ a long history (历史). A．has; is B．is; is C．is; has D．have; has 10．They the English role play for the show last night. A．will practice B．practiced C．is practicing D．have practiced 11．— Look after yourself on your way to Gungzhou,dear. — OK, mom.I will call you________get there. A．as soon as B．so that C．because 12．—Surprise! Cindy is singing in the concert. —But she ______. A．will refuse B．refused C．refuses D．has refuse 13．It’s _______today．I think it’s going to________． A．cloud，rain
一、选择题 1．Don’t turn on the TV. Grandma ________. A．sleeps B．is sleeping C．sleep D．are sleeping 2．—Look, Tom's parents look so sad. —Maybe they what's happened. A．knew B．have known C．has known D．will know 3．— How about going for a drive, Mike? — One moment, please! I __________ cleaning our room soon. A．will finish B．have finished C．finish D．finishes 4．I like this dress very much. It soft and smooth. A．feels B．touches C．is felt D．is touched 5．—________ a remake (翻拍) of the famous Disney movie Lion King in July, 2019. — Really? I can't wait to see it. A．There will have B．There is going to have C．There will be 6．— Morning, Mike! Did you sleep well last night? — Yes. I went to bed at 9:30 because there ______ a math test this afternoon. A．was B．will be C．is going to have 7．Which of the following sentences is correct? A．He came in and sat down. B．We all like
一、选择题 1．Tom and Jim __________ in Class 3. A．is B．be C．am D．are 2．— ________ your cousin and her friends like history? —Yes, they ________ it’s very interesting. A．Does; think B．Do ; think C．Do; thinks 3．My mother with me ________ at my grandma’s home ________that snowy night. A．were, at B．was, at C．was, on 4．My parents don’t_______me eat_______junk food. A．like; too many B．want; too much C．ask; too many D．let; too much 5．I tried to make the baby ________by singing, and that worked well at last. A．stop crying B．to stop crying C．stop to cry D．to stop to cry 6．—How much ________ this pair of shoes? —Five dollars. A．am B．is C．are D．be 7．—William, your hat _______ nice. —Thanks. A．buys B．looks C．finds 8．Which of the following sentences is right? A．My books on the desk B．Nice meet you, too C．These are my dictionaries D．Thanks you for your help. 9．—Hey, Jack. Do you want to go to the library? —That ________ great. I love reading. A．hears B．looks C．sounds D．listens 10．—The books on the table_________ Mike’s, r ight? —Yes, they are. A．am B．is C．are 11．This my sister and those my brothers. A．is, is B．are, are C．is, are 12．—________ Mary________ fruit? —Of course. A．Is; like B．Does; likes C．Does; like D．Do; likes 13．Karen and Helen _______ my brother's friends. I know _______. A．is; her B．are; them C．are; her D．is; them 14．— Tom in the library? —Yes,and his friends Eric and Dale in the library,too. A．Is;are B．Is;is C．Are;is 15．— When and where shall we meet? — Let's ________it half past nine.
一、选择题 1．Look! Dave __________ on the phone. A．talks B．are talking C．talk D．is talking 2．My grandfather ________ live in the countryside, but now he ________ living in the city. A．used to; used to B．was used to; gets used to C．used to; is used to D．was used to; used to 3．—Rose, can you give me a hand? —Just a minute. I ______ the followers. A．am watering B．have watered C．watered D．water 4．— How about going for a drive, Mike? — One moment, please! I __________ cleaning our room soon. A．will finish B．have finished C．finish D．finishes 5．— Look at my new watch. —Well, it’s so cool! When and where________you buy it? A．Do B．will C．did D．Are 6．Boys and girls, there ________an English speech competition in two weeks. A．will have B．has C．is going to be D．are going to be 7．—________ a remake (翻拍) of the famous Disney movie Lion King in July, 2019. — Really? I can't wait to see it. A．There will have B．There is going to have C．There will be 8．—Have you written a litter to your brother? —Yes, I have. I________one last Sunday. A．was writing B．wrote C．have written 9．Alice always________her notebooks. She is not tidy. A．lose B．lost C．loses D．found 10．They the English role play for the show last night. A．will practice B．practiced C．is practicing D．have practiced 11．--Look! Someone the classroom. --Well,it wasn't me. I didn't do it. A．is cleaning B．was cleaning C．has cleaned D．will clean 12．Mr Hua ________ to Japan. He’ll come back in two weeks. A．goes B．went C．has gone D．will go 13．He _______ to school by bike, but now he _____ to school on foot. A．used to going, gets used to going B．used to go, gets used to go C．used to go, gets used to going 14．—Do you still play the piano?
初中英语语法专项名词（讲义） 一、名词（n.）表示人、事物或抽象概念的名称的词 （一）名词的分类 名词分为普通名词和专有名词,其中普通名词包括可数名词和不可数名词，可数名词可用作单数，也可用作复数。可数名词包括个体名词（表示一类人或物的个体。如：boy,desk,cat,window）和集体名词（由若干个体组成的集合体。如：family,class,police）。不可数名词包括物质名词（表示无法分为个体的实物。如：water,paper,silk,money）和抽象名词（表示性质、行为、状态、感情或其它抽象概念。如：work,happiness,music,difficulty,housework）专有名词表示个人、地方、机构、组织等。如：Tom,the Great Wall,the Spring Festival,France,the United States）（二）名词的数 1.可数名词有单数和复数两种形式，其复数形式的构成主要有以下几种： （1）一般情况下,在词尾加s. ,dog--dogs,pen--pens,boy--boys （2）以s,x,ch,sh结尾的词名词变复数时,要在词尾加es. ,brush-brushes,bus-buses,box-boxes（es读音为〔iz〕 （3）以"辅音字母＋y"结尾的名词,先变y为i,再加e , family--families, （注：以"元音字母+y"结尾的词，直接在词尾加） （4）以元音字母o结尾的名词，变复数时情况如下： ①加,potato-potatoes ②结尾是两个元音字母的加s,,radio--radios ③某些外来词变复数时词尾加s,eg. piano-pianos ④一些名词的缩写形式变复数时，词尾加s, （photograph）--photos,kilo （kilogram）kilos ⑤zero变复数时，既可加s,也可加／zeroes （5）以f或fe结尾的名词变复数时,先把f或fe变为v,再加es. ,leaf-leaves,half--halves, knife-knives,thief--thieves（res读音为[vz]妻子骑牛拿起刀, wife--wives; calf---calves; knife----knives; 追得贼狼满街跑, thief---thieves; wolf----wolves 碰倒架子丧己命, shelf---shelves; self---selves; life----lives 手帕树叶半空飘. leaf----leaves half----halves （6）有些名词由单数变复数时，不是在词尾加s或es,而是变换其中的字母。,woman--women,policeman--policemen, Englishman--Englishmen,Frenchman--Frenchmen, foot--feet, tooth--teeth, child--children,mouse-mice,Ox-Oxen（公牛） （7）还有一些名词的单数和复数形式相同。 ,Japanese,sheep,deer,fish works （8）另一些名词本身即是复数形式，不可用作单数。eg,people,police,trousers,pants,clothes 另外,①当一个名词作定语修饰另一个名词时，这个名词一般用单数。 apple tree,five apple trees, a girl friend,two girl friends,a twin sister 但是，当man和woman作定语修饰复数名词时，就要用其复数形式。 men teachers,three women doctors ②可用"量词+of+名词复数"这一结构表示可数名词的数量。 room Of students,two boxes Of pencils