助动词练习题
助动词练习
1.If it is fine tomorrow, we ______ a football match.
a. have
b. will have
c. has
d. shall has
2.When he was at school, he ______ early and take a walk before breakfast.
a. will rise
b. shall rise b. should rise would rise
3.In the past 30 years China ______ great advances in the socialist revolution and socialist construction.
a. has made
b. have made
c. had made
d. having made
4.I ______ go to bed until I ______ finished my work.
a. don’t/had
b. didn’t/have
c. didn’t/had
d. don’t/have
5.______ you think he ______ back by dinner time?
a. Do/have come
b. Did/will have come
c. Does/will come
d. Do/will have come
6.He said that he dropped his bag when he ______ for the bus.
a. was runing
b. was running
c. were running
d. is running
7.No sooner ______ he arrived home than he ______ to start on another journey.
a. has/was asked
b. have/were asked
c. had/is asked
d. had/was asked
8.“______ you give me a room for the night?” I asked on arriving at the hotel.
a. Should
b. Can
c. Might
d. May
9.There are nine of them, so ______ get into the car at the same time.
a. they may not at all
b. all they may not
c. they can’t all
d. all they can’t
10.“We didn’t see him at the lecture yesterday.” “He ______ it.”
a. mustn’t attend
b. cannot have attend ed
c. would have not attended
d. needn’t have attended
11.“You realize that you were driving at 100 mph, don’t you?”
“No, officer. I ______. This car can’t do more than 80.”
a. didn’t need to be
b. may not have been
c. couldn’t have been
d. needn’t hav e been
12.he was a good runner so he ______ escape from the police.
a. might
b. succeeded to
c. would
d. was able to
13.If they ______, our plan will fall flat.
a..are co-operating
b. had not co-operated
c. won’t co-operate
d. didn’t
co-operate
14.I hoped ______ my letter.
a. her to answer
b. that she would answer
c. that she answers
d. her answering
15.He ______ live in the country than in the city.
a. prefers
b. likes to
c. had better
d. would rather
16.______ to see a film with us today?
a. Did you like
b. Would you like
c. Will you like
d. Have you liked
17.I’m sorry, but I had no alternative. I simply ______ what I did.
a. must do
b. had to do
c. ought to have done
d. have to do
18.“Time is running out,______?”
a. hadn’t we better got start
b. hadn’t we better get start
b. hadn’t we better get started d. hadn’t we better not started
19.No one ______ that to his face.
a. dares say
b. dares saying
c. dare say
d. dare to say
20.The students in the classroom ______ not to make so much noise.
a. need
b. ought
c. must
d. dare
21.You ______ last week if you were really serious about your work.
a. ought to come
b. ought to be coming
c. ought have come
d. ought to have come
22.The elephants ought ______ hours ago by the keepers.
a. to be fed
b. to feed
c. to being fed
d. to have been fed
23.“I wonder why they’re late.” “They ______ the train.”
a. can have missed
b. could miss
c. may have missed
d. might miss
24.“Tom graduated from college at a very young age.”
“He ______ have been an outstanding student.”
a. must
b. could
c. should
d. might
25.You ______ the examination again since you had already passed it.
a. needn’t have taken
b. didn’t need to take
c. needn’t take
d. mustn’t take
26.He is really incompetent! The letter ______ yesterday.
a. should be finished typing
b. must be finished typing
b. must have finished typing
c. should have been finished typing
27.The boy told his father that he would rather ______ an astronaut.
a. become
b. to become
c. becoming
d. became
28.When we reached the station, the train had still not arrived; so we ______.
a. needed not to hurry
b. needn’t have hurried
c.need not to have hurried
d. didn’t need to hurry
29.Since your roommate is visiting her family this weekend,_____ you like to have
初中英语助动词练习
复习be助动词和dｏ助动词 一．用is , ａm， are ，， dｏ, ｄoｅs , 来填空 1.Ｈｅ＿＿＿__ frｏm a smａll towｎ in Ｎortｈ Chiｎa。 2.They ___＿ kinｄｔｏus 。 3.I _____ ｉｎtｅｒeｓteｄ iｎ playiｎg ｆoｏtｂalｌ. 4.＿___＿ｙou like swｉmming ？ 5._____ ｈe go to ｓｃhool by bｕｓ evｅｒy dａｙ? 6.＿_＿___ tｈey do ｔｈeiｒｈomeworｋ everｙ dａy? 7.___＿＿ Toｍｇood aｔｍatｈs? 8.____ Sａm and Tiｍ like clｉmbｉng tｒees? 9.＿＿__＿ Sｈe ｂｕｓyｉng dｏing her ｈomｅｗｏrk? 10.We _＿___ alｌ middle ｓchoｏl ｓtudents. 二．用like 和likes 填空 1.I __＿__ collecting stamｐs。 2.Ｈe _＿___ flying ｋｉtes on sunｎｙ dａyｓ。 3.Ｔhey _＿____ runniｎg aｎd jumpiｎg。 4.Jacｋ＿_＿_ riｄing ｂicycｌｅs oｎsｕｍmeｒｄays。三．把下列句子变成疑问句,并作肯定和否定的回答 1.He ｉs ｔｈｅ tａlleｓt sｔｕｄentｓｉｎ our claｓs. 2.Tｈey ａre running ｏn the plａygrｏuｎd. 3.Shｅ can siｎｇａnd ｄaｎｃｅ。 4.Tｈｅy must get ｕp early。 5.He ｍay comｅhｅｒe by train。 四．把下列句子变成疑问句,并作肯定和否定的回答 1。Thｅy sｐeａk Ｅｎglish every daｙ. 2. He speakｓEnglｉsh evｅｒy day。 3． The havｅａｌarｇｅ rｏｏｍ。 4。He has ａlargｅｒoom。? 五．区分下列哪些是主系表结构，那些是主谓宾结构 1。Ｗe aｒe Chｉneｓe。 2。Wｅ stuｄy hard。 3. He ｉs a good ｆrｉend oｆ my fａｔhｅr。 4。 He likｅｓｐlaying ｂaｓkｅtball。 ５。They do well in dｒawiｎg pｉcｔurｅｓ.
助动词的用法
助动词 协助主要动词构成谓语动词词组的词叫助动词（Auxiliary Verb）。被协助的动词称作主要动词（Main Verb）。构成时态和语态。助动词是语法功能词，自身没有词义，不可单独使用，它没有对应的汉译，例如：He doesn't like English. 他不喜欢英语。（does是助动词，无词义；like是主要动词，有词义) 最常用的助动词有：be, have, do, shall, will, should, would 他们表示时态，语态，构成疑问句与否定副词not合用，加强语气助动词半助动词 2 半助动词 功能介绍 在功能上介乎主动词和助动词之间的一类结构，称为半助动词。常见的半助动词有be about to, be due to, be going to, be likely to, be meant to, be obliged to, be supposed to, be willing to, have to, seem to, be unable to, be unwilling to等。......情态助动词 情态助动词1.情态助动词包括will(would), shall(should), can(could), may(might), must, need, dare, ought to, used to, had better后接原形不定词。2.情态助动词不受主语的人称和数的限制。3.两个情态助动词不能连用。中文:他将能够及时完成此事。(误)He will can finish it i...... 3 基本助动词 基本助动词基本助动词只有三个：be, do, have, 他们没有词汇意义，只有语法作用，如协助构成进行体，完成体，被动态，否定句，疑问句等。例如He is giving a lecture. 他在作报告He has made a plan. 他已经订了计划The small animals are kept in the cages. 小动物都关在笼子里。 助动词协助主要动词完成以下功用 a. 表示时态，例如： He is singing. 他在唱歌。 He has got married. 他已结婚。 b. 表示语态，例如： He was sent to England. 他被派往英国。 c. 构成疑问句，例如： Do you like college life? 你喜欢大学生活吗？ Did you study English before you came here? 你来这儿之前学过英语吗？ d. 与否定副词not合用，构成否定句，例如： I don't like him. 我不喜欢他。 e. 加强语气，例如： Do come to the party tomorrow evening. 明天晚上一定来参加晚会。 He did know that. 他的确知道那件事。 3）最常用的助动词有：be, have, do, shall, will, should, would 4 具体用法 have的用法 一、have作助动词 形式 主要变化形式：have，has，had 动名词/现在分词：having 1）have +过去分词，构成完成时态，例： He has left for London.他已去了伦敦。
助动词的用法大全
助动词的用法大全 助动词的形式与作用 1)英语常用的助动词(auxiliary verb)有shall，will，should，would，be，have，do等。助动词一般无词义，不能单独作谓语动词。助动词在句中的作用，在于帮助构成各种时态、语态、语气、否定和疑问结构等。如：China has entered a great new era. 中国已进入了一个伟大的新时期。(帮助构成完成时态) Some boys are playing on the grass. 一些男孩正在草地上玩。 (帮助构成进行时态) Mother is written by Gorky. 《母亲》是高尔基写的。 (帮助构成被动语态) We Shall have the football match if it does not rain.如果不下雨，我们就赛足球。(帮助构成将来时态和否定结构) Do you see my point? 你明白我的意思吗?(帮助构成疑问结构) [注]在否定结构中，not须放在助动词后面。 2)助动词加not一般都有简略式，用于口语中。如： is not-isn't would not--wouldn't are not--aren't [B:nt] have not--haven't was not -- wasn't has not--hasn't were not-- weren't [wE:nt] had not--hadn't shall not--shan't [FB:nt] do not--don't [dEunt] will not--won't [wEunt] does not--doesn't
be动词、助动词、情态动词讲解(基础篇)第一讲
be 动词、助动词、情态动词讲解（基础篇） 1、 用单数，反之用复数。 ◆ 句中含有be动词时： 肯定句：主语＋be ＋其他 否定句：主语＋be ＋not ＋其他 一般疑问句：Be ＋主语＋其他＋？ 特殊疑问句：疑问词(what / who / when / where)＋be ＋主语＋其 他＋？ I am a teacher. You are right. She is 16 years old. My father is at home. The students are playing games. My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be 动词用法歌： 我用am，你用are，is 连接他她它。单数名词用is，复数名词全用are。 变疑问，往前提，句末问号莫丢弃；变否定，更容易，be 后not 莫忘记； 疑问否定任你变，句首大写莫迟疑。 ★ be 动词作谓语，它后面一般跟名词、形容词或介词短语。她个子很高。 她在教室里。她是一个高个子的女孩。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”，即，我们常说的“主语+ 谓语+ 其他” 。 ①主语为I 或复数名词、代词时：肯定句：I / We / They / The students
＋动词原形＋其他＋。 We watch TV every night. 变否定：主语＋don't ＋动词原形＋其他＋。 We don't watch TV every night. 一般疑问句Do + 主语+ 动词原形+ 其他+ ？ Do you watch TV every night? Yes, we do. / No, we don 't. 特殊疑问句：疑问词+ do + 主语+ 动词原形+ 其他+ ？ How often do you watch TV? ②主语为单数名词或代词时：肯定句：主语+ 动词第三人称单数形式 + 其他+ 。 He watches TV every night. 否定句：主语+ doesn't+动词原形+其他+。 He doesn't watch TV every night. 一般疑问句：Does + 主语+ 动词原形+ 其他+ ？ Does he watch TV every night? Yes, he does. / No, he doesn 't. 特殊疑问句：疑问词+ does + 主语+ 动词原形+ 其他+ ？ How often does he watch TV? ★主语为单数或不可数名词，谓语要用单数第三人称，反过来，看见动词用了单数第三人称，可以推知主语是单数或不可数名词。 ( )1. How __ ______ your dad help at home? A. do B. does C. is ( )2. ______ goes bad easily in summer. A. Milk B Apples C. Cakes ③过去时的句式（当句子时态为过去时时，动词用过去式，不受主语单复数的影响） 肯定句：主语+ 过去式+ 其他+ 。 He / We got up early every morning last year. 否定句：主语+ didn't + 动词原形+ 其他+ 。 He / We didn't get up early every morning last year. 一般疑问句：Did + 主语+ 动词原形+ 其他+ ？ Did he / you get up early every morning last year? Yes, he
助动词与情态动词-讲解及练习测试题
助动词与情态动词 一、助动词 助动词有be, have, do, will, shall。它们本身没有词义，只和实义动词的一定形式构成复合谓语，用来表示时态和语态，构成否定、疑问及加强语气等。 1、be (am, is, are, were, been) （l）“be + -ing”构成进行时态； （2）“be + 过去分词”构成被动语态； （3）“be + 动词不定式”构成复合谓语： ①表按计划安排要发生的事。The prime minister is to visit Japan next year.总理将于明年访问日本。 ? “do + 动 只有 (1)表示能力，如：He can speak English better than you. (2)在疑问句和否定句中表示“怀疑”、“猜测”或“可能性”，如：Can this green bike be Liu Dong's? (3)表示“许可”时can可以和may换用，如：You can (may) go home now. (4)如果要表示语气婉转，可用could代替can，这时could不再是can的过去式，如：Could you come again tomorrow? (5)can和be able to都可表示能力，两者在意思上没有什么区别。但是can只能有现在式和过去式，而be able to 则有更多的形式，如：He will be able to do the work better. 2、may和might (might为may的过去式)的基本用法 （1）表示允许或征询对方许可，有“可以”之意， 如：You may use my dictionary. 在回答对方说“可以做某事”或“不可以做某事”时，一般多不用may或may not，以避免语气生硬或不容气。而用比较婉转的说法进行回答。如：---- May I use this dictionary? ---- Yes, please. 或---- Certainly. 在请求对方许可时，如果Might I…? 就比用May I…? 语气更婉转些，如：May I have a look at your new
助动词
助动词 协助主要动词构成谓语的词叫助动词（Auxiliary Verb），也叫辅助动词。被协助的动词称作主要动词（Main Verb）。助动词用来构成时态和语态。助动词具有语法意义，但没有词汇意义，不可单独作谓语。它没有对应的汉译，例如： He doesn't like English. 他不喜欢英语。（does是助动词，无词义；like是主要动词，有词义) 外文名 Auxiliary Verb 语言 英语 主要变化形式 如have，has，had 简称 aux.v 谓语 [predicate，简称pred.] 谓语由简单动词或动词短语(助动词或情态动词+主要动词）构成，依据其在句中繁简程度可把谓语分为简单谓语和复合谓语两类。不论何种时态，语态，语气，凡由一个动词构成的谓语都是简单谓语。 定义 最常用的助动词有：be， have， has， do， does， shall， did， will， should，would等。 助动词可以协助主要动词构成时态或者语态，也可构成疑问句和否定句，构成否定句时与否定副词not连用。 分类 半助动词 在功能上介于主动词和助动词之间的一类结构，称为半助动词。 常见的半助动词有： be about to， be due to， be going to， be likely to， be meant to，be obliged to， be supposed to， be willing to， have to， seem to，be unable to， be unwilling to等。...... 情态助动词 1.情态助动词包括will(would)， shall(should)， can(could)， may(might)，must， need， dare， ought to， used to， had better，后接动词原形（原形不定词）。
So+连系动词,情态动词,助动词+主语
1．So+连系动词/情态动词/助动词+主语 1)这一句型是主谓倒装结构，它表示另一主语和前面所陈述的情况有着相同的肯定概念。其中so代替上文中的动作或状态，表示“也是这样”、“也是如此”。如： ①----Jack was in Beijing last winter. ----Really？So was I. (=I was also in Beijing last winter. ) —杰克去年冬天在北京。 —是吗？我也在北京呀。 ② If you go to the seaside for your holiday，so shall I. 如果你去海边度假，我也去。 【注意】so引导的主句中的连系动词、情态动词或助动词的时态一般要和前一句中谓语动词的时态一致，但在上面第二例中，前一分句是if引导的条件状语从句，从句中一般现在式谓语动词代表一般将来时，因此后面so引导的主句要用助动词will或shall。 2)句型 Neither/Nor+连系动词/情态动词/助动词+主语，表示另一主语与前面所述的否定概念相同。neither/nor引导的结构与so引导的结构一样，但前者是否定，后者是肯定。如： ① I have never been to Macao，neither has my husband. 我从未去过澳门，我丈夫也没去过。 ② It you don't stop to rest，nor will they. 如果你们不停下来休息，他们也不停下来。 3)比较另外两个结构相似，意义不同的句型。 ①主语+do/did/does+so。此句型中do so是替代词，可代替上文中的动宾或动状结构，以免重复。如： My Chinese teacher told me to hand in my composition on time and I did so. (=I handed in my composition on time. )
初一助动词练习一
助动词练习一 （）1. _________ he have any apples ? A. Do B. Does C.Is D.Are （）2. She ________ to see documentaries（记录片）. A. isn’t want B. don't want C. doesn't want D.not want （）3. Look at that picture on the wall. __________ you like it? A. Do B. Can C. Could D.Are （）4. He ________ like pears. A. do B. is C. doesn't D. not （）5. —Does the boy want to be an actor? —________. A. Yes, he is B. No, he does C. Yes, he does D. No, he isn't （）6. What time__________ he get home yesterday? A. was B. does C. did D. do （）7. Jack_______ like flying kites______ throwing a frisby. A. don't, or B. doesn't, and C. don't, and D. doesn't, or （）8. ________you _________a good time on your vacation? A. Did; have B. Did; had C. Were; have D. Were; had （）9. Simon likes _____ football, but he doesn’t _____ it well. A. play, plays B. to play, plays C. plays, playing D. playing, play （）10. She_________have to wash the dishes now. A. don't B. not C. doesn't D. can't （）11. ________Colin ________ Chinese history? —Yes, he does. A. Do; like B. Does; likes C. Do; likes D. Is; like （）12. Li Lei ______ lunch at home. A. hasn’t B. haven’t C. don’t have D. doesn’t have
be动词、助动词、情态动词讲解(基础篇)Microsoft Word 文档
be动词、助动词、情态动词讲解 (基础篇) 1、be动词的用法。 英语中，be动词选用单数还是复数，要由主语来定，主语是单数，就用单数，反之用复数。 ◆句中含有be动词时： 肯定句：主语＋be ＋其他 否定句：主语＋ be ＋ not ＋其他 一般疑问句： Be ＋主语＋其他＋？ 特殊疑问句：疑问词（what / who / when / where）＋ be ＋主语＋其他＋？ I am a teacher. You are right. She is 16 years old. My father is at home. The students are playing games. My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be动词用法歌： 我用am，你用are，is 连接他她它。单数名词用is，复数名词全用are。 变疑问，往前提，句末问号莫丢弃；变否定，更容易，be后not莫忘记； 疑问否定任你变，句首大写莫迟疑。 ★ be动词作谓语，它后面一般跟名词、形容词或介词短语。 她个子很高。她在教室里。 她是一个高个子的女孩。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”，即，我们常说的“主语 + 谓语 + 其他”。 ①主语为I 或复数名词、代词时： 肯定句： I / We / They / The students ＋动词原形＋其他＋。 We watch TV every night. 变否定：主语＋ don’t ＋动词原形＋其他＋。 We don’t watch TV every night. 一般疑问句 Do + 主语 + 动词原形 + 其他 + ？ Do you watch TV every night? Yes, we do. / No, we don’t. 特殊疑问句：疑问词 + do + 主语 + 动词原形 + 其他 + ？ How often do you watch TV?
高中英语系动词和助动词精讲及练习
系动词和助动词 一、动词概述 二、连系动词 系动词亦称连系动词（Link Verb），作为系动词，它本身有词义，但不能单独用作谓语，后边必须跟表语（亦称补语），构成系表结构说明主语的状况、性质、特征等情况。系动词后不可接副词，接的是形容词。大致分七种 1状态系动词 用来表示主语状态，只有be一词，例如： He is a teacher. 他是一名教师。（is与补足语一起说明主语的身份。） 2持续系动词 用来表示主语继续或保持一种状况或态度，主要有keep, rest, remain, stay, lie, stand, 例如：He always kept silent at meeting. 他开会时总保持沉默。 This matter rests a mystery. 此事仍是一个谜。 3表像系动词 用来表示"看起来像"这一概念，主要有seem, appear, look, 例如： He looks tired. 他看起来很累。 He seems (to be) very sad. 他看起来很伤心。 4感官系动词 感官系动词主要有feel, smell, sound, taste, 例如： This kind of cloth feels very soft. 这种布手感很软。 This flower smells very sweet. 这朵花闻起来很香。 5变化系动词
这些系动词表示主语变成什么样，变化系动词主要有become, grow, turn, fall（asleep）, get, go, come, run. 例如： He became mad after that. 自那之后，他疯了。 She grew rich within a short time. 她没多长时间就富了。 6终止系动词 表示主语已终止动作，主要有prove, turn out, 表达"证实"，"变成"之意，例如： The rumor proved false. 这谣言证实有假。 The search proved difficult. 搜查证实很难。 His plan turned out a success. 他的计划终于成功了。（turn out表终止性结果） 7．使役动词：let,have,make 使，让… Let /make somebody do sth The teacher lets/makes them clean the classroom after school. Make sb/sth adj. The story makes me happy. The color makes it look beautiful. Have somebody do sth 让某人做某事 Have sth done 让某物被 My mother haves me make the bed. I have my hair cut/washed. 有些动词它们既可以用作实义动词，又可以用作连系动词。另外be还可用作助动词。它们的用法不同，词义和句型结构也有所不同。例如： Look at the blackboard, please.请看黑板。(look用作实义动词) He looks a little tired.他略显疲倦。(look用作连系动词) They are at work.他们在工作。(are用作连系动词) They are working.他们正在工作。(are用作助动词，帮助构成现在进行时) 三、助动词 1、助动词be（am, is, are, was, were, being, been）的用法 （1）be后跟现在分词构成进行时态。 Who is playing the violin?谁在拉小提琴？ She was reading a book then.那时她正在读书。 （2）be后跟过去分词构成被动语态。
初中助动词综合分析(全,含练习和答案)
协助主要动词构成谓语的词叫助动词（Auxiliary Verb），也叫辅助动词。 被协助的动词称作主要动词（Main Verb）。 助动词用来构成时态和语态。 例如： He does not speak English well.（他英语讲得不好。） 句中的does是助动词，既表示一般现在时，又与not一起构成否定形式。 A dog is running after a cat.（一条狗正在追逐一只猫。） 句中的is 是助动词，和run的现在分词一起构成现在进行时。 Did he have any milk and bread for his breakfast ?（他早餐喝牛奶、吃面包吗？） 句中的did是助动词，既表示一般过去时，又和动词have一起构成疑问。 助动词具有语法意义，但没有词汇意义，不可单独作谓语。它没有对应的汉译。 例如：He doesn't like English. 他不喜欢英语。 （does是助动词，无词义；like是主要动词，有词义) 最常用的助动词有：be，have，has，do，does，shall，did，will，should，would 等。
助动词可以协助主要动词构成时态或者语态，也可构成疑问句和否定句，构成否定句时与否定副词not连用。 2. 半助动词： 在功能上介于主动词和助动词之间的一类结构，称为半助动词。 常见的半助动词有： be about to，be due to，be going to，be likely to， be meant to，be obliged to，be supposed to，be willing to，
中考英语情态动词、助动词、系动词专项讲解
中考英语情态动词、助动词、系动词专项讲解 中考英语情态动词、助动词、系动词专项讲解 语法精讲 1.can 和could 2.may 和might 3.need, must和have to 情态动词 4. should和ought to 5. shall, will和would 6. had better 1.can和coul d ① can表示能力，意为“能够，可以”，could用于过去时， 例如He can finish his homework al one. 他可以单独完成作业的。 He couldn’t cook when he was 18 years old. 他18岁时还不会做饭。 ② can表示推测，意为“可能”，在否定句中表示否定的猜测，意为“不可能”，could用于对过去的猜测，can’t be 不可能 例如：He could be cooking at this time yesterday. 他昨天这个时候有可能正在做饭。 He can’t be here be cause he has gone to American.他不可能会在这里，因为他已经去美国了。 ③ can表示请求语气，coul d的语气更委婉， 例如：Can I help you? / Coul d I help you? 有什么我可以为您效吗？ 拓展：be abl e to=can也为“能够”，用来表示能力（有人称和时态的变化） 例如：He is able to d eal with this problem. 他能解决这个问题的。 2.may和 might
① may表示请求，might语气更委婉， 例如：May I help you? Might I sit here? ② may表示肯定的推测，语气比can更弱，might对过去的推测 例如：Mary may be doing her homework now. May can be doing her homework now. can表达的推测语气比may更强，更有把握。 3. must和have to ①must表示命令、责任，意为“一定，必须”，must not/ mustn’t表禁止，“一定不要”， 例如：Children must stay away from strangers.孩子一定要远离陌生人。 You mustn’t play fire because it’s dangerous. 千万不要玩火，因为太危险了。 拓展：在表示禁止时，会用“No Doing”来表示，如No Smoking. / No Walking.等。 ② must表示推测，语气比can更强. 例如：Mr. Liu must be on holiday now because he is wearing pants. 刘老师现在肯定在度假因为他正穿着平底裤呢！（上课是要穿正装的） ③ Must作一般疑问句开头提问时：肯定用must回答，否定用needn’t或d on’t have to回答。 例如：Must I finish my homework now? Yes, you must. / No, you ne edn’t. ④ must 和have to 的区别： a) must没有人称、时态的变化，而have to根据人称、时态的变化，有不同的形式。 b) Must表示主观上必须做，而have to 表示客观需要。
be动词,一般动词和助动词
be动词、一般动词和助动词 一、be动词、一般动词的现在式 （1）be动词的现在式—am/are/is a.是（表状态） We are happy.—我们很高兴 b.在（表存在） She is in America.—她在美国 含be动词（am/are/is）的肯定句变成否定句时，在be动词后加not即可。 肯定句：主语+am/are/is… 否定句：主语+am/are/is+not… He is a good baseball player. 他是一个好棒球员 （否定句）He is not a good baseball player. = He’s not a good baseball player. = He isn’t a good baseball player. 含be动词（am/are/is）的肯定句变成疑问句时，将be动词拿到主语前，句尾加？即可。肯定句：主语+am/are/is… 疑问句：Am/Are/Is+主语…？ 1.That is his camera. 那是他的相机 （疑问句）Is that his camera?
2.The girl is a junior high school student. 那女孩是初中生 （疑问句）Is the girl a junior high school student? 动词开头的疑问句为一般疑问句，可用yes或no回答，而答句中的主语 （问句）Am/Are/Is+主语…？ （答句）Yes,主语+am/are/is No,主语+am/are/is not 1.Is that man your math teacher? Yes, he is./No,he is not. 2.Are you eating your lunch? Yes, I am./No, I’m not. （2）一般动词的现在式 凡是日常生活中具体的动作，如：eat-吃饭，walk-走路及抽象的动作如：like-喜欢，think-思考…皆为一般动词 a.大部分动词加s works/plays b.一般动词词尾为o/s/sh/ch时。加es go-goes/wash-washes/watch-watches c.一般动词词尾为字音+y时，去y加ies cry-cries/study-studies have和has has为have（有，吃）的单数形式 They have a lot of money.
实义动词、系动词、助动词
英语中的系动词亦称联系动词(Link Verb , 它本身有词义 , 但不能单独用作谓语 , 后边必须跟表语(亦称补语 , 构成系表结构说明主语的状况、性质、特征等情况 . 常见的系动词是 be(am,is,are,was,were 最常用的助动词有:be,have,do,shall,will,should,would 助动词自身没有词义 , 不可单独使用 , 例如: He doesn't like English.他不喜欢英语 . (doesn't 是助动词 , 无词义; like 是主要动词 , 有词义 2 助动词协助主要动词完成以下功用 , 可以用来: a. 表示时态 , 例如: He is singing.他在唱歌 . He has got married.他已结婚 . b. 表示语态 , 例如: He was sent to England.他被派往英国 . c. 构成疑问句 , 例如: Do you like college life?你喜欢大学生活吗 ? Did you study English before you came here?你来这儿之前学过英语吗 ? d. 与否定副词 not 合用 , 构成否定句 , 例如: I don't like him.我不喜欢他 . e. 加强语气 , 例如: Do come to the party tomorrow evening.明天晚上一定来参
加晚会 . He did know that.他的确知道那件事 . 半助动词 功能介绍在功能上介乎主动词和助动词之间的一类结构 , 称为半助动词 . 常见的半助动词有 be about to,be due to,be going to,be likely to,be meant to,be obliged to,be supposed to,be willing to,have to,seem to,be unable to,be unwilling to等 . 情态助动词 情态助动词 1.情态助动词包括 will(would,shall(should,can(could,may(might,must,n eed,dare,ought to,used to,had better 后接原形不定词 .2. 情态助动词不受主词的人称和数的限制 .3. 两个情态助动词不能连用 . 中文 :他将能够及时完成此事 .(误 He will can finish it i. 基本助动词 基本助动词基本助动词只有三个:be,do,have, 他们没有词汇意义 , 只有语法作用 , 如协助构成进行体 , 完成体 , 被动态 , 否定句 , 疑问句等 . 例如 He is giving a lecture. 他在作报告 He has made a plan.他已经订了计划 The small animals are kept in the cages.小动物都关在笼子里 .He doesn't smoke. 实义动词就是我们所说的动词 . wjlgwnel 2014-10-29 相关问题 英语:阅读下面短文 , 用括号内所给动词的适当形式填空 , 必要时可加助动词或情态动词 . 2014-10-01
助动词
助动词(auxiliary)主要有两类：基本助动词(primary auxiliary)和情态助动词(modal auxiliary)。基本助动词有三个：do, have和be；情态助动词基本的有十四个：may, might; can, could; will, would; shall, should; must, need, dare, used to, ought to.had better 上述两类助动词的共同特征是，在协助主动词构成限定动词词组时，具有作用词的功能： 1）构成否定式： He didn't go and neither did she. 他没去，她也没去。 The meeting might not start until 5 o'clock. 会议可能直到五点才开始。 2）构成疑问式或附加疑问式： Must you leave right now? 你一定要马上离开吗？ You have been learning French for 5 years, haven't you? 你已经学了五年法语，不是吗？ 3）构成修辞倒装： Nowhere can he obtain any information about his sister. 他无处得到他姐姐的任何消息。 Hardly had he arrived when she started complaining. 他刚到，她就开始抱怨起来。 4）代替限定动词词组： A: Who can solve this crossword puzzle? B: Tom can. A: Shall I write to him? B: Yes, do. can和could的用法 1. 表示能力或客观可能性，还可以表示请求和允许。如： Can you finish this work tonight? 你今晚能完成这项工作吗？ Man can not live without air. 人离了空气不能活。 — Can I go now? — Yes, you can. —我现在可以走了吗？—你可以。 注意：①could也可表示请求，语气委婉，主要用于疑问句，不可用于肯定句，答语应用can（即could 不能用于现在时态的简略答语中）。如： Could I come to see you tomorrow? 我明天能来看您吗？ Yes, you can. （否定答语可用No, I'm afraid not.） 是的，你可以。（不，恐怕不行。） ②can表示能力时，还可用be able to代替。如： I'll not be able to come this afternoon. 我今下午不能来。 2. 表示惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中） Can this be true? 这可能是真的吗？
be动词、助动词、情态动词讲解(基础篇)第一讲
be动词、助动词、情态动词讲解(基础篇) 1、be动词的用法。 be am / is was 单数 用单数，反之用复数。 ◆句中含有be动词时： 肯定句： 主语＋be ＋其他 否定句： 主语＋be ＋not ＋其他 一般疑问句： Be ＋主语＋其他＋？ 特殊疑问句： 疑问词（what / who / when / where）＋be ＋主语＋其他＋？ I am a teacher.You are right.She is 16years old.My father is at home. The students are playing games.My teacher was ill yesterday. There is a picture on the wall. There are two books on the table. ★ be动词用法歌： 我用am，你用are，is 连接他她它。单数名词用is，复数名词全用are。
变疑问，往前提，句末问号莫丢弃；变否定，更容易，be后not莫忘记； 疑问否定任你变，句首大写莫迟疑。 ★ be动词作谓语，它后面一般跟名词、形容词或介词短语。 她个子很高。她在教室里。 她是一个高个子的女孩。 2、助动词的用法。 英语句子按正常语序是“什么人或事物” + “做什么”，即，我们常说的“主语+谓语+其他”。are were 复数现在时过去时英语中，be动词选用单数还是复数，要由主语来定，主语是单数，就①主语为I 或复数名词、代词时： 肯定句： I / We / They / The students ＋动词原形＋其他＋。 We watch TV every night. 变否定： 主语＋don’t ＋动词原形＋其他＋。 We don’t watch TV every night. 一般疑问句Do +主语+动词原形+其他+？ Do you watch TV every night? Yes, we do./No, we don’t. 特殊疑问句： 疑问词+ do +主语+动词原形+其他+？How often do you watch TV?
初中语法讲解系列(附练习)-动词1(实义动词、连系动词、助动词)
动词（I）——实义动词、连系动词、助动词 一、实义动词 又称为行为动词，本身具有比较完整的意义，能够在句中单独作谓语。分为及物动词vt.与不及物动词vi.两大类 1、vt.后要加宾语才能使其意义完整；而vi.后无须加宾语，其本身就能表达完整的意思 2、当vi.后需要接宾语时，要在其后加上一个合适的介词 二、连系动词 简称系动词，后面必须加形容词、名词、不定式或动名词等表语一起构成系表结构 1、表示“状态”的连系动词，如be，look，smell，taste，sound，feel，keep，stay，remain等 2、表示“变化”的连系动词，如become，turn，get，grow等 三、助动词 本身没有意义，不能独立作谓语，它必须和实义动词一起构成时态、语态、否定和疑问等结构。英语中常见的助动词有am，is，are，was，were，do，does，did，have，has，had，will，shall，would等 1、助动词be（am，is，are，was，were）用来帮助构成进行时态和被动语态 am/is/are+ doing sth. 现在进行时 was/ were+ doing sth. 过去进行时 be+过去分词被动语态 2、助动词have（has，have，had）用于帮助构成完成时态 has/have +过去分词现在完成时 had +过去分词过去完成时 3、助动词do（does，do，did）用于帮助构成疑问句和否定句；用于强调句，加强说话语气 Do be quiet，children！ 4、助动词shall和will用于构成将来时，shall仅用于第一人称，will可用于任何人称 will/shall + v.一般将来时 would/should + v.过去将来时