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.
He has a lot of money.
含有一般动词从肯定句变为否定句时，不可直接在一般动词之后加not，必须使用助动词do/does/did。且助动词之后用原形动词，因为助动词表示了时态、数的变化。
do—用于主语为I/you/复数
does—用于主语为第三人称单数she/he
did—用于过去式，不分人称和数均可用
肯定句：主语+一般动词…
否定句：主语+do/does/did+not+原形动词
1.The twin brothers go to school by bus.
这对双胞胎兄弟坐公交车上学
（否定句）The twin brothers do not（=don’t）go to school by bus.
2.Sam has dinner at the restaurant.
（否定句）Sam does not（=doesn’t）have dinner at the restaurant.
否定句
a.be动词
He is my boyfriend.
He is not my boyfriend.
b.一般动词
He likes dogs.
He does not like dogs.
含有一般动词的肯定句变成疑问句时，不可将一般动词拿到主语前，必须用助动词do/does/did，且助动词之后用原形动词。
肯定句：主语+一般动词…
疑问句：Do/Does/Did+主语+原形动词…？
1.You visit your grandmother on Sundays.
（疑问句）Do you visit your grandmother on Sundays?
2.He comes from England.
（疑问句）Does he come from England?
do/does/did开头的疑问句（即一般疑问句），其回答
（问句）Do/Does/Did+主语+原形动词…？
（答句）Yes,主语+do/does/did
No,主语+don’t/doesn’t/didn’t
Does the little boy go to school?
Yes,he does./No,he doesn’t.
比较疑问句
a.be动词
She is beautiful.
Is she beautiful? Yes, she is.
b.一般动词
She loves tennis.
Does she love tennis? Yes,she does.
二、be动词、一般动词的过去式
Be动词的过去式
表示：过去时间中发生的状态
1.（现在式）He is busy now.（他现在很忙）
（过去式）He was busy then.（他那时很忙）
2.（现在式）My parents are at home now.
（过去式）My parents were at home yesterday.
时间副词改变，动词也应改变。
was和were
现在式过去式
be动词am
is
are
was
were
be动词过去式的否定句
含be动词过去式was/were的肯定句边否定句时，在be动词后加not.肯定句：主语+was/were
否定句：主语+was/were+not…
1.Mr.Brown was a vet.
Brown先生是一个兽医
（否定句）Mr.Brown was not（=wasn’t）a vet.
2.Joe and Brain were in the living room at that time.
（否定句）Joe and Brain were not （weren’t ）in the living room at that time.
含be 动词过去式was/were 的肯定句变疑问句时，将was/were 拿到主语前，句尾加？即可。
肯定句：主语+was/were … 疑问句：was/were+主语…？
1.Wendy was in the seventh grade last year. Wendy 去年读七年级
（疑问句）Was wendy in the seventh grade last year?
动词开头的疑问句，可用yes 或no 回答，而答句中的主语用代名词。
（问句）Was/Were+主语…？
（答句）Yes,主语+was/were/No,主语+was/were+not.
Were you a pianist? 你是钢琴家吗？
Yes, I was./No, I wasn’t.
1.I walk to school every day .
（过去式）I walked to school yesterday .
2.Mother goes to a supermarket every morning .
（过去式）Mother went to a supermarket yesterday .—主语为第三人称单数时，动词过去式不加s 。
含一般动词过去式的肯定句变否定句时，不可直接在一般动词之后加not ，必须用助动词did （不分人称和数），而助动词之后用动词原形。
肯定句：主语+一般动词…
否定句：主语+did not+原形动词
1.He called you last night.
他昨晚打你电话
（否定句）He did not call you last night.
2.My sister and I watched TV all day yesterday.
（否定句）My sister and I didn’t watch TV all day yesterday.
否定句过去式
a.be动词
She was at home.
She wasn’t at home.
b.一般动词
She studied English.
She didn’t study English.
含有一般动词过去式的肯定句变为疑问句时，不可将一般动词拿到主语前，必须用过去式助动词did，且did之后必须用原形动词。
肯定句：主语+一般动词过去式…
疑问句：Did+主语+原形动词…？
1.His friends went to that movie case week.
（疑问句）Did his friends go to that movie last week.
（答句）Yes,they did./No,they didn’t.
2.Grace wrote a letter to David.
（疑问句）Did Grace write a letter to David?
（答句）Yes, She did./No,she didn’t.
疑问句过去式
a.be动词
He was sick.
Was he sick.
b.一般动词
He did his homework.
Did he do his homework?
三、助动词
所谓助动词是和原形动词合在一起，用来表现时态、语态、语气的动词。此外，助动词也能表示疑问、否定、强调…
1.其后须接原形动词
He can speak English.?
He can speaks English.?
2.现在式中，主语为第三人称单数，词尾不加s
He cans speak English.?
3.形成否定句时，在助动词后加not
He cannot speak English. ?
He doesn’t can speak English. ?
4.形成疑问句时，将助动词拿到主语前
Can he speak English? ?
Does he can speak English? ?
5.两个助动词不能连用
You will can swim soon. ?
（1）can（could）
Can表能力、许可、可能，而could是can的过去式
a.表能力（=be able to）
1.He can speak Japanese, but he cannot（=can’t）write it.
2.I will be able to（此处不能用can）finish the paper and go out to see the exhibition tomorrow.
3.I haven’t been able to recall his name.
我一直想不起他的名字
b.表可能
1.It cannot be true.
那不可能是真的
2.This kind of thing can happen every now and then.
这种事随时可能会发生
3.A quarrel can sometimes cause trouble.
口角有时可能引发问题
4.The light in the sky could be a UFO.
天空中的光可能是外星飞船
c.表许可
1.You can come in if you have a ticket.
如果你有门票就可以进来
2.I’m afraid you can’t park your car here.
恐怕你不能把车停在这儿
3.Can I leave early because I’m not well today?
——Certainly.
因为我今天不舒服，可以早点离开吗？
——可以
d.表请求
1.Can you do me a favor?
你能帮我忙吗？
?Could you do me a favor?是更可气的说法
Could you repeat your cell phone number,please?
请你重复一遍你的手机号码好吗？
（2）may（might）
a.表许可
1.You may not chew gum in class.
你不可以在课堂上嚼口香糖
2.May I interrupt you?——sure.
我可以打断你吗？——当然
b.表可以
1.You may be right but I am against your opinion.
你可能是对的，但是我反对你的意见
2.She might not know that you are here.
她可能不知道你在这儿
?Might可用于现在式或过去式，其表示的可能性较may低
c.表意愿、祈祷
1.May I never see a sight like that again!
愿我不再看到那样的景象
2.May you succeed.
愿你成功
（3）must
a.表义务、命令
1.You must return this book by next Tuesday.
你必须还书在下周二之前
2.You must not talk with your mouth full.
你不可以在嘴巴有东西时说话
?Must I really attend the meeting?
我真的必须参加那场会议吗？
——Yes,you must.
——No, you need not.
——No, you don’t have to.
Must=have to（必须），但must只能用于现在式，其过去式用had to，未来式用will have to，完成时用have had to
1. I had to go to see the doctor because I caught a cold.
我必须去看医生，因为我感冒了
2.You’ll have to replace this light bulb.
你将必须更换这灯泡
3.We have had to stay here because it’s raining heavily outside.
我们必须一直呆在这里，因为外面在下大雨
?口语中，常用have got to 代替have to
1.You’ve got to be more patient,Mary.
Mary你必须更有耐心
b.表推测
1.You must be kidding.
你一定是在开玩笑
2.That is an enormous animal, it must weight a ton.
那是个巨大的动物，它可能有一吨
?表推测是的must，其否定用cannot代替
1.She is very young. She cannot be over twenty.
她非常年轻，她不会超过二十岁
c.表必然
1. All men must die.
人一定会死
（4）will
Will除表未来外，还有下列用法
a.表现在的推测
1.Mom will be downstairs now.
妈妈现在应该在楼下吧
2. That will be his house.
那应该是他家吧
b.表主语强烈的意志
1.The window will not open.
窗户怎么也打不开
2.He will insist on his right.
他将坚持他的权利
c.表习惯、倾向
1.Accidents will happen.
事故将发生
2.A drowning man will catch at a straw.
溺水者将抓住一根草
d.表请求
1.Will you bring me a ladder?
麻烦给我拿个梯子好吗？
2.Will you have one more coffee?
你要不要再来杯咖啡？
（5）would
Would为will的过去式，但would有其独特的用法
a.表客气的请求
1.Would you mind if I sit next to you?
你介意我坐你旁边吗？
2.Would you call me back later?
请稍后打给我好吗？
b.表过去的习惯，常伴随着sometimes/often…频率副词
1.Before they had television, people would listen to the radio.在有电视之前，人们习惯听收音机
2.Susan would often chat with us at this coffee shop.
Susan以前经常和我们在这家咖啡厅聊天
C.表过去的意志
1.You wouldn’t eat carrots when you were a boy.
你小时候不愿吃红葡萄
2.The rusty screw wouldn’t come loose.
生锈的螺丝拧不开
（6）used to
a.表过去的习惯
1.John used to work part-time at a restaurant after school. John以前在下课后常到餐厅打工
2.I used to go for a swim on my lunch break, but now I don’t.我以前常在午休时间去游泳，但现在不去了
3.I used to go to the movies every Sunday.
我以前每个星期天常去看电影
I would often go to the movies when I was young.
我年轻时常去看电影
?Used to 表过去的习惯
Would 表过去动作的重复，其习惯意味较淡
Used to的否定为used not to或didn’t used to。疑问为Used+主语+…？或Did+主语+use to…?
1.He used not to drink.=He didn’t use to drink.
他以前不喝酒
https://www.wendangku.net/doc/1a18286255.html,ed he to go to school with you?=Did he use to go to school with you?
3.We used to talk about our future, didn’t we（或usedn’t we）?
我们以前常谈到未来，不是吗？
b.表过去持续的状态
1.There used to be an old temple here.
从前有一座古塔在这儿
2.He isn’t what he used to be three years ago.
他不在是三年前的他
重点
物+be used to +动词V——（物）被用来
人+be used to+Ving——（人）习惯
人+used to +V——过去习惯于
1. The knife is used to cut bread.
这刀用来切面包
2.I am used to keeping good hours.
我习惯于早睡早起
（7）should
a.表义务
1.You should exercise more and eat less.
你应该多运动少吃
2.The government should spend more money on education.
政府应该花更多的钱在教育上
b.表推测
1.Our guests should be here within an hour.
我们的客人应该在一个小时内会到这儿
2.I sent you e-mail yesterday, so you should know about the invitation.
我昨天发了电子邮件到你，所以你应该知道邀请函的事吧
c.表强烈的惊奇
1.Who should make such a foolish mistake?
谁会犯如此愚蠢的错误？
2.How should I know it?
我为什么应该知道那件事呢？
?重点
Ought to（应该）语气较should强，在口语中常用
1.My bicycle ought to be here because I left it just beside the telegraph pole.
我的脚踏车应该在这儿，因为我停在电线杆旁边
2.You oughtn’t (to) do so.
你不应该这样做
3.Ought we (to) tell him about it.
我们应该告诉他
注意
美式英语口语中，to常省略
（8）need
Need（需要）一般做为动词使用，若当助动词，只能用于否定句或疑问句
1.You don’t need to speak so loud. I hear you very well.
=You need not speak so loud. I hear you very well.
2.Do I need to record the program on the tape?
——No, you don’t need to.
我需要把节目录到光盘上吗？
=Need I record the program on the tape?
——No, you needn’t.
?注意
美语中，need多用于动词用法
（9）dare
助动词dare有敢于之意，过去式为dared，但dare也有动词用法，形成dare+（to）+原形动词
1.She dare not tell the truth.=she does not dare (to) tell the truth.
她不敢说实话
2.I dared not laugh at him at that time.=I didn’t dare (to) laugh at that time.
3.I dare say he is right.
我敢说他是对的
（1）助动词+have+过去分词
1.You may have heard this joke before.
你以前可能听到过这个笑话
2.The keys might have fallen out of your pocket.
钥匙可能掉出了口袋
3.I must have been asleep. I didn’t hear your footsteps.
我一定是睡着了，才没有听到你的脚步声
4.He cannot have survived in the accident.
他不可能在那场意外中幸存
（2）含can的惯用表现
1.cannot help+V-ing表禁不住…
I cannot help crying whenever I hear that song.
每当我听到那首歌我都忍不住哭
2.cannot help but V（不能不…）
I cannot help but think so.
我不能不这样想
3.cannot…too…（无论再…也不为过）
You cannot be too careful when you choose a husband.
你选丈夫是，越小心越好
（3）含may(might)的惯用语
1.may well+V（大可…，恐怕是…）
He may well say so.
他大可这么说
She may well be lost. She has a poor sense of direction.
她恐怕迷路了，她的方向感很差
2.may(might) as well+V…（不妨…）
You’ll never solve that problem. You might as well give up.
你无法解决那问题，不妨放弃吧。
3.may(might) as well V as V…（与其…不如…）
You might as well throw your money into the sea as lend it to him.与其借钱给他不如把钱丢到海里
（4）should用于that子句中
a.表感情因素
1.It is natural that she should want to have children.
她想要孩子是自然的事
2.It’s a pity that he should be sick in bed.
他竟然卧病在床，实在可怜
b.表当然、必要
→此句型中常用的有：
Important（重要的）necessary（必要的）essential（不可或缺）desirable（有期望的）right（正确的）…
1.It is necessary that you (should) take this medicine right away.
你有立刻吃药的必要
2.It is important that you (should) remember this formula.
记住这个公式是重要的
c.表提案、要求
★此句型中常用：
Advise(忠告) decide（决定）demand（要求）insist（坚持）order（命令）propose
（提议）request（要求）suggest（建议）
1.I suggest that the meeting（should）be postponed.
我建议会议延期
2.Mother insists that my brother（should）get up at five every morning.
妈妈坚持要哥哥每天早上五点起来
d.含would的惯用表现
1.would rather…than…（宁愿…不愿…）
I would rather go today than yesterday.= I had rather go today than yesterday.
我宁愿今天去而不愿明天去
2.would like to V（想要…）
I would like to have a date with him. = I want to have a date with him.
= I feel like to hav ing a date with him.
我想和他有个约会
完整word版Be动词助动词练习题
小学英语Be动词、助动词、人称代词主宾格练习 一、选择括号里的词的恰当形式填空。 1、There _________(be)some water in the glass. 2、_______(be)Tom ___________(read) a book now? 3、Please pass_____(we) the ball. 4、When _________ (do) your father usually _________ (go) to work? 5、How old __________ (be)you last year? 6、Which dog ________ (be) yours? /Ten and two ________ (be) twelve. 7、Where ________(be) your friends yesterday? 8、I will give the presents to________(they). 9、Lily is taller than (I)./ Put the desk between (he) and (I). 二、选择填空： 1、My brother ____ a teacher. He ____ his pupils very much. A. is, like B. is, likes C. are, likes D. are, like 2、_____ you go to school by bus? A. Are B. Is C. Do D. Does 3、When _____ your birthday? D. does C. do B. is A. are 4、Which ____ bigger, the sun or the moon? A. are B. is C. be D. / 5、What ______ they _____ on Saturdays?
be动词与助动词的用法
be动词与助动词的用法 1.陈述句:be动词第一人称用am,第二人称用are,第三人称单数用is复数用are. 助动词do一般省略,直接用动词,注意动词时态和人称变化.有时在动词前加do,表示强调,加强语气.如:Do be quiet! 2.疑问句:be动词直接提前,其他部分不变(由陈述句转变).助动词do同样,由省略直接提前放置,后面动词不变,注意do的时态和人称变化. 3.否定句:be动词和助动词do后面加not. be作助动词用的形式如下： ①am, is, are, was, were ②助动词+be：shall be, will be, can be, etc. ③have/has/had + been（完成时） ④am, is, …being（进行时） （1）表达进行时态 句型be + V-ing…（进行时态） 例：What are you reading? （你正在阅读什么？） I am reading a magazine. （我正在阅读杂志。） 例：He will be taking a walk in the park at this time tomorrow morning. （明天早晨此时他将会正在公园散步。） 例：She has been teaching English in our school for years. （她已在我们学校教英语许多年了。） 解说第一例句是表达现在进行时，第二例句是将来进行时，第三例句是现在完成进行时。（2）表达被动语态 句型be +p.p. …（被动语态） 例：English is spoken in both Canada and the United States. （加拿大和美国都讲英语。）
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
Be动词和助动词用法辨析
Be动词和助动词用法区别其实be动词也是助动词（auxiliary verbs）。 英语动词大致可分为三种：助动词（auxiliary verbs），情态动词（modal verbs），实意动词（full verbs）。 助动词（auxiliary verbs）：do，be，have。没有实意，“帮助”别的动词，表示时态，否定和提问。情态动词（modal verbs）：can，must，may。也是“帮助”别的动词，但是有自己的实意。实意动词（full verbs）：play，run，think。其他有实意的动词。 be动词可用作助动词（auxiliary verbs）：1，be+Ving：所有的进行时态，如：2，be+过去分词：被动式。 be动词也可用做实意动词（full verbs）：be[bi]v.有；在；是。 你这样想，一个句子里要有动词吧。再看看它们的名字，“be 动词”和“助动词”， 先说“be动词”，（1）这名字里有动词，说明他是动词，句子里有他就不会有别的动词（除非这些动词以别的形式出现，这是后话）了，（2）“am,is,are,was,were”叫be动词，是因为他们是be的不同形式 再说“助动词”，（1）一定要注意“助”，是帮助的意思，说明他不是动词，只是起到了辅助的作用，所以，他们就一定要与动词同时出现。[记住啊，他们离不开动词，但是动词没有他们也是可以的]
（2）did,do,does只是do的不同形式，根据你所需要的时态来选择（1）用于肯定句，否定句和疑问句 am：第一人称单数（即只与I连用），用于现在时（一般现在，现在进行，只要那时态中是现在的就行）eg:①I am a girl.一般现在时②I am eating an apple.现在进行时 ③I am going to do my homework.[be going to表将来，将来中只有这一种] is：第三人称单数，用于现在时（一般现在，现在进行，只要那时态中是现在的就行）(it就不举例了)eg:①She/He is a girl/boy.一般现在时②He/She is eating an apple.现在进行时③He/She is going to do his homework.[be going to表将来，将来中只有这一种] are：第二人称单数，所有人称复数，用于现在时（一般现在，现在进行，只要那时态中是现在的就行）eg:①You are a girl. We/You(你们)/They are girls.一般现在时②You are eating an apple.We/You(你们)/They are eating apples.现在进行时③We/You(你们)/They are going to do our/your/their homework.[be going to表将来，将来中只有这一种] was：第一人称单数，第三人称单数，用于过去时（一般过去，
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。 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＋。
be动词,情态动词,助动词do
be动词，情态动词，助动词do/does的用法区别及练习 1.由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student. 一般疑问句: Is he a student? 否定句: He is not a student. 画线提问:对he提问: Who is a student? 对a student提问: What is he? or What does he do? 2.由情态动词can, may, should等构成的句子:变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可.例如: 肯定句: She can swim. 一般疑问句: Can she swim? 否定句: She can not swim. 画线提问:对she提问: Who can swim? 对swim提问: What can she do? 3.由行为动词构成的句子:需要加助词do或does.变一般疑问句时把do/does放在句子前面.变否定句时把don’t/doesn’t放在动词的前面。要注意观察动词的形式并对号入座。一般疑问句和否定句的动词三单式都要变回原型。 play-----do plays-----does 例如: 肯定句: They play football after school. He plays football after school. 一般疑问句: Do they play football after school? Does he play football after school? 否定句: They don't (do not) play football after school.He doesn’t’play football after school. 画线提问:对they/he提问: Who plays football after school? 对play football提问: What do they do after school?What does he do after school?对after school提问: When do they play football?When does he play football? 针对性练习 按要求改写句子： 1.I know the answer.(一般疑问句) ______ ______ __________the answer? 2.We can see some birds.(一般疑问句) ______ ______ see ______ birds? 3.He designs clothes.(一般疑问句) ______ he ________ clothes? 4.There are some flowers on the teachers’ desk.(一般疑问句) ______ ______ ______ flowers on the teachers’ desk? 5.There are some apples on the tree.(否定句)
be动词-情态动词及助动词用法
七年级英语双休日作业 班级：姓名：等级 英语句型变化总结练习 1、含有be动词am，is，are构成的句子： 变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。 变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student. 一般疑问句: a student? 否定句: He a student. 肯定句：We are from China. 一般疑问句: from China? 否定句：We from China 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can, may,提到句子的前面,句尾用问号即可. 变否定句时直接在can, may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句:she swim? 否定句: She swim. 3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面. 变否定句时在主语后面加don’t / doesn’t , 谓语用动词原形。例如: 肯定句: They play football after school. 一般疑问句: play football after school? 否定句: They football after school. 肯定句：Tom watches TV every day. 一般疑问句: Tom TV every day? 否定句: Tom TV every day.
注意：变否定句时相关词的改变 肯定句变否定句时，除将谓语变为否定式外，句中其他词语也可能随之改变： 如将some改为any，too和also改为either，and改为or等：There are some birds in the tree. 树上有些鸟。 →There aren’t ______ birds in the tree. 树上没有鸟。 He likes the book, too. 他也喜欢这本书。 →He doesn’t like the book, ______. 他也不喜欢这本书。He likes singing and dancing. 他喜欢唱歌和跳舞。 →He doe sn’t like singing ______dancing. 他不喜欢唱歌也 不喜欢跳舞。补充练习： 根据句后括号内的要求，填入句中所缺的词： 1. I know the answer. (一般疑问句) ______ ______ know the answer? 2. We can see some birds. (一般疑问句) ______ ______ see ______ birds? 3. There is a computer in the house. (一般疑问句) ______ ______ a computer in the house? 4. There are some flowers on the teachers’ desk. (一般疑问句) ______ ______ any flowers on the teachers’ desk? 5. There are some apples on the tree. (否定式) There ______ ______ ______ apples on the tree. 6. I think he is old. (否定句) I ______ think he ______ old.
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.
人教版七年级上册英语语法知识——助动词do和be动词的用法及区别(无答案)
人教版七年级上册英语语法知识——助动词do和be动词的用法及区别(无答案） 助动词do与be动词的用法及区别 【知识精讲】 I．复习BE动词 1、be动词的用法。 be am / is are 现在时 was were 过去时 单数复数 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。 II 助动词的用法。 1.助动词：帮助一个句子构成否定句、疑问句，不充当任何成分和任何意义。 2.初一年级的助动词一般是do/does. 3.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+
Be动词和助动词的用法区别
1、be动词的用法。 be am / is are 现在时 was were 过去时 单数复数 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。 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+。
be动词和助动词句式
1.be动词（am/is/are） 主语be动词（原形）be动词（过去式） I am was He/she/it is was We/you/they are were 口诀：我用am, 你用are，is用在他她它，所有复数全用are ①肯定和否定句 I am (not) from London. He is(not) a teacher. She is(not) in the dining room. My hair is(not) long. Her eyes are(not) small. ②一般疑问句 Am I a Chinese?——Yes, you are. /No, you aren’t. Is the cat fat? ——Yes, it is. /No, it isn’t. Are they American?——Yes, they are. /No, they aren’t. 表示疑问，一般回答只有两种可能Yes或No，句中没有疑问词。 如何将一个肯定的陈述句改为否定句： 1、看句中有无be动词，如有，把be动词提到句首即可。 2、看句中有无情态动词，如有，把情态动词提到句首即可。 3、如上述二者都没有，就应把助动提到句首。分四个步骤： （1）肯定陈述句中本来是没有助动词的，要加上去，位置在主语（某人/某物）后，动词前。 （2）确定助动词用do、does还是did，根据句中动词，动词是原形的助动词就用do，动词是第三人称单数的助动词就用does，动词用过去式的助动词就有did。
（3）把助动词后提到句首。 （4）原句中动词假如发生变化就要恢复成原形。 有some的要考虑是否要用any 2.助动词（do/does/did） 主语助动词（原形）助动词（过去式）否定形式I/We/you/they do did don’t/didn’t He/she/it does did doesn’t/didn’t ①.Do+非第三人称单数＋动词原形…? do/don't you/they have...?—Yes, I do/No, I don’t. ②.Does+第三人称单数＋动词原形…? does/doesn't he/she have...?—Yes, he does./No, he doesn’t. ③Did+所有主格＋动词原形…? did/didn't you/he/she/they go to school?—Yes, i did./No, I didn’t. 3.特殊疑问句 表示疑问，有疑问词开头，回答有很多种可能。常用疑问词：What、Who、When、Which、Why、Whose、How ※What do you/they/we…+动词原形？I/They/We+动词原形… What does he/she/it…He/She/It +(动词＋S)…. What did you/they/we/ he/she/it…I/They/We/ He/She/It +动词过去式Eg:What did you do last weekend? I cleaned my room. Who cleaned my room? Your mother cleaned your room. When do you go to school? I go to school at 7 o’clock. Which one is your book? The red one is my book. Why do you like this book? Because it is funny.
助动词do doesdid 和be动词am is are用法的区别
助动词do \ does \ did 和be动词am \ is \ are 用法的区别 助动词do \ does \ did do是原形，用于一般现在时态中的第一二人称和第三人称的复数（I,you,we,they）； does是do的第三人称单数形式，用于一般现在时态的第三人称单数（he,she,it，姓名）；did是do的过去式，用于一般过去时态的任何人称（I,you,he,she,it,we,they）。 不管怎样，跟在这三个词后面的动词都必须为动词原形。 do \ does \ did+ V.（动词原形） 例如： Do you like meat\ bananas\fish\apples? No,I don`t. Does he like apples? No,he doesn`t. He does like apples. like就是原形 Where did he go yesterday? 他昨天哪儿了？ Did you study English? 你们学过英语吗？ 系动词（be动词）am \ is \ are be是系动词,又称be动词,包括am、is、are三个。 am用于第一人称单数；(I) 第三人称单数用is；(he\she\it) 其他人称全部都用are。(we \they\ you\ 、、、) was （am \ is 的过去式） wasn’t were（are 的过去式） weren’t 练习题： ______she like drinking? ________they play football? ______she beautiful? ________your dog walk in the zoo? ______she come from China? He ________ like pears. ______she from China? _______ your cats eat fish? ______ he watch TV at night? _______ you go to school everyday? ______ we have a good teacher? I ________ have a watch. ______you a student? , .（否定回答） There ______ many boats on the lake. Children ______ happy yesterday. Amy ______ hungry yesterday. ______ they young then? ______ he tall then? , .（否定回答） ______ it sunny? , .（否定回答） ______ it windy yesterday ______ Beijing? , .（否定回答）______ she ______ ______ zoo then? , .（否定回答）
小学be动词的用法及助动词_do
苏打水1. 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student. 一般疑问句: Is he a student? 否定句: He is not a student. 反问句: He is a student, isn't he? He isn't a student, is he? 画线提问: 对he提问: Who is a student? 对a student 提问: What is he? or What does he do? 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句: Can she swim? 否定句: She can not swim. 反问句: She can swim, can't she? She can not swim, can she? 画线提问: 对she提问: Who can swim? 对swim提问: What can she do? 3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面. 例如: 肯定句: They play football after school. 一般疑问句: Do they play football after school? 否定句: They don't (do not) play football after school. 反问句: They play football after school, don't they? They don't play football after school, do they? 画线提问: 对they提问: Who play football after school?
英语中be动词用法和助动词---do
英语中be动词用法和助动词---do 1. 由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如： 肯定句:He is a student. 一般疑问句: Is he a student? 否定句: He is not a student. 反问句: He is a student, isn't he? He isn't a student, is he? 画线提问: 对he提问: Who is a student? 对a student 提问: What is he? or What does he do? 2. 由情态动词can, may, should等构成的句子: 变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可. 例如: 肯定句: She can swim. 一般疑问句: Can she swim? 否定句: She can not swim. 反问句: She can swim, can't she? She can not swim, can she? 画线提问: 对she提问: Who can swim? 对swim提问: What can she do? 3. 由行为动词构成的句子: 需要加助词do或does. 变一般疑问句时把do/does放在句子前面. 例如: 肯定句: They play football after school. 一般疑问句: Do they play football after school? 否定句: They don't (do not) play football after school. 反问句: They play football after school, don't they?
be动词及助动词的一般疑问句专题
济宁七中初一英语培优学案（2） 一般疑问句专题 （命题人：刘金凤赵琦审核人：王之箬） 班级：___________姓名：___________ ※知识点： 概念：一般疑问句是针对一种事物或情况是否属实而提出疑问的句子，回答时一般用yes 或no开头作简略回答。其结构为：Be动词/助动词/情态动词+主语+其他成分？ 读时通常用升调（↗）. ★含 (1)构成：Be（Am/Is/Are）+主语+其他成分?如：Are you Alice?/Is this a map ? /Are those your parents? (2)其肯定及否定回答为:Yes,主语+be./No,主语+be not. （3）含有be(am，is，are)动词的陈述句变为一般疑问句时，要:?Be动词提前?首字母大写?句末加问号？④注意有无人称转换：第一人称（I，my...）→第二人称(you,your...) 例如：This is my ruler.(改为一般疑问句并作肯定及否定回答) _____________________________________________________? Yes,__________ _________./No,___________ ____________. (1)构成 :助动词Do/Does +主语+实义动词原形+其他成分?如：Do you have a soccer ball?/Does your brother have a computer ? /Do they love ping-pong? (2)其肯定及否定回答为:Yes,主语+do/does./No,主语+don’t/doesn’t.
Be动词和助动词的用法区别
Be动词和助动词的用法区别 1、be动词的用法。 be am / is are 现在时 was were 过去时 单数复数 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。 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+ ？
Be动词与助动词
Be动词与助动词 1.英语句子里完整句子结构为：_______________________________ 2.主语是______________。谓语是_________________________。 3.英语句子里完整句子中只能有_____个谓语动词。 4.Be动词的2种基本用法： （1） ____________________________________________________ （2）_____________________________________________________ 5.有Be动词的否定句怎么做？______________________________。 6.有Be动词的疑问句怎么做？______________________________。 7.什么叫实义动词？_______________________________________ 8.有实义动词的否定句怎么做？_____________________________ 9.有实义动词的疑问句怎么做？_____________________________ 10.Be动词和实义动词可以同时出现吗？______________________ 为什么？_______________________________________________ 1.（1）学生对隐形了的“be动词”容易出现语法上的错误。(即“句 中有形容词与介词短语，又没有谓语动词时) 例：我很漂亮。----I beautiful. 这本书在桌子上。----This book on the desk. （2）学生对“this\that”意思的转变不够灵活。 例：这个/这只…… （3）形容词性物主代词与人称代词。 我爸爸是一名教师。---father is a teacher.