Be动词和助动词的用法区别

第一篇：Be动词和助动词的用法区别

1、be动词的用法。be am / is was 单数 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 + ？ 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? 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 / we did./ No, he / we didn’t.特殊疑问句： 疑问词 + did + 主语 + 动词原形 + 其他 + ? When did he / you get up every morning last year?

第二篇：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。）例：Those keys were found in your drawer.（那些钥匙是在你的抽屉里找到的。）例：It can be done much faster in this way.（这件工作用这个方法可以更加快速地做好。）

第三篇：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? 对play football提问: What do they do after school? 对after school提问: When do they play football?

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? 对play football提问: What do they do after school? 对after school提问: When do they play football?

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 my house.(一般疑问句)______ ______ a computer in house?

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.(否定式)There ______ ______ ______ apples on the tree.6.I think he is very old.(否定句)I ______ think he ______ very old.7.Please colour it green.(否定句)______ ______ colour it green.8.We can speak good English.(变否定句)We ______ ______ speak good English.9.Thank you for helping me.(同义句)Thank you for ______ ______.10.There aren’t any pears in thebox.(同义句)There are ______ pears in the box.11.Whose are these clothes?(同义句)

______ ______ are these? 12.Let me look at your book.(同义句)

Let me ______ ______ ______ ______ your book.13.Her sweater is red.(对划线部分提问)______ ______ is her sweater?

14.My pencils are in the pencil-box.(对划线部分提问)______ ______ your pencils?

15.I get up at six every day.(对划线部分提问)______ ______ do you get up every day?

16.There are fifty students in my class.(对划线部分提问)______ ______ students are there in your class? 17.These are cars.(用buses改写成选择疑问句)

Are these cars______ ______ ?

18.The book is in my schoolbag.(变否定疑问句)______ the book in your school-bag?

19.Two boys are in our house.(改为there be句型)

______ ______ two boys in our house.20.Can’t you find the map?(作肯定回答)

______ ,I______.参考答案：

1.Do you 2.Can you,any 3.Is there,your 4.Are there any 5.are not any 6.don’t,is 7.Please don’t 8.can not 9.your help 10.no 11.Whose clothes 12.have a look at 13.What colour 14.Where are 15.What time 16.How many 17.or buses 18.Isn’t 19.There are 20.Yes,can

一、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，already改为yet，and改为or等：

There are some birds in the tree.树上有些鸟。

→There aren’t any birds in the tree.树上没有鸟。

He likes the girl, too.他也喜欢这个女孩。

→He doesn’t like the girl, either.他也不喜欢这个女孩。

We have already seen the film.我们已看过这部电影。

→We have not seen the film yet.我们没有看这部电影。

He likes singing and dancing.他喜欢唱歌和跳舞。

→He doesn’t like singing or dancing.他不喜欢唱歌也不喜欢跳舞。

二、不变谓语动词而变其他词语

有时将肯定句变为否定句时，不改变谓语而改变其他词语：

Both of us went there.我们两人都去了那儿。

→Neither of us went there.我们两人都没去那儿。

Both Jim and Mary can sing this song.吉姆和玛丽都会唱这首歌。

→Neither Jim nor Mary can sing this song.吉姆和玛丽都不会唱这首歌。

All of the books are worth reading.所有这些书都值得读。

→None of the books are worth reading.所有这些书都不值得读。

三、部分否定与完全否定

比较以下句子：

All of us laughed when we heard it.听到这事时我们都笑了。(肯定句)

All of us didn’t laughed when we heard it.听到这事时我们并未都笑。(部分否定)

Not all of us laughed when we heard it.听到这事时我们并未都笑。(部分否定)

None of us laughed when we heard it.听到这事时我们都没笑。(完全否定)

【注】可能涉及部分否定的词语有both, all, always, every等，即not both表示“并非两者都”，not all 表示“并非所有的都”，not always 表示“并非总是”，not every表示“并非每个…都”。

第四篇：Be动词&助动词练习题

Be动词练习题

1.There ________(be)many monkeys in the mountain.2.There_________(be)a beautiful garden in our school.3.There _________(be)some water in the glass.4.There __________(be)some bread on the table.5._______(be)Tom ___________(read)a book now?

6.Where ________(be)your friends yesterday?

7.When _________(do)your father usually _________(go)to work?

8.How old __________(be)you last year?

9.Which dog ________(be)yours?

10.Ten and two ________(be)twelve

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.A: How many days ____ there in a week? B: There ____ seven.A.is, is B.are, are C.is, are D.are, is 3.The boy ____ ill today.A.are B.is C.be D.am 4.What _____ your father _____?

A.do, like

B.is, like

C.are, likes

D.does, like 5._____ you go to school by bus?

A.Are

B.Is

C.Do

D.Does 6.When _____ your birthday?

A.are

B.is

C.do

D.does 7.Which ____ bigger, the sun or the moon? A.are B.is C.be D.× 8.My teacher often _____ shopping on Sundays.A.goes

B.gos

C.go

D.goed 9.Listen!The children_____________.A.sings

B.are singing

C.is singing

D.is sing 10.Her voice ____ like my mother's.A.sounds B.sound C.looks D.look 11.It often rains and the crops ____ fast.A.get B.turn C.grow D.become 12.A: How are you ____ now? B: Much better, thank you.A.getting B.feeling C.making D.turning 13.He _____ swimming.A.don’t likes

B.doesn’t likes

C.not like

D.doesn’t like 14.What ______ they _____ on Saturdays?

A.does, does

B.do, do

C.do, does

D.does, do 15.Yang Ling______do exercise with____.A.doesn’t, us

B.don’t, we

C./, us D.don’t, us

初中英语语法练习题：主谓一致

1.Each of you ______ responsible for the accident.a.am b.be c.is d.are 2.Each man and woman ______ the same rights.a.has b.have c.had d.is having 3.Every means ______ tried but without much result.a.has been b.have been c.are d.is 4.There ______ in this room.a.are too much furniture b.is too many furnitures c.are too much furnitures d.is too much furniture 5.The manager or his assistant ______ planning to go.a.were b.are c.was d.be 6.Not only I but also David and Iris ______ fond of playing basketball.a.am b.is c.are d.was 7.Neither Tom nor his parents ______ at home.a.is b.are c.has d.was 8.Either the dean or the principal ______ the meeting.a.attends b.attend c.are attending d.have attended 9.______ was wrong.a.Not the teacher but the students b.Both the students and the teacher c.Neither the teacher not the students d.Not the students but the teacher

第五篇：be动词 助动词练习

be动词 助动词练习

Be动词练习题

1.There ________(be)many monkeys in the mountain.2.There_________(be)a beautiful garden in our school.3.There _________(be)some water in the glass.4.There __________(be)some bread on the table.5._______(be)Tom ___________(read)a book now?

6.Where ________(be)your friends yesterday?

7.When _________(do)your father usually _________(go)to work?

8.How old __________(be0 you last year?

9.Which dog ________(be)yours?

10.Ten and two ________(be)twelve 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.A: How many days ____ there in a week? B: There ____ seven.A.is, is B.are, are C.is, are D.are, is 3.The boy ____ ill today.A.are B.is C.be D.am 4.What _____ your father _____? A.do, like B.is, like C.are, likes D.does, like 5._____ you go to school by bus? A.Are B.Is C.Do D.Does 6.When _____ your birthday? A.are B.is C.do D.does 7.Which ____ bigger, the sun or the moon? A.are B.is C.be D.×

8.My teacher often _____ shopping on Sundays.A.goes B.gos C.go D.goed 9.Listen!The children_____________.A.sings B.are singing C.is singing D.is sing 10.Her voice ____ like my mother's.A.sounds B.sound C.looks D.look 11.It often rains and the crops ____ fast.A.get B.turn C.grow D.become 12.A: How are you ____ now? B: Much better, thank you.A.getting B.feeling C.making D.turning 13.He _____ swimming.A.don’t likes B.doesn’t likes C.not like D.doesn’t like 14.What ______ they _____ on Saturdays? A.does, does B.do, do C.do, does D.does, do 15.Yang Ling______do exercise with____.A.doesn’t, us B.don’t, we C./, us D.don’t, us