一般现在时中be动词的使用
疑问句中be和do的用法
疑问句中be和do的用法一、疑问句中be动词的用法在英语疑问句中，be动词的用法有着特定的规则和结构。
下面将详细介绍be 动词在不同时态和人称中的正确用法以及相关例句。
1. 一般现在时在一般现在时的疑问句中，be动词要放在主语之前。
当主语是第一人称单数形式（I）时，使用am；第二人称单数或复数形式（you）时，使用are；第三人称单数形式（he/she/it）时，使用is；其他人称复数形式（we/they）使用are。
例句:- Are you a student?- Is he from China?- Are they coming to the party?2. 一般过去时在一般过去时的疑问句中，be动词仍然要放在主语之前。
无论是第一人称单数形式(I)还是第三人称单数形式(he/she/it)，都需要使用was；而第二人称单数或复数形式(you)以及其他人称复数形式(we/they)都需要使用were。
例句:- Were you at the meeting yesterday?- Was she happy with the result?- Were they watching TV all night?3. 将来时将来时态的疑问句中，我们通常会使用助动词will来构造句子，be动词需跟在助动词后面。
例句:- Will you be at the party tomorrow?- Will he be able to finish the project on time?- Will they be coming with us?二、疑问句中do的用法除了be动词，在疑问句中，我们还经常用到助动词do和它的变体does和did。
下面将介绍do的不同形式在疑问句中的正确用法以及相关例句。
1. 一般现在时在一般现在时的疑问句中，我们需要使用助动词do或does来构造问题。
具体规则如下：- 当主语是第一人称单数形式(I)或复数形式(we/they)时，使用do；- 当主语是第三人称单数形式(he/she/it)时，使用does。
一般现在时-Be动词 练习
Lesson6一般现在时（含be 动词句型转换）1.be 动词有三个：am is are ，意思“是，在”。
2.be 动词用法口诀：I 用am,you 用are;is 跟着he/she/it;单数用is,复数用are ,不可数的用is。
3.否定缩写注意：I am not=I’m not you are not=you aren’t he is not=heisn’tevery day一、填空。
be动词句型转换：1.肯定句结构：例句：2.否定句结构：例句：3.一般疑问句结构：例句：口诀：1.肯变否：2.肯变疑：3.回答：二、将以下句子变成否定句。
1.The schoolbag is new.2.She is a lovely girl.3.He is my favourite teacher.4.Mr.King is a nice teacher.5.They are very busy.6.My sister is a student.7.Our father is a basketball player.8.I am Chinese.9.We are hungry and thirsty.10.The apples are sweet.11.This is my brother’s bag.12.Those are his rulers.三、将以下句子变成一般疑问句，并回答。
1.The schoolbag is new.2.She is a lovely girl.3.He is my favourite teacher.4.Mr.King is a nice teacher.5.They are very busy.6.My sister is a student.7.Our father is a basketball player.8.I am Chinese.9.We are hungry and thirsty.10.The apples are sweet.11.This is my brother’s bag.12.Those are his rulers.四、句型转换。
一般现在时的结构和用法
一般现在时的结构和用法
一、一般现在时的结构
1.谓语为be动词（am/is/are）的一般现在时：
结构：主语+ be(am/is/are) + 表语（形容词、名词充当表语）
否定式：主语+ be(am/is/are) + not + 表语（形容词、名词充当表语）
疑问句：Be(am/is/are) + 主语+ 表语（形容词、名词充当表语）?
2.谓语为实义动词（及物动词或不及物动词）的一般现在时：
当主语为第三人称单数时：主语+ 动词第三人称单数形式+ 其他当主语为非第三人称单数时：主语+ 动词原形+ 其他
否定式：
当主语为第三人称单数时：主语+ doesn't + 动词原形+ 其他
当主语为非第三人称单数时：主语+ don't + 动词原形+ 其他
疑问句：
当主语为第三人称单数时：Does + 主语+ 动词原形+ 其他?
当主语为非第三人称单数时：Do + 主语+ 动词原形+ 其他?
特殊疑问句：特殊疑问词+ 一般疑问句?
二、一般现在时的用法
1.描述习惯性或经常性的动作：如“I usually go to bed at 11 pm.”
2.表达客观事实或普遍真理：如“The sun rises in the east.”
3.描述时间表或日程安排：如“The train leaves at 8 am.”
4.在新闻报道或科技文章中描述当前状况：如“The company is developing a new product.”。
be动词的一般现在时有三种形式
be动词的一般现在时有三种形式，即：am, is, are（翻译为“是”）1. 如果主语是第一人称I（我）时，be动词用am。
如：I am a student. 我是一名学生。
I am 还可缩写成I'm。
如：I'm David. 我是大卫。
am 与 not 不能缩写。
如：I am not a bad boy.优质参考资料2. 如果主语是we（我们），you （你，你们）, they （他们，它们，她们）或名词复数（两个以上的人或物）时，be动词必须用are。
如：Are you twelve? 你是十二岁吗？Tom and Lily are good friends. 汤姆和莉莉是好朋友。
They are at school. 他们在学校。
are与主语还可缩写。
优质参考资料如： We are= We're， They are =They're, You are = You're。
而are与 not可缩写成aren't。
如：They aren't students. 他们不是学生。
3. 如果主语是单数名词、不可数名词或单数第三人称代词（he, she, it）时，be动词用is。
如:My mother is a teacher. 我的妈妈是一名老师。
He is a student. 他是一名学生。
is也可与主语缩写,优质参考资料如: He is = He's, My mother is = My mother's 等。
但是This is不可缩写。
而is与not可缩写成 isn't。
如:This isn't a book. 这不是一本书。
4. 句中含有be动词的陈述句变一般疑问句。
把be动词提到句首，be动词要变大写。
注意第一人称变第二人称。
回答时用yes或no表示，结构：Yes, 主语+be动词，No，主语+be动词+not。
初中英语教案Unit1单元语法聚焦
单数
我的 my 你的 your
复数
我们的 our 你们的 your
(1)形容词性物主代词必须置于名词前，修饰名词，作定语。如： my key我的钥匙 his name他的名字
他的 his 她的 her 它的 its
(2)形容词性物主代词与形容词一起修饰名词时，形容词性物主代词要放在形容词的前面。如：
单元语法聚焦
一、一般现在时中be动词的用法 1．be动词的形式 在一般现在时的句子中，be动词有三种形式：am，is，are。 2．be动词的用法 (1)am用于主语为第一人称单数代词I的情况。 (2)is用于主语为第三人称单数代词、可数名词单数或不可数名词的情况。 (3)are用于主语为人称代词复数、第二人称代词或可数名词复数的情况。 3．be动词的缩写 I am＝I'm you are＝you're he is＝he's she is＝she's what is＝what's is not＝isn't it is＝it's are not＝aren't they are＝they're
三、按要求完成下列句子。 11．My name is Li Ming.(改为同义句)
be动词的用法规则
be动词的用法规则一、be动词的基本用法二、be动词在不同时态中的用法2.1 be动词在一般现在时中的用法2.2 be动词在一般过去时中的用法2.3 be动词在一般将来时中的用法三、be动词在不同人称和数上的变化形式四、be动词在其他语境中的常见用法一、be动词的基本用法Be动词是英语中最基础、最常用的助动词之一，表示“是”或“存在”的概念。
它包括am, is, are, was, were等形式，具体选择哪个形式取决于句子主语和所使用的时态。
例如：- I am a student.- He is from Canada.- They were classmates.二、be动词在不同时态中的用法2.1 be动词在一般现在时中的用法：- 在一般现在时肯定句中，第一人称单数使用am，第三人称单数使用is，复数使用are。
例如：I am a teacher. / She is a doctor. / They are students.- 在一般现在时否定句和疑问句中，在am, is后面加not；are后面加not或直接将are提到主语前。
例如：He is not here. / Are you a student? / Is she coming?2.2 be动词在一般过去时中的用法：- 在一般过去时肯定句中，不论人称和数，都使用was来代表单数主语，使用were来代表复数主语。
例如：I was at home. / They were classmates.- 在一般过去时否定句和疑问句中，在was, were后面加not；疑问句将was, were提到主语前。
例如：She was not there. / Were they friends? / Was he talking to you?2.3 be动词在一般将来时中的用法：- 在一般将来时肯定句中，be动词与will连用，形式为will be。
be动词的一般现在时有三种形式1
Are you twelve?你是十二岁吗？
Tom and Lily are good friends.汤姆和莉莉是好朋友。
They are at school.他们在学校。
are与主语还可缩写。如：
We are= We're，They are =They're, You are = You're。而are与not可缩写成aren't。
is也可与主语缩写,如:
He is = He's, My mother is = My mother's等。但是This is不可缩写。而is与not可缩写成isn't。
如:
This isn't a book.这不是一本书。
根据以上叙述我们可以把动词的用法以口诀的形式表述出来：
我（I）是am,
你（you）是are,
B.were;are
C.was;are
D.were;was
4.____your father at work the day＿＿＿＿＿yesterday?
A.Was;before
B.Is;before
C.Was;after
D.Is;after
5.Who was on duty last Friday?____.
如：
They aren't students.他们不是学生。但是am与not不能缩写。
3.如果主语是单数名词、不可数名词或单数第三人称代词（he, she, it）时，be动词用is。
如:
My mother is a teacher.我的妈妈是一名老师。
He is a student.他是一名学生。
The children are playing in the field.
be动词的用法
be动词的用法一、请记住以下口诀：我用am，你用are，is连着他，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。
二、am，is，are 都属于be动词，be是它们的动词原形。
三、be动词的一般现在时有三种形式，即：am, is, are。
具体用法如下：1. 如果主语是第一人称I（我）时，be动词用am。
如：I am a student. 我是一名学生。
I am 还可缩写成I'm。
如：I'm David. 我是大卫。
2. 如果主语是you （你，你们）, they （他们，它们，她们），we（我们）或名词复数（两个以上的人或物）时，be动词必须用are。
如：Are you twelve? 你是十二岁吗？Tom and Lily are good friends. 汤姆和莉莉是好朋友。
They are at school. 他们在学校。
are与主语还可缩写。
如：We are= We're，They are =They're, You are = You're。
而are 与not可缩写成aren't。
如：They aren't students. 他们不是学生。
但是am与not不能缩写。
3. 如果主语是单数名词、不可数名词或单数第三人称代词（he, she, it）时，be动词用is。
如:My mother is a teacher. 我的妈妈是一名老师。
He is a student. 他是一名学生。
is也可与主语缩写,如: He is = He's, My mother is = My mother's等。
但是This is不可缩写。
而is与not可缩写成isn't。
如:This isn't a book. 这不是一本书。
be动词的用法
1．动词be的用法be的时态变化:一般过去时用was/were: 单数（I, she, he, it, 单数名词），不可数名词-wasYou, 复数（we, they）-were一般现在时用am/is/are: I用am，复数和You用are，单数和不可数名词用is一般将来时：1单复数都用will be，强调预测2 be going to 结构强调计划、打算，be动词按一般现在时变化过去分词been现在分词being在句子中，be有两种主要作用：1作为系动词；2做为助动词，与谓语动词一起构成各种时态和被动语态等。
1.1 be动词做系动词系动词，是用来帮助说明主语的动词，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身份、状况、性质、特征等情况。
当be 动词做系动词使用时，主要构成“系动词+表语”的结构，在句子中做谓语。
表语可以是名词、形容词、副词、介词短语等。
整个句子是主系表结构。
如：The man is a science teacher.Mary's new dresses are colorful.She was here/ there. 注意here,there是地点副词，前面不能加介词Mother is in the kitchen now.1.2 be动词做助动词助动词be 有两个基本用法，一是与谓语动词一起构成各种时态，二是构成被动语态。
1.2.1. be+doing（现在分词）：构成进行时态，分为现在进行时和过去进行时。
如：The girls is reading and copying the new words now.Young Tom was always asking questions and trying out new ideas.1.2.2. be+going to do，表示"打算或将要做某事"，be有现在和过去两种形式。
一般现在时中be动词的使用
They are my close friends.She is a nice girl.They are baseball players.That’s a good idea.Moscow is a busy city.They aren’t my notebooks.I am a patient teacher.Cindy is a housewife.Jake is an engineer.Both of her parents are scientists.3. be + 介词短语The flowers are in the vase.She is at home now.Are they from Russia?The teacher and the students are in the classroom.Mark is in front of the room.4. be + 形容词短语My holiday is long enough.They are tired and hot.5. be +副词The game is over.I’m home.They are abroad.What’s up?Time is up.She will be around here.6. 用于表示时间：Today is Sunday.The next match will be at 7.The following holiday is National Day.The business hour is from 9 . to 6 .7. 用于现在进行时：Peter is running in the heavy rain.We are leaving here next Monday.I’m coming to see you.They are taking notes in class.练习：一、阅读下面短文并回答问题：Robert BrownRobert Brown is a student. He is from Italy. He is 21 years old. He studies English every day. Peter is his teacher. Peter is a good teacher. He is kind and patient. Robert and Peter are in the classroom now. They are busy. Peter is at the board. Robert is at his desk. Robert likes his classroom. It is a small room. It is clean and pleasant. The classroom is in a large building.（一）用完整句子回答问题：. —Is Robert a student? —No, he isn’t a student.1. Is Peter a good teacher?2. Are Robert and Peter in the classroom now?3. Are they busy?4. Is Robert at the board?5. Is Peter near the window?6. Is the classroom in a small building?7. Is it a small room?8. Where is Robert from?9. How old is Robert?10. Where are Robert and Peter now?（二）用动词is和are填空：Robert Brown _________ a student. He is from Italy. He ________ 21 years old. He studies English every day. Peter __________ his teacher. Peter ________ a good teacher. He __________ kind and patient. Robert and Peter ___________ in the classroom now. They ___________ busy. Peter _____________ at the board. Robert __________ at his desk. Robert likes his classroom. It ________ a small room. It __________ clean and pleasant. The classroom _____________ in a large building.二、用动词am, is, are完成下列句子：1. Jenny ___________ a good-looking girl.2. My friends ___________ in the library now.3. Pairs ___________ beautiful at night.4. Her hometown ____________ a small village.5. _______ you from Italy?6. They __________ interested in history.7. The Summer Camp _______ exciting.8. ____________ Judy at home?9. Tony’s parents _____________ patient and thoughtful.10. The car ___________in the garage now.11. My mother and I ____________ fond of light music.12. My neighbors ___________ kind to me.13. Math __________ difficult for me to learn well.14. Those chairs ________ not comfortable.15. She __________ shy and silent.16. The bookstore and the cinema ________ on the left.17. Class ___________ over.18. The leaves __________ brown in autumn.19. His hobby _________ playing tennis.20. They ________ twin sisters.21. The dictionary ________ English-English dictionary.22. Her job _______to clean the floor.23. His hair __________ curly and fair24. The Canadian teachers __________ in the meeting hall.25. They __________ different pictures.26. The air in the room ______ clean.27. I________ never late for class.28. The dining hall ___________next to the school gate.29. Her speech __________ successful.30. The trip ___________ safe and interesting.。
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一般现在时中be动词的使用 一．be动词： 动词be (am, is, are)说明身份、年龄、状态等 I am a teacher. I am 21 years old. I’m very healthy. 二、be动词的人称变化： 第一人称I，后面的动词用am; 第三人称he/she/it, 后面的动词用is; 第一人称复数we, 第二人称you, 第三人称复数they，后面的动词用are. 三、be 动词在一般疑问句和否定句中的表达： --- Are you the student from Class Two --- No, I’m not. --- Is he Canadian --- No, he isn’t. --- Are they fond of pop music --- No, they aren’t. 从上面例句中可看出，动词be一般现在时的一般疑问句中把be提到句首，它的否定句式是在be后直接加not。 四、be 动词的具体使用： 1．be + 形容词 I’m very tired. He is handsome and smart. The vegetables are fresh. It’s hot today. The traffic is always heavy. The book is interesting. My trip to Paris is exciting. Their opinion is different from mine. She is kind enough to help me out. My room is rather small. The stories in the book are scary. Sue and Sam are friendly to me. 2. be + 名词
They are my close friends. She is a nice girl. They are baseball players. That’s a good idea. Moscow is a busy city. They aren’t my notebooks. I am a patient teacher. Cindy is a housewife. Jake is an engineer. Both of her parents are scientists. 3. be + 介词短语 The flowers are in the vase. She is at home now. Are they from Russia The teacher and the students are in the classroom. Mark is in front of the room. 4. be + 形容词短语 My holiday is long enough. They are tired and hot. 5. be +副词 The game is over. I’m home. They are abroad. What’s up Time is up. She will be around here. 6. 用于表示时间： Today is Sunday. The next match will be at 7. The following holiday is National Day. The business hour is from 9 . to 6 . 7. 用于现在进行时： Peter is running in the heavy rain. We are leaving here next Monday. I’m coming to see you. They are taking notes in class. 练习：一、阅读下面短文并回答问题： Robert Brown Robert Brown is a student. He is from Italy. He is 21 years old. He studies English every day. Peter is his teacher. Peter is a good teacher. He is kind and patient. Robert and Peter are in the classroom now. They are busy. Peter is at the board. Robert is at his desk. Robert likes his classroom. It is a small room. It is clean and pleasant. The classroom is in a large building. （一）用完整句子回答问题： . —Is Robert a student —No, he isn’t a student. 1. Is Peter a good teacher 2. Are Robert and Peter in the classroom now 3. Are they busy 4. Is Robert at the board 5. Is Peter near the window 6. Is the classroom in a small building 7. Is it a small room 8. Where is Robert from 9. How old is Robert 10. Where are Robert and Peter now （二）用动词is和are填空： Robert Brown _________ a student. He is from Italy. He ________ 21 years old. He studies English every day. Peter __________ his teacher. Peter ________ a good teacher. He __________ kind and patient. Robert and Peter ___________ in the classroom now. They ___________ busy. Peter _____________ at the board. Robert __________ at his desk. Robert likes his classroom. It ________ a small room. It __________ clean and pleasant. The classroom _____________ in a large building.
二、用动词am, is, are完成下列句子： 1. Jenny ___________ a good-looking girl. 2. My friends ___________ in the library now. 3. Pairs ___________ beautiful at night. 4. Her hometown ____________ a small village. 5. _______ you from Italy 6. They __________ interested in history. 7. The Summer Camp _______ exciting. 8. ____________ Judy at home 9. Tony’s parents _____________ patient and thoughtful. 10. The car ___________in the garage now. 11. My mother and I ____________ fond of light music. 12. My neighbors ___________ kind to me. 13. Math __________ difficult for me to learn well. 14. Those chairs ________ not comfortable. 15. She __________ shy and silent. 16. The bookstore and the cinema ________ on the left. 17. Class ___________ over. 18. The leaves __________ brown in autumn. 19. His hobby _________ playing tennis. 20. They ________ twin sisters. 21. The dictionary ________ English-English dictionary. 22. Her job _______to clean the floor. 23. His hair __________ curly and fair 24. The Canadian teachers __________ in the meeting hall. 25. They __________ different pictures. 26. The air in the room ______ clean. 27. I________ never late for class. 28. The dining hall ___________next to the school gate. 29. Her speech __________ successful. 30. The trip ___________ safe and interesting.