be动词的一般现在时

Be动词的一般现在时

句型：

肯定句

否定句

疑问句

1、be动词的意义

Mary is a student. He is at school.

I am a teacher. She is beautiful. She is very beautiful.

2、否定句

肯定：It is a book. → 否定：It is not a book. /It isn’t a book.

I am a student. → I am not a student. /I’m not a student.

You are my friend. →You are not my friend. /You aren’t my friend.

She is my sister.

These are apples.

I am Mary’s deskmate.

他们是我的同班同学。

这本书很有趣。

3、一般疑问句

肯定：I am a student. →一般疑问：Are you a student?

She is from China. Is she from China?

They are nurses.

My book is on the table.

John 是中国人吗？

这本书有趣吗？

回答一般疑问句时，主语必须是代词

4、特殊疑问句（特殊疑问词: what, who, which, where, when, why, how）

What is this? It is a table.

What are they? They are workers.

Who are they? They are my friends.

这个男人是谁？他是我的哥哥。

你的哥哥是干什么的？他是一名医生。

5、there is/are句型

1)There is a book on the table.

There is the book on the table.

There is a bed in this room.

There are many eggs in the kitchen.

2)there 的意思

There is a school there.

6、there is/are的否定句与疑问句

1）一般疑问句

______ ________ many eggs in the kitchen? 厨房里有很多鸡蛋吗？

______ ________ a middle school there? 哪里有一所学校吗？

2）特殊疑问句

How mach ink is there in the ink bottle? There is only a little.

What’s on the table? There are some boxes on it.

你们家里有几口人？有五口人。

碗里有什么？有米饭。

7、Here 的句型

1)Here is/are 这里有……

Here you are. = Here it is.

Here is my boy.

这里有两个男孩子。

这是你的车票。

2)主语为名词时，v.在n.前；主语为代词时，v.在n.后

Here comes the teacher.

Here he comes.

公车来了。

一般动词(除be动词、助动词、情态动词外的动词)的一般现在时

一般动词的否定句和疑问句+do/does

1、主语与一般动词

1）主语为第一、二人称及所有复数形式时

2）主语为第三人称单数时

以s/x/ch/sh/o结尾的v.加-es，如：guess → guesses wash → washes tomato → tomatoes 例外：photo potato 以辅音字母加y结尾的v. 变y为i，再加-es, 如：fly → flies study → studies

2、否定句（在动词前加do not/don’t /does not/doesn’t, v.变原型）

You speak English.

He /She /It speaks English.

She is not a nurse.

I don’t like to go to school.

3、疑问句

1）一般疑问句

Does he walk to school? Do you have an exam in English?

注：have/has表“所有”时，变为否定句时，可直接在have/has后加not,变为疑问句时可直接把have/has放在句首He has two books. He has not/hasn’t/doesn’t have two books. Has he two books? = Does he have two books?

你每天都上学吗？Have you classes every day? I have not classes every day.

他每周开一次会。

2）特殊疑问句

Where do you live? Do you live here?

他怎么上学？他是坐公车上学的吗？

如果对主语提问：Who looks after the baby?

谁住在这里？

一般现在时的用法

1、常发生的动作或存在的状态

He goes to work every day. He teaches Chinese.

2、普遍真理

The earth is round. Birds fly in the sky.

3、有些表示心理状态或感情的v.