一、can的用法can 是情态动词,表示有能力、会做can其后要跟动词原形,并且can没有时态和人称的变化,我来为大家讲解一下关于上海版牛津英语四年级下册知识点?跟着小编一起来看一看吧!

上海版牛津英语四年级下册知识点(上海牛津版四年级上英语知识点总结)

上海版牛津英语四年级下册知识点

一、can的用法

can 是情态动词,表示有能力、会做。can其后要跟动词原形,并且can没有时态和人称的变化。

例如:

I can play ball.

She can draw.

二、have和has的用法

have用于第一人称、第二人称和第三人称复数。

has用于第三人称单数。

例如:

I have a book.

She has a book.

三、some和any

some表示“一些、几个”,常用于肯定句中。将肯定句转变为疑问句或否定句时,需将some转变为any。但在询问别人是否需要某些东西时,还是使用some,不需要要将some改为any。

any表示“任何一个、任何一些”,一般用于疑问句或否定句中。

例如:

I have some milk.

I don't have any milk.

Do you need some milk?

四、's和s'的区别

's表示是某个人、某个单个个体所有的。

s'表示某些人、某个群体所有的。

This is the teacher's office.

This is the teachers' office.

This is a student's book.

This is the students' book.

五、many和much的使用

many修饰可数名词复数,much修饰不可数名词复数。

例如:

How many pens do you have?

How much milk do you have?

六、介绍位置关系

between, in front of, behind, at , next

七、对于价格的提问和回答

How much are they? / How much isit?

They are ...

It is ...

八、以Don't开头的否定祈使句,表示不要做某事,注意没有人称的变化

例如:

Tom, don't walk on the grass.

Don't play with fire, children.

九、询问别人的职业

句型一:What do/does sb. do?

例如:

What do you do?

What does Tom do?

What dose your mother do?

我们要注意,当主语是三单时,助动词要用does。

句型二:What is/are sb.

What are you?

What is Tom?

What is your father?

句型三:What is sb. job?

What is your job?

What is Tom’s job?

What is your father job?

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