【小学英语知识点】11-介词

什么叫介词

常置于名词或代词之前，表示该词与其他成分之间的关系

at in on before after form behind under up down by with of ...

介词的分类

时间介词 at  in on before after from

方位介词 on in at behind over above under below

方式介词 by with in 

动向介词 to into up down through across

原因介词 for

同类介词的分类用法

时间介词 at in on 

at 后面接 黎明 午夜 点与分

at dawn    at midnight   at 5 o'clock

in 后面接 早午晚 年月季

in the morning

in the afternoon

in the evening

in 2021    in July   in spring

night前要加at

at night

on 后面接 星期 具体的日子

on Sunday

on April 1st

on Saturday morning

There is nothing on tomorrow afternoon.

A lot of students in our school were born in March

My grandfather went abroad on Oct.10,1935

I have to go back home at night

across  through 方位介词

across 绕过 表面穿过

through  穿过

He walked across the road carefully

He walked through the forest alone

in the tree  和 on the tree

There are some apple on the tree

树上有几个苹果

There is a bird in the tree

树上有只鸟

看他是否是树的一部分

是 就用 on

不是  就用  in

方式介词 by with in

by 坐交通工具   步行要用 on foot

by 加 动词进行时 表示  通过做。。。

You can get NO.1 by working hard

in 加 语言 表示 用。。语言

Can you read this book in Chinese

in 加 方法方式 表示 用。。方式

You can succeed in this way！

with 加 工具 表示 用。。。工具

We can write with a pen 

with 加 身体器官  表示  用。。。（器官）

We can see with our eyes

We can smell with our nose

We can hear with our ears

I had my breakfast at 7 O'clock

My father will go back home on Sunday

I am in the hospital now

She always goes to school by bike

You can ask me for help!