北京期末初中英語語法基礎知識

(1) at, on, in

表時間

表示時間點，某一時刻/年齡用at,如at four o'clock, at midnight, at the age of等；表示不確定的時間或短期假日也用at,如at that time, at Christmas等。

指某天用on, on表示星期幾/某一具體的日子/具體某天的上午/下午/晚上,表示一天中的三個時間段名詞前有修飾語或后有修飾語時如on Monday, on the end of November等。

in表示時間段,一天的三個時間段以及月份,年,季節(jié),世紀,人生的某個時期(某人幾十歲時) in the morning/afternoon /evening, in spring /in 2007/in March, in the twenty-first century, in his fifties。

表地點:

1)at 一般指較小的地點或較具體的位置

at the station at the cinema

2)in 表示在較大的地點或一個有限空間里.

in China in the classroom

3)on 指在某物體的表面上.

on the desk

注意: 寫街道時,若有門牌號用at ,否則用on / in 都可.

He lives at 270 DongChang’an Street.

(2) between, among(表位置)

between僅用于二者之間，但說三者或三者以上中的每兩個之間的相互關系時，也用between, 如

I'm sitting between Tom and Alice.

The village lies between three hills.

among用于三者或三者以上之間。如：

He is the best among the students.

(3) beside, besides

beside意為"在…旁邊"，而besides意為"除…之外"。如：

He sat beside me.

What do you want besides this?

(4) in the tree, on the tree

on the tree 表示 “樹上本身長的東西” 在樹上. 而in the tree 表示 “外界的物體進入樹中” 人或物在樹上.

There are some apples _____ the tree .

There is a boy ____ the tree