文档介绍：Lesson 6
介词
1
2
on Sunday
in the classroom
at Christmas
with a knife
behind the door
by bus
介词
表示与后面的名词或代词之间的关系。介词是一种虚词，不能单独在句中作成分，必须和名词连用，常见的介词可分为时间、地点和方式。
3
时间介词
in
表示在某世纪、年代、年、月、季节
in the 20th century
in the 1980s
in 2016
in July
in Summer
与morning, afternoon, evening连用表示在上午、下午、晚上
in the morning/afternoon/evening
at night
at noon
4
on
表示“在具体的某一天”
on May 10th,1982
on Children's Day
on Sunday
表示具体某一天的上午、下午或晚上
on the morning of October 1st, 2016
on Saturday afternoon
on a rainy night
5
at
表示某一个具体时刻
（几时几分）
at half past eight
用在特定的时候（时节、时机）
at the moment
at that time
6
in July
on July 5th
at 12 o'clock
in > on > at
7
before
在……之前
after
在……之后
from
从……开始
before lunch
after school
from day to night
for
在一段时间内
for a long time
8
方位介词
in
表示“在……地方”（大地点）
in China in Shanghai
表示“在……里面”
in the box in the bottle
at
表示“在……地方”（小地点）
at school at the station
用于门牌号码前
at 115 Beijing Road
9
on
over
under
above
below
10
behind
in front of
in the front of
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