(共13张PPT)
介词
介词热身
基本概念
探索介词难解之谜
介词分类和固定搭配
介词辨析
介词通常是用来表示它后面的名词(代词)或起名词作用的短语,从句与句中其它成分之间的关系。介词是虚词,不能独立使用。后跟宾语,构成介词短语。
基本概念
虚词不能独立使用.
含义1
例.2 look after my sister
含义2
例.1 On sunday.
介词之后一般有名词、动名词或代词(宾格)或从句等作它的宾语,即构成介词短语。
介词分类
地点 方向 时间 其他
It’s the key to solve the problem.
By the way ,where is the post office
My father bought a dress for me.
The trip to America was interesting.
固定搭配
.
.
There is a river in front of my home在...的前面
Our teacher is standing in the front of those students在内部空间的前面
介词辨析一
in front of & in the front of
.
.
1.He has worked there since the factory opened.(时间点)
2.I have learned English for three years.(时间段)
介词辨析二since & for
小试牛刀:选择since或for
1.They have been in this city_____three years ago.
2.They have been in this city ____three years.
(since)
(for)
.
.
介词辨析三
across & through&over
across the road
These animals are through the forest.
They are climing over the mountain.
2
3
May 我交际比较广.
Must 我性格较倔强
1
can 我办事能力强
—What can you do
—I can spray water(喷水).
May I succeed.
I am so stubbon. I must be right.
同学们回家之后可以查一查资料,自学下情态动词的一些具体用法,并完成下面的题目。下节课我们请同学们来向大家脱稿展示一下,表现优异的奖励积分和老师的表扬哦。