席梦君 介词和动词.ppt

动词
动词的构成
系动词
助动词
情态动词
实义动词
系动词
状态类:be动词
变成类:get,turn,e,make
感观动词:look,sound,smell,taste,feel
似乎类: seem appear
保持类:stay keep
后四类系动词只和形容词连用,构成系表结构
I feel hungry.
The day gets longer and longer.
He looked happy.
be 动词
be动词的几种形式
am is are
was were
being
been
be动词的用法
与名词、数词、形容词、介词连用
I am a doctor.
He is ten.
They are tired.
The cat is under the table.
be动词的用法
There be 句型
用于不可数名词和可数名词单数之前
There is a pen on the desk.
There is some water in the glass.
用于复数名词之前
There are some sheep in the hill.
用于一般将来时
There is going to be a film in our school next Sunday.
用于一般过去时
There was a book on the desk yesterday.
There used to be (过去常)a tall tree here.
be动词的用法
Be 动词在时态中的运用
在现在进行时中
We are talking (交谈)now.
在过去进行时中
We were talking (交谈) at this time yesterday.
助动词
助动词的几种形式
do /don’t
does/ doesn’t
did/ didn’t
will /won’t
have, haven’t /has, hasn’t/had hadn’t