这个已经不算英语语法了.
中文的语法也是这样
我们说主谓宾.
主语就是动作的发出者(一般在句首)
谓语就是主语发出的动作
宾语就是动作的承受者(一般在谓语后面)
例句:
I(主语) killed(杀.动词.就是谓语,这里+了ed,表示已经杀了) him(他,作为宾语.所以要用宾格.)
表语
表语是用来说明主语的身份、性质、品性、特征和状态的,表语常由名词、形容词、副词、介词短语、不定式、动词的-ing、从句来充当,它常位于联系动词（be,become,appear,seem等）之后.
一.名词作表语
Africa is a big continent.
非洲是个大洲.
That remains a puzzle to me.
这对我还是个难题.
二.代词作表语
What’s your fax number?
你的传真号是多少?
三.形容词作表语
I feel much better today.
我今天感觉好多了.
四.数词作表语
She was the first to learn about it.
她是第一个知道的人.
五.不定式或ing形式作表语
Her job is selling computers.
她的工作是销售电脑.
Our next step was to get raw materials ready.
我们下一步是把原料准备好.
六.介词短语作表语
The patient is out of danger.
病人脱险了.
I don’t feel at ease.
我感到不自在.
七.副词作表语
The sun is up.
太阳升起来了.
I must be off now.
现在我得走了.
八.从句作表语
This is what he said.
这就是他所说的话.
不定式作表语
作表语的不定式短语通常是说明主语的内容,这时主语通常是如下名词：
hope,idea,job,plan,wish,aim,purpose,thing,business
The purpose of new technologies is to make life easier,not to make it more difficult.
新技术的目的是使生活更便利,而不是更繁琐.
Her wish is to become a singer.
她的愿望是当一名歌手.
Our plan is to finish the work in two weeks.
我们的计划就是在两星期内完成这项工作.
表语从句
在句子中起表语作用的从句叫做表语从句.表语从句的引导词和主语从句的引导词相同.
What the police want to know is when you entered the room.
警察想知道的是你什么时候进的房间.
The trouble is that we are short of funds.
困难是我们缺乏资金.
This is what we should do.
这是我们应当做的.
That's why I want you to work there.
那就是我要你在那儿工作的原因.
His first question was whether Mr.Smith had arrived yet.
他的第一个问题是史密斯先生到了没有.
as if,as though,because也可用来引导表语从句.
She seems as if she had done a great thing.
她看起来好像做了一件大事.
It is because you eat too much.
那是因为你吃得太多了.
ing形式作表语
ing形式作表语表示泛指意义的动作,不定式作表语表示一次性的动作.
My hobby is growing flowers.
我的爱好是种花.
My favourite sport is playing tennis.
我喜爱的运动是打网球.
