语法
  一．Sentence Structure 句子结构
 
第一人称
第二人称
第三人称
主格：
I
We
You
You
He
she
It
They
宾格：
Me
Us
You
You
Him
Her
It
Them
形容词性物主代词：
My
Our
Your
Your
His
Her
Its
Their
名词性物主代词：
Mine
Ours
Yours
Yours
His
Hers
Its
Theirs
     Basic structure of sentence
         陈述句
行为动词：
主语
谓语部分
I
 work this morning.
You
 like reading a lot.
He
  has no time to spare.
They
  often play football on
 weekends.
These books
  belong to my wife.
 
Be 动词：
I
  am busy this morning.
You
 are welcome.
We
 are late for the class.
Kate
  is a pretty girl.
         一般疑问句
  
 
主语
谓语部分
BE动词：
Are
You
  new here?
Do
Mary
  your daughter?
行为动词：
Do
They
  believe you?
Does
He
  borrow your pen?
 
  
疑问词
BE动词
主语
谓语部分
BE动词：
What color
is
  your hair?  
How old
are
  you?  
行为动词：
Who
does
  this?  
How much
does
  this?  cost?
how
do
  you  go to work?
  二．被动语态
     语态是动词的一种形式，用来表明主语与谓语之间的关系。
   1、主动语态表示主语是动作的执行者或发出者。谓语动词为主动语态的句子叫主动句。
       The students are cleaning the classroom.
       The peasants planted many trees last year.
   2、被动语态表示主语是动作的承受者，谓语动词为被动语态的句子叫被动句。
       构成：助动词Be+及物动词的过去分词done
         一般现在时：is am are + done
         一般过去时：was were + done
         一般将来时：shall will be + done
         现在进行时：being (is am are) + done
         过去进行时：being (is am are) + done
         过去将来时：should would + done
         现在完成时：has/have been + done
         过去完成时：has been done
            English is spoken in Australia.
            The telephone sets are made by the workers in the factory two years ago.
            A new hospital will be built in the city.
            No school had been built before that time.
   3、含有情态动词的被动语态
      构成：情态动词 + be + done
            The sick girl must be sent to the hospital at once.
            Your composition may be handed in tomorrow.
  三．虚拟语气
     虚拟(条件)语气中，主句与从句中谓语动词的形式可分为下面四类：
假设类型
条件从句谓语
动词形式
主语谓语
动词形式
与现在事实相反
动词的过去式(be用were而不用was)
would(第一人称可用should) +动词原形
与过去事实相反
had+ -ED分词
would(第一人称可用should) +have + -ED分词
与将来事实相反
were to + 动词原形
would(第一人称可用should) +动词原形
与将来事实可能相反
should + 动词原形
would(第一人称可用should) +动词原形
       If it should rain tomorrow, I would stay at home.
       I am very sorry if I had done anything wrong to you, but I am sure that it was unintentional
       It is said Tom will go to an appointment tomorrow. If he were to come tomorrow, I ask him to
     go to your place.