I met my best friend Tom at the ststion yesterday.
主语 谓语 定语 宾语 同位语 状语
1、主语：是一句的主体，是全句诉说的对象，常用名词、数词或代词担任（是全句谈论的中心话题）。例： (1) Students syudy.（名词） (2)We are friends.（代词）
(3)To go to good university is his first goal.（不定式） (4)Doing morning exercise is good for your health.（动名词） (5)Jane is good at playing the piano. (6)She went out in a hurry. (7)Four plus four is eight. (8)To see is to believe.
(9)Smoking is bad for health.
(10)The young should respect the old. (11)What he has said is true.
2、谓语：是对主语加以陈述，表示主语的行为或状态，常用动词或动词词组担任，放在主语的后面（主语做什么了、怎么了）。例： (1)Students study.（实意动词） (2)We are friends.（be动词） (3)We love China.
(4)We have finished reading this book. (5)He can speak English.（复合谓语） (6)She seems tired.
(7)I saw the flag on the top of the hill. (8)He looked after two orphans.
3、宾语：表示行为的对象，常由名词或代词担任，放在及物动词或代词之后（动作的对象，目标；位于及物动词之后）。宾语分为间接宾语和直接宾语。直接宾语指物，间接宾语指人。例： (a)He gave me some books.
间接宾语 直接宾语
(b)Please pass me the book. (c)He bought me some flowers. (1) They are teachers. (2) I play with him.
(3) We love watching football games.
(4) He is dong her homework now. (5) I like my job. (6) I love you.
(7) He wanted to leave here.
(8) They enjoyed playing football games. 注：位于介词之后的成分也称之为宾语。
4、宾语补足语：是对宾语进行补充说明，宾语和宾语补足语一起构成复合宾语。例：
(1)I found the book interesting. (2)Do you smell something burning? (3)He made himself known to them. (4)She asked me to lend her a hand. (5)Please make yourself at home. (6)Please keep the dog out. (7)We must keep it a secret.
主动语态变成被动语态后，宾语补足语变成主补。例： (1)I last saw him playing near the river.→He was last seen playing near the river.
(2)The teacher caught the student cheating in the exam. →The student was caught cheating in the exam. (3)We made him monitor.→He was made monitor.
(4)He pushed the door open.→The door was pushed open.
5、定语：是用来说明或者限制名词的成分，常用形容词或者相当于形容词的短语或从句担任（是用来说明名词或代词性质特点的词）。形容词放在名词前，相当于形容词的短语或从句放在名词之后。例： (1)This is a red sun.
(2)The black bike is mine. (3)He is a tall boy.
(4)She is a chemistry teacher.
(5)The man in bllue is my brother.
(6)The girl playing the piano is my younger sister.
(7)The lady who is wearing red dress is our new teacher.
6、状语：是用来说明动词，形容词，副词、介词短语或整个句子的成分，常由副词担任。修饰动词的可以放在动词之前，也可以放在动词之后；修饰形容词或副词的放在它们之前。例： (1)The students study hard.
(2)I often write to him. (3)The bag is too heavy.
(4)I will be back in a while.
(5)They are playing on the playground. (6)He was late because he got up late.
(7)He got up so late that he missed the train. (8)I waited to see you.
(9)He often went to school by bus.
(10)His parents died,leaving him an orphan. (11)Please call me if it is necessary. (12)This book is very interesting.
(13)He went to school in spite of his illness. (14)He always comes late to school. 7、表语：系动词后的部分就是表语，表语是用来说明主语的性质或状态。一般由名词或者形容词担任。 常见的系动词有：
be(am,is,are,were,was),aapear,look,seem
feel,smell,taste,sound,keep,turn,become,get,grow,come,go etc.系动词不用于被动语态。例： (1) This table is long. (2) The apple tastes sweet. (3) The war was over.
(4) They seem to know the truth. (5) Time is precious.
(6) I’m not quite myself today. (7) Who was the first?
(8) He is out of condition. (9) The book is what I need.
通常情况下，主语和宾语前的成分是定语，谓语前的成分是状语，时间作状语放在句子的后面。
（定语）主语（状语）谓语（定语）宾语（状语）。 (1)(The tall)boy(often)go(to the big)zoo. (2)(The happy)child-went(his)home yesterday. 英语句子成分歌：
英语句子八呀八大块， 主谓宾表真呀真实在；
补语跟着宾语标语跑， 定语同位（语）专把名词踹。
状语的位置它自由自在，忽右忽左随心所欲摆。 浑身的毛病真呀真不少，前后乱窜它还会加塞。 英语五种基本句型： 基本句型一：S+V （主+谓） 基本句型二：S+V+P (主+系+表) 基本句型三：S+V+O (主+谓+宾)
基本句型四：S+V+o+O (主+谓+间宾+直宾) 基本句型五：S+V+O+P (主+谓+宾+宾补) S V cooks is working P o O C She 句He 型What he 一 said The pen 句He 型Everything 二 His face We 句They 型He 三 She 句I 型My mother 四 I We The news We He does not matter write smoothly is looks turned study are playing enjoys said give brought showed must keep makes call told saw happy nice red him me him English everday football reading “Good morning”. a book a pen yesterday my picture the door me him me a thieft I open happy Jim to wash the plates going into your room 二、从句
从句是相对于主句而言的，即它是从属于某一个主句，而不能单独做一个句子。英语中主要有三大从句，即名词性从句（包括主语从句，定语从句，表语从句，同位语从句）、形容词性从句（即定语从句）、副词性从句（即状语从句，包括时间，结果，条件，目的，原因，让步，地点，方式等）
1、 主从作主语，例：That the earth is round is truth. 2、 宾从作宾语，例：Do you know where he lives?
3、 表从左表语，：My opinion is that you should not go alone.
(一)主语从句
一、1、定义：作句子主语的从句叫做主语从句。
2、引导词：主语从句通常由从属连词that,whether,if和连接代词what,who,which,whatever,whoever以及连接副词
how,when,where,why等词引导，that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。例：
(1)What he wants to tell us is not clear.他要跟我们说什么，还不清楚。
(2)Who will won the match is still unknown.谁能赢得这场比赛还不得而知。
(3)It is known to us how he became a writer.我们都知道他是如何成为一名作家的。
(4)Where the English evening will be held is has not yet been announced.
英语晚会将在那里举行，还没有宣布。
二、1、找主语从句时，先找到句子的谓语，主句的谓语前面的从句，就是主语从句。
(1)Why he left wasn’t important.
主语从句 主句的谓语动词
(2)That he became an artist may have been due to her father’s influence.
主语从句 主句的谓语动词
2、that引导的主语从句可以放在主语的位置，这时that不可省略。例：
That prices will go up is certain.
3、that主语从句放在句首的情况不是很常见，绝大部分主语从句都借助形式主语it，主语从句放在后面。
(1)It is strange that he knows nothing about it.
英语语法分析句子成分分析
