主系表结构的句子

主系表=主语+系动词+表语：
主系表句型结构用来说明一个事物,事物的状态,状态的改变,状态的持续或者一个
一 主语
可以做主语的成分有：
1 名词或名词词组：Tom,my dream,my brother（teacher,friend）
2 代词：I,you,he,she ,we ,they
3 动名词：Swimming is good for health.
4 不定式：To talk to him is my dream.
5 从句：That he is coming this afternoon is very exciting!
6其他：…..
二,系动词：
1 表示状态的系动词：[be],keep,stay,remain等
Keep quiet,please!
You may keep the book.
2 表示状态改变:get,turn,grow,become,go,run ,come,fall等
3 表示感觉或知觉：feel,smell,look,taste,sound,appear,seem等
三 表语的构成
1 形容词
Hi,boys,please keep quiet!
When he saw this,his blood ran cold.
2 名词（代词）
You are my friend.
My brother is a soldier.
Who is there?—It’s me.
3 副词
---Is Helen in?-No,she’s out .
He has fallen asleep,but the TV is still on.
When will you be back?
4 介词短语
The bus stop is just across the road.
To help you do this is really beyond my power(me).
5动名词（短语）
Her hobby is collecting stamps.
What I like most is reading novels.
*Collecing stamps is my hobby.
6不定式
The problem is to find the right place quickly.
My only wish is to do what’s best for you.
*My dream is to study abroad.
7 句子
What surprised me was (that) she spoke English so well.
The question is what you want to do.
What I want to know is how we can solve the fuel problem.
8 形容词+介词短语
She was afraid of snakes.
The research team is short of funds.
We are confident in his ability.
9 形容词+不定式
I’m sorry to hear that you’re ill.
hear的宾语
She’s ready to help others.
We’re determined to follow his example.
10 形容词+从句
I’m afraid (that) there is some misunderstanding between us.
I’m glad (that) you’ve come.
I’m not sure what I ought to do.
I’m not certain who he is.
I’m not sure whether I should go to France or Italy for my holiday.