高二年级英语语法知识重点【篇一】
动词不定式具有名词、形容词和副词的特征。因此在句中可以做主语、表语、宾语、宾语补足语、定语和状语。
一、不定式做主语：
1、不定式做主语一般表示具体的某次动作。===动名词doing 表示习惯的，经常的动作。
e.g: To finish the building in a month is difficult.
To do such things is foolish.
To see is to believe. (对等)
注: 1). 不定式作主语时,谓语用单数
2). 当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。
it做形式主语，不定式放在谓语动词之后常用于下列结构中：
(1)It is/was +adj.+of sb. to do…
(2) It is +adj.+for sb.+to do…
It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary
(3) it is +a +名词+ to do...
It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do
It takes (sb.) some time / courage / patience …to do…
It requires courage / patience / hard work… to do…
*注意: probable 和 possible 均可作表语，但possible可以用不定式作真实主语， 而probable不能用不定式作真实主语。
It is probable for him to come to the meeting.(错)
It is possible for him to come to the meeting.
It is possible / probable that he will come to the meeting.
二、不定式做表语
主语是以aim duty hope idea intention plan job suggestion wish purpose task 等为中心词的名词词组 或以 what 引导的名词性从句表示，后面的不定式说明其内容, 不定式作表语常表示将来或现在的动作或状态。
eg :My idea is to climb the mountain from the north.
Your mistake was not to write that letter.
What I would suggest is to start work at once.
三、动词不定式作宾语
以不定式结构为宾语的动词有：
ask, agree, care, choose, demand, decide, expect, fail, help, hope, learn, manage, offer, plan, prepare, pretend, promise, refuse, want, wish等只能用动词不定式作宾语
口诀(接不定式作宾语的动词)
想要学习 早打算( want learn plan)
快准备 有希望( prepare hope wish expect)
同意否 供选择(agree offer choose)
决定了 已答应(decide be determined promise)
尽力去 着手做(manage undertake)
别拒绝 别假装(refuse pretend)
失败不是属于你(fail)
e.g.Tom refused to lend me his pen.
We hope to get there before dark.
The girl decided to do it herself.
*注意:某些及物动词可用-ing也可用动词不定式作宾语但意义不同的有
stop go on remember forget
regret try mean can’t help
be used to
高二年级英语语法知识重点【篇二】
英语中过去分词可作宾补，(此时的过去分词一般是及物动词)表被动意义或完成意义，有时两者兼而有之。做宾补的过去分词与宾语有逻辑上的动宾关系，即宾语是过去分词动作的对象。如：
She found the door broken in when she came back.(宾补与宾语有被动的关系，表一种状态。)
一. 过去分词用在表状态的动词keep,leave等的后面。
Eg:They kept the door locked for a long time.
Keep your mouth shut and your eyes open.(谚语：少说多看)
Don't leave such an important thing undone.
Don't leave the windows broken like this all the time.
二.过分词用在get,have,make, 的后面。
1.注意“have +宾语+过去分词”的两种情况：
A)表"让某人做某事/让某事(被人)做"
eg: I have had my bike repaired.
The villagers had many trees planted just then.
B)表"遭遇到某种不幸，受到打击/受....影响，蒙受..... 损失"
Eg:I had my wallet stolen on a bus last month.
The old man had his leg broken in the accident.
He had his leg broken in the match yesterday.(MET1986)
2."make+宾语+过去分词",在这种结构中，过去分词的动词必须是表示结果含义的。如：
They managed to make themselves understood in very simple English.
I raised my voice to make myself heard.
三、过去分词用在感观动词watch,notice,see,hear,listen to ,feel,find等后面。如
When we got to school,we saw the door locked.
We can hear the windows beaten by the heavy rain drops.
He felt himself cheated.
The managers discussed the plan that they would like to see carried out the next year.(NMET2000)
四、过去分词用在want,wish,like ,expect等表示“希望，愿望”这一类动词后面做宾补。如
The boss wouldn't like the problem discussed at the moment.
I would like my house painted white.
I want the suit made to his own measure.
I wish the problem settled.
五、过去分词用在“with +宾语+宾补”这一结构中，过去分词与宾语之间是动宾关系。如：
The thief was brought in with his hands tied behind his back.
With many brightly-coloured flowers planted around the building ,his house looks like a beautiful garden.
With everything well arranged,he left the office.
六、过去分词、现在分词、和不定式作宾补的区别。
现在分词作宾补：宾语和补语之间是主谓关系。其动作与谓语动作同时进行。
过去分词作宾补：宾语和补语之间是动宾关系。其动作先于谓语动作。
不定式作宾补： 表一个完成的动作、或表一个很短时间内看到、听到或感觉到的具体动作。
eg:He didn't notice me waiting.
I heard the song sung in English.
I saw him opening the window.
I saw the window opened.
I saw him open the window.
I heard her sing the song in English.
