这篇文章小编给大家总结归纳了中考英语的重要知识点,接下来分享具体内容,供参考。

主谓一致

1.语法一致的原则

(1)以单数名词或代词,动词不定式短语作主语时,谓语动词要用单数;主语为复数时,谓语用复数,例如:He goes to school early every morning.

(2)由and或both……and连接的并列成分作主语时,谓语动词用复数。例如:Both he and I are right.

(3)由and连接的并列单数主语之前如果分别由each, every修饰时,其谓语动词要用单数形式。例如:In our country every boy and every girl has the right to receive education.

(4)主语是单数时,尽管后面跟有 but ,except, besides, with 等介词短语,谓语动词仍用单数。例如:The teacher with his students is going to visit the museum.

(5) 一些只有复数形式的名词,如people, police, cattle, clothes等作主语时,谓语动词要用复数。例如:A lot of people are dancing outside.

(6)由each, some, any, no, every 构成的复合代词作主语时,谓语动词都用单数。例如:Is everybody ready?

(7)有两部分构成的物体的名词,如glasses, shoes, trousers, chopsticks, scissors 等作主语时,谓语动词用复数。例如:Where are my shoes? I can’t find them.

2.意义一致的原则

(1)表时间、距离、价格、度量衡等的名词作主语时,谓语动词通常用单数。例如:Twenty years is not a long time.

(2)有些集合名词,如family, team等作主语时,如作为一个整体看待,谓语动词用单数;如指其中每个成员,则用复数。例如:My family is big one.

(3)不定代词由all, most, more, some, any, none作主语时,也要依这些代词表示的意义来决定谓语动词的单复数形式。如果代词代表复数可数名词,谓语动词用复数;如果代词代表单数可数名词或不可数名词,谓语动词用单数。例如:All of the work has been finished.

(4)疑问代词作主语时,其谓语动词也有两种情况:主语表示复数意义,谓语动词用复数;主语表示单数意义,则谓语动词用单数。例如:Who is your brother?

(5)“分数或百分数+of+名词”构成的词组作主语时,其谓语动词要以of后面的名词而定。名词是复数,谓语动词用复数:名词是单数,谓语动词用单数。例如:It is said that 35 per cent of the doctors are women.

各类时态的语法

1.一般现在时:表示经常、反复发生的动作或行为

We study hard at school every day.我们每天在学校努力学习

The earth moves around the sun.地球绕着太阳转

2.一般过去时:表示在过去某个时候发生的动作或存在的状态,也表示在过去某段时间里经常发生的习惯性动作

What did you do during the last summer vocation? 你去年暑假做了什么?

Bob saw a movie before。鲍勃已经看过电影了。

3.一般将来时:表示将要发生的动作或存在的状态及打算、计划或准备做某事

We are going to Shanghai next Monday.下周一我们去上海

I will go to the movies. 我要去看电影

4.现在进行时:表示在说话时或现阶段正在发生的动作或存在的状态

They are playing basketball now. 他们正在打篮球

She is preparing her lessons now. 她现在正在预习功课.

5.现在完成时 :表示在说话时结束的某一动作或状态

I have just turned off the light. 我刚刚把灯关上.

He has done a lot of work. 他干了许多工作。

6.现在完成进行时:表示从过去某一时间开始一直延续到的动作。这一动作可能刚刚开始,也可能仍在继续,并可能延续到将来

She had been suffering from a bad cold when she took the exam.她在考试前一直患重感冒.

How long have you been reading this book?这本书你读了多久了?

倒装句

1.全部倒装是只将句子中的谓语动词全部置于主语之前。此结构通常只用与一般现在时和一般过去时。常见的结构有:

1) here, there, now, then, thus等副词置于句首, 谓语动词常用be, come, go, lie, run。

There goes the bell.

Then came the chairman.

Here is your letter.

2) 表示运动方向的副词或地点状语置于句首,谓语表示运动的动词。

Out rushed a missile from under the bomber.

Ahead sat an old woman.

2.部分倒装是指将谓语的一部分如助动词或情态倒装至主语之前。如果句中的谓语没有助动词或情态动词,则需添加助动词do, does或did,并将其置于主语之前。

句首为否定或半否定的词语,如no, not, never, seldom, little, hardly, at no time, in no way, not until… 等。

Never have I seen such a performance.

Nowhere will you find the answer to this question.

Not until the child fell asleep did the mother leave the room.

当Not until引出主从复合句,主句倒装,从句不倒装。

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