高三英语语法知识点总结

英语是我们学习的主要科目之一,英语作为国际性语言,学好英语自然有很多好处。学习英语要从最基础的知识开始学,而且需要端正学习态度,因为学习外语需要坚持。下面就是小编给大家带来的高三英语法知识点,希望能帮助到大家!

高三英语语法知识点

重点句型

It was + 时间段+before…."过了多久才(怎么样)……"

It was not long before…."不久,就……"

It will (not) be +时间段+before…."要过多久(不久)……才……"(before从句谓语动词要用一般时态)

[例句]

It was not long before he sensed the danger of the position.不久他就意识到他处境的危险。

It was five days before he came back. 五天后他才回来。

It will be half a year before you graduate from the school. 再过半年你才能毕业

It will not be long before they understand each other. 他们大概不久就会互相了解。

in case of…(+n.) "以防;万一";

in case that…"以防,万一……"(谓语动词用一般现在时态或should+动词原形)

[例句]

In case of fire, what should we do?

Please remind me about it in case I forget/should forget. 万一我忘了,请提醒我。

In case (that) John comes/should come, please tell him to wait.

Please take your umbrella in case (that it rains/should rain).带上雨伞,以防下雨。

高三英语语法知识点汇总

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:Tofinishthebuildinginamonthisdifficult.

Todosuchthingsisfoolish.

Toseeistobelieve.(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)Itis/was+adj.+ofsb.todo…

(2)Itis+adj.+forsb.+todo…

Itiseasy/difficult/hard/foolish/unwise/right/wrong/unnecessary

(3)itis+a+名词+todo...

Itisapity/apleasure/apleasantthing/one’sduty/anhonor/ashame/acrime/noeasyjob…todo

Ittakes(sb.)sometime/courage/patience…todo…

Itrequirescourage/patience/hardwork…todo…

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。

Itisprobableforhimtocometothemeeting.(错)

Itispossibleforhimtocometothemeeting.

Itispossible/probablethathewillcometothemeeting.

高三英语语法知识点大全

1、所谓双重所有格就是指将 -’s 所有格与 of 所有格结合起来一起使用:

a friend of my father’s 我父亲的一位朋友

a photo of Mr Smith’s 史密斯先生的一张照片

2、双重所有格的使用场合:

①当被修饰名词前有指示代词、疑问代词、不定代词或数词等限定词时,一般要用双重所有格:

I don’t like that big nose of David’s. 我不喜欢大卫的那个大鼻子。

Which novel of Dickens’ are you referring to? 你谈的是狄更斯的哪部小说?

Some friends of my brother’s will come. 我兄弟的一些朋友要来。

【注】被双重所有格修饰名词前有指示代词时,通常带有一定的感情色彩(如赞赏、不满、厌恶等):

That little daughter of your cousin’s is really a dear. 你表哥的那个小女儿真是逗人爱。(表赞赏)

That daughter of your cousin’s is constantly complaining. 你表哥的那个女儿老是在报怨。(表厌恶)

另外,被双重所有格修饰的名词前可以用不定冠词,但通常不用定冠词:

可以说:a poem of Shelly’s, a novel of Dickens’

不能说:the poem of Shelly’s, the novel of Dickens’

②有时既可用双重所有格也可用 of 所有格,但含义稍有差别。比较:

a photo of Mary’s 玛丽收藏的一张照片

a photo of Mary 玛丽照的一张照片

a criticism of William’s 威廉提出的批评

a criticism of William 对威廉的批评

高三英语语法知识点归纳

一般现在时:am /is /are +及物动词的过去分词;

例:i am asked to the party today.

(2) 一般过去时:was /were+及物动词的过去分词;

例:i was asked to the party last night.

(3) 现在进行时:am /is /are being +及物动词的过去分词;

例:i am being asked to the party today.

(4) 过去进行时:was /were being +及物动词的过去分词;

例:i was being asked to the party that time.

(5)一般将来时:助动词will +be +及物动词的过去分词;

或:am /is /are going to +be +及物动词的过去分词;

例:i will be asked to the party tomorrow.

例:i am going to be asked to the party tomorrow.

(6)过去将来时:助动词would +be +及物动词的过去分词;

或:was /were going to +be +及物动词的过去分词;

例:i would be asked to the party the next day.

例:i was going to be asked to the party the next day.

(7)现在完成时:助动词has /have +been +及物动词的过去分词;

例:i has been asked to the party today.

(8) 过去完成时:助动词had +been +及物动词的过去分词;

例:i had been asked to the party the day before.

另外,含有情态动词的被动语态构成为:情态动词+助动词be +及物动词的过去分词.

例:i may be asked to the party today.

高三英语语法知识点总结

It的用法

1、It除了代替人和物以外,还可以作形式主语.而真正的主语(不定式、动名词或从句)则放于谓语或表语之后.

例如:It is nor easy to finish the work in two days.

然而有少数表语之后接动名词作真正的主语.这些表语是:无助(no help)、无用(no use)、没好处(no good);工作(hard work)、费时(a waste of time)、又危险(a danger).

例如:A、It is no use crying over spilt milk.

B、It is a waste of time waiting for him.

2、It还可以作形式宾语.通常下列动词后面可接it作形式宾语:2f2tcjm(find,feel,think,take,consider,judge, make).

例如:A、He made it clear that he was not interested in this subject.

B、I think it no use arguing with him.

3、It用于强调句式.要强调句子的某一部分(主语、宾语、 状语),可以把it当作先行词.这种句子的结构是:It is(was)+ 被强调部分+that(who)+句子的其余部分.

例如:A、It iS Professor Lin who teaches us English—(强调主语)

B、It was in Shanghai that l saw the film.—(强调状语)

C、It was in 1990 that I worked in the factory.(同上)

但要注意与定语从句的区别.

例如:D、It was 1990 when I worked in the factory.(定语从句)

在强调句式里,我们把强调结构It is(was)…that除去,句子还很完整.如例句C.而例句D就不能.

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