四级英语语法基础知识大全？英语四级语法知识点总结：时态：过去完成时：表示在过去某一时间点之前已经完成的动作或状态。将来完成时：表示在将来某一时间点之前将完成的动作或状态。完成进行时：表示从过去某一时间开始一直持续到现在的动作，并且该动作可能仍在进行中。不定式：一般形式：表示与谓语动词同步发生的动作，那么，四级英语语法基础知识大全？一起来了解一下吧。
【 #英语口语#导语】英语四六级口语考试主要考查语法的有两个题型：选词填空和翻译。以下是 无 整理的英语四六级口语的语法知识点，欢迎阅读！
1.英语四六级口语的语法知识点
一、虚拟语气。应着重复习能引起虚拟语气的某些介词、介词短语和连词(如lest,incase,otherwise等);一部分表示建议、主张、命令等概念的词语，由于本身隐含说话人的主观愿望，其后的主语从句、宾语从句、同位语从句往往采用“should+动词原形”。
二、独立主格题。一般说来，在句子中没有连接词的情况下，逗号是无力连接两个句子的，其中一个分句要么是非谓语形式，要么是独立主格结构。两种结构都做状语，不同的是独立主格结构有自己的逻辑主语。
三、时态。英语中共有16个时态。四级考试中出现最多的是将来完成时、现在完成时、过去完成时和完成进行时。
四、名词性从句。形容词性的定语从句是考核的重点，用什么引导词，引导词前面的介词形式，引导词在从句中做什么成分，从句的语序等均有可能成为考点。此外，主语从句、同位语从句、宾语从句也应适当复习。
五、主谓一致。这类考题灵活性大，需要根据实际情况判断谓语动词的单复数形式。
英语四级语法知识点总结：
时态：
过去完成时：表示在过去某一时间点之前已经完成的动作或状态。
将来完成时：表示在将来某一时间点之前将完成的动作或状态。
完成进行时：表示从过去某一时间开始一直持续到现在的动作，并且该动作可能仍在进行中。
不定式：
一般形式：表示与谓语动词同步发生的动作，如“He decided to work harder”。
完成形式：表示发生在谓语动词之前的动作，如“He pretended not to have seen me”。
被动形式：如“The book is said to have been translated into many languages”。
常考考点：不定式做定语、状语、充当名词功能，以及不定式的省略。
动名词：
定义：具有动作性特征的名词，如“seeing is believing”。
Ⅰ动词(时态,语态,用法,省略,一致性等)
时
1)现在完成进行时态 (have/has been + -ing 分词构成): 动作或状态从过去某时开始,继续到现在,可能继续下去,也可能刚刚结束.
I’ve been writing letters for an hour.
I’ve been sitting in the garden.
2)过去完成进行时(由had been + ing分词构成): 过去某个时刻以前一直在进行的动作
I’d been working for some time when he called.
We had been waiting for her for two hours by the time she came.
3)将来完成进行时: 将来某个时刻以前一直在进行的动作.
By next summer, he will have been working here for twenty years.
In another month’s time she’ll have been studying here for three years.
4)将来完成时(由shall/will have + 过去分词构成): 将来某时会业已发生的事.
I shall have finished this one before lunch.
They’ll have hit the year’s target by the end of October.
1. 语态
1) 可以有两种被动结构的类型,例如:
He was said to be jealous of her success.
It was said that he was jealous of her success.
能同时适用于上述两个句型的主动词通常都是表示“估计”,“相信”等意义的动词,常见的有assume,believe,expect,fear,feel,know,presume,report,say,suppose,understand等.
It is supposed that the ship has been sunk.
The ship is supposed to have been sunk.
担当be supposed to 与不定式的一般形式搭配时往往表示不同的意义.例如:
Why are you driving so fast in this area? You are supposed to know the speed to know the speed limit. (你应该晓得速度限制)
2) 双宾语及宾补结构的被动语态
a) 双宾语结构的被动语态: 双宾语结构变为被动语态时,可以把主动结构中的一个宾语变为主语,另一个宾语仍然保留在谓语后面,但多数是把间接宾语变为主语.
He was asked a number of questions at the press conference.
Two days were allowed them for making the necessary preparations.
b) 宾补结构的被动语态:
She was called Big Sister by everybody.
Then he was made a squad leader.
He was considered quite qualified for the job.
The room was always kept clean and tidy.
2. 短语动词
1) Vi + adv
The plane took off two hours late.
2) Vi + prep
They looked round the Cathedral.
3) Vi + prep (有被动语态)
She’s looking after her sister’s children.
The children were always well looked after.
4) Vi + adv + prep
I began to look forward to their visits.
5) Vt + O + adv
Some women choose to stay at home and bring up their children.
The children were brought up by their mother.
They took him on.
6) Vt + adv + O (无被动语态)
I am trying to give up smoking.
7) Vt + O + prep
We talked Donald into agreement.
3. 省略
1) 在以as, than, when, if, unless等引导的从句中的省略: 在有些状语从句中,如果谓语包含有动词be,主语又和主句的主语一致a),或者主语是it b),就常常可以把从句中的主语和谓语的一部分(特别是动词be)省略掉.
a) Look out for cars when crossing the street.
When taken according to the directions, the drug has no side effects.
While there he joined in voluntary labour on a project.
Although not yet six months old, she was able to walk without support.
If not well managed, irrigation can be harmful.
Though reduced in numbers, they gained in fighting capacity.
This viewpoint, however understandable, is wrong.
Enemies, once discovered, were tightly encircled and completely wiped out.
She hurriedly left the room as though/if angry.
She worked extremely hard though still rather poor in health.
Fill in the application as instructed.
Whenever known, such facts should be reported.
The documents will be returned as soon as signed.
He said that no acrobat could ever perform those daring feats unless trained very young.
Once having made a promise, you should keep it.
b) If necessary I’ll have the letter duplicated.
Fill in the blanks with articles where(ver) necessary.
If possible, I should like to have two copies of it.
As scheduled, they met on January 20 at the Chinese Embassy.
2） 在以than a) 或 as b) 引起的从句中,常会有一些成分省略.
a) He told me not to use more material than (it is) necessary.
We should think more of the collective than of ourselves.
b) They worked with as much enthusiasm as young people (did).
He is now a vice-manager, but still often works in the kitchen as before.
Their training is free, as is all education.
We will, as always, stand on your side.
3） 错误的省略
His life is as fully committed to books as anyone I know.
While standing there in her nightgown, two bullets struck the wall beside her.
英语四级语法知识：不定冠词的用法
冠词是虚词，本身不能单独使用，也没有词义，它用在名词的前面，帮助指明名词的含义。英语中的冠词有三种，一种是定冠词(the Definite Article)，另一种是不定冠词(the Indefinite Article)，还有一种是零冠词(Zero Article)。
不定冠词a (an)与数词one 同源，是"一个"的意思。a用于辅音音素前，一般读作[e]，而an则用于元音音素前，一般读做[en]。
1) 表示"一个"，意为one;指某人或某物，意为a certain。
A Mr. Ling is waiting for you.
2) 代表一类人或物。
A knife is a tool for cutting with.
Mr. Smith is an engineer.
3) 词组或成语。
a little / a few / a lot / a type of / a pile / a great many / many a / as a rule / in a hurry / in a minute / in a word / in a short while / after a while / have a cold / have a try / keep an eye on / all of a sudden
英语四级语法知识：定冠词的用法
定冠词the与指示代词this，that同源，有"那(这)个"的意思，但较弱，可以和一个名词连用，来表示某个或某些特定的人或东西。
英语四级语法涵盖了多个重要方面，包括虚拟语气、谓语一致、倒装结构、非谓语动词、独立主格结构、时态和名词性从句等。虚拟语气强调说话人的主观愿望和假想情况，考生应特别注意能引起虚拟语气的介词、介词短语和连词，如lest、in case、otherwise等。在would rather、wish、as if、it is time that等句型中，需用适当形式表达主观愿望，同时关注混合虚拟句的使用。
谓语一致方面，灵活度较高，考生需根据实际情况判定谓语动词的单复数形式。具有生命意义的集合名词作主语时，谓语动词多采用复数形式，如people、poultry、militia等。用and连接的成分表示单一概念时，谓语动词用单数。就近原则也需掌握，主语中含有某些连词如as well as、besides、in addition to时，谓语动词的数同第一个主语保持一致。
倒装结构用于强调或突出，分为全部倒装和部分倒装。部分倒装和全部倒装的区别在于，部分倒装是将助动词或情态动词移到主语之前，而全部倒装则是将整个谓语移到主语之前。as在倒装结构中表示“正如”或“仿佛”，具有连接作用。
非谓语动词是语法考试中的重点，解题时可从三个方面入手：根据非谓语动词同其所修饰的名词或逻辑主语的一致关系，确定使用主动语态或被动语态，然后考虑采用现在分词、现在分词被动式或过去分词。
以上就是四级英语语法基础知识大全的全部内容，英语四级语法涵盖了多个重要方面，包括虚拟语气、谓语一致、倒装结构、非谓语动词、独立主格结构、时态和名词性从句等。虚拟语气强调说话人的主观愿望和假想情况，考生应特别注意能引起虚拟语气的介词、介词短语和连词，如lest、in case、otherwise等。在would rather、wish、as if、内容来源于互联网，信息真伪需自行辨别。如有侵权请联系删除。
