高三英语语法知识点精选【5篇】

1、高三英语语法知识点2021精选5篇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 语自然有许多好处。学习英语要从最基础的学问开头学，而且需要端 正学习态度，由于学习外语需要坚持。下面就是我给大家带来的高三 英语语法学问点，盼望能关心到大家！高三英语语法学问点1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

2、of the position.不久他就意识到他境况的危急。It was five days before he came back.五天后他才回 来。Itwillbehalfa year before you graduatefromthe school.再过半年你才能毕业。Itwillnotbelong before they understandeachother.他们也许不久就会相互了解。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 d

3、o?Please remind me about it in case I forget/should forget.万一我忘了，请提示我。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。高三英语语法学问点2一、不定式做主语：1、不定式做主语一般表示详细的某次动作。动名词doing表示 习惯的，常常的动作。e.g:Tofinishthebuildinginamonthisdi

4、fficult.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以下结构中： (l)ltis/was+adj.+ofsb.todo.(2)ltis+adj.+forsb.+todo.Itiseasy/difficult/hard/foolish/unwise/right/wrong/unnecessary (3)itis+a+名词+todo.Itisapity/apleasure/apleasan

5、tthing/onesduty/anhonor/ashame/acrime/ noeasyjob.todolttakes(sb.)sometime/courage/patience.todo.Itrequirescourage/patience/hardwork.todo.留意: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/prob

6、ablethathewillcometothemeeting.高三英语语法学问点31、所谓双重全部格就是指将-s全部格与of全部格结合 起来一起使用：afriendofmyfathers我父亲的一位伴侣aphotoofMrSmiths史密斯先生的一张照片2、双重全部格的使用场合：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，一般要用双重全部格：I dont like that big nose of Davids.我不喜爱大卫的 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 frien

7、ds of my brothers will come.我兄弟的 些伴侣要来。【注】被双重全部格修饰名词前有指示代词时，通常带有肯定的 感情颜色（如欣赏、不满、厌恶等）：That little daughter of your cousins is really a dear. 你表哥的那个小女儿真是逗人爱。（表欣赏）That daughter of your cousins is constantly complaining.你表哥的那个女儿老是在报怨。（表厌恶）另外，被双重全部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 Shellys, a novel o

8、f Dickens;不能说：the poem of Shellys, the novel of Dickens;有时既可用双重全部格也可用of全部格，但含义稍有差异。 比拟：a photo of Marys 玛丽保藏的一张照片a photo of Mary 玛丽照的一张照片a criticism of Williams威廉提出的批判a criticism of W川iam 对威廉的批判 高三英语语法学问点4 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；彳列：

9、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; 彳列：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； 彳列：i was being asked to the party that time.(5)一般将来时：助动词w川+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：iwillbe askedtothe party tomorrow.例：

10、iamgoing tobeasked to the partytomorrow.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； 彳列：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；彳列：ihasbeenaskedtothepartytoday.(8)过去完成时：助动词had +been

11、+及物动词的过去分词； 例：ihadbeenaskedtothepartythe daybefore.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.彳列：i may be asked to the party today.高三英语语法学问点5It的用法l、lt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)那么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

12、(no good);工作(hard work) 费 时(a waste of time) 又危急(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.通常以下动词后面可接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.要强调句子的某一局部(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)+被强调局部 +that(who)+句子的其余局部.例 如：A、It iS Professor Lin who teaches usEnglish（强调主语）B It was in Shanghai that I saw th