【英语】语法基础知识

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教师邮箱:张航

语法基础

十大词性

  英语名称 作用 例词
名词 Noun(n.) 表示人或事物的名称 student学生; China
代词 Pronoun (pron.) 用来代替名词、形容词或数词等 He他; that那
数词 Numeral (num.) 表示数量或顺序 one一; first第一
形容 Adjective(adj.) 用来修饰名词 safe安全; great伟大
冠词 Article (art.) 用在名词前,说明所指的人或事 an,a,the
动词 Verb (v.) 表示人或事物的动作或状态 eat吃; have有;run跑
副词 Adverb (adv.) 用来修饰动词、形容词 hard艰苦; here这
介词 Preposition (prep.) 说明句子中词与词之间的关系 under在…下; in在…
连词 Conjunction 用来连接词、短语或句子 and和; but但是
感叹词 Interjection 表示说话时的感情或口气 Hello喂; why呃,嘿

七个成分

主语 谓语 宾语 表语 定语 状语 补语
名词 动词 名词 名词、形容词 形容词 副词 名词、形容词

五种基本句型

  1. 主 + 谓

    I teach.

  2. 主 + 系 + 表

    I am a teacher.

  3. 主+谓+宾

    I teach English.

  4. 主 + 谓 + 间宾 + 直宾

    I teach you English.

  5. 主 + 谓 + 宾 + 宾补

    I learn English better.

简单句&复合句

简单句

  • 由一个主语和一个谓语构成的句子——只有一套主谓关系

复合句

复合句的分类

  • 并列复合句

    I like apples, but I don’t like oranges.

  • 主从复合句

    I like the apple that you gave me yesterday.

并列复合句

定义

由两个或两个以上的分句并列而成,这些分句叙述相关的几件事情,或说明相关的几种情况,彼此之间没有主次之分、没有从属关系。

并列复合句的分类

  • 表示并列关系
    • 常见连词: and; not only… but also…; both…and…; as well as
  • 表示选择关系
    • 常见连词: or; not…but…; either…or…
  • 表示转折关系
    • 常见连词: but; yet; however; while
  • 表示因果关系
    • 常见连词: because; for; so; as

构词法记忆

前缀(改变词义) + 词根(决定单词意义决定方向) + 后缀(决定词性)

定语从句

定语从句三步走

  1. 先确定先行词
  2. 再选择关系词
  3. 最后写出从句

说明

  • 定语从句:修饰名词或代词的从句。
  • 先行项:被定语从句修饰的词或句子。
  • 关系词:引导定语从句的词。

关系词

关系代词必须却成分;关系副词不缺成分

关系代词

that、which、who、whom、whose、as

关系副词

when(on which)、where(in which)、why(for which)

限定性定语从句

  • 关系代词
    • 先行项是人
      • 关系代词用who/that/whom,在介词之后只能用whom
      • who/that指人, 在从句中作主语
      • whom/who/that指人, 在从句中做宾语
    • 先⾏行行项是物
      • 关系代词用which/that,介词之后只能用which
      • 只能用that的情况
        1. 先行词是不定代词时
        2. 先行词被序数词和最高级修饰时。
        3. 先行词被the only, the very, the last修饰时
  • 关系副词
    • where,先行词是地点,在从句中作地点状语
    • when,先行词是时间,在从句中作时间状语
    • why,先行词是原因,在从句中作原因状语

看先行词是什么, 看定语从句缺什么.

非限制性定语成分

I like the girl who is making a pose.
我喜欢摆pose的那个女孩

I like the girl, who is making a pose.
我喜欢的那个女孩,她正在摆pose

三种情况

  • 专有名词
  • 类指
  • 先行项是句子

对比

  形式 作用 能否省略 翻译
限制性定语从句 没有逗号 修饰、限定 不能 …的
非限制性定语从句 需要逗号 补充、解释 另起一句

非限定性定语从句(有逗号的)中关系词不能转换成which使用

名词性从句

  • 三种句式:陈述句(that)、一般疑问句(whether)、特殊疑问句(疑问词)
  • 四种成分:主语、宾语、表语、补语(同位语)

宾语从句

陈述句 (that + 陈述语序)

1. I believe that our team will win the football match.
2. Everybody says that he is geek.

一般疑问句(whether + 陈述语序)

I don't know if / whether you love me.

用whether禁if的三种情况

  • or not对whether很专一

      We don't know whether G.E.M will come or not.
    
  • 介词后只能用whether

      It all depends on whether he will approve of our plan.
    
  • 不定式之前用whether

      He doesn't know whether to stay or not.
    

非谓语

  • 动名词:doing
  • 动词不定式(谓语之外的地方):to do

特殊疑问句(疑问词 + 陈述语序)

1. I don't know why he was late yesterday.
2. You do what you want. // 你爱咋咋地
3. Most of us didn't know to deal with the situation.

主语从句

陈述句(that + 陈述语序)

  1. It is + 形容词 + that + 从句

  2. It is + 名词 / 名词性短语 + that + 从句

     It is a pity that...
     It is good news ...
     It is an honor that...
     It is my belief that ...
     It is a miracle that ...
     It is a shame that...
    
  3. It is + 过去分词 + that + 从句

     It is reported that...据报道
     It is believed that... 人们相信
     It must be pointed out that... 必须指出
     It has been found that... 现已发现
    

一般疑问句(whether + 陈述语序)

Whether you can pass the exam is unknown. 

特殊疑问句(疑问词 + 陈述语序)

When the sports meeting will be held is not sure.

表语从句

陈述句(that + 陈述语序)

1. My decision is that we all go to the cinema.

2. The reason why I am against this plan is that it will post a negative influence on the environment. // 我反对这个计划的原因是它将对环境有害。(既有定语从句又有表语从句)

3. The reson why i am in favor of this plan is it will pose a positive influence on the environment.

4. Yesterday is history, Tomorrow is mystery, Tody is a gift. That's why it's called the present.

一般疑问句(whether + 陈述语序)

The key point is whether you can shake your head.

特殊疑问句(疑问词 + 陈述语序)

The question is who will be responsible for the
accident.

同位语(补语)从句

需要注意的是同位语从与句式与定语从句相比较:

相同

  • 展现形式

区别

  同位语从句 定语从句
对现行词的作用 解释 修饰
关系代词后的从句 不缺成分 必须缺成分

陈述句(that + 陈述语序)

A saying gose that practice makes perfect. // 俗话说:熟能生巧。

The suggestion is great that we should get up early tomorrow. 

The news that he bought a fake Nokia made us laugh.

The news that Bin Laden was killed made him sad.

词汇升级

Beause
= Due to the fact that
= On account of the fact that

一般疑问句(whether + 陈述语序)

He is faced with the problem whether he should continue his school work.

特殊疑问句(疑问词 + 陈述语序)

I have no idea when we should set off. // 我不知道我们该何时出发。

I have no idea what you are talking about. // 我不知道你在说什么。

状语从句

修饰整个句子,表示句子间的关系。

时间状语从句

while

  • while之后是持续的动作或状态

固定句型

  • sb be doing — when sb did —
    • = while sb be doing, sb did
  • be about to do — when
  • had just done — when —

when

  • when 引导的动作 可以持续,可以瞬间

固定句型(一…就…)

  • had just done — when —
    • = had hardly done — when —
    • = had no sooner done — than
  • sb be doing — when sb did —

as

  • 译为“正当” 或“随着”

  • as引导时间状语从句

before?

  1. It took five minutes before he invited her. // [之后才]
  2. It wasn’t long before the girl’s boyfriend showed up. // [不久就]
  3. Before he could make up an excuse, her boyfriend agreed to dine out. // [没来得及就]
  4. I would die before I dated with you. // [绝不]

until

We will not leave until he comes back. // 他一回来我们就走。

Never leave the things until tomorrow you can do today. // 今日事,今日毕。
  • 主句动词延续, until.
  • 主语动词短暂 not … until

as soon as

We will leave as soon as it stops raining. // 雨一停我们就走。

once

Once you understand the rules of the game, you’ll love it. // 你一旦了解了游戏规则会喜欢它的。

名词引导句子

  • next time, the first time , the moment, the instant
The first time we heard the story, we didn’t understand it. // 我们第一次听说这个故事时完全不懂。

地点状语从句

Where there is a will, there is a way. // 有志者事竟成。

I found my wallet at the place where I fell down yesterday. // 我在昨天摔倒的地方找到了钱包.

原因状语从句

  • because
  • since
  • 短语词组
    • now that 既然
    • seeing that 由于
    • considering that 考虑到
    • in that 由于,既然

条件状语从句

  • Unless = if … not
  • if/unless
    • 主将从现
  • as long as 只要
  • 短语词组
    • on condition that… 如果

目的状语从句

  • in case

结果状语从句

  • so+adj+that…

让步状语从句

  • even if
  • even though
  • although
  • though

越来越口语化,语气越来越弱

  • while 表尽管

⽅式状语从句

  • as/just as

    When in Rome, do as the Romans do. // ⼊入乡随俗。
      
    I have got Kongming just as fish gets into the water. // 孤之有孔明,犹⻥鱼之有⽔水也。
    
  • as if/as though

    It seems as if it’s going to rain. // 似乎要下⾬了。
      
    He acted as if/as though nothing had happened. // 他表现得就像什么事都没发生似的。
    

⽐较状语从句

  • as…as…
People are not as honest as they once were. // ⼈们不像过去那么诚实了。

虚拟语气

分类

  1. if虚拟条件句
  2. 其他句式虚拟
  3. 名词性从句中的虚拟

if虚拟条件句

对现在的情况虚拟

  • If从句: did/were
  • 主句: would/could/might/should+do

对过去情况虚拟

  • if从句: had +done
  • 主句: would/could/might/should+have done

对将来情况虚拟

  • if从句: were/were to do/ should do
  • 主句: would/could/might/should+do
虚拟的时间 If 从句谓语 主句的谓语
现在 were/did would/could/ might/ should+do
过去 had done would/could/ might/should +have done
将来 were were to should would/could/ might/ should+do

错综时间虚拟

If I had not met you, where would I be? // 如果当初没有遇⻅你,我现在会是在哪⾥?

不含if的虚拟条件

  • without/but for 要不是,没有

      Without you, Icouldn't breathe. // 如果没有你,我就无法呼吸。
        
      But for much practice, you could not pronounce correctly. // 没有大量的练习,你就发不对音。
    
  • wish / if only 希望,要是…就好了

    • wish + 宾语从句
    • if only + 感叹句

与现在事实不相符

  • 动词一般用过去式 were/did

与过去事实不相符

  • 从句中/感叹句中动词:过去完成时 had done

与将来事实不相符

  • 从句中/感叹句中动词:过去完成时 would/could + 动词原形
  • would rather 宁愿
    • +动词原形 - 表主观选择
    • +从句 - 表建议-动词虚拟

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