染雾高考英语知识点总结：as用法大全 篇一
The word "as" is a versatile word in the English language, and it can be used in various ways to convey different meanings. In this article, we will explore the different uses of "as" in English grammar and provide examples for each usage.
1. Comparative Usage: "as + adjective + as"
This usage is used to compare two things or people that have the same quality or degree.
Example: He is as tall as his older brother.
2. Simultaneous Actions: "as + subject + verb"
This usage is used to describe two actions that happen at the same time.
Example: As I was leaving the house, it started to rain.
3. Cause and Effect: "as + result + cause"
This usage is used to describe a cause and its effect.
Example: As a result of her hard work, she was promoted.
4. Time Reference: "as + time reference"
This usage is used to indicate when something happens.
Example: As of tomorrow, the new policy will be implemented.
5. Purpose: "as + purpose"
This usage is used to express the purpose or aim of an action.
Example: She joined the gym as a way to stay fit.
6. Manner: "as + adjective/adverb + as"
This usage is used to compare the manner in which something is done.
Example: She swam as gracefully as a dolphin.
7. Preposition: "as + noun"
This usage is used to indicate the role or function of someone or something.
Example: He works as a doctor.
8. Concession: "as + subject + verb"
This usage is used to express a concession or contrast to a previous statement.
Example: He is rich, as he has inherited a large fortune.
9. Definition: "as + noun/phrase"
This usage is used to define or describe someone or something.
Example: He is known as the best chef in town.
10. Comparison: "as + subject + verb + as"
This usage is used to compare two actions or situations.
Example: He can swim as well as his sister.
These are just some of the many ways "as" can be used in English grammar. It is important to understand these various uses in order to use "as" correctly in different contexts.
高考英语知识点总结：as用法大全 篇二
In this article, we will continue exploring the different uses of "as" in English grammar. Let's dive into more examples and explanations for each usage.
11. Proportion: "as + noun + as"
This usage is used to express proportion or equality.
Example: He ate as much as his brother.
12. Substitution: "as + noun/phrase"
This usage is used to substitute or replace someone or something.
Example: She worked as a substitute teacher for a year.
13. Intensifier: "as + adjective + as"
This usage is used to intensify or emphasize a quality or degree.
Example: The movie was as scary as it gets.
14. Time Comparison: "as + subject + verb + as"
This usage is used to compare the duration or time taken for an action.
Example: He finished the race as quickly as his rival.
15. Conjunction: "as + subject + verb"
This usage is used to introduce a clause that expresses a reason or cause.
Example: As it was raining, we decided to stay indoors.
16. Simile: "as + adjective + as"
This usage is used to make a comparison using "like" or "as".
Example: The clouds were as white as snow.
17. Request: "as + subject + verb"
This usage is used to make a polite request or ask for permission.
Example: As a favor, could you please pick up my mail?
18. Condition: "as + subject + verb"
This usage is used to express a condition or requirement.
Example: As long as you study hard, you will succeed.
19. Price Comparison: "as + price + as"
This usage is used to compare prices or costs.
Example: The dress is as expensive as the shoes.
20. Exception: "as + noun/phrase"
This usage is used to express an exception to a general statement.
Example: As a rule, I don't eat dessert, but I'll make an exception today.
By understanding and practicing these various uses of "as" in English grammar, you will be able to use this versatile word effectively in your writing and speaking.
高考英语知识点总结：as用法大全 篇三
2016高考英语知识点总结：as用法大全
一、as作连词的用法
1. as...as的用法
as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。例如：
(1)This film is as interesting as that one.这部电影和那部电影一样有趣。
(2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。
其否定式为not as/so +adj./ adv. +as。例如：
This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。
若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：
Your bag is twice as expensive as mine.你的袋子比我的贵一倍。
几个关于as...as的常见句型：
(1)as...as possible
Please answer my question as soon as possible.请尽快回答我的问题。
(2)as...as usual/befor 
She looks as pretty as before.她看起来和以前一样漂亮。
(3)as long as... (引导条件状语从句)
It took us as long as three years to carry out the plan.
我们花了长达三年的时间才完成这项计划。
(4)as far as
He walked as far as the railway station yesterday evening.
昨天傍晚，他一直散步到火车站。
