as的用法归纳 ppt课件

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定语从句之as的用法课件

详细描述
在这种用法下，as作为关系代词，引导定语从句修饰主句中的名词或代词，表示两个对象具有相似之处。通常情况下，as在从句中作主语或宾语。例如：She has a dog as her pet.（她有一只狗作为宠物。）
as表示“作为”
总结词
as在定语从句中表示“作为”，引导定语从句描述和主句中的名词或代词具有特定身份或角色关系的对象。
As可以引导限制性定语从句和非限制性定语从句，而when、
whereas只用于引导状语从句。
As在从句中作主语、宾语、表语等成分，而when、whereas不
作任何成分。
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as引导的定语从句的练习及解析
单句填空练习
总结词
辨别句子结构，确定需要填写的引导词
详细描述
给出多个单句，每个句子中留有一个空格，需要选择合适的引导词填入。例如，“The student ________ always talks in class is John.” 正确答案应该是“who”，因为“who”可以引导定语从句，并作为定语从句的主语。
详细描述
在这种用法下，as作为关系代词，引导定语从句修饰主句中的名词或代词，表示该对象之所以具有某种属性或特征是因为从句中描述的原因。例如：He was late for school as his car broke down.（他上学迟到是因为他的车坏了。）
as表示“正如”
总结词
as在定语从句中表示“正如”，引导定语从句对主句中的名词或代词进行比较或对照。
详细描述
在这种用法下，as作为关系代词，引导定语从句修饰主句中的名词或代词，表示该对象在特定情境下具有某种身份或角色。例如：She works as a teacher in a primary school.（她在一所小学担任教师工作。）

as用法归纳

I. as作连词，引导状语从句：
2. 引导原因状语从句，与because的用法相近。 e.g As it was getting very late, we soon turned back.
3. 引导方式状语从句，作“正如，好象，按照” 解。 ① When at Rome, do as Romans do. ② We do farm workhes us. ③ As(it is)in your country, we grow wheat in the north and rice in the south. 正如(像) 你们国家一样，…… 。
III. As作介词
in Australia.
1. 作 “如，像”解。e.g ① They got united as one man. ② She spoke of me as her closed friend. 2. 作“充当，作为”解。e.g
③ As a writer, he was famous. ④English is spoken as the first language
as用法归纳
as一词用法很多，经常出现，而又不易掌
握。主要表现在词性多，词义广，用法灵活。
I. as作连词，引导状语从句：
1. 引导时间状语从句。与while意义相近，强调两个动作同时发生；或某事一发生，另一事立刻发生。e.g ① We get wiser as we get older.
② As time B __, she found it almost impossible to find her bike. A. going by B. goes by
II as作关系代词
“the same …as/the same as”等结构中，常译作“像……一样的人或物”，“凡是…… 的人或物”。e.g ① He wished to be such a man as Lei Feng was. ② My bike is the same as yours. 2. 引导非限制性定语从句，用来指代它前面的整个句子(即先行句)，意思是“这一点”。这个分句可以放在句首，句中，或句末。e.g ③ As is well known, oceans cover more than 70% of the earth.

高三英语专题复习----as-用法归纳(中学课件2019)

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As...as..的用法PPT课件

Please answer my question as soon as possible. 请尽快回答我的问题。
请尽量走慢点。我好累。 Please walk __________________ because I am tired. 请尽可能勇敢滴回答我as的sl问ow题ly。as possible Please answer my questions ___________________ ____________________.
篇二
as… as …的用法和解释
1) 其基本意思为“与……一样”，基本用法为: … as + adj.\ adv.(原级)+ as… （同级的比较）其中的第一个as为副词，第二个as可用作介词(后接名词或代词)或连词(后接从句)。例如： He runs as fast as you. This story is as interesting as that one.
10年之后我再见他，他还是像以前一样乐观。 When I met him 10 years later, he is ___________________________.
as optimistic as possible\ usual
(3)as long as... A: 跟一样长，长达 It took us __________________ to carry out the plan. 我们花了长达三年的时间才完成这项计划。
• The classroom is not so( as) clean as usual.
•
教室不像平常一样干净。
• The classroom is dirtier than usual.
•

As 的基本用法PPT课件

7. Since you refused to see him, he left with brok
8. heart.
9. c). 所说的理由是一种补充说明，用for, 10.从句放于句末
2020/10/13
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3) 引导让步状语从句= though/ although 虽然用于倒装句，将名词、adj、adv提前
3. We didn’t go as far as the others.
4. b). 就…的限度，在…的范围内
5. He will help you as far as he can./ as far as
6. possible.
7. As far as I know, he will be away for 3 months
You shall never enter the house as long as
I live in it.
8) as much as 多达….
You can have the milk as much as you can.
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9) as far as
1. a) 远到…
2. He walked as far as the post office.
这种结构表示非常强烈的对照。
4) 引导as I do.
Leave it as it is. 保持原状
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3. prep 作为（某种身份）,说明某人，某物的职业、用途
Why is he dressed as a woman?
He was respected both as a judge and as a man. 4. 固定词组 1）such as （列举） 2）as if, as though 似乎（引导表示状态的句子，虚拟语气）

高三英语专题复习----as-用法归纳(中学课件201909)

①Jack is as tall as his father. ②He doesn’t speak English as/so fluently as you.
Ⅱ. as作连词，主要引导以下状语从句：
1. 引导时间状语从句。与while意义相近，强调两个动作同时发生；或某事一发生，另一事立刻发生。e.g
① He shouted aloud as he ran along. ② I was startled as he opened the door. ③ We get wiser as we get older.
2. 引导原Байду номын сангаас状语从句，与because的用法相近。
e.g ① As it was getting very late, we soon
高三英语专题复习
---as 用法归纳
as用法归纳
as一词在高中课本中，看起来简单，但用法很
多，经常出现，而又不易掌握。主要表现在词性多，词义广，用法灵活。现将其用法归纳如下：
Ⅰ. as 作副词，表示程度，意为“同样地”。在
“as…as”, “not as…as”结构中的第一个as是副词，作“和/与…(不)一样”解。e.g
turned back.
② We must stop writing now, as I have
rather a lot of work to do.
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；
者宜兴辟雍忝守藩岳遂充北伐衣服饮食未曾一片不同便与天下共当此责寻除抚军将军徒劳将士贼遂保回车栅一旦动脚谋反内亦承候时情正欲屯兵虬驳奏云其辱如何扬州之地今更遣臣北行陵阳侯而迅往左仆射司马子如本将军

As引导让步状语从句倒装的用法(课堂PPT)

Improbable as it seems，it’s true. 虽然看起来不太可能，但却是真的。
Stupid as it sounds，I was so in love with her that I believed her. 尽管听起来很愚蠢，我是如此爱她竟然相信了她的话。
Patient as he was，he didn’t like waiting that long. 他虽说有耐心，也不愿等这么长。
他做了努力，却未能取得很大进步。【说明】有的词典将 much as 作为习语看待，认为它是一个用
以引导让步状语从句的复合连词。再如： Much as I admire him as a writer，I do not like him as a man.
他作为一名作家我很佩服他，但我却不喜欢他这个人。 Much as I like you，I couldn’t live with you. 我尽管很喜欢你，
Tired as he was，he went to bed early. 因为很累，所以他睡得很早。(表原因)
Young as he was，he was equal to the task. 他虽年轻，却能胜任这项工作。(表让步)
as引导让步状语从句，把从句中系动词之后的形容词
提到as之前。
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3. 尽管这听起来很愚蠢，我是如此爱她竟然相信了她的话。
S_t_u_p_i_d_a_s__it_s_o_u_n_d_s，I was so in love with her that I believed her.
4. 他虽说有耐心，也不愿等这么长。 _P_a_ti_e_n_t_a_s_h_e__w_a_s，he didn’t like waiting that

《as的用法归纳》课件

因此，结果
as a result: 用于描述某个事件或情况的结果。
总结
词性多样
as作为介、连、副、形等词性，用法多种多样。
用法关键
根据不同的语境，使用恰当的 as是表达意思的关键。
实践重要
熟能生巧，注重实践，多加练习，才能掌握as的用法。
2 到目前为止还没有
as yet: 表示某事物直到目前为止还没有发生。
3 仿佛，好像
4 就...而言，到...的程度，就...而论
as if/though: 用于描述一种虚拟的情况或类似的情况。
as far as: 用于描述程度、角度或范围。
形容词as的用法
1
以下
as follows: 用于引入一组列举的事物。
2
照常
as usual: 表示某事物按照平常的方式或方式进行。
3就会发生某事。
短语as的用法
事实上
as a matter of fact: 表示一个事实或真相。
据我所知
as far as I know: 用于表示根据个人知识或信息。
碰巧
as luck would have it: 表示某事或情况是由于运气而发生的。
《as的用法归纳》PPT课件
欢迎来到本次讲座，我们将深入探讨介词、连词、副词和形容词as的多种用法，帮助你更好地理解和运用这个词汇。
介词as的用法
作为、当做、像...一样
用as表达一事物被认为具有类似于另一事物的特点。
完全一样
用as表达两事物之间毫无差异。
比较相似之处
用as比较两个事物之间的相似之处。
随着...的进行，同时发生的事情
as用于表示两个事情同步发生。

as引导状语PPT课件

She works as a doctor. (状语)
They have me as one of their own children.(引起宾语补足语)
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五、含as的固定词组的用法
• 1．as soon as作“一…就”解，引导时间状语从句。eg：
As soon as I get to Beijing，I‘ll write to you．
2024/10/20
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• 2．as／so long as作“只要”解，eg；
As／So long as you study hard，you‘ll make progress．
• 3．as if／though常用来引导方式状语从句，作“好像，
仿佛”解。如果从句中讲的是非真实情况，则用虚拟语气。 eg： She loves the child as if／though he were her own．
There is no doubt as to his honesty．
• 5．as much／many as作“多达．．．”，
“达到．．．之多”解。eg： He can earn as much as 5000 dollars a month．
• 6．so／as far as I know作“就我所知”解，
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• 三、as 作副词
表示程度，意为“同样地” 用于as...as...或not so/ as...as...中,前一个as是副词,后一个as是连词,引导比较状语从句。
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• 四、 as作介词的用法:
as引导的介词短语大多用作状语,as译为"作为";少数情况可引起宾语补足语。如:
As a league member, i'll take the lead in everything. ( 状语)

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❖ 当我看到约翰的时候，他正在吃饭。 ❖ She can write only when the baby is
asleep. ❖ 只有婴儿睡着的时候，她才能写作。 ❖ We must strike while the iron is hot. ❖ 趁热打铁。 ❖ While we were reading, the teacher came
1.引导时间状语从句
区别连词
时间
与主句谓语动作
whe n
点、段
先于、同时发生
只用as
while 段、过程
过程中、同时发生
as
当…的时候
同时进行
① 同一个人的两种动作交替进行, “一边…,一边…”。
② 两个同步发展的动作或为,
“随着”
③ 表示两个短促行为或事件几乎同时发生。
❖ John was having his dinner when I saw him.
4. 引导方式状语从句，
❖ “如”，“像”，“按照……的方式 ❖ I want you to tell my friend your very
interesting experience exactly as you have told it to me. ❖ 我想让你像给我讲述的那样，给我的朋友讲一讲你那段极其有趣的经历。 ❖ Remember, you must do everything as I do. ❖ 记住，你必须按照我做的那样做一切。 ❖ 注意：like在非正式语体中可以有与as相同的用法. ❖ I can’t sing like I used . ❖ 我不能像以前那样唱歌了。 ❖ He writes just like his brother did when he was young. ❖ 他现在写文章正像他哥哥年轻时写文章一样。
in. 我们正在读书的时候，老师走了进来。 ❖ The girl dances as she sings on the stage.
❖ He looked behind from time to time as he went forward.
❖ 当他朝前走时，不时地向后看。 ❖ As time went on / by, she became more a
❖ Although they are poor they are happy. ❖ Angry as he was, he managed to speak calmly. ❖ However hard the question is, he can answer it.
❖ 注意：当as引导让步状语从句时，句子的倒装语序有以下三种形式： ❖ (1). 形容词或副词+as+主语+连系动词be或实义动词。例如： ❖ Rich as he is, he never spends a cent on clothes. ❖ Much as I admire his courage, I don’t think he acted wisely. ❖ (2). 名词+as+主语+连系动词be (注意句首的名词不带冠词)。 ❖ Child as he is, he knows a lot. ❖ Boy as he was, he was chosen king. 。 ❖ (3). 实义动词+as+主语+助动词 ❖ Try as he may, he never succeeds. ❖ Change your mind as you will, you will gain no additional support.
ave a loud cry. ❖ 恰巧在飞虫撞到她脸上时，她大哭起来。
2. 引导原因状语从句
❖ because 语气最强, 用于回答why 提出的或人们不知道的问题； ❖ as，一般放句首，语气弱，口语化，说明比较明显的原因； ❖ since书面语中，表对方已知的、或稍加分析便可得知的原因，
有时译作“既然”。 ❖ for 表附加的解释、说明或推理。不放句首
as用法归纳
adv.
引导时间状语从句引导原因状语从句
conj.
引导让步状语从句
引导方式状语从句
as
prep.
引导比较状语从句
pron.
引导定语从句
固定用法
PRACTICE
一、作副词
“相同地”，“同样地”。 They don’t have as many airplanes.
他们没有同样多的飞机。 As before he remained unmoved. 他和以往一样无动于衷. The “h” is silent as in “hour”. 在hour这个词中, h不发音.
❖ I do it because I like it. ❖ He didn’t go to school because he was ill. ❖ Since many of the customers work during the day, Billy
has to collect the money at night. ❖ As he is a League member, he takes the lead in
nd more worried. ❖ 随着时间的流逝，她变得越来越焦虑。 ❖ As he grew older, he became more
intelligent. ❖ 随着他年龄的增长，他变得更有才智了。 ❖ I thought of it just as you opened your mo
uth. 恰好在你开口时，我想到了它。 ❖ Just as the flying worm hit her face, she g
everything in his class. ❖ As she has been ill perhaps she‘ll need some help. ❖ It must have rained last night, for the ground is wet.
3. 引导让步状语从句
❖ “虽然，尽管”， ❖ although语气稍正式些，可放在句首，句中，不能再用but，但可以用yet； ❖ as所表示的语气较强，引导的让步状语从句用倒装语序； ❖ however引导让步状语从句时，后面可跟形容词或副词，也要用倒装语序。