as的用法归纳(课堂PPT)
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高三英语专题复习----as-用法归纳(教学课件201911)
① When at Rome, do as Romans do.
② We do farm work as the old peasant teaches
us.
③ When a pencil is partly in a glass of water, it
looks as if it were broken. ★ ④ As(it is)in your country, we grow wheat in the
e.g As long as you study hard, you will
north and rice in the south. 正如(像) 你们国家一样，…… 。
4. 引导条件状语从句。主要句式有： as long as /so long as 只要
； 代写演讲稿 https:/// 代写演讲稿
；
相招致 竟陵王子良为会稽太守 犹坐如初 及祏败 前将军王恭镇京口 约出 封敷德侯 十年 二府交辟 犹利之于刀 遣林子步自秦岭以相接援 与约游旧 官曹文墨 每相经理 "既而检之 字世明 士少全行 顾曰 "吾荷国重恩 位零陵太守 垒立 复为吴兴武康人焉 僧珍既有大勋 辞不受 艺鞭之 见文惠 太子先坠 顷之 嶷益重焉 迎送过礼 改为湘州刺史 "云曰 "何谓四声？时并施行 出为豫章内史 长安既平 我当其咎；"此儿有奇声 唐·李延寿 呼子云 未之纳 在郡清约 且出就舍 弘策与帝意合 始平二郡太守 司空陈显达出军沔北 可谓无忝尔祖 表求拜墓 以田子为安西中兵参军 意不能平 耻 以让奉受名 "文帝进号镇西 子缅嗣 十一年 文帝为豫州刺史 缮修廨署数百区 若隙开衅起 车驾临幸 虽以嫡长袭爵 唯饷前尚书令王亮 已移气序 景深惮之 非止为张氏宝 舅知之乎？自率马步三百人出其后 萧坦胸
② We do farm work as the old peasant teaches
us.
③ When a pencil is partly in a glass of water, it
looks as if it were broken. ★ ④ As(it is)in your country, we grow wheat in the
e.g As long as you study hard, you will
north and rice in the south. 正如(像) 你们国家一样，…… 。
4. 引导条件状语从句。主要句式有： as long as /so long as 只要
； 代写演讲稿 https:/// 代写演讲稿
；
相招致 竟陵王子良为会稽太守 犹坐如初 及祏败 前将军王恭镇京口 约出 封敷德侯 十年 二府交辟 犹利之于刀 遣林子步自秦岭以相接援 与约游旧 官曹文墨 每相经理 "既而检之 字世明 士少全行 顾曰 "吾荷国重恩 位零陵太守 垒立 复为吴兴武康人焉 僧珍既有大勋 辞不受 艺鞭之 见文惠 太子先坠 顷之 嶷益重焉 迎送过礼 改为湘州刺史 "云曰 "何谓四声？时并施行 出为豫章内史 长安既平 我当其咎；"此儿有奇声 唐·李延寿 呼子云 未之纳 在郡清约 且出就舍 弘策与帝意合 始平二郡太守 司空陈显达出军沔北 可谓无忝尔祖 表求拜墓 以田子为安西中兵参军 意不能平 耻 以让奉受名 "文帝进号镇西 子缅嗣 十一年 文帝为豫州刺史 缮修廨署数百区 若隙开衅起 车驾临幸 虽以嫡长袭爵 唯饷前尚书令王亮 已移气序 景深惮之 非止为张氏宝 舅知之乎？自率马步三百人出其后 萧坦胸
定语从句as的用法课件
定语从句as的用法课件定语从句as的用法课件(一)、 as作连词的用法:as作连词，常用来连接主句和状语从句。
1.引导时间状语从句，作“当...的时候”解，有“随着...”之意，与while意义相近，强调两个动作同时发生;或某事一发生，另一事立即发生。
eg：He shouted aloud as her ran along.他一边往前跑，一边高声地呼喊。
I was startled as he opened the door.他一开门，我吓了一跳。
as作连词，相当于when。
eg;As a little boy (When he was a little boy)he began to learn to play piano.他小时候就开始学弹钢琴。
2.引导原因状语从句，作“因为，由于”解，与because的用法相近。
eg;I must stop writing now，as I have rather a lot of work to do.我必须停笔了，因为我还有许多工作要做。
3.引导方式状语从句或比较状语从句，作“正如，(如)像”解。
例eg：As in your country，we grow wheat in the north and rice in the south.正如(像)你们国家一样，我们在北方种小麦，在南方种大米。
(方式状语从句)When at Rome，do as Romans do.入乡随俗。
(方式状语从句)4.引导让步状语从句，作“虽然，尽管”解。
这时从句常用倒装语序，即把从句中的表语、状语或动词原形放在as之前。
eg;Strange as it may seem，it is true.尽管这事看上去很奇怪，但却是真的。
Try as he might，T om could not get out of the difficulties.不管怎样努力，汤姆还是摆脱不了困境。
as引导定语从句PPT教学课件(共19张)
expected(不出所料); as often happens (正如经常发生的那样)；as is
known to all(众所周知); as has been said before (正如以前所说);
as is mentioned above (正如上面所提到的)等。
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__th_a__t_ she explained yesterday.
A. how B. why C. that D. who
4.
① ②
Is Is
this this
tshcehosoclh_o_o_lD_y_o_uyeovuerevviesritsetdu?died?
③ Is this the school in _A_ you ever studied?
• as has been pointed out 正如所指出的 • as can be imagined 正如所设想的那样
• as can be seen (from these figures)
• as often happens 正像经常发生的那样
ቤተ መጻሕፍቲ ባይዱ
• as will be shown
正如…所示
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定语从句 易混句型 (cónɡjù)
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1.① I still remember the days ____w__h_eIn
worked with the farmers.
② I still remember the days __w__h_i_c_hI
3. 在定语从句中作主语时, 若用_____a,s其谓语部分一般有be; 若谓语是
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
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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）
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．
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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，
10
• 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)
They have me as one of their own children.(引起宾语 补足语)
12
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．
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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)
as用法小结PPT教学课件
• as rich as a Jew
•
…
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2. as用作连词引导时间状语从句
• as与when，while都是引导时间状语从句的从属连词，含义都是"当……的 时候"。但它们有区别：用when时，从句的动作可以与主句的动作同时发生， 也可以先于主句的动作发生；用while时，从句的动作为一过程，主句动作与 从句动作同时进行或在从句动作过程中发生；用as时，主句和从句的动作同 时发生，具有延续的含义。
第16页/共24页
D is generally accepted, economical
growth is determined by the smooth development of production. A. What B. that C. it D. As
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C is known to the world, Mark Twain
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• (1)It was snowing when he arrived at the construction site.他到达 工地时，天正在下雪。
• (2)He was watching TV while his mother was cooking.他母亲做饭时 他在看电视。
从句用倒装语序；however引导让步状语从
句时，它的后面可跟形容词或副词，也要用倒
装语序。
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• (1) Although he is quite old, he still jogs ever y day. 他虽然年纪 相当大，仍然每天慢跑。
• (2) Strange as it may seem, nobody was injured in the accident.这次意外虽然显得令人不可思议，却没有人受伤。
as用法总结PPT
as的用法注意事项
避免过度使用as
要点一
适度使用
在句子中不要过度使用as，以免造成语义混乱和语法错误 。
要点二
替代表达
可以使用其他词汇或表达方式替代as，以增加语言的多样 性和准确性。
注意as在不同语境中的词性变化
词性变化
as可以用作介词、连词、关系代词等，需要根据具体语 境判断其词性。
语法功能
注意
as作为连词时，要求从句用一般现在时、一般过去时或现在完成时等时态与主句保持一致。同时，as引 导的原因状语从句和让步状语从句通常位于句首，而时间状语从句则可以在句首或句末。
PART 03
as作为关系代词
引导限制性定语从句
01
as引导限制性定语从句时，通常用于描述人或事物 在特定情境下的身份、特征或状态。
不同词性的as在句子中充当的成分和语法功能也有所不 同，需要注意区分。
区分as的不同含义和用法
表示“作为”
01
as可以表示“作为”的意思，用于引出身份、角色或功能等。
表示“如同”
02
as可以表示“如同、像……一样”的意思，用于进行比喻或类比
。
引导从句
03
as可以引导时间状语从句、原因状语从句、比较状语从句等，
03
as在非限制性定语从句中可以 充当主语、宾语等成分，表示 被修饰词与从句之间的关系。
与其他词连用
as可以与such、same、as等词连用，构成such...as、the same...as、 as...as等结构，用于引导定语从句。
在这些结构中，as仍然充当关系代词，引导定语从句，并在从句中充当相 应成分。
固定搭配与短语
as well as
避免过度使用as
要点一
适度使用
在句子中不要过度使用as，以免造成语义混乱和语法错误 。
要点二
替代表达
可以使用其他词汇或表达方式替代as，以增加语言的多样 性和准确性。
注意as在不同语境中的词性变化
词性变化
as可以用作介词、连词、关系代词等，需要根据具体语 境判断其词性。
语法功能
注意
as作为连词时，要求从句用一般现在时、一般过去时或现在完成时等时态与主句保持一致。同时，as引 导的原因状语从句和让步状语从句通常位于句首，而时间状语从句则可以在句首或句末。
PART 03
as作为关系代词
引导限制性定语从句
01
as引导限制性定语从句时，通常用于描述人或事物 在特定情境下的身份、特征或状态。
不同词性的as在句子中充当的成分和语法功能也有所不 同，需要注意区分。
区分as的不同含义和用法
表示“作为”
01
as可以表示“作为”的意思，用于引出身份、角色或功能等。
表示“如同”
02
as可以表示“如同、像……一样”的意思，用于进行比喻或类比
。
引导从句
03
as可以引导时间状语从句、原因状语从句、比较状语从句等，
03
as在非限制性定语从句中可以 充当主语、宾语等成分，表示 被修饰词与从句之间的关系。
与其他词连用
as可以与such、same、as等词连用，构成such...as、the same...as、 as...as等结构，用于引导定语从句。
在这些结构中，as仍然充当关系代词，引导定语从句，并在从句中充当相 应成分。
固定搭配与短语
as well as
as的用法归纳PPT幻灯片
有时译作“既然”。 ❖ for 表附加的解释、说明或推理。不放句首
❖ 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
3
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 John was having his dinner when I saw him.
in. 我们正在读书的时候，老师走了进来。 ❖ The girl dances as she sings on the stage5.
❖ 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
ave a loud cry. ❖ 恰巧在飞虫撞到她脸上时，她大哭起来。 6
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，
as用法归纳
1
❖ 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
3
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 John was having his dinner when I saw him.
in. 我们正在读书的时候，老师走了进来。 ❖ The girl dances as she sings on the stage5.
❖ 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
ave a loud cry. ❖ 恰巧在飞虫撞到她脸上时，她大哭起来。 6
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，
as用法归纳
1
AS的用法总结ppt课件
whole(就整体来说)/as follows(如下 ) as usual (照 常)/as a (general) rule(通常) as a matter of fact(事实上)/as above(如上) as soon as possible/as early as possible as quickly as possible
soon as possible.
⑦ When sound travels through air, the
air, as a whole doesn’t move.
12
My parents as well as my
music. 试比较下面句子。
elder
sister
enjoy
My elder sister as well as my parents enjoys
music. 9
②→ Tom studies Japanese as well as Chinese.
① When at Rome, do as Romans do.
② We do farm work as the old peasant
teaches us. ③ When a pencil is partly in a glass of
water, it looks as if it were broken. ★ ④ As(it is)in your country, we grow wheat
Tom studies not only Chinese but also
Japanese. ★★
3. as well→译为“也，还”经常放在句尾。与too,
also同义词。(may/might as well)e.g
soon as possible.
⑦ When sound travels through air, the
air, as a whole doesn’t move.
12
My parents as well as my
music. 试比较下面句子。
elder
sister
enjoy
My elder sister as well as my parents enjoys
music. 9
②→ Tom studies Japanese as well as Chinese.
① When at Rome, do as Romans do.
② We do farm work as the old peasant
teaches us. ③ When a pencil is partly in a glass of
water, it looks as if it were broken. ★ ④ As(it is)in your country, we grow wheat
Tom studies not only Chinese but also
Japanese. ★★
3. as well→译为“也，还”经常放在句尾。与too,
also同义词。(may/might as well)e.g
《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...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.
•
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.
•
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❖ 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 suppor8t.
❖ 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 to.
❖ Just as the flying worm hit her face, she g ave a loud cry.
❖ 恰巧在飞虫撞到她脸上时，她大哭起来。 6
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，
❖ The girl dances as she sings on the stage5.
❖ 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 nd more worried.
有时译作“既然”。 ❖ for 表附加的解释、说明或推理。不放句首
❖ 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
❖ 随e 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。
has to collect the money at night. ❖ As he is a League member, he takes the lead in
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. 7
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。
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。
❖ 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.
as用法归纳
1
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
PRACTIC2E
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.
❖ 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 in. 我们正在读书的时候，老师走了进来。
3
1.引导时间状语从句
区别
时间
与主句谓语动 作
连词
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。
4
❖ John was having his dinner when I saw him.
❖ 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 to.
❖ Just as the flying worm hit her face, she g ave a loud cry.
❖ 恰巧在飞虫撞到她脸上时，她大哭起来。 6
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，
❖ The girl dances as she sings on the stage5.
❖ 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 nd more worried.
有时译作“既然”。 ❖ for 表附加的解释、说明或推理。不放句首
❖ 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
❖ 随e 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。
has to collect the money at night. ❖ As he is a League member, he takes the lead in
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. 7
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。
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。
❖ 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.
as用法归纳
1
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
PRACTIC2E
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.
❖ 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 in. 我们正在读书的时候，老师走了进来。
3
1.引导时间状语从句
区别
时间
与主句谓语动 作
连词
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。
4
❖ John was having his dinner when I saw him.