【什麼是方式狀語從句】方式狀語從句表示主句中動作或狀態的方式或方法，多半是用比喻說明主句內容或原物，是被說明的人、物形象具體化。常由as，just as，as if，as though等引導。
1. 由as(如，像)引導
I will do as you told me. 我將會按照你告訴我的那樣去做。
The moon has no light of its own as the sun has. 月球不像太陽那樣，它本身不發光。
as之前可用just或exactly加強語氣。例如：
Most plants need air just as they need water.大部分的植物需要空氣，正如它們需要水一樣。
as引導的從句謂語句首時，主句常由so引出。例如：
As you treat me, so I shall treat you. 你怎樣對待我，我也將怎樣對待你。
Just as there are difference forms of matter, so there are different forms of energy.
正像有各種形式的物質一樣，也有各種形式的能。
as引導的從句的省略形式：
從句的主語、謂語有時可以省略：
1． 省略主語。無論從句和主句的主語是否一致，從句的主語可以省略。例如：
English is not difficult to learn, as (it )is generally supposed.
(主語一致)英語並不像一般人想象的那樣難學。
He wrote as(it) follows. (主謂不一致) 他寫的如下。
2. 省略謂語或謂語中的表意動詞。例如：
The study of science needs time, as any other subjects (does).
學科學像學其他學科一樣，需要時間。
The electricity does not move through the insulator as it would (move) through a conductor.
電不會像導體一樣通過這個絕緣體。
3. 主謂全省略。如：
He worked as usual (=···as it was usual). 他像平時那樣工作。
2. 專有句型
“A···to B+ what/ as+ C···to D” (A···對於B好比C···對於D一樣)；
“What C···to D, that A···to B” (C對於D 恰似A 對於B一樣)。例如：
Reading is to the mind what exercise is to the body. 讀書之於心靈，猶如鍛鍊之於身體。
What blood vessel is to a man’s body, that railway is to transportation.
鐵路對於運輸。好比血脈對於人的身體一樣。
3. 由as if， as though引導
兩者的意義和用法相同，引出的狀語從句謂語多用虛擬語氣，表示與事實相反，有時也用陳述語氣，表示所說情況是事實或實現的可能性較大。漢譯常作"彷彿……似的"，"好像……似的"，例如：
They completely ignore these facts as if (as though) they never existed.
他們完全忽略了這些事實，就彷彿它不存在似的。（與事實相反，謂語用虛擬語氣。）
He looks as if (as though) he had been hit by lighting.
他那樣子就像被雷擊了似的。（與事實相反，謂語用虛擬語氣。）
注意：從句謂語如果是be動詞，則不論從句主語是單、複數，均用were。例如：
It’s all, all covered with blots as if she were crying on the paper.
到處，到處都是淚痕，像是她趴在信紙上哭過。
It looks as if the weather may pick up very soon.
看來天氣很快就會好起來。（實現的可能性較大，謂語用陳述語氣。）
as if， as though 引導的從句常用省略形式，往往從句中只剩下介詞動詞、不定式短語、分詞短語或形容詞短語。例如：
He opened his lips as if（he was going）to say something.
（不定式短語）他張開嘴唇，好像要說什麼。
He walked forward as if（as though）making a speech.
（分詞短語）他向前走了幾步，似乎要說什麼。
The clouds has disappeared as if（they had done）by magic.
（介詞短語）雲彩好像變魔術似地消失了。
He fell off his horse as if（he had been）shot.
（過去分詞被動語態）他從馬上跌下來，好像被射中了。
He hurriedly left the moon as though（she were）angry.
（形容詞）他匆忙地離開了房間，好像生氣的樣子。
4. the way, how引導
用於口語或非正式文體中。
the way = the way that, the way in which / in the way
how = in whatever manner
He doesn’t speak the way I do. 他說話的方式和我的不一樣。
Do it the way you were taught. 要按照教導你的那樣去做。
This steak is cooked just how I like it. 這牛排正式在按照我喜歡的那樣去做。
5. 由like引導
在口語或非正式文體中，有時可用like代替as或as if。例如：
I wish I could paint like（=as）he did. 我希望我能像他那樣畫畫。
It rained like（=as if）the sky were falling. 下著大雨，好像天要塌下來似的。
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