辨析ahead/forward/along3ahead/forward/along者均做‘向前,往前’（adv）讲时有什么区别吗?下述8个句子里的该3个词都可以互换吗?1>She bicycled along,singing loudly .(动作方向的'向前') 2>The soldiers crept forward

辨析ahead/forward/along3ahead/forward/along者均做‘向前,往前’（adv）讲时有什么区别吗?下述8个句子里的该3个词都可以互换吗?1>She bicycled along,singing loudly .(动作方向的'向前') 2>The soldiers crept forward
辨析ahead/forward/along
3ahead/forward/along者均做‘向前,往前’（adv）讲时有什么区别吗?下述8个句子里的该3个词都可以互换吗?
1>She bicycled along,singing loudly .(动作方向的'向前')
2>The soldiers crept forward under cover of darkness.(动作的方向性),
3> from this time forward (时间的方向性),
4>The year crept along unnoticed.(时间的方向),
5>The line of cars moved ahead slowly.(动作的‘向前’）
6>Full speed ahead.
7>Police have appealed for witnesses to come forward.
警方呼吁目击者挺身而出.
8>The policeman told the crowds to move along.
警察叫人群向前走动.

辨析ahead/forward/along3ahead/forward/along者均做‘向前,往前’（adv）讲时有什么区别吗?下述8个句子里的该3个词都可以互换吗?1>She bicycled along,singing loudly .(动作方向的'向前') 2>The soldiers crept forward
总说：一般来说,ahead/forward在表示“向前(时间,空间)”的意思时,一般没有区别,但固定搭配不在此列；而与along有细微区别,along含有一直向前的意思.
1>She bicycled along,singing loudly .(动作方向的'向前')
==>along/ahead/forward都可以.along/ahead/forward都可以.但意思有些许差异,along强调“延续向前或继续向前”,ahead/forward只有向前的意思.
She bicycled along,singing loudly.她骑着自行车,沿途大声唱歌.
She bicycled ahead/forward,singing loudly.她骑着自行车,在大声唱歌(可能只在汽车过程中唱了一句).
2>The soldiers crept forward under cover of darkness.(动作的方向性),
==>along/ahead/forward都可以.辨析同上.
3> from this time forward (时间的方向性),
==>ahead/forward/along都行.
from this time along从此刻向前的一段时间(一段时间)
from this time forward/ahead此刻以前(时间点)
4>The year crept along unnoticed.(时间的方向),
==>along/ahead/forward都可以.但意思有些许差异,along强调“延续向前或继续向前”,ahead/forward只有向前的意思.
The year crept along unnoticed.时间一直在偷偷向前.
The year crept forward/ahead unnoticed.时间偷偷向前.
5>The line of cars moved ahead slowly.(动作的‘向前’）
==>along/ahead/forward都可以.但意思有些许差异,along强调“延续向前或继续向前”,ahead/forward只有向前的意思.
The line of cars moved ahead/forward slowly.汽车慢慢向前行驶.
The line of cars moved along slowly.汽车一直慢慢向前行驶.
6>Full speed ahead.
==>辨析同上.
full speed ahead/forward全速向前
full speed along一直在全速向前(以前就在全速向前,现在还在全速向前)
7>Police have appealed for witnesses to come forward.
警方呼吁目击者挺身而出.
==>固定搭配.come forward自告奋勇；come along出现,发生,陪伴；没有come ahead的说法.
8>The policeman told the crowds to move along.
警察叫人群向前走动.
==>along/ahead/forward都可以.但意思有些许差异,along强调“一直向前”,ahead/forward只有向前的意思.

ahead 一般表示强调 整体部位的向前 表示一个空间感觉
forward 强调的是时间性 和 给出例句中的 向前冲的感念
而 along 表示独自在前面 表示独自的状态
例第一句 可以用ahead 也可以用along 强调的内容不同
ahead 强调在队伍整体的前部 而along表示she 是单独在队伍的前面 强调单独
希望解释清楚了
给出例句中 ...

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ahead 一般表示强调 整体部位的向前 表示一个空间感觉
forward 强调的是时间性 和 给出例句中的 向前冲的感念
而 along 表示独自在前面 表示独自的状态
例第一句 可以用ahead 也可以用along 强调的内容不同
ahead 强调在队伍整体的前部 而along表示she 是单独在队伍的前面 强调单独
希望解释清楚了
给出例句中 依据内容强调的不同 可以调换 有的不能调换

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ahead指相对于什么在前面
forward指前方，侧重方向
along指沿着，一直，侧重状态
都是副词，可以转换，但意思发生相应的改变

1>She bicycled along,singing loudly . (动作方向的'向前')
It also makes sense if you say, it bicycled ahead...however this sounds odd so it is wise to stick to
along'.
2>The soldiers crept forwa...

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1>She bicycled along,singing loudly . (动作方向的'向前')
It also makes sense if you say, it bicycled ahead...however this sounds odd so it is wise to stick to
along'.
2>The soldiers crept forward under cover of darkness.(动作的方向性),
forward- can be also replaced by 'ahead'....along would still retain the meaning but again..it'll sound odd..
3> from this time forward (时间的方向性),
for this phrase, if you replace 'forward' with 'ahead' and 'along' then it would be wrong.
REMEMBER....from this time FORWARD...just remember this..it's a phrase.
4>The year crept along unnoticed.(时间的方向),
ahead would also make sense but it would sound odd....so keep along in this sentence.
5>The line of cars moved ahead slowly.(动作的‘向前’）
along could be used with 'ahead'
6>Full speed ahead.
this is again sort of a phrase..so just remember that ahead is commonly used in directions.
7>Police have appealed for witnesses to come forward.
警方呼吁目击者挺身而出。
in this case, along and ahead would be wrong..forward wouls grasp the meaning...
8>The policeman told the crowds to move along.
警察叫人群向前走动.
again....along is better than the other two
the 3 all mean the samething but you time to fully understand when and how to use it...
however, most people would understand what you mean anyways..

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