(1)besides常与other／more／else等词连用except常与all／every／everyone／none／nobody／everything／nothing等总括词连用。
eg. He had other people to take care of besidesme.
All the students in Class One went to the cinema except Li Ping.
(2)若句中没有实义动词do的某种形式except后接动词不定式而besides后接动词的-ing形式。
eg.I had no choice except to obey／besides obeying his order.
(3)若句中有实义动词do的某种形式二者后面都可以接动词原形。
eg.She has nothing to do except／besides go with him.
(4)二者后面都可以接从句。
eg.①Besides that he explained the theoryhe gave us some examples.
②He is a good student except that he sometimes comes late to school.
①表示对整体主要部分的肯定和对局部的否定起部分修正主要意思的作用。
eg.Your composition is quite excellent except for several spelling mistakes.
②表示非同类事物进行比较。
eg.The street is empty except for several cars.
③置于句首，表达except的含义。
eg.Except for thiseverything is in order.
except for后接名(代)词可以转移为except＋从句或其他介词短语。
eg.The climate here is good except for some rainy days.(except when it rains；except that it sometimes rains；except on the rainy days)
except 与except for的区别在于：
从形式上看,except后面不仅可以接短语,还可以接that引导的从句,而except for后面只能接名词短语.
从内容上看,except表示“同类中除此以外”而except for则是“不同类中的除此以外”如：
We all went to the park except Mary.
除Mary外我们都去公园了.
其中,we与Mary是同类比较
Your composition is good except for the handwriting.
除字迹以外,你的作文很不错.
其中,composition 与handwriting是不同类比较
It will do except that it is too long.
这行,只是太长了一些.
besides 表示“除了…以外,其他的也”如：
We all went to the park besides Mary.
除Mary外,我们也都去了公园.
but for表示“要不是,多亏”
如：We couldn”t have succeeded but for your help.
要不是你的帮助,我们不会成功.
except与except for的区别
（1）except表示“除去，不包括”，强调所排除的“不包括在内”，一般表示同类之间的关系，常同nothing,
all, none, nobody, any等不定代词以及every连用。except 经常接名词或代词，但也可接副词，介词短语，例如：
① The office is open every day except Sundays. 除了星期日这家公司每天都营业。
② You can
have any of the cakes except this one. 除了这块蛋糕，你哪块都能吃。
③ She saw nothing
except snow. 除了雪她什么也没看见。（nothing except = nothing but = only）
（2）except经常接名词、代词，也可接副词，介词短语，不带to的不定式或从句等。例如：
④ She looked everywhere except here. 除了这里，她到处看。
⑤ You may drop in at any time except at noon. 除了中午，你任何时候来都可以。
⑥ She doesn’t do anything except sit and watch TV. 除了坐着看电视外，她什么也不做。
⑦ It was a good hotel except that it was rather noisy. 这家旅馆还不错，只可惜吵。
⑧ He usually goes to work by bicycle except when it rains.
除了下雨的时候，他通常骑自行车去上班。
1)The weather is fine today except in the northwest.此句相当于:
The weather is
fine today except that it is in the northwest.
2)His mother never takes any
exercise except on the dance floor.此句相当于:
His mother never takes any exercise except that she has adance on the
floor.
All the buildings are excellent except for their location或者All the buildings
are excellent except that the place on which the buidings are built is
notgood.
2)当except用在句首时往往改用exceptfor。例如:
There was no single person in the dark street that night except apoliceman on
his duty.此句相当于:
Except for apoliceman on his duty,there was no single person in the dark
street that night.
1)Tom is a good student except that he is careless.此句相当于:Tom is a goods
tudent except for his carelessness.
2)Tom seldom comes late to school except when it rains hard.此句相当于:Tom seldom
comes late to school except on a heavily rainy day.
except/except for/except that/except when 的区别
（1）except表示“除去，不包括”，强调所排除的“不包括在内”，一般表示同类之间的关系，常同nothing, all, none, nobody,
any等不定代词以及every连用。except 经常接名词或代词，但也可接副词，介词短语，例如：
① The office is open every
day except Sundays. 除了星期日这家公司每天都营业。
② You can have any of the cakes except
this one. 除了这块蛋糕，你哪块都能吃。
③ She saw nothing except snow. 除了雪她什么也没看见。（nothing
except = nothing but = only）
（2）except经常接名词、代词，也可接副词，介词短语，不带to的不定式或从句等。例如：
④ She looked everywhere except here. 除了这里，她到处看。
⑤ You may drop in at any
time except at noon. 除了中午，你任何时候来都可以。
⑥ She doesn’t do anything except sit
and watch TV. 除了坐着看电视外，她什么也不做。
⑦ It was a good hotel except that it was
rather noisy. 这家旅馆还不错，只可惜吵。
⑧ He usually goes to work by bicycle except when
it rains. 除了下雨的时候，他通常骑自行车去上班。
（3）except
for也表示“除……以外”，指对某种基本情况进行具体的细节方面的修正。它同except的区别是：except
for后接的词同句子中的整体词（主语）不是同类的，指从整体中除去一个细节，一个方面；而except后接的词同整体词（主语）一般是同类，指在同类的整体中除去一个部分。例如:
⑨ I can answer all the questions except for the last one.
除了最后一题外，所有题目我都可以解答。
⑩ Your writing is good except for a few grammar
mistakes. 除了几处语法错误外，你的作文写得很好。
例如,试比较: All the buildings are excellent except this one. All the buildings are excellent except for their location或者All the buildings are excellent except that the place on which the buid?ings are built is notgood.
2)当except用在句首时往往改用exceptfor。
例如: There was no single person in the dark street that night except apoliceman on his duty.
此句相当于: Except for apoliceman on his duty,there was no single person in the dark street that night.
3 个回复
哈哈哈的玫瑰
赞同来自: 手握大板砖
1. except和besides都可解作“除……之外”但含义不同。
except表示“从所提到的人或事物中除去，即从整体中除去一部分”，表示递减的概念，含义是否定的。besides表示“除了……之外，还有……”，指“在整体中加入一部分”，表示递加的概念，含义是肯定的。
试比较：
①We all went except him.
除他之外，我们都去了。(他没有去)
②We all went besides him.
除他之外，我们大家也都去了。(他也去了)
(1)besides常与other／more／else等词连用except常与all／every／everyone／none／nobody／everything／nothing等总括词连用。
eg. He had other people to take care of besidesme.
All the students in Class One went to the cinema except Li Ping.
(2)若句中没有实义动词do的某种形式except后接动词不定式而besides后接动词的-ing形式。
eg.I had no choice except to obey／besides obeying his order.
(3)若句中有实义动词do的某种形式二者后面都可以接动词原形。
eg.She has nothing to do except／besides go with him.
(4)二者后面都可以接从句。
eg.①Besides that he explained the theoryhe gave us some examples.
②He is a good student except that he sometimes comes late to school.
(5)except后面可接for(构成短语except for)或其他介词短语，而besides不能。
except for主要有三层含义：
①表示对整体主要部分的肯定和对局部的否定起部分修正主要意思的作用。
eg.Your composition is quite excellent except for several spelling mistakes.
②表示非同类事物进行比较。
eg.The street is empty except for several cars.
③置于句首，表达except的含义。
eg.Except for thiseverything is in order.
except for后接名(代)词可以转移为except＋从句或其他介词短语。
eg.The climate here is good except for some rainy days.(except when it rains；except that it sometimes rains；except on the rainy days)
注意：二者用于否定句时含义相同，意思是一样的。
eg. He did nothing besides (＝except) this.
除这件事外，他什么事也没做。
2. apart from兼有besides和except for两种含义，后接名词、代词或动名词。
3. but含义与except相同，都表示递减的概念，二者在多数情况下可以互换，但用法稍有区别。
①except可以代替but但but并不一定都可以代替except如果句中有no、all、nobody、who、where等不定代词或疑问词时，多用but后跟宾语从句时，多用except。
②but for含义有时与except for相同，但主要表示“要不是……”，常用于虚拟句，表示一种假设。
③but位置的变化会引起人称代词主、宾格的变化。
No one but I (＝except me) knows it.
No one knows it but me (＝except me).
4. other than含义与except／but相同，都表示从总体中除去一部分后接名词、代词或不定式。
蘇慕嵐
赞同来自:
从形式上看,except后面不仅可以接短语,还可以接that引导的从句,而except for后面只能接名词短语.
从内容上看,except表示“同类中除此以外”而except for则是“不同类中的除此以外”如：
We all went to the park except Mary.
除Mary外我们都去公园了.
其中,we与Mary是同类比较
Your composition is good except for the handwriting.
除字迹以外,你的作文很不错.
其中,composition 与handwriting是不同类比较
It will do except that it is too long.
这行,只是太长了一些.
besides 表示“除了…以外,其他的也”如：
We all went to the park besides Mary.
除Mary外,我们也都去了公园.
but for表示“要不是,多亏”
如：We couldn”t have succeeded but for your help.
要不是你的帮助,我们不会成功.
except与except for的区别
（1）except表示“除去，不包括”，强调所排除的“不包括在内”，一般表示同类之间的关系，常同nothing,
all, none, nobody, any等不定代词以及every连用。except 经常接名词或代词，但也可接副词，介词短语，例如：
① The office is open every day except Sundays. 除了星期日这家公司每天都营业。
② You can
have any of the cakes except this one. 除了这块蛋糕，你哪块都能吃。
③ She saw nothing
except snow. 除了雪她什么也没看见。（nothing except = nothing but = only）
（2）except经常接名词、代词，也可接副词，介词短语，不带to的不定式或从句等。例如：
④ She looked everywhere except here. 除了这里，她到处看。
⑤ You may drop in at any time except at noon. 除了中午，你任何时候来都可以。
⑥ She doesn’t do anything except sit and watch TV. 除了坐着看电视外，她什么也不做。
⑦ It was a good hotel except that it was rather noisy. 这家旅馆还不错，只可惜吵。
⑧ He usually goes to work by bicycle except when it rains.
除了下雨的时候，他通常骑自行车去上班。
（3）except for也表示“除…以外”，指对某种基本情况进行具体的细节方面的修正。它同except的区别是：except
for后接的词同句子中的整体词（主语）不是同类的，指从整体中除去一个细节，一个方面；而except后接的词同整体词（主语）一般是同类，指在同类的整体中除去一个部分。例如:
⑨ I can answer all the questions except for the last one.
除了最后一题外，所有题目我都可以解答。
⑩ Your writing is good except for a few grammar mistakes.
除了几处语法错误外，你的作文写得很好。
except,besides,except for用法的关联和区别
1.作介词用法时,这三个词都有"除…之外"的含义,但except常与do／does／did／have／has／had
nothing等词形成搭配用法,或者与全部肯定词all、everything、everyone等连用,或者与全部否定词nothing、nobody等连用,因此except加宾语作介词"除…之外"时常表示从整体中剔除一部分；而besides作"除…之外"时则表示"另外附加"的含义,相当于"in addition to"。试比较下列例句:
1)He did not hing except watch TV yesterday.
2)He said nothing except to smile just now.
3)All the students took at rip except Tom yesterday.
4)We need 3 more persons to finish the job besides／inaddition to us two.
2.作介词用法时的except后可接多种情况的介词短语。在这种情况下,except后的介词是不可省去的,except加介词的实际作用就相当于连词加相关的从句。例如:
1)The weather is fine today except in the northwest.此句相当于:
The weather is
fine today except that it is in the northwest.
2)His mother never takes any
exercise except on the dance floor.此句相当于:
His mother never takes any exercise except that she has adance on the
floor.
需要强调的是except与exceptfor的用法区别:
1)Except后排除的内容与主语往往是同一类的,而exceptfor后所排除的内容与主语往往不是同一类的。例如,试比较:
All the buildings are excellent except this one.
All the buildings are excellent except for their location或者All the buildings
are excellent except that the place on which the buidings are built is
notgood.
2)当except用在句首时往往改用exceptfor。例如:
There was no single person in the dark street that night except apoliceman on
his duty.此句相当于:
Except for apoliceman on his duty,there was no single person in the dark
street that night.
3.相当于连词用法的except与相当于连词用法的besides的区别仍然保持它们作介词用法的含义。试比较下列例句:
1)Tom is a good student except that he is careless.此句相当于:Tom is a goods
tudent except for his carelessness.
2)Tom seldom comes late to school except when it rains hard.此句相当于:Tom seldom
comes late to school except on a heavily rainy day.
except/except for/except that/except when 的区别
（1）except表示“除去，不包括”，强调所排除的“不包括在内”，一般表示同类之间的关系，常同nothing, all, none, nobody,
any等不定代词以及every连用。except 经常接名词或代词，但也可接副词，介词短语，例如：
① The office is open every
day except Sundays. 除了星期日这家公司每天都营业。
② You can have any of the cakes except
this one. 除了这块蛋糕，你哪块都能吃。
③ She saw nothing except snow. 除了雪她什么也没看见。（nothing
except = nothing but = only）
（2）except经常接名词、代词，也可接副词，介词短语，不带to的不定式或从句等。例如：
④ She looked everywhere except here. 除了这里，她到处看。
⑤ You may drop in at any
time except at noon. 除了中午，你任何时候来都可以。
⑥ She doesn’t do anything except sit
and watch TV. 除了坐着看电视外，她什么也不做。
⑦ It was a good hotel except that it was
rather noisy. 这家旅馆还不错，只可惜吵。
⑧ He usually goes to work by bicycle except when
it rains. 除了下雨的时候，他通常骑自行车去上班。
（3）except
for也表示“除……以外”，指对某种基本情况进行具体的细节方面的修正。它同except的区别是：except
for后接的词同句子中的整体词（主语）不是同类的，指从整体中除去一个细节，一个方面；而except后接的词同整体词（主语）一般是同类，指在同类的整体中除去一个部分。例如:
⑨ I can answer all the questions except for the last one.
除了最后一题外，所有题目我都可以解答。
⑩ Your writing is good except for a few grammar
mistakes. 除了几处语法错误外，你的作文写得很好。
XIII_Tresdecim
赞同来自:
1)Except后排除的内容与主语往往是同一类的,而exceptfor后所排除的内容与主语往往不是同一类的。
例如,试比较: All the buildings are excellent except this one. All the buildings are excellent except for their location或者All the buildings are excellent except that the place on which the buid?ings are built is notgood.
2)当except用在句首时往往改用exceptfor。
例如: There was no single person in the dark street that night except apoliceman on his duty.
此句相当于: Except for apoliceman on his duty,there was no single person in the dark street that night.
3.相当于连词用法的except与相当于连词用法的besides的区别仍然保持它们作介词用法的含义。
试比较下列例句: 1)Tom is a good student ex?cept that he is careless.
此句相当于:Tom is a goods tudent except for his carelessness.
2)Tom seldom comes late to school except when it rains hard.
此句相当于:Tom seldom comes late to school except on a heavily rainy day.