besides,except,but,other than,except for, except than / when的区别

A.用于否定句时,besides,except与but可相互替换。如No other students passed the difficult maths exam except / beside / but Lin Tao and Wu Dong.

B.用于肯定句时的用法

  1. except意为“除……之外”(不再有),如We all passed the exam except Tom.
  2. besides意为“除……之外”(还有……),如We all passed the exam besides Tom.

 温馨提示:besides在句中的位置较灵活,可放在句首,亦可放在句中;而except多放在句中。此外,except前几乎总有all,any,every,no及其复合词等;而besides前可用,也可不用,依句意而定。如He answered all the questions except the last one.

I have a few friends besides you.

3.except for意为“除了因为……”,表示除去整体中的一部分,它所叙述的事实或细节部分地修正句子的主要意思。如The composition is good except for a few spelling mistakes.

C.except和but / other than都可接名词、代词、动名词、动词原形,可以互换;但except后接副词、介词短语、when从句等时,but / other than不可替换except。

如He has always been in high spirits except recently.

The window is never opened except in summer.

D.but,except后都可接thatong句作宾语,二者可互换。

如I asked nothing from him but / except that he should write to me every other week.

E.以上比较了except,besides,but作介词的区别,另外,besides还可用作副词,意为“而且,还有”。如Idon’t want to go; besides, Iam too tired.

This is my best suit; I have two other besides.

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