前者表示"除...以外,还有...";后者表示"从整体中除去..."
alltheessaysarewellwrittenexceptnelson’s.
nelson的文章(除去的)和alltheessays(非除去的)是同类事物,所以用except.
b.除去的和非除去的不是同类事物,用exceptfor,并且从语气上通常表示遗憾.
eg:hisessayiswellwrittenexceptforafewspellingmistakes.
afewspellingmistakes(除去的)和hisessay(非除去的)是不同类的事物.
(3)apartfrom具有多重意义:既可表示besides,也可以表示exept或exeptfor,还可以表示without的意思
apartfromthecost,itwilltakealotoftime.(=besides)
theorphanhadnoonetotakecareofhimapartfromhisuncle.(=except)
hehasdonegoodwork,apartfromafewslightfaults.(=exceptfor)
therecanbenoknowledgeapartfrompractice.实践出真知.(=without)
(4)excepting=except,但一般用于句首或用于not,without,always等词之后
exceptinghisbrother,theyareallright.
everyone,notexceptingmyself,mustsharetheblame.
allofus,withoutexceptingthosewhoknowmoreaboutthesubject,shouldstudy.
allmybrotherscomhereeveryday,alwaysexceptingtheyoungest.
(5)but与except同义,但but多用在every,any,no等和由这些词构成的复合词如everything,anywhere,nobody等词以后及all,none之后
thechildrengotoschooleverydaybutsunday.
youcangetthebookanywherebuthere.
whobutgeorgewoulddosuchathing?