参考答案：

The differences in spelling between American and British English resulted from different spelling re-form policies adopted in the U. S. A. and the U. K. It seems that the Americans adopted a more radical spelling reform policy than the Englishmen. We know that English is a language notorious for the non-correspondence between pronunciation and spelling. A letter or a combination of letters may be pronounced in different ways when they occur in different words. The Englishmen seemed to tolerate this non-correspondence to a greater degree than the Americans. The Englishmen tend to naturalize the pronunciation but retain the spelling of the loan words. When the spelling of the loan words is changed, the change is usually a minor one. However,the Americans tend to naturalize the spelling of the words that demonstrate severe non-correspondence between pronunciation and spelling.