学生普遍认为英语动词难学，尤其是非限定动词中的动名词和现在分词的用法更使那些非英语专业的学生或自学者感到困惑。动名词和现在分词，它们的词形相同，一般是由动词原形加词尾ｉｎｇ（ｖ．＋ｉｎｇ）构成。然而，它们的句法功能却各异。动名词具有名词和动词的特征... Students generally believe that English verbs are difficult to learn, especially the use of verbs and current participles in non-restrictive verbs that make them more difficult for non-English majors or self-learners. The gerunds and present participles have the same word form, which is generally composed of the verb form plus suffix ing (v.+ing). However, their syntactic functions are different. Verbs have the characteristics of nouns and verbs...