2. 外语
  3. ______ is that part of the word that carries the fundamental meaning but has to be used in combination with other morphemes to m

______ is that part of the word that carries the fundamental meaning but has to be used in combination with other morphemes to m

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问题 ______ is that part of the word that carries the fundamental meaning but has to be used in combination with other morphemes to make words.
选项 A、Free root
B、Bound root
C、Morpheme
D、Bound morpheme
答案B
解析 本题考查词汇学知识。英语词根(root)含有明确的语义，一个单词的基本词义都是由它而来。词根又分为自由词根(free root)和粘着词根(bound root)。在各类词素(morpheme)当中，自由词根是唯一的自由形式，也是英语词汇中最稳定的成分。而粘着词根只能固定在拉丁语和希腊语的借词中，无法游离出来构成新词，因此无构词能力。虽然bound root也是morpheme的一种，但定义中有carries the fundamental meaning(表达基本含义)一项，这与前缀、后缀(也是词素)区分开来，故选择morpheme或bound morpheme都不确切。
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