In "went" we find______morphemes, and in "classrooms" ______ roots. ( )

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问题 In "went" we find______morphemes, and in "classrooms" ______ roots. (  )

选项 A、two; two
B、one; two
C、one; three
D、two; three

答案D

解析 词素是最小的有意义的单位。题中went是go的过去式,因此went包含两个词素,一个是动词go(去)本身,另一个是过去式标志一ed,只因go的过去式是不规则变化,不加一ed,所以较为隐蔽。词根(root)即为不能再进一步分析而又不损害本身意义的词的基本形式。可见class—rooms包含三个词根,即class,room,classroom。
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