Analyze and comment on the following.Analyse the morphological s

Analyze and comment on the following.Analyse the morphological structures of the following words and point out the types of the morphemes. dishearten, idealistic, unfriendly
【正确答案】：

（1）EACH OF THE THREE WORDS CONSISTS OF THREE MORPHEMES, DISHEARTEN（DIS+HEART+EN）, IDEALISTIC（IDEAL+IST+IC）, UNFRIENDLY（UN+FRIEND+LY）.

（2）OF THE NINE MORPHEMES, ONLY HEART, IDEAL AND FRIEND ARE FEEE MORPHEMES AS THEY CAN EXIST BY THEMSELVES.

（3）ALL THE REST DIS, -EN, -IST, -IC,-UN AND -LY, ARE  NONE OF THEM CAN STAND ALONE AS WORDS.

【题目解析】：（1）这三个词中的每一个都包含三个词素：使失去勇气（dis+heart+en）、理想主义的（ideal+ist+ic）、不友好的（un+friend+ly）。（2）在这九个词素中，只有心、理想和朋友是可以独立存在的自由词素。（3）其余的dis、-en、-ist、-ic、-un和-ly都不能单独作为单词。