【正确答案】：
THEY ARE IDENTICAL WITH ROOT WORDS, AS EACH OF THEM CONSISTS OF A SINGLE FREE ROOT, FOR EXAMPLE, MAN, EARTH, WIND, CAR, ANGER. THEREFORE, WE MIGHT AS WELL SAY THAT FREE MORPHEMES ARE FREE ROOTS.
A BOUND ROOT IS THAT PART OF THE WORD THAT CARRIES THE FUNDAMENTAL MEANING JUST LIKE A FREE ROOT. UNLIKE A FREE ROOT, IT IS A BOUND FORM AND HAS TO COMBINE WITH OTHER MORPHEMES TO MAKE WORDS.
【题目解析】：本题考查自由词根和黏着词根的区别。自由词素与词根一致，因为词根就是由单个的自由词素构成的，如 man, earth, wind, car, anger 等。因此，我们不妨说自由词素就是自由词根。粘附词根，是带有基本意义的词的组成部分。与自由词根不同的是，粘附词根是一种粘附形式，必须与别的词素结合在一起才能构成词。