Answer the following questions. Your answers should be clear and

Answer the following questions. Your answers should be clear and short.What is semantic unity of idioms?
【正确答案】：

（1）AN IDIOM MAY CONSIST OF MORE THAN ONE WORD, EACH HAS ITS MEANING, AND PART OF SPEECH.

（2）HAS A SINGLE MEANING.

（3）FUNCTIONS AS ONE WORD-EQUIVALENT.

（4）IN MANY CASES, ILLOGICAL RELATIONSHIP BETWEEN THE LITERAL MEANING OF THE CONSTITUENT WORD AND THE MEANING OF THE WHOLE IDIOM.

【题目解析】：（1）习语可以由一个以上的词组成，每个词都有自己的含义，是言语的一部分。（2）具有单一含义。（3）相当于一个词的功能。（4）在许多情况下，构成词的字面意思与整个习语的意思之间是不合理的关系。