【正确答案】：
（1）SEMANTIC CHANGE MEANS AN OLD FORM WHICH TAKES ON A NEW MEANING TO MEET THE NEW NEED. 
（2）IT DOES NOT INCREASE THE NUMBER OF WORD FORMS BUT CREATE MANY MORE NEW USAGES OF THE WORDS. 
【题目解析】：语义变化意味着一种新的形式，满足新的需要。这并没有增加单词形式的数量，而是创造了更多的单词新用法，从而丰富了词汇。