[简答题] The grammatical words which play so large a part in English grammar are for the most part sharply and obviously different from the lexical words. A rough and ready difference which may seem the most obvious is that grammatical words (1)______ have "less meaning", but in fact some grammarians have (2)______ called them "empty" words as opposed in the "full" words of 　(3)______ vocabulary. But this is a rather misled way of expressing the (4)______ distinction. Although a word like the is not the name of something as man is, it is very far away from being meaningless; (5)______ there is a sharp difference in meaning between "man is vile" and "the man is vile", yet the is the single vehicle of this 　　 (6)______ difference in meaning. Moreover, grammatical words differ considerably among themselves as the amount of meaning they 　　 　(7)______