Take “The dog is chasing a cat” as an example to explain its gra

Take “The dog is chasing a cat” as an example to explain its grammatical meaning.
【正确答案】：Grammatical meaning refers to that part of the meaning of the word whicheindicates grammatical concept or refatjonships. In the above sentence, the word "dog" and "cat" are nouns and both are ingular used as subject and object in the sentonce respectively;"is chasing" is the predicate verb in present continuous tense, and "the" and "a" are determiners, restricting the peferent and indicating number.