Intonation of the Declarative sentences (statements)
A declarative sentence states a fact in the affirmative or negative form. In a declarative sentence the subject precedes the predicate. It is generally pronounced with a falling intonation.
An exclamatory sentence expresses some kind of emotion or feeling. It often begins with the words ‘what’ and ‘how’, it is always in the declarative form (no inversion takes place). It is generally spoken with a falling intonation.