How +形容詞+ a +名詞+陳述語序　　　
How+形容詞或副詞+陳述語序
What +名詞+陳述語序
What+a+形容詞+名詞+陳述語序
What+ 形容詞+復數(shù)名詞+陳述語序
What+ 形容詞+不可數(shù)名詞+陳述語序
How clever a boy he is!
How lovely the baby is!
What noise they are making!
What a clever boy he is!
What wonderful ideas (we have)!
What cold weather it is!
感嘆句的省略形式為：
What a clever boy (he is)!