either 用于否定句句末,too 用于肯定句句末,also 则用于句中 how 修饰的是形容词或者副词,how 与形容词和副词连用时,形容词或副词紧 接在 how 之后。 例:How beautiful the pen is! How lovely the baby is! How nice! How well she plays! 2. what 修饰的是名词,what 与名词单数连用时,往往在 what 之后跟不 定冠词 a 或 an。 例:What a beautiful picture it is! What an ugly man he is! What a nice hat she wears!