感嘆句用来表示说话人的惊异､喜悦､愤怒或赞赏,常由 what, how 引起｡what 是形容词,用来修饰名词,起加强语气的作用; how 是副词,用来修饰形容词､副词或动词,也用来加强语气｡
　　感叹句的基本句式结构是:
　　1. What + a/an + 形容词 + 单数名词 + 主语 + 谓语!
　　2. What + 形容词 + 复数名词(或不可数名词) + 主语 + 谓语!
　　3. How + 形容词(或副词､动词) + 主语 + 谓语!
　　有时感叹句的主语和谓语可以省略｡
　　怎样把陈述句改为感叹句呢?
　　首先看要感叹的词是名词还是形容词､副词或动词｡如果是名词,就以 what 开头;如果是形容词､副词或动词,就以 how 开头;如果是单数名词,就以 what a/an 开头;如果是复数名词或不可数名词,就以 what 开头;如果要感叹的形容词或副词前面有 very, so, too 等词,应将它们去掉｡再把主语和谓语放在句子的末尾,句末加上感叹号｡例如:
　　1) She is a clever girl.
　　→What a clever girl she is!
　　2) John runs very fast.
　　→How fast John runs!
　　3) It’s fine weather.
　　→What fine weather it is!
　　4) They are working very hard.
　　→How hard they are working!
　　以 what 引起的感叹句可以转换为以 how 引起的感叹句,反之亦然｡例如:
　　1) What an interesting film it is!
　　→How interesting the film is!
　　→How interesting a film it is!
　　2) How strange the man is!
　　→What a strange man he is!
　　巩固性练习:把下列句子改为感叹句｡
　　1. I have read an interesting book.
　　2. The young man speaks English very well.
　　3. The watches are very nice.
　　4. Our classroom is so big.
　　5. They had a good time.
　　
　　Key:
　　1. What an interesting book I have read!
　　2. How well the young man speaks English!
　　3. How nice the watches are!
　　4. How big our classroom is!
　　5. What a good time they had!