What a beautiful city it is！   （这是个）多么美丽的城市啊！ 句型： （1）what + a/an +形容词+单数可数名词+陈述句（主语+谓语）　　　        What a beautiful city it is!　　 　    What an interesting story she told! 　 （2）what+形容词+复数可数名词/不可数名词+陈述句（主语+谓语）　　 　    What expensive watches they are! 　　　        What terrible weather it is!