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!