How hot it is today！今天天气多么热啊！1.句型：（1）How+形容词/副词+陈述句（主语+谓语）　     How cold it is!    　       How hard he works! 　（2）How+陈述句（主语+谓语）       How he loves his son!（3）How+形容词+a/an+单数可数名词+陈述句（主语+谓语）　    How tall a tree it is!2.how修饰动词时，动词并不提前。   How I want to be a teacher！我多想当个老师啊！上述两种感叹句可以互相转换。例如：What a clever boy he is!→How clever the boy is!        What a cold day it is!→How cold it is!