1、what开头的感叹句主要有以下两种形式：
（1）What a/an+形容词+可数名词单数（+主语+动词）！
例如：
What a fine day(it is)!
这是多么晴朗的一天啊！
（2）What+形容词+可数名词复数/不可数名词（+主语+动词）！
例如：
What kind women(they are)!
（她们是）多么善良的女人啊！
What nice music(it is)!
（这是）多么美妙的音乐啊！
2、how开头的感叹句
how开头的感叹句的结构：How+形容词/副词（+主语+动词）！
例如：
How clever(the girl is)!
多么聪明的女孩儿啊！
How fast(the boy runs)!
这个男孩儿跑得多快啊！
扩展资料：
what其他用法
1.What+主语+及物动词
例句1：What he says is reasonable.
解析：What he says是主语从句，what在主语从句中作宾语。
2.what+主语+不及物动词/系动词+介词例句：The judge does not consider what each eyewitness looks like.
解析：what each eyewitness looks like是宾语从句，what在从句中作介词like的宾语。
3.What+主语+系动词
例句：He is not what he was ten years ago.
解析：本句意为“他不再是十年前的他了。”其中what he was是表语从句，what在从句中作表语。
4.What后接名词，作定语
例句1：I gave him what books I had.
解析：what books I had是宾语从句，what在从句中作books的定语。
5.What+及物动词+宾语或What+be done
例句1：What makes the matter worse has been puzzling me.
解析：其中What makes the matter worse是主语从句，what在从句中作主语。
How beautiful the park is!
How carefully Tina does her homework!
what后跟加形容词的名词，若是可数名词，则单数可数名词要加a或an，如：
What good news it is!
What hardworking students they are!
What a nice garden (it is)!
What an honest boy he is!
希望对你有帮助追问
如果名词是复数呢？用how怎么写？举个例可以吗？
追答how 后面不跟名词的，是what 后面跟名词，如：
What friendly and lovely teachers they are!
希望对你有启发
对不起，是主语，主语是复数名词?
追答ok, 其实我明白你的意思了，在评论里加了：
How friendly and lovely the teachers are!
How nice the watches are!
记住是：how+adj/adv+主谓结构
How nice the watch is！
How beautiful the girl is !
How busy they are!
How fast he runs!
How hard they are working!
有时口语中主谓语省略。
How nice!
How beautiful!追问
How nice the watch is！
为什么用the 如果名词是复数呢？