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how+形容词/副词+（主语+谓语）！what+(a/an)+形容词+名词+（主语+谓语）！how主要修饰形容词和副词what主要修饰名词
热心网友
what+名词形式(可数,不可数,形容词修饰的名词短语);how+adj/ !(+可数)whatcleanwateritis!what+a/an+adj/adv+n+subject+veb.可以用how+adj/adv+a/an+n+sub+v替换.eg:whatanicedayitis=howniceadayitis.
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what 后面最终的落点是名词。一般情况有三个句型。what + a /an +adj.+n(单数名词) What a clever boy (he is )!what +adj. +PL (名词的复数) What clever students (they are)!what +adj. +[u](不可数名词) What delicious food (it is )!how +adj. /ad. (形容词后者副词) How hard they are working!How fast they are running !
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如果你所感叹的词是形容词，就用how，如： How beautiful you are! 你真漂亮啊！ How nice it is! 真好呀！ How big this room is! 这个房间真大呀！ 如果你所感叹的词是名词，就用what，如： What a beaufiful girl she is! 她是一个多么漂亮的姑娘呀！ What a nice day today is! 今天是多好一个天啊！ What a big room this is！这是多大的一个房间呀！
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感叹句中how 和what如何使用what后跟名词；how 后跟形容词或副词。
热心网友
How + 形容词/副词 + 主语 + be动词/动词+ 其它成分What + (a/an)+ 形容词 + 名词 + 主语 + be动词How + a/an + 形容词 + 名词 + 主语 + be 动词 How tall the boy is ! How fast the boy is running ! What fine weather it is today ! What a tall boy his brother is ! How tall a boy his brother is !