How+形容词+主语+谓语！
How nice （形容词）the T-shirt （主语）is （谓语）！（注：名词主语前一定加the/your/this ...）
How interesting this book is！这书多有趣！
How hot the weather is！多热的天！
How beautiful the flowers are！花儿多漂亮啊！
How careful they are！他们多仔细！
How cold it is today！今天多冷啊！
（一）How+副词+主语+谓语！
How quickly（副词）Liuxiang（主语）runs（谓语）！刘翔跑得真快啊！
How well she is singing！她唱得真好！
How hard the boy studies！那男孩学习真努力！
（二）How+主语+谓语！
How time flies！时间过得真快！
How the students are working！学生们工作多努力啊！