讲一下区别

讲一下区别 Work hard next time,and you will succeed.Working hard,you will make it,I believe.为什么第一句用work，而第二句用working?   

参考案 这涉及到中的两个重点语法。
1. 句型结构
祈使句+and，or+将来时的一句话。
如： Work hard and you will succeed. 努力学习，你就会成功。
Hurry up or you will be late. 快点，否则你就迟到了。
此句型的特点是 祈使句（也就是用动词的原型）
2.非谓语动词---分词做状语
Working hard, you will make it.
主句是 you will make it. 前面的动作 work hard 逻辑主语也是主句的主语you， 所以用ing形式做状语。
此句可以改成： (If you )work hard, you will make it.

再如： Standing there , you can see him clearly.
/ (If / When you) stand there, you can see him clearly.