请根据下面表格内容提示，用英语写一篇演讲稿。
自我介绍
姓名：李华（第一中学学生） 年龄：19岁
演讲主要内容
1．即将高中毕业，对如何利用好当前的时间谈几点看法；
2．明确学习目的和学习方法；
3．毕业后，无论继续学习或从事工作，都要立志为祖国作贡献。
注意：1．不要逐句翻译，可适当增加细节，以使行文连贯。
2．词数：100～120。
My dear schoolmates, let me introduce myself first．My name is Li Hua．
My dear schoolmates, let me introduce myself first．My name is Li Hua．I’m 19 years of age．The topic of my speech is “We should try hard to make contributions to our motherland”．
We will graduate from school in a few months．How to make good use of the present time is a serious matter．In my opinion, firstly, we should know that time is limited; secondly, we should know the purpose of our study; thirdly, we should also master the correct ways of study．Apart from what I have mentioned above, I’d like to say that no matter whether we go on with study or take a job after graduation, we ought to make up our minds to devote ourselves to our homeland．
网友回答
(答案→)
My dear schoolmates, let me introduce myself first．My name is Li Hua．I’m 19 years of age．The topic of my speech is “We should try hard to make contributions to our motherland”．
We will graduate from school in a few months．How to make good use of the present time is a serious matter．In my opinion, firstly, we should know that time is limited; secondly, we should know the purpose of our study; thirdly, we should also master the correct ways of study．Apart from what I have mentioned above, I’d like to say that no matter whether we go on with study or take a job after graduation, we ought to make up our minds to devote ourselves to our homeland．
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