在你的基础上改一些错的地方,当然,在句子结构和样式多样上还需要下功夫.好的文章不是用的词多,而是用了恰当的词
It is very necessary to be a good university studend（student).Good university students is (are)the foundation of the construction of the motherland.If you didn't(don't因为你讲的是一个客观的事,不是指过去） want to be a good student you will lose the best opportunity to study.
How to be a good university student?There are several prerequistes（这个好像写错了吧,可以改为factors) to be a good university student:good character,study hard(并列几个名词词组,可以用hard study）,health(healthy) body,etc.
What I will do in the future is as follows（following).I'll help anybody
who need(needs) help.I'll cherish this chance to(of,珍惜学习的机会） study.I(will) play basketball twice a week ,so I don't worry about my healty（health).