提纲：1.Contingency (偶然性) of opportunity
2.Relationship between opportunity and success
3.My view on opportunity
机不可失，失不再来。机遇常常悄然而来，默默而去。因此，奉劝诸君珍惜机遇，谨慎。
每当机遇降临，伴之而来的是成功的希望，但是机遇不能自行实现成功。假如你要取得成就或要实现你的雄心壮志，你必须努力工作、艰苦奋斗、准备好条件。否则，机遇来临你却无法利用。
成功者与失败者的区别就在于处理机遇的态度。成功者做好充分准备迎接机遇的适时来临。而失败者工作懒散，眼看机遇悄然而过。
我的观点是，在我们的社会里人人都有许多机遇，但是只有那些做好充分准备并且高度称职的人才能利用机遇达到目的。
Opportunities don’t come often. They come every once in a while. Very often, they come quietly and go by without being noticed. Therefore, it is advisable that you should value and treat them care.
When an opportunity comes , it brings a promise but never realizes it on its own. If you want to achieve something or intend to fulfil one of your ambitions, you must work hard, make efforts and get prepared. Otherwise, you will take no advantage of opportunities when they come to visit you.
The difference between a man who succeeds and one who does not lies only in the way each treats opportunities. The successful person always makes adequate preparations to meet opportunities as they duly arrive. The unsuccessful person, on the other hand, works little and just waits to see pass by.
In my opinion, there are plenty of opportunities for everyone in our society, but only those who are prepared adequately and qualified highly can make use of them to achieve purpose.