写作思路：从文章的写作目的、中心主旨入手，以使文章中心思想鲜明、深刻地表现出来，正文：
Among all the unforgettable experiences in my life when I’ am looking back on those beautiful old days with fulfillment , there’s one thing that I’ am proud of most. Whenever thinking of it, I would find myself happier and more confident than ever.
在我一生中所有难忘的经历中，当我带着满足感回顾那些美好的旧时光时，有一件事是我最自豪的。每当想到它，我就会发现自己比以往任何时候都更快乐、更自信。
It was on a fine autumn afternoon when I was still a teenager. I noticed an old grandma sitting silently under a tall tree in front of her house, looking rather sad and lonely.
那是在一个秋高气爽的下午，那时我还是个青少年。我注意到一位老奶奶静静地坐在她家门前的一棵大树下，看上去很悲伤和孤独。
I went to have a chat with her. After our short conversation, I got to know that all the old women’s sons and daughters were far away from her, making their lives in big cities and she felt lonely.
我去和她聊天了。在我们简短的交谈之后，我知道所有的老妇人的儿女都离她很远，在大城市生活，她感到孤独。我同情她，意识到村里其实有很多像她这样的老人。所以我突然想到一个好主意。
I felt sympathetic for her, and I realized that there were actually many old people like her in the village. So a good idea occurred to me suddenly.
I gathered my friends, and organized them to visit there old people one by one. We sang songs, danced and told jokes to them, which made them happy. One of them was so moved that tears fell down.
我召集了我的朋友，组织他们一个一个地去看望那里的老人。我们唱歌，跳舞，给他们讲笑话，这使他们很高兴。其中一个感动得泪流满面。
Caring for those around us and passing our happiness to others are what I have learnt that day. I made it, and I feel really proud of myself that gave comfort to those who needed most.
关心身边的人，把自己的幸福传递给别人，这是我那天学到的。我做到了，我真的为自己感到骄傲，因为我给了那些最需要的人安慰。
I have many things in life, but only this one thing makes me unforgettable.
I remember once it rains, the school does not have a class, the more rain under the greater, suddenly, I found a dirty old man our door, I guess he is a beggar, I think he'd need an umbrella, so I dug up an umbrella, but the umbrella is my mother just bought for me, through him, not by him, my mood is very chaotic, I think this kind of person to borrow must not be returned, so I took the umbrella back, I saw a shabby raincoat, open look, there are many large and small holes the above, I think anyway, the person like this, lent him also, put this rotten lent him, I put the raincoat and threw it to the old man, the old man saw a raincoat smiled. I
After a few days, I almost gave it a "good thing" to forget, home from school one day, I saw a red bag door, the bag fitted with a raincoat, hey, the raincoat is not I gave the old man a raincoat? How can come here? I opened the bag, raincoat small hole all to mend, a piece of paper fell down, note the crooked, I identified a long time to recognize, top write: "little friends, thank you!" I was moved and, this I know, people can not just look at. Not bad two words bad face oh!
我最难忘的一件事
我一生有许多事情，可是唯独这一件事情令我终生难忘。
记得有一次下雨，学校没有上课，雨越下越大，突然，我发现我们家门口有一位全身脏兮兮的老人，我猜想他一定是乞丐，我觉得他很需要一把伞，于是我便翻出了一把雨伞，可是这把雨伞是妈妈刚刚买给我的，借他吧，不借他吧，我的心情十分乱，我想这种人借了一定不会还回来的，所以我把这把雨伞放回原处，我看见一件破破烂烂的雨衣，打开一看，上面有许多大大小小的洞洞，我想反正这个人这样子，借给他了也不还，就把这个烂的借给他吧，我把雨衣扔给那个老人，老人看了雨衣笑了笑。
过了几天，我几乎把这件“好事”给忘记了，一天放学回家，我看见家门口有一个红袋子，袋子了装了一件雨衣，咦，那件雨衣不就是我给那个老人的雨衣吗？怎么会跑到这里来呢？我打开袋子一看，雨衣上大大小小的洞洞全部给补好了，一张纸条掉了下来，纸条上的字歪歪扭扭的，我辨认了好久才认出来，上面写着：“小朋友，谢谢你！”我感动及了，这我才知道，看人不能只看外表。坏人脸上没有坏人两个字哦！本回答被网友采纳