某对外发行的英文刊物正在进行中学生英语征文，请根据下列提示，以Don’t Los Your Courag为题写一篇短文，以便向该刊投稿。[提示]1. 上高一的第一天；2. 英语老师刘老师面带微笑进入教室；3. 她自我介绍，应称呼她Miss Liu，而非Tachr Liu；4. 要求我们每人到教室前自我介绍；5. 我又怕又羞难以启齿；6. 老师鼓励我，我讲得很好；7. 难忘的第一节课；8. 实践出真知。遇到困难不能灰心丧气。[注意]1. 词数100~140；2. 不要逐字翻译提示，可适当增加细节使文章连贯。Don’t Los Your CouragNvr shall I forgt th first nglish lsson givn by Miss Liu. On that day， whn sh ntrd th classroom， w found that sh was a young and bautiful lady with a big smil on hr fac. Thn sh introducd hrslf saying that w should call hr Miss Liu instad of Tachr Liu， a momnt latr， sh lt all of us go to th blackboard and say somthing about ourslvs in nglish in turn. Whn it was my turn， I flt so shy and farful that I didn’t dar to say a word bfor th class. Sh cam up to m and said kindly， “Don’t b afraid. I bliv you can do it. Com and hav a try.” My fac turnd rd whn I hard that. At last， I wnt to th blackboard and was abl to do it quit wll. Sh praisd for what I had don. Up to now， I can still rmmbr hr words in th first nglish lsson： “Practic maks prfct. Don’t los your courag whn you mt with difficultis. Try on and on until you succd.”