出国优缺点英语作文【一】
在当今社会，人们生活水平越来越高，科技越来越发达，一些高科技也层出不穷，但是在生活中，有一些发明并不是十全十美，这些例子值得我们深思。
比如，我们生活中最常见的塑料袋，它之所以被誉为20世纪最糟糕的`发明是因为它虽然方便了人们出行，携带东西方便，但是科学家忘记了一点，在塑料袋由慢慢被人们接受到经常使用以后，是否能合理使用并且合理处置用过后的塑料袋。由于它不能被降解，导致环境污染，阻碍植物生长，给农作物带来了严重的减产。
最近，科学家发现了第八个大陆、那是由人们所用过的塑料袋被风吹到海里堆积而成！它们经过海水的慢慢腐蚀，演变成了新大陆！由此看来，并不是所有发明都是十全十美的，但是，为了避免对环境造成更大的伤害，科学家已经开始研制可降解的塑料袋，并且有限制的让人们使用塑料袋，让人们花钱购买塑料袋，提倡使用布包。
再例如，电池是18世纪的杰作，方便了人们储存电，储存电能大，并且能充分利用电，能够安全使用电。但是在当今，电池已经是一个重要污染源了，它如果被扔在地下就会引起大面积土地被污染，导致农作物亡，造成农民不小的损失。因此，电
池这个发明也不是十全十美的。
所以，为了防止土地被电池所污染，人们开始建回收电池垃圾箱，开始回收利用电池，这是一种保护措施。另一种就是发明代替产品，不用电池也可以储存电，但是目前科学家还没有发明出来能够完全代替电池的产品。所以，未来等着我们去发明。
再比如，现在最新的发明——机器人，它们能帮助人类工作，能比人类工作效率高，既实用又方便，让人们的生活更轻松，减小压力。但是，一旦机器人进入市场，并且大量使用会造成什么后果？会使人类失业率增大，造成人类手工业退化。它是方便了人们生活，但是长期使用机器人会使人类社会慢慢停滞不前，所以，我们要合理的使用机器人，只让它们代替人类做一些对人类来说比较高难的工作，这样会更加加大对机器人的利用率，并且没有导致大批人员失业。
由此看来，当今最先进的发明——机器人，也有它的弊端，科技创新并不是十全十美的、我们在合理使用它们同时也要扬长避短，把科技创新的优点加大，缺点减为最小，使科技创新的利用率加强，逐步使人类社会提高。
同学们，让我们用勤奋的双手，智慧的头脑使自己成为未来科技的主人，努力创造发明，为人类社会做出贡献。
出国优缺点英语作文【二】
From: ****
Department of the SPECIAL CLASS GIFTED for YOUTHS
University of Science and Technology
Hefei, Anhui 230026, P.R. China
July 1, 1998
Dear Sir or Madam:
I take great pleasure in recommending Wang Yong, one of my favorite students, for admission into your distinguished graduate program.
Mr. Wang was admitted in 1986 at 14 years of age into the SPECIAL CLASS for the GIFTED YOUTHS, my university's unique program that caters to the intellectual needs of unusually talented Chinese youngsters. It was a rare privilege he earned with his nearly impeccable academic performance through the years of his elementary and secondary school.
He impressed me almost as he entered into my university, a major cradle of china's scientific and technological talents. At the time, members of the Gifted Class all had to spend half a month studying by themselves the principles of calculus and then take an exam so that we could evaluate their self-study capability. Mr. Wang scored the highest grade in that exam. He also exhibited a keenly whetted mind during class discussions. To my regret at the time, his English was not as good as his mathematics or physics.(缺点介绍，公正真实 But I noticed he made a point of working especially hard in improving his English during his five undergraduate years with us. By now, he seems to be at least as proficient in English as most of his former classmates in the Gifted Class.
In my experience with Mr. Wang, I was impressed with not only his extraordinary intelligence but also his ambitions and persistence. I am sure that Mr. Wang will be an outstanding student in any doctoral program that he may care to enroll in. So I would like to support him firmly in his quest recommendation into account when considering his application. I would greatly appreciate it you decide to accept him as he wishes.
Yours sincerely
****
Professor and Deputy Head
拓展阅读：
出国优缺点英语作文【三】
我是复旦大学数学系教授，在此写信推荐王XX。我认识王XX自大学二年级，担任他的导师。在我眼中，他是一个勤奋的学生和一个令人钦佩的孩子。
他是一个令人印象深刻的学生，因为在他大一年级的时候他不得不克服与挑战严重疾病。在我的数学课上第一次遇见他，并没有觉得他有什么特别的!然而，他的成绩好得高过我对他的期望。王XX试图把所有困难的早期数学课程，同时包括离散数学、高等数学，线性代数都学好，在此期间我是不知道他是有病在身的。而大多数学生认为王XX同学就算只准备一门课程的考试都很难，然而，最终他取得一个令所有人都意外的期末成绩，使我深深意识到他那不寻常的决心，他给我们展示了当面对艰难时是如何的坚强。王同学和我经常谈到的各种数学和计算机科学的概念和问题。
在这些讨论，我总能发现他的见解很独特，是个聪明的孩子。他不仅很快理解概念，同时给他提出的问题，他能够分析并提出解决方案。最重要的是，王同学发现任何问题他都认真负责重新审查，如发现不确定性问题，他立即清除他们。我认为这种想法是成为一名优秀的计算机程序员必须具备的基本条件。作为他的导师我会利用机会时常观察进行思想工作。王老师的论文“网络神经”提出很具有挑战性的议题。在我们的书籍中对于这一议题及其应用是非常罕见的。在中国很少有人研究过这个话题，因此该材料选择是有限的。王同学不仅迎接这项挑战，同时在实践中超越其职责分析出了来源和测试精度。
他的学习能力与工作能力非常让我自豪。王同学是很聪明和勤奋的学生。我知道，如果有机会出国留学，他梦想着在美国成为伟大的程序员。他会抓住一切机会实现这一梦想，同时有智慧和能力实现这一梦想。希望你能接受王XX同学的申请并给予他机会!
出国优缺点英语作文【四】
In capacity as Professor of Mathematics at Fudan University?I'm writing to recommend Mr. Wang?Gesintosyour PhD program in Computer Science. I have known Mr. Wang since his sophomore year of college?and have acted as his thesis advisormentor. In my experience?he is a gifteddiligent student?and an admirably hard worker.
Wang is an impressive student because he has been forced to overcome the significant challenge of a serious illness during his freshman year. When I first met Wang in my Discrete Math class?he did not appear to be anything special to me. While his exam scores were good?they were not as high as I would now expect of him.
What I didn't know then was that due to his illness?Wang was attempting to take all of the difficult early mathematics courses at one time?including Discrete Mathematics?Advanced Mathematics?Linear Algebra?and Possibilities. While most students found preparing for just one set of these exams difficult?Wang was overwhelmed by four of them. But in the end?he achieved an impressive score on the final exam?which made me conscious of his unusual determination he demonstrates when confronting difficult challenges.
Mr. WangI have often talked about a variety of mathematicscomputer science conceptsproblems. During these discussions?I always found him to be delightfully intelligent. Not only does he quickly understand the conceptsproblems presented to him?he is able to analyze these problemspresent solutions. But perhaps most important is that Wang's thinking is intensely rigorous. When looking at any question?he carefully scrutinizes itif he finds any uncertain issue
he clears them up immediately. I believe this kind of thought is essential to become an excellent computer programmer.
Serving as his thesis advisor?I had a first-hand opportunity to observe the way in which Wang's mind works. In his senor thesis?Mr. Wang mainly discussed two challenging questions in regards to″ANN″。 In our books in China?knowledge of ANNits uses are very rare. Few people in China have studied this topicconsequently?the materials that are available on ANN are limited. Working on this difficult project?not only did Mr. Wang rise to the challenge?but he went abovebeyond the call of duty to analyze his secondary sourcestest them for accuracy in practice. In this way?he found mistakes in the book that we use. His diligencehard work made me extremely proud of him.
出国优缺点英语作文【五】
我的缺点之一是写字老是歪七扭八，常常让妈妈说这个字要改，那个字写得不工整，其实我是因为想赶快把手边的功课写完好出去玩，才把功课写得乱七八糟，还自以为是草圣张旭呢，我改过这个缺点的方法是：首先要把书桌清空，不要让会影响我的杂物摆在桌上，开始写功课时必须心平气和的慢慢写，不任心浮气躁找上我，写完功课以后一定要再把功课彻彻底底的检查一遍，才不会出现错误，有了这样的改进，成果似乎慢慢浮现了。
我的缺点之二是每次总是爱跟妈妈顶嘴，只要妈妈讲一件事，我总会连珠炮似的跟妈妈辩驳，我常以我的三吋不烂之舌，把妈妈顶撞的哑口无言，脸上一阵青一阵白，我的成就感油然而生，不过顶撞长辈似乎是件不礼貌的事，可是每每我都会妈妈争得面红耳赤，后来我的解决方法是先冷静慢慢听妈妈把话讲完，再跟妈妈说我的想法，经过几次沟通之后，我们渐渐能了解彼此的想法，也懂得良性沟通。
缺点是全人类如影随形的恶梦，所以我们要尽力把缺点这个噩梦驱逐出境！也愿我们挑战成功！
