关于出国留学利弊的作文【一】
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.
关于出国留学利弊的作文【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：
关于出国留学利弊的作文【三】
所谓一日之所需，百工斯为备，有前人的努力，发明出各式各样的产品，我们才有便利的生活。现在的科技很发达，每个人几乎人手一支手机，我想，最伟大的发明应该就是网络了！
网络，可以让你跟远方的人取得联系；网络，有助于增加知识、提供生活资讯、广交朋友、排除寂寞、打发时间；网络，人际关系可获得改善。但网络同时有它的好处与坏处。网络，真实姓名、年龄、外表皆可隐藏。有些人会遗弃现实，转于投向虚拟世界，对他们而言，虚拟世界比真实世界更真实。在逃离现实的时候，不知不觉会发展出不当的网络使用，就好像上了瘾一样，欧美国家称这些人为网络狂。
网际网络世界丰富的内涵可使个人从单调的生活中解放出来，让人能依自己独特的想象力发展各自的潜能与兴趣，对一些人而言，当他们的身份与他人不同时，网络的匿名是具有正面意义的，虚拟网络空间可以满足人际交往、归属感、学习、自我尊严、自我实现的需求，也是个人学习、显现个人网络专业、提高成就感最好的场域，属于人类基本需求最高级的自我实现之成就感可在此环境中发挥出来。
网际网络虽然带来许多的便利性，包括人际互动、友谊、支持、归属感、高成就感等，但是却也带来一些负面的效果，包括焦虑、易怒、失落、没有勇气等心理幸福感的丧失，我们必须要认清自己是人的本质，科技始终来自于人性，科技只是一种工具，并非人的全部。我觉得网络是生活中最伟大的发明，只要你正当的使用，它终究会给你带来好处的。
关于出国留学利弊的作文【四】
上世纪八十年代，手机开始使用，但只有有钱人家才有手机，到了九十年代，手机开始普及但却很笨重，随着时代的快速发展，人们的通讯工具日益增加，手机变得小巧了，功能也增加了很多，不管男女老少几乎人手一台，成为了我们日常必不可少的物品。然而手机却有利有弊。
在我们的日常生活中，首先，手机可以让我们随时随地和家人联系，这不仅在我们外出时可以使父母放心，也可以在我们遇到危险时及时求助；其次，手机可以便于朋友交流，能够增进友谊，在我们学习遇到困难时，还可以与同学讨论；再次，手机小巧方便携带，我们可以看到有价值的拍下来并及时与朋友进行分享；然后，手机中还有闹钟功能，我们不必再使用笨重的闹钟，不管在哪里手机里的闹钟都可以提醒我们，这个时间给做什么事情了。最后，我们还可在手机上浏览信息，及时知道面面俱到的最新消息。
手机固然便利，然而也有弊端。
首先，健康是大家共同关心的问题手机对人类的健康有着一定的影响。睡觉时，很多人把手机放枕边，手机的辐射会对人类的中枢神经系统造成机能性障碍，引起头痛、头昏、失眠、多梦和脱发等症状，有的人面部还会有刺激感。很多人经常熄灯后玩手机，手机的强光，会是黄斑部病变，轻者眼睛干涩，重者失明。其次，现在很多人得了“手机依赖症”，这严重耽误学习和工作。再次，现在学生们都有手机，档次各不相同，这极容易造成心里不平衡，引起攀比之风，给父母造成经济负担。最后，手机是贵重物品，这不仅给不法分子带来了偷窃的机会，还有可能引起一些不良学生偷盗的现象。严重影响了校园治安。
手机有利有弊，但只要我们合理的使用手机，扬长避短，发挥它应有的多用，造福我们的学习、工作、生活。我们应管理好自己的生活，作为一名中学生，我们应从我做起，对于合理使用，并用它传播正能量。
关于出国留学利弊的作文【五】
谈起网络，不少人都要开始眉飞色舞，津津乐道了。但说真的，网络对你而言真的是受益终生的精神食粮吗？
对某些人而言，当然是。他们从小学开始便接触了各种软件、网游、单机游戏，甚至在个位数的年纪已经冲上了排行榜，开始发家致富。
在学校不善言辞，胆小懦弱的他们，“回归”了网络的虚拟生活便开始解放“天性”。一张嘴开始口若悬河，一双手在键盘和鼠标前交换自如。谁能想象到在课堂上畏畏缩缩的他们还能有如此放肆自我的时刻呢？
网络改变了他们，改变了二十一世纪的一切。表面上网络方便，快捷了我们的生活，但在我看来，网络的弊端是我们更应该思考的地方。
网络使人们的距离越来越远。
很多人也许要开始有疑问了，网络不是让人们更亲近吗？何来的距离呢？在交友软件越来越受欢迎的二十一世纪，人们即使相距着大海洲际，一个电话也能解相思之愁。在遥远的古代，李白用一句“举头望明月，低头思故乡”的千古绝唱，道出了多少游子的浪漫乡愁。
而现在，没有人再去空发思乡之愁，也没有人喜欢每天打电话互相寒暄，更多的人是低着头刷手机，忙着回微信中别人群发的信息。甚至逢年过节，一桌丰富的菜都无人问津，对面而坐的两人互发作节日快乐。
网络使人们与社会脱节。
网络刚刚兴起的那年，我八岁，第一次看到爸爸的HTC智能手机的时候，我异常兴奋。一块黑色的“砖头”竟然能玩俄罗斯方块！不仅如此，它还能看电视节目、查资料、购物、给生活带来了许多新鲜感。
可后来，我渐渐发现自己在家宅了很长时间，没有出门购物，没有去图书馆看书，没有定时守在电视前看最爱的节目。这一切都被淘宝电子书，视频软件所替代，出门的时间越来越少，抱着手机的时间越来越多。
这一切都是网络造成的。
那难道网络就真的一无是处了吗？当然不是，网络在提供一些方便的同时，也在挑战着人类的极限。网络越来越发达，世界越来越智能，这一切在几千年以前，怕是诸葛亮和吴用也算不到吧。
人类以不可名状的速度发展，未来会是怎样我们不得而知。但我相信在不远的将来，网络会越来越完善，为人类造福！
关于出国留学利弊的作文【六】
现代化的设会有许多现代化工具。电话、手机、电视、电脑等电子工具越来普及，对人们的生活越来越方便。有了电话我们可以和任何人通话；有了手机我们可以把它放在口袋里，随时随地的与别人交流，不受时间、地点等各种因素的限制；有了电视我们可以坐在家里旅游世界；有了电脑更是对我们有问必答。但今天我决定着重介绍一下手机和手机的利端与弊端。
手机大约在八几年开始使用，但只是使用在一些大城市中比较富裕的有钱人家和一些有特别需要的人。到了九几年手机开始普遍化、大重化、流行化，而不只是局限于个别的人。青年人、中年人、老年人都可以拥有自己的手机，甚至手机在一些学生中都拥有一定的低位、受到一定的青睐。手机的功能也随着时间的发展、社会的进步而越来广泛。一开始只能用于通电话、发短信，渐渐地我们可以用手机听音乐、玩游戏。而现在的手机除了那些简单的功能以外还加入了现代化元素，除了手机可以看电视以外还可以上网、上qq还可以与别人视频通话聊天。如此可见手机在人们日常中的地位与需求。
走在大街上，你会看到很多人都在使用手机，有了手机无论遥远还是很近，无论内地还是海外交流都畅通无阻；有了手机通话变得越来越方便，世界变得越来越小；有了手机你在哪里别人都可以找到你，与你通话；有了手机你不用坐在家里等别人的电话，在外面照样交流。手机让我们的联系更简单，通话更方便，我们的交流需要也得到了更高标准的满足。手机上网也实现了很多人的现实需求，手机随着时代的进步所延伸出来的各种现代化功能给人们带来了诸多益惠。手机虽然有这么多的优点但缺点也一定是固然存在的。有的学生过早的'使用手机而引发了诸多的弊端。利如：长时间的玩手机中的游戏会始我们的眼睛因缺乏休息而酸累，甚至这会成为我们视力下降得元凶、长时间的玩手机中的游戏更有可能使我们忘记了学习，而导致我们的学习下降、手机中的电子书会使我们过早的成熟、不利于我们的身心发展更不利于我们的健康成长。如果这样手机就不是为我们的生活带来便利而是对更多人的成长带来阻力。
我们如何让手机的弊端转化为利端呢？我想这就要靠人们的约束力了。如过我们合理的利用手机管理好自己，不做游戏的奴隶而做手机的主人，我想哪么手机一定会给我们带来无穷的福利。
