你的名字

童年的记忆里，你是一轮金色的太阳，温暖了我们的心房，也照亮了前方的路。少年的花园里，你是一颗晶莹的露珠，滋润了我们的生命，也灿烂了青春的雨季。长大以后，你是我们心头永远的结，解不开的是拳拳情意，忘不了的是谆谆教诲。你的名字，平凡而伟大。你的名字，清纯而朴实。啊，老师。我们是你手中放飞的风筝，在你目光的牵挂中，飞向远方，成就辉煌。我们是你心中久远的梦想，时光流逝，岁月变迁，却永不褪色。我们是你记忆中的沉淀，世事变幻，人情冷暖，却永远纯洁。你的名字，崇高而美丽。你的名字，亲切而自然。也许没有人知道你…     

同一个世界同一个梦想

同一个世界，同一个梦想，让圆圆的月亮，永远慈祥。那是妈妈幸福的脸庞，伴我走进甜甜的梦乡。同一个世界，同一个梦想，让七彩的地球，天天歌唱。唱出更快、更高、更强。让我们的歌声，飘向四方。同一个世界，同一个梦想，让红红的太阳，永远灿烂。那是爸爸给我的力量，伴我拼搏，伴我成长。同一个世界，同一个梦想，让蓝蓝的天空，更加明亮。这是我们美丽的家园，让和平的鸽子，自由翱翔。同一个世界，同一个梦想，东方巨龙，搏击风浪。用五千年文明服务世界，龙的传人，播种吉祥。one World，One Dream. offsprings of dragon，sPread…     

立志成才 迎接挑战

岁月飞逝，日不我待。新的世纪，人类为了生存与发展，竞争将越来越激烈。为了适应未来社会发展的需要，迎接未来社会的各种挑战，同学们要树目标，明任务，守纪律，重行动，做新世纪的主人。树目标，就是要树立人生的远大目标。崇高的理想，远大的目标，是人生有所作为的基石，是通向成功的桥梁。希望同学们从小就树立远大的目标，并为实现自己的人生目标而努力奋斗。明任务，就是要明确自己的任务。作为学生，我们的任务是学习，“学习，学习，再学习”。在老师和长辈的教导下，学会学习，学会生活，学会健体，学会竞争，学会做人。守纪律…     

作文新玩家

如果说，小学是花，初中是果，那么，高中则是核。花，红艳艳，是甜蜜的微笑，是浪漫的抒情，是天真的遐想，是美好的憧憬。果，沉甸甸，是串串的沉思，是金秋的向往，是养精蓄锐的追求，是趋向成熟的渴望。核，一颗颗，一粒粒，是莘莘学子的荟萃，是青春力量的凝聚，是人生哲理的蕴蓄，是崭新构想的孕育。核，坚实，凝练，深沉，甚至略带苦涩。它，不再是如花似蜜的小学、初中，不再是无忧无虑的花、果。它，开始在果实里品味人生真谛。它在编织未来，它在孕育希望。看，来年春天，新长的两片嫩叶，正是它那一对腾飞的翅膀。作文新玩家@宓…     

快乐大课间

叮铃铃，叮铃铃，下课铃一响，同学们快速跑步进操场，先做集体广播操，再来分组做活动。跑步，跳绳，踢毽子，排球，篮球，羽毛球，动作娴熟整齐划一，争分夺秒培养集体理念。哦一一大课间，大课间，快乐的大课间，每天锻炼一小时，练得身体强又棒。 叮铃铃，叮铃铃，下课铃一响，同学们快速跑步进操场，先做集体广播操，再来分组做活动。跑步，跳绳，踢毽子，排球，篮球，羽毛球，身手矫健神采飞扬，团结协助培养友爱情感。哦一一大课间，大课间，快乐的大课间，每天锻炼一小时，好好学习争做栋梁。     

找乐儿

课堂这么火，作业这么多，放松放松，自己找个乐儿。踢踢球，唱唱歌，登登山，爬爬坡，把眼放远，卸载心上的枷锁。啦啦啦，一千个乐儿，一万个收获。课程这么紧，考试这么多，放松放松，自己找个乐儿。游游海，下下河，聚聚会，唠唠嗑，把心放宽，眼前是天高海阔。啦啦啦，一千个乐儿，一万首歌。     

教育的眼睛

教育是机智的，灵活的，新鲜的，是流动的，弹性的，有空间的。它不是刻板的，僵硬的，垂死的，教条的。它不是只在课本上，教室里。它无时无处不在，就在校园光洁的路上，在花丛，在树间，在鸟鸣虫唱的耳畔，在餐厅，在宿舍，在有感知有气息的每一个角落。     

雪的情谊

雪有对天空的情谊，那是母女之间的情谊。它，生长于天空，被天空妈妈的乳汁哺育，但最终，它们还是要分离。雪有对大地的情谊，那是父女之间的情谊。它，成长于大地，又让大地爸爸的热量融化，但最终，它们也要分离。雪，要飞回天空，再降下来。有时，会飞到你我的身上。雪有对我们的情谊，那是朋友之间的情谊。它，同我们玩耍，跟我们嬉戏。雪还有对庄稼的情谊。它让庄稼银妆素裹，穿上新衣。它给庄稼盖上棉被，无比欢喜。……这所有的所有，一切的一切，都是，雪的情谊。雪的情谊@胡沁心$江苏省南京市力学小学分校     

例谈对称性在积分解题中的妙用

1轮换对称性的应用定义1设对任意的点P:(:1，xZ，…，x。_:，x。)任日CRn，pZ(xZ，x3，…，x。，xl)任口CR“，…，尸。(:。，xl，…，x。一1)任口C R“成立，则称区域日关于变量:l，xZ，…，x。具有轮换对称性.定义2设函数F(x。，xl，…，x。_;)= F(xZ，x3，…，x。，xl)=…二     

渔歌

爸爸唱渔歌，雄壮，苍劲，是从爷爷那儿学来的。姐姐唱渔歌，悠扬，婉转，是从妈妈那儿学来的。我唱渔歌，清脆，欢快，是从大海那儿学来的。滔滔的大海，叙述着往昔，闪耀着希望。站在昨天和明天之间，我的渔歌，比谁都唱得动听。渔歌@赖松廷     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.