快乐的一天 今天是快乐的一天，我很早就起了床，因为我们等会要去钓鱼。 我们来到池塘旁边，正看见一群群鱼儿在水中欢快 的跳跃。我们拿上鱼杆正准备钓鱼，这一群鱼还真狡 滑 ，偷偷吃掉了我放下去的诱饵。我一看旁边的老爷 爷已经钓上来了好多条鱼了，而且条条都很大，很胖， 活像一个个胖娃娃。我看了以后并没有灰心，静静地守 在那里，我突然感到好像有鱼快上勾了，我上一拉还是 不够快，让鱼给逃走了。我心想这鱼还真狡猾。 我钓了一会鱼，就跑到对面的草地上去玩。草地上胜开 了各种颜色鲜艳的花，我不禁做起了花环，费了我九牛二 虎地力气终于把花环做好了，花环可漂亮了，上面镶嵌着 各种颜色的美丽小花，经过阳光的照射，在太阳底下显得 格外美丽。 下午，我们在河边捞小虾米和小鱼还有螺丝。我拿上网兜 往小鱼，虾米最多的地方一捞，捞到了一条小鱼和一只小 虾米。然后，我们还在水藻里找螺丝，和虾米，偶尔还会发 现有几只水蜗牛。 快乐的时光总是短暂的，不一会就到了傍晚。我依依不舍 地离开了。
最长的跑道是人生；最难的跑道是转弯；最难对付的对手是自己；最难超越的对手也是自己！那一幕虽不长，但却一直驻扎在我心里，是我人生的励志经典大片。那是怎样一个却让我铭记的经典大片呢？时间推回到我的小学五年级，一次运动会上……。发令枪声响过只十几个秒针滴哒，我己经遥遥领先，甩出第二名近半个跑道，我说不出的兴奋，功的味道真好! 点燃了兴奋的我回头张望己然是败家的对手们，那种成功的领略己在云里雾里……就在此时，我的脚下突然一阵刺痛，不意又难耐的剌痛；这只受伤的脚逃也似地连出了几步，然后我跌倒了！而且是自己把自己绊倒了，那一刻我脑子里也轰然一声有什么重重地塌了……等我明白了我的所处境遇时，我的心己经被这不期遇的挫败扎得很痛很痛，我知道我完了，我心理被诸多的埋怨堵得满满的、满满的，届时一种酸酸的东西开始模糊眼睛，我的腿受伤了，我的对手们正在接近终点，我痛苦地知道：无论怎样努力我都难逃第一，倒数的第一！我还有必要继续吗！我己经被会场上几千双眼神压得抬不起头来，我对自己说“我需要马上逃离，立刻逃离！”然后可怜兮兮的我回转身准备退出跑道。就在这时、听到突然一声断喝“跑完剩下的路，跑赢自己！”，那是我己满头白发的体育老师，我定在那里正在犹豫时，老师己冲进了跑道，不由分说拉起我冲向终点，跑道上只我和我的老师，那刻会场好静，静得只剩下了心跳。就在我们接近终点那刻，场上突然掌声雷动，我们赢得了比冠军还多的掌声！退场之后，我的老师很有深意地对我说、孩子你要记住：“一凡事从来没有定局，一直要有风险意识，否则就将面临风险了；二不要过多地关注对手，而要更多的关注自己，因为人生最大的对手是自己；三人生就是长跑，绝不可以输给自己！”长大了些的今天的我，才算明白了老师那天三句话的深义，同时我今天也悟得“人生难的不是远处的高山，而是脚下的沙子！”这一幕一直就是我的经典大片，其实你也有这样的大片，翻翻吧，你或许会有许多惊喜发现。这些发现会让你很暖、很软、又很给力！最后我要说：在我追逐成功之时，恰恰遇到了我的这位恩师，人生恩师！逐梦时节恰逢君，感君助我跑人生，震憾！感恩！亲子雅心于上海。
我发给你四篇吧！1、写人笑星凯凯 四川彭山青龙初中三年级 许利霞 今天，我给你们介绍笑星凯凯。什么，你没听说过？这只能怪你信息不灵通，没福气！别看我们的凯凯笑星年龄不大，却已是“三出茅庐”了。 读小学的时候，老师让他背《静夜思》。喊一次，不动；喊二次，不动；第三次刚喊了一个字，他就一下子从座位上“弹”了起来，随即，仰头望着天花板，一言不发。那神态，惹得我们哄堂大笑。老师不高兴了，说：“我叫你背《静夜思》！装什么傻？”“我马上就背。”他回答老师，头仍然望着天花板。我们一下子来了兴趣，个个都把耳朵打扫干净地听。没想到。他背的竟然是“床前明月光，疑是地上霜。公子和小姐，正在编筐筐。”老师生气了，罚他站到教室后面去。我们呢，自然是笑了个前仰后合。 凯凯不讲卫生，经常是衣着不整，头发呢，简直就是个乱鸡窝。平时，还动不动摆PS，扭着变态舞，同学们笑话他，喊他是“班花”。想不到的是，他不仅不生气，还笑嘻嘻地答应。嘿，真叫人“佩服”！一天，我们几个同学不知怎的谈到了谁最帅，他说：“远在天边，近在眼前啊！”惹得我们一脸的惊奇，异口同声地说：“你？”他一本正经的说：“怎么，你们没看见肥牛在天上飞吗？”笑得我们上气不接下气。 凯凯的笑话最多了。华华和佳佳表演节目得了奖，他凑过去说：“演的好，超得差，正好回家卖河沙。”猴子长跑得了第一名，他跟在人家后面唱：“东风吹，战鼓擂，几个家伙拼命追，粗气喘，大汗滴，嘿嘿，还是我们猴子得第一！”这话被在一旁的班主任听见了，说“嘿，我们班还有个小诗人呢！”你猜，凯凯是怎么回答的，他的回答是：“哇，老师，你今天好漂亮啊！” 凯凯是这样的让人快乐，当然是笑星了。 你想见他？好呀，到我们班上来！ 2、写物 “耐克” 四川彭山青龙初中二年级 罗泽华 一个月前的一天下午，我正忙着回家，突然，我听见了几声猫叫：“喵……喵……喵……”，叫声十分低沉，显得非常凄凉。我忍不住停下来，循着声音找了过去。 我看见它了，在一堆杂草旁边，蜷缩着，整个身子像一个蓬松的球。它显得很瘦弱，但一双黑黑的眼睛依然炯炯有神。它怎么在这里？是怎样来到这里的？我顾不得细想，把它抱回了家。 见我抱猫回家，问明原由之后，爸爸妈妈很高兴，他们正在为家里的老鼠猖獗犯愁呢！ 我们家里的耗子差不多是一个军团了，到了晚上，这里“吱吱吱吱”，那里“悉悉簌簌”，扰得人觉都睡不着。你要去打，它们总是躲在电视柜角落里，衣柜后面的缝隙里，怎么打得着？等你淘神费力地把家具搬开，它们早就不知道跑到哪里去了。等你泄气的躺下，“吱吱吱吱””悉悉簌簌”又开始了，好象在示威，在嘲笑：“来啊，来打我啊，睡什么觉啊？你想打我，你打得着我吗？”真叫人无可奈何。 这下好了，我家有猫了！ 这猫还真争气。它在我家修养了两天，就成了一只雄赳赳气昂昂的战将了。很快，5只耗子成了它的美食。我们的家里一下子清净了。 爸爸妈妈奖励它，给它买来了小鱼，我呢，给他建了一座漂亮的小房子。一天，我们一家聚在一起，商量着给他取一个好听的名字，我说：“就叫它‘耐克’吧！”妈妈说：“什么‘耐克’？”我说：“‘耐克’Like是英语，喜欢的意思。”爸爸妈妈依了我。 就这样，小“耐克”成了我们家庭的一员，我最喜欢“耐克”了，每天回家，都要到它的小屋前，和它说说话。 可是，不幸的事情发生了，前天，我回到家里的时候，“耐克”不见了，直到今天，都没有见到它的影子。 我的“耐克”哪里去了呢？被坏人抱走了么？是它自己迷路了么？也许，是它寻觅自己的亲人去了吧！我相信是后者，希望是后者。 我的小“耐克”，我祝福你早日和亲人团聚，祝你幸福！ “耐克”，我的好“耐克”，我会久久的想念你！ 3、写事 校园生活 四川彭山青龙初中三年级 王 瑶 交作业 人影不停地晃动，声音此起彼伏。“快交周记本！”“喂，收英语练习册了！”我刚交了周记，又拿起英语练习册向科代表跑去了。回到方位，还没有坐下，数学可代表又吼起来了：“数学作业，数学作业！”一翻书包，糟糕，没做！急得我拉着冬瓜的手：“冬瓜，冬瓜，快，拉我一把……”冬瓜急的直摆手，指着本子让我看。我看清了，本子是写的是：重做，每个单词抄10遍！ 总算把作业应付过去了，连忙拿出了《英语》，刚翻到单词要背，同桌的指头就戳了过来：“憨憨，你咋在复习英语？”“下午不是要考吗？”“下午是要考，上午呢？忘了上午了？”“喔。我想起来了……”放下《英语时》书，拿起了语文…… 考试 半期了，各种考试像黄河泛滥一样汹涌而来，可贪玩的我们丝毫没有做好“抗洪”的准备，好在老师“通情达理”，给我们一节课“临时抱佛脚”，哎呦，我的老师，谢谢了！连忙拿起书，翻这，翻那……同学们好专心啊，要是天天如此多好！可惜呀……哎呀，这时了还说什么可惜呀，还是抓紧这点宝贵的时间吧…… 考试还是来了，开头的两道题还好做，可后面的就难了，害得我抓耳挠腮，冥思苦想，唉，唉，题啊，题啊，我们干吗要像敌人一样呢？ 钟声响了，唉，下一次吧！ 上课 下午第一节课，精神特别的不好。这不，老师才刚刚讲了几分钟，我的哈欠就来了，也不知道是怎么回事，昨晚明明是睡好了的嘛。 我不想睡觉，我不能睡觉，可是上下眼皮就像是强磁铁，一下子吸得来紧紧地粘在一堆了。使劲睁开，一下子又粘拢了。刚一松懈，脑袋就直往下沉。要不得，在上课呢？我摆了摆头，睁大了眼睛。一看同学们，一个个都“同是天下沦落人”！ 怎么办，怎么办？记笔记吧，用记笔记来赶走瞌睡。于是，我翻开了本子，拿起了笔。可是，我脑袋昏昏沉沉的，听得迷迷糊糊的，我在本子上胡乱地划着，自己也不知道记了些什么…… 唉，这鬼天气！ 课外活动 天气太热，课外活动也格外单调。同学们三五个围在一起，躲在树阴下，谁都懒的动弹。突然，女生堆里传来了尖叫声，随即四散而逃。我拦住一个，问：“什么事？”“蛇……”她扔下一个字，跑了。 我一扭头，果然，一个男同学手里，正拿着一条活生生的蛇，那蛇的身体，正在不停地扭动着……哇，真是太可怕了。 我看见白老师在不远处，指着那个男生，对着白老师大声喊：“老师，你看——” 白老师跑过来了，但他很快站住了，只远远地指着那个男生喊：“扔了，快，危险！”我心里暗想，原来，堂堂男子汉白老师也怕蛇！ 那个男生笑了，说：“白老师，假的。”顺手把蛇扔到了地上。见蛇半天没动弹，我们围了上去，果然！ 随即，是一阵笑声。 我觉得，校园生活有点像柠檬草，酸，涩，也有点甜。 四、想象作文地 狱 奇 遇 记三年级三班 张波 一个没有月光的夜晚，我迷迷糊糊走在一条阴森森的路上。我的脚下轻飘飘的，飘着，飘着，飘过了一座形状古怪的桥。这桥怎么这么古怪呢？我忍不住回头看了它一眼。没想到这一看，吓了我一大跳，这桥上面写了三个大字：“奈河桥。”我听奶奶说过，人死了才过“奈何桥”，我怎么也过了“奈何桥”？这时，对面来了两个人，一个长着牛头，一个长着马首。我惊恐地问：“你们是谁？”它们笑着说：“过了奈何桥，还不知道我们是谁！”我说：“你们是牛头马面？你们要干什么？别过来……”我的话还没说完，他们已把我抓住了，说：“阎王让我们抓你，别废话，快走。”我被牛头马面带到了阎王殿。 我看见了阎王，他比我想像中的还要可怕。他凶神恶煞地对我说：“你就是那个混世小孩张波吗？”“是啊，我是张波，但不是混世小孩。”我辩护道。 “哼，你还不承认，判官，拿记事簿来！”记事簿拿来了，阎王翻开一页念到：“2月2日，上课不专心听讲；3月3日，不交作业，4月4日，玩电子游戏一个通宵……” 我很吃惊：“天啊！我的所作所为，他们怎么搞得这么清楚？”阎王见了我的模样说：“没话说了吧！你这样不珍惜寿命，当混世虫，何必留在阳间呢？来人，把她拖去下油锅。”我求饶道：“阎王饶命，我再也不敢了，我会改的。放了我吧！”阎王说：“以前那么多机会为什么不改？你改得了吗？”“改得了，这一次一定改得了。”我连忙说。 “好，那就再给你一次机会。”阎王说：“不过，我要告诉你，你的每天表现，我这里都记载着，你可不要说改不改啊！”“我一定会改的，一定会的。”我一边说一边逃回了“奈何桥”这边。 我记住了阎王说的我在阳间的每一天的表现，他那里都有记载的话，我对自己说：“做个好孩
试卷教育局出的，试题不会知道的。谁都不知道，要看市里面的老师出题，你还是用心学习比较好我们这里是 忆童年 写亲情方面的抒情记叙文
为什么纸不掉下来？有一次，科学课下课的时候，我听见几个同学在议论纷纷，我凑上前去，仔细一听，原来，大家都在讨论一个问题：一个空杯子装满水，盖上一张纸，再将杯子倒过来，纸会不会掉、水会流出来吗？能有这么神奇的事发生吗？我决定亲自做一个实验。于是放学回家后，我迫不及待找来一个纸杯，一张大小合适的白纸，接着将杯子装满了水，将纸盖在杯上。此时我有点紧张，担心实验不成功。为了知道结果，我深深地吸了一口气，拿起杯子轻轻地倒过来。哇噻！果真如此，纸紧紧地“贴”在杯子口上，水也一滴不漏，太神奇了！可这又是为什么呢？为了揭开谜底，我便上网查找有关的资料。原来是因为装满水的杯中空气压力被堵住，压力就自然很小。加上水的表面有胀力，才能使杯中的水稳稳地被“固定”住，纸也能吸在上面。我恍然大悟，原来是空气和纸托住了杯子中的水！［五年级作文］科技小论文月食是由月月食是一种特殊的天文现象，指当月球运行至地球的暗影部门时，在月球和地球之间的地区会由于太阳光被地球所遮闭，就望到月球缺了一块。也就是说，此时的太阳、地球、月球刚好或几乎在统一条直线地球在太阳与月球之间，因此从太阳照射到月球的光线，会被地球所掩盖。以地球而言，当月食发生的时候，太阳和月球的方向会相差180度。古代月食记实有时可用来推定历史事件的年代。中国古代迷信的说法又鸣做天狗吃月亮。月食可分为月偏食、月全食及半影月食三种。当月球整个都入进本影时，就会发生月全食；但假如只是一部门入进本影时，则只会发生月偏食。月全食和月偏食都是本影月食。作文600字作文在月全食时，月球并不是完全望不见的，这是由於太阳光在通过地球的淡薄大气层时受到折射入进本影，投射到月面上，令到月面呈红铜色。视乎月球经由本影的路径及当时地球的大气情况，光度在不同的月全食会有所不同。有时月球并不会入进本影而只入进半影，这就称为半影月食。在半影月食发生期间，月亮将略为转暗，但它的边沿并不会被地球的影子所阻挡。不外望月全食必需在晚上望，而且观望月食的机率迸食的机率少的多。关于月食，还有一个故事：16世纪初，哥伦布航海到了南美洲的牙买加，与当地的土着人发生了冲突。哥伦布和他的水手被困在一个墙角，断粮断水，情况十分危急。懂点天文知识的哥伦布知道这天晚上要发生月全食，就向土着人大喊，“再不拿食品来，就不给您们月光！”到了晚上，哥伦布的话应验了，果然没有了月光。土着人见状诚惶诚恐，赶紧和哥伦布化干戈为玉帛。科技小论文随着能源的减少，人们逐渐变得重视节能了。在我还上小学时老师就教育我们节约能源，是为了让我们人类能在地球上永远的生活下去。在现实生活中，还有大多数人仍不清楚怎样节能，让节能只是一个说的到，却不能完全做的到的事情，往往还因缺乏科学的节约常识和“小窍门”，造成一些不必要的浪费。现在我来就家庭节电方面给大家介绍几个小窍门。一、电饭煲节电小窍门现在市面上的电饭煲分为两种：一种是机械电饭煲，另外一种是电脑电饭煲。使用机械电饭煲时，电饭煲上盖一条毛巾，注意不要遮住出气孔，这样可以减少热量损失。当米汤沸腾后，将按键抬起利用电热盘的余热将米汤蒸干，再摁下按键，焖15分钟即可食用。电饭煲用完后，一定要拔下电源插头，不然电饭煲内温度下降到70度以下时，会自动通电，这样既费电又会缩短使用寿命。尽量选择功率大的电饭煲，因为煮同量的米饭，700瓦的电饭煲比500瓦的电饭煲要省时间。电脑电饭煲一般功率较大，在800瓦左右，从而节能。二、电视机节电小窍门电视机节能可以通过如下几条途径：首先控制好对比度和亮度。一般彩色电视机最亮与最暗时的功耗能相差3O瓦至50瓦，建议室内开一盏低瓦数的日光灯，把电视对比度和亮度调到中间为最佳。其次控制音量，音量大，功耗高。另外，一个省电的办法是观看影碟时，最好在AV状态下。因为在AV状态下，信号是直接接入的，减少了电视高频头工作，耗电自然就减少了。其次是看完电视后，不能用遥控器关机，要关掉电视机上的电源。因为遥控关机后，电视机仍处在整机待用状态，还在用电。一般情况下，待机10小时，相当于消耗半度电。最后是给电视机加防尘罩。这样可防止电视机吸进灰尘，灰尘多了增加电耗。三、电脑节电小窍门不用电脑时尽量把电源开关给关掉，这样可以降低耗电量。不用电脑的时候要用一个套子把它套住，不要让灰尘进入电脑，降低用电量，还要不定期的把主机内部的主板和其他部件拿出来清洗，这样才可以更好的降低用电！！能尽量不用电脑的时候就不要用电脑。节能是很重要的，人人都应该用这些小窍门，不应该因嫌麻烦就不去做这些事。这些事对谁都有极大的好处的，仅仅需要举手之劳而已。有关部门也应该加大节能力度，多多宣传。让人类都来节约这并不是永远都有的能源吧！也让我们每个人为造福我们的后代而加油、努力吧！科技小论文范文——无污苍蝇拍夏秋天经常有苍蝇爬到食物和碗筷上，严重影响饮食卫生，吃了这些带细菌的食物，人们常常会生病。为了消灭苍蝇，经常用苍蝇拍打苍蝇，这样家里的苍蝇逐渐减少。但是打过一阵苍蝇后，在桌上和白墙壁上到处留下许多苍蝇内脏的污点，非常难看，也不卫生。去年我们参加科技活动小组，辅导老师组织我们开展小发明活动，鼓励我们动脑筋找小发明课题，想办法解决课题中的难题。我们将上述问题带到科技小组一起讨论，在老师的引导下，我们你一言，我一语讨论解决这个难题的方案。我们想了几种办法，最后大家一致认为在苍蝇拍加几排小点，点的高度比苍蝇的大小矮一点。这样打苍蝇时，苍蝇被打死了，而桌面和墙壁上不会留下讨厌的污点，效果很好，受到老师和家长的称赞。这项发明将普通苍蝇拍加几排小点（用万能胶滴胶），就解决了普通苍蝇拍拍打苍蝇时留下污点的难题，这是这项发明的创造性贡献。由于它打苍蝇不留污点，所以我们给这项发明命名为“无污苍蝇拍”，我们建议塑料厂今后生产这种无污苍蝇拍
题目：科学小论文
科技改变生活，时代在渐渐发生变化，科学在不断进步。科技的发展，给我们的生活带来了许多便利，我们的生活与科技息息相关。
在以前，农民伯伯每到春天，就要辛辛苦苦的进行插种，播种等的工作，夏天又要杀虫，秋天又要忙着收获，跟着种其他农作物。他们要一年四季，这样每天重复着同样的顺序，天天佝偻着背下地干活，经常弄得自己筋疲力尽。可有时候天气会喜怒无常，下几场大雨或连续几天的干旱，再加上某些地方环境的污染严重，害虫随处可见，这些足以让农作物无法生长，农民辛苦的劳动得来的却是落得一场空。
现在，随着科技的发展，带来了一种新的培育方式—太空育种。它是搭载科学实验的一种，是将农作物种子搭载于返回式地面卫星，借助太空超真空微重力及宇宙射线等地面不可模拟的环境变化，使种子发生变异，经过地面多代选育获得稳定的遗传性状，从而培育出新的农业品种来。
自1987年以来，我国科学工作者利用返回式地面卫星，先后进行了多种植物的空间搭载实验，培育出了一系列高产、优质、多抗的水稻、小麦、番茄、青椒、芝麻等作物的新品种。太空育种已得到一定程度的应用，从太空的带来的果实，它的重量和外形都发生了变化，比在陆地上培育的果实要大得多，好吃得多。
科学之门已经打开，科技带给我们的便利随处可见，以后科技的发展，还需要我们来探索，来创造。让我们插上科学的翅膀，在科学世界里自由地遨游，发现并探索我们生活中的科学，为未来的科技贡献我们的一份力量。
在很长一段时间,在天文学中占统治地位的观点认为,广袤的星际空间是一片死寂,由于超低温、超真空和强辐射的离解作用,星际空间很难形成分子,更不要说是有机大分子了.但是,1968年,美国天文学家汤斯等利用6米的射电望远镜却在人马座B2星云中发现了氨分子和水分子.翌年,美国另一个天文小组又采用43米射电望远镜在人马座A和人马座B2星云中进一步发现了由三种元素、四个原子组成的有机分子——甲醛（H2CO）.这使人们大吃一惊,原来星际空间有复杂分子,而且有有机分子!许多天文学家纷纷投入对星际分子的研究,到目前为止,科学家已用射电望远镜发现了50多种星际分子,其中包含有6种化学元素——氢、碳、氧、氮、硫和硅,最复杂的分子是包含11个原子的HC9N.有趣的是,1974年在人马座B2星云中央发现了大量乙醇分子(乙醇也即酒精),其含量有8000亿亿亿升,比地球上有史以来人们酿成的酒要多得多.人们不禁要问,天上的酿酒人是谁?这些星际有机分子是如何形成的呢?还有人预言,星际空间存在着更复杂的有机分子,比如氨基酸,但是到现在还没有拿到确切的证据.星际有机分子的发现,被誉为60年代天文学的四大发现之一.如果说射电望远镜为我们提供了地球外化学进化的间接证据的话,那知来自天外的使者——陨石就我们送来了地球外存在有机物的直接证据.但是太阳系（除地球）中还没有发现任何生命迹象,可以肯定的是,宇宙中肯定还存在新的生命!
每到星期天，我总要完成妈妈交给我的擦鞋任务。告诉你，这可是我一星期零花钱的来源哦!拿到沾满灰尘的皮鞋后，我先把鞋面的灰尘擦掉，然后涂上鞋油，仔仔细细地擦一擦，皮鞋就会变得又亮又好看了。可这是为什么呢? 我找了同样牌子同样款式的新旧两双皮鞋进行对比观察。我先用手触摸两双皮鞋的鞋面，发现新皮鞋的表面比旧皮鞋的表面光滑得多。旧皮鞋涂上鞋油，仔细擦过后，虽然亮了许多，但仍无法与新皮鞋相比。皮鞋的亮度是否与鞋面的光滑程度有关呢? 我取来一双没擦过的旧皮鞋，在放大镜下鞋面显得凹凸不平的。然后，我再在皮鞋上圈出两块表面都比较粗造的A区和B区，A区涂上鞋油并仔细擦拭，B区不涂鞋油作空白对照。我发现A区擦拭后，表面明显变光滑了许多，而且放在阳光下也比B区有光泽。为什么两者会产生这样的差别呢? 我想到在自然课上老师曾经讲过：影剧院墙壁的表面是凹凸不平的，这样可以使声音大部分被吸收掉，让观众不受回声的干扰。同样道理，光线照到任何物体的表面都会产生反射，假如这个平面是高低不平的，光线就会向四面八方散射掉；假如这个平面是光滑的，那么我们就可以在一定的方向上看到反射光。 皮鞋的表面原来就不是绝对的光滑，如果是旧皮鞋，它的表面当然更加的不平，这样它就不能使光线在一定的方向上产生反射，所以看上去没有什么光泽。而鞋油中有一些小颗粒，擦鞋的时候这些小颗粒正好可以填入皮鞋表面的凹坑中。如果再用布擦一擦，让鞋油涂得更均匀些，就会使皮鞋的表面变得光滑、平整，反射光线的能力也加强了。 通过实验，我终于知道了皮鞋越擦越亮的秘密啦! 1.彩色投影小磁针 磁针就是指南针。指南针是我国四大发明之一。在当前的物理教学中，小小磁针可以用来判断磁场的方向。可是市场上出售的或上级部门调查拨的磁针用起来很不方便。老师在做磁场方向演示实验时，同学们在下面看不清楚，教师只好端着仪器走下来给同学们一个一个地看，很费时间。怎么办呢？经过同学们千方百计地想办法，终于制成了简易彩色投影小磁针，它既可以当指南针用，又可以在投影器上投影，使全班同学都能看见磁场的方向，为教学实验提供了极大的方便。、 简易的投影小磁针结构简单材料也很普通。它由子母扣钢针、大头针、有机玻璃条和透明投影胶片材料制成。制作方法是：将两根钢针分别穿两根钢针上，两根钢针要注意平衡。再将透明胶片剪成尖形长片，用502胶粘住在钢针上，一端一片，要注意对称，然后分别涂上红绿两种颜色。这样磁针上部就完成了。将有机玻璃条锯成块形，再磨成圆形为磁针的底座，烫在圆形有机玻璃中间。注意大头针要和底座垂直。小子母扣内凹处作为旋转的轴承支孔。把轴承支套在针尖上，这样磁针就会在针尖上旋转。最后一片是将小磁针磁化，方法是将条形磁铁S极从磁针中间部位向绿方抹过，这一方就是N极。这样，小磁针就磁化好了。 把自制的小磁针，放在投影器上，可以一目了然地从幕布上看到磁场各点的方向。 2.为什么衣服能使人暖和? 首先应该问问自己：真是衣服使人暖和吗？ 要知道实际上不是皮袄使人暖和，恰恰相反，是人使皮袄暖和。难道不是这样吗？你知道皮袄不是炉子。“什么？”你会问。“那难道人是炉子吗？”一点不错，人是炉子！我们已经知道我们吃下去的食物——这就是劈柴，它在我们的身体里燃烧。这时候什么火花也没有看见，我们说它在燃烧，只是因为我们身体里感觉到热。 这个热需要保护。为了不让屋子里的热散到街上去，我们筑了厚厚的墙壁，冬天还安上双重的窗，还在门上包上毡。我们穿衣服也正是同样的原因。不让我们身体的热量散失到室内的空气里或者到街上去，我们使衣服暖和，它把我们的热量保持在我们身体周圄。我们的衣服当然也要向外散热，可是比我们身体散热慢得多。 3.[科技小论文]节省能源的路灯 中华民族是一个有着勤俭质朴的优良传统的民族，中国人民自古以来就保持着这一种良好的作风。无论是在生产劳动还是在日常生活中，也都体现出这个特点，总要力图以最节省的方式，尽可能办好每件事情。正是由于这一良好思想观念，我们才懂得去节省能源。能源问题对我国这样的人口大国有着非同寻常的意义，随着经济的发展，资源的大规模开发，能源紧缺问题就显得更加突出，在很大程度上影响我国的现代化建设。我们国家到目前为止仍旧提倡节俭的作风，在奥林匹克场馆的重大建设中，国家就是从实际需要考虑，提出了“节俭办奥运”的口号；在今年的55周年国庆相继提出“节俭办国庆”的口号。我们国家就是从顾全大局的角度出发，从节省能源方面做到勤俭的作风的。节省能源可以减少开支，促进经济的增长，还可以保护自然环境，也是走“可持续发展”道路的先决条件，更是为了我们的子孙后代。 在城市的夜晚，公路的两旁都亮着密集而又整齐的路灯，看上去宛如一条巨龙腾空，虽然这是一道亮丽的风景，但是许多时候这些路灯的光亮都白白浪费了，因为很大一部分时间里，路上是空荡荡的，这种情况尤其出现在经济、交通不是很发达的地区。电力资源的极大浪费，给这些地区的经济带来负面影响，无一利而有百害。那么，有没有既方便晚上行人和车辆通行，又节省能源的自动控制装置呢？ 节省能源，实际上就是尽可能减少能源损失。偏僻的公路上，交通流量极少，长时间的打开路灯，不管是有车辆，还是没有车辆，有行人，还是没有行人，都造成能源的极大的浪费。即使有车辆经过，也不应该全线路灯都开亮，只应在车辆行驶的有效范围内打开路灯，否则那会造成多么巨大的损失！行人在路上走路也是如此，只应在行人走路的相应范围内打开路灯，满足照明的需要即可。这个问题可以类比现在常见的声控开关，只要有人在楼梯间走路，发出声音，声音产生的震动传递到声控开关，灯就会发亮，并且只在行人走路的范围内的灯亮了，而不是长期不灭的。从这里得到启示，当车辆和行人在公路上通过时，不就对路面产生了压强吗？要是有一种感应器能够在受到压强的作用下能自动控制开关，控制相应范围内的灯的亮和灭，这就达到了节省能源的目的。 那么这个感应器不能是通过声音产生的空气震动控制的，而是要通过车辆和行人对路面的冲击和压强而产生的路面震动控制，这两种震动是不同的，否则就会阴差阳错，说不定是动物的叫声，路以外的喧哗声就把灯亮了，同样达不到节省能源的目的。倘若车辆、行人发出的声音很小，灯不会亮呢？那么就形同虚设，毫不起作用。汽车的行驶、行人的走路，自然而然会对地面产生冲击和压强，使路面震动，这就可以利用路面的震动来控制路灯亮还是熄灭。假如有这样的一个装置：它可以安装在路灯的灯箱内，各个装置用一根金属棒与路面相连，当路面受到冲击和压强产生震动时，对应的路灯就会发光，哪里有车辆或行人，哪里的灯就会亮起来，震动停止，灯在一定时间限定内自动熄灭。这个装置就是利用冲击和压强产生的震动来控制路灯的，能够起到很好的节省能源的作用。当然，为了减少装置的安装数量，可以由这样的一个装置控制多盏路灯，装置与装置之间并联连接在一个电路中，也就是每隔一段路程安装一个，然后通过导线把装置与相应的路灯连接起来。我们不妨先把它命名为“震动感应器”。我们再来看一看“震动感应器”的工作原理：首先，金属棒就是用来感应路面上有无震动的。当汽车或行人在某一路段上经过，对路面施加压力的冲击，产生震动时，金属棒将震动传到“震动感应器”，“震动感应器”受到震动的刺激，命令由它控制的几盏路灯闭合开关发亮；车辆和行人继续经过下一路段，下个路段的“震动感应器”同样受到震动刺激也使对应的路灯发亮，依此类推。同时，车辆和行人经过以后的路段的“震动感应器”由于没有继续受到金属棒传给它的震动信息而断开开关，不再使相应路灯继续发光。但要求这种“震动感应器”灵敏度要高，而且还能够判别震动的来源。比如遇到特殊情况，遇到雷电天气或者工厂产生的高分贝声响使空气剧烈震动，也会经过金属棒传到“震动感应器”，“震动感应器”误以为震动是由路面传来的，使路灯发光。因此，我们要调用科学技术钻研出一龀绦蚧蛞桓鲂〔考�诶锩妫�埂罢鸲�杏ζ鳌被崤卸险鸲�锹访娲�吹模�故鞘艿娇掌�鸲�挠跋齑�吹摹? 好了，只要在有路灯的公路上安装这种“震动感应器”，就不需要大量的人力来控制供电了，一切工作就交给机器来自动控制吧。我们可以想象，随着汽车或行人在路面经过，路灯次第发光与熄灭的情景，熠熠夺目，应接不暇，不也是夜间一道独特而又亮丽的风景吗？在方便交通的同时，最大的好处就是大大的节省了能源。 这种“震动感应器”是为节省能源而设计，希望这种装置能够应用到实际中去，发挥巨大的作用。在我们发展经济的同时，千万不要忽视了保护能源的重要性，节省能源，走可持续发展之路，已经成为人类的共识。
楼上的什么东东？ 1.特殊的学校日 Today is school sports day. I am very excited. I like soccer. So I am watching the football match. It's great. Our team is winning. I am very happy. 今天是学校的运动会。
我感到非常兴奋。 我很喜欢足球。
因此，我在观看球赛。 这球赛超棒的。
我们的团队胜利了。 我很开心。
2.季节与天气 My favorite season is autumn. I think it very cool. It is not so hot. But winter is so cold. So I don't like winter. I like summer just so so. Because I can swim. Spring is a beautiful season. There are many flower and bird. 我最喜欢的季节是秋季。 我认为这非常凉爽。
它不是那么热。 但冬天又太寒冷。
因此，我不喜欢冬天。 我也喜欢夏天。
因为我可以游泳。 春天是一个美丽的季节。
有许多花和鸟。 3.农场 My uncle has a farm. It's very big. There are many animals. Let me have a look, there are sheep,goats,cows,ducks,chicken, and a dog. The dog's name is Tom. It's my friend. We often play together. I like uncle's farm. Because is beautiful and vast. 我叔叔有一个农场。
它非常大的。 还有很多动物。
让我看看， 有绵羊，山羊，奶牛，鸭，鸡， 和狗。 狗的名字是汤姆。
它是我的朋友。 我们经常在一起玩。
我喜欢叔叔的农场。 因为它很美丽和广阔。
4.假期 My summer vacation is ing. I will do many things. I'll finish my homework first. Then,My fried and I will go to Shanghai. We will shopping all day. I think it's very interesting. And I will make a birthday gift for my mom. It's her birthday soon. I like playing puter. So I will play puter games. It's the most interesting. I don't like having math class. I think it's the most boring. I will busy this vacation. 我的暑假即将到来。 我会做很多事情。
我会先完成我的作业。 之后，我和朋友将去上海。
我们将购物一整天。 我认为这会非常有趣。
我会为妈妈制作生日礼物。 不久就是她的生日。
我喜欢玩电脑。 因此，我会玩电脑游戏。
这是最有趣的。 我不喜欢上数学课。
我认为这是最无聊。 这个假期我会很忙。
五年级英语作文 The step of summer
Lightly, lightly, summer girl is ing to the world with slim and graceful step ……
The grass grows much greener than before. The flowers e out more beautiful than before. There are more leaves in the trees than before. Everything makes us more youthful.
Acpany the first cry of the cicada and the first shout of the frog …… The world is full of melody. All the bother is taken away by it.
自己再修改一下啊
Gradually, gradually, the air temperature turns higher and higher. The lotuses in the lakes e out happily. The dragonflies are busy laying eggs ……
Ah! Summer is really ing!
五年级英语作文一般是五句话
第一句介绍自己或别人
第二句就开始进入主题：如写一家人会干什么
第三第四句就写上面的内容的陈述
最后就结尾
对于青少年来说，学习如何交友是很重要的。
It's important for teenagers to learn how to make friends.
虽然雨下得正大，但是对于他来说，看来不跑完最后的200米是不可能的。
Although it is raining heavily, it looks that it's impossible for him not to finish the last 200 meters.
吃更多的蔬菜是有好处的。
It's good to eat more vegetables.
对于我们来说拥有充足的睡眠是重要的。
It's important for us to have enough sleep.
对于我们来说保持环境清洁是重要的。
It's important for us to keep the environment clean.
嘲笑残疾人是不礼貌的。
It's impolite to laugh at disabled people.
进行更多的锻炼对你的健康来说是有益的。
In 20 years,I think I will bee a successful am going to move to Beijing and work there.
I think Beijing is more beautiful than the other cities in I will have a happy will spend time with my hu *** and and my kids on course,we will go on vacation together, we also go to is a nice place.
And as a doctor,I will make people keep their I will have more friends in the new city.
In a work,I believe that I will improve my life in 20 years.
参考网站：es from the north of China. But she grows up in Tianjing. She's very beautiful. Her mom is very beautiful too. Her dad is very kind. She likes singing and swimming. Her mom likes listening to music. Her dad likes swimming.我有一个好朋友。
她的名字叫侯清清。她来自中国北方。
不过她是在天津长大的。她非常漂亮。
她妈妈也很美。她爸爸很和蔼。
她喜欢唱歌和游泳。她妈妈喜欢听音乐。
她爸爸喜欢游泳。Sometimes we go shopping. Usually we ride a bike and go to the cinema. This is fun.有时候我们会去购物。
我们常常骑自行车，看电影。这很有趣。
She doesn't have sisters or brothers, so in the morning we go to school together. I want to be a designer. She wants to be a policewoman.她没有兄弟姐妹，所以我们早上是一起去学校的。我想成为一名设计师。
她想成为一名警察。
草船借箭缩写
周瑜看到诸葛亮挺有才干，心里很嫉妒。
周瑜用即将水上交战而军中缺箭的借口，马上命令诸葛亮十天之内造十万支箭，可是诸葛亮却说只要三天就可以做好，还立下了军令状。周瑜认为三天之内是不可能造好十万支箭的，于是命令鲁肃去探听。
诸葛亮见了鲁肃，便叫鲁肃要二十条船，要一千个草把子，鲁肃答应了。到了第三天的四更时，诸葛亮请鲁肃去取箭。这时大雾漫天，诸葛亮的船向北岸驶去，船头朝西，船尾朝东，一字排开，靠近曹军水寨。曹操以为有很多敌军进攻，便调来很多弓弩手朝船上射击。这时候，诸葛亮下令船头朝东，船尾朝西，一字排开。天渐渐亮了雾还没有散，诸葛亮的船驶去南岸，曹军知道上当了，要追也来不及了。终于靠岸了，周瑜来搬箭，发现每条船有五六千支箭，一共有十万多支箭。
鲁肃把借箭的事告诉周瑜，周瑜长叹一声：“诸葛亮神机妙算，我真比不上他。”
dinner It's 12 o'clock now. I'm 'd like to eat some sweet food for like chocolate cake best. Chocolate cake is sweet and de also like potatoes, eggplant,bananas and watermelons. They are tasty and are all my favourite food . ' s do the housework There are 4 people in my family,my father, my mother,my sister and the weekend,my father often waters the flowers and sweeps t he mum often cooks the meals and washes our sister often cleans her often empty the trash. We are ha ppy at home. day Today is Sunday. The weather report says It is sunny in the morning,but it ' s a little rainy in the afternoon. SoI get up at 6:30 in the have some beef noodles and an egg for breakfast. I go out for shopping at 8:00. The shop is near . I go there on foot. Many people are in the shop. I buy a pencil . At 12:00 I go home for lunch. I have some vegetable and meat for lunch. I read a book in the afternoon because of the rain. I eat some noodles and fruit for supper. After supper, I do my homework. then I watch TV at 8. Later, I play puter games. I go to bed at 9. I have a happy day. friend ' s favorite season My friend is Chen favorite season is summer. It is hot in summer. He can wear a shirt and shorts. In summer, we have summer vacation. On vacation, we don't go to school. We can play basketball in the morning. In summer vacation, He can go swimming every day. Sometimes, he can climb the mountains with his parents. They usually go hiking. Sometimes they go to the beach. It is so funny!This is his favorite season-summer. How about yours? ' s birthday Today is June 1 st , It is Mike ' s birthday. He is so happy. Because he can wear his new T-shirt and have a picnic in the park. In park, we open a big box and say "Happy birthday to you, is for you " "Oh, It ' s a big birthday you ! "” Let ' s share it. ” Then we play games together. At 4 o' go home. We have a happy day today! busy family It is Saturday family are busy at home..Look, what are we doing now? My father is sweeping the mother is paintng in the sisiter is doing the dishes in the kitchen. And I' m emptying the trash. I ' m so helpful now! Look,there are so many anlmals in the can 3 monkeys,a mother monkey and 2 baby mother monkey is swinging and the baby monkeys are standing in the can see a big elephant,it is can also see a rabbit and o rabbit is eating a tigers are you see any birds ? Yes,they are flying in the sky. I love all anlmals! field trip（ 同 3） family（ 略 ） summer holiday My summer holiday is do I want to do,do you know?Now , let me tell you. First,I am going to the nature park with my friends and have a picnic there. Then , I ' m going shopping with my mother,because I like going shopping I' m going to buy some clothes for me because some of my clothes are old.. Next, I am going to do my homework and play puter games. In the afternoon,I am going to play sports with my friends This is my happy summer holiday. I can ' t wait! the housework（ 同 7） bedroom I have a bedroom .It is not big , but it is nice .There is a bed in my bedroom . A yellow dog is on the bed .Every night,I sleep with it . Next to the bed, there is a desk. A bear lamp is on the desk .I like the bear lamp. I like to do homework under the lamp every evening. I have a new puter in my bedroom .It is my best friend . Because I study on it, play on it . There are also some beautiful pictures on the wall. in my home town In spring, the weather is warm and windy. Sometimes it is trees get green and flowers e out.. Animals get up. Birds sing in the trees everyday. They are very happy. We wear jackets and can fly kites or go hiking in spring. Ilike spring very much.。
My weekend There are o days on the weekend, Saturday and Sunday. On Saturday, I often go to my dancing class in the morning and do my homework in the afternoon, and I often help my mother do some cleaning. On Sunday, I always visit my grandparents in the morning and do some reading in the afternoon. After dinner, I often watch TV with my parents. At that time, we can talk with each other and say something happily. We often have a good time. My Seasons We have four seasons in a year. I can do many interesting things in each season. In spring, the weather is cool and wind, I can fly kites when it's wind. And I can go hiking with my family when it's sunny and cool. I like hiking. Summer is hot in the north of China, but it's not long time. I often go swimming. It can make me healthy and strong. I can also wear my beautiful dresses. Fall is a season with harvest. And I can eat delicious fruits in this season. I can watch the leaves fall. Winter es, it's often snowy in winter in my hometown. When it snows, everything is white. We can play with snow and make a snowman, skate and ski. And winter is my favourite season, because of the Spring Festival. I love seasons. I love the nature. My Birthday Party Every year, when it's birthday, my parents hold a party for me. They invite my friend to e to my house to celebrate my birthday. I can get many beautiful gifts every year. In my party, we can do many things: 1. Light the candles. 2. Sing a “Happy Birthday” song. 3. Make a wish. 4. Blow out the candles. 5. Cut off the cake. 6. Eat the cake. 7. Open the presents. 8. Sing and dance. 9. Watch videos or play other games. 10. Say goodbye with each other. That's my birthday party, is it interesting? My family There are five people in my family. They are my grandma, grandpa, dad, mom and I. Look! Grandma is watching TV. Grandpa is reading a book. Dad is writing an e-mail. Mom is cooking dinner. I am doing my homework. I love my family! A Field Trip It is a nice day. Our class will have a field trip today. The clas *** ates are very excited. Look! Here we are. There're a lot of activities to do. Amy is watching insects. Peter is collecting leaves. They want to write a report. Mandy is catching butterflies in the woods. Tim and Bob are playing chess. Some of the clas *** ates are having a picnic. There is a lot of delicious food to eat. Oh, who's that over there? It's Miss White. What is she doing? She is taking photos. We had a very good time. I'll never fet this field trip.。
fatherI have a good father. I like him very father is a policeman. He is tall and strong. He looks very cool in the black police uniform. He works in the police station and he is very busy every day. He likes helping people. So he often goes everywhere by his motor cycle. When he sees the people in the trouble, he will try his best to help the people. He is a good policeman. And many people like him very much, too. My father likes reading books very much. Because he thinks: A good book is a good friend. do you have a good father, too? pet is a cat,It's very like her very much,I often feed her when she is hungry,She eats fish,I feed her with not only fish but also milk and other delicious food I like to eat,they are all play with her when I'm free,she likes climbing and can jump down from high wall without any wash her once a week to keep her when I'm not happy she lie down by me and apany English teacher appears very beautiful and she looks about 40 years has a English teacher is very strict with us,and sometimes,she is very friendly and kind to is also the April Fools' Day,she said to us,"you are going to have a holiday this afternoon".Many students thought it students dare not talk,because she is very are afraid that we cannot pass the exam,because the teacher will criticise us if we don't doesn't give us too much homework,and she doesn't give us too much like our Engllish it is hot is it!There is no wind and most of us stay at drink cool water,eat fruits and so other people are swimming now,they must be very cool!What about you? was was really very cold. I felt very cold,so I stayed at home to do my homework. The snow was so thick that some chidren were making a snowman. The snowman was fat and it was also very cute!。
英语作文在很多学生的印象中是很难的，下面是我给大家精心挑选的，希望大家喜欢!供你参考和阅读! 五年级英语作文篇1 May Day has been finished, the teacher ask me: "such a long holiday, do you have any harvest?" Oh, I just think, such a long holiday, what I got? I say I don't know to the teacher, the teacher is very tired, because the teacher asked me a lot of problems I always said I don't know, the teacher thought that I would not like to municate with her, don't want to say, in fact she was wrong, I really didn't get anything, there is no harvest, at least I think so. The teacher asked me to write a position, let me write the May Day. It can be difficult to me, I a long vacation, the same Sunday, boring through. In order to plete the tasks given by our teacher, I try to recall, think of a harvest in the May Day holiday. Harvest should be done from always get!!!! The May Day liuxue86 and I do what? Doing homework, playing games. A May Day I so monotonous had done, and what can harvest it? In order to plete the task, say what I have to say two harvest. Even though it may be of garbage again. I wrote in the essay "a May Day to do a lot of homework, I know a lot of questions, lays the foundation for an examination." Said a pile of meaningless words. When I finished writing the position, and I suddenly woke up, I can't harvest is so? Harvesting can always find in done. Think of this, and I think may do one more thing - to play games. After I grew up to the big game, in the five one playing games, what do I get in? I finished the game has been played bored, also can have what? "Why don't you always play games, go outing, wanted to take you out to play, you don't go." My mother said to me. Right! It is day and night playing games makes me so boring, feel life is meaningless, there's nothing to do, no pleasure of life. Why my extra-curricular life is too monotonous. Games let I can't find my harvest in a holiday. Right! This is what I May 1 to play games. Really do everything there will always be it the meaning of value, is only a question of how much, can't be none. What we should think about what we have, and what you need, to enrich our life. 五年级英语作文篇2 Remember grandpa as a child I have ever seen, *** oking a cigarette dangling from his old man's mouth are often, *** oke came with the match lighted, suction, and exhaled *** oke slowly from his mouth spit it out, but from two nostrils suck back, I'll e in and out, puffing away, I read a very funny, in the end, bursting out from his mouth, and thick *** oke in the air filled with a pungent spicy immediately. My grandfather was still coughing. He had just finished one and then he lit another. I was standing beside me. At that moment, I couldn't help but cry, "grandpa, don't breathe. Don't breathe." He *** iled happily, and his teeth were unintentionally exposed, and he was said to have been *** oking for decades. Later, when I was in first grade, grandpa finally had died of lung cancer, home and family was very sad, they know is cigarette harm grandpa, grandpa if her quit *** oking habits, early maybe still healthy alive again. Maybe it's the reason why cigarettes are so bad, and dad never *** okes. It's no wonder that even the ash tray grandpa left didn't know when it was gone. If a person sucks 10 to 20 cigarettes a day, they are 14 times more likely to die of lung, throat, mouth, mouth, and nasopharyngeal cancer than non- *** okers, according to authorities. Smoking is harmful not only to yourself, but also harmful to the people around the same, because the *** oke contains a large number of ", the ancient dong 10 kinds of harmful substances, such as once in the lungs as its harm of *** oking. In order to make people aware of the dangers caused by a variety of *** oking, governments are spare no effort to promote " *** oking is harmful to health", the regulation of our country have bans on tobacco advertising, the United Nations has special formulated the May 31 of each year for the "world no tobacco day". The purpose is to create a pure and fresh, environmental protection, green of "global village", make the living environment of mankind more healthy and more beautiful. I thought: I am a young pioneers, I have a duty, have a responsibility to promote the importance of *** oking cessation, let each side of the relatives, friends, clas *** ates stay away from cigarettes and refused to *** oke, let our guangzhou also bee a " *** oke-free city" at an early date. 五年级英语作文篇3 When the summer vacation, Mom and Dad took me to the Shaolin Temple, where I saw the scenery I have not seen before: monks, Tallinn, sightseeing cars, Shaolin monks, main hall, King Hall, Tripitaka, cable car A lot of monk's statue. Shaolin Temple in Zhengzhou Dengfeng Songshan, sitting sightseeing car, we soon came to the Shaolin Temple, we first went to Tallinn, here is the monk's grave. Towers are also different levels, the highest tower only seven layers. And then we take the cable car, because the cable car is essential to Shaolin a play project. Sit on the cable car to the top of the mountain to watch the beautiful scenery of Shaolin Temple is a very fortable thing. Shaolin Temple scenery I have countless, and no wonder Shaolin Temple is famous all over the world! I like the Shaolin Temple because it is a beautiful scenic spot for our country.
楼上的什么东东？
1.特殊的学校日
Today is school sports day.
I am very excited.
I like soccer.
So I am watching the football match.
It's great.
Our team is winning.
I am very happy.
今天是学校的运动会。
我感到非常兴奋。
我很喜欢足球。
因此，我在观看球赛。
这球赛超棒的。
我们的团队胜利了。
我很开心。
2.季节与天气
My favorite season is autumn.
I think it very cool.
It is not so hot.
But winter is so cold.
So I don't like winter.
I like summer just so so.
Because I can swim.
Spring is a beautiful season.
There are many flower and bird.
我最喜欢的季节是秋季。
我认为这非常凉爽。
它不是那么热。
但冬天又太寒冷。
因此，我不喜欢冬天。
我也喜欢夏天。
因为我可以游泳。
春天是一个美丽的季节。
有许多花和鸟。
3.农场
My uncle has a farm.
It's very big.
There are many animals.
Let me have a look,
there are sheep,goats,cows,ducks,chicken,
and a dog.
The dog's name is Tom.
It's my friend.
We often play together.
I like uncle's farm.
Because is beautiful and vast.
我叔叔有一个农场。
它非常大的。
还有很多动物。
让我看看，
有绵羊，山羊，奶牛，鸭，鸡，
和狗。
狗的名字是汤姆。
它是我的朋友。
我们经常在一起玩。
我喜欢叔叔的农场。
因为它很美丽和广阔。
4.假期
My summer vacation is ing.
I will do many things.
I'll finish my homework first.
Then,My fried and I will go to Shanghai.
We will shopping all day.
I think it's very interesting.
And I will make a birthday gift for my mom.
It's her birthday soon.
I like playing puter.
So I will play puter games.
It's the most interesting.
I don't like having math class.
I think it's the most boring.
I will busy this vacation.
我的暑假即将到来。
我会做很多事情。
我会先完成我的作业。
之后，我和朋友将去上海。
我们将购物一整天。
我认为这会非常有趣。
我会为妈妈制作生日礼物。
不久就是她的生日。
我喜欢玩电脑。
因此，我会玩电脑游戏。
这是最有趣的。
我不喜欢上数学课。
我认为这是最无聊。
这个假期我会很忙。
A year has four seasons. Every season has three months. The first season is spring. During that time we have warm weather and fine days. All plants e to life. Animals wake up from hibernation. It is time for farmers to get ready for their fields. The second season is summer. The weather is very hot and it often rains. People can go swimming and sightseeing. It is time for all things to grow up. The third season is autumn. The weather bees cooler and cooler. Leaves begin to fall to the ground. It is the harvest time for farmers. The fourth season is winter. The weather is very cold, and most of the plants die at that time. Sometimes it snows. People can enjoy skating and skiing. But winter doesn' t stay with us for a long time, for spring es again soon. 还可以吧
快啊
杰克是一个二十岁的年轻人。
两年前，当他中学毕业了，他发现在一家商店工作。
通常他工作一直到10 时在晚上。
他很累了他回家时。
经过简短地晚饭的时候他就上床睡觉了，很快就睡着了。
他的奶奶住在楼下的人满意他。
有一天，在回家的路上，他遇见了玛丽。
他们俩都快乐。
他叫那个女孩他的房子里，她同意了快乐。
他买了一些水果和饮料。
和他们谈论他们的学校，老师、同学和他们的未来。
他们谈了很长一段时间。
“看看你的手表，请，”姑娘说道，“现在几点钟了？” “对不起，我的手表出毛病了，”杰克说。
“你们的在哪里？” “我把它忘在家里了。
” 杰克想了一会儿，找到了解决的办法。
他开始邮票他的脚在地板上，“嘭”的一声。
砰！砰！” 声音唤醒了他的奶奶。
这位老妇人喊楼下，“十二点钟在晚上，杰克。
你为什么还跳搬到楼上去吗？”Jack is a enty-year-old young man. Two years ago, when he finished middle school, he found work in a shop. Usually he works until ten o'clock in the evening. He is very tired when he gets home. After a quick supper he goes to bed and soon falls asleep. His grandma who lives downstairs is satisfied with him. One day, on his way home, he met Mary. They were both happy. He asked the girl to his house, she agreed happily. He bought some fruit and drinks for her. And they talked about their school, teachers, clas *** ates and their future 。
They talked for a long time. “Have a look at your watch, please,” said the girl. “What time is it now?” “Sorry, something is wrong with my watch,” said Jack. “Where's yours?” “I left it at home.” Jack thought for a moment and found a way. He began to stamp his foot on the floor, “Bang! Bang! Bang!” The sound woke his grandma up. The old woman shouted downstairs, “It's elve o'clock in the night, Jack. Why are you still jumping upstairs?”
（没有两篇也没关系,...
Today i have a good time in zoo. There are many animals in the zoo. The tiger, elephant, bear,giraffe are all my friends. But we must obey the zoo rules. We shuold love these animals friends. We can't hurt them. We must not throw the trash to these animals. We must keep the zoo rules in mind.今天我有一个动物园的好时机。
动物园里有许多动物。
老虎，大象，熊，长颈鹿都是我的朋友。
但是，我们必须遵守动物园的规则。
我们shuold爱这些动物朋友。
我们不能伤害他们。
我们绝不能扔垃圾这些动物。
我们必须牢记动物园规则。
happy new yearnew year is all very happy,because we can eat many snack and we also eat jiaozi . is`t very are cleaning our rooms and send presents to our the first day of the Spring Festival, most of people get up early and say “happy new year.＂How happy I am. 新年快乐。
新的一年即将到来。
我们都非常高兴，因为我们可以吃很多零食，我们也吃饺子。
`吨是非常好的。
我们正在清理我们的房间，并送礼物给我们的父母。
在春节的第一天，大多数人早起，说“新年快乐。
“我是多么高兴。
.
A lady went to a hat shop to buy a hat. As she was very fussy, it took her a long time to pick on one. Already at the end of his patience the sale *** an was afraid that she might change her mind again so he tried to flatter her: ＂An excellent choice, madam. You look at least ten years younger with this hat on!＂ To his di *** ay, the lady took off her hat at once and said: ＂I don't want a hat that makes me look ten years older as soon as I take it off. Show me some more hats!＂ 中文翻译 一位妇女到一家帽子店买帽子。
她很挑剔，用了很长时间才选好了一顶。
已经忍耐到极限的售货员害怕她再改变主意，便恭维她：＂你做了极好的选择，夫人。
你戴上这顶帽子看上去起码年轻十岁！＂但令他沮丧的是，这位女士马上摘下了她的帽子说：＂我不想要一顶摘下来便使我立刻显得老十岁的帽子。
多拿一些帽子给我看看！
my dayI always get up early in the usually have my breakfast at 6:'m never late for school,I have lunch at 12:00,I have dinner with my I finish my homework I often play some games with my then will I to this is a busy day, but I feel full and satisfied.翻译我的一天我总是早上早起。
我通常在6点半吃早餐。
我上学从不迟到，我在12点吃午饭，我和我的家人共进晚餐。
我做完作业后我经常玩一些游戏与我的家人。
我才会放松。
虽然这是一个忙碌的一天，但我感到完全满意...
I love Friday, because after that day, I can take a break. I feel happy to see the weekend is ing. It is not like Mondy. Monday is the beginning of a long week. During the week, I have a lot of homework and I have to dress in students uniforms. Friday is different. I can dress up after do not have to do the homework on that evening. I can stay up late because I have no school the next day. That is why I love Friday.
我的卧室 My Bedroom I have a lovely bedroom. It is *** all but clean and beautiful. The wall is light green and the floor is white. There is a bed in my bedroom, it is really fortable. I sleep with it every night. And there is a *** all sofa near my bed, I always read books on it. There is also a desk in my room, I do my homework on it every evening. Near the desk, there is a shelf. There are many books on the shelf. You can borrow books from me if you like reading. My bedroom is so good that I like it very much. 我的宠物 My Pet I have a lovely pet. It's a *** all cat. It's name is Candy, because it looks like a candy. It has white and acid colors. It's *** aller than general cats. When I first saw it in the market, I liked it. Therefore, I begged my mother bought it to me and I succeeded. It has e to my home for three months. It is attracted. Everyone e to my home likes to play with it. It hides under the sofa or bed often. When I call it, it would react to me. Sometimes, it would walk to me quietly. I like my cat very much. 日记 Diary Today I was sad because I was blamed. The day before yesterday, my father gave me a tast. He told me to finish math exercises and he would check today. I have to days to finish them. But I did not, because there was a football game yesterday. I was so tired, so I fot them. Today, my father wanted to check my exercises. He found I did not finish, so he scolded me. He was angry and he do not let me play football anymore. I am afraid I can't play football anymore. 记一节英语课 An English Class Today I was sad because I was blamed. The day before yesterday, my father gave me a tast. He told me to finish math exercises and he would check today. I have to days to finish them. But I did not, because there was a football game yesterday. I was so tired, so I fot them. Today, my father wanted to check my exercises. He found I did not finish, so he scolded me. He was angry and he do not let me play football anymore. I am afraid I can't play football anymore. my best friend I have a best friend. She is a beautiful girl. She has long black hair, she has *** all eyes, she has a *** all mouth. She's tall and thin. She's very active. Her favourite food is fish,because they're very tasty. Her favourite colour is pink. Her favourite season is summer, because she can swim. She likes riding a bike and swimming. Who's she? She is my clas *** ate, LiangGanmeiDo you like meHello! Everyone. I'm a little rabbit. My name is Hanhan. Look! I'm very lovely. My eyes are red. My ears are long. My hair is white. My tail is short. I like carrots very much. I have a good friend. She's my little master. Her name is Zhou Xun. We always play games together. I like her very much and she likes me, too.
A:Is there a park near your house?B:'s a *** all one,but there are a lot of flowers and there any swings?B: there's a slide, we go and play there?B:Good 's buy a New Year card for our don't we make one?A:Good I don't know how to make a me show you how to do some trees and stars on the paper then write 'Happy New Year!'on 't fet to write 'Dear Grandma and Grandpa'.A:All right.这是我从书上摘抄下来的，不知道服不符合您的要求，如果还需要，请加记得加备注：百度
The Four seasonsA year has four season has three weather of one season is different from that of any life cycles of plants are controlled by the first season is three months in it are March,April and that time we have warm weather and fine plants e to wake up from is time for farmers to get ready for their second season is three months are June,July and weather is very hot and it often can go swimming and is time for all things to grow third season is three months are September,October and weather bees cooler and begin to fall to the is the harvest time for fourth season is and February are the three months of that weather is very cold,and most of the plants die at that it can enjoy skating and winter doesn' t stay with us for a long time,for spring es again soon.
I'm Daisy.（我叫黛丝）There are six people in my family（我的家庭中有6个人）---my grandfather（我的外公），my grandmother（我的外婆），my father（我的爸爸），my mother（我的妈妈），my sister（我的姐姐） and I（和我）. My grandparents are both 60 years old（我的外公外婆都60岁了）.They are very healthy（他们都很健康）.My father is a doctor（我的爸爸是一个医生）.I love my father very muth（我非常爱我的爸爸）.Because he works very hard（因为他工作很努力，辛苦）.I also love my mother（我也爱我的妈妈）.I don't like my sister（我不喜欢我的姐姐）.Because she is very strict with me（因为她对我很严厉）. But sometimes she doesn't with me （但是有时候她对我不严厉）. I love my family（我爱我的家）！
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认识了小学五年级勾股定理知识和勾股定理知识的常见运用，想必很多同学会去深入学习。本站用户整理了五年级数学小论文：勾股定理，欢迎阅读。五年级数学小论文：勾股定理1、证明一个三角形是直角三角形2、用于直角三角形中的相关计算3、有利于你记住余弦定理，它是余弦定理的一种特殊情况。中国最早的一部数学着作—— 周髀算经 的开头，记载着一段周公向商高请教数学知识的对话：周公问：“我听说您对数学非常精通，我想请教一下：天没有梯子可以上去，地也没法用尺子去一段一段丈量，那么怎样才能得到关于天地得到数据呢?”商高回答说：“数的产生来源于对方和圆这些形体饿认识。其中有一条原理：当直角三角形‘矩’得到的一条直角边‘勾’等于3，另一条直角边‘股’等于4的时候，那么它的斜边‘弦’就必定是5。这个原理是大禹在治水的时候就总结出来的呵。”从上面所引的这段对话中，我们可以清楚地看到，我国古代的人民早在几千年以前就已经发现并应用勾股定理这一重要懂得数学原理了。稍懂平面几何饿读者都知道，所谓勾股定理，就是指在直角三角形中，两条直角边的平方和等于斜边的平方用勾(a)和股(b)分别表示直角三角形得到两条直角边，用弦(c)来表示斜边，则可得：勾2+股2=弦2亦即：a2+b2=c2勾股定理在西方被称为毕达哥拉斯定理，相传是古希腊数学家兼哲学家毕达哥拉斯于公元前550年首先发现的。其实，我国古代得到人民对这一数学定理的发现和应用，远比毕达哥拉斯早得多。如果说大禹治水因年代久远而无法确切考证的话，那么周公与商高的对话则可以确定在公元前1100年左右的西周时期，比毕达哥拉斯要早了五百多年。其中所说的勾3股4弦5，正是勾股定理的一个应用特例(32+42=52)。所以现在数学界把它称为勾股定理，应该是非常恰当的。在稍后一点的 九章算术一书 中，勾股定理得到了更加规范的一般性表达。书中的 勾股章 说;“把勾和股分别自乘，然后把它们的积加起来，再进行开方，便可以得到弦。”把这段话列成算式，即为：弦=(勾2+股2)(1/2)即：c=(a2+b2)(1/2)定理：如果直角三角形两直角边分别为a，b，斜边为c，那么a^平方+b^平方=c^平方;即直角三角形两直角边的平方和等于斜边的平方。如果三角形的三条边a，b，c满足a^2+b^2=c^2，如：一条直角边是3，一条直角边是四，斜边就是33+4。
你不拿货卖是ヾ(❀╹◡╹)ﾉ~ヾ(●´∇｀●)ﾉ哇～哦利润空间锁困了就进入太用力酷我极速蜗牛太庸俗哦空
写作思路及要点：以生活中的数学为题，围绕这一主题结合生活中的数学事迹展开详细描写，接着表达自己的想法以及观点。
正文：
生活中处处都有数学，一个井盖、一个圆柱、一个圆形……我们可不能小看了这数学，虽然这些东西在日常生活中很常见，可数学的用处可大着呢！不信，咱们来瞧瞧吧！
有一次，上二年级的小表妹来我家玩。我很欢迎她，听说小表妹很聪明，于是我便想到考考她。我上网找到十个城市的天气预报给妹妹，说这十个城市的天气弄混了，麻烦你帮忙整理的既清楚又简洁，我是想看她会不会用统计图来整理这些城市的天气。
妹妹接过资料，笑着对我说：“没问题，包在我身上了！”几分钟的功夫，妹妹就把一张干净、整洁的城市天气预报的统计图给了我。我仔细看过后，笑了笑，摸摸妹妹的头，“真是长大了，一天比一天棒了！”妹妹客气地对我笑了笑，然后我们俩一起出去玩了。
生活中处处都有数学，只是有的人发现了，有人没发现；只要我们认真去找，认真对待，我相信就一定会发现数学的奥秘的。一旦你发现了数学的奥秘，就会知道其中的乐趣。
像中国的墨子、祖冲之、张衡、刘益、朱世杰……外国的阿基米德、高斯、艾萨克·牛顿、伯努利、欧拉……这些著名的数学家难道天生就有这样的神力吗？不，他们是靠自己的不懈努力换来的成绩，并不是生下来就具有特殊能力的。
上天对每个人都是公平的，只是有的人不珍惜机会罢了，所以我们要把握好机会，把握好数学，不要到最后才后悔莫及。生活中有很多数学都在等你去探索呢！快去看看吧！
关于数学的小论文：
以前，我一直以为学习”求最小公倍数”这种知识枯燥无味，整天与”求11和12的最小公倍数”类似这样的问题打交道，真是烦死人，总觉得学习这些知识在生活中没有什么用处。
然而，有一件事却改变了我的看法。
那是前不久的事了，爷爷和我一起乘坐公共汽车去青少年宫。我们爷俩坐的是3路车，快要出发的时候，1路车正好也和我们同时出发。
此时爷爷看着这两路车，突然笑着对我说：”小溦，爷爷出个问题考考你，好不好？”我胸有成竹地回答道：”行！””那你听好了，如果1路车每3分钟发车一次，3路车每5分钟发车一次。这两路车至少再过多少分钟后又能同时发车呢？”稍停片刻，我说：”爷爷你出的这道题不能解答。”爷爷疑惑地看着我：”哦，是吗？””这道题还缺一个条件：1路车和3路车的起点站是同一个地方。”
爷爷听了我的话，恍然大悟地拍了一下自个聪明秃顶的脑袋，笑着说：”我这个‘数学博士’也有糊涂的时候，出的题不够严密，还是小溦想得周全。”我和爷爷开心地哈哈地大笑起来。此时爷爷说：”那好，现在假设是同一个起点站，你说说用什么方法来解答？”我想了想，脱口而出：”再过15分钟。
因为3和5是互质数，求互质数的最小公倍数就等于这两个数的乘积（3х5=15)，所以15就是它们的最小公倍数。也就是两路车至少再过15分钟能同时发车。”爷爷听了夸我：”答案正确！100分。””耶！”听了爷爷的话，我高兴地举起双手。从这件事中，我明白了一个道理：数学知识在现实生活中真是无处不在啊。
关于数学的小论文：
以前，我一直以为学习”求最小公倍数”这种知识枯燥无味，整天与”求11和12的最小公倍数”类似这样的问题打交道，真是烦死人，总觉得学习这些知识在生活中没有什么用处。
然而，有一件事却改变了我的看法。
那是前不久的事了，爷爷和我一起乘坐公共汽车去青少年宫。我们爷俩坐的是3路车，快要出发的时候，1路车正好也和我们同时出发。
此时爷爷看着这两路车，突然笑着对我说：”小溦，爷爷出个问题考考你，好不好？”我胸有成竹地回答道：”行！””那你听好了，如果1路车每3分钟发车一次，3路车每5分钟发车一次。这两路车至少再过多少分钟后又能同时发车呢？”稍停片刻，我说：”爷爷你出的这道题不能解答。”爷爷疑惑地看着我：”哦，是吗？””这道题还缺一个条件：1路车和3路车的起点站是同一个地方。”
爷爷听了我的话，恍然大悟地拍了一下自个聪明秃顶的脑袋，笑着说：”我这个‘数学博士’也有糊涂的时候，出的题不够严密，还是小溦想得周全。”我和爷爷开心地哈哈地大笑起来。此时爷爷说：”那好，现在假设是同一个起点站，你说说用什么方法来解答？”我想了想，脱口而出：”再过15分钟。
因为3和5是互质数，求互质数的最小公倍数就等于这两个数的乘积（3х5=15)，所以15就是它们的最小公倍数。也就是两路车至少再过15分钟能同时发车。”爷爷听了夸我：”答案正确！100分。””耶！”听了爷爷的话，我高兴地举起双手。从这件事中，我明白了一个道理：数学知识在现实生活中真是无处不在啊。
五年级第二学期以来，我们学的主要内容就是长方体、正方体的表面积、体积和分数乘法的等。在长方体、正方体表面积的单元里，有许多典型的题目，而这些题目通常会导致我们思维混乱从而做错。下面，我就来分析一道多次出错的题目。 题目是这样的： 一个长方体鱼缸，长6米、宽2米、深1米，制作这个鱼缸至少要多少平方米的玻璃？ 我是这样做的： （6×2+2×1+6×1）×2-6×2 分析我的做法： 我先算出整个鱼缸6个面的总面积，再减去缺少的那个面（上面）的面积。因为鱼缸要养鱼，所以不可能是完全封闭的，往往都是上面作为缸口，所以要减去上面的面积。 方法多种多样，做这一道题还有另一种方法： （2×1+6×1）×2+6×2 分析这样的做法： 已知鱼缸共有5个面，其中前面、后面是一组，左面、右面是一组，可以先算出前、后、左、4个面的总面积，再加上下面的面积，就可以求出鱼缸5个面的面积，也就是鱼缸的表面积。 最容易出错的地方： 像这样类型的题目，往往容易出错的有2点。一是不联合实际想，把鱼缸的表面积当做6个面来计算；二是虽然知道鱼缸只有5个面，但却不知道少的面面积应当怎么算。 我的建议： 当你做到这种题目时，应该画一画图来帮助你，并在图形上标明长、宽、高对应的数目，这样题目就一目了然，做起来就会得心应手了。另外，还要注意单位是否一致！ 以上就是我对“鱼缸问题”的分析与见解
0是一个神秘的数字，它像宇宙中的奥秘一样，让人捉摸不透。0也是一个重要的数字，如果你一不小心，多添了一个0或少加了一个0的话，那后果真是不堪设想。这次的数学考试，让我真正领略了0的重要性。当考卷发下来的时候，99分!我立即寻找错误点。结果令我目瞪口呆。原来是4500÷90这道题。“怎么可能这么简单的题我也会出错?”我心里嘀咕道。想起当时在口算45000÷90这道题时，我轻而易举地写下50，还十分自信，可到头来一计算原来得500，差了一个0。这是多少不应该的呀!不该错的也错了，想必0是多么重要呀!如果我以后当了公司的财务总经理，别人来提钱，本来要提10000元，我却多加了一个0--100000，在帐单上仍然记了10000元。那这90000元我向谁来要呀!这一切后果都得我承担啊。通过这件事，我明白了在工作上、学习上都要一丝不苟，要不然后果非常严重。
大千世界，无奇不有，在我们数学王国里也有许多有趣的事情。比如，在我现在的第九册的练习册中，有一题思考题是这样说的：“一辆客车从东城开向西城，每小时行45千米，行了小时后停下，这时刚好离东西两城的中点18千米，东西两城相距多少千米？王星与小英在解上面这道题时，计算的方法与结果都不一样。王星算出的千米数比小英算出的千米数少，但是许老师却说两人的结果都对。这是为什么呢？你想出来了没有？你也列式算一下他们两人的计算结果。”其实，这道题我们可以很快速地做出一种方法，就是：45×＝（千米），＝（千米），×2＝261（千米），但仔细推敲看一下，就觉得不对劲。其实，在这里我们忽略了一个非常重要的条件，就是“这时刚好离东西城的中点18千米”这个条件中所说的“离”字，没说是还没到中点，还是超过了中点。如果是没到中点离中点18千米的话，列式就是前面的那一种，如果是超过中点18千米的话，列式应该就是45×＝（千米），＝（千米），×2＝189（千米）。所以正确答案应该是：45×＝（千米），＝（千米），×2＝261（千米）和45×＝（千米），＝（千米），×2＝189（千米）。两个答案，也就是说王星的答案加上小英的答案才是全面的。在日常学习中，往往有许多数学题目的答案是多个的，容易在练习或考试中被忽略，这就需要我们认真审题，唤醒生活经验，仔细推敲，全面正确理解题意。否则就容易忽略了另外的答案，犯以偏概全的错误。