...需要一篇文章,谁能帮帮小女子,小女子肯定来生做
编辑: admin 2017-26-03
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我不懂!但希望能为你加油!
类似问题
类似问题1: 5000字的作文环保的类型的题目[语文科目]
地球是我们人类、动植物生存繁衍的大家庭.可是现在,地球已经不再是那个洁净而美丽的地球了,它正变得千疮百孔,遍体鳞伤,正在独自地哭泣着,不知向谁述说自己已面临的不幸.目前,生态环境正日益恶化,对我们影响最大的就是水资源.据有关资料报道:排水系统的铺设和清洁剂的大量使用有增无减,消耗水中的氧,使鱼类死亡,生态系统恶化,人类的活动也会使大量的工业、农业污染物排入河中,使水受到污染.据有关资料显示,全世界每年约有4200多亿吨的污水排入河中,污染了5.5万亿吨的淡水.看到这一个个触人惊心的数据,你想到了什么呢?没错,这就是人类破坏环境的下场,这就是大自然给人类的惩罚啊!当我们头顶的天空不再明净,不再蔚蓝时,我们是否才想起应该保护我们所生活的环境呢?当我们脚下的土地变成黄沙变成荒漠时,我们是否才后悔当初没有珍惜我们的大自然呢?面对曾经美好的一切,我们不禁要大声问道:“谁来保护我们的绿色家园?”历史的车轮正轰隆隆地驶向22世纪,我们作为一名小学生,一个小公民,必须勇敢地站起来,呼吁大家:保护环境已经到了刻不容缓缓的地步,我们责无旁货!谁希望看到自古以来辛勤哺育我们人类的地球母亲即将变成一个欲哭无泪的黑色地球呢?不,谁都不愿意看到!是啊,由于人类无节制地对森林乱砍滥伐,不注意保护生态平衡,致使许多森林遭到了毁坏;小鸟没有家了,再也不会欢歌笑语;大地也没有漂亮的绿衣裳,不再生机勃勃了.但是,有些人们还是没有意识到我们的家园正在慢慢地被毁坏着呢!大地拥有和谐美丽的绿色,花儿才显得娇艳动人;心中拥有纯洁的绿色,心灵才显得更加红彤灿烂.人类需要绿色,地球母亲更加需要绿色,那就 让我们手牵着手,心连着心,共创绿色环境,让蓝天更蓝,让清水更清,让我们的地球母亲更加可爱、更加生机勃勃吧!
类似问题2: 5000字的作文,谁有?急用![语文科目]
日本的科学家从蚂蚁觅食中受到了启示.他们开发出一种大规模集成电路,模拟觅食的蚂蚁齐心合力搬运食物,从距离最近的“食物源”顺次向“蚁巢”源源不断地输送信息.根据这种新的信息处理方法,人们很可能开发出一种新型计算模式的计算机呢.人类从大自然中得到的启示还有很多.比如:模仿鸡蛋外形的特点,建造了拱形桥;受鸟儿飞翔的启示,发明了飞机;从茅草划破手指,发明了锯……大自然中林林总总的动物、植物以各自独特的生存方式,向我们暗示着一个个自然的奥秘.大自然给我们的启示有很多,其中有一种蛇叫响尾蛇,它有一种红外线的眼睛,人类通过这种蛇的眼睛,研制出一种有着响尾蛇一样眼睛的导弹,它的名字叫响尾蛇导弹,因为人类是仿照响尾蛇眼睛制造出来的,所以命名为响尾蛇导弹.响尾蛇导弹能和响尾蛇一样,能用"热眼"准确无误的跟踪敌人,直至把敌人摧毁.因为响尾蛇的"热眼"是根据敌人的温度来判断敌人的位置,飞机,战舰,坦克等这些东西,响尾蛇导弹都能准确无误的命中.法国研制的机动式低空近程全天候地空导弹.主要用于对付低空、超低空战斗机、武装直升机,以保卫机场、港口要地,也可用于对付巡航导弹.导弹长2.94米 ,弹径0.156米,弹重84.5千克,发射筒长3.02米.战斗部采用破片聚焦型,总重13.9千克,杀伤半径6~8米.动力装置为单级固体火箭发动机,制导方式为全程无线电指令制导,作战半径500~8500米,作战高度50~3000米.导弹具有半越野机动能力.五彩的蝴蝶锦色粲然,如重月纹凤蝶,褐脉金斑蝶等,尤其是萤光翼凤蝶,其后翅在阳光下时而金黄,时而翠绿,有时还由紫变蓝.科学家通过对蝴蝶色彩的研究,为军事防御带来了极大的裨益.在二战期间,德军包围了列宁格勒,企图用轰炸机摧毁其军事目标和其他防御设施.苏联昆虫学家施万维奇根据当时人们对伪装缺乏认识的情况,提出利用蝴蝶的色彩在花丛中不易被发现的道理,在军事设施上覆盖蝴蝶花纹般的伪装.因此,尽管德军费尽心机,但列宁格勒的军事基地仍安然无惹,为赢得最后的胜利奠定了坚实的基础.根据同样的原理,后来人们还生产出了迷彩服,大大减少了战斗中的伤亡.蜂巢由一个个排列整齐的六棱柱形小蜂房组成,每个小蜂房的底部由3个相同的菱形组成,这些结构与近代数学家精确计算出来的——菱形钝角109.28’,锐角70.32’完全相同,是最节省材料的结构,且容量大、极坚固,令许多专家赞叹不止.人们仿其构造用各种材料制成蜂巢式夹层结构板,强度大、重量轻、不易传导声和热,是建筑及制造航天飞机、宇宙飞船、人造卫星等的理想材料.蜜蜂复眼的每个单眼中相邻地排列着对偏振光方向十分敏感的偏振片,可利用太阳准确定位.科学家据此原理研制成功了偏振光导航仪,早已广泛用于航海事业中蜻蜒通过翅膀振动可产生不同于周围大气的局部不稳定气流,井利用气流产生的涡流来使自己上升.蜻蜒能在很小的推力下翱翔,不但可向前飞行,还能向后和左右两侧飞行,其向前飞行速度可达72km/小时.此外,蜻蜒的飞行行为简单,仅靠两对翅膀不停地拍打.科学家据此结构基础研制成功了直升飞机.飞机在高速飞行时,常会引起剧烈振动,甚至有时会折断机翼而引起飞机失事.蜻蜒依靠加重的翅痣在高速飞行时安然无恙,于是人们仿效蜻蜒在飞机的两翼加上了平衡重锤,解决了因高速飞行而引起振动这个令人棘手的问题.跳蚤的跳跃本领十分高强,航空专家对此进行了大量研究,英国一飞机制造公司从其垂直起跳的方式受到启发,成功制造出了一种几乎能垂直起落的鹞式飞机.现代电视技术根据昆虫单复眼的构造特点,造出了大屏幕彩电,又可将一台台小彩电荧光屏组成一个大画面,且可在同一屏幕上任意位置框出某几个特定的小画面,既可播映相同的画面,又可播映不同的画面.科学家根据昆虫复眼的结构特点研制成功的多孔径光学系统装置,更易于搜索到目标,已在国外一些重要武器系统中应用.根据某些水生昆虫的组成复眼的单眼之间相互抑制的原理,制成的侧抑制电子模型,用于各类摄影系统,拍出的照片可增强图像边缘反差和突出轮廓,还可用来提高雷达的显示灵敏度,也可用于文字和图片识别系统的预处理工作.美国利用昆虫复眼加工信息及定向导航原理,研制了具有很大实用价值的仿昆虫复眼寻的末制导导引头的工程模型.日本利用昆虫形态及特性开发研制了六足机器人等工学机器和建筑物的新构造方式
大自然的启示
车在南横的曲折蜿蜒里.
一步就是千里,深崖断谷,天泉山涧.「美」在这里几乎不成问题.开一扇窗,撷取一片山岚,风呼朋引伴而来;穿过层峦叠嶂,杉林,河谷在阳光闪耀之处,大自然为我们开拓了新的视野.
人因哆嗦而立刻遁入寂静里,虽然无语片刻沈默,却各自思寻生命的奥义,是怎样的鬼斧神工,椎心泣血,成就了大地如此壮阔的景观,而先民胼手胝足,一凿痕一雕镂几乎是以开天辟地的精神,贯穿这步步嶮巇的山岳,诚然令人肃然.
车愈向上爬行,海拔愈高,人的适应力也就低了.头昏,耳鸣袭扰赏玩的游客;山风灌入车内,吸进一股清新冷涩的气味,人便在开窗摇窗之间,接受山的教化,自然的洗礼.而鸟是山间的主人,大清晨便出来觅食,不时见到巨嘴鸦停於枯木上,以迎宾之姿静立端坐.
因文明尚不及全面破坏,山中的一切显得自然而有神韵.不论是一草一木,一枝花一点露,总觉得生长是如此理所当然.而那些活过几世纪,随著改朝换代仍保有原貌的老树,光彩奕奕散发著生命的气息,昂扬张拔向天际伸展,每一个角度,每一个躯干转折,鲜明而有力量,如一位王者,亲临天下,指唤著他的随从,完全征服了这片天空.
我们也全然被征服了.人之模仿自然胜於利用或改造它,科学的力量虽逞一时之快,表面上看起来似操控万物,其实却反为自然所主宰,我们实在无法否定大地的力量,就像所有人一回到原野的怀抱,便要为它悸动,震慑一般.也因为如此,我们始终不能忘情於山水,总竭尽所能刻意去亲吻它的芳泽,领略它的甜蜜.
更有甚者,大口呼吸森林释放之芬多精,馋嘴似的拍摄,录影,恨不得能将这整座山林悉数搬回,制成盆景,搁於案头,镇日把玩.自然是魔,驾驭人的心灵.老子早有暗示:「天地之间,其犹橐龠乎,虚而不屈,动而愈出」,只要我们愈向它靠拢,便发觉宇宙奥秘愈是神奇,如源源不断的聚宝盆,永远等待人去探访,去揭面纱.
车过隧道,并不挺长,前后却判若两个世界.隧道口前,艳阳在天,风光绮丽,明暗有致;一出隧道,进入哑口,天气忽变,山岚缥缈,气象万千,更显阴沈诡谲.一隧道之隔,变化如此,不禁令人臣服感慨.
也只有大自然能够在瞬间拂袖轻拨,谈笑中呼风唤雨,怡然自得.相较於此,我们不是如同蜉蝣般,汲汲营营於生灭间吗?这是大地传达的语汇,也是它的启示
类似问题3: 【作文5000字】百度作业帮[语文科目]
5000字,刚好
类似问题4: 【关于战争的作文5000字以上,】百度作业帮
我非常喜欢和平鸽,因为我看到了它们就像是看到了和平.它们把和平的希望带到了每一个孩子的心中,使我的心顿时亮了起来,同时在那片美好的心田上打开了一扇心灵的窗口.通过那扇窗口,我看到了广阔的蓝天,天上飞满了传情...
类似问题5: 商务英语文章3000-5000字希望得到3000-5000字的商务英语阅读材料.或者关于商务经贸方面的英语文章.配有汉字翻译为佳.[英语科目]
I HAVE A DREAM 我有一个梦想
如下:Five score years ago, a great American, in whose symbolic shadow we stand signed the Emancipation Proclamation. This momentous decree came as a great beacon light of hope to millions of Negro slaves who had been seared in the flames of withering injustice. It came as a joyous daybreak to end the long night of captivity. But one hundred years later, we must face the tragic fact that the Negro is still not free.
One hundred years later, the life of the Negro is still sadly crippled by the manacles of segregation and the chains of discrimination. One hundred years later, the Negro lives on a lonely island of poverty in the midst of a vast ocean of material prosperity. One hundred years later, the Negro is still languishing in the corners of American society and finds himself an exile in his own land.
So we have come here today to dramatize an appalling condition. In a sense we have come to our nation's capital to cash a check. When the architects of our republic wrote the magnificent words of the Constitution and the Declaration of Independence, they were signing a promissory note to which every American was to fall heir.
This note was a promise that all men would be guaranteed the inalienable rights of life, liberty, and the pursuit of happiness. It is obvious today that America has defaulted on this promissory note insofar as her citizens of color are concerned. Instead of honoring this sacred obligation, America has given the Negro people a bad check which has come back marked "insufficient funds." But we refuse to believe that the bank of justice is bankrupt. We refuse to believe that there are insufficient funds in the great vaults of opportunity of this nation.
So we have come to cash this check -- a check that will give us upon demand the riches of freedom and the security of justice. We have also come to this hallowed spot to remind America of the fierce urgency of now. This is no time to engage in the luxury of cooling off or to take the tranquilizing drug of gradualism. Now is the time to rise from the dark and desolate valley of segregation to the sunlit path of racial justice. Now is the time to open the doors of opportunity to all of God's children. Now is the time to lift our nation from the quicksands of racial injustice to the solid rock of brotherhood.
It would be fatal for the nation to overlook the urgency of the moment and to underestimate the determination of the Negro. This sweltering summer of the Negro's legitimate discontent will not pass until there is an invigorating autumn of freedom and equality. Nineteen sixty-three is not an end, but a beginning. Those who hope that the Negro needed to blow off steam and will now be content will have a rude awakening if the nation returns to business as usual. There will be neither rest nor tranquility in America until the Negro is granted his citizenship rights.
The whirlwinds of revolt will continue to shake the foundations of our nation until the bright day of justice emerges. But there is something that I must say to my people who stand on the warm threshold which leads into the palace of justice. In the process of gaining our rightful place we must not be guilty of wrongful deeds. Let us not seek to satisfy our thirst for freedom by drinking from the cup of bitterness and hatred.
We must forever conduct our struggle on the high plane of dignity and discipline. we must not allow our creative protest to degenerate into physical violence. Again and again we must rise to the majestic heights of meeting physical force with soul force.
The marvelous new militancy which has engulfed the Negro community must not lead us to distrust of all white people, for many of our white brothers, as evidenced by their presence here today, have come to realize that their destiny is tied up with our destiny and their freedom is inextricably bound to our freedom.
We cannot walk alone. And as we walk, we must make the pledge that we shall march ahead. We cannot turn back. There are those who are asking the devotees of civil rights, "When will you be satisfied?" we can never be satisfied as long as our bodies, heavy with the fatigue of travel, cannot gain lodging in the motels of the highways and the hotels of the cities. We cannot be satisfied as long as the Negro's basic mobility is from a smaller ghetto to a larger one. We can never be satisfied as long as a Negro in Mississippi cannot vote and a Negro in New York believes he has nothing for which to vote. No, no, we are not satisfied, and we will not be satisfied until justice rolls down like waters and righteousness like a mighty stream.
I am not unmindful that some of you have come here out of great trials and tribulations. Some of you have come fresh from narrow cells. Some of you have come from areas where your quest for freedom left you battered by the storms of persecution and staggered by the winds of police brutality. You have been the veterans of creative suffering. Continue to work with the faith that unearned suffering is redemptive.
Go back to Mississippi, go back to Alabama, go back to Georgia, go back to Louisiana, go back to the slums and ghettos of our northern cities, knowing that somehow this situation can and will be changed. Let us not wallow in the valley of despair. I say to you today, my friends, that in spite of the difficulties and frustrations of the moment, I still have a dream. It is a dream deeply rooted in the American dream.
I have a dream that one day this nation will rise up and live out the true meaning of its creed: "We hold these truths to be self-evident: that all men are created equal." I have a dream that one day on the red hills of Georgia the sons of former slaves and the sons of former slaveowners will be able to sit down together at a table of brotherhood. I have a dream that one day even the state of Mississippi, a desert state, sweltering with the heat of injustice and oppression, will be transformed into an oasis of freedom and justice. I have a dream that my four children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character. I have a dream today.
I have a dream that one day the state of Alabama, whose governor's lips are presently dripping with the words of interposition and nullification, will be transformed into a situation where little black boys and black girls will be able to join hands with little white boys and white girls and walk together as sisters and brothers. I have a dream today. I have a dream that one day every valley shall be exalted, every hill and mountain shall be made low, the rough places will be made plain, and the crooked places will be made straight, and the glory of the Lord shall be revealed, and all flesh shall see it together. This is our hope. This is the faith with which I return to the South. With this faith we will be able to hew out of the mountain of despair a stone of hope. With this faith we will be able to transform the jangling discords of our nation into a beautiful symphony of brotherhood. With this faith we will be able to work together, to pray together, to struggle together, to go to jail together, to stand up for freedom together, knowing that we will be free one day.
This will be the day when all of God's children will be able to sing with a new meaning, "My country, 'tis of thee, sweet land of liberty, of thee I sing. Land where my fathers died, land of the pilgrim's pride, from every mountainside, let freedom ring." And if America is to be a great nation, this must become true. So let freedom ring from the prodigious hilltops of New Hampshire. Let freedom ring from the mighty mountains of New York. Let freedom ring from the heightening Alleghenies of Pennsylvania! Let freedom ring from the snowcapped Rockies of Colorado! Let freedom ring from the curvaceous peaks of California! But not only that; let freedom ring from Stone Mountain of Georgia! Let freedom ring from Lookout Mountain of Tennessee! Let freedom ring from every hill and every molehill of Mississippi. From every mountainside, let freedom ring.
When we let freedom ring, when we let it ring from every village and every hamlet, from every state and every city, we will be able to speed up that day when all of God's children, black men and white men, Jews and Gentiles, Protestants and Catholics, will be able to join hands and sing in the words of the old Negro spiritual, "Free at last! free at last! thank God Almighty, we are free at last!"
5评分几年前,一位伟大的美国人,在其象征的阴影我们签署了解放宣言.这一重要的法令是一个伟大的指路明灯的希望数以百万计的黑人奴隶谁已经烙在火焰枯萎不公正.这是一个欢乐的黎明,结束漫漫长夜的囚禁.但是,百年之后,我们必须面对的悲惨事实,即黑人仍然没有自由.
一百多年后,生活的黑人仍是可悲的残废了手铐的隔离和歧视的锁链.一百多年后,黑人生活在一个孤独的岛屿贫困正处在远隔重洋的物质繁荣. 100年后的今天,黑人仍挣扎在弯道中的美国社会,并认为自己是流亡在自己的土地.
因此,我们今天来到这里,开始表现令人震惊的状况.从某种意义上讲,我们来到我们国家的首都,以现金支票.当我们共和国的缔造者的宏伟话写在宪法和独立宣言,他们签署了期票的每一个美国人是属于继承人.
这说明是一个承诺,所有的人将得到保障不可剥夺的权利,生命权,自由权和追求幸福.很显然,美国今天已经拖欠本本票,因为她的公民的颜色感到关切.不是纪念这一神圣的义务,美国的黑人提供了一个坏的人检查了回来标有“足够的资金. ”但是,我们拒绝相信,正义是银行破产.我们拒绝认为,没有足够的资金在大拱顶的机会,这个国家.
所以,我们来兑现这张支票-支票这将给予我们的需求财富的自由和安全的正义.我们还来到这个神圣的位置,提醒美国的紧迫性,现在激烈.这是没有时间去从事豪华降温或采取安定药物的渐进.现在是时候