值得背诵的优美句子

第一篇：值得背诵的优美句子

背诵

1、请保留一份单纯，使你多一份与人的友善，少一些心灵的冷漠麻木；请保留一份单纯，使你多一份人生的快乐，少一些精神的衰老疲惫；请保留一份单纯，使你多一份奋进的力量，少一些故作高深的看破红尘。

2、成功是你梦寐以求的那朵红玫瑰，挫折正是那遍及周围的针刺。快乐是你辛勤耕耘获得的果实，悲伤正是那成熟前的秕粒。

3、天空收容每一片云彩，不论其美丑，所以天空宽阔无边。大地拥抱每一寸土地，不论其贫富，所以大地广袤无垠。海洋接纳每一条河流，不论其大小，所以海洋广阔无边。

4、当简爱说：“我们是平等的，我不是无感情的机器”，我懂得了作为女性的自尊；当裴多菲说：“若为自由故，两者皆可抛”，我懂得了作为人的价值；当鲁迅说：“不在沉默中爆发，就在沉默中灭亡”，我懂得人应具有反抗精神；当白朗宁说：“拿走爱，世界将变成一座坟墓”，我懂得了为他人奉献爱心的重要。

5、大厦巍然屹立，是因为有坚强的支柱，理想和信仰就是人生大厦的支柱；航船破浪前行，是因为有指示方向的罗盘，理想和信仰就是人生航船的罗盘；列车奔驰千里，是因为有引导它的铁轨，理想和信仰就是人生列车上的铁轨。

6、什么是幸福？幸福是果园里果农望着压满枝头果实的满脸喜色，幸福是教室里莘莘学子憧憬未来的动人笑脸，幸福是实验室里科学家又有新发现时的舒展眉头，幸福是领奖台上运动员仰望国旗冉冉升起时的莹莹泪光。幸福是奋斗的结晶，勤劳的丰碑。

7、未经历坎坷泥泞的艰难，哪能知道阳光大道的可贵；未经历风雪交加的黑夜，哪能体会风和日丽的可爱；未经历挫折和磨难的考验，怎能体会到胜利和成功的喜悦。挫折，想说恨你不容易……

8、幸福，时时刻刻围绕在你身旁。如果你从母亲手中接过饭碗，心存温馨，那就是幸福；如果你在灯下读着朋友的来信，品味友情，那就是幸福；如果你独坐一隅，静静听歌，凝神遐思，那就是幸福

9、有人说，幸福是星级宾馆里山珍海味间的觥筹交错；有人说，幸福是高档舞台厅里动人旋律中的翩翩起舞；有人说，幸福是端座奥迪、宝马车于人流如潮的大街上招摇过市；也有人说，幸福是待在密室里数着成叠的百元大钞；然而我要说：拥有这些，不一定就是真的拥有了幸福！

10、远去的飞鸟，永恒的牵挂是故林；漂泊的船儿，始终的惦记是港湾；奔波的旅人，无论是匆匆夜归还是离家远去，心中千丝万缕、时时惦念的地方，还是家。

11、幸福是什么？是功成名就、受人敬仰吗？是恬静悠闲、无牵无挂吗？是高朋满座、儿孙绕膝吗？我说：幸福是……。

12、人生就像一座山，重要的不是它的高低，而在于灵秀；人生就像一场雨，重要的不是它的大小，而在于及时。

13、要装进一杯新泉，你就必须倒掉已有的陈水；要获取一枝玫瑰，你就必须放弃到手的蔷薇；要多一份独特的体验，你就必须多一份心灵的创伤。

14、“指点江山，激扬文字”是一种豪迈的潇洒，“天生我材必有用”是一种自信的潇洒，“独钓寒江雪”是一种高洁的潇洒，“不破楼兰终不还”是一种悲壮的潇洒。

15、风从水上走过，留下粼粼波纹；阳光从云中穿过，留下丝丝温暖；岁月从树林走过，留下圈圈年轮，朋友，我们从时代的舞台上走过，留下了什么呢？

16、希望大海风平浪静，却常常有狂风和恶浪。希望江河一泻千里，却常常有旋涡和急流，希望生活美满幸福，却常常有悲伤和忧愁。

17．冬天的河干涸了，我相信，春水还会来临，那时白帆就是我心中的偶像；风中的树叶凋零了，我相信，泥土里的梦将在枝头开花结果。

18、天使的翅膀碎了，落到人间，成了我们的忧伤；诚信的被囊抛了，散到世上，成了撒旦的魔杖。

19、没有哪一种胭脂能涂抹时间，没有哪一件服装能掩饰灵魂，没有哪一套古籍能装潢空虚。

20、它可能是一座山，让你感受巍峨，它可能是一片海，让你体会壮阔，它可能是一首交响乐，让你领略激越，它可能是一座石雕，让你明白雄健。

21、在经受了失败和挫折后，我学会了坚韧；在遭受到误解和委屈时，我学会了宽容；在经历了失落和离别后，我懂得了珍惜。

22、不是苦恼太多，只是我们不懂生活；不是幸福太少，只是我们不懂把握。

23、责任感是诸葛孔明“鞠躬尽瘁，死而后已”写就的《出师表》，责任感是孔繁森离家别母血洒高原树立的公仆丰碑，责任感是贝多芬挑战人生超越自我谱写的《命运交响曲》。

24、金钱可以买来名贵的手表，但买不来宝贵的时间；金钱可以买来美味的食品，但买不好的胃口。

25、是一丛秋菊，也要散发芳香；是一片秋叶，也要装点大地；是一株古柏，也要撑起蓝天；是一眼古井，也要流出清泉。

26、尊重别人是一种美德，受人尊重是一种幸福。

27、书是良药，刘向说：“书犹药也，善读可以医愚”；书是益友，臧克家说：“读过一本书，像交了一位益友”；书是窗户，高尔基说：“每一本书，都在我面前打开了一扇窗户”。

28、成熟是一种素质，一种源于心灵表于行动的素质；成熟是一种能力，一种自我约束自我管理的能力；成熟是一种态度，一种对任何事物都保持冷静的态度；成熟是一种心境，一种能看淡一切，万事淡如水的心境。

29、信念之于人，犹翅膀之于鸟，信念是飞翔的翅膀

30、爱心是一片照射在冬日的阳光，它使贫病交迫的人分外感到人间的温暖；爱心是一泓出现在沙漠的泉水，它使濒临绝境的人重新看到生活的希望。

31、包装是房子富丽堂皇的外壳，包装是丑妇手上绚丽的太阳伞，包装是模特在舞台上走出的一字猫步。

32、“慈母手中线，游子身上衣”说的是亲情；“人生得一知己足，斯世当以同怀视之”说的是友情，“曾经沧海难为水，除却巫山不是云”说的是爱情；“苟利国家生死以，岂因祸福避趋之”说的是爱国情。写作精彩语段集锦

（一）排比、比喻

1、面对着苍茫的群山，面对着无际的原野，面对着清澈的小溪，面对着芳郁的野花，面对着浅浅的草叶，我沉默，我惊叹，我欣喜，我欢乐，我无言。

2、我还是爱着属于我的初三的。爱属于初三给与我的心旷神怡的时刻：当你冥思苦想，而终于恍然大悟的时候，你会品尝成功的喜悦；当你忙里偷闲和别人闲聊上几句家常时，你会发现生活的乐趣；当你趁着课间十分钟一瞥窗外那云卷云舒的宽容时，你会感到心灵的轻松与惬意。所以，我说——初三是一幅流光溢彩的油画，是一片充满幻想的云霞，是一个充满竞争的年华。

3、初三让我受益匪浅，她让我明白了珍惜时间才不会虚度此生的真谛，她让我懂得了珍爱人生就要去拼搏去奋斗的道理。如醉如痴，她让我用激情吮吸着知识的甘露；豁然开朗，她让我用真诚去探寻着做人的美好。

4、追求，就是千年不变的至情，百代流传的绮梦；是沁人心脾，令人留连的田园风光；是一个人、一个家、一个民族、一个国家奋斗不息的崇高理想。因为有了追求，才有了一个个古老而又美好的传说；有了追求，才有了一座座绵延无边、用血肉筑起的钢铁长城；有了追求，才有了一尊尊屹立于天地之间、永不低头的雕像。

5、美丽是平凡的，平凡得让你感觉不到她的存在；美丽是平淡的，平淡得只剩下温馨的记忆；美丽又是平静的，平静的只有你费尽心思才能激起她的涟漪。

6、有人爱雾，爱它的朦胧，爱它的缥缈；有人爱霜，爱它的洁白，爱它的淡雅；也有人爱露，爱它的晶莹剔透，爱它的娇小玲珑；更有人爱雪，爱它的纯洁，爱它的素雅。

当暴风雨来袭时，林海枝舞叶涌，俯仰起伏，万千树干就是万千根摇曳的琴弦，弹奏出惊心动魄的交响乐；云雾涌来，一切淹没在白茫茫的浪涛之下，变成一片摇摆晃动的海底森林；但当热带雨倾泻过后，太阳重又照耀，亿万叶片上的水珠，闪烁出亿万晶莹的星星，眩人眼目。而我，唯独钟情于雨。（开头）

7、是的，童心无价。拥有了童心，你便会拥有天真纯洁、无私无邪的品格；拥有了童心，你便会忘记生活中的琐屑愁事，快乐的面对人生；拥有了童心，你便会懂得如何面对生活，享受生活。

8、人生好似调味盘，酸得是惆怅，苦的是锻炼，辣的是过程，甜的是成功。

9、花一样的你，花一样的我，花一样的年华，花一样的世界，花一样的未来。不要在虚度光阴，不要在碌碌无为。经常同自己谈话吧，你会更了解自己，你会过的更充实，你会更真心地热爱这个美好的世界。（结尾）

10、亲爱的朋友们，不要抱怨长路漫漫走得不潇洒浪漫，其实艰难困苦就是你成功的摇篮，让长风的翅膀携你过尽千帆，让心思的呼唤伴你尝过生命的难关。只要心中的风景不凋零，生命的叶子永远不会枯黄腐烂，永葆一颗接受磨砺的心，人生将会永远是春天。（议论）

（二）引用诗词、名言

11、爷爷告诉我，奶奶生前最爱梧桐。李清照‘梧桐更兼细雨’是一种思愁；李煜‘寂寞梧桐深院锁清秋’是‘剪不断’的离愁；周邦彦‘桐花半亩，静锁一庭愁雨’寄托的也是一腔愁绪。在梧桐树下，我学会了很多诗词，也渐渐地懂得了诗人们的心情。

12、我爱那‚飞流直下三千尺，疑是银河落九天‛的庐山瀑布；我爱那‚荡胸生层云，决眦入归鸟‛的泰山极顶；我爱那‚奔流到海不复归‛的黄河九曲；我爱那‚两岸猿声啼不住‛的长江三峡；我爱那‚秦时明月汉时关‛的古朴塞北；我爱好那‚日江花红胜火‛的秀丽江南

第二篇：值得背诵的名言警句

1.离开人生，哲学是空洞的；离开哲学，人生是盲目的！——傅佩荣 2.年轻人缺的不是激情，而是理性！3.我的眼里容不的沙子，如果你是我眼里的沙子，那么我会用我的包容让你变成黄金！

4.人若把一生的光阴虚度，便是抛下黄金未买一物！——萨迪 5.理想很丰满，但现实很骨感！6.我从来不认为半小时是微不足道的！——达尔文

7.黑就是黑，白就是白，绝对没有灰色地带！——《黑白战场》 8.不求天长地久，但求曾今拥有！9.在凶猛的鲨鱼，也会变成温顺的海豚！——《旗舰》

10.如果人能够重新活一次的话，有一半人都可以成为伟人！——《我的爸爸叫边红旗》

11.时光会使人忘掉很多伤痛！《梁山伯与祝英台》

12.月色虽美，却无言之;素有美酒，谁与共之！《梁山伯与祝英台》

13.莫问当年，朱颜戴绿翠；只怨谁，错把鸳鸯配！《梁山伯与祝英台》

14.懂，需要的是智慧；而面对，需要的是勇气！

15.为你的春天铺满鲜花；

为你的夏天支上蚊帐；

为你的秋天酿出美酒；

为你的冬天续上棉花！

16.优秀是一种习惯。和优秀的人在一起，我们会在不经意间变的更加优秀，并最终让优秀成为一种习惯！

17.要走好明天的路，必须记住昨天走过的路，思索今天正在走着的路！18.当我们搬开别人脚下的绊脚石时，也许恰恰是在为自己铺路！

19.站在你的左边，是因为那样可以离你的心更近一些……

20.人之所以能，是相信能！

21.没有一种不通过蔑视、忍受和奋斗就可以征服的命运！

22.成功不是将来才有的，而是从决定去做的那一刻起，持续累积而成的！23.再长的路，一步步也能走完；

再短的路，不迈开双脚也无法到达！24.人性最可怜的就是：我们总是想着天边的一座奇妙的玫瑰园，而不去欣赏今天就开在我们窗口的玫瑰！

25.当你成功的时候，不要瞧不起别人；

当你失败的时候，不要看不起自己！26.不要高看别人，别人没有那么强；

不要小瞧自己，自己没有那么弱！27.狼一样的团队，鹰一样的个体！28.给你的人生旅程带去些许的快乐，为你宝贵的生命点上一盏智慧的明灯，让你疲惫的心灵可以寻找到休憩的港湾！29.人不能两次踏进同一条河流!——赫拉克里特

30.如果你有激情和梦想，那么你会忘记自身的缺陷！

31.多一项技能、多一份选择、多一点成功！

32.不是不想爱，不是不去爱，怕只怕爱也是一种伤害！

33.因为不知道在乎什么，所以有着不在乎一切的坚强；

因为怕被人拒绝，所以有着拒绝一切的冷漠！34.父母给我性命，自己打造品牌！35.没有永恒的朋友，没有永恒的敌人，只有永恒的利益！——本杰明.迪斯雷利 36.谎言重复一千遍就是真理！37.当你母亲脆弱的时候，你能不能搂一搂她的肩膀，给她一点力量？ 38.女人是脆弱的，但母亲是坚强的！39.生命的意义在于活的充实，而不在于活得长久！

40.生命太短促了，就如同流星划过天际那短短的一瞬。在这一瞬之间，人却不得不用尽整个生命于尘世的山谷中挣扎，并时刻忧虑会掉入万劫不复的深渊！41.人不能割裂时间的结绳而存在，但过去早已化作尘世中的一缕青烟，未来的命运线也刻在今日的掌心，而今日正随着一次次呼吸融入宇宙大气。我们不能活在昨日的回忆中，也无法活在明日的虚幻中。为什么不在今日的世界里好好活着呢？

42.相信上帝，不如相信自己

全能的上帝，没有奇迹

仁慈的上帝，从不给予

上帝就是上帝，自己就是自己

如果非要相信上帝

那么我相信，上帝就是我，我就是上帝43.既然目标是地平线，留给世界的只能是背影！44.一个没有伟大人物出现的民族，是可怜的生物之群；

有了伟大人物而不知崇敬爱戴的民族，则是没有希望的奴隶之邦！45.在爱与情、缘与分的边缘，我选择默默的等待一个需要我的人！

46.有些鸟是不该关在笼子里的，它们的羽毛太丰韧。当它们飞起来时候，你会由衷的为它们高兴，觉得把它们关起来，是一种不可饶恕的罪孽，可是它们飞走以后，留下来的空间，不禁使你心中怅然！——《肖申克的救赎》 47.看来先生真不懂茶，否则，自应会品出高低的。喝茶，是一种心情，如果你的心情好了，那茶的高低还有那么重要吗？哦，俺也不曾想过。那依先生之见，当今武术流派这么多，难道也没有高低之分吗？我想是的，武术并没有高低之分，只有习武的人才有强弱之别！——《霍元甲》

第三篇：最值得背诵的美文

Recommended articles for recitation

1.Companionship of Books

A man may usually be known by the books he reads as well as by the company he keeps;for there is a companionship of books as well as of men;and one should always live in the best company, whether it be of books or of men.A good book may be among the best of friends.It is the same today that it always was, and it will never change.It is the most patient and cheerful of companions.It does not turn its back uponus in times of adversity or distress.It always receives us with the same kindness;amusing and instructing us in youth, and comforting and consoling us in age.Men often discover their affinity to each other by the love they have each for a book.The book is a truer and higher bond of union.Men can think, feel, and sympathize7 with each other through their favorite author.They live in him together, and he, in them.A good book is often the best urn of a life enshrining the best that life could think out;for the world of a man’s life is, for the most part, but the world of his thoughts.Thus the best books are threasuries of good words, the golden thoughts, which, remembered and cherished, become our constant companions and comforters.Books possess an essence of immortality.They are by far the most lasting products of human effort.Temples and statues decay, but books survive.Time is of no account with great thoughts, which are as fresh today as when they first passed through their authors’ minds, ages ago.What was then said and thought still speaks to us as vividlyas ever from the printed page.Books introduce us into the best society;they bring us into the presence of the greatest minds that have ever lived.We hear what they said and did;we see them as if they were really alive;we sympathize with them, enjoy with them, grieve with them;their experience becomes ours, and we feel as if we were in a measure actors with them in the scenes which they describe.—Samuel Smiles

2.Peace

Today we seek a moral basis for peace.It cannot be a real peace if it fails to recognize brotherhood.It cannot be a lasting peace if the fruit of it is oppression or starvation, or cruelty or human life dominated by armed camps.It cannot be a sound peace if small nations must live in fear of powerful neighbors.It cannot be a moral peace if freedom from invasion is sold for tribute.It cannot be an intelligent peace if it denies free passage to that knowledge of those ideals which permit men to find common ground.It cannot be a righteous peace if worship of God is denied.Peace, no less than war, must offer a spirit of comradeship, a spirit of achievement, a spirit of unselfishness, and indomitable will to victory.Peace, no less than war, must offer a spirit of comradeship, a spirit of achievement, a spirit of unselfishness, and indomitable will to victory.Peace can endure only so long as humanity really insists upon it, and is willing to work for it and sacrifice for it.—Franklin D.Roosevelt

3． To Spring

Oh you, sweet Spring, alight from cherub’s wing,And put the ugly winter full to flight;

And rouse the earth to smile, and larks to sing,With skies so bright and hearts of youth so light.Your gentle and genial breaths each blossom blow,While bees in gardens hum the lullabies.The hills and dales are stripp’d of mantles of snow,And streams and rivers freed from irons of ice.May seasons all be Spring—the pride of years,That all the things would e’er in glories gleam!

May men be ever in the prime of years!

But dream, however sweet, is but a dream.If happy when you come and sad when gone,Would that you’d never come or never gone!

By Henry Wadsworth Longfellow

4．Night

Night has fallen over the country.Through the trees rises the red moon, and the stars are scarcely seen.In the vast shadow of night the coolness and the dews descend.I sit at the open window to enjoy them;and hear only the voice of the summer wind.Like black hulks, the shadows of the great trees ride at anchor on the billowy see of grass.I cannot see the red and blue flowers, but I know that they are there.Far away in the meadow gleams the silver Charles①.The tramp of horses’ hoofs sounds from the wooden bridge.Then all is still save the continuous wind of the summer night.Sometimes I know not if it be the wind or the sounds of the neighboring sea.The village clock strikes;and I feel that I am not alone.How different it is in the city!It is late, and the crowd is gone.You step out upon the balcony, and lie in the very bosom of the cool, dewy night as if you folded her garments about you.Beneath lies the public walk with trees, like a fathomless, black gulf, into whose silent darkness the spirit plunges, and floats away some beloved spirit clasped in its embrace.The lamps are still burning up and down the long street.People go by with grotesque shadows, now foreshortened, and now lengthening away into the darkness and vanishing, while a new one springs up behind the walker, and seems to pass him revolving like the sail of a windmill.The iron gates of the park shut with a jangling clang.There are footsteps and loud voices;—a tumult;—a drunken brawl;—an alarm of fire;—then silence again.And now at length the city is asleep, and we can see the night.The belated moon looks over the roofs, and finds no one to welcome her.The moonlight is broken.It lies here and there in the squares, and the opening of the streets—angular like blocks of whit e marble.By Nathanial Hawthorne

①the Charles: 美国马萨诸塞州的一条河流

5．The Road Not Taken

By Robert Frost

Two roads diverged in a yellow wood,And sorry I could not travel both

And be one traveler, long I stood

And looked down one as far as I could

To where it bent in the undergrowth;

Then took the other, as just as fair,And having perhaps the better claim,Because it was grassy and wanted wear;

Though as for that the passing there

Had worn them really about the same,And both that morning equally lay

In leaves no step had trodden black.Oh, I kept the first for another day!

Yet knowing how way leads on to way,I doubted if I should ever come back.I shall be telling this with a sigh

Somewhere ages and ages hence:

Two roads diverged in a wood, and I –

I took the one less traveled by,And that has made all the difference.6．Smile of the Earth

All over my garden I’ve planted nothing but roses, fragrant and---If looked at from afar---ablaze with colour like sunset clouds.I would be very happy if any one of my visiting friends should desire to pick and take some for their homes.I trust that any friend of mine carrying the roses would vanish into the distance feeling that his emotion had been rekindled.A close friend came for a visit the other day.I know her to be a lover of flowers and plants, and for that reason I told her at her departure that she should pick a bunch of roses to decorate her boudoir.I promised that the scent of the roses would be wafted far, far away.That girl friend of mine, tiptoeing into the garden in high spirits, sniffed here and smelt there, but in the end she didn’t pick a single rose.I said there were so many of them that she could pick as many as she’d like to;I told her that I was not a florist and didn’t make a living out of them.While

saying so I raised the scissors for the sacrifice of the flowers, but she vehemently stopped me, crying no, no, no!

To cut such beautiful roses would hurt one, she said.With her hands clutching at my sleeves, she told me that by no means should they be cut.Roses are the smiling face of the earth, and who could be so iron-hearted as to destroy a smile so exhilarating?

My mind was thoroughly boggled: the ugly earth, the humble earth, the plain earth---it is only because of the roses that it reveals an amazing and bright smile, and it is for the sake of that smile that it wins the care and pity of men.Of late a friend of mine invited me to appreciate a Tang Dynasty vase that he was fortunate enough to have bought at an auction.The vase, with its slim neck, plump body, and fine little flowers on a blue and white background, has a noble shape and a rich colouring, elegant, refined, proud, poised, and supercilious, an extreme embodiment of the prosperity of the Tang Dynasty.I was filled with wonder to think that while everyone present was taking great care not to cause the slightest damage to the Tang treasure, it was to me nothing but an object made of clay.It had only become a piece of classic art after being baked in a china kiln.Both the exquisiteness of the boccaro teapots made in south China, and the shockingly beautiful sculptures by Clay Sculptor Zhang of Tianjin---aren’t they all smiles of the earth? They are such exquisite treasures that---even if they look ugly, humble, plain, or whatever---they no doubt deserve respect and veneration.Now I understand that no-one, however ordinary, should be condemned to anonymity, and that anyone who adds a dash of colour to life deserves our respect.7．Home

What makes a home? Love and sympathy and confidence.It is a place where kindly affections exist among all the members of the family.The parents take good care of their children, and the children are interested in the activities of their parents.Thus all of them are bound together by affection, and they find their home to be the cheeriest place in the world.A home without love is no more a home than a body without a soul is a man.Every civilized person is a social being.No one should live alone.A man may lead a successful and prosperous life, but prosperity alone can by no means insure happiness.Many great personages in the world history had deep affections for their homes.Your home may be poor and humble, but your duty lies there.You should try to make it cheerful and comfortable.The greater the difficulties, the richer will be your reward.A home is more than a family dwelling.It is a school in which people are trained for citizenship.A man will not render good service to his country if he can do nothing good for his home;for in proportion as he loves his home, will he love his country.The home is the birthplace of true

patriotism.It is the secret of social welfare and national greatness.It is the basis and origin of civilization.8． Choice of Companions

A good companion is better than a fortune, for a fortune cannot purchase those elements of character which make companionship a blessing.The best companion is one who is wiser and better than ourselves, for we are inspired by his wisdom and virtue to nobler deeds.“Keep good company, and you shall be one of the number,” said George Herbert.“A man is know by the company he keeps.” Character makes character in the associations of life faster than anything else.This fact makes the choice of companions in early life more important even than that of teachers and guardians.Companionship is education, good or bad;it develops manhood or womanhood, high or low;it lifts the soul upward or drags it downward;it ministers to virtue or vice.Sow virtue, and the harvest will be virtue.Sow vice, and the harvest will be vice.Good companions help us to sow virtue;evil companions help us to sow vice.—William Makepeace Thayer

9． Electricity

The modern age is an age of electricity.People are so used to electric lights, radio, televisions, and telephones that it is hard to imagine what life would be like without them.When there is a power failure, people grope about in flickering candlelight, cars hesitate in the streets because there are no traffic lights to guide them, and food spoils in silent refrigerators.Yet, people began to understand how electricity works only a little more than two centuries ago.Nature has apparently been experimenting in this field for million of years.Scientists are discovering more and more that the living world may hold many interesting secrets of electricity that could benefit humanity.All living cell send out tiny pulses of electricity.As the heart beats, it sends out pulses of record;they form an electrocardiogram, which a doctor can study to determine how well the heart is working.The brain, too, sends out brain waves of electricity, which can be recorded in an electroencephalogram.The electric currents generated by most living cells are extremely small – often so small that sensitive instruments are needed to record them.But in some animals, certain muscle cells have become so specialized as electrical generators that they do not work as muscle cells at all.When large numbers of these cell are linked together, the effects can be astonishing.The electric eel is an amazing storage battery.It can seed a jolt of as much as eight hundred volts of electricity through the water in which it live.(An electric house current is only one hundred twenty volts.)As many as four-fifths of all the cells in the electric eel’s body are specialized for generating electricity, and the strength of the shock it can deliver corresponds roughly to length of its body.10．Scientific Theories

In science, a theory is a reasonable explanation of observed events that are related.A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced.A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed.After a theory has been publicized, scientists design experiments to test the theory.If observations confirm the scientist’s predictions, the theory is supported.If observations do not confirm the predictions, the scientists must search further.There may be a fault in the experiment, or the theory may have to be revised or rejected.Science involves imagination and creative thinking as well as collecting information and performing experiments.Facts by themselves are not science.As the mathematician Jules Henri Poincare said, ―Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house.‖

Most scientists start an investigation by finding out what other scientists have learned about a particular problem.After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination.Possible solutions to the problem are formulated.These possible solutions are called hypotheses.

第四篇：简洁地道的英语口语句子,值得背诵之四

1.We’re all for it!

我们都赞成!

2.Just because.没有别的原因。

3.It isn't the way I hoped it would be.这不是我所盼望的。

4.I won't buy you story.我不信你那一套。

5.The picture flattered her.她比较上照。

6.You don't know what you are talking about.你在胡说八道。

7.That's all I want to hear.我已经听够了。

8.I wish I could bring you to see my point.你要我怎么说你才能明白呢。

9.If you think he is a good man, think again.如果你认为他是好人，那你就大错特错了。

10.Traditionally, Italian presidents have been seen and not heard.这个总统有名无权。

11.Don't take it to heart.别往心里去

12.We'd better be off.我们该走了

13.If there's anything you'd like to know, don't hesitate to ask.如果想要了解什么，尽管问吧。

14.If I can do anything for you, please don't hesitate to let me know.如果我能为你做些什么，尽管说好了。

15.I'm glad to be of help to you.我很高兴能对你有所帮助.16.God works.上帝的安排。

17.Don't flatter me.过奖了。

18.Does it serve your purpose？对你有用吗？

19.Do you understand what I’m getting at? 你明白我想说什么了嘛？

20.I have seen worse

我见过更糟的。

第五篇：高中英语写作优美句子背诵(林素芬)

高中英语必备句子集选

1.As the old saying goes, each contribution –no matter how small-can help make a difference.