今天我来为大家介绍一下梧桐树
梧桐树,即“中国梧桐”,是梧桐科梧桐属的植物,别名青桐、桐麻,也属落叶大乔木,一般高达15米;树干挺直,树皮绿色,平滑。原产中国,南北各省都有栽培,也为普通的行道树及庭园绿化观赏树。我们所说的法国梧桐其实是悬铃木中的一种。
梧桐树的叶子极似枫树叶,甚至连脉络都一样。梧桐树的叶子会变色哦!春天的时候,叶子是嫩绿嫩绿的;一到秋天,叶子就会慢慢变黄。这是为什么了呢?原来在夏天时,树叶工作得很努力,可是,天气转凉后,它就停止了工作。树叶所制造的营养也就不能送到树枝和树干上,而沉淀在叶子里。树叶的叶绿素也会遭破坏,就和留在叶子里的养分或枯萎了的茶褐色混合,这样就变成各种美丽的颜色了所有的树叶中都含有绿色的叶绿素,树木利用叶绿素捕获光能并且在叶子中其他物质的帮助下把光能以糖等化学物质的形式存储起来。除叶绿素外,很多树叶中还含有黄色、橙色以及红色等其他一些色素。虽然这些色素不能像叶绿素一样进行光合作用,但是其中有一些能够把捕获的光能传递给叶绿素。在春天和夏天,叶绿素在叶子中的含量比其他色素要丰富得多,所以叶子呈现出叶绿素的绿色,而看不出其他色素的颜色。当秋天到来时,白天缩短而夜晚延长,这使树木开始落叶。在落叶之前,树木不再像春天和夏天寻样制造大量的叶绿素,并且已有的色素,比如叶绿素,也会逐渐分解。这样,随着叶绿素含量的逐渐减少,其他色素的颜色就会在叶面上渐渐显现出来,于是树叶就呈现出黄、红等颜色。
梧桐树的价值也很大哟。梧桐树为栽培于庭园的观赏树木。木材轻软,为制木匣和乐器的良材。种子炒熟可食用或榨油,油为不干性油。根皮、茎、叶、花、果和种子均可药用,治腹泻、疝气、须发早白,有清热解毒的功效。树皮的纤维洁白,可用以造纸和编绳等。木材刨片可浸出粘液,称刨花,润发。
梧桐子是梧桐树的种子。秋末至冬初采收,除去杂质,晒干。干燥种子,圆球形或类圆形,径6~8mm,黄棕色至深棕色,表面皱缩成网纹状。外层种皮较脆,易破裂,内层种皮坚韧。除去后,内有肥厚的淡黄色胚乳;子叶两片薄而大,紧贴在胚乳上,胚根位于较狭的一端。气、味均微。以个大、饱满、棕色、无杂质者为佳。陶隐居云:“桐树有四种,青桐叶皮青似梧而无子。梧桐色白,叶似青桐而有子,子肥亦可食。”李时珍说:“梧桐处处有之。树似桐而皮青不皵,其木无节直生,理细而性紧。叶似桐而稍小,光滑有尖。其花细蕊,坠下如醭。其荚长三寸许,五片合成,老则裂开如箕,谓之藁鄂。其子缀于藁鄂上,多者五六,少或二三。子大如胡椒,其皮皱。其子,甘平无毒。”
梧桐树就是这样的哟。
瓷器是中国的特产,有的瑰丽;有的朴素;有的简约。但都透露出一股中国风。
从夏商周的灰陶、黑陶、红陶、彩陶、白陶、带釉硬陶开始,瓷器就是人们生活中不可缺少的一部分。这仅仅是瓷器发展的开始,到了隋朝时期,瓷器中的青瓷开始烧造,白瓷得到了很好的发展。而当历史的转轮,转向唐朝时,真正的瓷器出现了。这是陶与瓷的分水岭,因为在此之前的陶瓷质地脆弱,只能算作原瓷。
越窑和邢窑也是此时期出现的,在五代十国时期时期,越窑成为吴越王钱氏的御用器皿。并且在此阶段中,天青色出现,获得了「雨过天晴青」的美称。
到了宋朝,定窑、汝窑、官窑、哥窑、钧窑,形制优美,高雅凝重。其程度前无古人,后无来者。
明清两朝,瓷器更是花样百出,万历年间有名的五彩、斗彩、成为后世彩瓷发展的基础,甚至日本伊万里古瓷也是根据这时期的斗彩发展出来,「万历彩」也就在史上成名。同时又有红地黄彩、蓝地黄花、红地青花、黄地青花五彩、描红等等各式彩瓷。
但无论瓷器如何变化,他都是中华民族的一份骄傲!
大家都常吃桂圆,但你们了解它么?那就让我为大家作个介绍吧!
桂圆在小芽的时候仅有两三片叶子组成,需要几年才能长成大树。树的叶子是长卵形的。树木即葱郁又茂盛,简直是苍翠欲滴。它高有5。6米,不久就会长出小花,花的颜色是洁白的,其中还带着一总淡黄色,显得很淡雅,还有一股淡淡的清香。仔细观察桂圆,它的外皮是土黄色的。轻轻的剥开外皮,就会看到洁白,晶莹剔透的果肉,果肉里包着一棵紫红色的果核,好像一棵玛瑙,十分漂亮!
轻轻地咬一口,甘甜爽口,美味级了,让你吃了一颗还想下一颗。桂圆的营养很丰富,含葡萄糖,蔗糖。维生素A。B。B2。C等其他营养物质。对体制虚弱的人也有许多帮助呢!所以气色不好的应该多吃桂圆。
关于桂圆还有一个传说呢!很久以前蛟龙总要兴风作浪,桂圆与蛟龙大战三天三夜,斩蛟龙,挖出龙眼。县官来夺龙眼,桂圆寡不敌众,吞下一只龙眼,另一只“轰隆”炸裂。乡亲们将桂圆葬在村边。第二年,桂圆的坟上长出一种树,结出累累果实,果肉和果核就像龙的眼睛。为了纪念桂圆,人们将晒干的龙眼果叫“桂圆”。
大家听完我的介绍,知道桂圆对我们有益处了吧!回家我也要给爸爸妈妈做一碗桂圆汤,让爸爸妈妈重新焕发出青春的美丽。
A simple dcussion about Up
Pixar Animation Studios a superior about talking story at all times: Toy Story a story about deeply fraternal affection. Finding Nemo a story about a father’s introspection about h education road. The Incredibles a story about middle-aged man and wife’s life cr. Cars a story about moralities in physical education’s world by telling a star’s experiences. Ratatouille a story about a spirit that never gives up and you can realize your dream. Because of those wonderful cartoons, Pixar makes itself become an excellent symbol in cartoon sphere.
Therefore, Up worth being expected. And the truth that it’s a fantastic cartoon. To my mind, dream, commitment and responsibility the key of Up’s successful.
Children’s dreams are the easiest and the most romantic, on account of they always have deeply interest and passion for new things and strange world. But sometimes it’s difficult to realize their dreams by themselves; they usually need adults’ help. And those behaviors are not only their promes, but their commitments and responsibilities.
Russell and Carl’s relationship a key of Up. They have many differences: age, characters and background. And Up explains the relationship between adults and children by them.
Though Carl and Ellie’s love story just a few minutes, it impressive
and affecting. And it’s my favorite part in Up. Every man and wife wants to live a happy life, but true life usually makes it difficult to realize. But it doesn’t mean dream unpractical, prome untrue. Through Carl becomes unsociable and eccentric, he still remember h prome to Ellie. In my opinion, the thing which flies not the house, but a heart which brave and insts on its dream and prome.
And the adventurer, Charles a special role in Up. I think he stands for the people, who just care about their own benefit, totally forget social benefit and their roles in the society. There are so many kinds of dreams, so there are some persons make fame and wealth to be their goals. In fact, it reasonable, but it’s wrong to damage the social benefit. Th way of doing things terrible, shameful and lamentable. In the film, Charles forges sample at first, then kills many innocent men, and tries h best to get the animal, a kind of big bird. Everything he does for h own fame and wealth. The film has hit the right and wrong on the nose. In the final battle, empty-handed Charles fell down into a so deep cliff. It’s not only a punhment to him, but a satire to th kind of people.
Dream likes a check, prome likes an acceptance. Once you prome, you must try your best to make it come true for it your responsibility and duty.
与往年一样,感动中国总影响着千千万万中国人。在这些感动人物中有国之大器精英,也有百姓草根凡人,但却都以不同伟大事迹感动着这个名族人民。又是一年《感动中国十大人物》颁奖晚会,我内心再一次受到了激烈撞击与神圣洗礼,在感动与眼泪交织背后,我收获不仅仅是文字上朴实与感动,更多是内心中无法言喻那份震撼与动容。
作为幼儿园教师,我对感动中国中是教师职业感动人物也会有更多感触。莫振高就是一位打心眼里佩服和尊敬人物。他是学生口中“莫爸爸”“校长爸爸”,是广西都安高中原校长。都安是全国贫困县,这个大山里瑶乡,有着众多因贫困上不起学孩子。莫振高将“让瑶乡儿女走向世界”作为自己座右铭,任教三十多年来跑遍每一位贫困生家,将了解情况一一记录在册,并用自己微薄工资资助了近300名学生,圆了他们大学梦。然而,自己工资毕竟只是杯水车薪。面对数量众多贫困学生,这位从未向别人伸手“莫爸爸”走上了“化缘”之路。
他利用休息时间,来到全国各地机关、企事业单位,做演讲、做动员,只为通过社会力量,帮助更多瑶乡儿女走出大山。就这样,莫振高一共筹集了3000多万元善款,让1.8万贫困学子圆了大学梦。最后因积劳成疾,莫振高于3月9日突发心脏病去世。他“化缘”之路改变了数以万计贫困孩子命运。就是这样一位平凡老师用生命谱写出了人民教师关荣与伟大,让我们看到了国人一种从物质至上到精神至上转变。
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