笔筒树有哪些特征？
笔筒树形态特征：树形蕨类植物。茎直立，高可达10米，胸径10～15厘米，基部密被交织的不定根，向上有清晰的叶痕，顶部残存少量宿存的叶柄。叶螺旋状排列于茎顶端；茎端、拳卷叶及叶柄基部密被鳞片和糠秕状鳞毛；鳞片灰白色至淡棕色，线状披针形，渐尖头，先端和边缘具褐棕色刚毛；叶柄长40～50厘米，通常棕禾杆色，连同叶轴、羽轴具小瘤状突起，被白霜，在背面两侧各具一条不连续的淡绿色的气孔线，向上直达叶轴；叶片大，长矩圆形，长1.5～2.7米，宽0.6～0.8米，三回羽深裂；羽片16～22对，互生，基部一对缩短，长约35～40厘米，中部羽片长50～80厘米，宽20～26厘米，长矩圆形，二回羽状深裂；小羽片26～28对，互生，基部一对稍缩短，中部的长10～15厘米，宽1.5～2.2厘米，披针形，先端尾状渐尖，基部平截，无柄或具短柄，羽状深裂；裂片20～26对，稍斜展，下部几对裂片分离，以狭翅与小羽轴相连，中部的长1～1.3厘米，宽3～4毫米，镰状披针形，圆钝头，钱缘；叶脉在裂片上羽状分叉，基部下侧一组出自小羽轴；叶片厚纸质，上面绿色，下面灰绿色；羽轴、小羽轴上面有沟，被淡黄色弯曲毛；下面密被卵状至卵状披针形小鳞片和针状硬毛。孢子囊群生侧脉分叉处，具隔丝，囊托突起，囊群盖特化为简单的鳞毛状。
有关笔筒树
笔筒树又称蛇木、本贯众、山过猫心.木本状蕨类,常见於山区荫湿山野. 春夏时期嫩芽冒出,有人取其入菜,但其汁液稠黏,使人难以适应. 用途:有清热、散瘀、止血、解毒、杀虫作用,茎用於治血崩、便血、驱蛲虫等.嫩芽可消肿退癀. http://202.127.158.9/scripts/ccmpcgi.exe?_cfg=c:/InetPub/wwwroot/cbisdb/snjch/snjch.cfg
如何区分笔筒树与桫椤
武汉植物园景观温室的瀑布前面有一棵身形优美的笔筒树，可它常常被误认为是桫椤。笔筒树（Sphaeropteris lepifera）与桫椤（Alsophila spinulosa）都是桫椤科的植物，二者的羽状叶片都生长在茎干的顶端，好像一把撑开的大伞，并且都有着笔直的树干，总之它们的个头、身形都差不多，乍一望去着实长得很像，究竟该怎样区分呢？近身观察会发现，笔筒树的树干上有一圈圈的痕迹。原来笔筒树的老叶枯萎后会立即脱落，在树干上留下一个个的圆形叶痕，犹如蛇皮上的纹路，因此笔筒树又被称为“蛇木”。而桫椤枯萎的老叶并不马上脱落，依然挂在树干上，久而久之树干上挂满垂下的褐色老叶，如同披了件蓑衣，最后叶子落掉但叶柄依然残留，因此桫椤的树干上没有蛇纹样的叶痕。此外笔筒树叶柄的基部及新芽覆盖着棕色的鳞片，而桫椤的树干及新芽都是黑色，同时叶柄上长有小刺。掌握了上面几点，区分这两种树就不难了。其实像笔筒树和桫椤这种木本蕨类植物是古老蕨类家族的后裔，在恐龙时代随处可见、极为繁盛，如今这种树状蕨类植物面临濒危，极其珍贵，是我们应当珍惜的宝贵的绿色资产。笔筒树桫椤
dale carnegie的简介
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Dale Breckenridge Carnegie (originally Carnegey) (November 24, 1888–November 1, 1955) was an American writer and the developer of famous courses in self-improvement, salesmanship, corporate training, public speaking and interpersonal skills. Born in poverty on a farm in Missouri, he was the author of How to Win Friends and Influence People, first published in 1936, a massive bestseller that remains popular today. He also wrote a biography of Abraham Lincoln, titled Lincoln the Unknown, as well as several other books.
Carnegie was an early proponent of what is now called responsibility assumption, although this only appears minutely in his written work. One of the core ideas in his books is that it is possible to change other people’s behavior by changing one’s reaction to them.
Or
Born in 1888 in Buffalo, Missouri, Carnegie was a poor farmer’s boy, the second son of James William Carnagey and Amanda Elizabeth Harbison. In his teens, though still having to get up at 4 a.m. every day to milk his parents’ cows, he managed to get educated at the State Teacher’s College in Warrensburg. His first job after college was selling correspondence courses to ranchers; then he moved on to selling bacon, soap and lard for Armour & Company. He was successful to the point of making his sales territory, southern Omaha, the national leader for the firm.
After saving $500, Carnegie quit sales in 1911 in order to pursue a lifelong dream of becoming a Chautauqua lecturer. He ended up instead attending the American Academy of Dramatic Arts in New York, but found little success as an actor (though it is written that he played the role of Dr. Hartley in a road show of Polly of the Circus. When the production ended, he returned to New York, unemployed, nearly broke, and living at the YMCA on 125th Street. It was there that he got the idea to teach public speaking, and he persuaded the “Y” manager to allow him to instruct a class in return for 80% of the net proceeds. In his first session, he had run out of material; improvising, he suggested that students speak about “something that made them angry”, and discovered that the technique made speakers unafraid to address a public audience. From this 1912 debut, the Dale Carnegie Course evolved. Carnegie had tapped into the average American’s desire to have more self-confidence, and by 1914, he was earning $500 – the equivalent of nearly $10,000 now – every week.
Perhaps one of Carnegie’s most successful marketing moves was to change the spelling of his last name from “Carnegey” to Carnegie, at a time when Andrew Carnegie was a widely revered and recognized name. By 1916, Dale was able to rent Carnegie Hall itself for a lecture to a packed house. [Carnegie’s first collection of his writings was Public Speaking: a Practical Course for Business Men (1926), later entitled Public Speaking and Influencing Men in Business (1932). His crowning achievement, however, was when Simon & Schuster published How to Win Friends and Influence People. The book was a bestseller from its debut in 1937, in its 17th printing within a few months. By the time of Carnegie’s death, the book had sold five million copies in 31 languages, and there had been 450,000 graduates of his Dale Carnegie Institute
His first marriage ended in divorce in 1931. On November 5, 1944, in Tulsa, Oklahoma, he married Dorothy Price Vanderpool, who also had been divorced. Vanderpool had two daughters; Rosemary, from her first marriage, and Donna Dale from their marriage together.
Though it has been stated that Dale Carnegie died of uremia[7], it is widely rumored that he died at age 66 by committing suicide,[citation needed] the official biography from Dale Carnegie & Associates, Inc. states that he died of Hodgkin’s disease on November 1, 1955.[8] He was buried in the Belton, Cass County, Missouri cemetery
笔筒树是头吸水还是尾吸水??
应该是尾吸水吧!不知道哦!
TWININGS的介绍
twinngs是一类调和茶的通称,是以红茶为茶基,用佛手柑外皮的提取油调味而成的一种具有特殊香气和口味的调味茶.它是今天世界上最流行的红茶.这种调味茶的名字来源是曾担任过英国外交大臣和首相的格雷伯爵二世.
ningen是什么生物介绍
一种日本的人造生物,不过这个谣言已经被粉碎了的说…希望可以帮到您!
The Water is Wide的介绍
《The Water is Wide》是Trad作词、作曲,王力宏演唱的一首歌曲,收录于专辑《情敌贝多芬》中.
小说the chrysanthemums简介
The Chrysanthemums （1）——John Steinbeck)《菊花》
:《菊花》是约翰·斯坦贝克短篇小说中体现其卓越文学成就的一篇力作。本文从构成小说要素中的环
境、象征、人物等方面解读其女主人公———爱丽莎·艾伦的心理成长过程,探讨其蕴涵的女性主义思想。
关键词:菊花;象征;人物;女性主义
约翰·斯坦贝克( John . Steinbeck, 1902 ～
1968)是美国20世纪上半叶著名的小说家,他曾写过
不少短篇小说,《菊花》( the chrysanthemums) [ 1 ]便是
其中的一篇杰作。《菊花》的故事情节并不复杂,故
事发生在斯坦贝克的故乡———南加州的萨利纳斯峡
谷。女主人公爱丽莎·艾伦是一位能干的35岁的家
庭主妇,她十分擅长种菊花,和丈夫亨利一起过着一
种平淡如水的生活。但平淡的生活压制不了爱丽莎
内心充满的勇气和渴望,她向往外面的世界,渴望走
出峡谷去领略生活的风光。她的这种渴望在碰到一
位四处流浪,过着自由生活的补锅匠后变得更加强
烈。但故事的结局却是悲剧性的。爱丽莎送给补锅
匠的菊花被弃之路旁,她对男性世界彻底绝望,她的
梦想也随之破灭。小说开篇渲染的环境气氛,标题
《菊花》的象征意义以及斯坦贝克着力塑造的爱丽莎
的人物形象,都蕴涵着女性主义思想。正是这三方面
的共同作用,才推动了爱丽莎心理活动的发展,使其
女性身份由被界定到自我发现的完成。
小说Villette的简介
内容简介:
本书是夏洛蒂·勃朗特的最后一部作品，无论从创作思想或艺术手法上都比以前的作品更为成熟。本书的女主人公从许多方面来说，就是作者本人的真实写照，作者借本书展示了自己的主要经历，向世人倾诉自己的心声。
作者简介:
夏洛蒂·勃朗特1816年生于英国北部约克郡的豪渥斯的一个乡村牧师家庭。母亲早逝，八岁的夏洛蒂被送进一所专收神职人员孤女的慈善性机构——柯文桥女子寄宿学校。在那里，她的两个姐姐玛丽亚和伊丽莎白因染上肺病而先后死去。于是夏洛蒂和妹妹艾米利回到家乡，15岁时她进了伍勒小姐办的学校读书，几年后又在这个学校当教师。后来她曾作家庭教师，最终她投身于文学创作的道路。夏洛蒂·勃朗特有两个姐姐、两个妹妹和一个弟弟。两个妹妹，即艾米莉·勃朗特和安恩· 勃朗特，也是著名作家，因而在英国文学史上常有“勃朗特三姐妹”之称。
夏洛蒂·勃朗特虽然一生仅写了四部小说（即：《教师》、《简· 爱》、《谢利》和《维莱特》，其中《教师》在她去世后才出版），但她在文学史上却有着相当重要的地位。在她的小说中，最突出的主题就是女性要求独立自主的强烈愿望。这一主题可以说在她所有的小说中都顽强地表现出来，而将女性的呼声作为小说主题，这在她之前的英国文学史上是不曾有过的——她是表现这一主题的第一人。此外，她的小说还有一个特点，那就是人物和情节都与她自己的生活息息相关，因而具有浓厚的抒情色彩。女性主题加上抒情笔调，这是夏洛蒂·勃朗特创作的基本特色，也是她对后世英美作家的影响所在。后世作家在处理女性主题时，都不同程度地受到她的影响，尤其是关心女性自身命运问题的女作家，更是尊她为先驱，并把她的作品视为“现代女性小说”的楷模。