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1、,树木丛生，百草丰茂。 曹操观沧海 绿树村边合，青山郭外斜。 孟浩然过故人庄 碧玉妆成一树高，万条垂下绿丝绦。 贺知章咏柳,2 树之歌,初读课文,11,这首儿歌介绍了11种树木。,杨树,榕树,梧桐树,枫树,松树,柏树,木棉,桦树,银杏,水杉,金桂,yng sh,rng sh,w tng sh,fng sh,sng sh,bi sh,m min,hu sh,yn xng,shu shn,jn gu,这些树名里藏着许多生字，仔细观察，你有什么发现？,梧,桐,枫,松,柏,桦,杉,桂,你还知道哪些带有木字旁的形声字？,都是左右结构,这就是形声字。,都是木字旁,右边的字提示了它们的读音,w tng fn
2、g sng bi hu shn gu,字词积累,梧桐 手掌 枫树 松柏 装扮 桦树 耐寒 守约 北疆 银杏 水杉 化石 金桂 杨树 壮大 木棉,我会读,梧桐 手掌 枫树 松柏 装扮 桦树 耐寒 守约 北疆 银杏 水杉 化石 金桂 杨树 壮大 木棉,摘橙子,梧,守,桐,枫,耐,掌,松,疆,柏,装,桦,银,杉,化,桂,杨,桐,枫,松,壮,柏,杉,化,棉,桂,仔细观察，找出有共同特点的字。,我会写,杨 桐 枫 松 柏 棉 杉 桂,都是“木”字旁，与树木有关。,结构：,部首：,书写指导：,左右,左窄右宽，左高右低；横折折折钩要一笔写成，两撇间隔均匀，第二撇略长。,yn,杨,木,重难点字书写指导,结构：
3、,部首：,书写指导：,左右,亻,左窄右宽，左右等高；竖弯钩起笔于竖中线，与撇相交于田字格中心。,hu,化,自由读课文，读准字音。说一说，课文讲了哪些树，这些树各有什么特点？,杨树高，榕树壮，梧桐树叶像手掌。 枫树秋天叶儿红，松柏四季披绿装。 木棉喜暖在南方，桦树耐寒守北疆。 银杏水杉活化石，金桂开花满院香。,树之歌,11种树木,杨树高,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路
4、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路
5、,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,榕树壮,梧桐树叶像手掌,比喻,枫树秋天叶儿红,松柏四季披绿装,拟人,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状
6、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状
7、元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,松柏四季披绿装,木棉喜暖在南方,桦树耐寒守北疆,拟人,银杏水杉活化石,银杏、水杉为什么被称为活化石？,化石是没有生命的，可是，在生物界却存在着活的化石。原来在地质历史时期，许多动植物类群曾经繁盛
8、一时，后来由于自然环境发生变化，这些类群中的绝大多数种类都灭绝了，成了化石，剩下来的个别种类，只是在局部地域得以保持下来，一直活到今天。,银杏是古老的较原始的裸子植物。远在2.7亿年前石炭纪末期，银杏已开始生长，到侏罗纪时已处于极盛时期，遍布全球。到了白垩纪，地球上的气候发生巨变，适应性更强的被子植物出现，银杏就趋向衰退了。到了第四纪，由于气候巨变，冰川的侵袭，银杏在欧洲、北美洲全部绝了迹，亚洲大陆也濒于绝种。,水杉在白垩纪已经出现在地球上了，后来也曾广泛地分布在北半球。到了第四纪，在巨大的冰川影响下，它被毁灭了，成为化石植物，终于退出生物界的舞台。1941年，我国植物学工作者第一次在四川省万
9、县磨刀溪发现了一株奇树，后来又发现了更多的树木。经过研究鉴定，定名为水杉，是“活的化石”，成了20世纪植物学上的一项重大事件，轰动了世界。,金桂开花满院香,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,
10、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,
11、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,你想不想自己来介绍树木，编一句儿歌？可以说说树枝、树叶的形状，可以说说花开的样子、香味，也可以说说树木的习性。,柳树枝像_。,小辫儿,银杏叶儿像_。,小扇,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,
12、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,
13、状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,状元成才路,桃树花开_。,红艳艳,石榴花开像_。,喇叭,棕树_在南方。,喜暖,视频欣赏,保护树木,随堂练习,一、连一连。,w tn bin jin sn bi shu shn,水杉 边疆 梧桐 松柏,二、比一比，再组词。,壮（ ） 杉（ ） 状（ ） 林（ ）,强壮,奖状,杉树,树林,三、词语积累。
14、,枝繁叶茂 绿树成荫 遮天蔽日 郁郁葱葱 古木参天 亭亭如盖,课后习题参考答案,朗读课文。背诵课文。,朗读指导：本文是一首儿歌，描述十一种树木的特点，诗歌对仗工整，读起来朗朗上口，在读时要注意停顿和重读，怀着愉快的心情读出儿歌的韵味。 背诵指导：在熟读课文的基础上练习背诵。,读一读，记一记。,泡桐 白桦 云杉 翠柏 桂花 枫叶 松子 白果,老师指导：这些词语是文中生字组成的新词，同学们可以采用多种形式的读来识记、积累词语。,po,读一读，想想下面几句话的意思。,要使小树成为木材需要十年的时间，而培养一个人才需要一百年。指培养人才很不容易。,十年树木，百年树人。,树长得再高，落叶还是要回到树根。比喻离开故土时间再长，最终还是要回归故土。,树高百尺，叶落归根。,n,人应该有志向，这样生活才会有动力，有方向。,树无根不长，人无志不立。,课后作业,认准字音、字形，背诵课文。 你还知道哪些树木？试着编一编儿歌，说说它们的特点。,