脊椎动物中小学PPT教学课件

results caused by them water, 3 poor
, air pollution
3 The 4 responsibilities Poverty s, awnairta, vtiolnence ,do whatever to help ,
Of the richer countries Prosper ,sustainable development
4 How to save the earth
Understand ,existing serious problem ,
5 take actio,nchanging how we live
… Understanding of the Students ,learning more , earth issues, better
幼体水中生活，用鳃呼吸 成体陆上生活，用肺呼吸 有四肢
代表动物：青蛙、蟾蜍、大鲵、蝾螈等
爬行类 鳄 鱼
恐 龙
蜥 蜴
3、爬行类的特征
表皮干燥，呈鳞片状 在陆地上产卵，卵生
代表动物：蛇、龟、鳖、鳄鱼、恐龙等
鸟类
白 鹭
鸡 企 鹅
4、鸟类的特征
体表长有光泽的羽毛 体温恒定 卵生
代表动物：鸟、鸡、鸭、鹅、丹顶鹤、孔雀等
6
Environment and their Understanding of environment, willingness to
6 willingnessto act are act, what to do to help
important
One of the solutions to Key to future , build a better society ,
2. What’s the purpose of the first Earth Summit? 3. Where was the 2002 Earth Summit held?
4. What’s the main theme of this Earth Summit?
1.When and where was the first Earth Summit held?
By Ivyriver 2006.9.27
What problems is the earth facing?
air pollution
water pollution noise pollution
aids
problems the earth is facing: white pollution
(rubbish)
poverty
overpopulation
war &violence soil erosion
What can we do to help the earth solve the problems it’s facing?
In order to help the earth, the United Nations held a meeting to discuss the problems.
哺乳类
河
豹
马
猩
猪
猩
5、哺乳类的特征
体表有毛 胎生，用母乳哺育幼儿 体温恒定
代表动物：人、猩猩、马、牛、羊、白鳍豚、 鲸、熊猫、鸭嘴兽、刺猬等
特征
鱼 类 生活在水中（用鳃呼吸），无四肢，用
低 级
鳍划水，有鳞片，在水中产卵
两栖类 幼体水中生活，用鳃呼吸，成体陆上生 活，用肺呼吸，有四肢
爬行类 表皮干燥，呈鳞片状，在陆地上产卵， 卵生
Question:
What’s the name of the meeting?
The Earth Summit.
Saemarthpsulmemoitutline
Introduction Body
Give more detailed information about
the problems
Conclusion
鸟类 体表长有光泽的羽毛，体温恒定，卵生
高wenku.baidu.com
级 哺乳类 体表有毛，胎生，用母乳哺育幼儿，体 温恒定
你最喜欢的动物是什么？
脊 有体毛，胎生：哺乳类 椎 动 物 无体毛，卵生 有羽毛：鸟类
无羽毛
皮肤干燥：爬行类
既可水生又可陆生：两栖类 皮肤湿润：
水生：鱼类
体现了 “逐级分类”的分类 特征
Unit 9 Saving the earth
二、脊 椎 动 物
二、脊 椎 动 物（有脊椎骨）
鱼类 两栖类 爬行类 鸟类 哺乳类
特征 代表动物
鱼类
黄
鲤
到
鱼
吊
鲨
银 鲳
鱼
鱼类
鳍 鳃
1、鱼类的特征：
生活在水中（用鳃呼吸） 无四肢，用鳍划水 有鳞片
代表动物：带鱼、黄鱼、草鱼、鳙鱼、 青鱼、鲢鱼、金鱼等
两栖类
蟾
蝌
蜍
蚪
大 鲵 蝾 螈
两栖类
2、两栖类的特征
In 1972 in Stockholm, Sweden.
2. What’s the purpose of the first Earth Summit?
the problems ---
7 7 education
8 in harmony nature , put an end to , dewatihth&suffering , caused by the big three …
Read Para.1:
1.When and where was the first Earth Summit held?
1972 & 2002 Earth Summits facing our planet, progress made ,one of the
theme2 sustainable
2 The big three and the
Three bidggeevsetlokpillmerse,nctontaminated drinking
Introduce the Earth Summit to the readers.
ParPa a. r1a.1
Para.2 Para.3 Para.4 Para.5 Para.6
Para.7
importance
What we can do
Para
Main idea
Key words
1 A 1 Brief introductioton Take better care of the earth, problems