Unit4How_life_began_on_the_earth 优秀公开课课件
中学英语-A3演示文稿设计与制作-教学课件-【微能力认证优秀作业】
Reading How Life Began On The Earth
Leading-in
This unit is about astronomy and how human beings first evolved on the earth and understand the universe around them.
(para 1—3)
Stage 2 : The development of life
(para 4—5)
Stage 1: The development of the earth
(1) After the Big Bang, what was the
earth like?
a cloud of dust
The universe began with a “Big Bang ”
• After the “Big Bang”, something happened to the earth.
Now let’s turn to passage 25
How Life Began On The Earth
We have only one earth! We should take care of the earth!
ks5u精品课件
WOnhleythiferwelicfearweiwll iclol nwteinhueelpo,n the eoanrltyhifdwepeehnedlsposnhahlul malal nbebseainvgesd.!
3.What about the life on land?
必修三Unit4Reading How Life Began on the Earth
B. 木星 Jupiter ______
C. 火星 ______ Mars D. 水星 Mercury ________
E. 海王星 Neptune _______
Pluto(冥王星)? a dwarf planet
1111
In our solar system eight planets circle around the sun.
The Solar System
In our solar system eight planets circle around the sun.
The Solar System
Can you name the eight planets?
Earth A. 地球 ______ Saturn F. 土星 ________ G. 天王星 Uranus _______ H. 金星 ________ Venus
solar energy
plant trees
B3 Unit 4 Reading：How life began on the earth
Warming up
Chinese Legends (传说)
Pangu separates the sky from the
earth.
His whole body then turns into all
Greenhouse effect
discussion
the earth may become too hot
putting too much carbon dioxide into the air
No life will be on the earth
As a student, what little things can we do for the earth?
Unit_4__How_Life_Began_On_The_Earth
oxygen Later, plants appeared, providing _________ for oceans and seas, in which some animals appeared. Then green plants began to grow on land, and land animals, forests, reptiles, and huge animals such as dinosaurs appeared. Dinosaurs’ disappearance _______________ made the rise of mammals possible. After human beings ________________, come into existence they put lots of carbon into the atmosphere, _____________ heat escaping from the earth into preventing space. As a result of it, life on earth is ____ ___________. in danger
Fill in the blanks according to Para.1 and Para.2
matter all directions. • The “Big Bang” that throw______in • After that, _____began to form and combine to atoms create stars and other bodies. • For several billion years after the “Big Bang”, the a cloud of dust earth was just _______________. • Between 4.5 and 3.8 billion years ago when the a solid globe dust settled into ______________. The earth exploded loudly with___________. fire and rock They were in time to produce__________________________ carbon, nitrogen, water vapour and other gases,which were to make the earth’s _________. atmosphere Then, as the earth cooled down, ______began to appear on its surface. water
how-life-began-on-the-earth
How a widely accepted theory tell ——how life began on the earth ?
Stage1:
How did the earth come into being?
The universe began with a Big Bang.
Nobody knows what caused the Big Bang. But it was the event that created our universe.
What did happened after the Big Bang？
1
Combine into
2
A cloud of dust
A solid ball 3
Cool down
4
A world full of water
Atmosphere
Stage2:
How did life develop on the earth?
土星 木星 海王星 天王星 金星
地球
水星
火星
• No one knows exactly how the earth began, as it happened so long ago.
• There are many religion and culture have its own ideas about how life began on the earth , do you know any of these stories?
In Chinese culture…
sky
earth
____________ Pangu 盘古 separates the sky from the earth.
人教高中英语Book 3 Unit 4 Astronomy reading ---How Life began on Earth教学课件 (共34张PPT)
1. What made up the earth’s atmosphere after the earth exploded? Carbon, nitrogen, water vapour and other gases.
2. What’s the significance of the presence of water on the earth? It allowed the earth to
Reading
Unit4 Reading
How Life onthe the Earth How lifeBegan began on earth
Startling by each step
An alien from another planet
Learning Aims 学习目标 1.To talk about the development of life 2. To understand the details about the passage and retell it using key words. 3.To know how to protect our earth.
Reflection
It’s time for you to look back in silence and think about what we’ve learnning
Fill in the blanks on the blackboard and check if you have mastered the main idea of the text
Group Discussion
What problems are caused by human beings?
高中英语说课稿_unit4_How_life_began_on_the_earth
Unit 4 How Life Began On The Earth----说课人：王华一、教学背景的分析1、教材内容分析本单元的中心话题是“天文学”，内容涉及太阳系、地球上的生命起源、宇宙大爆炸、月球探秘、黑洞效应等，主要内容围绕地球上生命的起源展开的。
本次阅读课“HowLife Began On The Earth ”通过对宇宙大爆炸理论进行科学性分析，推断出地球上生命的由来以及生物进化的过程。
2、学生背景分析“ How Life Began On The Earth 这一”话题虽然有趣，但本文的文体属于科普类说明文，内容抽象，用词多专业术语，阅读本文对高一学生来说有一定的难度。
不过本文以时间为线索，使得学生较易读懂本文的内容。
通过对本文的阅读，学生不仅可以了解地球上生命的起源以及发展过程，还可以掌握一些相关的语言知识。
二、教学目标的分析1.知识目标：（1）让学生在阅读中学到一些有用的单词和句子。
（2）让学生了解生命的起源。
2.能力目标：（1）提高学生的阅读技巧：略读，细读和对本文组织结构的分析（2）拓展学生对地球上生物进化的知识。
3.情感目标：（1）培养学生对科学的兴趣并激起学生对天文学的喜爱。
（2）调动和加强学生的环保意识。
三、重点难点的分析重点：激发学生学习兴趣，使学生完成阅读任务，理解文章内容。
难点：使学生通过播放录音及略读获取文章信息。
四、教法和学法的选择1、教学方法（1.）使用任务型教学与 PWP 教学法，让学生明确学习目标。
（2.）设计问答活动来检查学生对本文的了解。
（3.）让学生在讨论中学会合作学习。
（4.）分别利用个人、同桌和小组活动来完成学习任务。
2.学法（1.）合作学习 : 采用小组合作和组间交流等活动形式。
（2.）自主探究法 : 以学生为主体，培养学生自主探求问题的能力，主要通过相关图片、问题激活学生固有背景知识，使其自主分析、归纳、解决问题。
五、教学过程Step I Leading-in (1mins)Free talk with Ss:what is the end of the“world ”?What is the beginning of the“world ”?设计意图：以脑筋急转弯的形式引发本课的话题Step II Pre-reading (3mins)11.Each religion and culture has its own ideas about how life began on earth. What do you know?2.Are they true for the beginning of the life? Do you know what a scientific idea is?3.Read the title and look at the pictures. Can you predict what the reading will be about?设计意图：进一步激发学生的学习兴趣，激活其已有的知识，贴近了学生生活，又可以让学生对新单元的内容产生一种期待和渴望，使学生在心理上和认知上做好准备，激发他们对课文的学习兴趣并进行积极思考，从而培养其创造性的思维能力。
Unit_4_How_Life_Began_on_the_Earth_Language_points分析
He grows flowers as well as vegetables. 他既种菜也种花. “就远原则”： likes (like) rock music. He as well as I ______
15.They produced young generally by laying eggs.
12. … which encouraged the later development of early shellfish and all sorts of fish.
all sorts of =all kinds of 各种各样的
13.Others, called amphibians, were able to live on land as well as in the water. 另外一些叫作两栖动物,它们既能在活水里生 存也能在陆地上生. A as well as B表示“(除B之外)A也; 既B又 A”. 如: I’m learning French as well as English. 我学英语之外还学法语.
9. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. 1) allow … to do …= permit …to do… 2) harmful adj. harmless harm n./v. be harmful to sb./sth. = do harm to sb. /sth.=do sb/sth harm 对…有害
人教版高中英语必修三第四单元How Life Began On The Earth-课件 30页PPT文档
As a student, what little things can we do for the earth?
Suggested Answers: control the population Plant more trees Stop littering Develop clean energy Go to work by bus rather than by
2. What made up(构成) the earth’s atmosphere after the earth exploded? Carbon dioxide, nitrogen, water vapour and other gases.
3. Why is water so important for the beginning of life? Because water allowed the earth to dissolve harmful gases and acids into oceans and seas.
• Good morning/afternoon, I am Dr…. I’m greatly honored to be here to give you a speech about the development of li
Summary
How life began on the earth “Big Bang”
Linkin Park — What I've done
What will happen when we put too much CO2 into the atmosphere? greenhouse effect global warming
unit-4-astronomy-How-life-began-on-the-earth
Test your common knowledge:
1. Who is the first Chinese astronaut to go into
Yang liwei space? ___________ 2. What was the date when he circled the earth in space? A) November 15, 2003 B) October 15, 2003 C) September 17, 2004 D) December 17, 2004 3. Which country first sent people up to the space, the USA or the Soviet Union? 4. So far, how many countries have succeed in three sending people up to space? _______
2) What’s the significance of the presence of water on the earth?
It allowed the earth to dissolve harmful gases into oceans and seas.
significance --- significant (adj.) harmful --- harm (n.)/ (v.) do harm to
• 1) Dinosaurs died out long before human
back beings developed on the earth . • 2) Because they have larger brains than any back other creatures on the earth so far. • 3) Yes. If so, the earth will be so hot that no life will exist（存在）on the earth any more. To solve this problem, people should protect the earth carefully, they must stop putting too much carbon dioxide into the air , reduce pollution, control the population and so on .
how-life-began-on-the-earth-公开课PPT课件
the earth’s atmosphere
.
14
(4) What appeared after the earth cooled down?
Water appeared on its surface which is
important for the beginning of life on
the earth.
.
8
Para.1 The importance of water for life
Para.2 A theory about how the universe was formed
Para.3 Para.4
The formation(形成） of the earth
Part1: The development of the earth The arrival of humans and their effects on the earth
Unit 4 Astronomy: the science of the stars
.
1
We live on the same planet — the earth
.
2
1. Do you know the origin of life on earth?
2. Each religion or culture has its own ideas about how life began on earth.
were to make? (4) What appeared after the earth cooled
down? (5) What did the water do?
.
11
(1) After the Big Bang, what happened?
沪教版(2024)七年级上册Unit 4 The Earth分课时教案(共6课时).doc
Unit 4 The Earth一、单元教学目标学习本单元后，学生能够：1.了解一些关于地球的神奇事实和目前存在的环境问题。
2.用there be句型描述和提问有关地球环境的事实和存在的问题。
3. 用网帖的形式完成一份关于如何保护地球的报告并说明保护地球的方法。
4. 学习环境保护的成功案例，以小组合作的形式制作关于如何保护地球的事实档案，并在班级进行展示。
二、课时安排5 Focusing on culture (pp.62–63) 通过一个真实的改变环境的成功案例，引导学生思考环境保护的重要意义，深化环境保护的意识。
泛读课6 Project (p. 65)在本课时中，教师通过引导学生开展关于环境保护的项目任务，结合本单元所学的知识，鼓励学生在解决实际环境问题、保护环境中做出自己的贡献。
综合课三、分课时教学设计第一课时（Period 1）教学内容First thoughts (p. 51)，Reading (pp. 52–53)， Reading comprehension (p. 54), Vocabulary practice (p. 55) 主要语篇 The amazing planet教学目标 通过本课的学习，学生能够：1. 通过阅读一篇介绍地球的科普文章，了解我们美丽的地球家园。
2. 通过找出主题句、归纳关键词来归纳段落大意。
3. 学习掌握描述地貌、气候、生物的表达方式，在阅读过程中接触there be 句型的用法，为语法学习做好准备。
教学重点 通过找出主题句、关键词来归纳段落大意，并理清文本的脉络。
教学难点学习掌握描述地貌、气候、生物的多种表达方法。
【单元课前预习】1. 让学生思考以下内容，并在方框中写下答案。
2. 鼓励学生在课前思考以下问题，并在课前预习单上写下简单的回答，到课上进行讨论。
(1) What amazing facts do you know about the Earth?(2) Why is it important to protect the Earth?Amazing facts about the EarthWhy the Earth is important Problems theEarth is facingWays to protect the Earth3. 教师把学生分成小组，给每组一个关键词，如“地球的独特位置”“地球的组成部分”“地球的环境特征”“地球的生物多样性”等，让每个小组查找相关资料，探究地球为什么如此神奇，并鼓励学生制作简单的PPT，在课堂上进行小组汇报。
人教版高中英语必修三unit4-reading(公开课)
If you want to
⑦
know more, please⑤
turn to Page 25
7
第七页，共26页。
PPrree-readingg
Look at title and the pictures. Can you get some information about what we will learn from the text ?
people and factories from polluting the environment.
Secondly, everyone should realize the importance of the problem and try their best to protect the environment and fight against pollution. Besides,
22
第二十二页，共26页。
Sample
The earth we live in is becoming more and more terrible, so we must take measures to deal with it
Firstly:
Secondly:
Thirdly:
We hope the environment will become more and more beautiful.
it’s a good ideas to plant trees to improve the environment.
We hope our earth will become more and more beautiful.
24
第二十四页，共26页。
Unit4How-life-began-on-the-earth-优秀公开课课件
类） 7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups .
1.insects
2.plants 3.reptiles（爬行类） 4.shellfish（贝类）
5.fish 6.amphibians（两栖
类） 7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups .
5.___a_m__p_h_i_b_ia_n_s_(on land and in water) 7.__r_e_p_ti_l_es__(on land)
6. forests
8. dinosaurs (on land) 9.__m_a_m__m_a_l_s(on land)
Questions:
1) How did water come into being on the earth?(Para.2)(2) The explosion of the earth produced water vapour, which turned into water when the earth cooled down.
Para.2
1. What is the original earth’s atmosphere made up of?
carbon, nitrogen, water vapour, and other gases
howlifebeganontheearth公开课课件
01
03
在这个过程中，有机物的形态和性质可能发生变化， 但其基本元素（如碳、氢、氧、氮等）在生态系统中
不断循环。
04
生产者（如植物）合成有机物，消费者（如动物）通 过摄食获取有机物，分解者（如细菌和真菌）将有机 物分解为无机物供生产者再利用。
04 从无机到有机：生命前化学演化过程
CHAPTER
能量来源及转化机制
氨基酸 组成蛋白质的基本单元
可通过转氨基作用生成其他氨基酸
氨基酸、核苷酸等关键有机物质
• 在生物体内发挥重要生理功能，如合成组织蛋白、酶、激 素等
氨基酸、核苷酸等关键有机物质
01
核苷酸
02
03
04
组成核酸（DNA和RNA）的 基本单元
在生物体内参与遗传信息的存 储、传递和表达
可作为辅酶参与多种代谢反应
多细胞生物出现
约10亿年前，多细胞生物开始 出现，包括植物、动物和真菌 等。
前寒武纪时期
约40亿年前，地球形成后不久 ，大气中逐渐出现简单的有机 物质。
真核生物出现
约20亿年前，真核生物（如藻 类）开始出现，标志着生物多 样性的增加。
寒武纪生命大爆发
约5.4亿年前，寒武纪时期出 现了大量新的生物种类，生物 多样性迅速增加。
howlifebeganontheearth公 开课课件
汇报人：XX
2024-01-24
目录
CONTENTS
• 地球生命起源概述 • 地球早期环境分析 • 生命物质基础：有机化合物 • 从无机到有机：生命前化学演化过程 • 细胞结构出现与遗传信息传递机制建立 • 多细胞生物崛起和生物多样性形成原因探讨 • 总结回顾与未来展望
遗传多样性
人教课标版必修3 Unit 4 How life began on the earth教学设计
人教课标版必修3 Unit 4 How life began on the earth教学设计How life began on the earth讲述了地球上生命的起源，文章最后讲述的现象发人深省：The earth may become too hot to live on.它关系到地球上生命的未来。
授课对象是高一“神州班”的学生，全班学生英语基础较好，有较好的听说能力和极强的表演欲。
英语课上他们很积极主动，善于思考，对许多问题都有自己独到的见解，并且善于表达自己的思想。
本课的话题他们还是比较感兴趣。
二、教学目标：1. Get the students to perform the development of life on the earth.2. Let the students know the important of protecting our earth.3. Enable the students to talk about how to protect the earth.三、教学重点和难点：1. Improve the students?蒺 reading skills like skimming, scanning & summarizing.2. Get the students to think creatively and actively.3. Help the students to understand the order of development of life.四、教学策略：1．教学安排：（1）本节课由英语教师及3位学生老师（杨卓、杨宇霞、韩月）引导全班学生学习。
（2）每位（学生）老师负责不同的环节。
环节一：课文理解。
环节二：表演。
环节三：竞赛。
环节四：欣赏世博会主题曲Better city, Better life。
2．课前预习要求：（1）熟读生单词，预习课文。
(完整版)高一英语人教版必修三Unit4课文内容
Unit 4 Astronomy: the science of the starsHOW LIFE BEGAN ON THE EARTHNo one knows exactly how the earth began, as it happened so long ago. However, according to a widely accepted theory, the universe began with a “Big Bang ”that threw matter in all directions.After that, atoms began to form and combine to create stars and other bodies.For several billion years after the “Big Bang ”, the earth was still just a cloud of dust. What it wasto become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so violent that it was not clear whether the shape would last or not. It exploded loudly with fire and rock. They were in time to produce carbon dioxide, nitrogen, water vapour and other gases, which were to make the earth’s atmosphere. What is even more important is that as the earth cooled down, water began to appear on its surface.Water had also appeared on other planets like Mars but, unlike the earth, it had disappeared later. It was not immediately obvious that water was to be fundamental to the development of life. What many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas. This produced a chain reaction, which made it possible for life to develop.Many millions of years later, the first extremely small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with oxygen, which encouraged the later development of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians, were able to live on land as well as in the water. Later when the plants grew into forests, reptiles appeared for the first time. They produced young generally by laying eggs. After that, some huge animals, called dinosaurs, developed. They laid eggs too and existed on the earth for more than140 million years. However, 65 million years ago the age of the dinosaurs ended. Why they suddenly disappeared still remains a mystery. This disappearance made possible the rise of mammals on the earth. These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.Finally about 2.6 million years ago some small clever animals, now with hands and feet, appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. As a result of this, many scientists believe the earth may become too hot to live on. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.A VISIT TO THE MOONLast month I was lucky enough to have a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship!Before we left, Li Yanping explained to me that the force of gravity would change three timeson our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull ofthe earth ’s gravity. It was so hard that we could not say anything to each other. Graduallythe weight lessened and I was able to talk to him. “Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to the ground. ”I asked. “We are too far from theearth now to feel its pull, ”he explained, “so we feel as if no gravity at all. When we get closer tothe moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s.”I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth become smaller and the moon larger.When we got there, I wanted to explore immediately. “Come on, ”I said. “If you are right, my weight will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!”I laughed and climbed down the steps from the spaceship. But when I tried to step forward. I found I was carried twice as far as on the earth and fell over. “Oh dear,”I cried, “walking does need a bit of practice now that gravity has changed. ”After a while I got the hang of it and we began to enjoy ourselves.Leaving the moon ’s gravity was not as painful as leaving the earth ’s. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased. Again we were pushed hard into our seats as we came back to land. “That was very exhausting but very exciting too,”I said.“Now I know much more about gravity!Do you think we could visit some stars next time? ”“Of course,”he smiled, “which star would you like to go to? ”。
Unit-4-Astronomy-the-science-of-the-stars公开课课件
→ llaanndd
insects and amphibians appear
→ → rreepttiilleessaappppeeaarr ddiinnoossaauurrss aappppeeaarr
→ mmaammmmaallssaappppeeaarr
1. Retell the passage according to the form.
水星 地球 Mercury Earth
木星
Jupiter
天王星 土星 Uranus Saturn
海王星 Nep. Each religion and culture has its own ideas about how life began on earth. What do you know? In China, we all know that Pangu separates the sky from the earth.
3. Why is it wrong in films and stories to show dinosaurs and people together?
Because dinosaurs died out long before human beings developed on the earth.
1. According to a widely accepted theory, how did the stars form?
The universe began with a “Big Bang” that threw matter in all directions, then atoms began to form and combine to create stars.
unit4 How Life Begin On the Earth知识点学案
Paragraph 11. No one knows exactly how the earth began, as it happened so long ago. 该句中how 引导________从句，as引导________ 从句，it指代_________,happened可用_________来代替，整个句子译为____________________________________________。
2. However, according to a widely acc epted theory,the universe began with a “Big Bang” that threw matter in all directions.1) according to “根据”；“按照”2) began with :start with 由…开始,以…开始3）in all directions的意思是______________。
以下是direction的其它短语，请牢记。
in the direction 朝…方向；在…方向in the direction of 朝…方向，向…方向under the direction of 在…的指导下give directions 指示sense of direction 方向感from the direction of来自…方向in sb’s direction 朝某人的方向under sb's direction 在某人的指导下3 After that,atoms began to form and combine to create stars and other bodies.请同学们自己回忆总结other / the other / another / the others / others的用法。
Paragraph 21. What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.该句中What引导________从句，when引导________ 从句，在句中_____语。
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the earth ______ down
cooled
water
Filling exercise(Para.4)(7) How life began on the earth water
plants in water 1.small ________ human beings 11.____________
Para.2
1. What is the originalearth源自s atmosphere made
up of?
carbon, nitrogen, water vapour, and other gases
Para.2
Fill in the blanks:
The origin of life on the earth is an interesting theory that question. It was a widely accepted ________ the universe began with a “Big Bang”, after a cloud of dust which the earth was _________________. Between 4.5 and 3.8 billion years ago it settled violent into a solid globe ______. The earth was very_______ and exploded loudly with fire and rock. they were in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earth’s atmosphere Then as the earth cooled down, _____________. water appeared.
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
类）
7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups . 1.insects
1.insects
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
类）
7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups . 1.insects
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
Human beings 类）
7.mammals(哺乳类)
Para.5
Use the sentence in the text to describe the picture: They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.
What’s the main idea for each Para? The development of plants and Para.1
animals on the earth
Para.2 Para.3
The importance of water for life The arrival of humans and their impact（影响） on the earth The formation(形成) of atmosphere and water on earth
Para.4 Para.5
A theory about how the universe began
Task3 Careful reading
Para.1
Judge True or False
To be honest, none of us knows how the earth began because it happened too long ago.
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
类）
7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups . 1.insects
Para.4
Look at the pictures and tell the groups .
1.insects 2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖类）
7.mammals(哺乳类)
Study of the groups of life Look at the pictures and tell the groups .
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
类）
7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups . 1.insects
shellfish and all sorts of fish 2._________ 3. green plants on land
10.small clever animals with hands and feet ______________
4. insects (on land) amphibians land and in water) 5._____________(on reptiles (on land) 7._________ 8. dinosaurs (on land) forests 6. mammals(on land) 9._________
2.plants
3.reptiles（爬行类）
4.shellfish（贝类）
5.fish
6.amphibians（两栖
类）
7.mammals(哺乳类)
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups . 1.insects
How life began on the earth
Saying 1
separated Pangu __________the sky from the earth.
盘古开天辟地
Saying 2
Nuwa mended the heaven and created _________human beings.
女娲补天
Saying 3
created God _________the world in seven days.
Saying 4
monkey The development of Human from________
Saying 5
Life was brought to the earth outer by ET from ______space.
Questions: 1) How did water come into being on the earth?(Para.2)(2) The explosion of the earth produced water vapour, which turned into water when the earth cooled down. 2) Why is important to have water on the earth?(Para.3)(2) It allowed the earth to dissolve harmful gases into oceans and seas.
True
Para.1
How did the Big Bang create the universe?
First of all , directions it _____ threw matter in all _________. After that , atoms began to ________. ______ form Then, stars atomscombined ______ to create _____and ___________ other bodies .
greenhouse effect
The earth may become too hot to live on .
Para.5
Summary
2.6 million years ago some Finally about____ small_______ clever animals__________, appeared but they put lots of carbon into the atmosphere, _____________ preventing heat escaping from the earth into space. As a result of it, life on earth is i____d___________. n anger