人教版高中英语book3 unit4 reading 公开课教学课件
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人教高中英语必修3Unit4reading(共24张PPT)
2.Finish Exercise 2 on the book
10 7 3 8 4 9 6 1 5 2 12 11
Summary How life began on the earth
“Big Bang”
Earth: a cloud of dust a solid globe
the earth’s atmosphere Water
●_R_e_p_t_i_le_s_ appeared and they laid eggs. ●Dinosaurs developed, laid eggs and _e_x_i_s_te_d_ for more
than 140 million years. ●Mammals rose and _g_a_v_e__b_ir_t_h_t_o_ babies.
Unit4 Reading HOW LIFE BEGAN ON THE EARTH
Learnig aims: 1. Read and find out how life began on the earth. 2. Practise and improve our reading skills. 3. Stimulate our interest in astronomical knowledge. Learning important points: 1. Read and understand the passage. 2. Practise and improve the reading skill. 3. Learn to cooperate with each other.
Between 4.5 and 3.8 billion years ago (para2&3)
人教高中英语必修3Unit4reading (共19张PPT)
The formation of the earth
For several billion years after the_“_B_i_g_B__a_n_g_”, the earth was just _a__c_l_o_u_d__o_f_d_u__s_t__. Between
4.5 and 3.8 billion years ago, the dust gradually
C. The formation(形成)of the earth
(4) para.4
D. The evolution(进化) of the plants and animals on the earth.
(5) para.5
E. The universe began with a “Big Bang”
The arrival of human and their effects on the earth.
Q: How does human affect the earth? They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth.
includes many different gases appeared. As the
earth cooled down, _w__a_t_e_r_ began to appear.
Para.3 The importance of water for life
Q: What did the continued presence of water allow the earth to do?
人教版高中英语必修3Unit4ReadingPPT课堂课件(58页)
Match the main idea with each paragraph.
Para. 1 Para. 2 Para. 3
Para. 4 Para. 5
A. The formation (形成) of the earth. B. The importance of water for life. C. A widely accepted theory about the formation of the universe. D. The arrival of humans and their impact on the earth. E. The development of plants and animals on the earth.
She was in a ___v_io_l_e_n_t temper(脾气) and began throwing things about. 【分析】 a. 此复合句的主句为The earth became so violent；从句为
i_n_s_e_c_ts_on land
a_m__p_h_ib__ia_n_s_on land and in the water
Stage 3: The development of life on land (1) What appeared next on land?
forests
(2) What was there after forests appeared?
The earth was just a cloud of dust after the“Big Bang”．The earth exploded
1. _l_o_u_d_l_y (loud) with fire and rock. They were in 2.__t_im__e to produce many things.
人教高中英语必修3Unit4 ReadingPPT课堂课件(15页)
2)That is the day( which/that ) he will never forget. 3)That is the day which/that must be remembered.
Injuring all of a man's ten fingers is not as effective as chopping off one
人教高中英语必修3Unit4 ReadingPPT课堂课件(15页)（ -精精品品PP）T课 件
人教高中英语必修3Unit4 ReadingPPT课堂课件(15页)（ -精精品品PP）T课 件
3. 1)That is the day when/ on which he went to college.
一.
Revision of
学习
the attributive clause
目标
1.Teaching aim.
Review, strengthen and make use of the attributive clause.
(复习，巩固和应用定语从句。）
2.Teaching emphasis.
How to find antecedents and how to choose relatives.
1. 1) He is the professor who/that is named Tom.
2) He is the professor whose name is Tom.
3)He is the professor the name of whom is Tom.
4) He is the professor of whom the name is Tom. 2. 1) This is the novel which/ thatwas read by you.
精选高中3Unit4reading (共33张PPT)公开PPT课件
In western countries:
___G_o_d__ created (创造) the world and all living things.
Study of the groups of life (生命的种类/物种) Look at the pictures and tell the groups .
What can we do to take care of the
earth?
solar energy
purify air
净化空气
plant trees
save water
recycle rubbish 回收垃圾
prevent desertification 防止沙漠化
Cherish(珍惜) and protect our earth!
became t_h_e__m_o_s_t_i_m_p__o_rt_a_n_t_a_n_i_m_a_l_s_on the planet. However , they are putting too much c_a_r_b_o_n__d_io_x_i_d_e__into t_h_e__a_tm__o_s_p_h_e_r_e , which prevent heat from escaping(逃离)from the earth into space. 2. The earth may become too _h_o_t_ to l_iv_e__o_n_. .
2. Plants began to grow on dry land.
3. forests
A.123 B. 132 C. 213
合作探究Put the right order of the development of life.
人教版高中英语Book 3 unit4 reading公开课教学课件 (共16张PPT)
( F ) 5. Plants appeared later than fish. ( T ) 6. Land animals came into being as green plants
began to grow on land.
( F ) 7. Scientists have found out why dinosaur
F
6. Which gas is the most important for life?
A. carbon dioxide (CO2 ) B. oxygen (O2) C. nitrogen (N2)
Skimming
True or False
( T ) 1. No one knows how the earth came into existence. ( T ) 2. Stars and other bodies were created after a ‘Big
1 Insects and amphibians appeared. 2 Dinosaurs appeared. 3 The earth became a solid ball. 4 Small plants grew on the water. 5 Reptiles appeared. 6 Plants began to grow on dry land. 7 The earth was a cloud of dust. 8 Water appeared on the earth. 9 Shellfish and other fish appeared. 10 The universe began with a “Big Bang”. 11 Clever animals with hands and feet appeared. 12 Mammals appeared.
人教高中英语必修3Unit4reading 课件(共17张PPT)
Because water allowed the earth to dissolve harmful gases and acids into the oceans and seas to ensure a following chain reaction, which made it possible for life to develop.
forms in the past?
1. What is the original earth’s atmosphere made up of?
carbon, nitrogen, water vapour, and other gases
2. Why did scientist believe water is fundamental to the development of life?
Post reading
After reading the passage, discuss the following questions.
1. Why was the earth different from the other planets?
Because the water remained on the earth.
Because dinosaurs died out long before human beings developed on the earth.
Post reading
After reading the passage, discuss the following questions.
4. There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of it? Do you know why they removed it?
forms in the past?
1. What is the original earth’s atmosphere made up of?
carbon, nitrogen, water vapour, and other gases
2. Why did scientist believe water is fundamental to the development of life?
Post reading
After reading the passage, discuss the following questions.
1. Why was the earth different from the other planets?
Because the water remained on the earth.
Because dinosaurs died out long before human beings developed on the earth.
Post reading
After reading the passage, discuss the following questions.
4. There used to be nine planets in the solar system. Recently scientists have decided that one of them can no longer be considered a planet. Do you know the name of it? Do you know why they removed it?
人教高中英语必修3Unit4reading(共16张PPT)
and seas with oxygen.This encouraged the 7.____________(develop) of early shellfish and nd animals such as insects,reptiles and
dinosaurs and so on appeared after green plants appeared. Small clever animals spread all over the
►Step One：Ask and Discussion
1．Do you know how many planets circle around the sun in our solar system? ____________________________________________ ____________________________________________
君子看人背后，小人背后看人。远离那些背后说别人坏话的人，请记住，他（她）能说别人坏话，就能在暗地说你坏话！这就是俗话说的， 不怕真小人，就怕伪君子！ 奋斗的双脚在踏碎自己的温床时，却开拓了一条创造之路。
ห้องสมุดไป่ตู้
III. CONSOLIDATION
Level A: Read the text carefully and fill in the
blanks. The earth was just a cloud of 1.____________(灰尘) after the “Big Bang”．The earth exploded loudly with fire and rock. They were in time to produce many things, 2._____________ were to make the earth’s atmosphere. As the earth 3. ____________ down,water began to appear 4. __________ its
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names with the planets?
Mercury 水星 Venus金星 Jupiter 木星 Saturn 土星 Uranus 天王星 Neptune
海王星
Earth 地球
Mars火星
Solar system
Scientists now think Pluto is too small to be called a planet.
Unit 4
Astronomy: the science of the stars
Step Ⅰ Warming up
1. Do you know how many planets circle around the sun in our solar system ? What are they? Can you match the
2. What interests you in astronomy? Do you know any questions that astronomers are interested in?
Aristotle 亚里斯多德
Metaphysics (宇宙哲学)
Seismography 地震仪
Invented seismography and the Armillary Sphere (浑天仪) so as to observe the universe and predict earthquake
Day 4: God spoke and created the sun, moon and stars. Day 5: God spoke and created living creatures in the air and sea. Day 6: God spoke and created the land animals and man. Day 7: God rested and blessed this day calling it Holy.
Satellites 卫星
Space flights (太空飞行)
Cheer up
Float Weightless Carbin
Step Ⅱ Pre-reading
Do you know each religion or culture has its own ideas about the beginning of the universe?
the phases of the planet
Venus (similar to those of Earth’s moon).
Galileo ntered or heliocentric (以太阳为 中心) theory
Isaac Newton, 牛顿 1642—1727
张衡(78 AD - 139 AD), earliest astronomer in China Later Han Dynasty
Galileo made a series of
profound discoveries using his new telescope, including the moons of the planet Jupiter and
Universal gravitation 万有引力 gravity 地心引力, 重力
Einstein, Albert (1879-1955) 爱因斯坦
Relativity (相对论) and the Cosmos (宇宙)
The theory about black holes (黑洞理论)
Black holes
Pangu separates the sky from the earth.
Nuwa makes human beings.
Other legends about the beginning of universe
上帝创世说：
Day 1: God spoke and separated light from darkness creating Day and Night. Day 2: God spoke and separated the water creating sky and ocean. Day 3: God spoke and created dry land.