人教高中英语必修3Unit4Reading(共34张PPT)

Para. 4
Why were mammals different from all kinds of forms in the past?
A. They produced young by laying eggs. B. They gave birth to young baby animals and feed them with milk. C. They live on the land. D. They live on the land as well as in the water.
the eight planets in solar system
Venus Mars 金星 火星
Saturn 土星
Neptune 海王星
Mercury 水星
Earth 地球
Jupiter 木星
Uranus 天王星
The solar system
How to remember the order of the eight planets around the sun? My Very Earnest Mother Just Served UN a Pizza
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
Let’s appreciate some beautiful pictures
of the solar system.
Total lunar eclipse (月全食）
Total solar eclipse (日全食)
Read Para. 1&2
a Big Bang a cloud of dust a solid globe
water
atmosphere
How life began from water on the earth?
Study of the groups of life (生命的种类/物种)
1. plants(植物) 2. insects (昆虫) 3. reptiles (爬行类) 4. shellfish and fish (贝类) 5. amphibians (两栖类) 6. mammals (哺乳类)
Where are we from?
Each religion or culture has its own ideas about the beginning of the universe.
Can you tell us some tales about the beginning of the
Summary How life began on the earth.
Big Bang A cloud of dust
human beings mammals
A solid ball Water
dinosaurs
reptiles insects and
amphibians
green plants
Love it Protect it
Give life a better place to live on.
* According to the discussion, write down a short passage.
* Read the text and get a better understanding.
A. The earth had a solid shape. B. The earth didn’t have harmful gases in its
atmosphere. C. The water stayed on the earth but it disappeared
on other planets. D. The water disappeared from the earth.
What is AstroБайду номын сангаасomy?
Astronomy is the scientific study of the universe and the heaven bodies (such as the sun, the moon, and stars), gas, and dust within it.
Careful Reading
Para. 1&2
1. atmosphere
2. water
3. a Big Bang
4. a solid globe 5. a cloud of dust
(A). 3 1 4 2 5 (B). 3 5 4 1 2 (C). 5 3 4 2 1
shellfish and fish
insects (昆虫)& amphibians(两栖)
Plants on land
Reptiles(爬行)
Dinosaurs
Human beings
Mammals (哺乳)
Do some exercises Go on
1
2
3
4
Para. 2
What made up the earth atmosphere?
shellfies & fish
small plants
We have many problems today.
What can we do to protect life?
Discuss the questions Then share your ideas
Like a mother, the earth gives us a home. Like a child, the earth needs our protection.
How Life Began on the Earth
Chinese folk tale: _P_a_n__G_u_ created the world and __N_u__W__a__made the man
Bible: _G__o_d__ created the world, the first man _A__d_a_m__ and the first woman _E__v_a___
disappeared 65 million years ago.
F 6. Then, marmepmtialless began to rise. T 7. At last, human beings came and spread all over
the world.
Plants in the water
science: the Big Bang
How
Life Began On The Earth
?
What’s the writing style of the text?
1A11.11N11a11r1r11a11t1i1v1e11111111记111叙1 文 B. Explanation 说明文 C111.11E11s1s11a11y111111111111111散文
A. They live everywhere on the earth B. They cause global warming C. They find new methods of growing crops D. They enjoy hunting and fishing
Para. 3
Why was the earth different from other planets?
_c_a_r_b__o_n__, _n__i_tr_o__g_e_n_, _w__a_t_e_r__v_a_p__o_u_rand o_t_h__e_r_g__a_s_e_s_ made up the earth atmosphere.
Para. 5 What problem is caused by human being?
astro-, aster- = star
Astronomy：astro星星+nomy知识 the science of the stars
Astronomer：people who study stars Astronaut： astro星星+naut航行
people who travel on the stars Disaster： dis糟糕的+aster星象 something terrible
Fast Reading
Match the main ideas:
Para. 1: Skills to help you: read the first and Para. 2: the last sentence of each para. Para. 3:
Para. 4:
Para. 5:
? (A). How the earth began
Meteor rain（流星雨）
Comet (彗星)
What interests you in astronomy? Do you know any questions that astronomers are interested in?
How was the universe formed? How did life begin on Earth?
True or False ---- Read Para. 4&5
F 1. First of all, sehxetlrlefimshelaynsdmaalllspolratnstosf fish
appeared on the surface of water.
F 2. Then, the esxhterlelmfisehly&smfiashll plants developed. T 3. Next, green plants began to grow on land. F 4. Later, mraemptmileasls appeared for the first time. T 5. After that, dinosaurs developed, but they
(B). HHuomwanlbifeeingdseavpepelaorpeded on the earth.
(C). Water is important (D). Plants & animals developed on the earth (E). How the universe began