人教课标必修3Unit 4 Astronomy the science of the stars Reading 课件（共28张PPT）

课件28张PPT。Unit 4
Astronomy:
the science of the starsThe Solar system eight planets
many comets
other objects
The solar system is made up of the sun and the objects that orbit(绕...轨道而行)it. These include the eight plants----What are they?海王星
Neptune水星
Mercury 金星
Venus 地球
Earth 火星
Mars 木星
Jupiter 土星
Saturn天王星
Uranus 地球 ______
木星 ______
火星 ______
水星 ________
海王星 _______G. 土星 ________
H. 天王星 _______
I. 金星 ________EarthJupiterMarsMercuryNeptuneSaturnUranusVenusEach religion or culture has its own ideas about the beginning of the universe?Pre-readingPangu separates the sky from the earth.Stories about the beginning of the universe in China:Pangu separates the sky from the earthHis body becomes part of the earth and sky. Pangu separated the earth and sky with an ax. After he died, his breath became wind and cloud; his voice became thunder and his left eye sun and right one moon; arms and legs became edges and mountains; blood became rivers and tendon (筋脉) became roads; muscles became fields and hair stars; teeth and bones became metals, pearls and jade; sweat became rain. Other legends about the beginning of universeHoly
BibleThe Biblical AccountDay 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 上帝创世说：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 Day.
Brahman (婆罗门) is the god first represented in the Hindu Triad. He is the creator of the universe and all living beings are said to have evolved from him.IndiaWhat is the passage about?Prediction It’s about the development of the earth.ReadingI. Read the passage carefully and match the main idea with each paragraph. Para. 1 The formation(形成) of the
earth.
Para. 2 The importance of water for
life.
Para. 3 A widely accepted theory
about the formation of the
universe.
Para. 4 The arrival of humans and
their impact on the earth.
Para. 5 The development of plants
and animals on the earth. True (T) or False (F).
1. The earth appeared before the Big Bang happened.
2. The original atmosphere consisted of nitrogen and oxygen.
3. The main difference between the earth and other planets is that there is water on the earth.
4. Life began in water and then on land.FFTTⅠ.Scanning5. Mammals appeared before the development of dinosaurs.
6. Dinosaurs could give birth to young baby animals and produced milk to feed them.
7. Human beings produce too much carbon dioxide which causes the global warming on the earth.
8. According to the text, human beings would disappear in the end. FFTFCan you put the order of development of life into a time line?(A) insects and amphibians appear
(B) a solid ball
(C) reptiles appear
(D) a cloud of dust
(E) shellfish and other fish appear
(F) dinosaurs appear
(G) small plants grow on the water
(H) plants begin to grow on dry land
(I) presence of water
(J) mammals (including humans) appear
12345678910Ⅲ.Listening II. Answer the following questions.1. Why was the earth different from other planets?
The water remained.
2. Why did the plants grow before the animals came?
Because plants provide oxygen for animals to breathe. Ⅲ.video3. 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.4. Why do you think that humans are the cleverest animals on the earth?
They are the cleverest animals because they have larger brains than any other creature on the earth so far.5. 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 that planet? Do you know why they removed it?
Pluto. Scientists now think it is too small to be called a planet. 6. What problem is caused by human beings?
They cause global warming. How life began on the earth.“Big Bang”other bodies________ starsEarth: a cloud of _____atomsdustSummary a solid _____the earth’s _____________other 4.
_____Water: ____________ to the development of lifewater vapour nitrogen carbonextremely small _______ on the
surface of the waterglobegasesatmospherefundamentalplantsearly _________ and all sorts of fishgreen plants on landland animalsinsectsamphibians___________huge animals
(dinosaurs)the rise of __________human beingsshellfishreptilesmammalsDiscussion:Is the earth getting warmer each year? If so, what effects will this have? What’s the “green house effect”? What can we do to decrease this effect in our daily life?Yes. ?Ⅴ.Homework:
1.Read the text again.
2.Underline tne words or expressions you do not understand