
book3unit4reading.ppt
39页Unit 4 Astronomy: the science of the starsTHE SOLAR SYSTEM 地球地球 ______木星木星 ______火星火星 ______水星水星 ________海王星海王星 _________土星土星 ________天王星天王星 _______金星金星 ________EarthJupiterMarsMercuryNeptuneSaturnUranusVenusCan you name each planet correctly using the words given in the textbook on P25? Pangu separates the sky from the earthThe Goddess Nuwa mended the heaven and created human beings from the clay(粘粘土土).God created the world in seven daysUnit 4 readingHow Life Began on the Earth1. What is the passage about?2. What is the writing style of the text?A.Narrative 记叙文记叙文 B.Explanation 说明文说明文 C.Essay 散文散文It is about the development of the earthParagraph 1:Paragraph 2: Paragraph 3: Paragraph 4: •The importance of water for life •The development of plants and animals on the earth •The formation of the earth •A widely accepted theory about the formation of the universe dcabParagraph 5:ee. The arrival of humans and their impact on the earth This text can mainly divided into two stagesStage 1 : The development of the earthStage 2 : The development of life(Para 1—3)(Para 4—5)Stage 1: The development of the earth(1) After the Big Bang, what was the earth like? a cloud of dust a solid globe exploded with fire and rock produced water vapour and gases(2) What happened next?(3) What did the water vapour and gases form?the earth’s atmosphere Water appeared(4) What appeared as the earth cooled down?water is important for the beginning of life on the earth. 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.Stage2 The development of lifesmall plants appears on the surface of the water1.What life developed after water appeared?early shellfish and all sorts of fish 2.What life developed in water next?green plants began to grow on land insects appeared3.What about the life on land?amphibians live on land and in the waterplants grow into forests4. What life developed next on land? reptiles appeareddinosaur developed 5.What life developed after forests appeared?mammals on land6.What life developed after dinosaurs? small clever animals7. What life developed after mammals? humans came into being and spread all over the world. 1.Who are the small clever animals with hands and feet? 2. Are they taking care of the earth well? Why? Because they are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space.The earth may become too hot to live on .The earth is becoming hotter and hotter What can we do to prevent the earth from becoming hotter and hotter? e.g. What we can do is to save energy. What we can do is to…A.Insects and amphibians appeared. B. The earth became a solid globe.C. Reptiles appeared. D. The earth was a cloud of dustE. Shellfish and other fish appeared.F. Clever animals with hands and feet appearedG. Dinosaurs appeared. H. Small plants grew on the water.I. Plants began to grow on dry land.J. Water appeared on the earthK. The universe began with a “Big Band”.L. Mammals appeared.831091151741262Can you put the order of development of life into a time line? Choose the best answers.1. Why was the earth different from the other planets? A. It produced a lot of heat. B. The water remained. C. Water disappeared. D. It was the oldest planet.2. Why was life able to develop on the earth but not on the other planets?A. The earth had a solid shape. B. The earth did not have harmful gases in its atmosphere.C The water stayed on the earth but not on the other planets. D. The earth was neither too hot nor too cold.3. Why was it necessary for plants to grow before animals?A. Animals needed plants to protect themselves from the sun. B. Plants provided oxygen for animals to breathe.C. Animals could hide from hunters in forest.D. It was easier for plants to grow.4. What problem is caused by human beings?A. They exist everywhere on the earth.B. They cause global warming.C. They find new methods of growing crops.D. They enjoy hunting and fishing.water vapourSummary The explosion of the earth produced _____ _______, which turned into water when the earth cooled down. Water allowed the earth to _________ harmful gases into the oceans and seas. That made it possible for _____ to begin to develop. The arrival of small ________ encouraged the development of early ________ and all sorts of fish. Many millions of years later the first green plants began to appear on land. dissolvelifeplantsshellfishinsectsamphibiansreptilesdinosaursmammals Later land animals appeared. Some were ________. Others, called ___________, were able to live on land as well as in the water. When the plants grew into forests, ________ appeared for the first time. Then _________ developed, which became the most important animals on the earth for millions of years. After they disappeared, _________ became more important. producedappearedspread They were the last group of animals and they were different because they _________ their young from within their bodies. Small clever animals, with hands and feet, __________ and _________ all over the earth. As time went by, they covered the earth and have become the most important animals on the planet.•. 翻译下面单词和短语翻译下面单词和短语•1.太阳系.太阳系 _________________ 2.及时,总有一天.及时,总有一天 _________________•3.阻止,制止.阻止,制止______________ 4.依靠,信赖.依靠,信赖 __________________•5.感到高兴.感到高兴 _______________ 6.既然,由于.既然,由于 __________________•7.蔓延.蔓延 _______________ 8.一般而言.一般而言 __________________•9.坚固的.坚固的 ______________ 10. 作一次太空旅行作一次太空旅行__________________•11.熟悉,掌握.熟悉,掌握_____________ 12.突发,爆发.突发,爆发 __________________•13.增多,使繁殖.增多,使繁殖_____________ 14.大气层,气氛.大气层,气氛 __________________•15.消失,经过.消失,经过____________ 16.与.与…不同不同 __________________•17.冷却.冷却__________________ 18.失重地.失重地 __________________•19.全球变暖.全球变暖________________ 20.地心引力.地心引力 __________________•二二. 翻译下面单词和短语翻译下面单词和短语•1.太阳系.太阳系solar system 2.及时,总有一天.及时,总有一天 in time•3.阻止,制止.阻止,制止prevent from 4.依靠,信赖.依靠,信赖depend on•5.感到高兴.感到高兴cheer up 6.既然,由于.既然,由于now that•7.蔓延.蔓延spread 8.一般而言.一般而言generally speaking•9.坚固的.坚固的solid 10. 作一次太空旅行作一次太空旅行make a trip into space •11.熟悉,掌握.熟悉,掌握get the hang of 12.突发,爆发.突发,爆发break out•13.增多,使繁殖.增多,使繁殖multiply 14.大气层,气氛.大气层,气氛atmosphere•15.消失,经过.消失,经过go by 16.与.与…不同不同be different from•17.冷却.冷却cool down 18.失重地.失重地weightlessly•19.全球变暖.全球变暖global warming 20.地心引力.地心引力gravity•Understanding.•a. Match the phrases underlined with their correct meaning.•1.They were in time to produce carbon, nitrogen, water vapour and other gases.•2.They multiplied and filled the oceans and seas with oxygen.•3.Carbon dioxide prevents heat from escaping from the earth.•4.It was not immediately obvious that water was to be fundamental to the development of life.•A. increase in number B. important•C. stop/keep…from D. after a long period of time•Key:1 D 2 A 3 C 4 B•b. Try to find a sentence that can be replaced by the following one:• Now it’s their turn to be the most important animals on the planet.__•Thus they have, in their turn, become the most important animals on the planet.•c. Translate the following sentence.•1.It was not immediately obvious that water was to be fundamental to the development of life.•水对生命的发展起关键作用,这一点在当时并不明显。
水对生命的发展起关键作用,这一点在当时并不明显•2. This produced a chain reaction, which made it possible for life to begin to develop.•这就产生了一系列的反映,使得生命就有可能发展了这就产生了一系列的反映,使得生命就有可能发展了•阅读阅读•1..Why did the mother apologize to the author?•A..Because the boy ran into the author.•B..Because the boy laughed at the author.•C..Because the boy said the author was fatter than him.•D..Because the mother thought the boy's words had hurt the author.•答案与解析:答案与解析:D 小孩跟妈妈说这个女士跟我一样高,他妈妈怕这话会伤害到 小孩跟妈妈说这个女士跟我一样高,他妈妈怕这话会伤害到“我我”因此而道歉因此而道歉•2..When did the author realize that she was too short?•A..When she grew up.•B..When she was 47 years old.•C..When she began to go to school.•D..When she met the boy in the supermarket.•答案与解析:答案与解析:C 从文章倒数第四段第一句可知,我直到上学才意识到自己矮。
从文章倒数第四段第一句可知,我直到上学才意识到自己矮•3..Which of the following word can best replace the underlined word “diminished”??•A..Dismissed. B..Increased.•C..Decreased. D..Discriminated.•答案与解析:答案与解析:C 我现在 我现在47岁了,这种对我的注视并没有因为我的长大而减少岁了,这种对我的注视并没有因为我的长大而减少dismiss 解散,解散,increase 增加,增加,decrease 减少,减少,discriminate 区别、辨认区别、辨认•4..How does the author feel about people's stares?•A..Angry. B..Calm.•C..Painful. D..Discouraged.•答案与解析:答案与解析:B 文章倒数第二段可知,我努力保持一种好的态度,可以看出很镇 文章倒数第二段可知,我努力保持一种好的态度,可以看出很镇静静。












