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1、Question:Where do we come from? Or we can say: Who are our ancestors? Pre-reading Do you know each religion or culture has its own ideas about the beginning of the universe?Pangu separates the sky from the earthThe development of the lifePangu separates the sky from the earthPangu turns into a myria
2、d of thingsbreathwinds and cloudsvoice thunder left eye the sun right eye the moon blood the rivers veins the roadsStories about the beginning of the universe in China:Nuwa makes human beingsOther legends about the beginning of universeDay 1: God spoke and separated light from darkness creating Day
3、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
4、 rested and blessed this day calling it Holy India Brahma(婆罗门婆罗门) 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.The Big Bang宇宙大爆炸宇宙大爆炸Do you know what a scientific idea is? Do you know what a scientific idea
5、 is?The Big Bang The big bang theory suggests that the universe was once extremely compact(紧密的紧密的) dense(密集的密集的), and hot. Some original event, a cosmic (宇宙的宇宙的) explosion called the big bang, occurred about 13.7 billion years ago, and the universe has been expanding (扩扩大的大的)and cooling. The atmosph
6、ere of the earth: vapor水蒸汽,gases(carbon dioxide 二氧化碳 , oxygen氧气 , nitrogen氮气), dust A bomb exploded and many people were killed.* the Big Bang?HOW LIFE BEGAN ON THE EARTHWords and expressions:astronomy astronomer atmosphere surface solar system explode planet harmful oxygen exist global spread amphi
7、bian reptile shellfish mammal method preventfrom depend on Fast reading:Task1: Find out the lives from the text.1 small plants2 shellfish and other fish3 green plants 4 land animalsinsectsamphibians5 reptiles6 dinosaurs 7 mammalsRead the second and third paragraphs and put the development of life in
8、 the chart.1_2_4._5._3_6._7._8._9._small plants in watershellfish and all sorts of fishgreen plants on landinsects (on land)amphibian (on land and in water)forestsmammals (on land)reptiles (on land) dinosaurs (on land)Reading-II-detail reading人类的兴起Why was the earth different from other planets?A it
9、produced a lot of heat. B.The water remained.C Water disappeared. D.It was the oldest planet.Why was life able to develop on the earth but not on 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 other pl
10、anets. D.The earth was not too hot and not too cold.A cloud of dustCombine into a solid ballExplodewith fire & rock(produce H2O, CO2,O2, N2, other gases) atmosphereCool downwater appeared dissolve harmful gases into Life beganLife developedPut the order of development of life into a time line.A.inse
11、cts and amphibians appearB.a solid ballC.reptiles appear D.a cloud of dustE.shellfish and other fish appearF.dinosaurs appear G.small plants grow on the waterH.plants begin to grow on dry landI.presence of waterJ.mammals (including humans )appearDBIGEHACFJgive offsmokecut downSuggested Answers: To s
12、olve 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 . After the “Big Bang”, the earth was just a cloud of _ dust. It _ loudly with fire and rock, which were _to produce the wate
13、r vapour, _ and other gases. Then small plants grew . They _and filled the oceans and seas with oxygen. Many millions of years later the first green plants began to _on land. When the plants grew into forests,_ appeared for the first time. They produced young generally by _eggs. energeticexplodedin
14、timemultipliedappearreptileslayingcarbon dioxideWhen dinosaurs disappeared, _ became more important. Now small clever animals with _appeared and _all over the world. As time went by they covered the earth and they are putting too much carbon dioxide into the_, which _heat _ the earth into space. Whether life will continue on earth for millions of years to come will _whether this problem can be solved.mammalsspreadhands and feetatmospherepreventsfromdepend on同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
