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1、Unit 4 Astronomy:the science of the stars How much do you know about the universe?In our solar system eight planets circle around the sun.What are they?Can you match the names with the planets?水星水星金星金星地球地球火星火星木星木星土星土星天王星天王星海王星海王星solar system太阳系太阳系Mars(火星火星)Venus(金星金星)Earth(地球地球)Mercury(水星水星)Jupiter(
2、木星木星)Saturn(土星土星)Uranus(天王星天王星)Neptune(海王星海王星)People explore the solar systemSpace flights Cheer upSatellites On which planet are there lives at present?Earth1.Do you know the origin of life on earth?2.Each religion or culture has its own ideas about how life began on earth.In Chinese culture_ separ
3、ated(分分)the sky from the earth.Pangu skyearth_ made human beings.Nuwa In western countries:_ created the world and all living things.God Lets get to know how life began on the earthAfter the“Big Bang”,what happened on the earth?The universe began with a“Big Bang”.Why was the earth different from oth
4、er planets?A.It produced a lot of heat.B.The water remained.C.The water disappeared.D.It was the oldest planet.Choose the best answer.BHow did the water come into the earth?settle into Explode with fire and rockdissolve harmful gases Big BangA cloud of dusta solid globeAtmosphereWateroceans and seas
5、Cool down Find out the following words.Para 1-3Listen to the tape of passage1-3,pay more attention to the pronunciation of the key words.A cloud of dust A solid globeAtmosphere A world full of water4132Combine into Explode with fire and rockdissolve harmful gases Cool down It was full of water.1.sma
6、ll plants in water2.shellfish and all sorts of fish3.green plants on land4.insects(on land)5.amphibian(on land and in water)6.forests7.reptiles(on land)8.dinosaurs(on land)9.mammals(on land)Para 4:Find out the following words.Listen to the tape of passage 4,pay more attention to the pronunciation of
7、 the key words.arrival of small plants in waterearly shellfishplantsanimals all sorts of fishearly shellfishA few kindsmany kindsPlants in the waterPlants on landwaterlandinsectsdinosaurs simplecomplex amphibianamphibianreptilereptiledinosaurdinosaurMammalapelowMan had evolved from apes.达尔文达尔文(进化论进化
8、论)DarwinismadvancedThe text can be divided intoPart one:The development of earth itself.Part two:The development of life.Life in the water Life on the landPart three:？Summarythree partsListen to the tape of passage 5,find out the answer to the following question:What problem are these clever animals
9、 causing?What problem are these clever animals causing?They are putting too much CO2 into the atmosphereWhat will happen when we put too much CO2 into the atmosphere?global warminganimals will die outplants will die outThere will be no life on the earthrise of the sea levelicebergs and glaciers meltJapan nuclear leak 爆炸发生后的日本核电站爆炸发生后的日本核电站 JAPAN:Radiation level is still rising One Earth,One HomeHeal the worldMake it a better placeFor you and for me and the entire human raceHomework1 完成导学案课后练习。2 完成课本P45第三题：Summary 填空。