英语 Unit 4 Astronomy the science of the stars Reading 新人教版必修3 .ppt

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1、Book3 Unit 4Astronomy:the science of the starsReading海王星海王星 Neptune 水星水星Mercury金星金星VenusVenus 地球地球Earth Earth 火星火星MarsMars 木星木星Jupiter 土星土星Saturn天王星天王星UranusWhat we have learned?（知识回顾）（知识回顾）Pangu separates the sky from the earthThe Goddess Nuwa mended the heaven and created human beingsGod created t

2、he world in seven daysLife first began in the sea on the earth.Prediction（预测）Read the title and predict what the passage is mainly about?How _began on _the earththe earthlifelife 1.the writing style(体裁体裁)2.organization(段落结构段落结构)说明文说明文 expositionthe first paragraphmain bodythe last Paragraph 3.the wr

3、iting sequence(写作顺序写作顺序)timeline4.topic sentence/key wordssupporting details Reading.Scanning and Match earth(globe/atmosphere)human beingsplants and animalstheorywaterPara.1Para.2Para.3Para.4Para.5the key words of each paragraphPara3:Para4:How the_and its _appeared._ developed on the earth._ appear

4、ed on the earth and produced a _reaction.Para5:Para2:Para1:According to a widely accepted theory,the _began with a Big Bang._,clever animals with hands and feet appeared on the earth.universeearthWateratmospherePlants and animalsHuman beingschain3.The earth became a solid globe/ball.7.The earth was

5、a cloud of dust.8.Water appeared on the earth.10.The universe began with a“Big Bang”.P27 Timeline in Papagraph1-3 1 12.2.3.3.4 4a cloud of dusta solid globe explode atmosphere waterRead aloud and group work(P4-5)Put the order into a timelineP27 exercise2 Keys:10 7 3 8 4 9 6 1 5 2 12 11plantsshellfis

6、h(贝类贝类)and other fishinsects（昆虫）（昆虫）amphibians(两栖类两栖类)plantsmammalsreptiles(爬行类爬行类)dinosaursHuman beingDiscourse markers（话语标记）（话语标记）FirstNextlaterAfter thatHoweverFinally first,next,later,after that,however,finally5.Small plants grew on the water.6.Shellfish and other fish appeared.7.Plants began to

7、 grow on dry land.8.Insects and amphibians appeared.9.Reptiles appeared.10.Dinosaurs appeared.11.Mammals appeared.12.Clever animals with hands and feet appeared.Many millions of years later the first green plants began to appear on the surface of the water.Next,green plants began to grow on land.The

8、y were followed by insects and amphibians.Later,When the plants grew into forests,reptiles appeared for the first time.After that,dinosaurs developed.However,they disappeared,and the mammals developed.Finally,human beings appeared and spread all over the earth.RetellingRetellingSummary 本课小结 A.New wo

9、rds:theory/globe/violent/atmosphere/unlike/fundamental/harmful/chain/lay eggs/exit/mammal/give birth to/B.Reading skills：1.organizaton 2.timeline C.How life began on the earth.(The evolution of life on the earth.)Homework1.Read the passage.2.Write down the retelling on your exercise book.(80120words)Thank you!