高中英語人教版必修三第四單元the-science-of-the-stars課件ppt(1)培訓(xùn)講學(xué)

1、高中英語人教版必修三第四單元the-science-of-the-stars課件PPT(1)Moon is a satellite(衛(wèi)星),it merely reflect the light of the sun,like a huge mirror hung in the sky.It always moves around planet(行星).海王星海王星 Neptune水星水星Mercury 金星金星Venus Venus 地球地球Earth Earth 火星火星Mars Mars 木星木星Jupiter土星土星Saturn 天王星天王星UranusSome famous astr

2、onomic theoriesThe Law of Gravity萬有引力定律萬有引力定律The Theory of Relativity相對(duì)論相對(duì)論The Theory of Black hole黑洞論黑洞論Step1: Read the passage quickly and match the main idea of each paragraph.Para. 1 The formation(形成形成) of the earth.Para. 2 The importance of water for life.Para. 3 A widely accepted theory about

3、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.Para.1 Para.2Para.3Para.4Para.5 How Life Began on The EarthPart 1: The development of the earthPart 2: The development of lives Step2: Detailed Readin

4、gRead Part 1 (Paragraph 1-3) and answer : Q1. What made up the earths atmosphere after the earth exploded?Q2. How did the earth come into being?Q3. How did water come into being on the earth? Q1: What made up the earths atmosphere after the earth exploded?After the earth exploded,the earths atmosphe

5、re was made up by carborn,nitrogen,water vapour and other gases.Q2. How did the earth come into being?carbonnitrogenwater vapourother gasesThe Big BangA cloud of dusta solid globeexploded with fire and rockmade the earths atmospherethe earth cooled downthe water appearedthe harmful gases and acids w

6、ere dissolvedimportant !Q3. How did water come into being on the earth?The earth _produced _The earth _explodedwater vapourcooled downwater appearedThe development of the life in waterShellfish Amphibian Reptile Mammal Insect Oyster（牡蠣）（牡蠣）belongs to _ Animals such as snake belongs to _ Dog、Cat、Bear

7、 belong to _ Bee belongs to _ Flog belongs to _ ShellfishReptileMammalAmphibianInsect What life developed after water appeared?arrival of small plants in waterearly shellfishPart 2 (Paragraphs 4-5) all sorts of fish(2) What life developed in water next? green plants on land insects on land(3) What l

8、ife developed after the life in water?amphibians on land and in the waterforestsThe development of life on land(1) What life developed next on land? reptiles on land dinosaurs on land(2) What life developed after forests appeared?mammals on land(3) What life developed after dinosaurs? small clever a

9、nimals(4) What life developed after mammals?Dissolved by waterHarmful gasses and aicdsSmall plants in the seasLand plants Land animalsRead Part 2 (Paragraphs 4-5) and fill in the blanks: InsectsAmphibiansReptilesDinosaursMammals_multiplied and filled the oceans and seas with oxygen Shellfish and all

10、 sorts of fishSmall clever animalsThe development of life on land Step3: Read the last paragraph together and answer the problems caused by human beings the earth may become too .The result is that hotglobal warming -green house effect.It caused ice in the North Pole-water level -The result is that

11、rises meltsThe reason is that people are putting carbon dioxide into the atmosphere which the earth into space.prevents heat from escapingStep4 Retelling Look at the following pictures and try to retell the reading passage.The development of the earthcarbonnitrogenwater vapourother gasesThe Big Bang

12、A cloud of energetic dusta solid globeexploded with fire and rockmake the earths atmospherethe earth cooled downthe water appearedthe harmful gases and acids were dissolveDissolved by waterHarmful gasses and aicdsSmall plants in the seasLand plants Land animalsInsectsAmphibiansReptilesDinosaursMamma

13、ls_multiplied and filled the oceans and seas with oxygen Shellfish and all sorts of fishHuman beingsThe development of life on landHome work: 1.總結(jié)time的固定搭配 2.熟記說謊(lie)，躺下(lie)，產(chǎn)卵(lay)的動(dòng)詞原形，過去式和過去分詞 3.分析以下兩個(gè)句子的結(jié)構(gòu) （L13）What is even more important is that as the earth cooled down,water began to appear on its surf