人教版高中英語必修三unit4astronomythescienceofthestarswarmingupreading課件-資料下載頁
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【導(dǎo)讀】thescienceofstars;talkaboutthistopic?system?distancetothesun?thesun?thesun?Mercury. Venus. Earth. Mars. Jupiter. Saturn. Uranus. Neptune. wheredoIefrom”?Aretheybased. onscience?scientific.3.What’sthetitleofthetext?text?1)Howoldistheearth?theearth?outtheanswer?earth.earth.earthlike?(2)Whathappenednext?form?down?oflifeontheearth.thebeginningoflife?seas.waterappeared?aboutthelifeonland?appeared?
【正文】 ists found hard to solve. What other puzzles are hidden in the passage? on P27 How does the universe(earth) form? Why did the earth cool down? Why did water disappear on other pla? How did the dinosaur disappear ? summary ? After the “big bang”, the earth was still just a cloud of _______,it _______loudly with fire and rock, which were _____ to produce the_________, water vapour and other gases. Then ________ began to appeared on the earth. dust exploded in time carbon water ____________ in water are considered to be the earliest lives on the earth. The O2 they supplied encouraged the lives of____ __________. Slowly green plants grew on land, which were followed by __________ like insects amp。 ________. When the plants grew into______, ______ appeared. Then _______ developed but disappeared later, which made the rise of a totally different animal,______, possible, and finally _____ spread all over the world. shell fish and fish amphibiansforests reptilesdinosaurs mammal humansThe small plants land animals 1. Finish the exercise 1and 2 on page 63 2. Read the text again and find out your difficult points. Homework:
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