人教版高中英語必修三unit4astronomythescienceofthestarswarmingupreading課件-展示頁
2024-11-30 14:07本頁面
【正文】 ______. 3) The __________ of water for life. 4) The development of ______ and _______ on the earth. 5) The arrival of _______ and their _____ on the earth. The text mainly tells us the _________ of the earth and the ___________ of life on it. 8. The main idea of Reading1. on P27 theory originearth importance plants animals humans influence / effect formation development Detailed reading This text can mainly divided into two stages Stage 1 : The development of the earth Stage 2 : The development of life (para 1— 3) (para 4— 5) Stage 1: The development of the earth (1) After the Big Bang, what was the earth like? a cloud of dust a solid globe exploded with fire and rock produced water vapour and gases (2) What happened next? (3) What did the water vapour and gases form? the earth’s atmosphere Water appeared (4) What appeared as the earth cooled down? water is important for the beginning of life on the earth. Why is water so important for the beginning of life? Because water allowed the earth to dissolve harmful gases into oceans and seas. Stage2 The
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