【正文】
Unit4 Reading practice 名師教學(xué)設(shè)計(jì)1. Teaching Analysis 教情分析 Teaching objectives教學(xué)目標(biāo) Language target語(yǔ)言目標(biāo) Key words amp。 expressions重點(diǎn)詞匯和短語(yǔ) For applying: theory, billion, violent, atmosphere, unlike, fundamental, harmful, chain, thus, puzzle, biology, biologist,in time, give birth to, in one’s turn, prevent...from。 For prehending: atom, globe, global, carbon, vapour, presence, dissolve, acid, reaction, multiply, oxygen, mammal, dioxide,lay eggs, carbon dioxide。 For recognizing: Big Bang, nitrogen, shellfish, amphibian。 Sentence structures: ① What it was to bee was uncertain until between and billion years ago when the dust settled into a solid globe. ② It was not immediately obvious that water was fundamental to the development of life . ③ After that, some huge animals, called dinosaurs, developed. ④So whether life will continue on the earth for millions of years to e will depend on whether this problem can be solved. ⑤They were in time to produce carbon, nitrogen, water vapour and other gases. ⑥As a result of this, many scientists believe that the earth may bee too hot to live on. ⑦The earth became so violent that it was not clear whether the shape would last or not. Ability goals能力目標(biāo) Enable Ss to know how to guess the new words according to the passage. Enable Ss to talk about the