Unit22导学案(5)

Unit22 Environmental Protection 导学案(5)Lesson 3 Natural DisastersTips: Only one earth, share and care.Learning aims:A: Learn and recite the new words in Lesson 3B:Learn and recite the phrases in Lesson 3.C:Using the language points.Learning important and difficult point:Using the language points.StepⅠ 背记下列单词。(A 级)1.方法 n.________ 2.建造 v.__________ 3.破烂的 adj._________ 4.黏土 n.________ 5.砖块 n.________ 6.滑落 vi.____________ 7.滑行 vi.________ 8.多山的 adj._________9.咆哮 vi.__________ 10.逃走 vi.&vt.______ 11.尘土 n.________ 12.滚动 vi.________13.潜在的可能性 n.________ StepⅡRead Passage C ---Passage E and answer the questions.(C 级)1.Why is nature beginning to turn on us?_____________________________________________________ 2.What could be the biggest threat to the planet in the future? _____________________________________________________ 3.What effects might this threat have? _____________________________________________________StepLanguage points from ⅢPassage C to Passage E. (B 级)★ Passage C【本段短语归纳】※ the population of __________ ※ at the disturbing rate of ________※ the developing world________※ the developed world_______ ※ earn one's living___________ ※ fall down ________※ on top of ________ ※amounts of _________ ※as a result___________ 【本段重点句子】1. 大西洋飓风--它们咆哮的风速超过每小时 300 千米--比 30 年前的强度增加了 40%。英译：____________________________________________________________________________________________________________【点拨】本句是现在和过去比较，注意谓语动词的时态不同。★ Passage D【本段重点句子】2.There are more than 300 active volcanoes, about fifty of which erupt 1each year, and more than 500 million people now live within the rangeof a volcanic eruption.__________________________________________________________...