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1、必修2Unit4 Wildlife protection班级姓名小组号【学习目标】1.背诵默写考纲上Unit4的重点单词和重点短语的意思。2. 通过小组讨论结合语境，感知，掌握词汇decrease的拓展用法。3. 通过阅读能理解文章的主旨大意，读取关键信息，能达到填充信息要点。【重点难点】1.重点：熟练记忆本单元词汇及相关短语。2.难点：能运用句子结构写出正确的句子乃至文章。【学情分析】学生通过自主学习和小组讨论能够总结出本单元的重点词汇和短语的应用，可能在运用上存在语法错误。【导学流程】自主学习内容一回顾旧知U3单词和词组及课文语句背诵默写二基础知识感知：.教材语句感知教材原句1.If th
2、eir habitat is threatened or they cannot find enough food, their numbers may decrease.(教材P25)如果它们的栖息地受到威胁或它们不能找到足够的食物，它们的数量可能会减少。三、探究问题The accidents have_20% since the measure has been taken.译：The mistakes he has made are_.译：The workers wanted to_the number of working hours and to increase pay.译：(1)
3、单句语法填空The number of this kind of whales is _the decrease.(2)单句写作Nature reserves have protected many endangered animals from _ (在方面减少) number.Recently the price of the houses in many big cities_ (降低了) 10%.四、基础知识拓展与迁移：decrease vi.& vt. 减少；(使)变小或变少归纳拓展(1)decrease vt.& vi. (使)变小；减少decrease in 在方面减少decre
4、ase to 减至；减少到decrease by 减少了(2)decrease n. 减少；减小on the decrease 在减少请及时记录自主学习过程中的疑难：小组讨论问题预设:.Skim the passage and tell the main idea of it.It is about a strange dream that Daisy dreamed. In her dream, she took a _to travel and talked with many different_， which made her know the importance of _.提问展示问题预设:.Fill in the blanks according to the passage.课堂训练问题预设：金版教程36页整理内化：1、 课堂小结2、 本节课学习内容中的问题和疑难资
