it导学案文.doc

盐池高级中学自主学习导学案高二英语 “it”的用法 主备教师:周丽英2016年 5月 12 日 【课题名称】First aid 课型新授课课时【学习目标】 To help students learn to read an exposition about first aid To help students better understand “saving life”To help students learn use some important words and expressions To help students identify examples of “Ellipsis ” in the text【学习重点】1. To summarize the main idea and retell the passage2. To learn to get information from the title of the text and the headings within it【学习难点】1. To summarize the main idea and retell the passage2. To learn to get information from the title of the text and the headings within it【学法指导】 1)任务型学习法2)小组合作Teaching procedures【导学笔记】 StepⅠLead inWatch a short video to introduce “first aid” Which organ of the skin does the burns get damaged in the video?StepⅡwords and expressions ___ seems amazing ____ at my age I am still fit enough to cycle 20 kilometres in an afternoon.Believe me, I know how easy ____ is to begin smoking and how tough ____ is to stop. __ is not easy to stop smoking, but millions have managed to quit and so can you.… and that ___ ___ human activity ___ has caused this global warming rather than a random but natural phenomenon.__ ___ a scientist called Charles Keeling, ____ made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997. 合作交流 点评解惑 1.做形式主语 it 可以用作先行词作为句子的主语,而把句子的真正主语移到后面去, 可以移到后面的主语是： 不定式e.g. It is important to know your limitations.2) 动名词比如用no good, no use, great fun, a new experience等名词作表语时；e.g. It is fun working for him. 为他工作很有意思。3) 主语从句可以是that引导的；e.g. It is strange that it hasn’t been noticed before. 真奇怪, 它以前没有引起注意。 It is a wonder that he is still alive. 他居然还活着, 真是个奇迹。 也可能是wh-词引导的e.g. It is still a question how many people are to come. 多少个人会来, 还是个问题。 It is no business of yours where I spend my summer.　　　　　　　　　我在哪