甘肃省白银市靖远县北滩中学八年级英语下册 Unit 4 Lesson 20 A computer Helps导学案（无答案）（新版）冀教版

Lesson 20 : A computer Helps!阶段环节教学过程教师活动学生活动第一阶段预学案第二阶段教学案第三阶段检测案目标导航学习目标1.掌握重点单词enter, key, search, depend, hide2.掌握重点短语search engine, depend on, Easter Bunny3.重点句型Its one of the biggest holidays in many countries.I decided to do all of my research on the Internet .The date depends on the moon ,but it is always in March or April .In this way ,it is like the Chinese Spring Festival .自主预习掌握本课单词和短语的读法，并能了解文章大意。预习自测预习反馈：合作探究：交流展示：精讲点拨：达标测试：巩固提升教学反思.英汉互译。1.进入 _ 2.钥匙_ 3.依靠_4.隐藏_ 5.兔子_ 6.笔记本电脑_ 7.复活节_8.搜索_9.话题_重点短语。search engine _depend on _Easter Bunny _fall on_in this way _search for_重点句型 它是许多国家中最大的一个假期。Its _ _ _ _holidays in many countries. 我决定在网上做我所有的研究。I decided to do all of my research _ _ _。 The date depends on the moon ,but it is always in March or April ._.In this way ,it is like the Chinese Spring Festival ._.检查单词及词组的读法并校正。（2-3min）反馈预习自测里的知识。探究一、key 的词性及用法。（2-3min）交流展示：精讲点拨：key n. 键；关键；钥匙 They put the key in the door and entered. 他们用钥匙开了门然后走了进去。key adj. 重要的；关键的He is one of our key thinkers on the future of humanity in the cosmos.他在人类的宇宙前景上这个问题上，是一位重要的思考者。探究二、in this way的用法 (2min )交流展示：精讲点拨：探究三、depend on的用法。(2min )交流展示：精讲点拨：精讲点拨：1.I Easter does not fall on the same day each year. 每年复活节不落在同一天。fall on 落到；指向But it is lucky that the jug did not fall on my head.幸亏罐子没有砸在我头上，这真是不幸中的万幸。2.Do you often search for information on the Internet?你经常在网上搜索信息吗？search for 寻找；搜索You can search for and find reviews online, too.你也可以在网上搜索查找相关评论。Fill in the blanks with correct words.1. She used to work at her _ until four in the morning. 她以前经常在笔记本电脑前工作到凌晨4点钟。2. You are the _to your own happiness, so go ahead, unlock it once and for all.你自己便是自己的快乐的钥匙，因此，往前走，马上打开那把锁。3. What do they know about your _?关于你的主题他们了解多少？4. Each day of the _brings its own meaning.节日里的每一天都有不同的含义。5. The burden would then _ _ the Europeans.那么，负担将落到欧洲人的头上。6. All of our economies _ _ oil.我们所有的经济都得靠石油。7. Dont keep getting onto the boy _ _ _, it will not do any good.别老是这样训斥孩子，这不会有什么好处。8. She pulled a face to _ her embarrassment.她做了一个鬼脸来掩饰她的窘态。完成课本上Lets do it的2、3题。(8-10min )根据汉语提示完成句子1. Most Americans start school at the age of five, when they （进入）kindergarten.2. Ive left my （钥匙）at home and cant get my books.3. You should （依赖）yo