Unit 8 Is there a post office near here?there be句型微课教案

教师姓名 单位名称 填写时间
学科 英语 年级/册 七年级下册 教材版本 人教版
课题名称 第八单元there be 结构
难点名称 掌握there be 句型be动词变化及句型转换
难点分析 从知识角度分析为什么难 英语中，there 是引导词，无词义。there be 后面的名词是句子的主语。它像是一种倒装句，但又非倒装句，因为这种“倒装”已成为一种自然的词序。这种结构中的there本身无词义，其后的动词be具有“存在”之意，所以是一实义动词。这个句型在来理解上有些难。 be 动词 的人称和数要与后面的名词保持一致，并且在多个主语的情况下，be动词在人称与数上采取就近原则。这些是学生容易出错的地方。
从学生角度分析为什么难 知识点句型不易理解和掌握，学生会用汉语的思维逐字翻译。同时对可数名词单复数和不可数名词掌握不好也是错题的原因。与be动词之间的关系缺乏联系。对几个基本句型认识不到位，在转换时不能很快掌握其变型规律。
难点教学方法 1.通过观察所给例句来总结句型结构和be动词的变化规律，并用习题巩固 2.通过将there be结构的几个句型中需变型的部分用不同颜色标出来发现变化规律，并用习题巩固 3.通过口诀来加深记忆
教学环节 教学过程
导入 Step 1what is“there be ” Look at the picture and make the sentences. 1. “A cat is under the tree.”we can see“There is a cat under the tree.” 2. “Two dogs are under the tree. ”we can see“There are two dogs under the tree.” 概念：“there be ”句型表示某处有某物/某人。 Eg：1.There is a student in the classroom. 2.There are manybooks on the desk. 用法：There be +主语+地点状语
知识讲解 （难点突破） Step 2 be动词的变化 Look at the sentences and find the rules 1.There is a cat under the tree. 可数名词单数 2.There are two dogs under the tree. 可数名词复数 用法：There is/are +可数名词单数/可数名词复数+地点状语。 3.There is some bread on the desk. 不可数名词 用法总结：There is +可数名词单数/不可数名词+地点状语。 There are +可数名词复数+地点状语。 Step 3就近原则 Look at the picture and make the sentences.Then find the rules 1.There is a cat and two dogs under the tree. 2.There are two dogs and a cat under the tree. 就近原则：若句子中有几个并列的主语时,be动词的形式要与离其最近的一个主语在人称和数上保持一致。 Step 4 There be 相关句型转换 There is/are--- 的否定句 1.There is a knife in the kitchen. There is not a knife in the kitchen. isn’t 2.There are five apples on the tree. There are not five apples on the tree. aren’t 3.There is some milk in the bottle. There is not any milk in the bottle. 规则： be词后面加not, some 变any There be--- 的一般疑问句 1.There is a radio on the desk. Is there a radio on the desk Yes, there is. / No, there isn’t. 2.There are some shoes under the bed. Are there any shoes under the bed Yes, there are. / No, there aren’t. 规则： is/are要提前, some 变any,其他都不变． Step 5 There be 与have、has的区别 He has an apple. 某人拥有某物 There is an apple on the table. 某地有某人/某物 There has an apple on the table. × 1.我有许多的书。 I have many books. 2.桌子上有三只铅笔。 There are three pencils on the table.
课堂练习 （难点巩固） Step 6 1.There _____ a computer on the table. A. is B. are 2.There _____ some water in the bottle. A. is B. are 3.There _____ a lot of green trees in the Park. A. is B. are 1.There _____ a desk and fifty-five chairs in the classroom. A. are B. is 2.There _____ fifty-five chairs and a desk in the classroom. A. are B. is 3.There _____ a pencil-case and many pencils in Tom’s schoolbag. A. is B. are C. have D. be 4.There are a lot of _____ in the fridge. A. meat B. chicken C. eggs D. milk 练一练：把下列句子改成否定句 1. There are two cups on the table. ____________________________________ 2. There are some beautiful flowers in the park. _________________________________ 3. There is a tree in the garden. ______________________________________ 练一练：把下列句子改成一般疑问句: 1. There are four apples on the ground. 一般疑问句:__________________________________ 2. There are some birds in the tree. 一般疑问句:__________________________________ 3.There is a bird in the tree. 一般疑问句:__________________________________
小结 There be 句型有特点，主语跟在be后边； 单数不可数用is，复数用are记心间； 多个主语并列时，be随身边主语变； 变否定，很简单，be后把not添； 变问句，也不难，把be提到there前； 肯定句用some，否定疑问any换