人教7年级 暑假专题——There-be结构的一般现在时和一般过去时

暑假专题——There be结构的一般现在时和一般过去时 一. 教学重点和难点： 1. There be结构的一般现在时和一般过去时的构成和使用 2. 与have的区别 二. 具体内容： 1. There be结构表示存在的“有”，意为“某地或某时有某人或某物”的意思。 肯定句的构成：There +be +名词+其他。 否定句的构成：There +be + not +名词+其他。 一般疑问句的构成：Be + there +名词+其他？ 一般疑问句的回答：Yes, there be. No, there be +not. 2. 一般现在时的There be， 表示现在某地有某人或某物。 Eg. 1) There is a book on the desk. There is not a book on the desk. Is there a book on the desk? Yes, there is./ No, there isn’t. 2) There are some children in the classroom. There are not any children in the classroom. Are there any children in the classroom? Yes, there are./ No, there aren’t. 注意：There be结构的be用单数或是用复数,要看离be最近的名词，它是单数就用单数is，如果它是复数就用复数are。 Eg. There is a book, a bag and three pencil-boxes on the chair. 3. 一般过去时的There be，表示过去某地存在某人或某物。 1)There was a bike under the tree a moment ago. There wasn’t a bike under the tree a moment ago. Was there a bike under the tree a moment ago? Yes, there was./ No, there wasn’t. 2) There were two foreign teachers in our school las