精选优质文档-倾情为你奉上小学英语语法及练习1 be动词的用法一、口诀:我用am, 你用are, is用在他她它,复数全用are。例题:1. I _ a boy. _ you a boy? No, I _ not. 2. The girl_ Jacks sister. 3. The dog _ tall and fat. 4.The jeans _ on the desk. 二、有be动词的肯定句和否定句 I am from London. I am not from London.He is a teacher. He is not a teacher.She is in the dining room. She is not in the dining room. My hair is long. My hair is not long. Her