七年级英语（仁爱版）语法讲解及练习

Be动词的用法 be 是，有，存在, 主要表现为三种形式 am, is, are 。be动词的用法与代词紧密联系 人称代词： I我 we 我们 you 你，你们 she 她 he他 it 它 they他们 指示代词：this这个 that 那个 these这些 those那些 I. 基本用法: 不同的人称代词、指示代词用be的不同形式 be动词的用法顺口溜： 我用am你用are，is用于他、她、它; 单数is复数are，勿忘be的三变化。 变疑问往前提，句末问号莫丢弃； 变否定更容易，be后not别忘记。 疑问否定任你变，句首大写莫迟疑；Be开头的疑问句，Yes/No回答别忘记。 I am a student in Grade Seven. I’m not in Class Eight. I am in Class Five. Are you a student? Yes, I am. No, I’m not. You are in Class Five. He is in Class 5, too. But she isn’t in Class Five. What class is she in? She is in Class 9. It is on the second floor. Is this a cat? No, it isn’t. It’s a cap. That isn’t a cap. That’s a dog. Are those oranges? No, they aren’t. They’re apples. I am=I’m we are=we’re you are=you’re she is=she’s he is=he’s it is = it’s they are=they’re is not= isn’t are not=aren’t 用be动词的适当形式填空。 1. Huang Hua _______ a boy. His English name _______ Tom. He ________ from China. He ______ a student in