系动词Be的用法.docx

系动词 Be(am, is, are)的用法 一、 请记住以下口诀： 二、 我用 am，你用 are，is 连着他，她，它； 三、 单数名词用 is，复数名词全用 are。 四、 变疑问，往前提，句末问号莫丢弃。五、 变否定，更容易，be 后 not 莫忘记。六、 疑问否定任你变，句首大写莫迟疑。七、 二、Be 动词在一般过去时中的变化： 八、 1．am 和 is 在一般过去时中变为 was。（was not = wasn’t） 九、 2．are 在一般过去时中变为 were。（were not = weren’t） 十、 3．带有 was 或 were 的句子，其否定、疑问的变化和 am,is, are 一样， 即否定句在 was 或 were 后加 not，一般疑问句把 was 或 were 调到句首。 相关练习题 一、用 am, is, are 填空 I a boy.?? you a boy?? ?No, I not. The girl Jacks sister. The dog tall and fat. The man with big eyes a teacher. 5. Where your brother in the classroom? your mother?? ?She at home. How?? your father? Mike and Liu Tao at school. Whose dress this? Whose socks ??they? That my red skirt. Who I ? jeans on the desk. a scarf for you. Here some sweaters for you. The two cups of milk for me. Some tea in the glass. Gao shans shirt over there. My sisters name Nancy. This not Wang Fangs pencil. ?? ??David and Helen from England? There a girl in the room. There some apples on the tree. there any kites in the classroom? there any apple juice in the bottle? There some bread on the plate. There a boy, two girls, three men and ten women in the park. You, he and I from China. 二、用 be 动词的适当形式填空 I at school just now（刚才）. He at the hotel last week. We students two years ago. They on the farm a moment ago(刚才). Yang Ling eleven years old last year. There an apple on the plate yesterday. There some milk in the fridge on Sunday. The phone on the sofa yesterday evening. I an English teacher now. She happy yesterday. They glad to see each other last month. Helen and Nancy good friends. The little dog two years old this year. Look, there lots of grapes here. Today the second of June. Yesterday the first of June. It Children’s Day. All the students very excite am, is, are 的用法 is 和 are 可分别与 not 缩写为 isn’t 和 aren’t，但 am 却不能与 not 缩写为 amn’t ，虽然有人把它缩为 ain’t，但这毕竟是规范的口语说法，不宜仿用。 陈述部分为第一称肯定式时的反意疑问句，通常用 aren’t 如： I’m late, aren’t I?我迟到了，是吗？ 不要认为在主语之后总是用 am。试看： Both he and I are ri