系动词Be的用法

1、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 waso( 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

2、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1. I a boy.?you a boy? ?No, I not.2. The girlJack's sister.3. The dog tall and fat.4. The man with big eyes a teacher.5. your brother in the classroom?6. Where your mother? ?She at home.7. How?your father?8. Mike and Liu Tao _ at school.

3、9. Whose dress this?10. Whose socks ?they?11. That my red skirt.12. Who I ?jeans on the desk.a scarf for you.15. Here some sweaters for you.16. The two cups of milk for me.17. Some tea in the glass.18. Gao shan's shirt over there.19. My sister's name _ Nancy.20. This not Wang Fang's penc

4、il.21. ?David and Helen from England?22. There a girl in the room.23. There some apples on the tree.24. there any kites in the classroom?25. there any apple juice in the bottle?26. There some bread on the plate.27. There a boy, two girls, three men and ten women in the park.28. You, he and I from Ch

5、ina.二、用 be 动词的适当形式填空I. 1at school just now （刚才）2. He at the hotel last week.3. We students two years ago.4. Theyon the farm a mome nt ago （刚才）.5. Yang Ling eleven years old last year.6. There an apple on the plate yesterday.7. There some milk in the fridge on Sunday.8. The phone on the sofa yesterda

6、y evening.9. I an English teacher now.10. She happy yesterday.II. They glad to see each other last month.12. Helen and Nancy good friends.13. The little dog two years old this year.14. Look, therelots of grapes here.15. Todaythe sec ond of June. Yesterdaythe first of Jun e. ItChildren ' s Day. A

7、ll the students very exciteam, is, are 的用法1. is和are可分别与not缩写为isn '和aren '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。2. 陈述部分为第一称肯定式时的反意疑问句，通常用aren '如：I ' m late, aren我迟到了，是吗？3. 不要认为在主语之后总是用am。试看：Both he and I are right.他和我都对。或他和我都不对。Neither he nor I am （或 are） right.他和我都

8、不对."I" is an English letter. I 是英语字母。4. 当am, is are位于句末时，均不能与主语缩写。如：Tell me where he is （不能用he' s。告诉我他在哪儿。He is taller than I am （不能用 I ' m。他比我高。A : Are they watching TV? 他们在看电视吗？B: Yes, they are. 不能用 they '是的。注：若其后有not时，am, is, are则可以与主语缩写，其中is和are也 可与 not 缩写。如：Are they watchi

9、ng TV? - No, they ' re 门戒 they aren ' t）.am, is, are 专项练习1. Ia boy. you a boy? No, Inot.2. The girlJack's sister.3. The dogtall and fat.4. The man with big eyesa teacher.5. your brother in the classroom?6. Whereyour mother? Sheat home.7. Howyour father?8. Mike and Liu Taoat school.9. Who

10、se dressthis?10. Whose socks they?11. That my red skirt.12. Who I?jeans on the desk. a scarf for you.15. Here some sweaters for you.16. The black gloves for Su Yang.17. This pair of gloves for Yang Ling.18. The two cups of milk for me.19. Some tea in the glass.20. Gao shan's shirt over there.21. My sister's name Nancy.22. This not Wang Fang's pencil.23. David and Helen from England?24. There a girl in the room.25. There some apples on the tree.26. there any kites in the classroom