Be动词讲解与练习.doc

Be动词讲解与练习一、be动词的现在式和过去式用法：1.be动词的现在式有am, are, is三种，具体用哪一种，必须由主语的人称和数决定。如下表所示：2.be动词的过去式是：was和were, 这两种形式与现在式用法没有多大区别，作谓语时用哪一种，还是由主语的人称和数决定。如下表：二、be动词的句型如下：(1)肯定句：主语+be动词(2)否定句：主语+be动词+not(3)疑问句：be动词+主语注意：含be动词的一般疑问句回答用Yes或No. 其结构是：Yes, + 主语 + be动词 / No, + 主语 + be动词 + not.初中内容：三、There be句型：there be句型是含有be动词的一个重要句型。其结构如下：there + be动词 + 名词 + 地点状语There is a school there. 那里有一个学校。在这个句型中a school是真正的主语，be动词的形式由它决定。当这个名词是单数时，be动词是is或was, 当这个名词是复数时，be动词用are或were。一、把正确的词填在合适的空格里am is are 1. I_a boy. 2. She _ in the zoo. 3. They _ chairs. 4. We _ happy. 5. He _ naughty. 6. Mr. Brown _ a teacher. 7. I _ good! 8. You _ beautiful. 9. Jack and Tom _ tall. 10. It _ a cat.11. Helen_ a student 12. This _my book.13. My father_a cook.14. Jacks friend_in the study.15. Your mother_ swimming.16. Your sister_in the study. 17. Those jackets_my sisters.18. That_her dog. 19. The cat_on the desk. 20. The books_under the table.21. His sisters_running. 22. This train_for Shanghai.23. The dress_too big. 24. This book_for you.25. The waiter_my mother. 26. Those grapes_green.27. The children_singing. 28. Helen and I_in the classroom. 29. I _a doctor.30. _you a nurse?Yes, I am.二、用括号中适当的词填空。1. I _(am, are, is) from Australia.2. She _ (am, are, is) a student.3. Jane and Tom _(am, is, are) my friends.4. My parents _ (am, is, are) very busy every day.5. _ (Are, Is, Do, Does) there a Chinese school in New York?6. _ (Be, Are, Were, Was) they excited when he heard the news?7. There _ (be) some glasses on it.8. If he _ (be) free tomorrow, he will go with us.三、用be动词的适当形式填空。1. A: Where _the post office.B: It _ behind the building.2. A: _ you Miss Black?B: Yes, I _.3. It _ a shirt, it _(not) a skirt.4. There _ a big playground in our school.5. There _ many books in my schoolbag.6. There _ some fish in the box.7. _ there any chairs in the classroom?8. Youd better _ early next time.四、仿照例句改写下列句子。例句：She is in Class One, Grade Two.否定句： She is not in Class One, Grade Two. 一般疑问句： Is she in Class One, Grade Two?回答：Yes, she is. (No, she isnt)1. Bob is on the football team.否定句： 一般疑问句： 回答：2. They are in the teachers office.否定句： 一般疑问句： 回答：3. It is sunny today.否定句：一般疑问句： 回答：4. There is some water in the bottle.否定句： 一般疑问句： 回答：5. There is a piano in the room.否定句：一般疑问句：回答：6. There are many trees in the school.否