Be 动词练习题 随堂练习一 用am, is, are 填空。
1. I _____ a student.2. You ____ a doctor.3. she_______ from Jinan.4. You_____American.5. He _____ in Class 4, Grade 1.6. It_____ a car.7. They ____ cars.8. Your mother_______ in China.9. Your friends______ in New York. 10. These _____ buses. 二把下列各题变成否定句。
1. This is a coat.否定句：_________________________ 2. That is an apple.否定句：_________________________3. She is a beautiful girl. 否定句：_______________________4. He is clever.否定句：_______________________5. These are my friends.否定句：_______________________6. I am nine-year-old.否定句：_______________________ 7. I am Lily.否定句：_______________________ 8. They are cars.否定句：_______________________9.Those are desks.否定句：________________________10. It is a cat.否定句：_______________________三把下列各题变成一般疑问句。
__________________________________________2.That is an apple.__________________________________________3.She is a beautiful girl.__________________________________________4.He is clever.__________________________________________5.These are my friends.__________________________________________6.I am nine-year-old.__________________________________________7.I am Lily.__________________________________________8.They are cars.__________________________________________9.Those are desks.__________________________________________10.It is a cat.__________________________________________四给出下列一般疑问句的肯定以及否定回答。
1.Is this a coat?肯定回答：__________________________否定回答：__________________________2.Are those cars?肯定回答：___________________________ 否定回答：___________________________ 3.Are you friends?肯定回答：___________________________ 否定回答：___________________________ 4.Is she a student?肯定回答：__________________________ 否定回答：__________________________ 5.Is he clever?肯定回答：_________________________否定回答：__________________________ Array 6.Are you nine-year-old.肯定回答：__________________________ 否定回答：_________________________ 7.Is she a beautiful girl?肯定回答：________________________否定回答：________________________8.Are these your friends?肯定回答：________________________否定回答：________________________9.Is that an apple.肯定回答：_________________________否定回答：________________________10.Is he at home?肯定回答：________________________否定回答：________________________五对划线部分提问1.This is a coat.________________________________________2.That is an apple.________________________________________3.She is a beautiful girl.________________________________________4.He is my friend.________________________________________5.These are my friends.________________________________________6.I am nine-year-old.________________________________________7.I am Lily.________________________________________8.They are cars.________________________________________9.Those are desks.________________________________________牛刀小试一英语陈述句变一般疑问句和否定句，和一般疑问句回答。
1. He is in Class five.否定句：___________________________________________________一般疑问句：_______________________________________________一般疑问句肯定回答：________________________________________一般疑问句否定回答：________________________________________对划线部分提问：____________________________________________2. It is a book.否定句：___________________________________________________ 一般疑问句：_______________________________________________ 一般疑问句回答：___________________________________________ 对划线部分提问：___________________________________________ 3. They are at home.否定句：__________________________________________________ 一般疑问句：______________________________________________ 一般疑问句回答：___________________________________________ 对划线部分提问：___________________________________________ 4. His shoes are black.否定句：___________________________________________________ 一般疑问句：_______________________________________________ 一般疑问句回答：___________________________________________ 对划线部分提问：___________________________________________ 二用am, is , are 填空1. I ______ a boy. ______ you a boy? No, I _____ not.2. The girl______ Jack's sister.3. The dog _______ tall and fat.4. The man with big eyes _______ a teacher.5. ______ your brother in the classroom?6. How _______ your father?7. Mike and Liu Tao ______ at school.8. Whose dress ______ this?9. Whose socks ______ they?10. Who ______ I?11. The jeans ______ on the desk.12. The black gloves ______ for Su Yang.1.__________is a teacher. (她)2.__________is a good girl. (他)3.__________is in the classroom (它)4.__________are very smart today. (你)5 .__________ (你们) are students.6.__________can’t find my ruler? (我). Where is______ ? (它)7.__________am a student. (我) _______like English verymuch. (我们)8.__________ is my brother. (他)9 .I like her pencil case. __________ is nice! (它)10. ________ are playing ping-pong in the park.（他们）1，生物分离工程：是指从发酵液，酶反应液或动植物细胞培养液中分离，纯化生物产品的过程。