一般现在时,现在进行时,过去式,一般将来时,各三个陈述句再换成一般疑问句再做肯定和否定回答,

一般现在时 1.She is a good student. Is she a good student? Yes,she is. /No, she isn't.
2.He wants to buy some books. Does he want to buy some books? yes,he does. /No he doesn't
3.There are several apples on the table. Are there several apples on the table?
Yes ,there are./ No,there aren't.
现在进行时1. She is writing her homework, Is she writing her homework? Yes,she is./No, shi isn't.
2.The little boy is playing football with his friends. Is the little boy playing football with his friends?
Yes,he is./ No,he isn't.
3.The teacher is talking with my parents. Is the teacher talking with my parents? Yes,it is./
No,it isn't.
过去时1. The children had a good time in the park.
Did the children have a good time in the park? Yes ,they did./ No they didn't.
2.There were about nine hundred people at the concert.
Were there about nine hundred people at the concert? Yes, there were./No,there weren't.
3. She had some bread for lunch today.
Did she have some bread for lunch today? Yes,she did. /No,she didn't
一般将来时1.They are going to put up a building here.
Are they going to put up a building here? Yes ,they are./No,they aren't.
2.They will have a competition with us in studies.
Will they have a competition with us in studies. Yes,they will./No,they won't.
3. His parents will go to see the Terra Cotta Warriors tomorrow.
Will his parents go to see the Terra Cotta Warriors tomorrow? Yes,they will./No,they won't.