把下列句子改为否定句：一空一词
1. This is a pencil-box. This ______ _____ a pencil-box.
2. I am a teacher I ______ ______a teacher
3. These are my English books.
These ______ _______my English books
4. My ruler is yellow. My ruler ________yellow.
5. We are in Class Three , Grade Seven .
We ________ __________ in Class Three,Grade Seven. 6. The flowers are near the window.
The flowers ________near the window.
10. Tom is from England . Tom________ from England . 总结：当句子中的谓语动词是：is ,am, are 时，改为否定句，则在is ,am, are后面加not就行了。

注意is not 缩写isn’t , are not缩写aren’t, 而am not 是不能缩写的。

二：一般疑问句把下列句子改为一般疑问句：
1. This is a pencil-box __________ this a pencil-box.?
2. I am a teacher . ________ _______ a teacher?
3. We are in Class Three , Grade Seven .
_______ __________in Class Three , Grade Seven ?
4. My ruler is yellow. _______ _______ ruler yellow.?
5. These are our English books.
__________these _________ English books?
总结：当句子中有am,is , are时，改为一般疑问句则把am,is , are提到主语的前面去。

是第一人称我I ,我们we ,常把它们改为第二人称you 你，你们；我的my改为你的your；我们的our改为你们的your；是am改为are.
练习：一空一词
1. His aunt’s husband is a policeman.
______his aunt’s husband a policeman.？
2. These are my friends. ______ these ______friends?
3. There are fifty books on the desk.
______there fifty books on the desk?
4. We are on the playground now.
_____ _____on the playground now?
5. My father is a doctor. _______ ______father a doctor?
6. I am in Class Three. _______ ______in Class Three?
7. Lily and Lucy are our good friend ______Lily and Lucy ______good friend ?
8.My telephone number is six one two zero five .
_____ _____telephone number six one two zero five ?。