英语语法之肯定句一般疑问句及其回答一、肯定句变否定句口诀给句子分析它,看它结构是哪个主加be,提前be 其他一切全照抄主加动词主重要Do和 does 来帮忙第三人称单数句首加does其他人称用句首加do 判断下列各句是主语加be还是实意动词,变成一般疑问句,并做肯定和否定回答1. I am a girl.2. I like singing.3. We go to school every day.4. They are good friends.5. He works hard.6. She likes playing with toys.7. My mother watches TV every day.8. You are a beautiful girl.9. Tom is playing football on the playground.10. Bill does his homework after supper.三、肯定句一般疑问句规则肯定句主语+be+其他 变成 be+主语+其