肯定句变否定句陈述句变一般疑问句1.1.be动词的否定式 动词be根据不同的人称可以有am,is,are等不同形式,不管何种情况,构成否定式时,一律在其后加not,基本句型为:主语+am/is/are+其他 主语+am/is/are+not+其他例如:I am old,but you are young.我老了,但你还年轻。Im not old,but youre not young.我还不老,但你不年轻了。He is reading and I am writing.他在读,我在写。He is not reading and I am not writing.他没有在读,我没有在写。否 定 句也就是说,把肯定句变成否定句,就是在句子中的bebe动词后面加notnot。2.练习题:1.I am listening to music.2.Mike is a student.3.They are in the zoo.4.There are some flowers.5.This is my sister.6.We are sweeping the floor.I am not liste