一、 肯定句改的方法——一步法
1. 有be动词(is are am were was)/情态动词(can,could, will, would, shall, should,must,may)的。在be动词/情态动词后后加not。
2. 无be动词/情态动词,一般现在时在动词前加don’t第三人称单数前doesn't/一般过去式 didn’t。
3加doesn't/ did n’t的句子注意,句子动词要变成原型。
二、 肯定句改一般疑问句的方法——三步法
1. 有be动词/情态动词:be动词/情态动词提到句首,其余照抄,(some改成any,第一人称变为第二人称my改成your , I 改成you,we 改成you,our改成your )句末用问号。
2. 无be动词/情态动词,在句首加Do/Does/Did,其余照抄,(some改成any,第一人称变为第二人称my改成your , I 改成you,we 改成you,our改成your )句末用问号。
3. 加Does、did 的句子注意,句子动词要变成原型。
例如 陈述句: They are in the park. He can play the guitar. He likes the dogs.
否定句 They are not in the park. He can not play the guitar. He doesn't like the dogs
一般疑问句: Are they in the park? Can he play the guitar? Does he like the dogs?