1、当主语是单数第三人称时，它与助动词does有关，但是动词谓语一定要恢复为原形。当主语是其他人称时，它与助动词do,I like English. She likes it very much. We go to work by bike.,I do not like English. She does not like it very much. We do not go to work by bike.,否定句,实义动词的否定式: do (does) + not +实义动词,do not=dont does not=doesnt,例: 将下列各句从肯定式改为否定式,I talk to Pet
2、er because I like him. Kate comes from America. Kate works with Peter,I dont talk to Peter because I dont like him.,Kate doesnt come from America.Kate doesnt work with Peter.,一般现在时的疑问句形式: Do + I/ you/ we/ they+动词原形？ Does +he/she/it+动词原形？ 答语： Yes, 主语 + do/ does. No, 主语 + dont/doesnt.,Do you go swimming every week? Yes, I do./ No, I dont. Does he/ she smoke? Yes, he/she does./No, he/she doesnt. Do they often listen to music? Yes, they do./ No, they dont.,
