1. Do you have.? Yes, I do. /No, I dont.你有吗?是的,我有。/不,我没有。Do they have.? Yes, they do. /No, they dont.Does he have.? Yes, he does. /No, he doesnt.Does she have.? Yes, she does. /No, she doesnt.在一般现在时中,句子的谓语动词若是实义动词,常借助助动词do或does来构成否定句或疑问句。does用于主语是第三人称单数的句子中,其他情况用do。2. do/does1)作助动词,帮助构成一般现在时的否定句或疑问句,无意义。Do you have a soccer ball? 你有足球吗?I dont know. 我不知道。Does Jim have a sister? 吉姆有妹妹吗?What does he like? 他喜欢什么?He doesnt like English. 他不喜欢英语。2)作实义动词,“做,