"Do"和"Does"都是英语中的助动词。
一般来说,它们的使用和区别如下:
1. 主语为第一人称单数(I)、第二人称单数(you)和复数(we、they、you等),都用“do”。例如:- I do my homework every day.- You do a great job at work.- We do not have enough money to travel abroad.2. 主语为第三人称单数(he、she、it等),则用"does"。例如:- He does not like spicy food.- She does her makeup every day before going to work.- It does not rain in the desert.3. 在疑问句中,要将助动词置于主语之前,以构成疑问形式。对于第一人称单数和第二人称单数和复数的疑问句,直接使用“do”;对于第三人称单数,使用“does”来构成疑问句。例如:- Do you like coffee - Does she live in this city - Do they want to come with us 总之,使用do和does的核心是理解主语,在此基础上判断使用哪个词。