英文中的三餐breakfast, lunch, dinner 這三個字平常是不可以在前面加冠詞 a 或 the 的所以要指 ”吃午餐” 這件事時, 只能說 have lunch, 不能說 have a lunch 或 have the lunch My mom is making dinner. (O) My mom is making a dinner. (X) My mom is making the dinner. (X) Did you have breakfast? (O) Did you have a breakfast? (X) 但是, 這三個字可以在前面加所有格比如: Did you finish your lunch? Lynn didn’t enjoy her dinner. 還有, 如果三餐前有形容詞時, 就可以用冠詞了比如: We had a big dinner on Christmas Eve. Thank you for the delicious dinner. That was an expensive dinner.