不加冠词的基本规则
1.季节、月份、日期前一般不加冠词。
If winter comes can spring be far behind?
We have few classes on Sunday.
10.1 is National Day.
2.表示球类、棋类、三顿饭的名词前通常不加冠词，但乐器前需加定冠词。
What did you have for lunch?
Dinner is ready.
Let's go and watch them play chess.
My elder brother likes to play football.
The boys are learnig to play the guitar.
play the piano
play the violin
3.有些固定词组中的名词前不加冠词。
at noon at night at dawn at midnight in the morning
in the afternoon in the evening in the daytime in town
in front of (at the back of) at distance (in the distance)
as a whole on the whole to catch cold to have a cold
