Module One,Travel,不定冠词 a, an 1. 用于单数普通名词之前，指该名词的全体。 A bike is very useful. 2. 泛指一个，第一次提到 I have a book. 3. 固定词组中 have a look take a walk,Unit 3 Language in use,a university, useful useless European an honest hour 8-year-old “S, M, N, H, R, F, R, X” There is an “s” in the word “star”. Yao Ming is an NBA star.,Unit 3 Language in use,定冠词 the 1.再次提到某物 I have a dog. The dog is lovely. 2.说话双发都知道的事物 3.序数词，最高级前面 (若有指示代词或物主代词，则无the) He is the last man to arrive. This is the most interesting film. He is my eldest brother.,Unit 3 Language in use,定冠词 the 4.乐器前面 play the piano 5. The + 比较级 of 6.世界上独一无二的事物前面 7.表示方向，方位时 in the south (of) 8. The +形容词 表示一类,Unit 3 Language in use,定冠词 the 9. the + 姓氏复数 表示一家人 10.普通名词构成的专有名词前面 the Summer Palace the Great Wall 11. 固定词组 all the time all the same,Unit 3 Language in use,不用冠词 1.专有名词 2.颜色，运动，感官，三餐 3.复数名词或不可数名词 表示一般概念,Unit 3 Language in use,注意： go to school & go to the school go to church & go to the church in front of& in the front of at table & at the table in hospital & in the hospital,