9.中文：历史是很有趣的学科。
(误)The history is a very interesting subject.
(正)History is a very interesting subject.（学科前一般不加冠词。）
10.中文：他乘火车来这里。
(误)He came here by a train.
(正)He came here by train.（by后接交通工具，中间不加冠词。）
11.中文：今晚你可以看到满月。
(误)You may see the full moon tonight.
(正)You may see a full moon tonight.（月亮，太阳等独一无二的物体，当有形容词修饰时可加a。）
12.中文：她刚才去了保罗街。
(误)She went to the Paul Street just now.
(正)She went to Paul Street just now.（街道名称前一般不加the。）