2016-2017学年 人教版 必修1 unit3 Travel journal Using language 课件 (21)
2016-2017学年 人教版 必修1 unit3 Travel journal  Using language 课件 (21)第4页

Para.1 There is no such thing as standard English. Para.2 When people use words and expressions different from the “standard language”, it is called a dialect. Para.3 Geography also plays a part in making dialects.