Unit4 I used to be afraid of the darkSectionB (3a--Self-check)I. 单项选择:(BC 层学生必做,A 层选做或不做)( )1.---More and more people come to visit Mount Huangshan. ---That’s true. It has become the _________ of Anhui.A. prideB. effortC. praiseD. courage( )2. ---The Yellow River _______...