[解析]
(1)B.主旨大意题。根据 BACA is an international biker group that was set up in 1995.It was started to help abused children by making them feel safe.可知,BACA是1995年成立的一个国际自行车团体,旨在帮助受虐儿童,让他们感到安全。故选B。
(2)A.细节理解题。根据 But when the bikers of BACA show up in court as well,these children feel much safer.可知,但当BACA的摩托车手也出现在法庭上时,这些孩子会感到更安全。故选A。
(3)C.细节理解题。根据 The bikers become friends with abused children and even take them to school if they're afraid to go on their own.可知,骑自行车的人与受虐儿童成为朋友,如果他们害怕自己去,甚至会带他们去学校。故选C。
(4)D.段落大意题。根据 "We don't hunt down bad guys.Our biggest goal is protecting the kids and making sure they are taken care of," said "shaggy",one president of BACA,in TXK Today's interview.All of BACA's members go by their nicknames (绰号) to protect both themselves and the children they protect.可知,"我们不去追捕坏人,我们最大的目标是保护孩子,确保他们得到照顾,"美国BACA的一位总裁"沙吉"在接受TXKToday采访时说。B ACA的所有成员都用他们的"绰号"来保护自己和他们保护的孩子。所以,第五段主要讲的是BACA摩托车手怎样保护被虐待的儿童。故选D。