小题1:C
小题2:B
小题3:B
小题4:A
小题5:A
小题1:根据文章内容Now some people begin to look for new excitement.可知答案为C
小题2:根据文章内容可知答案为B，即骑自行车，不会太危险，故选答案为B
小题3:根据文章内容there is a rubber band (橡胶带子) tied to your legs. When you jump down, the rubber band pulls you up可知答案为B
小题4:根据文章内容In the past, people lived in danger. They had to go out and look for food, and life was like a fight but was interesting.可知答案为A
小题5:根据文章内容大意可知答案为A