[解析]
(1)A.细节理解题.根据第一段中"When a lion tamer holds a chair in front of the lion's face,the lion tries to focus on all four legs of the chair at the same time"可知,当驯兽师拿着椅子在狮子面前时,狮子关注椅子的四条腿,因此椅子用是用来戏耍狮子的.故选A.
(2)A.推理判断题.根据第一段中的"With its focus divided,the lion becomes confused and is unsure about what to do next"可知,当注意力分散时,狮子开始变得困惑,人们跟狮子相似,也会困惑,不知道该怎么做.故选A.
(3)B.态度观点题.根据第三段中"This upsets me to no end because while all the experts are busy debating about which option is best"可知,专家们正忙于讨论哪一种选择是最好的,这令作者苦恼,因此可以推断出作者对专家的态度是怀疑.A.Tolerant.宽容的.B.Doubtful.怀疑的.C.Respectful.尊敬的.D.Supportive.支持的.故选B.
(4)C.推理判断题.根据第四段中"Anytime you find the world waving a chair in your face,remember this:All you need to do is focus on one thing.You just need to get started."及"Starting before you feel ready is one of the habits of successful people"可知,当你面前挥舞着一把椅子时,你要集中精力做一件事,那就是开始下决心去做.成功的人的习惯之一就是在感觉准备好之前就开始行动,文中的"take immediate action"与"make a quick decision"同义.故选C.