2l.C细节理解题。根据About Time:A First Look at Time and Clocks的Long ago people used the sun,the moon,and the water to tell time.可知,孩子们可以在《关于时间》这本书中了解过去计算时间的方法。22.D推理判断题。根据Animalium:Welcome to the Museum中Discover the animal kingdom in glorious detail withunique illustrations和Bang!::How We Came to Be中So begins this beautifully illustrated story of evolution可知,这两本书中都有插图用来描述故事。