小题1:D
小题2:C
小题3:B
小题4:A
小题5:A
文章大意：文章围绕年龄大的人应该进行常规检查防癌的这中传统做法的利弊以及最近研究人员的观点及原因解释。
小题1:D 细节理解题：Our risk of cancer rises dramatically as we age. So it makes sense that the elderly should be routinely screened for new tumors — or doesn’t it? 随着年龄增长，我们患癌的风险急剧增加。因此老年人应该进行常规检查以防肿瘤是有道理的。
小题2:C 细节理解题：While such vigilant(警觉的)tracking of cancer is a good thing in general, researchers are increasingly questioning whether all of this testing is necessary for the elderly. 尽管总的来说对癌症这样警觉是好事，但研究者们越来越质疑对老年人来说，所有这些测试是否必要。
小题3:B 推理判断题： But the message that everyone must screen for cancer has become so ingrained，但是每个人必须检查防癌的这个想法是如此根深蒂固。
小题4:A 推理判断题：Many doctors are ordering these tests purely to cover themselves. 许多医生让进行这么多测试，纯粹是为了保护自己。cover,对应选项中的protect, 是遮掩；掩护；保护的意思。
小题5:A 细节理解题：going against the misguided belief that when it comes to health care, more is always better. 违背这个被舞蹈的理念：当谈到卫生保健的时候，越多越好。