Part ⅣReading Comprehension (Reading in Depth)
Section A
47. divorced from reality/unrealistic
48. The backbreaking labor of the working poor. /The bowed backs of the working poor.
49. (their)lack of skill/(their)low skill
50. much greater
51. Poor.
Section B
52. A 53. B 54. D 55. A 56. C
57. C 58. B 59. D 60. C 61. A