答案：

　　57. B. bring about a drop in the divorce rate

　　58. C. living separately would be too costly

　　59. D. Falling housing prices。

　　60. C. It will irreparably damage their relationship。

　　61. D. The economic recovery will see a higher divorce rate。

　　62. D) It profits by selling its user’s personal data。

　　63. C) They don’t know their personal data enriches Facebook。

　　64. C) To render better service to its users。

　　65. B) Formulating regulations for social-networking sites。

　　66. C) He doesn’t want his personal data abused。

　　點評：

　　文章的主題圍繞當下很受歡迎的社交網站Facebook，揭露其將用戶資料出售給廣告商。而大多數用戶并未意識到這一點，因為他們并沒有意識到個人資料的重要性。作者的態(tài)度和立場非常鮮明，并表示考慮注銷自己的賬戶。

　　67. C avoid

　　68. B however

　　69. D failing

　　70. C stages

　　71. A on

　　72. A predicts

　　73. A through

　　74. B and

　　75. B sensitive

　　76. D experience

　　77. B as well as

　　78. C emotions

　　79. D to

　　80. A inevitable

　　81. D receive

　　82. A with

　　83. D quality

　　84. B positive

　　85. A memories

　　86. B increased