Section A

　　47.capturing and storing CO2或者capture and storage of CO2

　　48. capture and storage

　　49. put it to new use

　　50. increase their yield of fruits and vegetables

　　51. the scale of CO2 emissions

　　Section B

　　52. D. Its negative effects have long been neglected.

　　53. A. Goals with financial rewards have strong motivational power.

　　54. B. They resorted to unethical practice to meet their sales quota.

　　55. B. Its conclusion is not based on solid scientific evidence.

　　56. A. Studying goal-setting can throw more light on successful business practices.

　　57. D) Free market plus government intervention.

　　58. B) Government regulation hinders economic development.

　　59. B) Effective measures adopted by the government.

　　60. D) They give up the idea of smaller government and less regulation.

　　61. D) Excessive borrowing.