74. What kind of role does Australia play in this global event? (回答词数不超过3个)

73．How will governments probably respond to Earth Hour? ( 回答词数不超过12个)

72. What is the goal of this global event? (回答词数不超过7个)

71．What is the example of people’s action for Earth Hour 2009? (回答词数不超过7个)

69．Why is Abby Subark nervous?

A. Her kids don’t want to compare with other rich kids in achievements.

B. Her kids don’t want to achieve success at all.

C. Her kids can achieve success through hard work and education.

D. Her kids can’t reach their goal without a rich family.

68. The underlined sentence “where you end up depends on where you start” most probably means _______ .

A. Your starting point cannot determine your destination.

B. Only a high goal can ensure success.

C. One’s birth has nothing to do with his fate.

D. One’s family lays solid foundation for his future achievements.

67. Which of the statements is NOT true according to the passage?

A. People used to have job opportunities and welfare for upward mobility.

B. A great many poor people can hardly realize their American dream.

C. You can make all your dreams come true in America if born rich.

D. Rich kids are more likely to go to college than poor kids.

66. The main idea of the passage is _______.

A. How the middle class comes about in the U.S.

B. It’s hard to realize the American dream for the poor.

C. Wealth and social status depend on family background.

D. Upward mobility in America is never easy.