During times of trouble, Franklin Delano Roosevelt spoke from a small room without a fireplace in the White House basement to millions of Americans. In his calm and conversational manner, he reassured（使......恢复信心）the nation in the depths of the Great Depression（大萧条）and through a World War.
Saul Bellow described his own experience of listening to President Roosevelt, hold the nation together, using only a radio and the power of his personality.
"I can recall walking eastward on the Chicago Midway... drivers had pulled over, parking bumper（保险杠） to bumper, and turned on their radios to hear Roosevelt. They had rolled down the windows and opened the car doors. Everywhere the same voice, its odd Eastern accent, which in anyone else would have angered Midwesterners. You could follow without missing a single word as you walked by. You felt you had joined to these unknown drivers, men and women..."
The nation needed the assurance of those Fireside Chats, the first of which was delivered on March 12, 1933. Between a quarter and a third of the work force was unemployed. Every bank in America had been closed for at least eight days. It's hard for us to imagine. It was the hardest time of the Great Depression.
The "Fireside" was symbolic（象征性的）; most of the chats came from a small room in the White House basement. Frances Perkins, Roosevelt's Secretary of Labor, described the change that would come over him just before the broadcasts: "His face would smile and light up as though he were actually sitting on the front porch（门廊）or in the parlor with them. People felt this, and came to respect and love him."
In that first radio visit, Roosevelt began by explaining how the banking system worked : "When you put money in a bank, the bank does not place the money into a safe-deposit vault（金库房）. It invests （投资）your money in many different forms." He went on to announce that the banks would reopen the next day.
71. The main purpose of the article is to ________ .
A. give examples of the power of radio broadcasting
B. make people examine their attitudes toward money
C. suggest that Roosevelt was America's greatest president
D. show how Roosevelt reassured American during hard times
72. According to the article, the Fireside Chats raised the hopes of Americans because President Roosevelt ________ .
A. spoke to them in a friendly and confident tone
B. explained to them how to invest their money
C. was open about his own fears for the country
D. used humor to draw their attention away from their problems
73. The name "Fireside Chats" was probably intended to ________ .
A. demand listeners to protect resources
B. encourage spirited discussion among listeners
C. request people to desire for hope and reassurance
D. persuade Americans to talk with their families
74. Saul Bellow's description of his own experience of listening to President Roosevelt shows ________ .
A. how popular and encouraging Roosevelt's Fireside Chats were
B. how easily Roosevelt's Fireside Chats could be understood
C. what great interest general public took in national affairs
D. what a hard life Americans had in Great Depression