第二部分：阅读理解（共20小题；每小题2.5分，满分50分）
第一节 （共15题；每小题2.5分，满分37.5分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项
A
Not many years ago, a wealthy and rather strange old man named Johnson lived alone in a village in the south of England. He had made a lot of money in trading with foreign countries. When he was seventy – five, he gave $ 60,000 to the village school to buy land and equipment for a children’s ground.
As a result of his kindness, he became famous. Many people came to visit him. Among them was a newspaperman. During their talk, Johnson remarked that he was seventy-five and expected to live to be hundred. The newspaperman asked him how he managed to be healthy at seventy-five. Johnson had a sense of humor. He liked whisky and drank some each day. “I have an injection (注射) in my neck each evening,” he told the newspaperman, thinking of his evening glass of whisky.
The newspaperman did not understand what Johnson meant. In his newspaper he reported that Johnson was seventy-five and had daily injection in his neck.Within a week Johnson received thousands of letters from all over Britain, asking him for the secret of his daily injection.
21. Johnson became a rich man through _______.
