阅读理解 More than half of rich Americans have not shown their full wealth to their children, a new survey showed last Tuesday. The survey, published by the Bank of America, studied the rich with $ 3 million or more in assets. It found that 'surprisingly few of those surveyed have well－developed plans to preserve and pass on their assets to their children.' The majority of the 457 people surveyed are self－made, first－generation rich. Fifty－two percent of parents have chosen not to tell their children just how wealthy they are, and 15 percent have given away othing about the family wealth. one in three parents said they had never thought to do it. They are worried that their children would become lazy, spend money freely, make bad decisions and even become a target for gold diggers. Only 34 percent strongly agreed that their children would be able to handle any inheritance(遗产)they plan to leave them. 'There is an expectation about the wealthy parents that they have a responsibility to pass down their fortune to the next generation.'said Sallie Krawcheck, president of the Bank of America Global Wealth and investment Management.'Our research, however,uncovered changing views of what one generation owes the next.' The trend is led by the world's richest man Bill Gates, who promised in 2008 that he would leave his $58 billion fortune to the charity started by him and his wife, the Bill and Melinda Gates Foundation(基金会),and not to his children. 'We want to give it back to society in the way that it will have the most positive impact.'he said. Of his plans for his children, Gates said:'I will give the kids some money but not a meaningful percentage... they will need to work but they will feel reaso nably taken care of.' 1. We can learn from the passage that________. A. rich parents may not know how to manage their inheritance B. rich parents don't equal rich kids, at least in the US C. American children don't get to inherit their parents' wealth D. poor children don't expect themselves to be as rich as their parents 2. According to the survey, most rich Americans________. A. think they owe their children nothing B. think it best to give their money back to society C. doubt their children's ab ility to handle wealth D. are confident of their children's ability to handle wealth 3. The underlined word'they'in Paragraph 6 refers to______. A. responsible children B. Bill Gates and his wife C. first－generation rich D. rich parents 4. From the last paragraph, we can see that Bill Gates wants to show________. A. the trend of leaving no inheritance to children B. the positive impact of charity on society C. the way of giving back to society D. the importance of independence for children