I. Decide whether the following statements are true (T) or false (F) according to the text. 根据课文内容判断下列陈述是否正确。 1. Bill Gates is very famous because he invented the personal computer. ( ) 2. Bill Gates was among those richest persons in America when he was only 31 years old. ( ) 3. Bill Gates showed his talent for mathematics at an early age. ( ) 4. His parents sent him to Lakeside because the school was very big. ( ) 5. Gates got to know something about computers when he was at Harvard University. ( ) 6. He developed BASIC, DOS and Windows when he was in Microsoft. ( ) 7. DOS and Windows are widely used ( 广泛运用 ) throughout the world now. ( ) 8. To Gates, only making a lot of money can make him very excited. ( )