参考答案：错

解析：[听力原文]The budget proposes $2.7 billion to expand alternative energy research, a 53 percent increase over the 2006 funding level. These funds will support further research into cellulosic ethanol, which can be produced from sources like wood chips and grasses.[难点] “The budget proposes $2.7 billion to expand alternative energy research, a 53 percent increase over the 2006 funding level.”一句中，关键是理解数字。