[单项选择]If those "mad moments"—when you can’t remember what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help.
Just as bodies require more maintenance with the passing years, so do brains, which scientists now know show signs of aging as early as the 20s and 30s. "Brain aging starts at a very young age, younger than any of
us had imagined and these processes continue gradually over the years,’ said Dr. Gary Small, the director of the Center on Aging at the University of California, Los Angeles. "Pm convinced that it is never too early to get started on a mental or brain-fitness program," he added.
In his book, The Memory Bible, the 51-year-old neuroscientist(神经学家) lists what he refers to as the 10 suggestions for keeping the brain young. They include training memory, building skills, reducing stress, mental exercises, brain food and a healthy lifestyle. It’s a game plan for keeping brain cells spark
A. don’t listen to our friends
B. have lost our important things
C. have some mental problems
D. have a bad memory

[单项选择]If those "mad moments"—when you can’t remember what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help.
Just as bodies require more maintenance with the passing years, so do brains, which scientists now know show signs of aging as early as the 20s and 30s. "Brain aging starts at a very young age, younger than any of
us had imagined and these processes continue gradually over the years,’ said Dr. Gary Small, the director of the Center on Aging at the University of California, Los Angeles. "Pm convinced that it is never too early to get started on a mental or brain-fitness program," he added.
In his book, The Memory Bible, the 51-year-old neuroscientist(神经学家) lists what he refers to as the 10 suggestions for keeping the brain young. They include training memory, building skills, reducing stress, mental exercises, brain food and a healthy lifestyle. It’s a game plan for keeping brain cells spark
A. everyone has bad memories sometimes no matter how old he is
B. we can prevent our mind from aging with various methods
C. brain aging starts at the time when we are in the 20s and 30s
D. memory lost is not the sign that we are getting old

[单项选择]If those "mad moments"—when you can’’t remember what your friend has told you or where you left your keys—are becoming more frequent, mental exercises and a healthy brain diet may help. Just as bodies require more maintenance with the passing years, so do brains, which scientists now know show signs of aging as early as the 20s and 30s. "Brain aging starts at a very young age, younger than any of us had imagined and these processes continue gradually over the years," said Dr. Gary Small, the director of the Center on Aging at the University of California, Los Angeles. "I’’m convinced that it is never too early to get started on a mental or brain-fitness program," he added. In his book, The Memory Bible, the 51-year-old neuroscientist (神经学家) lists what he refers to as the 10 suggestions for keeping the brain young. They include training memory, building skills, reducing stress, mental exercises, brain food and a healthy lifestyle. It’’s a game plan for keeping brain cells spar
A. don’t listen to our friends
B. have lost our important things
C. have some mental problems
D. have a bad memory

[单项选择]Passage Two