单项选择题A．Music they like can relieve depression but distract attention.B．Music they like can reduce stress and improve concentration.C．Classical music and rock-and-roll increases their heart rate and expands the breathing.D．Wearing headphones can help concentrate when they are performing operations.

单项选择题A．Take the job offer.B．Try another job.C．Bargain a bit better.D．Concentrate on her studies.

单项选择题A．Repeat it aloud.B．Write it down.C．Make a mental picture of it.D．Practice recalling it.

单项选择题A．To replace physical therapy.B．To control brain seizures.C．To prevent heart disease.D．To relieve tension.

单项选择题A．It’s easy to locate.’B．It’s in a very windy area.C．It’s exceptionally beautiful.D．It’s partially covered by water.

单项选择题A．The need to exercise the memory.B．How the brain differs from other body tissues.C．The unconscious learning of a physical activity.D．How nerves control body movement.

单项选择题A．Her friend can find cheaper ways.B．The calls could not be cheaper.C．The conversation must be interesting.D．Voice chat is of better quality.

单项选择题A．The cafeteria food is very poor.B．The cafeteria food is so delicious that she eats it too fast.C．The cafeteria food is much like the woman’s home cooking.D．The cafeteria food is so scarce.

单项选择题A．Training given to music therapists.B．How music prevents disease.C．Studies on the benefits, of music.D．How musicians create music.

单项选择题A．She was asked to lead a group of inexperienced cavers there.B．It was the first cave that she had ever visited.C．Clearly marked trails made it easy to explore.D．She hoped to make a discovery.