A.Dim light
B.Red light
C.Blue light
D.Darkness
答案 C
解析 细节理解题。第五段说,在蓝色和白色灯光下睡觉的仓鼠表现得最为抑郁,因此选C。
4.What can help people who work late at night to avoid being depressed?
A.Not being exposed to dim red light when using computers.
B.Equipping their computer screen to put it more in the reddish light.
C.Living or working in low levels of light overnight.
D.Going to see doctors of clinical depression regularly for help.
答案 B
解析 推理判断题。最后一段说,生活在蓝色和白色灯光下的仓鼠比生活在红色或黑暗中的仓鼠更抑郁,因此在红色光线中工作能防止抑郁,故B项正确。
B
Welcome to the world of multitasking—a place where the measure of a person is how many jobs they can perform at the same time.In fact,if experts are to be believed,multitasking is a disastrous idea.
One of the opponents of multitasking is Dr.Clifford Nass,a professor at Stanford University.“People who multitask frequently are less able to pay attention;they’re worse at managing their memory,” he said.In his opinion,the loss that we get with multitasking is harmless in some situations,for example,part of doing business in the digital world;but you can’t do serious work like writing,thinking or solving an important problem this way.You do worse even as you think you’re doing better.All the time the research points to a simple fact:the brain cannot cope.When you stop midway through composing a report to check an email,you force your brain to stop and regroup.It is like pressing the pause button during a movie,meaning the film takes longer to watch.
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