题目内容：

    Last spring, I started a new exercise class. As someone who dislikes doing jumping jacks, burpees, and push-ups, I found the workouts surprisingly enjoyable, at least for a while. But after several months, I was overly familiar with the class routine, and my excitement had been replaced with boredom.

A 2016 study for the American Psychological Association estimated that 63 percent of us suffer from boredom regularly. And research shows that chronically(长期地) bored people tend to fall into depression, drug abuse and anxiety.

But boredom isn’t a character weakness. It’s a state caused by something called hedonic(享乐的) adaptations, or the tendency to get used to things over time. This explains why activities and even relationships that were initially satisfying can sometimes lose their appeal.

Humans are remarkably good at growing accustomed to changes in our lives, both positive and negative, according to Sonja Lyubomirsky, a professor of psychology at the University of California, Riverside. This is a good thing when we are faced with adjusting to setbacks such as losing a loved one or a job. But becoming insensitive to positive events can prove harmful. Think about the last time you got a raise, bought a car, or moved. At first, these experiences can bring immense joy. But over time, they become part of the routine. We are ready for the next new thing to excite us.

While boredom can be a downer when it removes the pleasure from our lives, it can provide a sort of service. “If our emotional reactions didn’t weaken with time, we couldn’t recognize new changes that may signal rewards or threats,” Lyubomirsky says. In other words, we’d ignored cues signaling us to make important decisions about our relationships and safety.

It’s not unlike how our reactions change when we fall in love or experience loss. Being caught in the glow of happiness or the web of sadness can make us distracted or forgetful. We may miss signals that indicate whether we’re about to make a smart move or a disastrous one. The good news is that understanding the connection between hedonic adaptation and boredom can help us.

A study published in 2018 in the Personality and Social Psychology Bulletin showed that finding unusual ways to get along with familiar people, places, and things can make everyday experiences feel exciting. In other words, sometimes you’ve just got to shake things up!

1.The author talked about his new exercise class in Paragraph 1 to ______.

A.introduce the topic of boredom B.show the negative effects of exercise

C.prove the significance of exercise D.encourage people to work out regularly

2.What did the 2016 study find about boredom?

A.Three in five people are bound to live with boredom.

B.Occasional boredom has no side effects at all.

C.Lasting boredom may affect people negatively.

D.63 percent of people are victims of anxiety disorder.

3.Why do some people suffer from boredom?

A.They possess some character weaknesses.

B.They adjust themselves to negative changes.

C.They get accustomed to previous happenings.

D.They have difficulty handling human relations.

4.What can we infer from Paragraphs 4 and 5?

A.Emotional reactions result in decision making.

B.Emotional reactions determine the social relationship.

C.Boredom leads to being distracted or forgetful.

D.Boredom helps the discovery of new changes.

5.At the end of the passage, the author might continue to write about ______.

A.the tiny excitement of familiarity B.some fresh ideas for keeping life fresh

C.the reasons for accepting boredom D.some methods to mix things up