阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
When Benjamin was in eighth grade, he quit the swim team. “I'm not Michael Phelps, why am I even on the team？” he said.
A US therapist who researches perfectionism at Northwestern University realized years later what had happened. Benjamin's perfectionism was creating unrealistic standards. Unable to meet them, he quit.
“My perfectionism prompted high expectations, and that caused real suffering，” Benjamin said. He is not alone in feeling that perfectionism can lead to anxiety. So many millennials (千禧一代) suffer from the ills of perfectionism that psychologists are issuing warnings and schools are emphasizing the need to accept failure.
Northwestern has held meetings that offered tips on how students could deal with a perfectionism problem. Jessica, leading the events and researches, said every generation is a sponge for the messages it receives. “Millennials, more than any other generation in American society, are receiving clear messages around achieving，” she said. “There's an absence of messaging that trying your hardest is still OK.”
The American Psychological Association also found that recent generations of college students have reported higher levels of perfectionism than earlier generations. This “desire to achieve along with being overly critical of oneself and others” affects young people's mental health, according to research data from over 40，000 college students.
Researchers noted that social media adds comparative pressure, along with the drive to earn money and achieve career goals. Perfectionists often create unrealistic goals, which can lead to a higher risk of failure.
In college, Benjamin found himself surrounded by so many intelligent people that he felt he should have been achieving a higher level than he was. “It makes you feel kind of crazy，” he said.
This type of thinking can lead to people putting in less effort, which, as they fall behind, can create more anxiety. “It makes people feel kind of isolated. And that，” Benjamin added, “can cause students to drift away from their school.”
21. Why did Benjamin give up on the swim team?
A．Because he is not Michael Phelps.
B．Because he lacked the passion.
C．Because he couldn't live up to his expectations.
D．Because swimming was too difficult for him to learn.
22. According to Benjamin, perfectionism made him ________．
A．dream of becoming Michael Phelps
B．set up achievable standards
C．be surrounded by intelligent people
D．put less effort and feel anxious
23. What new problems are millennials really faced with?
A．Accepting failures. B．Learning swimming.
C．Chasing perfectionism. D．Befriending other people.
