1 . The COVID-19 pandemic began in late 2019 and for the best part of two years, children were forced to learn at home, staring at computers. As they start the 2023-24 school year, a terrifying proportion still seem barely to be back.
According to a study published in early August, in the 2021-22 academic year 28% of schoolchildren missed at least three and a half weeks of school. The study, conducted by Thomas Dee, an education professor at Stanford University, found that “chronic (长期的) absenteeism”, defined as when a pupil misses 10% of the school year, almost doubled overall between 2018-19 and 2021-22. In Alaska, nearly half of all pupils missed enough school to be counted.
Explaining this is tricky. Students skip school for many reasons: lack of transport, poverty, the weather. But these are unlikely to have worsened recently. A more reasonable explanation for the lasting rise is that, having experienced remote learning, some students — and perhaps their parents — no longer think it necessary or even worthwhile to sit in a classroom. “It’s the same thing as in the workplace,” says a teacher in New Orleans. “Once you’ve gone down to only being there two or three days a week, coming back all five is hard.”
Attending school in person is important. Studies show that children who skip more school get significantly worse grades. One published by the Institute of Labour Economics by three American academics found that missing ten maths classes reduced the chance of a high school student graduating on time by 8%. Schools also connect pupils to important services. In Baltimore, schoolchildren can get free meals or be fitted for glasses through school, and their parents can be hooked up with social services. Educators can also spot if a child is being ill-treated or neglected. Pupils develop social skills in school, take part in after-school programmes and learn sports.
There are few easy fixes, though some look for them. Chicago Collegiate is encouraging attendance by giving pupils individual rewards and by holding class pizza parties. In Baltimore, Mayor Brandon Scott plans to award the school with the most improved attendance rate. Most teachers, however, are simply trying to adapt. “Our youngsters, the competition for their attention has never been more difficult,” sighs a teacher in a New York City middle school. The challenge, he says, is to “attract kids to school”.
1. What’s the real reason for the rise in chronic absenteeism after the pandemic?| A．Economic challenges. | B．Worsening transportation. |
| C．Online learning experience. | D．Irresponsible school teachers. |
| A．It lowers the risk of falling ill. |
| B．It improves academic performance. |
| C．It offers access to important services. |
| D．It promotes the development of social skills. |
| A．Effects. | B．Origins. | C．Responses. | D．Solutions. |
| A．Various measures have been taken to improve school attendance. |
| B．In-person attendance at school is beneficial to students’ development. |
| C．Chronic absenteeism in schools saw a significant rise after the pandemic. |
| D．Online learning is gaining in popularity among students and parents. |
2 . A workday filled with mentally challenging tasks can make people feel worn out and desire a relaxing evening of TV shows. A study led by Antonius Wiehler of Pitié-Salpêtrìère University Hospital provides an explanation for this familiar phenomenon.
Researchers arranged for two sets of subjects to work for over six hours. The first group was assigned a difficult version of tasks, while the second was given a simple version. They measured levels of glutamate (谷氨酸) that collected in the cognitive area of subjects’ brains, finding higher levels of the chemical appeared in the first group, although both groups reported feeling similar levels of tiredness after the daylong experiment. Glutamate helps learning and memory, but too much glutamate can give rise to brain cell damage.
Also, when researchers offered financial choices, as a measure of whether the difficulty of work affected subjects’ decision-making ability, those finishing harder tasks were more likely to choose to take home an immediate reward rather than wait for a larger cash-out at a later date. “Existing theories suggested fatigue (疲劳) is an unreal feeling cooked up by the brain to make us relax,” Wiehler says. “Yet our findings provide proof that cognitive work causes the collection of bad substances, so fatigue would be signal that makes us stop working but for a different purpose: to preserve normality of brain functioning.”
“Defining what fatigue is remains a challenge for the field, says neuroscientist Matthew Apps, “but it’s exciting that this experiment provides a reasonable alternative explanation that is of great help.” He notes some areas where these findings might come in. For people in jobs requiring intense focus, burnout can lead to damaging consequences. Preventing glutamate’ building may help maintain attention. Another area of interest would be researching clinical conditions related to fatigue. The presence of glutamate might reveal why patients struggle with fatigue.
For Wiehler, open questions remain. One limitation is their focus on the brain’s specific region, so what impact cognitively effortful work has on the rest parts remains to be seen. In addition, it’s not yet clear how the balance of glutamate is restored after rest. “Maybe it leaves the brain during sleep,” Wiehler says. “There’s tons of research to come.”
1. What was found in the experiment?| A．People who work longer expect higher rewards. |
| B．Tasks’ difficulty greatly affects levels of fatigue. |
| C．Tougher tasks cause more glutamate to build up. |
| D．Decision-making is linked with financial factors. |
| A．It bothers people in the workplace. | B．It mainly results from mental stress. |
| C．It signals the necessity of relaxation. | D．It serves as a protection for the brain. |
| A．Reliability of the finding. | B．The practical use of the study. |
| C．The challenge in the cognitive field. | D．Urgency to solve fatigue-related problems. |
| A．What limitations their experiment has. |
| B．Whether the balance of glutamate can recover. |
| C．Why rest is important for the brain to function well. |
| D．How demanding tasks affect other areas of the brain. |
