Emily was a shy and quiet student in Greenfield High School. Emily was known for her quiet behavior and her love for literature, often found lost in the pages of a book during lunch breaks.

One day, as Emily walked through the hallway, she noticed a colorful poster announcing an upcoming English poetry competition. Her heart raced with excitement at the prospect of showcasing her talent, but her mind was immediately flooded with doubts. “What if my poem is not good enough? What if everyone laughs at me?”she thought to herself, her cheeks flushing with embarrassment.

As the days went by, Emily found herself caught between her desire to participate and her fear of failure. She talked with her best friend, Sarah, who had been by her side since they were little. She was known for her outgoing personality and her ability to make everyone feel included.

“You have a gift, Emily, ”Sarah said reassuringly, her blue eyes filled with encouragement. “Don’t let your fears hold you back. You never know what might happen unless you try. ”

With Sarah’s support, Emily decided to take a leap of faith and submit her poem for the competition. As the day of the event drew near, she felt a mix of nervousness and expectation. She spent hours perfecting her poem, carefully choosing each word and line to convey her emotions. She practiced her poem in front of the miror, trying to perfect her delivery and expression.

But despite her newfound confidence, Emily couldn’t shake off the feeling of doubt in her mind. These thoughts consumed her, making it difficult for her to focus on anything else.

It was during one of these moments of self-doubt that Sarah came to her rescue once again. “You’re an amazing writer, Emily, ”she said, her voice filled with warmth and sincerity. “Your poem is going to be incredible. Just believe in yourself. ”With Sarah’s words in her mind, Emily felt a renewed sense of determination.

On the day of the competition, Emily took a deep breath and stepped onto the stage.   

In the end, Emily’s poem won first place.

This past July was the hottest recorded month in human history. Heat waves smashed temperature records worldwide and even brought summer temperatures to Chile and Argentina during the Southern Hemisphere’s winter. It’s more than just a matter of sweaty discomfort. In the U.S. alone, it kills more people each year than floods, tornadoes and hurricanes combined. As climate change worsens, access to     1     cooled spaces is rapidly becoming a health necessity.

Yet standard air-conditioning systems have     2     us in a vicious cycle: the hotter it is, the more people use the AC—and the more energy is used as a result. Nicole Miranda, an engineer researching sustainable cooling at the University of Oxford says: “it’s not only a vicious cycle, but it’s a(n)     3     one.” According to 2018 data from the International Energy Agency (IEA), the worldwide annual energy demand from cooling is     4     to more than triple by 2050.

It’s becoming increasingly clear that humans cannot outrun climate change with the same air-conditioning technology we’ve been using. One well-known problem with current AC systems is their reliance on refrigerant     5    , many of which are potential greenhouse gases. About 80 percent of a standard AC unit’s climate-warming emissions currently come from the energy used to     6     it, says Nihar Shah, director of the Global Cooling Efficiency Program at Lawrence Berkeley National Laboratory.

Standard air-conditioning systems     7     cool and dehumidify through a relatively inefficient mechanism: in order to condense water out of the air, they overcool that air past the point of comfort. Many new designs therefore separate the dehumidification and cooling processes, which avoids the need to overcool.

Even with some of the best technologies available, the gains in     8     alone might not be enough to offset the widely expected increase in air-conditioning use. It will not work to simply replace every     9     air conditioner with a better model and call it a day. Instead, a truly cooler future will have to     10     other strategies that rely on urban planning and building design to minimize the need for cooling in the first place.

8 . On March 7, 1907, the English statistician Francis Galton published a paper which illustrated what has come to be known as the “wisdom of crowds” effect. The experiment of estimation he conducted showed that in some cases, the average of a large number of independent estimates could be quite accurate.

This effect capitalizes on the fact that when people make errors, those errors aren’t always the same. Some people will tend to overestimate, and some to underestimate. When enough of these errors are averaged together, they cancel each other out, resulting in a more accurate estimate. If people are similar and tend to make the same errors, then their errors won’t cancel each other out. In more technical terms, the wisdom of crowds requires that people’s estimates be independent. If for whatever reasons, people’s errors become correlated or dependent, the accuracy of the estimate will go down.

But a new study led by Joaquin Navajas offered an interesting twist (转折) on this classic phenomenon. The key finding of the study was that when crowds were further divided into smaller groups that were allowed to have a discussion, the averages from these groups were more accurate than those from an equal number of independent individuals. For instance, the average obtained from the estimates of four discussion groups of five was significantly more accurate than the average obtained from 20 independent individuals.

In a follow-up study with 100 university students, the researchers tried to get a better sense of what the group members actually did in their discussion. Did they tend to go with those most confident about their estimates? Did they follow those least willing to change their minds? This happened some of the time, but it wasn’t the dominant response. Most frequently, the groups reported that they “shared arguments and reasoned together”. Somehow, these arguments and reasoning resulted in a global reduction in error. Although the studies led by Navajas have limitations and many questions remain, the potential implications for group discussion and decision-making are enormous.

9 . Mental Health Crisis Among Teens Demands a New Approach

Since the CDC released its survey results last month showing alarmingly high rates of sadness and depressive thoughts among teens, fingers have been pointed from two sides at the causes of this crisis.     1    . Others say that today’s more secular(世俗的)culture has confused our most vulnerable young people. But neither side seems to grasp the true urgency of the issue.

According to the CDC’s findings, more than one in five of the 17,000 high school students surveyed reported mental breakdown. Their rates of sadness and hopelessness are the highest in a decade, reflecting an increasing trend exacerbated by society’s isolation(隔离)and stress.     2    .

Parents as well as teachers and others who have direct contact with children must accept this preventive approach. It is crucial that they not be afraid to ask direct questions about depressive thoughts.     3    . It is also especially important that parents understand what help is available to their children.

    4    . For example, we can demand equity equality, which means insurance coverage(保险范围)for behavioral illnesses health issues that is for physical , thus reducing the financial burden. We can also urge our congressmen to fund health programs and expand mental health professions.     5    . Put the politics aside. There are lives in the balance.

I’d like to

That’s all. Thank you.