This is the digital age. If you don’t know what ChatGPT is, think of the digital products you’re constantly exposed to. Technology can close the gap between paper and screen, but not entirely. Typing will never be as distinctive as handwriting. Mastery of digital technologies is vital, but a sense of touch, authenticity and humanity still matter.

A recent research reveals the enduring value of paper, whether in making decisions, winning over customers or enhancing productivity. In a study from Maferima at Northwestern University and Lili Wang of Zhejiang University, the researchers approached strangers and asked them to take a made-up survey. Half the respondents were given a pen and paper to fill out the form; the other half were handed an iPad. At the end of the exercise, respondents were asked if they wanted to give their email address to receive information on how to donate to a charity. Those who used paper were much likelier to provide their email addresses.

The researchers also saw differences in behavior when they showed Chinese university students an ad for a bookseller at the end of the survey, and then asked them to select some of the books that were being promoted. Those using paper to fill out the questionnaire chose more highbrow books on average than those using the tablet. When asked, paper-and-pen respondents were indeed more likely than iPad users to think their choices were more indicative of their characters.

And in a study from 2017, researchers found that people assigned a greater value to the physical version of a product than its digital version. Shoppers were willing to pay more for books and films they could hold than ones they could only download. Even the sight of someone handling something can help online sales. They found that Instagram posts showing hands touching products like cups of coffee or smartphones got more likes than those that were not being pawed. Similarly, people browsing in a shop on line were more willing to buy a T-shirt if they saw their own simulated hand touch it. All of these explain why retailers target consumers who do more of their shopping offline when selling pricier, less functional products.

Let me start by stating that I am an osprey. As with many in the human population, I spend a great deal of time near the shores and coastlines. Now, many of my fellow wild creatures have asked me to communicate with you on a matter of great importance. We need your help.

It has come to our attention that all of our lives could become endangered by your government. One of the most protective wildlife laws ever put into action is about to be severely weakened:the Endangered Species Act.

We know this would be a disastrous mistake. We had a frightening brush with extinction from the 1950s to the 1970s.Humans realized that chemical poisons such as DDT were causing our eggshells to thin. Other flying species were dying off, too. In 1973, when they were prohibited according to the Act, our population recovered, but it was not easy and not immediate.

The law also protected scores of other animals and plants. It helped save your national symbol, the bald eagle (秃鹰), from extinction. It allowed for the re-introduction of wolves to Yellowstone National Park to restore a natural balance to that ecosystem. Right now, the law protects more than 1,600 species in the United States. Do you really think it is a good idea to weaken it?

Your government is engaged in some very dangerous, short-term and nonscientific thinking. Apparently, it is more economically accountable. That means if saving our lives involves larger possible economic losses, our lives and the stability of all of the multiple ecosystems of which we are a part will be ignored. This will not result in healthy, stable and sustainable ecosystems, which are what we all need to survive. Please help us and help yourselves. Keep the Endangered Species Act unbroken.

“Body clocks” are biological methods of controlling body activities.Every living thing has one.In humans,a body clock controls normal periods of sleeping and waking.It controls the times when you are most likely to feel pain.Eating,sleeping and exercising at about the same time each day will help keep body activities normal.But changes in your life—a new job,for example—destroy the balance and thus cause health problems.You could have difficult sleeping,for example.Scientists suggest that early afternoon is the best time of day for physical exercise. They say we are stronger and faster then.Later,about four o'clock,most people feel tired because of the drop of sugar level in the blood.Early afternoon also is a good time to do tasks about memory（记忆） and mathematics.If you must study,however,do it just before going to sleep at night.Scientists say you are more likely to remember information when there is a short delay（耽搁）between study and bed.Body clocks control all the activities from day to day.They also produce changes about every ninety minutes during the day.At the end of such a time period,our ability to think hard begins to become weak.That is the time we are most likely to day-dream.Within fifteen minutes, we are ready to go back to what we were doing.