【正文】 hile most of us tend to move on after mourning over the lost necessities, there are a few lucky ones who get them back, with the help of the police or the generosity of the person who finds it. And then there is Hunter Shamatt, who not only got back his wallet but with some added happiness that was tagged along!Hunter was on his way to attend his sister’s wedding on a Las Vegasbound flight when he realized that he has misplaced his wallet, sometime during the journey. Hunter’s family reached out to the Frontier flight to enquire if someone had handed it over to them. Unfortunately, there was no sign of the missing wallet.But wait. The story was far from over. Just a week after Hunter’s sister’s wedding, he received a package in his mail. And guess what? There was his wallet! Surprisingly, the wallet was not the only thing that was inside the package. It also had a handwritten note for Hunter which turned out to be a bonus! The piece of paper read,“Hunter, Found this on a Frontier flight from Omaha to Denver — row 12, seat F wedged between the seat and wall. Thought you might want it back. All the best.[]. I rounded your cash up to an even $100, so you could celebrate getting your wallet back. HAVE FUN!!!” Moved by the touching gesture, Hunter’s mom, Jeannie Shamatt, decided to write a post on Facebook giving a detailed description of the incident. She also urged everyone to share the post as she would like to meet and greet the person behind the act of kindness, personally. Now, thanks to the astonishing power of social media, the post finally reached the man behind the note. The man was identified as Todd Brown and it was one of his coworkers who made sure Jeannie Shamatt’s post reaches his colleague. Jeannie turned to Facebook again to thank Brown and his family for restoring her faith in humanity. “I try to teach my children to do the right things in life, help people when you can regardless of the oute. This story is more about restoring faith in people than anything. We hear a lot of bad news but not enough good news. I personally want to thank Todd Brown and his wife for restoring faith that there are amazing people out there.”34. How did Hunter Shamatt get his wallet back? A. Todd Brown sent it back. B. The police mailed it back. C. He found the wallet by himself. D. The Frontier flight helped him get it back.35. What things were found in the package?A. A wallet and a tag. B. A wallet and a note.C. A note and a tag. D. A mail and a tag.36. How did Hunter’s mom feel after receiving the package?A. Touched. B. Uninterested. C. Satisfied. D. Confused.37. What does the author intend to convey?A. Friendship. B. Freedom. C. Kindness. D. Justice. CLearning New Vocabulary during Deep Sleep[Sleeping time is sometimes considered unproductive time. This raises the question whether the time spent asleep could be used more productively, . for learning a new language? Uptonow sleep research focused on the stabilization and strengthening of memories that had been formed during wakefulness. However, learning during sleep has rarely been examined. There is enough evidence for wakelearned information undergoing a revision by replay in the sleeping brain. The replay during sleep strengthens the still weak memory and leaves the newly acquired information in the preexisting store of knowledge.If replay during sleep improves the storage of wakelearned information, then firstplay, . the initial processing of new information, should also be possible during sleep.The research group of Katharina Henke examined whether a sleeping person is able to form new semantic（語(yǔ)義的）associations between played foreign words and translation words during the brain cells’ active states, the socalled “Upstates.” It turned out to be that what they thought was reasonable. When we reach deep sleep stages, our brain cells progressively coordinate their activity. During deep sleep, the brain cells are monly active for a brief period of time before they jointly enter into a state of brief inactivity. The active state is called “Upstate” and the inactive state “Downstate”. The two states alternate（交替）about every halfsecond. New evidence for sleeplearning challenges current theories of sleep and theories of memory. The concept of sleep that we are separated from the physical environment is no longer reasonable. It’s false that plex learning be impossible during deep sleep, says Simon Ruch, cofirstauthor. In how far and with what consequences deep sleep can be applied for the acquisition of new information will be a topic of research in uping years, says Katharina Henke.The research group of Katharina Henke is part of the Interfaculty Research Cooperation (IRC). Thirteen research groups in medicine, biology and