For many years, scholars have regarded My Mortal Enemy as somewhat of an enigma. Written in only a few months during the early spring of 1925 and published in 1926, Willa Cather's shortest novel was sandwiched in between The Professor's House (1925) and Death Comes for the Archbishop (1927). While the subject matter of these latter two works can be traced to Cather's experience in the desert Southwest, My Mortal Enemy seemingly has nothing to do with these subjects or her Nebraska roots; it appears to have come out of nowhere, puzzling those who have tried to fit this rather irregular work into a logical progression of Cather's artistic development. The question of what caused Cather to write such a novel at this point in her career, for example, has still not been answered definitively. One commonly held hypothesis (假说) was first voiced by Marcus Klein, who in his 1961 introduction to the novel wrote that for Cather, “The story of Myra Henshawe must have been a personal crisis”. Klein, though, acknowledged that he could not prove his theory, “because there is available no record other than the novel”. Emmy Stark Zitter has recently argued that in My Mortal Enemy and Sapphira and the Slave Girl(1940) Cather exercises the autobiographical impulse (冲击) by putting details of her own life into her fiction, but, like Klein, she is unable to name which “details” of her life Cather drew on in writing My Mortal Enemy.

    As hinted (暗示) in the above statements by Klein and Zitter, much of the general uncertainty about the meaning of My Mortal Enemy can be traced to the absence of a persuasive theory as to who the real-life models for the novel's characters were and what Cather's relationship to them was. Cather herself wrote in a 1940 letter that, in James Woodress's paraphrase, “she had known Myra's real-life model very well, and the portrait drawn in the story was much as she remembered her”; Cather also added that the woman had died fifteen years before My Mortal Enemy was published, and that many relatives of this model later wrote to her to say that they recognized the “real” Myra from her description in the novel. Given such hints and Cather's liking for drawing on her experiences in Nebraska for characters, settings, and plots, it is quite understandable that scholars have thus looked to Red Cloud and Lincoln for possible sources of the people and events depicted in My Mortal Enemy.

    In light of the evidence presented in this article, though, I believe that Cather intended her comments about the model for Myra Henshawe to serve as red herrings (转移注意力的言语) that would protect her relationship with the couple who were the prototypes (原型) for the Henshawes, both of whom were still alive in 1925. Mark Madigan has recently confirmed how Cather in 1905 had to hold off publishing “The Profile (传略)” because of fears that the main character might recognize herself and commit suicide, and twenty years later Cather would have been well aware of how her description of the Henshawes might have affected both the real-life wife (who died in 1929) and husband (who died in 1949) if they had recognized themselves. It is my argument that the Henshawes were modeled after people Cather knew not in Nebraska but rather in New York: S. S. and Hattie McClure. Myra's uncle, John Driscoll, was modeled after Hattie's father, Professor Albert Hurd.

    Possibly most important, identifying the Henshawes as the McClures allows us to more conclusively identify Cather herself with Nellie Birdseye. Nellie and Cather, both Midwestern onlookers and recorders, experienced four distinct stages in their relationships with the Henshawes and the McClures (especially with S. S.) My Mortal Enemy, I believe, was an extended attempt by Cather to deal with certain aspects of her own past and to move on in a world stripped of romantic illusion.

A warm drink of milk before bed has long been the best choice for those wanting a good night's sleep. But now a study has found it really does help people nod off—if it is milked from a cow at night.

    Researchers have discovered that “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepy and reduce anxiety.

    The study, by researchers from Seoul, South Korea, involved mice being fed with dried milk powder made from cows milked both during the day and at night.

    Those given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those fed with the milk collected during daytime, according to the study published in The Journal of Medicinal Food.

    Night milk quickened the start of sleep and caused the mice to sleep longer.

    While the effect of cow's milk harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.

    Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content, which helps people to relax.

    Milk is also sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening. The more fat you take in before bedtime, the greater burden you will put on your body at night.

    Writing it down

    Unlike some other European languages, English is a little tricky when it comes to writing. How a word is pronounced and how it is actually spelt can be very different things.

    Same spelling, different meanings

Imagine, then, a situation where two words are spelt and pronounced exactly the same way, but have completely different meanings. Welcome to the world of homonyms（同形同音异义词）. Take, for example, the word "fair"—it can be a kind of festival, an adjective to describe the colour of your hair or how you should play a game. Or "leg", which can be attached to a person, or a table and can also be a distance you travel, or a part of a competition.

Don't take it literally（字面意思）

So how do you know which meaning someone is referring to? You don't, except by the context. Obviously, if someone asks you to "give them a hand", they don't want you to remove what is at the end of your arm.

What's in a name?

    Sometimes even the context doesn't help much—the result can be amusing. These sentences play with the double meaning of a noun:

    Sentence 1: I used to be a banker, but I lost interest.

Sentence 2: A small boy swallowed some coins and had to go to hospital. When his grandmother phoned to ask how he was, the nurse said: "No change yet".

    More ambiguity（歧义）

    Sentence 3 plays with the different meanings of a verb:

    Sentence 3: I wondered why the ball was getting bigger. Then it hit me.

Double trouble

    And sometimes a word can be a noun and a verb, but have different meanings. Can you work this one out?

    Sentence 4: Time flies like an arrow. Fruit flies like a banana.

    If you like these homonyms, you will be pleased to know that English has plenty more!

    My arms shook. The bow was almost as tall as I was, and it was equipped with an arrow, ready to be shot. Never had a more ill-suited person handled a weapon. But my editor had sent me on a mission: to find my inner Katniss Ever deen at one of Beijing's indoor archery clubs.

    The brilliant archer Everdeen is the lead character in The Hunger Games movies, the final of which was just released in cinemas. Her arrows can hit almost anything: sword-swinging enemies, fierce animals, even aircraft some-how. Me? I can't throw a paper ball into a trashcan with any precision. And I was warned that archery would require a great deal of upper body strength, though I hadn't seen the inside of a gym in years.

    News outlets like the New York Times and NPR have reported an increase of interest in archery, thanks to movies like The Hunger Games, Brave and The Avengers. Archery clubs have showed up in many major cities. In Jian Club, an archery-themed bar, we paid 120 yuan for an hour's worth of target practice and prepared our bows and arrows.

    We were told to stand sideways, with one shoulder facing the bull's eye. Your weaker arm would hold the bow, while the other would pull the bowstring back until the arrow was right next to your face. Then it was meters away.

    Well, sort of. Instead of sending the arrows whistling through the air, my first few simply dropped onto the ground.

    The failure was a good reminder that archery is a demanding, Olympic-level sport. It worked muscles in my back and arms that I just didn't have yet. An hour came and went, and I found myself leaving with a couple pierced (刺穿的)bull's eyes and sore shoulders. Was I ready to shoot down aircraft with a swift arrow? Not quite. But I was definitely ready for a return trip.

    When I was five or six years old, I remember watching TV and seeing other children suffer in other parts of the world. I would say to myself," When I grow up, when I can get rich, I will save kids all over the world."

    At 17, I started my career here in America, and by the age of 18, I started my first charity( 慈善) organization. I went on to team up with other organizations in the following years, and met, helped, and even lost some of the most beautiful souls, from six-year-old Jasmina Anema who passed away in 2010 from leukemia(白血病), and whose story inspired thousands to volunteer as donors, to my grandmother, who lost her battle with cancer in 2012, and her death is the very reason and the driving force behind the Clara Lionel Foundation(CLF). We're all human. And we all just want a chance: a chance at life, a chance in education, a chance at a future, really. And at CLF, our mission is to impact as many lives as possible, but it starts with just one.

    People make it seem too hard to do charity work. The truth is, you don't have to be rich to help others. You don't need to be famous. You don't even have to be college educated. But it starts with your neighbor, the person right next to you, the person sitting next to you in class，the kid down the block in your neighborhood. You just do whatever you can to help in any way that you can. And today, I want to challenge each of you to make a decision to help one person, one organization, one situation that touches your heart. My grandmother always used to say. "If you've got a dollar, there's plenty to share."

The Netherlands is the only country in the world with more bicycles than residents. By 2022, the Netherlands has had a total of about 23 million bicycles, with an ownership rate of 1.35 bikes per person. One study published by the National Institutes of Health (NIH) reports that in the Netherlands cycling prevents about 6,500 early deaths each year, and that Dutch people have 1.5 years longer life expectancy (预期寿命) due to cycling. 

"The time spent cycling was about 74 minutes per week for Dutch adults aged 20 to 90 years old. The time was fairly stable over adulthood and reached its apex in the early days of retirement, in one's 60s. The death rate reduction, which was a direct result of the average time spent cycling for a certain age group, was therefore also the highest among the seniors who just retired," said Jeremy Smith, an expert from NIH.

What is it that makes cycling so beneficial? Obviously, cycling is a form of exercise. It is a great form of cardio (有氧的) exercise, which gets your heart pumping and helps strengthen the heart muscles. Doing cardio exercise may also help lower your blood pressure. 

Furthermore, solid evidence proves the link between cycling and better thinking skills. Even younger adults claim that a bike ride helps shift their thinking to a higher level — and research backs them up. In one small study, young men are required to cycle for 30 minutes every day for 3 weeks. They also completed a series of cognitive (认知的) tests before and afterward. After cycling, they scored higher on memory, reasoning and planning, and they were able to finish the tests more rapidly than before.

Besides all the benefits mentioned above, cycling, as many Dutch put it, is a way of life. In their simplest form, bikes are tools for travelling. But they're so much more. They are cognitive improvement, environmental protection, satisfaction and an expression of freedom. They bring people of the same passion together and connect them to a greater journey of life.