My transportation was unexpectedly smooth and I arrived at the meeting half an hour earlier. I kept my eyes on the restaurant door. Several customers entered, but not my friend. At 6:00 pm, she sent me a text message:“Urgent work to finish. Will be 20 minutes late.”

I had left my book in the office, so I spent the time thinking of my experiences of being late in China. On my first visit in 1985, punctuality was deeply rooted in the Chinese hearts. There were no traffic jams then.

    As a teacher in Canada, I always insisted on punctuality. I would open the classroom door to a late student for the first time and the second, but not the third. During the six years I worked for CCTV, I had a Chinese friend whom I often saw at lunch time, or after work. We used to meet at the subway station nearby. He was always late by 10-20 minutes. To myquestion, “You were busy?” he would surprisingly answer, “ No.” Once I asked him to check the clock in his office, he smiled.

    In March 2015, I got permanent residence (居住权) in China.The ceremony was scheduled for 9:00 am at the Public Security Bureau on the Second Ring Road. I told my driver I had to get there by 8: 40 am. “No problem,”he replied. But he thought he had time to drop someone off at the airport before picking me up. I desperately waited for him. Then, to rub salt into my wound, he had to stop at the exit of a gas station. Finally, I entered the room at 9:07 am ── the last guest to arrive!

    World leaders from nearly 200 countries have signed an important historic agreement to fight global climate change. The agreement came after two weeks of talks between the leaders at the 21st Conference in Paris, France.

    As part of the Paris agreement, countries said they would cut down on pollution However, according to the terms of the deal, countries that don't do this will not be punished, or fined. Instead，the document is meant to show that governments around the world take climate change seriously and are willing to work together to fight global warming.

    World leaders have met many times to discuss climate change. But, the 21st Conference of Parties, or COP21, which began on November 30 in Paris, was the first time they agreed on a global, legal pact (协定).

    Before the conference, each nation was asked to create plans on how to reach the shared goal. The pact that was signed allows countries to decide the best way to cut down their gas pollution. No matter how they decide to go green, each country must report honestly on all of their efforts. Every five years, nations must look at the work they've done and submit new plans on how they will improve over the next five years.

    In the pact, the countries pledge（承诺）to limit the amount of greenhouse gases emitted（排放） by human activity to the levels that trees，soil and oceans can absorb naturally. It urges countries to spend trillions of dollars on creating new energy sources, like solar and wind power. It also requires countries to raise at least $ 100 billion each year to help developing countries.

    However, critics of the pact say it is not detailed enough, and doesn't include specifics about how the plan will be enforced and how improvements will be measured. The pact does include one large, specific goal: how countries will aim to keep global temperatures from rising more than 3.60℉(20℃) by 2100.

    Nonetheless，the agreement is considered by many world leaders to be a major victory. The U. N. has been working more than two decades to convince governments to work together to reduce man-made emissions.

    “History will remember this day,” U. N. Secretary General Ban Ki-moon said. “The Paris agreement on climate change is a monumental success for the planet and its people.”

Ig Nobel Prize

    Having a meal is an easy and delightful process for most people. However, for a woodpecker (啄木鸟), it's not that simple. To get dinner, a woodpecker has to hit its head against a tree numerous times per day. Yet, amazingly, it never suffers any ill effects like brain damage. According to research, it is the woodpecker's thick head bones that protect it from the impact of the blows. For explaining that, Ivan Schwab won an Ig Nobel Prize.

    Ig Nobel Prizes are organized by The Annals of Improbable Research, an American magazine that celebrates the funny side of science. Each year, ten winners are awarded prizes in honor of their “achievements that first make people laugh, and then make them think”. Most of the award-winning research, like Schwab's, may seem unusual, but it usually grabs people's attention indeed. And no matter how ridiculous the research sounds, people can find it inspiring and amusing.

    Brian Wansink's research might interest you. He took home an Ig Nobel Prize for looking into the influence of visual factors on people's appetites. He used specially designed bowls that refilled themselves with soup while people were eating. Since these people had no idea this was happening, they just kept eating from these “bottomless bowls”. They said they didn't feel full because their bowls were not empty yet. People in this experiment ate 73 percent more soup than normal. Owing to these results, Wansink concluded that it's not people's stomachs that decide when they have eaten enough, but their eyes.

    Ig Nobel Prizes also give attention to science and technology that is a part of our daily lives. Take the karaoke machine for example. Its inventor Daisuke Inoue was employed at a nightclub, playing the piano for the customers who wanted to sing. He wasn't skillful enough to play all the songs properly. To clear up the problem, he created the karaoke machine. To Inoue's surprise, the machine caused considerable changes in entertainment worldwide. The Ig Nobel Prize was awarded to Inoue not only because his invention was entertaining, but also because it brought about “an entirely new way for people to learn to tolerate each other”.

    These research results of Ig Nobel Prizes may not be as great as Edison's light bulb or Newton's laws of motion. However, they do show people's willingness to take action and to try new ways to solve problems. According to Marc Abrahams, a founder of the Ig Nobel Prizes. “If you win one, it means that you have done something.”

    Breakdancing is set to make its first debut (亮相) as an Olympic sport at Paris 2024, Tony Estanguet, head of the Paris organizing committee, said on February 21st. Skateboarding, sport climbing and surfing, which have already been added to the programme for the 2020 Tokyo Olympics, have been invited to return in Paris four years later.

    Tony Estanguet said the choices responded to a need to make the Olympics "more urban" and "more artistic". We have chosen to present the International Olympic Committee (IOC) with the four sports because they are creative, appealing to youth and completely in line with our vision. They reflect perfectly Paris 2024's identity.

    Breakdancing is an example of a sport "Which can be played anywhere and anytime in urban and other environment." It appeared at the 2018 Youth Olympics in Buenos Aires in the form of head-to-head "battles". In competitive breakdancing, "breakers" face off in "battles" against each other, either as individuals or teams. Breakdancers use a mix of physical and artistic skills combining elements from gymnastics or acrobatics (杂技).

    The IOC had announced that the number of competitors at Paris 2024 would be restricted to 10, 500, which limited the opportunity to add sports. But the organizers said the inclusion of the four sports in Paris would not necessitate the construction of permanent facilities and would involve just 248 competitors, of which 32 would he in breakdancing. The surfing events are likely to be held in established surf centres such as Biarritz or Lacanau in southwest France.

    The inclusion still need to be rubberstamped by the IOC, which is expected to decide on which sports to add in Paris after next years' Tokyo Games.

    Throughout my educational years, despite the kind teachers I had met, I never felt interest in writing until I met her, Mrs Kelley. At first, I believed that writing would still be my worst class. Gradually, my fondness increased. She taught the lesson in such a lively way and her word choice impressed me. But that was not what made her my favorite. Unlike other teachers, after instructions, she gave an enormous amount of freedom in what we wrote, allowing us to create our own stories using our imagination. And that mattered most.

    There was one really revolutionary event: the historical fiction unit. We were to invent out own stories using the period we were given. World War II was mine. At that point, I was just looking for a good grade. Rather than creating a mundane (平淡的) story, I wanted to make a story that I felt was meaningful. As I progressed, I was pulled further and further into the reality that I had made. Grammar no longer existed, as my hands gained acceleration. When I typed the final word, my hands trembled with excitement. Briefly, I read it over and then submitted the draft.

    In the midst of anxiousness, Mrs Kelley responded. She pointed out some mistakes and gave some suggestions. Sadly, there were no comments of recognition. I fixed the errors and moved on. But when waiting for the final grade, I erased all the unrealistic thoughts that wandered in my mind.

    In the next class, surprisingly, after handing back my paper, Mrs Kelley mentioned that my story was very good. I looked at her in confusion. Soon excitement stirred inside me. I found a “+5” attached to the score. She had given an extra point in "Plot", adding an "Excellent!" No other teacher had done this. On that day, I felt what it means to be a writer. Mrs Kelley introduced me to the beauty of literature and made writing so enjoyable.

It's breathtaking to watch the delicate spring wildflowers come out from their blanket of leaves, bloom, develop and disperse (传播) fruit, all in a matter of a few short days or weeks.

Although they look fragile, these are tough little plants, each focusing its efforts on spreading its species. They have evolved to have a wide range of flower structures and colors, some with fragrances, attracting many different insect species to assist them in pollination (授粉).

There is one strategy that a surprising number of spring blooming native plants have evolved in common: seed dispersal by ants. As many as thirty percent of the spring flowering plant species in the forests of eastern North America have evolved to take advantage of this situation to benefit themselves. These species have evolved to provide food attached to their seeds to encourage ants to disperse those seeds. This food, called an elaiosome（油质体）, is a specialized fat body whose chemical composition more closely matches that of the insects that ants prefer than it does that of a seed.

When a fruit opens to disperse its seeds, the elaiosomes are an instant attraction for ants. They take the seed with its attached elaiosome back to their nests for consumption there, but they just eat the elaiosome, their preferred food, and dispose of the seed on their trash pile. This tends to be an environment that is rich in nutrients, and will benefit the growth of the new plant. Just to make sure the ants don't eat the seeds in addition to the elaiosome, some plant species have hard seed coatings that ants can't really bite through.

This evolutionary adaptation is somewhat similar to the strategy of plants that have evolved to surround their seeds with fleshy fruits to attract birds to assist them with seed dispersal. Given the fact that there are fewer birds available in early spring to help with seed dispersal, it makes sense that the early blooming plants evolved to partner instead with the ants for this service.

Did you ever wonder how your Spring Beauty managed to pop up in new locations in your lawn or garden? Thank an ant!