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     Readingcan be a social activity. Think of the people who belong to book groups. They choose books to read and then meet to discuss them. Now, the website BookCrossing.com turns the page on the traditional idea of a book group.

      Members go on the site and register the books they own and would like to share. BookCrossing provides an identification number to stick inside the book. Then the person leaves it in a public place, hoping that the book will have an adventure, traveling far and wide with each new reader who finds it.

    Bruce Pederson, the managing director of BookCrossing, says, “The two things that change your life are the people you meet and books you read. BookCrossing combines both.”

    Members leave books on park benches and buses, in train stations and coffee shops. Whoever finds their book will go to the site and record where they found it.

    People who find a book can also leave a journal entry describing what they thought of it. E-mails are then sent to the BookCrossing to keep them updated about where their books have been found. Bruce peterson says the idea is for people not to be selfish by keeping a book to gather dust on a shelf at home.

    BookCrossing is part of a trend among people who want to get back to the “real” and not the virtual(虚拟). The site now has more than one million members in more than one hundred thirty-five countries.

    Whether you're a child, teenager, young adult or are middle-aged, respect for your parents is an important value. Your parents are the people who raised you, devoting time, energy and money to your development.{#blank#}1{#/blank#}No matter your age, there are 5 ways to show respect.

    ● Respect their belongings.

    One important way to show respect is to show regard for the things important to your parents. For younger children, this may mean not touching jewelry or other valuable things. For grown children, respect may mean returning a borrowed tool in good condition and on time. Lack of respect for a parent's belongings is a violation of personal boundaries.{#blank#}2{#/blank#}And never borrow things without asking first. 

    ● Punctuality .

    {#blank#}3{#/blank#}Therefore, always be on time. For teenagers, showing up on time means coming home by curfew（宵禁）.Adult children should show up on time for family dinners or events, or to pick a parent up for a medical appointment. Call if you're going to be late because parents worry about children, no matter their age.

    ● {#blank#}4{#/blank#}

    Remembering birthdays, anniversaries and other special days is a sign that you honor your parents. Make plans to take them to lunch or dinner or bake a cake or cookies. Most parents don't expect expensive gifts, but a handmade gift is always appreciated .A phone call from a grown child who lives too far for a visit is a welcome sign of respect.

    ● Be kind.

    Kind words and affection are simple ways to show respect. Tell your parents you love them. Listen and allow your parents to speak without interruption. Show a sincere interest in what your parents have to say. Be patient with your parents and don't rush them. Never talk back or be rude or disrespectful. Acknowledge your parents' achievements.{#blank#}5{#/blank#}

    Against the assumption that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.

    This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.

    This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.

    Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone（臭氧）levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.

    “We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.

    Public transport is declining in the rich world. To those who have to squeeze onto the number 25 bus in London, or the A train in New York, the change might not be noticeable. But public transport is becoming less busy in those places, and passenger numbers are flat or falling in almost every American city. That is despite healthy growth in urban populations and employment.

    Although transport agencies blame their unpopularity on things like road works and broken signals, it seems more likely that they are being outcompeted. App-based taxi services like Uber and Lyft are more comfortable and convenient than trains or buses. Cycling is nicer than it was, and rental bikes are more widely available. Cars are cheap to buy, thanks to cut-rate loans, and ever cheaper to run. Online shopping, home working and office-sharing mean more people can avoid travelling altogether.

    The competition is only likely to grow. More than one laboratory is developing new transport technologies and applications. Silicon Valley invented Uber and, more recently, apps that let people rent electric scooters(滑板车) and then abandon them on the pavement. China created sharing-bicycles and battery-powered "e-bikes", both of which are spreading.

    Transport agencies should accept the upstarts, and copy them. Cities tend either to ignore app-based services or to try to push them off the streets. That is understandable, given the rules-are-for-losers attitude of firms like Uber. But it is an error.

    It is doubtful that most people make hard distinctions between public and private transport. They just want to get somewhere, and there is a cost in time, money and comfort. An ideal system would let them move across a city for a single payment, transferring from trains to taxis to bicycles as needed. Building a platform to allow that is hard, and requires much sweet-talking of traditional networks as well as technology firms. It is probably the secret to keeping cities moving.

    Almost none of us have the time to read everything we'd like to read. Yet we lose countless hours to daily activities that bring us little joy like taking buses and waiting in line. What if we could turn these little blocks of unoccupied time into precious and rewarding moments for learning and thinking?

    Established in 2012, iReader, a micro-learning app on mobile phones, brings the biggest ideas from best-selling books through 15-minute audio (音频) and text. So far, more than 3,000 books have been included, ranging from psychology and parenting to management and economics, with new titles added every day.

    iReader is pioneering a new method of reading, with over 9 million users enjoying the benefits already. According to the Pew Research Center (PRC), the British read just 4 paper books a year and over 25% haven't read a single paper book this year, but reading isn't dying. There are now more ways for the British to read than ever before, due to the widespread use of e-books and audio books.

    The books in iReader are rewritten to ensure it is easy to remember the main content. The way the content is edited has been specifically designed to ensure it is useful in practice. Besides, the content is rewritten with related examples in real life, which means users are more likely to remember and apply what is helpful to them.

    Holger Seim, German co-founder of this app, declares, "iReader gives you the biggest ideas in the shortest possible time. It transforms great ideas into little packs you can listen to or read in just 15 minutes."

All over the world millions of people take part in different {#blank#}1{#/blank#} (kind) of sports, such as surfing, football, running, skipping and so on. As a representative of {#blank#}2{#/blank#} most popular kinds of sports, Football doesn't need expensive equipment, which {#blank#}3{#/blank#} (be) the basis of its popularity. Kids can be seen playing to {#blank#}4{#/blank#} (they) hearts' content with a ball {#blank#}5{#/blank#} (make) of plastic bags. Besides, it is the best way {#blank#}6{#/blank#} (communicate) with each other and much more than just a sport. Running as a popular sport can not only improve lung function but also help treat asthma , {#blank#}7{#/blank#} deals with stress and anxiety , making people relaxed and {#blank#}8{#/blank#} (energy), so it is loved by everybody.

  {#blank#}9{#/blank#} a word, we can benefit a lot from doing exercises. If your friends do not like sports, do persuade him/her into {#blank#}10{#/blank#} (take) part in it.