Arriving in Sydney on his own from India, my husband, Rashid, stayed in a hotel for a short time while looking for a house for me and our children.

    During the first week of his stay, he went out one day to do some shopping. He came back in the late afternoon to discover that his suitcase was gone. He was extremely worried as the suitcase had all his important papers, including his passport（护照）.

    He reported the case to the police and then sat there, lost and lonely in strange city, thinking of the terrible troubles of getting all the paperwork organized again from a distant country while trying to settle down in a new one.

    Late in the evening, the phone rang. It was a stranger. He was trying to pronounce my husband's name and was asking him a lot of questions. Then he said they had found a pile of papers in their trash can（垃圾桶） that had been left out on the footpath.

    My husband rushed to their home to find a kind family holding all his papers and documents（文件）. Their young daughter had gone to the trash can and found a pile of unfamiliar papers. Her parents had carefully sorted them out, although they had found mainly foreign addresses on most of the documents. At last they had seen a half-written letter in the pile in which my husband had given his new telephone number to a friend.

    That family not only restored the important documents to us that day but also restored our faith and trust in people. We still remember their kindness and often send a warm wish their way.

    For centuries, elephants have played a big role in the world's economies, culture and religion. The African elephant used to be found all over Africa and the Asian elephant moved from Syria to China to Indonesia. Nowadays, elephants are found in small groups in the south of the Sahara Desert and scarcely in Southeast Asia, Sri Lanka and India.

    In the early twentieth century, there were close to ten million elephants, and now the elephant number is as low as 252,000 and expected to drop down to 160,000 by 2025. Between 2007 and 2014, the elephant population fell by at least 30%, or 144,000 elephants. As researchers have traveled over the African plains, they only spotted one herd of 36 elephants in an area like the size of Mexico. It is clear that these gentle mammals are disappearing right before our eyes.

    There are many reasons why the elephant population has been decreasing, one of which is their habitat. Humans are competing with elephants for living space, and as more and more humans clear the land that is being used by elephants, the elephants have less space. Elephant hunting or “poaching” has been a major factor for the disappearance of this species, and they are killed only for their valuable ivory tusks. Although the trade of tusks is illegal, it is still a common practice in many places.

    Often, all the local people living among elephants would be farmers, and found that they could make more money by selling the tusks of one elephant, than doing manual labor for twelve years. That alone makes it really hard to prevent them from killing the elephants.

    Some places such as Botswana, have put in extra effort to protect their wildlife from poachers by founding their Botswana Defense Force, which is made up of around 700 specially-trained soldiers that are stationed in 40 different areas. You may feel worried about the present situations elephants are in, but there are ways to help. To find out how you can help elephant conservation, adopt an elephant, or donate, click here.

    Bike Share Toronto is the city's official bike share program, designed to give locals and visitors a fun, affordable and convenient alternative to walking, taxis, buses and the subway. There are 200 Bike Share Toronto stations and 2,000 bikes across the city, making Bike Share the most accessible way to get around and explore.

    How it works

    Become an Annual Member or buy a day Pass to access the system.

    Find an available bike nearby, and get a ride code or use your member key to unlock it.

    Take as many short rides as you want while your pass or membership is active.

    Return your bike to any station, and wait for the green light on the dock(停靠点)to make sure it's locked.

    Choose a plan

    For visitors

    Day Pass: $7. Unlimited 30-minute rides in a 24-hour period.

    3-Day Pass: $15. Unlimited 30-minute rides in a 72-hour period.

    For locals

    Monthly Pass: $25. Unlimited 30-minute rides for a month.

    Annual Membership: $90. Unlimited 30-minute rides for a whole year. The Annual Membership is the best deal for locals of Toronto and other frequent riders.

    The first 30 minutes of each ride is included with the membership or pass price. Avoid extra fees by dropping off your bike every 30 minutes at any other station. If you keep a bike out for longer than 30 minutes at a time, you will be charged an extra $1.50 for the first 30 minutes over, $4 for the next 30 minutes, and $7 for each additional 30 minutes after that.

    Contact us
    ●Customer Service: (855)898-2388
    ●Repair Service: (855)-2378
    ●Corporation Partners: (855)898-2398
    ●Employment Opportunities: (855)898-2498

    We often seek food after focused mental activity, like preparing for an exam. Researchers guess that too much thinking consumes a lot of energy from the brain. So the brain, sensing that it may soon require more calories to keep going, apparently leads to bodily hunger, and even though there has been little physical movement, we eat.

    The researchers note that tiring activity both increases the amount of blood sugar and lactate(乳酸盐)circulating in the blood and increases blood flow to the head.

    Because the brain uses sugar and lactate as fuel, researchers wondered if the increased flow of fuel—rich blood during exercise could feed a worn—out brain and reduce the urge to overeat.

    Thirty—eight healthy college students were invited to determine their fitness and metabolic(新陈代谢)rates and to report what their favorite pizza was. Afterward, they sat quietly for 35 minutes before being given as much of their favorite pizza as they wanted. At a later date, the volunteers returned and spent 20 minutes making selections from college and graduate-school entrance exams.

    Next, half the students sat quietly for 15 minutes, before being given pizza. The rest of the volunteers spent those 15 minutes doing intervals on a treadmill(跑步机)two minutes of hard running followed by about one minute of walking, repeated five times. These students were then allowed to gorge on pizza, too. But by and large, they did not overeat.

    When the researchers factored in(将……作为因素考虑)the calories burnt on running, they determined that those students actually consumed 200 fewer total calories after their brain workouts than the resting students.

    The researchers do not know if the runners consumed extra calories at dinner. They also cannot tell whether other types of exercise would have the same effect as running, although the researchers say they suspect that if an activity causes someone to break into a sweat, it should also increase blood sugar and lactate, feeding the brain and weakening hungers call.

    Imagine a small group of people with a shared passion for the same craft. They all have different skills and approaches, but they come together to share skills, share stories, and share in the joy of making something.

    Modern maker culture is filling headlines and lab spaces all over the world. The way makers communicate with each other has changed over time. In the past, skills mainly came from personal sit-downs with members of the group. But sometimes a teacher wasn't available, or the one available didn't know how to do the skill others wanted to learn.

    Today a teacher doesn't even have to be in the same country or occupy the same decade as the students. Thanks to the work of people who take the time to break down and share the details of their craft, an interested individual can learn anything. Guides may range from videos to diagrams and text. Regardless of the media, maker resources are meant to be shared.

    One of the features of the maker movement is the crossover between different interests. Perhaps a passion for cars and for leather craft can result in a truly custom interior (定制的内饰). Perhaps a love of knitting (编织)and robotics will result in a tiny ——but very mobile ——robotic furry cat.

    And once you have started your creation, finding a community to share with is no longer limited to the people nearby. Modern makers have been sharing videos of their progress online for years, contributing greatly to the rapid spread of the maker movement. As different as the participants might be, they share enthusiasm, support, and a willingness to try.

    Imagine making a ping-pong table together with your makers' team. One group builds the basic frame. Another group takes on the responsibility of painting. You knit the net. There is joy in just giving it a try. It will remind you of childhood creations. Whether you are an experienced programmer or just picking up a hammer for the first time, it is never a bad time to come up with an idea, try something, and share the results.

As we all know, the United States is full of cars. There are still many families without cars, {#blank#}1{#/blank#} some families have two or more. However, cars are used for more than {#blank#}2{#/blank#}（pleasant）. They are a necessary part of life.

Cars are also used for business. They are driven to offices and factories by workers {#blank#}3{#/blank#} have no other way to get to their jobs. When salesmen {#blank#}4{#/blank#}（send）to different parts of the city, they have to drive in order to carry their products. Farmers have to drive into the city in order to get {#blank#}5{#/blank#}（supply）.

Sometimes small children must be driven to school. In some cities, school buses are used only {#blank#}6{#/blank#} children live more than a mile away from the school. If the children are too young to walk too far, their mothers take turns {#blank#}7{#/blank#}（drive）them to school. One mother drives on Mondays taking her own children and the neighbors' as well. Another mother drives on Tuesdays, another on Wednesday, and so {#blank#}8{#/blank#}. This is called forming a car pool. Men also form car pools, with three or four men taking turns driving to {#blank#}9{#/blank#} place where they work.

In spite of this, more car pools should be formed in order to put fewer cars on the road and use {#blank#}10{#/blank#}（little）gas.