Sometimes I really doubt whether there is love between my parents. Every day they are very busy trying to make money for my schooling.

    One day, my mother was sewing a quilt(缝被子). I silently sat beside her. "Mum, is there love between you and Dad?" I asked in a very low voice.

    With surprise in her eyes, she stopped her work for a while. Then she said, "Susan, look at this thread(线). It can hardly be seen, but it' s really there. It makes the quilt strong. If life is a quilt, love should be a thread. Love is inside. "

    I couldn' t understand her until the next spring. At that time, my father suddenly got sick seriously. My mother had to stay with him in the hospital for a month.

    After they were back, my mother helped my father walk slowly on the country road every day. They were so kind to each other and it seemed they were the happiest couple.

    After two months my father still couldn' t walk by himself. "Dad, how are you feeling now?" I asked him one day.

    "Susan, don' t worry about me," he said. "I just like walking with your mum. I like this kind of life." Reading his eyes, I knew he loves my mother deeply.

    Now I understand that love is just a thread in the quilt of our life. Love is inside, making life strong and warm.

    People are less willing to rely on their knowledge and say they know something when they have access (接近) to the Internet, suggesting that our connection to the web is affecting how we think.

    Professor Evan Risko, of the Department of Psychology at the University of Waterloo, led a recent study where the team asked about 100 participants (参与者) a series of general-knowledge questions, such as naming the capital of France. For half of the study, participants had access to the Internet. They had to look up the answer when they responded that they did not know the answer. In the other half of the study, participants did not have access to the Internet.

    The team found that the people who had access to the web were about 5 percent more likely to say that they did not know the answer to the question. Furthermore, in some cases, the people with access to the Internet reported feeling as though they knew less compared to the people without access.

    “With the popularity of the Internet, we are almost frequently connected to large amounts of information. And when that data is within reach, people seem less likely to rely on their own knowledge,” said Professor Risko.

    Studying the results, the researchers thought that access to the Internet might make it less acceptable to say you know something but are incorrect. It is also possible that participants were more likely to say they didn't know an answer when they had access to the web because online searching offers an opportunity to confirm their answer, and the process of finding out the answer is rewarding.

    “Our results suggest that access to the Internet affects the decisions we make about what we know and don't know,” said Risko. “We hope this research helps us understand how easy access to large amounts of information can influence our thinking and behaviour.”

    People who like travelling have their reasons. They believe that travelling can help them expand their field of view, especially in the geographical and historical sense. They also think that touring will give them more chances to enjoy different kinds of food and experience new things that would never be brought by other activities. But those who dislike travelling also have some reasons.

    Travelling, in my opinion, does more good than harm. Most importantly, it broadens  (使扩大) our mind. We can get in touch with other civilizations (文明), cultures, customs and ideas.

    Through history, most people travelled because of necessity (必要性)—not for pleasure. People travelled just in order to remain alive. They searched for food to eat or places to live in. They sometimes ran away from enemies. This is not to say that no one ever travelled just for the fun of it. In ancient times, for example, rich Romans travelled all the way to Greece to take part in the Olympic Games, and festivals. Of course, some people decided to travel just out of curiosity (好奇心). They wanted to find out what it looked like beyond the horizon (地平线). Also business travel has been going on for centuries. Traders could not only make money but also learn to speak several languages and be introduced to different cultures.

    So, travelling does enrich our mind and draw new ideas to us. There is no doubt that we can get much from it.

    Plastic waste has polluted the Arctic. Two new studies have spied bags, fishing rope and tinier bits of rubbish in the Barents Sea. This sea sits north of Norway, Sweden, Finland and Russia. It mixes with the Arctic Ocean, which is even farther north.

    Plastic waste in the Arctic could harm wildlife and may hint that large volumes of human rubbish are collecting there, says Melanie Bergmann. She is one of the scientists who spotted the waste. She studies Earth's oceans at the Alfred Wegener Institute in Bremerhaven, Germany. She first started counting bits of plastics in the Barents Sea because she kept spotting signs of the stuff there in images taken with deep-sea cameras.

    Bergmann and her colleagues counted pieces of plastic from an icebreaker, a boat designed to break through large blocks of ice in very cold waters. They also tracked plastic pieces they saw during helicopter rides over Arctic waters. The team found 31 pieces of plastic. “That doesn't seem like much, but it shows us that we've really got a problem, one that extends even to this remote area, far from civilization,” Bergmann says. She and her colleagues described their findings October 21 in Polar Biology.

    Another team has also been counting plastics in the area. Those scientists took water from the Barents Sea and counted the number of smaller bits of plastics, called microplastics.

    Plastic in the ocean is dangerous to animals. Some may get caught in rope or bags. And wildlife may swallow bags and other plastic bits. That makes them feel full. But some may eventually starve because they are not getting the nutrients they need to live. Sometimes plastics also may break down in an animal's body and release poisonous chemicals. If another animal later eats the one that swallowed plastic, it too can end up with poisonous chemicals in its body. This, in turn, can travel up the food web, endangering predators (肉食动物) — even people.

    When I was 5 years old, I started losing weight. My parents noticed I was pale and always thirsty. They had me tested to see if my blood sugar was high because they thought that might be causing my symptoms.

    My blood sugar was five times higher than normal. That can be deadly. My parents rushed me to the hospital. That's when my whole life changed.

    The doctors said I had Type 1 Diabetes (糖尿病).That means my body can't make insulin (胰岛素).There's no cure.

    My parents had to give me insulin shots every day and I had to get over my fear of needles quickly. Sometimes I had 10 band-aids on my fingers at once.

    Now that I'm older, I check my own blood sugar and give myself shots. About four years ago, my mom started traveling to rural Guatemala. She goes twice a year to help people in need.

    I have been a Girl Scout since kindergarten. For a Girl Scout project, I put together a team to go to Guatemala to test people there for diabetes. We went for four days last July. We tested 378 children and 100 adults. We found three adults with a different kind of diabetes, called type 2. We also found one little girl with dangerously low blood sugar. She cried when we told her. She had been feeling dizzy and didn't know why. It was like replaying what happened to me when I was little. I talked through a translator, but everyone understood hugs. I gave more hugs than I've ever given.

    Having type 1 diabetes is hard. But I have accepted it readily. It has helped me meet amazing people. It has made me responsible and independent. It has also shown me the power of taking action. I'm going back to Guatemala this summer to test more kids. I want to help as many kids as I can. But my greatest wish is for a cure. Type 1 diabetes changes your life. If no other child ever has to have it, that would be amazing.