Nothing could stop Dad. After he was put on disability for a bad back, he bought a small farm in the country, just enough to grow food for the family. He planted vegetables, fruit trees and even kept bees for honey.

    And every week he cleaned Old Man McColgin's chicken house in exchange for manure(肥料).The smell really burned the inside of your nose. When we complained about the terrible smell, Dad said the stronger the manure, the healthier the crops, and he was right. For example, just one of his cantaloupes filled the entire house with its sweet smell, and the taste was even sweeter.

    As the vegetables started coming in, Dad threw himself into cooking. One day, armed with a basket of vegetables, he announced he was going to make stew(炖菜).Dad pulled out a pressure cooker and filled it up with cabbages, eggplants, potatoes, corns, onions and carrots. For about half an hour, the pressure built and the vegetables cooked. Finally, Dad turned off the stove, the pot began to cool and the pressure relief valve sprayed out a cloud of steam. If we thought Dad's pile of chicken manure was bad, this was 10 times worse. When Dad took off the lid, the smell nearly knocked us out.

    Dad carried the pot out and we opened doors and windows to air out the house. Just how bad was it? The neighbors came out of their houses to see if we had a gas leak!

    Determined, Dad filled our plates with steaming stew and passed them around. It didn't look that bad, and after the first wave had shut down my ability to smell, it didn't offend the nose so much, either. I took a taste. It would never win a prize in a cooking competition, but it was surprisingly edible, and we drank up every last drop of soup!

    Energy goes from one plant or animal to another. A food chain shows how this energy moves. Each time an animal gets eaten, its energy is passed onto the animal that eats it. The food chain is very important because it keeps the balance of nature. If one part of the food chain disappears, it can affect all the other plants and animals. Any threat to the food chain is a threat to the environment's biodiversit(生物多样性). The food chain helps keep animal populations in balance. However, if something happens to increase or decrease one of the links in the food chain, that balance is broken. If one animal becomes endangered, it puts all the animals above it at risk.

    Some of the threats are natural, such as wildfires, hurricanes, tornados, floods and so on. But the biggest threats to the food chain come from you and me. These threats include overhunting, overfishing, logging, farming, development, pollution, etc. The food chain is endangered anywhere humans have had an effect on the natural environment.

    A recent study shows that the overfishing of large sharks is damaging the food chain along the US Atlantic coast. Canadian and American scientists say sharks are being killed in great numbers for their meat and fins(鳍). Now, not enough sharks are around to eat the cownose(牛鼻) ray. The ray's population has increased and they have eaten up the shellfish to the point where it has hurt commercial(商业的) fishing.

    Many of us disturb the natural environment in our own backyards. It's up to us to take care of the environment and try not to disrupt the natural food chain. If we don't act responsibly, animals will start disappearing.

    The British live on a small island. They are surrounded by the sea, so it is not surprising that the sea has always played an important role in their lives. After the development of large, ocean­going sailing ships in the fifteenth century, the sea became even more important to the country's development. Ships setting sail from England determined to extend Britain's territories, its wealth and its knowledge of the world. Ships returned to England bringing goods, people and new ideas from foreign places. By the nineteenth century, Britain had the largest, most powerful navy in the world.

    The great sailing ships were so much a part of British life that they even affected the language. Many English expressions we use today were originally nautical (航海的) terms, although most people no longer realize this. For example, people commonly describe an honest and fair business deal as being "above board". This expression was originally used in sailing ship times when secretive, dishonest ship's business would be carried out below decks (below the boards) out of public view. On the other hand, honest business was always conducted on deck (above the boards), in the open where everyone could see what was going on.

    "Pipe down!", meaning "Be quiet!", is another common expression that has nautical origins. The ship's boatswain (水手长) would blow a whistle, or pipe, at the end of the day to indicate (表明) to the sailors it was time to quieten down and go to sleep.

    Most native English speakers have heard the expression "not enough room to swing a cat", but few know that the "cat" does not refer to a small furry animal with four legs and a tail. The "cat" is actually a short form of "cat of nine tails" — a whip with nine, knotted (打结的) tails. A boatswain needed a lot of space in order to swing the whip properly when lashing (鞭打) a poor sailor under his control!

    It is irrefutable: Parents, who talk to, read and engage with their very young children as often as possible, help them build literacy (读写能力) skills at an early age.

    Also certain: Parents of very young children usually have to do a lot of laundry. And low-income families tend to bring their kids with them to public laundromats (洗衣房).

    Those truths appear once a week at select neighborhood laundromats in Chicago. That's when librarians lay down colorful mats and oversized board books beside the industrial washing machines.

    Inside one of about 14 laundromats in the city's low-income neighborhoods, the librarians gather all available children for Laundromats Story Time (LST), a Chicago Public Library (CPL) program.

    With the noise of the washers and dryers, anywhere between a handful to more than a dozen children hear stories, sing songs and play games designed to help their brains develop. The event also aims to instruct parents on how to repeat the experience for their kids, working to raise poor literacy rates in underserved communities.

    "We read books, we sing songs, we do plays," says Becca Ruidl, the CPL's STEAM Team early learning manager, who runs the LST program. "We kind of keep it going so parents can walk in adn join in at any time. But a big part of what we do is model literacy skills for parents so they can do it at home with their kids."

    While a laundromat seems an unlikely place to engage with children, "we really wanted to meet people in the community where they're. "Ruidl says.

    And it clearly meets a need: Library officials say the program is in increasing demand, while Ruidl says families have adjusted their household's laundry day to suit the librarians' laundromat visits. At the same time, LST's co-sponsors—including a laundry industry trade group and Libraries Without Borders, an organization fighting poverty through literacy—have worked with the CPL to draft an instruction handbook to help expand the concept to other U.S. cities.

    How often do you exercise? A new study found that most kids aged 12 to 15 weren't getting enough physical activity. The results were based on about 800 kids. As part of the study, the kids tracked and reported on their own activity levels, and took physical exams.

    U. S. fitness guidelines suggest an hour or more of physical activity every day. According to the study, only 1 in 4 U.S. kids get enough physical activity.

    "It's certainly worrying to see that our kids have such a limited amount of physical activity each day," said Dr. Stephen Pont. He is an expert on children's health.

    Few kids in the study met the guidelines on physical activity that raises the heart rate and makes people breathe harder. Overall, about 25% said they got an hour of that kind of exercise every day. Kids also reported on which activities they did most often outside of school gym class--basketball for boys and running for girls.

    The study found that fat teenagers were less active than normal-weight girls and boys. Fat girls were slightly less active than normal-weight girls, but levels were similar among overweight and normal-weight boys. The study also said that the percent of fat children aged 2 to 19 was 17%, or about 12.5 million kids.

    "There's always room for improvement," said Tala Fakhouri, who was the leader of the study. She also said the results provide useful information to help with fitness campaigns such as Let's Move, which was initiated by Michelle Obama in 2010. To inspire kids to eat right and get in shape, Michelle visits schools and holds exercise events. She also calls on schools to offer regular gym classes.

    The study also found kids who get physical education at school may get better grades.

    There is a popular belief among parents that schools are no longer interested in spelling. No school I have ever taught in has ever ignored spelling or considered it unimportant as a basic skill. There are, however, different ideas about how to teach it, or how much priority (优先) it must be given over general language development and writing ability. The problem is how to encourage a child to express himself freely and confidently in writing without holding him back with the complexities (复杂性) of spelling. That's why teachers often encourage the early use of dictionaries and pay attention to content (内容) rather than spelling.

    If spelling becomes the only focus of his teacher's interest, clearly a bright child will be likely to "play safe". He will tend to write only words within his spelling range, choosing to avoid adventurous language.

    I was once shocked to read on the bottom of a piece of writing about a personal experience. "This work is terrible! There are far too many spelling mistakes and your writing is terrible." It may have been a sharp comment on the pupil's spelling in writing, but it was also a sad sign that the teacher had failed to read the composition, which contained some beautiful expressions of the child's deep feelings. The teacher was not wrong to draw attention to the mistakes, but if his priorities had centered on the child's ideas, an expression of his disappointment with the spelling would have given the pupil more encouragement to seek improvement.