Dictionaries are not closed books. There is still plenty of room for more words in these great vocabulary authorities.

    Dictionaries are not closed books. There is still plenty of room for more words in these great vocabulary authorities. New words are continually being created and added to our language. And many of today's word experts can credit a famous mathematician with the creation of the method by which they develop many new words. The mathematician was an Englishman named Charles L. Dodgson. In addition to working with figures, Dodgson wrote books. His imaginative stories and poems have made Dodgson beloved to generations of readers. We know him, however, not by the name of Dodgson but by his pen name, Lewis Carroll.

    Lewis Carroll has delighted countless readers, young and old, with Alice in Wonderland, Through the Looking Glass, and numerous poems. In these works, Carroll developed dozens of nonsensical words such as "chortle" and "galumph". Many of these words are combined naturally with more common words in the English language. Carroll referred to his made-up words as "portmanteau" words, named after a kind of leather suitcase that opens into two compartments. The name was well suited, because most of Carroll's words had two compartments. Rather than being entirely fabricated（虚构）, they were usually made from the combined parts of two different words. A "snark", for example, clearly came from a snake and a shark.

    Although Carroll died long ago, his technique continues to be used today. We clearly see his influence in such words as smog, brunch, and guesstimate.

    Imagine being a crew member, hundreds of years ago, sailing in southern waters. Your captain is searching for food while exploring unfamiliar waters. Your job is to watch the sea off the ship's side for ice. The wind is cold on your face. Alongside the ship, a fish darts past. Another slows to a stop and raises its head above the water to look at you. How could a fish do that?

    Did the sailors see fish with feathers or swimming birds? Today, we know that the sailors saw birds that developed the ability to swim. Their wings became flippers, and they could “fly” through the water with amazing speed.

    There are many types of penguins. Only two kinds raise their young on the continent of Antarctic. Adelie penguins grow up to 29 inches tall and have a white ring around each eye. Emperor penguins have yellow orange color near their necks. Standing about 35 inches tall, they are the tallest penguins living today.

    Emperor penguins have nests on top of their feet. Father Emperor penguins keep the egg on top of their feet for more than two months, until the egg is ready to hatch. The mother penguin goes out for food during that time. Imagine holding an egg on your feet for two months until someone returns with food!

    Male and female penguins are both good parents. Once the chicks hatch, both parents travel long distances to find food for them in the sea. It may be days before the parents return and the chicks eat again. When they return with food, the fun really begins. Chicks chase their parents, begging for food. Penguin chicks eat huge amounts at one time.

    Eventually, the adult penguins stop feeding the chicks. This is nature's way of forcing children to grow up. When the penguin chicks are hungry enough, they find their way to the sea. Without any swimming lessons, they make their way into the icy waters and swim as only penguins do.

    Improve your memory

    Do you find yourself forgetting where you left your keys or blanking out information on important tests?{#blank#}1{#/blank#}Before your next big exam, be sure to check out some of these tried and tested ways of improving memory.

    Focus your attention on the materials you are studying. Attention is one of the major components (组成部分) of memory. In order for information to move from short-term memory into long-term memory, you need to actively attend to this information.{#blank#}2{#/blank#}

    Structure and organize the information you are studying. Researchers have found that information is best organized in related groups.{#blank#}3{#/blank#}Or you can make an outline of your notes and textbook readings to help group related concepts (概念).

    {#blank#}4{#/blank#}When you are studying unfamiliar material, take the time to think about how this information relates to things that you already know. By establishing relationships between new ideas and previously existing memories, you can greatly increase the likelihood of recalling (回想起) the recently learned information.

    Pay extra attention to difficult information. Remembering information at the beginning or end of an article is easy. However, recalling information from its middle can be difficult.{#blank#}5{#/blank#}Another way is to try restructuring what you have learned so it will be easier to remember. When you come across an especially difficult concept, devote some extra time to memorizing the information.

A.Use this approach in your own studies.

B. Try grouping similar concepts and terms together.

C. Relate new information to things you already know.

D. Repeat the information you are studying to improve memory.

E. Try to study in a quiet place and concentrate on your learning.

F. Fortunately, there are things that you can do to help improve your memory.

G. You can overcome this problem by spending extra time memorizing this information.

    Gesture is the use of such movements to express thought, emotion, etc. A gesture can be many things. Slamming a book shut shows anger and frustration. Opening a door lor someone shows kindness. Gestures go much beyond small actions.

    My friend once told me a story in high school. One day he met a girl who was on the girls' basketball team. He said hello, gave her a hard handshake and wished her good luck as she had a game later. He came to find out he saved that girl's life. She had planned on committing suicide and by shaking her hand and saying good luck, he made her realize someone really cared about her. I'm not saying all actions are going to change someone else's life that much, but it may make their day better.

    Gestures can be negative too. In my senior year of high school, a guy on my football team was late and was walking down the field to practice. Everyone on the team knows our coach hates it when people are late and walk on the field. He was walking in as if he owned the place and had no care of what his teammates were thinking. His body language had never been good. The other players on the team had never liked him because of his body language.

    Gestures can often say more than a person wants. One day I was mad at my parents for some pointless reason. All day I stayed downstairs. When one of them walked by, I would just stare at the TV or my phone and hope they wouldn't try to start a conversation. When they tried to talk to me, I would give one-word answers. Sitting on the couch and watching TV by myself all day was not my intent but that was what my gestures told my parents.

    One simple gesture can change a person's thoughts, day or maybe even save their lives. If everyone made a nice gesture to someone else every day, our school, town, and world would become a better place. One single act of random kindness at a time or a kind gesture can change the world.

    Nola (August 21, 1974 -November 22, 2015) was a northern white rhino（犀牛）who lived at the San Diego Zoo Safari Park near Escondido, California. At her death, she was one of only four remaining northern white rhinos in the world. The other three lived in Kenya. World Rhino Day, held on September 22, is to raise awareness of the less than 30,000 other rhinos left on Earth.

    "Rhinos need our help today, not tomorrow," Nola's lead keeper Jane Kennedy said. "Last year we lost over 1,200 rhinos just in South Africa. If we continue to lose more than 1,000 rhinos a year, in 10 to 20 years all the rhinos on the planet will be gone."

    "Unfortunately, most animals are in danger of dying out because of humans," Kennedy says." Humans have either poached（偷猎）animals, or because there are over seven billion of us, we've taken up too much of the world's resources ". Poachers illegally hunt rhinos for their horns. They sell the horns for thousands of dollars per pound, to be used for art, jewelry, and decorations. Experts believe that one rhino is poached every eight hours.

    In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a program through which researchers have collected cell (细胞) samples from more than 8,000 different types of animals, including the northern white rhino. Scientists hope that by studying the rhino cells, they will get greater understanding of it, and will find ways to increase its numbers.

    Jane Kennedy describes World Rhino Day as "a celebration of rhinos along with an awareness campaign for everybody across the world to know that rhinos need our help." At the San Diego Zoo, children and adults are welcome to visit and speak with zookeepers to learn about rhinos. But you don't have to live in San Diego to celebrate World Rhino Day. It is observed around the world, with zoos and wildlife parks holding special events and programs to teach people about rhinos, and enable them to see the animals up close. For more information, go to www.worldrhinoday. org.

How to make the most of your time with your host family

Living and studying abroad can be a meaningful and enriching experience. And living with a host family is one of the best ways to immerse (沉浸) yourself in the culture. {#blank#}1{#/blank#}Here are some tips on making the most of your time with your host family.

{#blank#}2{#/blank#}You have to understand that host families are doing it just because they want to give a kid the opportunity to live abroad. They are willingly changing their lives so you can experience this! With their support, things become easier.

Many people struggle to feel comfortable with their host families at first. This is a completely normal feeling! You've just left everything you've known for years behind to start a new life. It's okay to be confused. {#blank#}3{#/blank#}While you may know the language, some expressions can be hard to understand at first. Be patient with yourself and remember that you will adapt but it will take some time.

Feeling at home can be difficult at the beginning. That's why spending time in common areas is necessary. If you spend all your time in your room, it's going to be hard to feel like you belong. Joining in everyday activities with your host family will help you create a family bond. For example, some families like having dinner together on weekends. Make time for those moments.{#blank#}4{#/blank#}

Communication is key. If you are unsure about something, ask! It's normal to know few customs and habits at first, so instead of doing things blindly, just ask. Your host family will understand and help you. {#blank#}5{#/blank#}When you are out with your host family, ask them about these, and keep learning them when you are on your own!

A. The language barrier can also be a struggle.

B. Showing gratitude will take you a long way.

C. Keep in mind that when in Rome, do as the Romans do.

D. Then, you'll have chances to expose yourself to their language.

E. It's also normal not to know a lot about unspoken social rules of the country.

F. Not only will they appreciate it but you will also feel like a part of their world.

G. However, living with a foreign family can be difficult and adapting to it can take some effort.