What if our babies could somehow tell us what they're thinking about, what they want, and what makes them unhappy? Robyn Holt, researcher for Baby Talk New Zealand, says they can. Holt heard about baby sign language through an advertisement and decided to go along to a workshop (研讨会).

    “Sign language is something that's always interested me, and I thought, it could be really cool to try this with a baby because we are always guessing all the time what they actually want.”

    Holt started using baby sign language with her baby son Benjamin, now 12, and within two weeks he started to sign the sign for milk. She has since used it with her two younger sons Dominic, 8, and Matthew, 3.

    Baby sign language is nothing new: the practice (which is based on adult sign language) has been out in America for more than 30 years. But it is enjoying a rebirth in New Zealand.

    The idea behind baby sign language is that babies do have the ability to communicate their needs if they are given the right tools to do so. Although many mothers develop an intuition (直觉) about whether their baby's crying is from hunger, tiredness, or pain, baby sign language creates a direct form of communication that unlocks the mystery.

    When babies are between 6-months and 12 to 13-months, parents can begin to teach them sign language: use the sign for milk while feeding, and also talk about milk, so that the child begins to make the link (关联) in their brain. Then they can begin to add other signs, i.e. food, sick or pain.

    “I know of one parent. Her child was signing the sign for hurt by his mouth, and she realised his first teeth were growing. It makes life so much easier,” said Holt.

    Play allows children to use their creativity while developing their imagination and physical, cognitive（认知的）, and emotional strength. Play is important to healthy brain development. Play allows children to create and explore a world they can master, conquering their fears while practicing adult roles. Undirected play allows children to learn how to work in groups, to share, to negotiate, and to resolve conflicts.

    Ideally, much of play involves adults, but when play is controlled by adults, children acquiesce（顺从）to adult rules and concerns and lose some of the benefits play offers them, particularly in developing creativity, leadership, and group skills. In contrast to passive entertainment, play builds active, healthy bodies. In fact, it has been suggested that encouraging unstructured play may be an exceptional way to increase physical activity levels in children, which is one important strategy in the resolution of the obesity problem.

    Children's development is critically influenced by appropriate, affective relationships with loving and consistent caregivers as they relate to children through play. When parents observe their children in play or join with them in child-driven play, they are given a unique opportunity to see the world from their children's vantage point as the child navigates a world perfectly created just to fit his or her needs. The interactions that occur through play tell children that parents are fully paying attention to them and help to build enduring relationships. Parents who have the opportunity to look at their children's world learn to communicate more effectively with their children aid are given another setting to offer guidance. Less verbal children may be able to express their views, giving their parents an opportunity to gain a fuller understanding of their perspective. Quite simply, play offers parents a wonderful opportunity to engage fully with their children.

    Play is essential to the academic environment. It ensures that the school setting attends to the social and emotional development of children as well as their cognitive development. It has been shown to help children adjust to the school setting and even to strengthen children's learning willingness. Social-emotional learning is best integrated（融合）with academic learning; it is concerning if some of the forces that enhance children's ability to learn are improved at the expense of others. Play and unscheduled time that allow for peer interactions are important components of social-emotional learning.

    The bus screamed to a stop in Nazareth, Israel. Five Australian backpackers boarded and struck up a conversation with me. They asked typical travelers' questions—where was I going and why was I traveling alone? My plan was to travel with a friend of a friend, I explained, but when I called her that morning, she didn't pick up and I had no other way to reach her. My stomach was in knots, but I decided to head out anyway, thinking I might run into her if I traveled to Tiberius, where we had planned to go together.

    "Why don't you travel with us?" one of the backpackers offered. They were experienced adventurers who would work for a few months, save, then travel for as long as they could. Their current plan was to explore the Middle East and Europe in three months while working in London.

    It seemed risky to travel with strangers, but my instinct said yes. For the next two weeks, I explored Israel with the backpackers and learned to trust my instincts in all types of new and interesting situations. When they hook a ride, I took the bus, but when they wanted to steal into the King David Hotel's swimming pool, I led the way. The world opened up to me because I chose to travel alone. I joined complete strangers, who become close friends. Years later, one couple from the backpacking group even flew from Sydney to Phoenix to be in my wedding. The trip was such a special experience that it gave me confidence in all areas of my life. Since then, I've backpacked alone across South Africa, sky-dived from 12,000 feet in New Zealand and even moved across the U.S. with no job lined up.

    On my third day wandering in Israel with my new friends, I bumped into the woman I was supposed to meet. Though I was happy she was all right, I was grateful she hadn't picked up the phone.

    Some colors people see late at night could cause signs of clinical (临床的) depression. That was the finding of a study that builds on earlier study findings. They show that individuals who live or work in low levels of light overnight can develop clinical depression. Doctors use the word "clinical depression" to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.

    In the new study American investigators designed an experiment that exposed hamsters (仓鼠) to different colors. The researchers chose hamsters because they are nocturnal which means they sleep during the day and are active at night.

    The animals were divided into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light a third group slept in front of a white light while a fourth was put in front of a red light.

    After four weeks the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.

    Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. "What we saw is that these animals didn't show any sleep uneasiness at all but they did mess up biological clock genes and they did show depressive sign while if they were in the dim (微弱) red light they did not."

    He notes that photosensitive (感光) cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle.

    He says there's a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.

    Are you interested in movie musicals? Here are some best movie musicals you need to watch.

    Singin' in the Rain (1952)

    Debbie Reynolds (the heroine) is ultra-charming in this time-honored classic musical about the coming of the talking pictures in movie history. She plays a winning showgirl with a golden singing voice designed for Hollywood stars. You can also see how Gene Kelly (the hero) made a hit in the timeless "Singin'in the Rain".

    The Sound of Music (1965)

    It hit the big screen in 1965 and became an early blockbuster. It's one of those movies that everybody watches again and again. Whether you're singing along to "Do-Re-Mi" or "My Favorite Things", you'll still think of the cute Von Trapp children and the beautiful Austrian setting. Christopher Plummer (the hero) is wonderful as the serious captain melts into gentleness when singing "Edelweiss". And Julie Andrews (the heroine) shows her addictive voice in such songs as "I Have Confidence".

    Chicago (2002)

    Renee Zellweger and Catherine Zeta-Jones sing and dance as criminals in this musical about fame, envy, and murderous love. Famous songs include "Cell Block Tango", where female criminals sing about how they ended up in jail. It won Best Picture, Best Actress in a supporting role, Best Art Direction-Set Decoration, Best Costume Design, Best Film Editing, and Best Sound in Oscar 2003.

    La La Land (2016)

    Struggling actress Mia (Emma Stone) and ambitious jazz pianist Sebastian (Ryan Gosling) begin a romance as they both follow their heart in the path of their dreams in Los Angeles. It won Best Performance by an Actress in a leading role, Best Achievement in Directing, Best Achievement in Cinematography, Best Achievement in Music Written for Motion Pictures, and Best Achievement in Production Design in Oscar 2017.

Animals are humans' best friends. Here we will know about some of those interesting friends.
       Gouldian Finch

Native to Australia, the Gouldian finch has special green, yellow, red and black markings. For the males (雄性), the part between the neck and the stomach is bright purple, while for females, this part is pale purple. We all Have to agree that nature has created some really great animals with the smallest of details.

Keel-Billed Toucan

It is the very same crazy bird from the movie Rio, also known to be the "rainbow billed toucan". The bird has a black body and a yellow face. The color of its bill (喙) is a combination of green, yellow, orange and red, and that's how the name rainbow billed toucan came from. It is rarely seen alone. It travels in small groups of about six to twelve individuals.

The Oriental Dwarf Kingfisher

It is a great tiny bird commonly found in South Asia. This bird is the most brightly colored and the smallest kingfisher species. Its special feature is the orange with bluish-purple head, which can be easily recognized. The throat is white with bright orange colored lines at the bottom. It is a pretty and small bird.

Poison (毒) Dart Frog

It is a kind of very beautiful creature. The bright colors of the poison dart frog send a warning to its natural enemies about its poison. Found in South America, with some of the brightest shades of yellow, copper, red, green and blue, this frog is among those very animals that you have to watch out in the Amazon Rainforest.