Born on August 9,1963,New Jersey,Whitney Houston almost seemed bound to become a singer.Her mother Cissy Houston was the choir（唱诗班）minister at New Hope Baptist Church,and it was there that a young Whitney got her start.

    When she was 19,Whitney Houston was discovered in a nightclub by the famous Clive Davis of Arista Records. In 1983,Houston made her debut（首演）on national television.In 1985,she released her debut album Whitney Houston and almost immediately became a sensation.Over the next year,her hit singles Saving All My Love for You and How Will I Know helped the album reach the top of the charts,where it staved for fourteen weeks in a row. Houston won a Grammy in 1986 for Saving All My Love for You.

    By 1992,Whitney Houston was on top of the world,but her life was about to get very complicated very quickly. That year she married the R&B singer Bobby Brown.At first the marriage was passionate and loving,but things turned sour as the decade progressed and both Brown and Houston battled drug abuse.

    In spite of these growing personal troubles,Whitney Houston continued to progress in her career,crossing over successfully into acting in 1992 by starring in The Bodyguard.Her single from the movie,I will Always Love You, proved to be Houston's biggest hit ever,spending a record-breaking fourteen weeks on top of the US charts.

    In the late 1990s and early 2000s,Whitney Houston's increasingly rocky marriage,struggles with drug and health problems threatened her career.Over the next few years,Houston attempted to break her drug habit and divorced Bobby Brown in 2007.

    After almost a decade of struggling with her personal life,Houston seemed to be pulling herself together.She released a new album,I Look to You,in 2009.The recording received a warm welcome from music fans.

    In early 2012,Houston worked on a new musical film Sparkle with Jordin Spark.Unfortunately,Houston didn't live long enough to see it.

    Whitney Houston died on February 11,2012,in Los Angeles.With her passing,the music world has lost one of its most outstanding stars.

    Ever get that feeling you're being watched? Well, if you're a dog-owner, you may have a point. Dogs are able to watch people's interactions with one another to determine who holds yummier treats, according to a new study. This study joins others that show dogs are good observers of human behaviors and feelings. It offers evidence that dogs use information not only from people's direct interactions with them, but also their interactions with one another.

    In the study, dogs watched a man ask two women for some of their corns. Both women gave the man corns when he asked, but in response to one woman, the man showed his enthusiasm and said the corns were so delicious. In response to the other woman, he gave the corns back and called them gross（in Spanish；the study was conducted in Argentina）. After these interactions, the man left and an assistant holding the dog let the dog go. While many dogs didn't approach either woman, the dogs that did have a preference tended to prefer the woman with the yummier(美味的) food.

    Other studies of dogs' people-watching ability have found dogs are able to tell the difference between happy and sad faces in their owners. They prefer people who give others food when asked over people who don't give others food. And in one study, dogs turned toward crying people more often than toward talking people.

    So how much do dogs really understand about the humans around them? That's not totally settled yet. In a strange twist to the Argentine study above, when the researchers tried an experiment in which they put two plates of corns on a table and had a man react to each plate, dogs didn't preferentially approach the tastier plate afterward. You could say dogs watch for the interaction between two persons, not just how a person reacts. Yet a previous study found dogs will choose boxes that people reacted to happily, but not boxes people reacted to with a disgusted face.

    Well, either way, you can be sure Fluffs is keeping an eye on you, to the best of her ability. The study was published in the journal PLOS One.

    The world seems gloomy(阴沉的)and gray when you're feeling blue. In fact, being down might even affect how you perceive(感知)the color blue. A recent study about color was published in the journal Psychological Science. It shows a direct connection between a person's ability to perceive color and their emotions.

    Psychologists have long known that emotions can affect the way people perceive things. That's in part because chemicals from your brain might affect how you process what you see. “Color is such an important part of our experience,” says lead author Christopher Thorstenson, a psychologist at the university of Rochester, in New York. There's reason, he says, that sad people commonly describe the world as “colorless” and “gray”, and happy people use words like “bright” and “colorful”.

    In the experiment, the researchers randomly assigned people to one of two groups. People in the “sadness” group watched a sad scene from The Lion King. Those in the “amusement' group watched a comedy.

    Everyone was then asked to look at red, yellow, green, and blue patches(斑点)that had been changed to a grayish color. “Some of the patches are pretty difficulty to make out,” Thorstenson admits he says it takes some time to figure out their shade. People were scored on how accurate their color perception was. Then they completed an emotional evaluation.

    The result? Sad people had a hard time seeing the difference between shades along the blue-yellow color axis(色轴). But they did no have problems seeing colors in the red-green spectrum(光谱). Thorstenson says this could be the result of an evolutionary need to see red as a response to anger.

    Thorstenson says these results highlight the possible important of dopamine in sight. Dopamine is a chemical that sends signals to the brain. Researchers are hoping to focus more on dopamine in the future. “We know dopamine affects how we see colors, too,” Thorstenson says “How we feel can really influence how we see the world around us” he says.

    On a clear night, you can see a sky paced with stars. But you can't see planets orbiting any of these stars, even with the strongest Earth—based telescopes. Astronomers reported that they discovered seven Earth—sized planets orbiting a nearby star called TRAPPIST – 1 in February. They had to rely on indirect evidence to tell them that the planets are there. By doing some math, they figured out the number of planets and the distance of their orbits.

    TRAPPIST – 1 is a red dwarf （红矮星）, much smaller than our sun, but larger than Jupiter (木星). If the sun were the size of a basketball, TRAPPIST – 1would be the size of a gold ball. This star is one of our closest neighbors, just like the moon to the earth in space.

    When astronomers using Earth-based telescopes to study TRAPPIST – 1,they noticed that every once in a while, it became slightly dim（昏暗）. They decided that a planet must be passing in front of the star, blocking part of the light. This dimming would come and go as the planet orbited the star, passing alternately (交替地) behind and in front of the star regularly.

    By making careful observations, astronomers expected to get a rough idea of the planet's size from the pattern of dimming light. But the light level changed often and not at evenly spaced (均匀间隔的) times. The astronomers had to conclude they were looking at more than one planet! To get additional data, NASA's spritzer Space Telescope measured TRAPPIST –1's brightness nearly continuously for 20 days, catching 34 crossings of planets in front of the star. Sorting through the mess of data, the astronomers found that the innermost planet completes its orbit in 1.5 Earth days, while the outermost planet takes 20 days. Once you know how long it takes each planet to complete an orbit, you can work out how far it is from the star compared with the other planets.

    The TRAPPIST – 1 planets are not alone. So far, astronomers have found more than 3,400 planets that orbit other stars.

Summer Camps in Season!

    STEM Camp July 10 to August 14, Cost: $180

    90% of the jobs in the future will require STEM (Science, Technology, Engineering & Mathematics) education. We find ways to make learning fun and exciting for students to help ensure their futures. Campers participate in fun and engaging STEM activities! Register:www.stemcamp.ca or Call:519-475-6600.

    Kandalore June 15 to 28, Cost:$2，340

    The finest traditional camp in Canada, providing the best of both canoe(皮划艇)adventures and in-camp activities. For more than 65 years, Kandalore has given campers the opportunity to know and be themselves. We create a warm and supportive environment where kids can express their unique self, grow in self-confidence and build lifetime friendships. Register:www.kandlore.com or Call:416-322-9735.

    ESL Summer Camp June 25 to July 21, Cost: $5,500

    Pickering College has an exciting ESL summer camp for students aged 12-18 who want to learn English and experience the wonders of summer at our 42-acre campus; students enjoy the excellent dormitory, dining, academic, and social facilities of one of Canada's oldest independent schools. Register:www.pickeringcollege.ca or Call:905-175-8900.

DEEP Summer Academy August 16 to 26, Cost: $465

    We provide highly motivated high school students from across the world with the opportunity for advanced study in a variety of engineering, technology, business and science subjects. Organized by University of Toronto, DEEP is one of the most diverse pre-university engineering programs all over the world with scholarships. Register:www.outreachengineering.ca or Call:416-946-0816.

    A traditional Chinese cough syrup (糖浆), called Nin Jiom Pei Pa Koa (念慈庵川贝枇杷膏), is flying off the shelves in New York stores this flu season, following a US news report.

    According to a report in The Wall Street Journal last week, Mr. Alex Schweder, a professor of design at Pratt Institute suffering a cough for about 10 days, felt better 15 minutes after he drank a bottle of Nin Jiom Pei Pa Koa. It had been recommended by his girlfriend, who first learnt about the cough syrup 30 years ago when she was living in Hong Kong.

    Mr. Schweder was shocked by the magical effects of the cough syrup, and recommended it to many people. This, together with other factors, soon made the Chinese medicine popular in New York City.

    A 300ml bottle is now sold at US$13.29 on Walmart's website. This is more than double the former price in some pharmacies (药店) in Manhattan's Chinatown, selling at about US$6 per bottle. "The number of Nin Jiom Pei Pa Koa we sold over the past few days was much more than usual," said Winnie, a sales staff member of Buy-rite pharmacy in Chinatown. "More and more Westerners are accepting this medicine because it is effective," she said.

    According to the Kingworld Medicines Group's official website, Nin Jiom Pei Pa Koa is made of "valuable Chinese herbs and honey, and has surprising effects in treating coughs." However, experts warn that taking the cough syrup can carry health risks, including when it is used with other medicines, used too much or taken instead of prescription medication (处方药).

    Dr. Keith Brenner, a specialist in pulmonary medicine at Columbia University Medical Centre New York Presbyterian Hospital, said, "I think people who use these things may not even tell the doctor about them, and it's a problem."