Look at the car. It is Mr. Black's car. It doesn't work now. Mr. Black is under it. He is repairing it. Mrs. Black is near the car. She is helping Mr. Black. A girl is in the car. She is Kate, Mr. Black's daughter. Who is the boy in the car? He is Jim, Kate's brother. It is Saturday today. They don't work. They want to go to Zhongshan Park. They all look worried.

    If you're wondering when you might get the flu, a new study indicates you should keep an eye on your local weather report.

    According to a research published in the Journal of Clinical Virology, if you keep your eye on the weather and watch for the first major dip in the temperature, you can essentially mark your calendar in prediction for an outbreak the flu.

    To figure out how the weather and flu outbreak may be connected, researchers analyzed statistics of 20,000 people in an area over three seasons. The number of people who caught the flu was then compared with local weather data.

    After each season, the team noticed one consistent finding: The first really cold period with low outdoor temperatures and low humidity (湿度) was always followed by a week of a mass influenza outbreak.

    The researchers say that aerosol particles (气溶胶粒子) containing virus and liquid are more able to spread in cold and dry weather. So, in theory, if you sneeze or cough and the surrounding air is very dry, the air will absorb the moisture and the particles containing the virus keep spreading through the air for a longer period of time.

    Luckily there are ways to keep off the illness regardless of the weather. Washing your hands, coughing into the crook (弯曲) of your arm and getting vaccine (疫苗) are the best ways to prevent the flu from spreading. People over the age of 65, pregnant women and young children are at the highest risk of developing complications (并发症) related to the virus, according to the CDC.

    People with an impulsive personality refer to those who tend to do things without considering the possible dangers or problems first. According to a new study by researchers at the University of Georgia, such people may be more likely to have food addiction. The study found that people exhibiting impulsive behavior weren't necessarily overweight, but impulsiveness was related to a direct relationship with food, and therefore, less healthy weight.

    Food addiction has been compared to addictive drug use. Studies have linked the dopamine (多巴胺) release that occurs after tasting delicious food to the dopamine release that happens when people consume other addictive substances.

    Impulsive behavior involves several personality traits (特点). Two of these traits, known as negative urgency and lack of perseverance, were particularly associated with food addiction and high BMI (身体质量指数) during the study.

    Negative urgency is characterized by the tendency to behave impulsively when experiencing negative emotions. Some people might drink alcohol or take drugs. For others, it could mean eating to feel better. Lack of perseverance is when a person has a hard time finishing hard or boring tasks. People with a lack of perseverance might have difficulty attempting to change addictive eating behavior, which could also cause obesity.

    “Impulsiveness might be one reason why some people eat in an addictive way despite motivation to lose weight,” said Dr. Ashley Gearhardt, a clinical psychologist. He was involved in developing the Yale Food Addiction Scale in aid of those people. “We are theorizing that if food addiction is really a thing, then our measure, the Yale Food Addiction Scale, should be related to helping control impulsive action,” said Gearhardt.

    Clinical psychologist Dr. James MacKillop, whose lab was conducting the study, believes that therapies used to treat addictive drug behavior could help people who suffer from addictive eating habits.

    “Most of the programs for weight loss at this point focus on the most obvious things, which are clearly diet and exercise,” MacKillop said. “It seems that managing strong desires to eat would naturally fit in with the skills a person would need to eat healthily.”

The Grand Canyon(大峡谷)Helicopter Tour

    You'll discover the natural beauty of the Grand Canyon as your helicopter flies to the west edge，passing over Lake Las Vegas，Lake Mead and the Hoover Dam．During the flight，you can listen to a recorded introduction to the Grand Canyon and its surroundings via headphones．At noon，you'll land for an unforgettable champagne picnic，3，200 feet below the edge．While you share a bottle of champagne，your pilot and guide will be happy to answer any questions you may have．Your flight ends with a low-level pass over the famous Las Vegas Strip．On landing，a comfortable car is waiting to bring you back to your hotel．

    Each helicopter carries a maximum of 6 people including your pilot．For a roomier experience，upgrade your flight to an EC-130 helicopter which provides larger leg room and can accommodate more weight per seat．See Additional Info for details on weight restrictions．

Pricing Information

    Services included：45-minute(approx)flight each way，hotel pickup and drop-off by   limousine，lunch．

    Our price is constantly updated．Click to check pricing & availability on your preferred  travel date．

    Additional Information

    The maximum weight per passenger to ride in an A-Star helicopter is 2751bs．If passengers weigh in between 2751bs and 3001bs，you will be required to upgrade to the    EC-130．

    Pickup is available from selected Las Vegas hotels．You must contact the local travel    agency to fix your pickup time．

    All flight times are approximate and might be influenced by weather conditions．

    Traveler Review

    This is an absolute must do．The view of the Grand Canyon at his height was absolutely amazing! Our pilot was funny，knowledgeable and a great guide．All the staff from booking to check-in and helicopter departure were fantastic．I would recommend this tour to everyone．

    From now, if all goes well, a high-tech spacecraft will land in the South Pole of the moon. There, it will drill 66 feet down into the surface(表面) and collect samples of the mantle(地幔样本) to bring back to the earth.

    But before it leaves, it will have a two-part time capsule(时光胶囊): a public part, full of the Earth's history, and a private part, full of digital(数码的) memory boxes created by individuals(个人). These memory boxes can hold digital files — records of family trees, videos or actual DNA in the form of human hair. Not everyone can have a digital memory box, though. The boxes are only delivered for the people who donate the money to the project.

    The project, called Lunar Mission One, has already raised more than half of its ￡600,000 goal since its launch(启动) just a few days ago. The founders thought that it would succeed because of the attraction of both exploring the moon surface and leaving a time capsule behind. The mission was a technical action, but it was also an emotional one, bringing the excitement of knowing that something humans built on the Earth reached somewhere else in space.

    Still, it does seem risky(冒险的) for a person to donate￡60 to keep a digital memory box for a project that won't come true until 2024. What if the project never takes off? What if the technology isn't good enough? What if those digital memory boxes break on the moon's surface? And how will anybody ever even know if that happens? Ian Crawford, a professor at Birkbeck College in London and scientific advisor to the mission, says it is not necessary to worry about these. The plan to leave a time capsule on the moon isn't really about physically leaving something on the moon — it's more an opportunity to encourage people's interest in space.

    Chrysanthemums (菊花) are to the fall what tulips are to the spring.

    In ancient China chrysanthemums (or 'mums' for short) were first planted thousands of years ago. People chose the chrysanthemum as their Flower for October a symbol of the rest and ease that followed the season's final harvest. Then they symbolized a scholar in retirement (隐居) and were one of the four noble(高贵的) plants along with bamboo, the plum flower(梅) and orchid(兰).

    The Japanese hold the chrysanthemum as a symbol of the sun. They consider the orderly unfolding of its petals(花瓣) to be a symbol of perfection. They also think that a single chrysanthemum petal placed in the bottom of a wine glass encourages a long and healthy life. The Japanese even have a National Chrysanthemum Day on September 9 known as the Festival of Happiness.

    In the United States during colonial times its popularity grew such that mums now reign as "Queen of the Fall Flowers." Mums remain the most widely grown pot plant in the country and the largest commercially produced flowers. Chrysanthemums generally represent cheerfulness and rest. So they are welcomed throughout the British Isles and North America for any occasion such as football games and parties.

    In other countries such as Italy Belgium and Austria however their association with the dead makes chrysanthemums acceptable only for funerals and graves.