While serious training is important for all dogs, playtime is just as important.{#blank#}1{#/blank#} Use these games to help teach your dog how to play.

1）Hide and Seek

    Hide and seek isn't just for kids. Dogs can really enjoy this game. Pick up one of your dog's favorite toys or treats. Tell your dog to stay.{#blank#}2{#/blank#} When you are ready, call your dog to come to you. If possible, squeak(使吱吱叫)the toy or shake the treats. Reward your dog with praise and the toy/treat when she finds you.

2）Fetch

    Many dogs have a natural ability to fetch. Other dogs can be taught how.{#blank#}3{#/blank#}Play indoors with a soft toy or outdoors in a fenced-in area with a ball or disc. For dogs that really  love to run, try this game of fetch!

3）Find the Treat

    Dogs have superior senses of smell, and most love to use their noses to find food. Let your dog use her brain and her nose to find hidden goodies. First, have your dog stay out of sight. Then, hide her favorite treats in various places around the room.{#blank#}4{#/blank#} If help is needed, you can lead her around or point to areas for her to explore.

    Whatever the game, safety comes first! Remember to watch your dog for signs of exhaustion or overheating when you are playing. Stop if your dog seems tired or shows signs of anxiety. {#blank#}5{#/blank#}When other dogs or people are around, it may create a dangerous distraction(分神).

A. Then, go to find a good hiding place.

B. Try different games to see which your dog responds to best.

C. A good game of fetch can be played almost anywhere.

D. You can include games in training as well.

E. Also be aware of your surroundings when playing with your dog.

F. Encourage your dog to play with other dogs.

G. Bring your dog back in and tell her to “go find!”

    Deborah Cohen is a senior natural scientist at the Rand Corp and the author of the book A Big Fat Crisis: The Hidden Forces Behind the Obesity Epidemic and How We Can End It. According to the book, there are lots of misunderstandings of obesity.

1).If you're obese, blame your genes.

    Obesity rates have increased. Yet, between 1980 and 2000, the number of Americans who are obese has doubled—too quickly for genetic factors to be responsible.

    At restaurants, a dollar puts more calories on our plates than ever before, because restaurant meals usually have more calories than what we prepare at home, so people who eat out more frequently have higher rates of obesity than those who eat out less.

2).If you're obese, you lack self-control.

    Research shows that if we are faced with too much information, we have a tendency to make poor dietary choices. Our world has become so rich in temptation that we can be led to consume too much in ways we can't understand. Even the most vigilant (警觉的) people may not be up to the task of controlling themselves.

3).Lack of access to fresh fruits and vegetables is responsible for obesity.

    Although the US Department of Agriculture estimates that fewer than 5 percent of Americans live in the “food deserts”, about 65 percent of the nation's population is overweight or obese. For most of us, obesity is not related to access to more fresh fruits and vegetables, but to the choices we make in supermarkets.

4).The problem is not that we eat too much, but that we don't exercise.

    Michelle Obama's “Let's Move” campaign is based on the idea that if kids exercise more, childhood obesity rates will decrease. But there was no significant decrease in physical activity levels as obesity rates climbed in the 1980s and 1990s. In fact, although a drop in work-related physical activity may account for up to 100 fewer calories burned, leisure physical activity appears to have increased. The problem is that we eat too much.

    The UN refugee agency (难民署) is heaping pressure on Europe to help Italy defuse (平息) the “unfolding tragedy” of tens of thousands of migrants flooding its shores. Italy needs more international support to deal with a growing number of migrants who have braved a risky Mediterranean crossing to reach Europe this year, UN High Commissioner for Refugees Filippo Grandi said on Saturday.

     “What is happening in front of our eyes in Italy is an unfolding tragedy,” Grandi said in a statement. “In the course of last weekend, 12,600 migrants and refugees arrived on its shores, and an estimated 2,030 have lost their lives in the Mediterranean since the beginning of the year.” Italy, he said, was “playing its part” in taking in those rescued and offering protection to those in need. “These efforts must be continued and strengthened. But this cannot be an Italian problem alone.”

    Separately, a source in Paris said the interior ministers of France, Germany and Italy would meet in the French capital on Sunday to discuss an approach to help Rome.

    Violence in Calais

    Europe has been dealing with the worst migration crisis since the end of World War II with the arrival of large numbers of people fleeing the wars in Syria and Iraq while others from Africa are seeking an escape from poverty or political persecution (迫害).

    In the northern French port city of Calais, police stepped in over the past two days to break up fighting among African migrants armed with sticks and rocks. Calais has for years been a magnet (磁铁) for migrants and refugees hoping to cross the Channel to Britain.

    Last October, France broke up the disreputable tent camp known as “the Jungle” transferring thousands of migrants to centers around the country. But hundreds remain near the port, mostly Africans and Afghans, who fight sporadically with police as they make nightly attempts to stow away (偷乘) onto trucks heading across the Channel to Britain.

    The pillage (掠夺) and destruction of ancient shipwrecks and sunken archaeological sites by treasure hunters seeking gold and other valuables may be illegal under the terms of an international treaty under discussion by UNESCO's 188 Member States.

    "Protecting our underwater heritage is extremely important and increasingly urgent as no site or shipwreck is now out of bounds for treasure hunters. New technologies have made deep-water wrecks easily accessible and these technologies are getting cheaper," warns Lyndel Prott.

    According to estimates by commercial salvors (寻宝者), there are some three million undiscovered shipwrecks scattered across the world's oceans. Even the figures for the known wrecks are impressive. The Northern Shipwrecks Database for example contains 65,000 ship loss records for North America alone from 1500 AD to the present. The Dictionary of Disasters at Sea by Charles Hocking (1969) lists 12,542 sailing ships and war vessels lost between 1824 and 1962.

    Then there are sunken cities such as the trading town and pirate stronghold(海盗堡垒) of Port Royal in Jamaica, which disappeared beneath the waves after an earthquake in 1692. Or the remnants of ancient civilisations, such as the Lighthouse of Alexandria in Egypt, and the Neolithic villages being discovered under the Black Sea, which some believe could help explain Noah's great flood.

    These treasures of cultural heritage are under serious threat. Technology now allows extraordinary access to the ocean depths for determined and well-financed treasure hunters. And the potential rewards are huge. In 1985, American salvor Mel Fisher discovered the wreck of the Señora de Atocha, a Spanish ship that sank off the Florida Keys in 1622 with her cargo of gold, silver and jewellery worth an estimated US $400 million.

    An archaeologist can spend ten years or more studying a ship, conserving its objects and publishing its findings. We gain an enormous amount of information and knowledge from this work. With treasure hunters, all of this is lost. This is tragic, for humanity as a whole.

    Traditional Chinese Medicine (TCM) needs to prove its worth through rigorous clinical trials, according to the head of one of China's largest herbal remedy companies, as a contentious new law to boost the $40bn sector comes into effect.

    Traditional Chinese Medicine is estimated by analysts to account for a third of sales in China's $117bn pharmaceutical (药学) market, the world's second largest. But most of those sales are of relatively cheap over-the-counter drugs, with many Chinese hospital doctors unwilling to prescribe TCM remedies because of the lack of evidence for their effectiveness.

    China's first law promising equal status for TCM and western medicine in the country's state-dominated healthcare system comes into effect this weekend. Provisions include encouragement for hospitals to set up TCM centres, and a licensing system for practitioners (从业者). "This law is very important for securing the status of TCM," said Wu Yiling, chairman of Yiling Pharmaceutical, a company that makes herbal remedies based on traditional recipes in the northern province of Hebei.

    Listed in Shenzhen, Wu Yiling has a market capitalization of RMB 20.7bn ($3bn). Mr Wu, the son of a herbal practitioner, controls a family fortune of $1.6bn, according to the Hurun Rich List.

    Mr Wu is both a supporter of the nature of Qi—the mystical energy force that provides the basis for much of TCM theory—and the clinical trials vital to western pharmaceutical companies. "TCM needs to develop using modern research methods," he said.

    For instance, researchers from Peking and Cardiff Universities tested the health benefits of Yiling's herbal medicine Yangzheng Xiaoji, publishing papers in the International Journal of Oncology that showed the drug can slow the growth of cancer tumours. "The theory and recipe is TCM, but in practice the evaluation of our medicines is carried out according to western evidence-based methods," Mr Wu said.

    Analysts say such tests can help gain support from doubtful hospital doctors and boost prescriptions. "Doctors need strong evidence that drugs definitely work," said Serena Shao, healthcare analyst at brokerage CLSA. "Some of these companies are currently doing clinical trials, and getting proof that their drugs have the same efficacy (功效) as chemical drugs. That's the way to go." she added.

    The TCM law has been greeted with doubt from China's western-schooled medical establishment, which points to a lack of rigorous training for TCM doctors, and a recent series of shocking events involving herbal injections believed to have been harmful. "Officials will try and encourage TCM, but also will be very cautious about what kinds of TCM they use in hospitals," added Ms Shao.

Traveling to Europe can be so expensive. If you have a tight travel budget, we have other options for your next European vacation. We found some places as cheap as Thailand while looking as pretty as Spain, Greece or Italy.

Bulgaria

Bulgaria is often characterized as being a country of stunning landscapes and friendly people with a rich history of culture. And it has a Mediterranean climate with hot summers and mild winters. In Bulgaria you can find accommodation for under fifteen dollars per night and a meal at a local restaurant will cost you no more than five dollars. From Sofia the capital, why not take a train to Istanbul for about fifteen dollars? What an adventure!

Romania

Romania is a country that not a lot of people know about, but it might be one you want to try on your next trip. Bucharest has a rich, historic architecture and a great nightlife for younger travelers. Besides the capital, there are many other beautiful places to explore in Romania, like you can go to Transylvania and see Dracula's castle. Good accommodation and a lot of restaurants are available here at a low cost. What a deal!

Albania

A perfect alternative to Spain or Italy, Albania has a lot of history and culture, but without all the crowds of tourists that you'll find in those places. It has some of the best beaches in Europe, so you can take advantage of that as well. The food is cheap and the average cost of accommodation in Albania is also low, with around thirty dollars per night for a mid-range budget.