Young people frequently say that they want to exercise, but they just can't find the time. The solution just might be in-office interval training. Recent studies show that very short but intense exercise rapidly builds and maintains fitness and health, even when the workout is only a few minutes long. Work the stairs You can complete an excellent, effective -- and very brief -- workout in an office stairwell, says Martin Gibala, a professor of kinesiology at McMaster University in Canada and an expert on interval training. For a study that he and his colleagues presented earlier this year, they asked 12 out-of-shape women in their 20s to warm up for two minutes by slowly walking up and down stairs in a campus office building. They completed three of these abbreviated stair workouts per week for six weeks. By the end, their aerobic fitness had improved substantially, the researchers reported, by about as much as if they had been running or cycling each week for hours. Fidget your way to fitness. Parents and teachers may once have urged you to sit still, but wiggling, tapping your toes, standing briefly, and otherwise fidgeting as much as possible at your desk is in fact good for your body. In one recent study, college students showed healthier blood flow in their lower legs if they fidgeted than if they did not. Even better, a 2008 study found that among office workers, those who frequently fidgeted burned as many as 300 calories more each day than those who resolutely stayed still. What does the passage mainly want to tell us? A) several ways to work out within short time B) short exercise does no good to health C) how to find time to exercise D) fitness can be improved
A
Have you ever wondered how your favorite NBA team received its famous name? All NBA teams have an interesting story or a history behind their names. Some of the names reflect the city's culture or history, others came from previous owners and many were selected through "Name the Team" contests. For teams like Los Angeles and Utah, the names were not always a reflection of the city. Even though Los Angeles has no lakes, the Laker name has been a city treasure for almost 40 years. Before going to Los Angeles, the team originated in Minneapolis, Minnesota. In 1948, team officials chose the name for its direct relationship to the state's motto, "The Land of 10,000 Lakes." The team name went unchanged after moving to Los Angeles in 1960. Because Utah's team originated in New Orleans, Louisiana, it was called the Jazz. In 1974, New Orleans club officials chose the name to represent the city for its reputation as the "jazz capital of the world." The name stayed with the team even after finding a new home in Salt Lake City, Utah in 1979. The Chicago Bull's original owner, Richard Klein, named the team the Bulls. He picked the name because a fighting bull is relentless, and never quits. Klein, who founded the club in1966, believed these qualities were necessary for a championship team and hoped his Chicago athletes would live up to the team name. A belief that Bulls----winner of the six NBA championships have definitely followed. In 1967, the Indian Pacers selected their team name in a different way from most other teams. Their decision was based on what they wanted to accomplish in the NBA. Team officials chose the Pacers name because the organization wanted to set the "pace" in professional basketball Los Angeles' team is named "the Laker" because _ . A) Los Angeles is a city of lakes B) it was named after a city treasure C) the team got this name in another city, which had a lot of lakes D) the name was selected from a "Name the Team" contest
C
Q: Weeks have passed since the world lost contact with Malaysia Airlines flightMH370and its 239passengers and crew. Although there is little hope of finding any of the passengers and crew alive,China has been making all-out efforts to find what remains of the plane in the southern Indian Ocean,where the plane is believed to have crashed.The search operations involve the navy,the marine police,scientific research and so on.While China's authorities and military forces have passed the test,the search operations have also shown some weaknesses.It is necessary to address these problems because China is a nation that faces many natural disasters. Lack of professional equipment has been the most notable problem.Among all the ships involved in the search for MH370,only Nanhai jiu 115and Donghai jiu 101and a few other ships have professional rescue equipment.There are also gaps between China and the US in other technologies such as sea-probing equipment and telecommunications.China mainly sent transporter planes,which lacked the necessary equipment to probe the ocean.While the United States sent P-3C and P-SA planes and MH60-R helicopters with equipment that can probe to depths of 76meters and cover 770sq kilometers in four hours. China's technology clearly needs to be improved,After the plane lost contact on March 8,more than one satellite received signals from it,but there is no report of any of China's satellites receiving a signal. Besides technology,China urgently needs to strengthen its international soft power,because almost all the important information was first obtained by Western media,which put pressure upon the Malaysian government for more timely and accurate information.Chinese media mainly forwarded the news broken by their Western colleagues. Last but not least,more attention should be paid to international cooperation.The search and rescue efforts could well have been a race against time to save lives,but limited by international laws and the absence of cooperation mechanisms,China and some other... What is the best title for this passage? A) MH370,come back home now B) China makes all-out efforts to find what remains of MH370 C) Lessons to be learnt from MH370search D) Why the missing MH370cannot be found.
A: C
What time of day can you think most quickly? Are you a morning person? Or does it take you a few hours to get your brain going? A lot of recent research suggests that we should pay attention to our body clock. It can tell us what time of day we can perform best at. Many people work best later in the morning. This is because the body's temperature takes time to rise through the day. Taking a warm shower when you wake up can help your body's temperature rise quickly. But everyone's body clock is different and some are special. Morning people will get up early and work better early in the day. Evening people will work later but work better towards the end of the day. Research shows that we're better at some activities at certain times of the day. Physical performance is at its best between 3 pm and 6 pm, so it's better to exercise later in the day. Between noon and 4 pm, people begin to pay less attention. This is because we think less quickly after a big meal. Research also shows we become sleepy around 2 pm. This is why people in Spain take a short sleep in early afternoon. Finally, it is best to eat when we're active. This allows our body to burn calories better and stops our blood sugar levels from getting too high. What is the best time for physical performance? A) Between 3 pm and 6 pm B) Between 7 pm and 10 pm. C) Between noon and 4 pm D) Between 5 pm and 8 pm.
A