According to a review of evidence in a medical journal, runners live three years 11 (long) than non-runners. You don’t have to run fast or for long 12 (see) the benefit. You may drink, smoke, be overweight and still reduce your risk of 13 (die) early by running.
While running regularly can’t make you live forever, the review says it 14 (be) more effective at lengthening life 15 walking, cycling or swimming. Two of the authors of the review also made a study published in 2014 16 showed a mere five to 10 minutes a day of running reduced the risk of heart disease and early deaths from all 17 (cause).
The best exercise is one that you enjoy and will do. But otherwise … it’s probably running. To avoid knee pain, you can run on soft surfaces, do exercises to 18 (strength) your leg muscles (肌肉), avoid hills and get good running shoes. Running is cheap, easy and it’s always 19 (energy). If you are time poor, you need run for only half the time to get the same benefits as other sports, so perhaps we should all give 20 a try.
Diets have changed in China-and so too has its top crop. Since 2011, the country 21 (grow) more corn than rice. Corn production has jumped nearly 125 percent over 22 past 25 years, while rice has increased only 7 percent.
A taste for meat is 23 (actual) behind the change: An important part of its corn is used to feed chickens, pigs, and cattle. Another reason for com's rise: The government encourages farmers to grow corn instead of rice 24________ (improve) water quality. Corn uses less water 25 rice and creates less fertilizer (化肥) run off. This switch has decreased 26 (pollute) in the country's major lakes and reservoirs and made drinking water safer for people.
According to the World Bank, China accounts for about 30 percent of total 27 (globe) fertilizer consumption. The Chinese Ministry of Agriculture finds that between 2005-when the government 28 (start) a soil-testing program 29 gives specific fertilizer recommendations to farmers-and 2011, fertilizer use dropped by 7.7 million tons. That prevented the emission (排放) of 51.8 million tons of carbon dioxide. China's approach to protecting its environment while 30 (feed) its citizens“offers useful lessons for agriculture and food policymakers worldwide, "says the bank's Juergen Voegele.
I'm not sure 31 is more frightened, me or the female gorilla (大猩猩）that suddenly appears out of nowhere. I'm walking on a path in the forest in the Central African Republic. Unexpectedly, I'm face-to-face with the gorilla, who begins screaming at 32 top of her lungs. That makes her baby scream, and then a 400-pound male appears. He screams the 33 (loud) of all. The noise shakes the trees as the male beats his chest and charges toward me. I quickly lower myself, ducking my head to avoid 34______(look) directly into his eyes so he doesn't feel 35 (challenge).
My name is Mireya Mayor. I'm a 36 (science)who studies animals such as apes and monkeys. I was searching 37 these three western lowland gorillas I'd been observing. No one had seen them for hours, and my colleagues and I were worried.
When the gorillas and I frightened each other, I was just glad to find 38 (they) alive. True to a gorilla's unaggressive nature, the huge animal 39 (mean)me no real harm. He was just saying: "I'm king of this forest, and here is your reminder!" Once his message was delivered, he allowed me 40 (stay) and watch.