Reducing the number of calories every day is the ticket to good health. It works in lab animals. It also works in human     1     (being). The name of the method is “caloric restriction”. It increases the life length of animals. It even reduces their rate of cancer and other diseases     2     happen as people age. Reducing calories usually     3     (make) a difference to young and middle-aged adults.

Researchers looked into     4     group of healthy men and women aged between 21 and 50. Members of the group agreed to reduce calories for two years. They could eat the foods they wanted as long as they cut back     5     the total amount of food they ate. They     6     (expect) to cut calories by 25 percent by the researchers.

Many could not do it. The average calorie reduction was twelve percent. That is a reduction of     7     (approximate) 300 calories a day. But it worked. Those     8     (practise) calorie reduction lost weight and body fat. Their blood pressure fell a little. Fewer calories lead to better health, Does it lead to a longer life and     9     (little) sickness? A doctor said the diet would have to last a long time     10     (find) out the answer to this question. Researchers would have to study people for a lifetime to know whether the diet keeps them well and alive longer.

Wearing wristbands with the names of LeBron James and Kobe Bryant     1     (write) on them, 17-year-old Tibetan girl Cigla plays her favorite sport — basketball — at Nagqu No 2 Senior High School in Lhasa, Tibet Autonomous Region. For her,     2       (study) in Lhasa, the region’s most developed city, has made it much     3     (easy) for her to realize her basketball dream.

With     4       average altitude of over 4,500 meters, Nagqu is among the most uninhabitable places in Tibet.     5     have long compromised the health of Nagqu students are low-oxygen environment and extreme weather. “The students had barely played any sports due to     6       (limit) sports facilities and frequent bad weather in Nagqu.” said Bachug, the school's physical education teacher.

However, in a bid to ensure equal access     7     quality education, in recent years, the Tibet regional government     8       (establish) several schools in Lhasa to recruit Nagqu students. Like Cigla, many Nagqu students are from poor farming and herding families. The school     9       (campus) in Lhasa have seven concrete basketball courts, a standard soccer field and a sports stadium, which gives students opportunities     10       (train) their bodies and find the sport that appeals to them.