Du Fu: China's Greatest Poet ，a BBC one-hour documentary，    1    (launch) on April 6 this year. It was the first time to put Du's life in a global context.

For the Chinese,Du,    2    style of poetry is called realism,is more than a poet;he has been the guardian of the moral of the nation.    3    (bear) in 712,Du lived through the violent fall of the Tang Dynasty when wars, floods and famines almost ruined the country. In his poems, he poured out his concern for his country and people as well as the importance of celebrating the few simple    4    (joy) of life.

To explore his life and discover what the poet means to China and the Chinese people, the film crew had an    5    (extreme) tough time tracking the footsteps of the eighth-century poet.

This documentary is not     6    easy watch. To help audiences make sense of the. poet's great achievements in literature,Du is compared    7    China's Shakespeare in this documentary.Also,the program invited McKellen, who played Gandalf in The Lard of the Rings movies,    8    (read) 15 of Du's poems that had been translated into English. These can help foreigners    9    ( well) understand what makes Du' s works so special.

In a way, the documentary is displaying the charm of traditional Chinese literature to the world,    10    (fuel) a desire to learn Chinese Tang poems.

Many athletes have been told that smiling while     1    (sweat) will make our efforts feel easier. A marathon runner smiled widely through the final miles of his fastest-ever marathon; afterward, he said what he had hoped     2    (be) that the smiling would ease him to the finish line; But there has been little solid scientific evidence to support this idea. In recent years several past studies     3    (examine) whether deliberately smiling can make changes to how people feel psychologically during races,     4     few have looked at the physical effect     5     sports performance.

Researchers decided     6    (gather) a group of experienced recreational runners and have them alternatively smile broadly as they ran. Many of the runners found it difficult to smile throughout the whole session, though. Their smiles became     7    (increase) fixed and unnatural. Such false smiles make     8    (few) facial muscles (肌肉) start working than the sincere version and most likely result in less     9    (relax) and performance improvement. So the key to using a happy smile to make you     10     better runner may be to smile sincerely and often near a race’s end, but in 30-second bursts, rather than constantly.

When scholars of international relations predict that the 21st century will be a “Chinese century”, they are full of reasons.     1     America remains the only superpower, China is responsible for an important share of global change. Since     2     start of the financial crisis in 2008, for example, China has accounted     3    45% of the gain in world GDP. In 1990 about 750 million Chinese people lived in extreme poverty; today fewer than 10 million do. Its GDP per person, in terms of purchasing-power,     4     (rise) ten times since 1990.

China’s amazing     5     (perform) has greatly affected the world’s economic output. The Economist has worked out a geographic center of the global economy by     6     (take) an average of each country’s latitude and longitude(经纬度),     7     (measure) by its GDP. At the height of America’s control, this point     8     (previous) sat in the north Atlantic. But China has pulled it so far east     9     the global center of economic gravity     10     (be) now in Siberia.

Louis Cha, better known by his pen name Jin Yong, was a Chinese wuxia novelist and essayist,     1    co-founded the Hong Kong daily newspaper Ming Bao in 1959 and     2     (serve) as the first editor-in-chief. He was Hong Kong’s most famous writer.

His wuxia novels have     3     widespread following in Chinese communities worldwide. His 15 works     4     (write) between 1955 and 1972 earned him a reputation as one of the greatest and most popular wuxia writers ever. By the time of his     5     (die) he was the best-selling Chinese author, and over 100 million copies of his works have been sold worldwide. His works have the unusual ability     6     (go) beyond geographical and ideological barriers separating Chinese communities of the world, achieving     7     (great) success than any other contemporary writer.

Most of his works     8     (translate) into many languages so far, including English, French, etc. Even the asteroid (小行星) 10930 Jinyong (1998 CR2) is named     9     him.We cannot thank him more for     10     he has done in novel literature.

Up to 82 percent of children with healthy mothers are not easy to be obese（肥胖的）, according to research. A mother,     1     has a healthy weight, exercises regularly, eats a healthy diet, doesn’t smoke and only     2    (drink) wine in moderation, is significantly less likely     3    (have)a fat child, scientists say.

And research suggests it could be more to do with nurture(养育)    4     nature, as a mother's lifestyle appears     5    (direct) linked to the health of her child. When both mother and child follow a healthy lifestyle, the risk of obesity     6    (reduce)even more, the study of more than 24,000 children found.

The study examined the medical history and lifestyles of more than 24,000 children aged nine     7     fourteen, born to almost 17,000 women in the US. Researchers looked at the link between overall mother health and likelihood of a child     8    (be) obese.

The mother's health was judged on her height-to-weight ratio(比例), her diet, amount of physical     9    (active), smoking status and how much alcohol she drank. A healthy weight and diet, regular exercise, no smoking and moderate drinking all reduce the chance of a woman having     10     obese child.