1 . 阅读下面材料，在空白处填入括号内单词的正确形式。

Their eyes fixing on their Chinese Tai Chi master, some children in Zimbabwe closely follow a series of martial arts (武术) movements     1    (perform) in a slow and gentle manner

From primary students to adolescents,     2     group of Tai Chi enthusiasts enjoy the power of concentration     3     the guidance of their instructor, Zhu Wei. Zhu,     4     is a traditional Chinese medicine (TCM) doctor, teaches Zimbabweans Tai Chi, apart from providing medical assistance.

Tai Chi is     5     (deep) rooted in Chinese traditional cultures, including martial arts, TCM, traditional Chinese philosophy etc,     6     (stress) a mind-body connection by gentle movements, meditation (冥想) and deep breathing. Tai Chi is widely recognized as a practice that is     7    (benefit) to both our physical and mental health. Besides, it can improve children’s physical     8     (strong) and develop a sense of self-worth and self-confidence.

Since the 19^th century, the Chinese     9     (understand) the health benefits of Tai Chi,     10    its popularity has grown steadily. At present, Tai Chi is practiced in almost every corner of the world with more than 300 million participants.

2 . Fast walkers may live longer than dawdlers (缓慢的人)— regardless of their weight, a new study suggests.

Researchers at Leicester University analyzed data on 474, 919 people with an average age of 52 in the UK Biobank between 2006 and 2016. They found women who walked briskly had a life expectancy of 86.7 to 87.8 years old, and men who kept up the pace had a life expectancy of 85.2 to 86.8. Slow walkers hadn’t much encouraging prospects (前景): women had a life expectancy of 72.4, and men of 64.8 years old, if they were more leisurely in their movements. According to the paper, published last week, that ratio held true even if the fast walkers were severely overweight. It does not necessarily mean fast walkers will live longer. Experts say it suggests walking speed could be a simple way for doctors to judge their patients’ general health alongside other tests.

It is hardly the first study holding up walking speed as a powerful evidence that appears to improve and determine our health.

In 2011, the Journal of the American Medical Association (JAMA) published a study by Stephanie Studenski, who found the same: walking speed was a reliable predictor of life expectancy.

In 2013, US researchers found walking pace was linked to lower heart disease risk and longer life expectancy. In 2018, a study from the University of Sydney found picking up your walking pace to even an “average speed” could cut your risk of premature death by a fifth.

And Tom Yates, the physical activity professor at Leicester who's behind the latest study, has been publishing findings on this connection for years.

In 2017, he analyzed the same UK Biobank data and found walking speed appeared to affect the risk of dying from heart disease — concluding that the slowest walkers were twice as likely to suffer a heart-related death compared to quick walkers.

1. What does the underlined word “briskly” in paragraph 2 probably mean?

A．Casually.

B．Quickly.

C．Actively.

D．Energetically.

2. What does the paper published last week show?

A．Most fast walkers are overweight.

B．Fast walkers have a simple way of living.

C．Walking speed can help doctors know about their patients’ general health.

D．Doctors will surely have better ways to cure their patients of their illness.

3. What did US researchers find?

A．Walking slowly is bad for people's health.

B．Walking speed can predict a person’s life expectancy.

C．People won't die early by increasing their walking pace.

D．Lower heart disease risk is determined partly by walking pace.

4. What’s the best title for the text?

A．Fast Walkers May Have a Long Life Expectancy

B．Life Expectancy Is Determined by Exercise

C．Researchers Try to Improve Life Expectancy

D．The Public Doubt Researches on Walking Speed