Many parents don’t know how much exercise their children need to do every day to stay     1     (health). The National Health Service guidance states that children     2     are aged from five to eighteen should do one hour of exercise every day, which about seventy percent of adults in the UK never mind. The research of 2,000 adults     3     (find) that only a quarter knew the exercise time recommended for young people.

The Youth Sport Trust leader, Ali Oliver said, “We have seen a drop in young people’s physical activity in recent     4     (year).” It is often     5     (report) that pupils are taken out of PE lessons to prepare for exams.

Meanwhile, figures from Sport England show only 17.5% of children are doing sports continuously. There is also a     6     (differ) among children from various economic (经济) backgrounds, with 39% of those from poor families doing     7     (little) than thirty minutes of exercise a day, compared with 26% from rich families.

This week thousands of people will get together     8     (celebrate) National School Sport Week, with     9    aim of promoting (推进) the importance of exercise and bringing great benefit     10     young people.

A recent survey has found that many people suffer from sleep problems. Some are     1     (able) to fall asleep, some wake up in the middle of the night, and others     2    (simple) do not get enough sleep. One of the reasons why people fail to get a good night’s sleep     3     (be) pressure from school or work. Noise pollution and light pollution in big cities may also contribute     4     sleep problems. In     5     short term, people with sleep problems often feel tired and have trouble concentrating. In the long term, they may be at increased risk of having a poor memory, being overweight and     6     (suffer) a heart attack. Sleep problems are especially dangerous for     7     (teenager). They are still growing and night is the time when     8     (they) bodies grow faster. Teenagers     9     do not sleep well may experience situations where body development slows down, and their health suffers.

So, if you have trouble getting a good night’s sleep, it might be time     10     (make) some changes in your lifestyle.

“Military-style” travel has become the     1     (late) fashion among Chinese college students. Videos of them taking such trips     2     (trend) on social media platforms in recent years. The reason why it has become so popular is     3     college students can spend as little money as possible traveling to as many places as they can during the weekend. They usually hop on a regular-speed train on a Friday night, arrive at the destination city and travel     4     (extensive) there on Saturday. Then, they can repeat the same busy schedule     5     returning to their universities on Monday morning.

Different people have different views, with some netizens     6     (praise) these college students for their high ability to implement their plans. However, others doubt     7     such a tight schedule is healthy.

According to some experts, the “military-style” travel is a form of budget travel appealing to specific groups of people who are less     8     (concern) with in-depth experiences and more focused on checking off popular tourist destinations. Therefore, this has led to the emergence of a type of tourism     9     travelers are willing to sacrifice comfort for     10     (affordable) and convenience.

At present, major parks across the US are facing a     1       (grow) problem. From getting too close to wildlife to camping in off-limit areas, more and more visitors     2     (break) park rules. In July alone, park rangers handled more than 11,000 incidents at the 10 most visited     3       (nation) parks. 

Record numbers of visitors at Yellowstone National Park, in Wyoming, have caused problems. Visitors stray from     4     (mark) paths. They break park rules in order to take selfies     5     wildlife, getting too close to elk, grizzly bears, and bison. As drivers slow    6     to snap pictures of the animals, traffic backs up. 

The breaking of park rules comes from disbelief among visitors     7     they will get hurt, said Yellowstone Superintendent Dan Wenk. More than 52,000 warnings were issued at Yellowstone in 2015, up almost 20 percent from the year before. That     8     (worry) the National Park Service. 

As the number of visitors increase, the group is working     9     (protect) national land for future generations. The top 10 parks, including Yosemite in California and the Grand Canyon in Arizona, hosted almost 44 million people last year. That’s a 26 percent increase from a decade     10     (early).

At present, major parks across the US are facing a    1    (grow) problem. From getting too close to wildlife to camping in off-limit areas, more and more visitors    2    (break) park rules. In July alone, park rangers handled more than 11,000 incidents at the 10 most visited    3    (nation) parks. 

Record numbers of visitors at Yellowstone National Park, in Wyoming, have caused problems. Visitors stray from    4    (mark) paths. They break park rules in order to take selfies    5    wildlife, getting too close to elk, grizzly bears, and bison. As drivers slow    6    to snap pictures of the animals, traffic backs up. 

The breaking of park rules comes from disbelief among visitors    7    they will get hurt, said Yellowstone Superintendent Dan Wenk. More than 52,000 warnings were issued at Yellowstone in 2015,up almost 20 percent from the year before. That    8    (worry) the National Park Service. 

As the number of visitors increase, the group is working    9    (protect) national land for future generations. The top 10 parks, including Yosemite in California and the Grand Canyon in Arizona, hosted almost 44 million people last year. That’s a 26 percent increase from a decade    10    (early).

The Chinese language has become increasingly popular in the world. More British students chose to take Chinese tests than German in this year’s A levels, showing a great     1     (curious) about the ancient Asian language.

This is the first time that Mandarin     2     (overtake) German at A levels, a British public exam taken by high school students,     3     (make) it the third most popular language in the UK.

A total of 3,334 candidates chose Mandarin     4     their foreign language, up 8.6 percent from 2017,     5    around 3,058 took German A­level, down 16.5 percent year on year.

French and Spanish still remain the most popular foreign languages. The German language     6     (follow) by Russian and Polish.

According to the Office of Chinese Language Council International (Hanban), as of 2017, some 100 million people, excluding native speakers, use Chinese     7     (global), while the number of Chinese teaching centers has surpassed (超过) 70,000.

South Korea has a larger population of Chinese language learners     8    any other country in the world with the number estimated at around 10.6 million. Last year alone, over 170,000 people     9     (sign) up for Chinese language tests, like the HSK,     10    full name is Hanyu Shuiping Kaoshi in Chinese.

The United Nations in 2010 suggested a Chinese Language Day which falls on April 20th each year to celebrate cultural diversity as well as to promote the equal use of all official languages.