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).

Mount Wuyi lies at the junction (交叉点) of Fujian and Jiangxi Provinces. It is among     1     first group of China’s top tourist cities. In December 1999, Mount Wuyi     2     (list) as World Heritage-Mixed Property by UNESCO.

With rich tourism     3    resource), Mount Wuyi is a famous tea center in China. As early as the Western Zhou Dynasty (1046—771 BC), it was well known     4     a place of interest. It has a species-rich ecosystem, with 2,527 kinds of plant species     5     about 5,000 species of wild animals. Mount Wuyi belongs to the typical Danxia landform. Except for the     6     (amaze) Danxia landform here, the Daoism culture and tea culture also attract tourists at home and abroad,     7     (especial) those coining from Singapore and Malaysia.

The Mount Wuyi scenic area     8     (be) quite large. Attractions in the mountain are dotted(布满的) and the distance between each other is quite long. It is not recommended     9     (visit) all the sites in the mountain, but some main attractions. With the ticket, you can reach all the attractions,     10     (include) Tianyou Peak, Wuyi Palace, Dahongpao Scenic Area, Shuilian Cave, etc.

Through travelling you can enjoy beautiful views and    1    (broad) your horizons. In summer, you'd better get on a cruise ship(游轮) in the city of Chongqing which will take you to the Three Gorges,    2     those ordinary ships are usually too crowded. Near Yunyang County, at the steep edge of the hills    3    (stand) the famous Zhang Fei Temple    4    (surround) by trees. Because smoking    5    (forbid) in the cabins, you have to go to the deck to smoke,     6     you can enjoy the beautiful scenery. You can see some fishermen    7    the distance. First, you will go through the Qutang Gorge, which narrows to 350 feet. Then you will sail through the Wu Gorge and the Xiling Gorge. However,     8     impresses you most may be the Daning River in Wuxi County. There is immense    9    (mountain) land on both banks of the Yangtze River with only small areas of flat    10    (plain).

Nowadays more and more people like to travel,     1     (especial) when vacations come. A great number of people rush out of their homes or companies to     2    (travel) spots. They either drive or take a bus, a train, a ship     3    so on. Some even ride bikes. 

Among various travel alternatives, there     4    (be) a special way of travelling—poorism. People have a tour in     5    poorest areas of the world. Some people may take a one-day poorest tour, and some even pay to stay in very poor neighbourhoods     6    (experience) the lowest living standards in the world. Poorism tours take place around the world, and not just in the third world     7    (country). You can, for instance, tour New York neighbourhoods in the Bronx. Such tours can take people into the heart of poor areas. These tours may awaken people to pay     8    (much) attention to long-standing poverty, or the effects of war. 

Some think that tours in the poor areas can raise social care. And the money from the tours can     9    (donate) to help the people    10    live there.

Last year, my brother and I went to Miami for a vacation. Some of my friends who had been there before said it was a wonderful holiday destination. Before we went, we     1    (plan) for months. When the day came, we were ready.

After our plane landed, we went to the hotel. We had made our reservation six months     2    (early), but the man at the front desk said there had been a mistake. We     3    (tell)that our rooms hadn’t been reserved for that week,     4     for the week after. I didn’t understand     5     this would happen. What’s worse, the hotel had been fully booked. When we     6    (wonder) what to do, the manager came out. She was surprisingly     7    (help). She apologized for the mistake and gave us a spare VIP room on     8     top floor. We had never stayed in such an amazing room, and we weren’t charged extra.

The next day, my brother and I went to the beach where we watched some people     9    (play) volleyball. We got a little sunburnt, but the day had been so     10    (relax) that we didn’t mind.

Travelling around the districts of Sydney is a wonderful experience.

The sightseeing options are     1     (end), but most travellers begin with the harbour at the Sydney Opera House. Known as one of the wonders of the world, it is     2     photographer's dream.

There is a huge     3     (choose) of accommodations available in the city and its surrounding area. Darling Harbour is famous for its restaurants and four-star hotels. Under the famous Sydney Harbour Bridge is The Rocks, a shopping district, which     4     (call) “the heaven of shoppers”. You can spend at least a half day     5     (wander) through the alleys and side streets     6     (take) in everything the shops offer. On the other side of the harbour     7     (lie) another must-visit spot, the Taronga Zoo Sydney. With an exciting collection of native animals, including lions and giraffes,     8     is rare to find a zoo with a view of Darling Harbour and the city skyline.

The Royal Botanic Garden Sydney is within walking distance of the Sydney Opera House, and is an absolutely perfect place for a picnic lunch. After lunch, take a walk to Sydney Tower,     9     you can get 360-degree     10     (forget) views of the city.

There is new destination on the world tourism map-Saudi Arabia. The desert kingdom has decided to open its door to tourists,     1     come from around the world. It has decided to issue tourist visas to people from 49 different countries. The visas can be applied     2     online and will take just seven minutes to issue. Saudi Arabia's government believes its country has huge potential     3    （develop） into major tourism destination. It has     4     wealth of natural attractions, deserts, World Heritage sites, beautiful beaches and unique cultures. The government also wants to make sure it can earn money from other industries in addition to oil and gas. It hopes tourism will contribute 10% of the country's GDP by 2030.

Tourists     5    （allow） to stay in Saudi Arabia for a maximum of 90 days in one year. They can enter the Kingdom multiple times in that year. Ahmad Al-Khateeb， chairman of the Saudi Commission for Tourism and National Heritage, explained the     6    （important）of tourism to Saudi. He said：“    7    （open） Saudi Arabia to international tourists is a     8    （history） moment for our country." He added that Saudi has a lot to offer："Businesses from around the world will establish operations within the Kingdom     9     its unique attractions, culture and natural beauty become more     10    （wide）appreciated."

Jack and I are good friends. We tried to walk across the United States of America. We’re not exactly sure why we were doing it. Part of     1     (its) was to test ourselves; to see     2     we could face the challenges. When I was a teenager, I often daydreamed that I was going to walk across the United States after     3    (graduate) from high school.    4     , I didn’t do that.

Before I knew it, I was     5    my thirties，married, a job, yet still had this idea in my mind with each passing year. I figured I was too old and my opportunity     6    (pass). Then, a few years ago, I met Jack, who     7     (be) thirty­five years old and quit his job as a civil engineer in New York City to walk across the United States. He wasn’t doing it for a cause as part of an organization. He was doing it     8    (simple) because he loved to walk and discover. The idea was back and I no longer had an excuse. We planned on averaging 20 miles a day and taking some days off     9    (rest), so we expected that the walk will take about 6 months, realizing it could take     10    (long). We were in no hurry: The total distance would have been about 3,100 miles.