For centuries, Tibet has not been explored as much due to its remote    1    (locate), extreme climate and geographic environment. Since 2006, the Qinghai-Tibet Railway    2    (become) the most popular way to connect Tibet to the rest of China.    3    (know) as the “sky road” and a man-made wonder in transportation, the railway begins in Xining and ends in Lhasa. The scenery along the railway offers not only a feast for the eyes, but also    4    journey for the soul.

Qinghai Lake is the    5    (large) inland lake in China. Be it the blue sky and water, the green grassland or breathtaking landscapes-Qinghai Lake has great charms that are worth exploring. It is    6    (definite) a perfect place for bird lovers as many different kinds of birds fly here in May and June due to the mild weather.

The high peaks of the Kunlun Mountains are covered with snow and mist all year round,    7    (create) an amazing view. The geographic and severe climatic conditions have made this place a “forbidden zone for humans”, which is also a reason    8     its biodiversity.

Lhasa offers almost every aspect of Tibetan culture. If one must pick a name card for Lhasa, the Potala Palace is very likely     9    (be) the answer. No one can really say that he has visited Lhasa     10    he has been to the Potala Palace.

Besides oceans, glacier ice is the largest source of water on earth. A glacier is a sheet of ice that moves     1    (it) under the influence of gravity. Some glaciers travel down mountains or valleys,     2     others spread across a large expanse of land.     3    (heavy) glaciated regions such as Greenland and Antarctica are called continental glaciers. These two ice sheets account     4     more than 95 percent of the earth's glacial ice. The Greenland ice is so heavy that much of the region     5    (press) below sea level so far. Smaller glaciers that occur at higher altitudes are called valley or alpine glaciers (山岳冰川). Another way of     6    (classify) glaciers is in terms of their internal temperature. In temperate glaciers, the ice within the glacier is near its melting point.

The     7    (major) of the earth's glaciers are located near the poles, though glaciers exist on all continents, including Africa and Oceania. Glaciers     8    (form) in high alpine regions generally result from cold temperatures throughout the year. The weight and pressure of ice accumulation causes glacier movement. As a glacier moves, it carves out     9     U-shaped valley similar to a riverbed, but with much steeper walls and a     10    (flat)bottom.

My motherland, China,     1     capital is Beijing, is a great country with a long history and rich culture. It     2    (locate) in the east of Asia, with an area of 9,600,000 square kilometers and     3     population of 1.4 billion. Our country     4    (consist) of 56 nationalities, among which the Han Ethnic Group is the largest,     5    (make) up 94% of the people. There are many beautiful mountains and rivers as well as rich natural     6    (resource) in China. As we all know, the Yangtze River is the third     7    (long) river in the world,     8     the Great Wall is one of the seven wonders in the world. Kung Fu is the crystallization of Chinese     9    (wise) and the embodiment of Chinese traditional culture. The Chinese people are hard-working and brave. Great changes     10    (take) place in China in the past 20 years.