Tibet, which is famous for its special culture and food, lies in the southwest of China. It is home to about 3.2 million Tibetans, making it one of the country’s     1     (large) minorities (少数民族). In recent years, Tibet     2     (gain) recognition and appreciation across the globe. With some of the world’s tallest mountains, Tibet attracts many people     3     want to climb Mount Everest.

When it comes to traveling to Tibet, you should know     4     best time to travel there is from April to October every year. If you plan to visit Tibet, it is important     5     (bring) enough clothes. Moreover, besides credit cards,     6     is necessary to bring some cash. To discover more about the cultural traditions of Tibet, it is     7     (high) advised to have a traditional Tibetan meal.     8     (visit) can buy some statue crafts in markets and shops.

A trip to Tibet can offer a unique travel experience, filled     9     rich cultural traditions and beautiful natural scenery. It will also offer us a chance to find out that     10     (recognize) and keeping our differences is important.

On February 16, 1861, a big earthquake struck Sumatra, an Indonesian island. The earthquake shook the western side of the island,     1     (cause ) a tsunami. That wall of water poured onto shore, destroying towns and taking thousands of    2     (life) .

Recently, though, a team of scientists discovered that another earthquake occurred before this deadly event. According to the record, that earthquake     3     (start) in 1829 and lasted for 32 years but no one felt even one shake. This kind of slow-moving earthquake    4     (call) “silent earthquakes” because no instrument can find them. Scientists have only begun discovering them because    5     the advances in GPS technology in the last twenty years.

    6     (find) out what is going on under the ground, scientists need to study earthquakes. Every earthquake, either small     7     big, can teach scientists something about how much the ground will shake in the future. Unluckily, no one can predict (预测) when an earthquake will hit. Scientists just have to prepare to study all earthquakes    8     hit.

But silent earthquakes like the one in Sumatra change the game for scientists. These silent earthquakes happen all over    9     world. Sometimes, a silent earthquake happens just before a regular one, both of which might be related. By studying silent earthquakes, scientists hope to better understand regular earthquakes and    10    (possible) predict them.

The Tibetan antelope, also known as the Chiru, is unique to the Tibetan Plateau of China,    1     is the highest plateau in the world. The Tibetan antelopes are thin animals with four powerful legs and short tails, their bodies     2     (cover) with abundant white and light-gray hair.

The Tibetan antelopes feed mostly on grass. In winter, they dig into the snow     3     (seek) food. They are good runners and can run for several hours in cold weather conditions, so they can sometimes escape from     4     (wolf) , their main predators,    5    (easy).

The Tibetan antelopes are listed in the “Convention on International Trade in Endangered Species of Wild Fauna and Flora” as endangered species with a population estimated to be     6     (little) than 35,000 and still on    7     decline.

Thankfully, in the past decades, effective measures    8     (take) by China and India to ban the Tibetan antelopes     9     being hunted. China has set up four nature reserves and thirty-two passages beneath the railways for the antelopes to immigrate. And both countries check the illegal trade strictly. People didn't believe these would work at first,    10     now local people think they are of great significance.

With the rapid extinction of many wild species, more and more people come to realize the great importance of wildlife protection.

We have to understand the problem in     1     new light: we protect ourselves through protecting wildlife. On the one hand, any species of wildlife helps to keep the ecological balance(生态平衡).     2     one species becomes extinct, it will disappear forever. What is more, it will result     3     the extinction of a chain of wildlife, which may lead to unpredictable disasters. On the other hand, the modern science and technology makes     4    possible for us to learn more about wildlife. By now, scientists     5    (find) that wildlife has unknown genetic codes(遗传密码), which may turn out     6     (free) human beings from serious diseases and     7     (nature) disasters in the future.

It is necessary for us to protect wildlife     8    (immediate) before it is too late, although man has already polluted the environment and threatened the     9    (exist) of many wild species. Let’s take action to protect wildlife.     10    (learn) to live in harmony with all wildlife is part of modern civilization.

Longjing tea,     1     has topped the list of the ten most famous teas in China with its color, taste and shape,    2     (name) after its region of production — Longjing Village of West Lake. The good environment and water resources are good for the     3     (grow) of the tea, confirming (证实) the saying that “Longjing tea is the    4     (good) among all of the teas in the world”.

Thanks     5     Emperor Qianlong of the Qing Dynasty, the tea has earned a high reputation. It is said that Emperor Qianlong visited a mountain of Longjing Village of West Lake on his travels in Hangzhou, and he saw some ladies picking the tea at     6     foot of the mountain. He was so interested in their movements that he decided to have a go himself.

While     7     (pick) the tea, he received the news of his mother’s illness, so he carelessly put the leaves in his pocket and     8     (leave) Hangzhou for Beijing. He visited his mother     9     (immediate) upon his arrival in Beijing, and his mother smelt the pleasant smell of the tea leaves from his pocket and wanted to have a taste. After drinking a cup of tea, she found herself completely     10     (energy), and she even praised it as a cure for all illnesses.

9 . California is the third     1    (large) state and the most multicultural state in the US. This is not     2    (amaze) when you know the history of California,     3    has attracted people from nearly every country in the world. No one really     4    (know) when the first settlers arrived in    5     we now call as California. Historians believe that Native Americans reached California     6    means of a land bridge. In the 18^th century, California was ruled by Spain. Of the first Spanish to go to California, the majority were religious men. In 1848, due to the     7    (discover) of gold in California, the dream of becoming rich quickly attracted people from all over the world. In fact, few achieved their dream of becoming rich, but most remained in California to make     8    life for themselves. In more recent decades, California     9    (become) home to more people from Asia.     10     is believed that before long the integration of nationalities will be so great that there will be no distinct major racial or cultural groups.