China’s Liangzhu Archaeological Site     1    (declare) on the list of World Heritage sites on Saturday by UNESCO’s World Heritage Committee during its 43^rd session in Baku, the capital of Azerbaijan.

The site,     2    is located in Yuhang District in Hangzhou City in China’s eastern Zhejiang Province, showcases the civilization of prehistoric rice agriculture between 3,300 B.C.     3     2,300 B.C. The ruins of ancient Liangzhu city were discovered in 2007, and then large dam sites     4    (surround) the Liangzhu ancient city were unearthed continuously after 2009. It was     5     (official) submitted to UNESCO in 2019, hoping to win     6     (recognize) as a World Cultural Heritage Site. The site     7     (include) archaeological remains and unearthed cultural relics of the Liangzhu Ancient City as well as a wetland that covers     8     area of 908. 89 hectares in a plain river network. It is also found that the Liangzhu ancestors started to use characters about 5 ,000 years ago, 1 ,000 years     9     (early) than previously thought, according to Colin Renfrew, a retired professor of archaeology at the University of Cambridge.

The World Heritage Committee added Liangzhu to the UNESCO list    10     (encourage) better protection of the site, considered to be of “outstanding universal value” to humanity.

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.

Strange things appeared before the Tangshan earthquake happened. For three days the water in the village wells     1    (rise) and fell. The well walls had deep cracks in them. A smelly gas came out of the cracks. Some animals including fish,     2    (mouse) behaved strangely. Other strange things also happened in the city,     3     people thought little of these events and they slept as usual.

    4     (final) a terrible earthquake hit the city of Tangshan on July 28, 1976, in which more than 240,000 people died and many     5    (injure). Many houses fell down and sand filled the wells instead of water. People were greatly shocked. All the electricity in the city was cut off and people began     6     (wonder) how long the disaster would last. The whole city was completely destroyed and the world seemed to be     7    an end. It was one of the most destructive earthquakes ever,     8     shocked the whole nation.

However, the people of Tangshan didn’t lose hope because 150,000 soldiers were sent to help the rescue workers. The soldiers tried their best to dig out those     9     were trapped. They also built shelters for the     10     (survive). Fresh water was taken to the city by every means. Slowly, the city began to come back to life.

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.

Lions，tigers and other animals are staying awake at night    1    （avoid）human beings，a new study finds．

Scientists have known that human activities can lead to changes in nature．Many animals may move around less or travel to far places to keep away    2    people．By being awake at night，animals can also be on guard against possible enemies and spend less time    3    （look）for food．

The latest research found even activities like farming and camping can    4    （fright）animals and cause them to become more active at night．    5    had been studied were lions in Tanzania，tigers in Nepal and monkeys in Brazil．Researchers compared    6    （careful）how much time those animals were active at night in areas of human activities，such as hunting and farming．    7    was human activities that caused an increase of about 20 percent in night time activities，even in creatures that usually sleep at night．Results    8    （publish）in the journal Science two months ago．

The new findings are    9    （usual）because no one else has looked at it in such detail before Ecologist Marlee Tucker was    10    （surprise）that any kind of human activities is enough for animals to see people as a threat．

China has the world’s largest number of world natural heritage (遗产) sites. The country is now home     1     14 world natural heritage sites and four mixed sites,     2     are famous for both cultural and natural features, both leading the world in terms of quantity, the administration said. These heritage sites     3     (effective) protected China’s representative geological relics, mountains, forests and lakes, along with the rare and     4     (endanger) animal and plant species, the administration said Friday at     5     news meeting about cultural and natural heritage day, which falls on June 8 every year. In the past few years, the country     6     (increase) legal, and technological support of the protection of its world natural heritage, establishing a     7     (manage) system with Chinese characteristics. China’s world heritage has contributed to the country’ economic development     8     presented its image to the world. These areas have also played an important role in the protection of cultural relics, intangible cultural heritage and historic cities, towns and villages,     9     (bring) in over 14 billion yuan in average annual tourism income for     10     (local).

Located at the western part of Hangzhou, just under 5km away from the West Lake, Xixi National Wetland Park distinguishes itself as     1     exceptional urban place. This park is a pioneering example of how urban life combines agriculture with culture, making it a     2     (real) unique destination. Along with Xihu and Xiling famous, respectively, for their natural scenery    3     cultural heritage, Xixi National Wetland Park is one of the celebrated “Three Xi’s of Hangzhou”.

    4    (cover) a vast area, the park consists of three causeways(堤道) and features ten famous sights. Nearly 70% of the park is occupied by river ports, ponds and small lakes,     5     explains a wetland environment. These waterways cross the park, dividing it into distinct     6     (section): the east, the west, and the central part.

So far, the government     7     (establish) ecological protection zones as well as a sightseeing zone.     8     addition, visitors can explore the Wetland Science Exhibition Hall at the park’s main entrance conveniently.

The Xixi wetlands is an area of unmatched peace and quiet — filled with history and natural     9     (beautiful). The only true thing that can be said of the Xixi wetlands     10     (be) that if you haven’t seen them, you haven’t really seen Hangzhou.