1 . 下列文段直接来自所学课文。请根据课文内容，填入符合课文含义的词，使文段意思完整。

In ancient times, silk from China found its way overland to India, the Middle East and Rome, along what became known as the Silk Road. A trading route across the sea was also     1     along the coasts of the Indian Ocean centred around Ceylon (now Sri Lanka). Here, merchants from China and many other places met to     2     trade deals, which also led to more     3     of each other’s cultures. Over the centuries, further trading allowed more exploration of the regions to the west of China, as     4     in Du Huan’s Record of My Travels in the eighth century.

Later, the Ming Dynasty further     5     relations with these regions. Between 1405 and1433, seven large fleets sailed west on voyages of trade and exploration. These fleets were a sight to behold and were in a league of their own at that time. Under the     6     of Zheng He, they set sail from the South China Sea across the Indian Ocean to the mouth of the Red Sea, and then to the east coast of Africa. African     7     families sent gifts such as giraffes as gestures of friendship in     8     for gold, silk, and spices. Although China     9     from further expeditions after 1433, these land and sea routes remained     10     channels between other cultures for centuries.

What a day! This morning, I was worried that no one would talk to me. But I was wrong. I didn’t feel awkward or f    1     at all. I miss my friends from junior high school, but I believe I will make new friends here, and there’s a lot to e    2     at senior high. I feel much more c    3     than I felt this morning. I think that tomorrow will be a great day!

I r    4     that you talk to your friend about his behavior. It is not unusual for teenagers of your generation to be a    5     computer games and the online world. But spending too much time online is unhealthy and makes it very difficult to focus on other things in life. Some students even become a    6     the Internet and cannot c    7     school and family life.

A short f    8     from Cusco takes you from the Andes into the Amazon rainforest. From there, you’ll spend one day travelling by boat to your a    9     in the middle of the forest. You can then spend three days exploring the rainforest with a local guide and enjoying the plants and animals u    10     the rainforest.

As a player, Lang Ping brought honour and     1     to her country. As a coach, she led the China women’s volleyball team to     2     at world championships and the Olympics. As a person, Lang Ping is loved by fans     3         4         5         6    . When the Chinese team was preparing for the 2015 World Cup, her determination was     7    . The team that Lang ping had built was     8         9    . One of the best players had been     10    , and the team captain had to leave     11         12     heart problems. Losing two important players was a big     13    , but Lang Ping did not     14         15    . She had faced difficulties before, and she knew that her young players could win if they     16         17     as a team. Two weeks later, they were world champions! Then in 2016, Lang Ping led her volleyball team to Olympic gold in Brazil.

[Hot Snake]

... This morning, however, a fireman accidentally discovered the cause. He noticed the remains of a snake which     1     of a 16,000-volt power line. In this way, he     2    . A bird had snatched up the snake... When it did so, it sent sparks down to the ground and     3    .

[Running and Fitness]

As people often say, any exercise is better than none, but long-distance running     1    .

... Besides, anybody who is feeling down can go for a run to cheer themselves up. Even a thirty-minute run will     2     that you may be suffering due to stress.

[Your Life Is What You Make It]

... Besides teaching, Zhang Tian also brought changes to the village. He contacted charity organizations about     1     and helped the villagers sell local products online.     2     was great, so he became very popular among the villagers and they treated him as one of them.

When you think of a fearsome hunter, images of lions and sharks may spring to mind. Recent research by     1     scientists, however, shows that in fact, humans are the most fearsome hunters who have the greatest impact on animal populations. Human activities have brought many animals close to     2    . In the last 500 years, over 300 species of animals have gone extinct. Some activities, such as hunting and fishing, directly harm animals,     3     other activities, such as development in towns and cities, impact indirectly on animal populations.

Hunting and fishing have directly influenced the world’s animal populations. Some people hunt animals for food: whale meat is     4     in some parts of the world. Some people hunt animals for fashion: animal skin is used to make coats and bags. Still others hunt animals just for fun: deer are     5     and shot by people who enjoy the     6     of the sport.

Human activities that have indirect effects on animals can be just as     7    . When we build farms or factories, we destroy animal habitats and leave many animals with    8     to live, or no food to eat. We can also put animals in danger without ever entering their habitats. Air, water, noise and light pollution can all have a deep and     9     influence quite far from their source. Partly due to pollution caused by ship traffic and other human activities, the dolphin population has     10     greatly. As the human population continues to grow, so does the effect we have on animals.

One characteristic of hybrids is that they usually a    1     a higher yield than c    2     crops. However, whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great d    3    . The common a    4     then was that it could not be done. Through i    5     effort, Yuan o    6     enormous technical d    7     to develop the first hybrid rice that could be used for f    8     in 1974. This hybrid e    9     farmers to e    10     their output greatly.

Just like spoken language, body language v    1     from culture to culture. The c    2     thing is using body language in a way that is a    3     to the culture you are in. For example, making eye contact — looking into someone’s eyes — in some countries is a way to display interest. In other countries, by c    4    , eye contact is not always approved of. For example, in many Middle Eastern countries, men and women are not socially permitted to make eye contact. In Japan, it may demonstrate r    5     to look down when talking to an older person.

The gesture for “OK” has different meanings in different c    6    . In Japan, someone who w    7     another person employing the gesture might think it means money. In France, a person encountering an i    8     gesture may interpret it as meaning zero. H    9    , you should avoid making this gesture in Brazil and Germany, as it is not considered p    10    .