The fresh thin air, snow-covered mountains and graceful animals running on the plains are why we’re here to observe Tibetan antelopes(羚羊), which are being hunted, 【小题1】 (illegal), for their valuable fur(毛皮).

My guide is Zhaxi, 【小题2】 (work) at the Changtang National Nature Reserve. “We’re not trying to save the animals,” he says. “Actually, we’re trying to save 【小题3】 (we).”

During the 1980s and 1990s, the population of Tibetan antelopes 【小题4】 (drop) by more than 50 percent, as hunters were shooting antelopes to make 【小题5】 (profit). To save this species from 【小题6】 (extinct), the Chinese government placed it under national protection. Zhaxi and other volunteers watched over the antelopes day and night 【小题7】 (keep) them safe from attacks. Bridges and gates were constructed to let the antelopes move easily and keep them safe from cars and trains.

【小题8】 a result, the antelope population has recovered and in June 2015, the Tibetan antelope was removed from the 【小题9】 (endanger) species list. The government, however, does not intend to stop the protection programmes, since the 【小题10】 (threat) to the Tibetan antelope have not yet disappeared.

Only when we learn to live in harmony with nature 【小题11】 we stop being a threat to wildlife and to our planet.

Today, we buy more clothing【小题1】we did 20 years ago. Fast fashion causes 13.1 million tons of clothes to be thrown away each year, and only 15% are recycled. That’s a lot of waste if you take into consideration the fact that too much water【小题2】(use) to produce one T-shirt. What can you do about that? Use the principle “less is more”.

Fast fashion clothing is designed to fall apart fast,【小题3】means that you’ll need more soon. In the long run, it’s【小题4】(cheap) to buy fewer clothes of higher quality. Besides, more and more【小题5】(store) have recycling programs,【小题6】(make) it easy to get rid of unwanted items responsibly.

Businesses can be environmental-friendly, too. For example, an online clothing store promises【小题7】(contribute) 5% of its income to an【小题8】(organize) which protects elephants in Africa.【小题9】(actual), shopping in such similar businesses is certainly【小题10】amazing way to be in harmony with (与……和谐相处) nature. It creates a win-win situation where you can buy things you love, and at the same time, the environment has been improved because of your effort.

Machu Picchu is an ancient city in Peru, South America. It 【小题1】 (build) many hundreds of years ago by the Incas, an ancient South American civilization (社会文明).

Machu Picchu is high up in the Andes Mountains of Peru. There are 3,000 stone steps 【小题2】 connect the city’s many different levels. This special stone city is very difficult 【小题3】 (get) to because it is so high in the mountains. It has only one way in and a stone wall to protect it.

Millions of people visit every year to see the stone city. The development of nearby towns and damage 【小题4】 the environment continue to destroy Machu Picchu. In 2017 the Peruvian government laid down some rules of 【小题5】 number of people who can visit Machu Picchu every day and even closed some sections to the public to protect the stone city.

Peru is taking 【小题6】 (it) protection of Machu Picchu one step further by starting a program to plant one million trees all around the protective zone that surrounds (围绕) the city. Apart from 【小题7】 (be) a really great environmentally friendly idea, the trees around Machu Picchu will 【小题8】 (certain) help to protect the historical landmark in many other 【小题9】 (way). The trees would help prevent mudslides (泥流) which can be very 【小题10】 (danger) and can destroy the site as well. It will also protect the area’s unique animals and plants.