1 . Noise pollution isn't just annoying: it can cause deafness, tiredness, and even mental problems.     1     The following measures will help your community stay quiet:

Don't use your car horn (喇叭) unnecessarily. Don't be part of the problem by leaning on your horn every time someone looks at you wrong on the street. Use your horn only when absolutely necessary.     2    

Keep your car in good repair. The sound of a car chugging (发出嘎嘎声) down the street is never welcome.     3     Keeping your car in good, quiet working order will be appreciated by everyone who lives near you.

Keep your music down. It might sound beautiful to you, but others might not feel the same way.     4     If you know that the neighbors don't mind, feel free to keep your windows open and let them enjoy your musical taste, but don't just wish that everyone wants to hear your favorite music as much as you do.

    5    Whether the rule is unspoken or obviously published, make sure you don't make noise at night. Don't put your neighbors in the position of having to ask you to be quiet, since it makes for unfriendly relations. Do your best to be a good neighbor so you can expect the same from those around you.

4 . The human race shares this planet with millions of other species and forms of life. In recognizing that, it is always important to remember that our rapid rise of the urban civilization(城市文明) has unavoidably impacted the planet and life on it.

In the long run, however, the civilization risks destroying well balanced ecosystems, which could potentially have serious results for humanity itself. As such,we must eventually find a balance between development and nature which can maintain the ecology, beauty and harmony(和谐) of the earth.

The word “harmony” is an important concept in China. Chinese society and culture are built on the idea that relationships between people should be harmonious, which means avoiding conflict, highlighting a common good and balancing uncontrollable desires with the needs of society as a whole. However, this idea does not just apply to people, it also applies to our relationships with the world and nature. Never has this been more meaningful than the view of how China handles its rapid development, which has lastingly changed the country’s landscape and created new challenges regarding nature and the environment.

Actually, over the past few years China has been working hard to protect biodiversity and has drawn “red lines” for ecological protection, established a national park system, and undertaken major projects for biodiversity protection.

One example of China’s success in this area is in its reversing(逆转) of the decrease of its giant panda population to the point that it is no longer endangered. This effort included creating a giant panda national park in 2016 and doubling the number of births. Pandas have become “a global symbol of conservation success”—something in which China has played a key part.

Likewise, China is also taking its efforts overseas. It recently announced a $232 million fund to promote biodiversity protection in developing countries. The effort is a part of its “community of shared future for mankind”, meaning that we share one world, one planet and one future, and so we human beings must work together. Now it is the time to act.

8 . People today are not unfamiliar with term such as "going eco-friendly" and "sustainable lifestyle". However, there exists a group of sceptics（怀疑论者）who believe that going eco-friendly is merely a fad（一时的风尚）. I disagree with this viewpoint, Going eco-friendly is not merely a fad and it does, in fact, change the beliefs and attitudes of people.

The long-term presence of environmental organisations shows the efforts that people have made towards going eco-friendly. Organisations such as World Wildlife Fund advocate people to go eco-friendly. The high involvement of the organisations and the participants is thus a strong indicator that going eco-friendly is not merely a fad but a trend that can last decades.

Another strong indicator is the emergence of sustainable products in many industries, such as organic produce and electric vehicles. The consumer demand, coupled with eco-conscious（环保意识的）businesses, is behind the sharp increase in such products. This shows a shift in the beliefs and attitudes of people towards adopting a sustainable lifestyle. Thus, it seems quite certain that going eco-friendly is not merely a fad.

While some people who broadcast their eco-friendly practices are criticised for just hoping to project an eco-conscious image, there are a number of celebrities who have been practising the zero-waste lifestyle for years. For those who do so for years, and not mere days or months, it is indeed a commitment that can only come with a true change in beliefs and attitudes towards caring for the earth.

The call to save the earth looks set to stay. With the development of technology and the appearance of many platforms advocating going green, people are more willing to change their beliefs and attitudes when they can learn about and appreciate the positive impact of the work of different environmental organisations and individuals. It is hoped that these effects will go a long way in ensuring that our planet will remain a suitable place to live in.

10 . When it comes to sharks, many people think of their pointy fins and violent nature. But there is more to sharks than their sharp teeth: The creature appeared on earth 410 million years ago, before dinosaurs.

However, sharks are now at the edge of extinction. Numbers of sharks have decreased by 71% over the past 50 years, according to the research published in Nature. “Such sharp decreases are shocking even to experts, especially when compared to land animal statistics,” Sonja Fordham at Shark Advocates International told New Scientist magazine. “This data(数据) may be an underestimate(低估) of reality because of unreported fish catches,” noted Nathan Pacoureau, a researcher of the study team.

The study included 31 species; 24 now risk extinction, and 3 shark species are now classified as highly endangered. The study found the decrease hit the largest species first before influencing smaller ones over time, according to the International Union for Conservation of Nature. It also said that shark finning and fishing worldwide have driven the decrease. “The Indian Ocean is the worst. There is almost no fishery management at all,” said Pacoureau.

“Overfishing of sharks destroys the health of entire ocean ecosystems as well as food safety for some countries,” said Nicholas Dulvy, a professor of Simon Fraser University in British Columbia, Canada. “The researchers are calling on immediate action to ensure a brighter future for these animals,” according to the BBC.

Although the situation looks depressing, the future of sharks is not doomed(注定)yet. 25 species have recovered because of long-term protection campaigns in the past decades. A couple of shark species have started to recover through science-based fishing limits. These examples provide living evidence that the world can set and meet biodiversity goals.