If you live in Shanghai, you might have to take a lesson in sorting garbage.     1     is now required that people should sort garbage into four categories —    2     (recycle), harmful, dry and wet waste. However, if people fail to sort their garbage properly, they can     3     (fine) up to 200 yuan.

More cities are introducing similar regulations,     4     (follow) the practice in Shanghai. However, garbage sorting is still a big problem in China. Only 30% of the     5     (participant) think they are adequately sorting their trash. It’s partly because many people lack their willingness to sort their own waste. “It’s     6     must to have a legal guarantee     7     (promote) garbage sorting,” said Liu Jianguo, a professor from Tsinghua University.

Aside from China, many other foreign countries     8     (introduce) garbage-sorting regulations in the past years. In Japan, waste sorting has become a basic survival skill. There is a     9     (fix) time for the disposal of each kind of garbage and littering can result     10     high fines and even jail time. Over 90% of the public believe that garbage sorting is important for the protection of the environment.

Green Hills, Clear Water, Blue Sky is a project that was set up     1     the government three years ago. Since it was started, many people have taken part. They think it is their duty     2    (make) the Earth beautiful and     3    (peace). At the same time, they insist that the government should play     4     important role and try     5    (they) best to protect the environment. Some owners of factories are. damaging the environment by     6    (pollute) rivers with chemical waste. So it     7    (believe) that the government should pass laws to punish people     8     damage the environment. Besides, the government should build conservation     9    (center )so that plants     10     animals in danger can be protected.

All in all, people and the government should work side by side to take care of the Earth.

Air pollution is no doubt a major concern in many big cities across the world. More than 80% of people living in urban areas     1     (expose) to unsafe air, according to a report     2     (deliver) by the World Health Organization.

“Urban air pollution continues to rise at     3     alarming rate, doing great ham to human health,” said Dr. Maria Neira, the director of Public Health and Environmental Policy at the WHO. “At the same time,     4     (aware) is rising and more cities are monitoring their air quality.”

In the past two years, the number of cities monitoring air pollution     5     (double)-now covering about 3,000 cities in 103 countries. The WHO warned of the serious effects poor air quality could have     6     the health of urban residents,     7     (link) it to the risk of strokes, heart disease, lung cancer and many other diseases.

The report also showed that low-and middle income countries     8     (general) have poorer air quality. About 98% of cities with 100,000 or more people in low-and middle-income countries do not meet WHO air quality guidelines,     9     56% in high-income countries fail to meet the standard. The report also urged local governments to take stronger and     10     (effect) measures to fight against air pollution.

The world itself is becoming much smaller by using modern traffic and modern communication means. Life today is much easier than it     1    hundreds of years ago,       2     it has brought new problems. One of the    3     (big) is pollution. Pollution comes in many     4     (form). We see it, smell it, drink it and even hear it.

Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious    5     there were not so many people. When the land     6     (use) up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now     7    (slow) polluting the whole world.

Air pollution is still the most serious. It’s bad for all living things in the world. Water pollution kills our fish and pollutes our drinking water. Noise pollution       8       (make) us angry more easily.

Many countries are making rules     9       (fight) pollution. They stop people from     10     (burn) coal in houses and the factories in the city, and from putting dirty smoke into the air.

The brightness of light from our cities has reached     1     high levels that it is reducing the darkness of night. A century ago, when night-time     2     (fall) the dark of night arrived. Things are     3     (differ) today. A new study reports that artificial light at night is increasing around the world. Scientists say it grew     4     2.2% a year between 2012 and 2016. This intrusion of artificial light is causing us many problems. The International Dark-Sky Association says, “it is not only damaging our view of the universe, but it is     5     (severe) threatening our environment, our safety, our energy consumption and our health”.

Dr. Franz Holker said artificial light is     6     threat to our natural environment. He called it a pollutant     7     threatens nocturnal animals and affects plants and microorganisms He added that it is affecting everything from bacteria to mammals, humans     8     (include). He said it is reshaping “entire social ecological systems”. Environmentalists thought LED lights would help. However, cities are using more LED lights because     9     are cheaper. This is adding to the pollution of light. Night-time light decreased in sixteen countries, including     10     (nation) at war, like Yemen and Syria.

10 . Like many travel industries, the negative influences on the environment seem to outweigh the positive     1     (one). Though the cruise industry is relatively small compared to the airline industry, cruise ships and their passengers generate more waste and pollutant emissions while travelling and docked in port. A one-week voyage generates more     2     50 tons of garbage, and 3.78 million litres of waste water is produced. That is water     3     is harmful to the ocean life and cannot be poured back into the ocean without     4     (treat). These numbers are multiplied by more than 200 cruise ships sailing the word 365 days a year.