Before science became professionalized in the 19th century,     1     naturalists were collecting information and helping us understand the natural world. A 2009 study found that nearly 50% of the UK     2    feed wild birds. The National Trust has more than 5 million members, and 60,000 active volunteers helping to protect the countryside as well as historic     3    . Now, with our environment arguably under greater threat than ever and species declining at a(n)    4    rate, volunteers are once again at the forefront of efforts to limit the damage.

Volunteers can be powerful drivers for big changes. On the Isle of Man, more than 8,000 people(nearly 10% of the population)are involved in regular weekend beach cleans. At one recent event, 123 volunteers turned up and removed 183 bags of litter in just a couple of hours. Thanks to     5    such as this, the island shares UNESCO biosphere reserve status with the Galapagos, Yellowstone in the US, Uluru in Australia, and hundreds of other sites.

Recreational divers are making a real difference underwater, too. They monitor the spread of     6    species, and record how native species respond. Divers also     7    levels of marine litter and other human impacts. Volunteers have also made a vital contribution to the conservation of basking sharks. The work of a citizen science Basking Shark Project in the 1980s and 1990s was     8    in getting these sharks on the protected species list in the UK, while satellite tagging     9    the first recorded trans-Atlantic crossing by a basking shark.

Actually, no one can know better, or care more about, our most special places than the volunteers who live in them and give up their free time to look after them. As a group of divers and     10    residents who live on the shores of the bay, they take their campaign on to national and international stages and continue to inspire people who might otherwise feel powerless when faced with threats to the places that matter to them.

Environment is very important to us all.However，our environment is getting     1     than before.Now more and more people realize that we should do something to help the Earth.Here are the things we can do：We can recycle glass，metal and paper.We shouldn’t throw     2     in the garbage can! We can     3     instead of driving cars! We should try to     4     short showers and turn off all the     5     and the TV when we leave the room.All of these things will help the Earth.

Mother earth is a place where     1     species can coexist. Unfortunately, wild animals have no place in the 21st century. Some people think that protecting these wild animals is a waste of     2    . But an increasing number of people come to realize that the disappearance of animals will result in a serious threat to     3    . It is hard to imagine what our world would be like without animals. There are enough farm animals providing us with sufficient and nutritious meat. Therefore, we don’t need to make use of wild animals, especially the     4     ones. To protect animals is to protect our living environment. So great efforts should be made by every     5     to keep the diversity of animals.

How we look and how we appear to others probably worry us more when we are in our teens or early twenties than at any other time in our life. Few of us are content to accept ourselves as we are, and few are brave enough to     1     the trends of fashion.

Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner. If we do, they tell us, we will be able to meet new people with confidence and deal with every situation without     2    . Changing fashion, of course, does not apply just to dress. A barber today does not cut a boy’s hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did. The advertisers show us the latest     3     styles and we are     4     under pressure to follow the fashion in case our friends think we are odd or dull.

What causes fashions to change?   Sometimes convenience or practical necessity or just the fancy of an influential person can     5     a fashion. Take hats, for example. In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside. In recent times, the late President Kennedy caused a(n)     6     in the American hat industry by not wearing hats: more American men followed his example.

Today, society is much freer and easier than it used to be. It is no longer necessary to dress like everyone else. Within reason, you can dress as you like or do your hair the way you like in stead of the way you should because it is the fashion. The     7     of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashions of the top fashion houses.

At the same time, appearance is still important in certain circumstances and then we must choose our clothes     8    . It would be foolish to go to an interview for a job in a law firm wearing jeans and a sweater; and it would be     9     to visit some distinguished scholar looking as if we were going to the beach or a night club. However, you need never feel depressed if you don’t look like the     10    fashion photo. Look around you and you’ll see that no one else does either!

Putting up her hair in a bun adorned with an elaborate hairpin and wearing a long gown with embroidery and loose sleeves, 19-year-old Chen Xi might be     1     for a time traveler from centuries ago if not for her face mask and cellphone.

"I was     2     by the beauty of hanfu in costume dramas at the very beginning. They looked fairy-like, and I really liked it," she said. "Fascinated by this special garment, many young Chinese like me become more interested in traditional Chinese culture, customs and music."

In 2018, the number of hanfu fans reached 2.04 million, up 72.9 percent year on year, according to a report on China's hanfu industry released by iiMedia Research, a Chinese consulting agency. A few years earlier, whenever Chen put on hanfu and walked on the street, passers-by gave her weird looks. Now things are different. Hanfu has seen a growing and more visible     3     in the daily life of China.

If you walk through the streets and parks in cities such as Hangzhou or Kunming, you may     4     upon an individual dressed in the sweeping ropes, crossed collars and wide sleeves of hanfu. Dressed in this way, they aim to keep the apparel and the rich culture behind it     5    .

Liu Dan, 43, put on his first hanfu suit and stepped out onto the street in 2006 when he returned from overseas to Kunming, the capital city of Southwest China's Yunnan province. He said the hanfu    6     started in the early 2000s on online forums and websites, but now the fashion has jumped out of the screen and onto the streets.

In 2007, Liu, with an educational background in software engineering,     7     the Yunnan Hanfu Association. The number of hanfu     8     in the association has grown from fewer than 10 to more than 10,000. Each weekend, they meet up for themed activities. Amid the COVID-19 epidemic, Liu has moved these cultural activities online.

Many companies have cashed in on the upsurge in hanfu popularity. E-commerce giant Alibaba and livestreaming platform Huya both have launched apps to     9     hanfu fans and thereby nurture online shopping sales.

Experts believe the resurgence of hanfu, like traditional songs and poems, is part of a larger trend to prize tradition, as the increasingly wealthy and     10     Chinese society sets off to reconnect with its cultural roots.