Last weekend, I took part in a forest clean-up activity. It was organized by Green Hope, an organization devoted to protecting forests.起初，我不想参加，    1    but then I thought, “What if nobody goes?”

Our team leader, Joe, took us to a forest outside the city. I was sad to find rubbish everywhere.     2    There was a “No littering” sign at the entrance to the forest, but that didn’t stop people from throwing their rubbish on the ground. Joe divided us into two groups:    3     one group cleaned up the north side of the forest, and the other the south side. After several hours’ work,看到森林比以前看起来要干净些，我们很开心    4    It was absolutely worth our effort!

There will be another clean-up activity in the greenbelt next Saturday. You can call Joe and sign up    5     if you would like to help. Everyone who takes part in the activity will receive a medal. I’ll join you too if I have time.

5 . Tian Wangui and his wife Lu Min are villagers in Qiantian Village, Liaoning Province. They began planting trees over forty years ago. With their hard work, the two barren (贫瘠的) mountains are covered by trees now.

After leaving the army in the 1980s, Tian got back home and began planting fruit trees on the hills. In 1982, the couple got the contract rights (承包经营权) of two mountains. At first, they planted some young fruit trees on part of the land. In order to water them, they had to carry water up to the top of the mountains many times a day by themselves.

Now, the two mountains are covered by more than 50,000 trees of over 20 kinds. More than 2,000 birds live in the trees in the mountains.

“We cared for the mountains and trees as we cared for our children,” said Lu. “Even as we grow old, our children will protect the woods, watch over the birds and keep our dream alive.”

6 . For many years, the Caribbean island of Redonda was a bare (光秃秃的) rock with very little wildlife on it. Thanks to local environmental groups, it has now returned to its former state and was recently named a protected area by the government.

Redonda was once a peaceful place for wildlife. In the 17th century, people set foot on the island for the first time and found that guano (海鸟粪) produced by seabirds was useful to help farm crops grow. Humans began to mine the guano, and with the people came goats and black rats—invasive (入侵的) species.

Although humans eventually stopped collecting guano and left the island, the goats and rats stayed behind. They ate many of the island’s plants and preyed on other species, eventually leaving Redonda a plantless landscape. Without plants, birds began to fly away from there and some of the soil broke into pieces and then into the sea.

In 2016, conservationists started a project to help the island and its wildlife recover. They began by removing the invasive species. Within months, the island’s plants began to grow back on their own. As the environment gradually became healthier, species that were native to the island began to appear again.

The new protected area, the Redonda Ecosystem Reserve, includes the island itself plus the sea around it, including seagrass field and a coral reef. Conservation groups will ensure that the island is protected from other invasive species, and strict rules about fishing in the area will be put in place.

7 . Around the World

Here is big news from Around the World.

The Chengdu Science Fiction Museum has opened its doors to the public. China’s newest museum—a star-shaped building on a lake was built in 12 months. Technology sped up the design and construction of the 635,070-square-foot museum, which has galleries, educational spaces, and cafés.

Thousands of people lined the streets of Mexico City to watch its annual Day of the Dead parade. The holiday was observed from October 31 to November 2 to remember and celebrate loved ones who have died. During this time, the dead are believed to return to the world. Families welcome them back with offerings, such as their favorite food.

A modern art exhibit at the Pyramids of Giza, titled Forever Is Now, has returned for a third year. This year’s show is the biggest yet and features works by 14 artists. The free event aims to celebrate ancient Egyptian culture with modern skills. Artists were careful not to harm the 4,500-year-old World Heritage Site.

Elementary schools in Delhi are closed for at least one week because of the city’s poor air quality. The amount of harmful materials in the air has reached nearly 100 times the acceptable limit. Delhi is often very polluted in November because that is when many farmers burn their remaining crops. To reduce the smog, officials in the city have banned polluting vehicles, construction work, and the use of fireworks.

8 . A man named Randy liked to look for big trees and old trees. He made maps to show where these trees were. He did not want to cut them down. He wanted people to take care of them.

Randy was told that there was a very tall tree on Vancouver Island. The tree was said to be 314 feet tall. That would make it the tallest tree in Canada. Randy started to find the tree.

But someone else found it first. It was found by a logger (伐木工). Loggers wanted to cut down Canada’s tallest tree and all the trees around it.

Randy made a path in the forest so people could see the tallest tree. The tree was so big and beautiful that it would bring them enjoyment. More and more people wanted to save that forest. Thanks to these people, that forest is now a park. Canada’s tallest tree is still there.

9 . Last summer, a team of 15 primary and middle school students did a research on the biodiversity (生物多样性) of a small wetland (湿地) in Wuhan’s Houxianghe Park. They observed and recorded the number of plant and animal species (物种) there and made suggestions for improvement.

During their field research, the team found that there were few fish in the wetland. After further study, they found that there were not enough plants in the wetland for fish and other animals to develop in large groups.

In the following courses, students worked together to create design drawings and make a wetland-recovering plan. Thanks to their efforts, the biodiversity of the wetland has been greatly improved.

“It’s very meaningful,” said a primary school student in Wuhan. “I have learned a lot about strange animals and plants, and have also seen the improvement of the wetland. I’ll take part in more activities like this. ”

“It’s not easy for children to have a connection to nature in the city,” said an expert. “We should make full use of the city’s wetland and encourage more children to get closer to nature through the ‘Park Classes’ programme.”

In the past six years, the programme has carried out over 3, 000 activities in Wuhan’s 32 parks. It inspires students from primary and middle schools to learn more about environmental protection, and helps them get close to nature, developing their ability to explore and take action.