The Palace Museum is becoming waste-free as the 720,000-square-meter structure has managed     1     (reduce) the number of rubbish bins to 110 sets in areas open to the public. This is a decrease from 310 sets     2     (record) in January 2020, when a zero-waste campaign     3     (launch), said the museum.

While protecting features of the six-century-old historical relic, the action also helps visitors and tourists get into     4     habit of creating less waste. Up to now, four types of rubbish bins have been equipped following Beijing’s regulations on the management of household waste. Cleaning staff also check them to make sure all rubbish is     5     (correct) sorted, which is later transported to different destinations for disposal (处理). The museum also recycled more than 32,000 plastic     6     (bottle) to make cultural and creative products between June 2021 and October 2023,     7     (mean) a reduction in carbon emission by 931 kilograms.

By launching the campaign, the Palace Museum is taking a careful, science-based way to waste management. The target is to minimize the production of waste     8     needs to be buried or burned and bring the amount of such waste as close     9     zero as possible.

So far, about 3,000 museum staff members, 40,000 tourist guides, and 21 million visitors     10     (participate) in the campaign.

Earth Day was founded in 1970 as a day of education about environmental problems, and Earth Day 2020     1     (fall) on Wednesday, April 22 — the holiday’s 50th anniversary. The holiday is now a global celebration that’s sometimes extended into Earth Week, a full seven days of events focused on green living.

    2    (elect) to the U. S. Senate (参议院) in 1962, Senator Gaylord Nelson was determined to convince the federal government that the planet was     3     risk. In 1969, Nelson developed the idea for Earth Day after     4     (inspire) by some teaching activities     5     were taking place on college campuses around the United States.

Denis Hayes, a young activist who had served as student president at Stanford University,     6    (select) as Earth Day’s national coordinator (协调者), and he worked with     7     army of student volunteers and several staff members from Nelson’s Senate office     8    (organize) the project.

The first Earth Day was effective at raising     9     (aware) about environmental problems and transforming public attitudes. Earth Day kicked off the “Environmental decade with a bang,” as Senator Nelson later put it. The theme of Earth Day 2020 is “climate action.” EarthDay.org hopes it will be the     10     (large) volunteer event in history.

Tibetan antelopes live on the plains of Tibet, Xinjiang and Qinghai. When I     1     (watch) them move slowly across the green grass, I am struck by their     2     (beautiful). At the same time, I am also reminded     3     the danger they are in. Right now they     4     (hunt), illegally, for their valuable fur.

Zhaxi who works at the Nature Reserve (保护区) says, “    5     (actual), we are trying to save ourselves, not only the animals.” In the 1980-1990, the number of the antelopes     6     (reduce) by 50 percent. The hunters were shooting antelopes     7     (make) profits. Their habitats were becoming     8     (small) than before,     9     new roads and railways were built.

In order to save them, the government take     10     (effect) measures and the antelope population has recovered. In June, 2015, the Tibetan antelopes was removed from the endangered list.

Global warming could make humans shorter, warn scientists who are said     1     (find) evidence that it caused the world’s first horses to shrink nearly 50 million years ago.

In fact a team from the universities of Florida and Nebraska says it has found a link between the earth     2     (heat) up and the size of mammals—horses. The scientists used fossils to follow the evolution (进化) of horses from their earliest     3     (appear) 56 million years ago.

“As temperatures went up,    4     (they) size went down, and vice versa; at one point they were as small as a housecat,” said Dr. Jonathan Bloch, curator of the Florida Museum of Natural History. The scientists say that the current warming could have the same influence     5     mammals — and could even make humans     6     (small).

Horses    7     (start) out small, about the size of a small dog like a miniature schnauzer.     8     is surprising is that after they first appeared, they then became even smaller and then     9     (drama) increased in size, and that exactly agrees with the global warming event. “It had been known that mammals were small when it was warm,     10     we hadn’t understood that the temperature really was driving the evolution of body size,” Dr. Bloch said in the Science journal.

A new book for children     1     (call) Climate Change is co-written by Charles Ⅲ, Tony Juniper and Emily Shuck burgh. Charles Ⅲ, well-known as the king of the United Kingdom,     2     (be) also an environmentalist and has spoken about the environment for many years. In     3     (he) new book, he hopes children will learn more about the problems our planet is facing. Juniper, who is the chairperson of an organization, told reporters that he hoped     4     (write) a book for children aged 7 to 11 and bring the facts to those children who will benefit a lot by finding better     5     (solution) to the environmental problems.

Last Friday, Juniper went to     6     event at Buckingham Palace in London, which       7     (host) by King Charles. Many business leaders were also invited to the event. At the palace get-together, Juniper said he was excited to see so many children willing to help Earth and that he would try his best to put something into their hands     8    is about basic ideas of protecting the environment. King Charles said, “Ever since I was a young teenager, I have been     9     (deep) worried about the way we have shaped our world. I hope that more children across the world can participate     10     the activities of protecting our Earth.”

The Palace Museum in Beijing, the capital of China, is becoming waste-free. The 720,000-square-meter structure has managed     1    (reduce) the number of rubbish bins to 110 sets in areas open to     2     public. It is a decrease from 310 sets logged in January 2020, when a zero-waste campaign     3    (launch), said the museum.

While     4    (protect) features of the six-century-old historical relic, the action also helps visitors and tourists get into the habit     5     creating less waste. The museum also recycled more than 32,000 plastic bottles to make cultural and creative     6    (product) between June 2021 and October 2023,     7     is equal to a reduction in carbon emission by 931 kilograms.

By launching the campaign, the Palace Museum is taking a science-based and cautious approach to waste. The target is to minimize the generation of waste that needs to be buried     8     burned and bring the amount of such waste infinitely close to zero, said the museum.

Up till now,     9    (approximate) 3,000 museum staff members, 40,000 tourist guides, and 21 million visitors     10    (participate) in the campaign. And the figure is updating.

When Peter Sänger and Liang Wu got together, it     1     (strike) them that they must be long-lost friends. Both firmly advocate the fight     2     air pollution. They believe that if you can’t measure it, you can’t beat it. That’s     3     they founded Green City Solutions, the solution to quantifiably improve city air.

Their invention, the CityTree, acts as an air purifier, an interesting     4     (add) to urban trees and green spaces. Rooted in science, air pollution can be eaten by the vertical flat-paneled (平面的) “trees”     5     (dot) around cities across Europe, while the “trees” also act as seats for pedestrians. Sänger and Wu’s vision is for a world in which people in cities can live     6    (healthy). They long to create living conditions that allow all people around the world to permanently have cleaner air     7     (breathe).

The CityTree combines     8     air-purifying feature of moss with remote technology to increase the air flow through the “trees”. This allows them to “suck up” and clean more air than normal, and the amount they purify can be increased     9     (depend) on pollution levels at different times of day.

The German green-tech start-up is now funded by the European Commission. A CityTree network of 15 brand new units will be set up and tested in a     10     (science) way in Berlin’s pollution hotspots next year.