Olympic and Paralympic medals for the Tokyo 2020 Games will be made from recycled mobile phones donated by the public.

Olympic host cities have     1     (tradition) obtained the metal from mining firms. But Japan,     2     lacks its own mineral resources, is keen on taking the theme of a sustainable future a step     3     (far).

“A project which allows the people of Japan     4     (participate) in creating the medals is really good, and helps raise the environmental awareness of our citizens,” said Tokyo 2020 sports     5     (direct) Koji Murofushi. “    6     the resources of our earth are limited, we need to recycle more and avoid waste. This program is setting an example.”

Collection boxes have been placed in local offices and telecom stores and they will remain there until the metal required     7     (collect).

Members of the organizing committee put forward the idea to government officials and companies earlier this year and won their support.

As a result, the medals hanging around Olympic winners’ necks will carry even more meaning     8     usual. People’s personal memories, once     9     (store) in their smart phones and other handheld devices, will take the round shape of an Olympic medal, one of the most precious     10     (prize) in sport.

On Oct 8th, 2019, Iceland honored the passing of Okjokull, the first of Iceland’s glaciers to disappear on account of climate change. In 1890, the glacier ice covered 16 square kilometers but in 2012, it     1     (measure) just 0.7 square kilometers. A monument is set up at the site of the former glacier,     2     bears the inscription (题词) A Letter to the Future, and is intended     3     (raise) awareness about the decline of glaciers and the effects of climate change.

The world is quickly realizing     4     is necessary to actively pull carbon dioxide out of the atmosphere to prevent the ill effects of climate change. Scientists and engineers have proposed a     5     (various) of techniques to deal with the change.     6     , most would be extremely expensive — without     7     (bring) any profits. Therefore, no one wants to foot the bill.

One method explored in the past decade might now be a step closer     8     becoming practical. The process     9     (involve) pumping CO₂ carried through the air down into methane hydrates (甲烷水合物) right under the seafloor, where the gas will be     10     (permanent) stored, or separated. The incoming CO₂ pushes out the methane, which will be piped to the surface and burned to provide electricity, to power the separation operation or to bring in money to pay for it.

Two disabled Chinese citizens who have planted trees     1    (voluntary) in Northern China have been voted (投票) by Chinese citizens as their inspiring heroes.

The vote     2    (organize) by Xinhua News Agency since 2011 to inspire moral strength in the public by highlighting the good deeds of ordinary people. The event is the first of its kind     3    (find) heroes among grassroots people.

Jia Wenqi and Jia Haixia, both of     4     are aged over 50, have arm and sight disabilities. Disabled     5     they are, they have planted over 10,000 trees in Jingxing County over the past 13 years, preventing their village from flooding and improving the environmental surroundings.

“I am his hands; he is my eyes,” says Haixia. “We are good partners.”

Fully     6    (devote) to protecting the environment, they have turned the wasteland into a green one, which attracts     7     large number of birds.     8    (plant) trees has become an important part of their life.

Despite their disabilities, they form a great team that makes a huge     9    (different). They deserve to be called heroes     10     their unusual effort and amazing deed!