Denmark wants to make all domestic flights fossil fuel-free by 2030. Prime Minister Mette Frederiksen announced the goal in a New Year speech. Denmark【小题1】     (be) known for its green qualification. It is famous as a heaven for cyclists and a huge destination for eco-minded food experts, and now it even has【小题2】   waste-to-energy plant complete with its own ski spot.

Most impressively of all, though, the country aims to reduce its carbon emissions【小题3】   70 percent by 2030. In the speech,Prime Minister Mette Frederiksen said such changes were necessary 【小题4】 “to travel is to live and therefore we fly”. Researchers are already working on【小题5】     (find) alternative fuels for those flights, and hydrogen(氢) is the 【小题6】(likely) competitor.

【小题7】(fortunate), the Scandinavian country isn’t the only nation trying to make flying a greener travel option. By 2030, Sweden wants all airlines to have switched to bio-fuels. To make this happen, they【小题8】(tax) on the emissions of their fossil fuel-powered flights soon. In   France, meanwhile, flights which could be replaced by a train trip that takes under two and a half hours are likely【小题9】(ban). That’s all great news,and hopefully a sign of even greater things to come. Could a big【小题10】(play) like the USA or China be next?

Koalas usually get the water they need from the eucalyptus (桉树)leaves they eat, 【小题1】 as drought and wildfires caused by climate change dry out their food 【小题2】 (supply), many koalas are starting to drink water.

Robert Frend, a farmer from New South Wales, Australia, 【小题3】 (notice) how thirsty the koalas got and helped researchers at the University of Sydney bring them water. Frend invented something called Blinky Drinkers, a water station 【小题4】 (attach) to trees so that koalas can drink all they want.

In April 2016, researchers set up 10 of these water stations on the ground and up in the trees on a large piece of land 【小题5】 a sizable population of koalas. They also built up a surveillance (监视) system 【小题6】 (see) how much the koalas were using the Blinky Drinkers.

【小题7】 they found was surprising: The koalas drank a lot, even waking up during the day, when they 【小题8】 (normal) sleep, to go to drink water from the stations on the ground. All of the Blinky Drinkers 【小题9】 (visit) 一193 times in total. And this was in the fall and winter seasons, when the heat isn’t so severe.

Researchers were excited to find out something new about how animals change 【小题10】 (they) behavior based on climate change and worried about the future of the koalas.

Situated on the outskirts of Hangzhou in East China’s Zhejiang province, Xixi National Wetland Park is the first national wetland park in China. For the abundant ecological【小题1】(resource), natural unaffected scenery and deep cultural influence here, it is the only natural wetland park combining agricultural wetland【小题2】cultural wetland in China now.

When【小题3】(visit) the Xixi National Wetland Park on March 31, 2020, President Xi Jinping pointed out that the value of the wetlands lies in their【小题4】(origin) ecology, and that environmental protection should be prioritized (优先) in the wetlands.

With an area of 11.5 square kilometers, the park【小题5】(cover) by streams, ponds, lakes. With a large number of trees【小题6】(plant) in the shallows, the wetland is a natural system for providing clean water and producing oxygen,【小题7】makes it the “green lungs of Hangzhou” as well as【小题8】great platform for bird watching, scientific research and education.

In recent years, the wetland park【小题9】(develop) scientifically and has been playing vital role in the development of Hangzhou, a place properly【小题10】(name) “Paradise on Earth”