4 . My 5-year-old daughter Kai walked around a bus stop, picking up candy wrappers and plastic bottles and throwing them in the waste bin. We were a visiting family here, but she was cleaning the sidewalk, which didn’t shock me, nor was I _________ when strangers looked at us.

Our cleanup project began when we drove past an empty field one day and Kai _________ the field was covered by _________ balloons. We had read about how animals could _________ balloons for food. “Stop,” Kai said, and I _________. Surprisingly, we found the field was full of much trash _________ the balloons. “Can we come back and clean it?” Kai asked. Then each Friday, we returned to have a(n) _________ cleaning.

However, it seems we can never _________ the trash completely. I feel something close to _________! Why are we making kids clean up our __________? It has everything to do with the planet we adults are leaving for kids. Plastic pollution is globally distributed and microplastics have even been discovered in human blood. It is not a __________ story that we have created trash but our next generation cleans up them.

Now Kai hopes to become a marine biologist to protect sharks one day. She still has many years to __________, if adults get serious about solving plastic pollution. We shouldn’t leave our next generation a __________ planet and expect them to save it.

The last time our family was at the beach, we still picked up plastic bottles. Most __________, though, we saw an octopus (章鱼) playing around our feet, a __________ of a harmonious habitat worth protecting.

6 . After a relaxing July day at the Jersey Shore in 2021, Jessica Reeder and her two children headed home to Philadelphia. As they reached Pennsylvania, they were greeted with a yellow-gray sky. It reminded Reeder of what she often saw in Southern California in her childhood when wildfires were burning.

In North America, most large wildfires occur in the western states and Canada. But smoke generated in the West doesn’t stay there. It tends to travel east. Within days, it can dirty the air in the Midwest and even East Coast towns. Today, most asthma (哮喘)-related US deaths and emergency-room visits from wildfire smoke occur in eastern cities.

The big problem comes from tiny aerosols (气溶胶) ― bits of ash, and other droplets in the air. Scientists refer to this mix as particulate matter, or PM.

The smaller the PM is, the longer it can stay in the air. And the longer it floats, the farther it can travel. The especially worrisome sizes are known as PM2.5. These bits are no more than 2.5 micrometers wide. That’s about one-thirtieth the width of a human hair. These aerosols are so small that they can be breathed deeply into the lungs. PM2.5 has been linked with breathing-related injury and heart disease.

Over the last few decades, US clean-air laws have set limits on emissions (排放) of PM from industrial sources. That has helped clean the air in many cities. But these rules don’t cover PM from wildfire smoke. Recent studies have shown that aerosols from wildfires may be more poisonous than industrial sources of these pollutants.

So far, much of the science on how wildfire PM2.5 can sicken people has focused on people exposed to smoke near fires in the US West. Now, researchers are turning their attention to how this smoke may be affecting people as far away as the East Coast. With climate change increasing the intensity and frequency of wildfires, people across North America need to be more concerned about the health impacts of this smoke.

8 . With a consulting room, an intensive care unit and a rehabilitation center, the Wucheng wildlife rescue center near Poyang Lake has become a place for sick and injured wintering birds to recover.

”We have _________76 birds over the past two years. People send sick and injured birds to us whenever they find one,” said Shu Guolei, director of the rescue center in Yongxiu county, Jiangxi province. The rescue center is part of the Wucheng station, under the administration of the Poyang Lake Wetland Nature Reserve. With a surface area of over 3,200 square kilometers, Poyang Lake _________up to 700,000 wintering birds every year. The lake is an important wetland ecosystem and the largest _________for wintering migratory birds in Asia.

Shu said meals are provided for the sick birds according to their species and _________habits. “For example, a corn and rice combo is given to ducks, geese and swans, and a fish and shrimp combo is for the oriental storks.” After a full _________, the birds are released into the wild, Shu added.

Nearly 98 percent of the world’s white cranes, over 80 percent of the oriental storks and more than 70 percent of the white-naped cranes spend their _________at the lake before flying to warmer regions. To explore a more effective mechanism to protect the flocks of birds, Jiangxi province coordinates the work of the nature reserve, local public security bureaus and health departments. More and more local residents are also joining in efforts to rescue injured birds as their awareness of _________protection grows.

Li Chunru, 75, has cared for injured birds for nearly four decades. _________a doctor at a hospital in Jiangxi’s Duchang county, Li founded a clinic for birds in 2013 that is capable of taking care of 200 at a time. The clinic is _________consulting rooms, an intensive care unit, inpatient wards, recovery rooms and outdoor sheds. Bird rescue centers across China also work together to ensure safe trips for migratory birds after their treatment and recovery.

On Jan 2, migratory bird protection centers in Jiangxi and Tianjin released nine recovered birds in Duchang, including oriental storks, gray cranes, swans and geese. Seven of the birds had been brought from Tianjin for treatment. The birds were released in Poyang Lake so they could more easily __________their flock, said LiZhenzhuo, director of a wildlife conservation center in Tianjin.

__________improving the habitat and beefing up rescue efforts, local governments in the province have also increased forage(饲料)supplies for the birds. Hu Wei, the Party secretary of Yugan county, Jiangxi, said since November nearly 3,000 white cranes had gathered in a paddy area covering 60 hectares to look for food. “Last summer, a major flood in the Yangtze River __________the natural food supply for the birds, so we urgently secured dozens of hectares of unharvested rice for the flocks,” he said.

Liu Xinxi, an official with the Poyang Lake Wetland Park, said the birds are becoming less __________. “They used to only forage in the remote lake area, but now they can be seen in the fields and pools that are __________to people,” he said.

Dai Nianhua, a researcher with the Institute of Bioresources at the Jiangxi Academy of Sciences, said the implementation of a 10-year fishing ban in Poyang Lake has better protected aquatic organisms and created __________conditions for birds to breed.

“With people’s increasing awareness of environmental protection, the ecological environment of Poyang Lake has been improving,” Dai said.

Paris, known as the City of Love, shines bright all day long. The lights of the city attract     1     (tourist) and keep the atmosphere warm and glowing.

However, these lights are not environmentally friendly because they are always on. One group of Parkour athletes,     2     get from one point to another by running, climbing, and jumping, decided to take matters into their own hands.

More than ten years ago, Paris City Hall passed a law,     3     (encourage) stores to turn lights off between 1:00 a.m. and 6:00 a.m..     4     (unfortunate), in the hope of attracting more people, many stores ignored this policy. That is, until the Parkour athletes.

    5     (tire) of this waste of electricity, athletes go out at night, determined to reduce the overuse of light. They seek out emergency light switches that     6     (locate) outside the stores. Using their parkour skills, they switch     7     as many lights as they can. Groups like “On The Spot” record themselves throughout the night and post it on social media, spreading awareness and encouraging others to find     8     (create) ways to help the planet.

On top of this, recently the government     9     (pass) a law that clearly states the rules for advertisement signs and enforces (执行)     10     fine of $1,480 if lights are not turned off during the night.