【推荐1】Alison Teal, born to an adventure-loving mom and a National Geographic photographer dad, was already exploring the world as a child. The family traveled the globe ________ in a six-foot-wide tent. From mountaintops to jungles, they ________ themselves in local nature and culture.

Between ________ they would return home in Hawaii. Their front yard was the ocean, and her friends were dolphins. Alison would dive into the water and release a ________. A dolphin would ________ it on its nose and pass it to the next dolphin. Over the years, the dolphins grew to ________ Alison. They looked for her and ________ her in the water.

After studying archaeology at UC Berkeley and then ________ from USC film school, she ________ her world travels. During her exploration, what surprised her was the amount of plastic that washed up on the shore. “After that, I couldn’t ________ our plastic problem,” says Alison. “I ________ made my decision to protect our greatest resource, the ocean.”

She didn’t need to go far to do so. Swimming in ________ waters back home, she found her dolphin friends were no longer passing sea leaves to each other, but bits of plastic. “It ________ my heart,” says Alison. “Dolphins are ________, joyful and caring. We’ve had such a special ________ through the years. Of course, I want to protect them.”

Along with sharing her ________ with her large Instagram following, she also gave a TED talk to help ban plastic bags in California. Her book, Alison’s Adventures, is filled with travel tales and ________ lessons.

Alison believes all of us can make ________ to protect the Earth and, ________ those we love. “________, the pandemic has made us realize how connected we all are, and we can love each other to give us health and life.” she says.

【推荐2】Paris has set a goal of making the Seine swimmable by 2024 when it will host the Olympic Games. If it _________ it will be the first time that _________ in the Seine is legal in over 100 years. To do that, though, the city will have to significantly _________ the levels of toxic (有毒的) bacteria that flow through the river. Then there’s _________   treasure hidden at the bottom.

Around 360 tons of plastic are found in the Seine every year.

_________ for Paris,11-year-old Raphael is on the case. For nearly two years, he has _________ nearly every weekend with his dad, _________ debris (垃圾，残骸) out of the almost 725-kilometer stretch of water. A typical _________ can include anything from an iPhone to an electric scooter.

It all started in 2019 when Raphael saw a video from someone doing something _________. So, Raphael asked his parents for ropes, a hook and a powerful magnet (磁铁) that could __________ metal objects weighing more than a ton.

“At first, it was just meant to be a leisurely weekend __________,” Raphael said. “But once I saw just how much __________ there was buried at the bottom of the river, it became like a full-time __________ and I wanted other people to know, too.”

Last October, Raphael was even awarded the Medal of Paris for his __________. While he’s not sure if he can make the entire Seine glisten by the 2024 Olympics, he hopes he’ll be one of the first __________ in the water once it’s declared safe.

【推荐2】New bike-on-demand services give a new dimension to urban sharing economy. In the 1980s, a bicycle, a radio and a sewing machine were considered as the top three _______ for Chinese couples. At the time, China was the “Kingdom of Bicycles”—bikes were key to people’s daily transportation. Now, the country _______ the world’s largest automobile market. Yet, ambitious entrepreneurs keep attempting to _______ lost glory to bikes. Their strategy, however, is changing.

GPS-enabled and painted in _______ orange, at least 100, 000 Mobikes are in service in Beijing, Shenzhen, Guangzhou and Chengdu. And with its signature yellow bikes, of now connects’ about 227, 000 bicycles in 21 cities. Newcomers like Hello-bike and Ubike are catching up.

Unlike traditional public bikes that have to be borrowed at and returned to a bike stand after a journey, sharing bikes save people from such troubles. Using an intelligent lock with _______ functions to help users locate and borrow bikes, these smart bicycles can be parked in any public area _______ by a local government. Normally, they can be unlocked in seconds by simply scanning the _______ QR code on each bike. Suitable for both enthusiastic cyclists and daily short-distance commuters, the round-the- clock, hourly-charging service is obviously a (an) _______.

But bike-sharing platforms face grave (严峻的) maintenance and management challenges. Damage to and losses of bikes, along with improper parking, are often reported-despite their owner’ _______ calls for proper, considerate use. Regular disappearance and damage reports have not just __________ extra financial burdens of the bike- sharing companies, but also raised the costs of offering such a service __________ decent customers. Parking in unauthorized areas __________ a challenge to urban management, too.

That some 200 sharing bicycles were impounded (扣留) last month by the urban management authorities in Chengdu for “illegally occupying public space”, however, is not a kind of rule needed. Rather, what local government should do is to adapt to the rising trend of bike sharing, and __________ rules keeping the local conditions and people’s convenience in mind.

Bike sharing services should be welcomed by cities aspiring to promote green transport and reduce vehicle emissions and congestion. The GPS system installed on these bikes can help the service apps easily __________ the unruly (不守规矩的)users, who are less likely to repeat their mistakes if given an official warning by the urban management authorities.

The service apps do have other options besides issuing penalties. Keeping a record of customers using shared bikes and adding it to their credit record would be a(an) __________ attempt, so would recruiting volunteers to supervise and report improper use.