1 . 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.

2 . When I was 13, I climbed my first mountain near my home. I was overweight then and ________ when I reached the top. But I loved the ________.

Two years ago, my friend Mel Olsen and I drove to Oregon to climb 11,240-foot Mount Hood.

As we went higher, the trail (山路) grew ________ and steeper. At around 9 a.m., we reached an ice step. Confident I was safe, I put my full ________ on it. Suddenly, I heard a ________, and the ice broke off the step, right under my foot.

In a second, I fell backward. Soon, I came to a stop on a flat slope. I ________ my whole body, feeling ________ that I was fine, except that I was suffering from a sharp pain in my left ________ and couldn’t move.

I ________ for help, and immediately Mel and other climbers came to assist me and called Mountain Rescue. Then I was loaded into a(n) ________ and taken to a hospital, ________ I stayed for four days. The doctors told me it would be a year before I could ________ again, but I was back on the trails within six months.

The fall has made me more ________. One slip (滑倒) on a mountain can change everything. But the experience also made me ________ as a person. Since the accident, I’ve climbed another 60 mountains. I’m not going to let one fall ________ me from doing my favorite thing.

4 . Brave dog wasn’t always his name. When we   ________ him first, he was all ________ and skinny-ribbed（皮包骨头的）， ________ worth a second look. But Mattie walked straight, “What a pretty dog!” The dog looked unsure, ________ he was not used to being spoken to kindly. “ ________ that Stray Dog,” I cried. “You know ________ Dad feels about stray dogs.” “Don’t call him Stray Dog,” said Mattie. “He’s a pretty dog and I’m ________ him. ”

To Mattie, he was Pretty Dog. She talked to him, played with him and fed him. He followed her everywhere. Both ________. One day, Dad discovered him. “Mattie! Get away from That Dog!” Dad ________. So Stray Dog became That Dog.

One cold winter day, Dad went ________. Mattie wanted to go, but Dad didn’t ________ .

A few hours later, Dad came home with some fish. “Where is Mattie?” Dad asked. Mom and I were in confusion(困惑地), both ________ Mattie was with the other. “Maybe she went after you.” “ ________ she never came to the lake. Come on, we must find her.”

We were so ________ about her safety that we hurried out. ________, we didn’t find her.

Suddenly, some dog barks(犬吠) ________. “It’s That Dog!” Following the barks, we found Mattie ________ under a fallen tree. We felt relaxed. Mattie said, “We got lost. Then I fell and hurt my foot so I couldn’t ________. Pretty Dog kept me ________.” I don’t remember who started calling him ________, but that was his name from then on.