“Are you sure it is alive (活着)?” asked Jack. “I don’t see it _______.” He was looking at a sloth (树懒). It moves so slowly that people can not find it and it always looks asleep. “It is the slowest-moving mammal (哺乳动物) in the world,” the _______, Alex who has looked after the sloth for six years in the zoo told Jack. “It can’t walk. On the _______, they move hand over hand slowly. This makes them easy to catch. They stay in the trees to _______ themselves from bigger animals.”

“So how slow is it?” Jack asked. Alex told Jack to _______ where the sloth was. And then Jack saw that it was _______ a branch (树枝).

Then Jack went to lunch. He ran quickly and couldn’t wait to see the sloth after lunch and expected to see the _______. It only moved past the branch! Jack was _______.

“See, said Alex.” We can _______ how fast it moves. A sloth on the ground can only move 6-8 feet per minute. In a tree, a sloth can move ________. It can move 15 feet.”

A long time ago, floods (洪水) often happened. The flood buried (掩埋) the lands and broke the houses. People felt that they were living in danger every day.

The flood really hurt a lot of people, so people began to think about how to solve this problem. At that time, a man named Gun led people to control the flood. All he did was to build the dam (坝) to keep the water out of villages.

Nine years later, there were still floods. His son Yu went on controlling the flood. In order to control the flood, Yu didn’t return home for thirteen years. In the past thirteen years, he ran everywhere, passing by his home three times. But he never walked into it to have a look. In his opinion, nothing was more important than what he was doing.

Yu learned from the experience of Gun’s and came up with a better way to control the flood. Together with many people, he dredged (疏浚) many rivers. So the flood could pass through the rivers and then go into the sea. The flood finally died down and people moved their homes back.

Maybeth Hearn, from the USA, was a 10-year old girl. She asked her parents if she could train a dog to become a guide dog. She didn’t know that it would turn into a lifelong mission（终身使命）for her.

When young Hearn started training her dog, she met some problems. Her mother didn’t like dogs and her father told her the training would need a lot of money. But Hearn didn’t give up. Through hard work, on a sunny summer day in 1962, Hearn took a black dog home and began training it. In more than 50 years, Hearn trained 56 dogs on her own.

But Hearn, who was a high school teacher, did more than that. She inspired（鼓舞）her students to train more dogs. Since 1992, her students have trained 170 dogs.

“Can you imagine a classroom with 30 kids and 21 dogs that are less than one year old?” Hearn Said.

The dogs then move to certified（持有证书的）trainers who work for Guide Dogs for the Blind. After being trained for some time, they finally become real guide dogs. Guide Dogs for the Blind thinks highly of Hearn’s and her students’ work.

Hearn’s work not only helps blind people, but also teaches her students the importance of giving back to society（社会）.

The Pacific Ocean is the largest of the world’s four oceans. The Coral Sea (珊瑚海) is in the Pacific Ocean and is home to one of nature’s greatest wonders, the Great Barrier Reef (大堡礁). And the reef is now in danger.

It is the world’s largest coral reef system (系统). That is made up of almost 3, 000 different corals. The reef is home to 400 kinds of coral animals and over 2, 000kinds of fish. Much of the life in the ocean calls the reef home.

However global warming (全球变暖) is causing a worse condition in the Great Barrier Reef. Rising ocean temperatures cause coral to run out of the algae (海藻). The algae not only live in it, but also are the main food for the coral. Without it, the coral is still alive but is slowly becoming dead.

As even humans depend on coral reef systems for food, the death of the world’s largest coral reef system would be bad for the planet. Scientists hope they can help stop the global warming and protect nature’s wonders like coral reefs.

When the world fought against the COVID-19, many museums took action to remember life under lockdown (封锁): “When we knew there was going to be a lockdown, we talked about what we could collect for the future, ”said Beatrice Behlen. The Museum of London then began a plan which asks Londoners to give it things that could show their life during the COVD-19. It could be something about a new skill they have learned, such as cooking or making masks for medical workers.

What about people’s feelings, such as sadness, fear, hope and love during the lockdowm? How could they be collected? The Museum of Home, also in London, got an idea. It was asking people to send it videos. One family had recorded how they set up a screen in front of their table so they could share a meal with other family members through the Internet.

In Sweden, the Nordiska Museet, the country’s largest museum of cultural history, was collecting information about how children’ daily life had changed and how they thought about the future. In Austria, photos of a birthday party in lockdown were being collected by Vienna’s Wien Museum.

81. 2022年4月16号9时56分，神舟十三号载人飞船成功着陆，11时05分，翟志刚，王亚平，叶光富三名航天员安全出舱。请根据以下提示和要求，写一篇英语短文。

要点：

1. 听到这则消息时，你和你周围的人当时正在做什么，什么心情；

2. 航天员们英勇的精神激励着我们每一个人，你对今后的自己有什么决心和规划。

要求：

1. 语句通顺，意思连贯，书写工整；

2. 词数：不少于80词。(开头已给出，不计入总词数)

提示词：神舟十三号载人飞船：Shenzhou-XIII Manned Spaceship；出舱：come out of the capsule