We live on the earth. We use the sea around us. What do we take from the ocean? And what do we give to it?

    We take fishes from the ocean—millions of kilograms of fish, every year, to feed millions of people. {#blank#}1{#/blank#}We take minerals (矿物) from the ocean. We can get salt by evaporating (蒸发) seawater. {#blank#}2{#/blank#}such as gold. {#blank#}3{#/blank#}Seaweed (海草) becomes food of many kinds—even candy and ice cream—as well as medicine. Believe it or not, fresh water is another gift from the sea. We can't drink ocean water. {#blank#}4{#/blank#}But ocean water becomes fresh water when the salts are removed. In the future, we will find ourselves depending more and more on fresh water from the sea.

    The sea gives us food, fertilizer, minerals, water and other gifts. What do we give the sea? We pollute the ocean all the time. {#blank#}5{#/blank#}Throwing waste into the ocean is killing off sea life. Yet as the world population grows, we may need the sea and its gifts more than ever.

    We are finally learning that if we destroy our sea, we might also destroy ourselves. Hopefully, it is not too late.

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Future astronauts could travel with emotional support robots

    To help astronauts of the future survive (幸免于) the mental (精神的) challenges that come with staying in space for quite a long time, space travelers‟ tasks could soon be accompanied(陪伴) by AI-powered, empathetic (有同理心的, 同感的) robotic helpers.

    Not only does space travel present astronauts with lots of physical stresses, spending months or years in such a physically demanding (要求高的) place with limited space and the same people can also raise many mental tests as well. According to MIT Technology Review, scientists are working to alleviate astronauts from some of the latter challenges by creating "an AI assistant that's able to feel human emotion and respond (做出反应) with empathy."

    While such a technology would prove itself useful by being able to predict the needs of the

crew members in space and "intervene (干预) if their mental health is in danger," it has the potential to be life-saving when humans choose to explore beyond Earth's gravitational field (引力场) and towards deep space.

    Though astronauts currently on the International Space Station have an intelligent robot to interact with called CIMON, it is short of proper emotional intelligence according to NASA CTO Tom Soderstrom. As a result, a team at the organization's Jet Propulsion Laboratory is working on a more complex (复杂的) emotional support companion that can control a spacecraft's functioning in addition to tracking the crew members‟ behaviours.

    Right now in the lab, an AI-equipped robot called Henry the Helper can be found walking around the grounds assisting visitors who appear confused or lost based on their facial expression. Two more emotionally intelligent robots are expected to be introduced later this year, one of which is said to be able to take part in conversations more complex than giving navigation(导航) assistance.

    The team's final goal is to make a companion named Fiona the Future a reality, an emotionally intelligent cross-platform system. Fiona, if all goes according to the JPL's plans, will help keep astronauts of the future stay mentally fit as they start their journeys to deep space.

The world itself is becoming much smaller by using modern traffic and modern communication means. Life today is 1 easier than it was hundreds of years ago, but it 2 new problems. One of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We 3 see it, smell it, drink it and even hear it. 

Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious 4 there were not so many people. When the land was used up or the river was dirty in a place, men moved to another place. But this is no longer true. Man is slowly polluting 5 whole world. 

Air pollution is still the most serious. It's bad to all living6 in the world, but there is not only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us7 angry more easily.

Many countries are making rules to fight pollution. They stop people from 8 coal in houses and factories in the city, and from blowing dirty smoke into the air. 

The pollution of SO₂ is now the most dangerous problem of air pollution. It 9 by heavy traffic. It is certain that if there are fewer people driving, there will be less air pollution. 

The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must be careful of the rise in population 10 the same time.

Hello，I'm Jack. This is1 family. These2 my grandparents. They are 80. Their hair（头发） is3 . This is my father Steve and this is my mother Mary. Look！4 is my mother's jacket？It's red. It's5 . This is my aunt（姑姑） Anna. She is my father's6 . This is my7 Dan. He is Anna's husband（丈夫）. They have8 children（孩子），Tom and Alice. 9 boy in blue is me. I'm in No. 6 Middle School. Alice10 in my school. She is in No. 9 Middle School. 

When people talk about sports, many think of basketball or swimming. Did you know that arm-wrestling (扳手腕) is also a popular sport around the world? Many countries have competitions (比赛) for the sport and lots of people are good at it. One of the 1 arm-wrestlers is a 54-year-old British grandfather.

Mark Waldon's journey in arm-wrestling began three years ago. He got sick and had to stay in bed 2 a long time. That was when he started watching this sport on the Internet and became really 3 in it. When he got better, he joined a club in his town and he felt welcome there.

Mark does exercise all 4 time, so he is quite fit. But a strong body is not enough 5 in arm-wrestling. At first, Mark lost every match. However, that didn't stop 6 . He worked hard and became much better after 7 for half a year.

In September 2022, Mark flew to France for a world competition and won fourth place in his group (组). In 2023, he 8 a European competition in Finland. This time, he got first place.

These days, Mark still 9 every day. He hopes to show people that everyone can make their dreams (梦想) 10 true through hard work, even when they are at the age of a grandpa.

Since September，many schools have more PE classes from three time a week to five or even more. This is in response to (响应) China's new standard(标准) on PE classes. The standard asks schools to make sure that 10 to 11 percent of all class time must be PE classes. 

The standard not only(不但) asks students to do easy exercise, but also(而且) asks schools to give students other popular sports to do. 

Ma Jiajun, 15, from Jilin, set a new world record(纪录) for "the most consecutive jump triples(连续三摇跳绳)" with 701 times. His teacher Chen Peng said that the school has always kept an eye on PE. With Ma as a role model now, students are more hardworking on not only jump rope(跳绳) but also other kinds of sports. 

"At first tai chi(太极)was only needed during break time to show Chinese traditional culture, but students fell in love with it, " said Guo Yunxiang from a middle school of Shan Dong. Grade 8 students all need to do it, and there is a tai chi competition every year for Grade 8 students. "Different from ball games, tai chi can make me relaxed and help me get ready for the next class. " said Guo. 

"I really enjoy hip-hop dance, " Ren Jianning, a high school student, said, "The class doesn't need any experiences, so anyone can learn it. "Every class they practice a part of the dance and in the next class put the parts together in to a whole dance. "Our shirts are all wet after class even on the coldest days of winter. " said Ren.