【推荐1】If you find yourself feeling a little less cheerful than you were when days are going from summer to autumn, it’s not your imagination: there is a science-backed reason you feel unhappy easily in the cooler months.

“It’s real,” said Kathryn Roecklein. “The changes don’t always affect everyone in the same way,” she added. “But seasonal mood changes often include less energy, feeling less social, losing interest in favorite activities and changes in sleep — you may have trouble sleeping or want to sleep more than usual.”

There are a lot of reasons why our moods change with the season, but a big factor (因素) is ______. “The hours of day, which are shortest in winter and longest in summer, are the main reason.” Roecklein said. Sunsets are getting earlier and earlier when autumn begins, so it’s not surprising if you feel those mood changes around the same time.

We should remember that “winter blues” is not something we cannot overcome (克服). Here are a few things you can do. First, get yourself bathed in the sun. A walk outside in the sun in the morning will surely make you feel better. Secondly, eat healthily. Try more fruit, vegetables and drink plenty of water. Besides, make time for your friends. A good chat with your best friends makes your day.

【推荐3】Can plants talk? Modern research has found something amazing: they do communicate with each other.

It has been known for some time that plants use chemicals to communicate with each other. This happens when a plant gets attacked by insects. The plant gives out chemicals from the leaves that are being eaten. This is like a warning, or a call for help, “I’m being attacked!” When another plant gets the chemicals, it starts to give out its own, different chemicals. Some of these chemicals drive insects away. Others attract the wasps（黄蜂；蜜蜂）! The wasps kill the insects that are eating the plants. Scientists hope to learn more about this plant warning system, so that we can use it to grow more crops.

More surprisingly, plants also use sound to communicate. People can’t hear these sounds, but plants are making them. Some plants make noises with their roots. Corn and chili plants do this. Some trees make clicking noises when there is not enough water.

Most surprisingly of all, plants have an amazing system of communication that can link nearly every plant in a forest. Scientists call this system the “wood wide web”. The wood wide web is linked underground by fungi（真菌）. It links the roots of different plants to each other. It is in some ways similar to the Internet we use. Using the wood wide web, plants can share information and even food with each other. However, it may lead to bad effects. Plants may use it to steal food from each other, or spread chemicals to attack other plants. Perhaps one day scientists will learn how to create a firewall to help prevent these attacks within the wood wide web.

Scientists are learning more every day about the secret ways in which plants talk to each other. Maybe one day we will know enough about plant communication to be able to “talk” with them ourselves.

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【推荐2】Antarctica(南极洲) is known for being a vast land of ice and snow, a place too cold for most life. Despite (尽管) this, the continent is slowly starting to turn warm. According to the Guardian, the Antarctic has registered (登记) a new high temperature for the first time on record, prompting fears of climate instability(不稳定性) in the world’s iciest place.

On Feb 9, Brazilian researchers at Seymour Island reported a temperature of 20.75℃ on the icy continent of Antarctica. It was almost a full degree higher than the previous record of 19.8℃, taken on Signy Island in January 1982.

This record-breaking reading was taken at a monitoring (监测) station in the northern part of Antarctica. According to Brazilian soil scientist Carlos Schaefer, the temperature was documented during a 20-year-long research project. The focus of this project is to study the effect that climate change has on the permafrost (永久冻土) within the region. Permafrost is soil that stays frozen for at least two years. Although this is a first record high for Antarctica, Schaefer stressed that “We can’t use this to anticipate (预测) climatic changes in the future. It’s simply a signal that something different is happening in that area.”

But in fact, the last high temperature reading was in the 19℃ range. These higher temperatures can cause ice and glaciers (冰川) in Antarctic regions to melt. The Antarctic peninsula (半岛) —the long finger of land(狭长地带) that stretches towards Argentina（阿根廷）—is most dramatically affected. Scientists saw glaciers that have retreated by more than 100 meters in Discovery Bay where the snow melted in little more than a week, leaving dark exposed rock. This melted ice leads to a rise in sea levels that can threaten the safety of coastal areas. It’s believed to be behind an alarming decline of more than 50 percent in chinstrap penguin (帽带企鹅) colonies, which are dependent on sea ice.

Like American writer Ernest Hemingway once said, “The Earth is a fine place and worth fighting for.” We should do everything we can to help save our planet. Otherwise, it may become too hot for us to fix.

【推荐1】“Chinese brands (品牌) are much better now and they can make the best things in the world, but few people know about them,” said Xu Yajun, the maker of the popular short videos (抖音)—Made in China.

Xu, 30 years old, was born in Henan. At a young age, he moved to Guangdong with his parents. In 2016, Xu left his well-paid job. Then he started making videos about clothes. It was not a new thing for him. He worked in a clothes factory for four years after middle school.

In the beginning, he mainly talked about the quality (质量) of different Chinese clothes brands in his videos. Soon he found many people didn’t know about the stories behind these clothes brands. In late 2017, he traveled to Hangzhou to make a video of some clothes brands’ factories and workers. The video first appeared on the Internet in January 2018. It also became the first video of Made in China.

In the past three years, Xu has visited over 20 factories across China to make videos. With only three people in his team, they did their best to make good Chinese brands known. For example, after watching his video about snow shoes from a village in Henan, many foreigners came to the village to buy shoes.

“I hope our videos can help both Chinese brands and buyers. ” said Xu. If buyers know brands and quality better, they can know more clearly what is good and what is bad. “I believe people will know more about Chinese brands. ”

【推荐3】Do you believe in green living? Read the following blog (博客) and replies about a fun, easy and creative way to make your lifestyle greener.

Posted by Gina at 8:32 a.m. on 29th Oct. 2021 New uses for old clothing Nowadays, we’re more wasteful than ever-buying, using and throwing things away without thinking about the costs. We need to start living more responsibly-but how? One answer is to upcycle (再生利用). If you are like me, you might already make soil for gardening from food waste and use empty paper boxes as storage place. Did you know you can apply (雇佣) the same way to old clothing? You just need imagination! I started upcycling clothing. Making new things out of old clothes is the best way to mix my talent and my interest. Do you upcycle? If so, what new things have you made? If not, why not give it a try?

TerryB Posted at 9:08 a.m. on 29th Oct. 2021                                            Why don’t you give your old clothes to people in need? I even gave away the most expensive things. I don’t wear any more. So I can help the environment while giving something useful to people in need. Gina posted at 9:28 a.m. on 29th oct. 2021                                                Good points! I’m talking about only the oldest clothing in your room-the clothes that are too old to be worn by others. The same idea goes for food waste at restaurants and supermarkets. Before upcycling food that can still be eaten, for example, using it to make soil, we should give it to those in need.

Betty99 Posted at 10:18 a.m. on 29th Oct. 2021                                           I have made shopping bags out of T-shirts and dog toys out of socks. Upcycling clothing is a fun hobby, buy the most important thing is that it makes me feel like I’m living less wastefully.

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