Topher White spends so much time walking in the forest and thinking about how quickly we’re losing it. The engineer is determined to stop global deforestation. Founder of the San Francisco-based non-profit Rainforest Connection, White has developed a small but clever strategy: using old cell phones to listen for the sound of destruction.
Forests are disappearing worldwide, and fast:an area about half the size of England is lost each year. The Amazon has lost close to one-fifth of its rainforest cover in the last four decades. Forest loss not only harms wildlife, including many species that live nowhere else, but it’s also a big contributor to the greenhouse gas emission(排放)that cause climate change.
”I didn’t know any of this when I started,“ says White, who began his journey in 2011, when he traveled to Indonesian Borneo to help decreasing gibbons(长臂猿).
Between 50 and 90 percent of the logging that happens in the world’s rainforests is illegal, according to White, yet detecting chainsaws(电锯)and other sounds related to that activity can be tough, because the air is already filled with the loud unpleasant mixture of sounds from nature. So he has developed a system in which he installs a cell phone that stays charged by solar cells, attaches an extra microphone, and listens. From there, the device can detect the sounds of chainsaws nearly a mile away.
Because it’s unfeasible to have people listening to the devices all the time, he added some “old-school data analysis”, so that the cell phone’s computers can distinguish a chainsaw’s sound from others in the forest. This way, his device can automatically detect logging activity and send a text alert to authorities who can determine if it’s illegal and then stop it.
White notes that he’s not alone in the fight: Many people and organizations are working tirelessly to stop forests from disappearing. For instance, local groups are particularly active in forest conservation efforts, White says.
So far, his monitoring devices have been used in Cameroon, Ecuador, Peru, and Brazil and will soon be used in Bolivia. It’s not just about listening for logging. The same technology that can pick out the buzz of a chainsaw can pick out the sounds of specific birds, which is why Whtie sees the forest recordings as a potential science tool. He’s urging biologists and ecologists to use his monitoring system anywhere, whether it’s a remote forest or a park in London. “The more we learn about these places,” he says, “the easier it’ll be to protect them.”
1. The second paragraph is mainly about .A.the measures to prevent forest loss |
B.the causes and effects of forest loss |
C.the areas that suffer great forest loss |
D.the urgency about reducing forest loss |
A.Impractical. | B.Unnecessary. | C.Possible. | D.Significant. |
A.our advanced technology | B.our strong teamwork spirit |
C.our good understanding of it | D.our environmental awareness |
A.Efforts should be taken to preserve nature |
B.Your old cell phone can help save the rainforest |
C.Old cell phones can be used for helping gibbons |
D.A creative way is being used to protect specific birds |
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【推荐1】During the 2020 Olympics in Tokyo, there was a lot of talk about the environmental efforts taken. Athletes slept on beds made from recycled cardboard. The medals were produced out of old appliances such as smartphones and laptops. Over 90% of Japanese cities, towns and villages participated in the two-year effort to collect recycled materials to produce 5000 medals. Eighty tons of small electrical devices were collected to make this project successful.
With the 2024 Olympics Games underway in Paris, new environmental efforts are coming into play. Observers will sit on chairs made of plastic recycled from local bins. This decision was made due to a lack of unused raw materials to make new seats, so the eco-construction firm Le Pave turned to make the seats out of waste. Around 11,000 seats will be made from recycled materials.
The plastic collection for Paris 2024 has been carried out in the region’s schools, and over five million coloured bottle caps have been recovered Moreover, 80% of the 100 tons of recycled plastic needed to make the seats come from the yellow bins collections. This is all part of the Paris 2024 “zero waste” strategy to limit single-use plastic usage and encourage a circular economy.
The Olympic Games organizers are planning to make the Paris 2024 Games the greenest Olympic Games yet. They seek to apply a carbon-neutral approach that will lessen the climate impact of the Games by predicting, avoiding, reducing and balancing emissions (排放) and encouraging others to get involved. The Summer Games have released 3.6 million tons of carbon emissions in previous years. The Paris 2024 Games has set a carbon budget of 1.5 million tons which includes the emissions from construction, transportation and operations of the Games.
These plans are ambitious but are achievable. If Paris 2024 successfully reduces emissions and promotes a circular economy, it might set the standard for future Olympic and Paralympic Games, despite where they are held.
1. What were the 2020 Olympics medals made from?A.Raw metal. | B.Reused plastic. |
C.Used electronic devices. | D.Recycled cardboard. |
A.To stop carbon emissions. |
B.To make seats for athletes. |
C.To restrict single-use plastic usage. |
D.To collect coloured bottle caps. |
A.Decrease of carbon emissions. |
B.Limitation to single-use plastics. |
C.Promotion of recycling in school. |
D.Encouragement of a circular economy. |
A.Uncaring. | B.Negative. | C.Unclear. | D.Favorable. |
【推荐2】There are more than 7 billion people on Earth. Imagine what will happen if each of us decides to do one thing — no matter how small — to protect wildlife every day. Even little actions can have a major influence when we all do something.
Raise an animal
From wild animals to wild places, there’s a choice for everyone.
Do some volunteer work
Speak up and join
Share your concern for wildlife protection with your family. Tell your friends how they can help. Ask everyone you know to do what they can to stop wildlife trafficking (非法交易).
Find new ways to use things you already own. If you can’t reuse them, recycle. The Minnesota Zoo encourages customers to recycle mobile phones to cut down a need for the mineral coltan (钶钽铁矿), which is mined from lowland gorillas’ living places.
A.Develop a habit of recycling |
B.Try to encourage others to do it |
C.Whether you’re into protecting natural living places or preventing wildlife trafficking |
D.If you don’t have money to give |
E.Get together with classmates to raise an animal from a wildlife organization |
F.Here are ways you can make a difference |
G.If you are busy with your work or studying |
Before ending up on a supermarket shelf, an avocado (牛油果) has produced 1.3 kilograms of carbon into the atmosphere. Its production alone uses 60 gallons of water. Despite this, the fruit will often be thrown away as household waste.
Household food waste is the result of mismanagement. If the food is better managed, much of the waste is avoidable. To reduce household food waste, a growing number of food sellers decide to remove date labeling, such as the “use by” or “best before” date, from some fresh food.
Past studies have confirmed the importance of date labelling. Almost 60% of western European consumers surveyed said they “always” check date labels while purchasing. But date labelling can cause problems. People’s failure to truly understand date labellling often leads to unreasonable decision making. Indeed, consumers commonly don’t accept eatable, but date-expired (过期的) food.
To get rid of date labelling is therefore a promising start. Without date labels, information that may affect consumers’ understanding of what is safe to eat is removed. Instead, consumers are encouraged to sense check fresh food items.
In the case of an avocado, the advice given to consumers is that when ripe (成熟的) it should have a “pleasant and slightly sweet smell” while the skin should be “dark green or brown”.
Information is also provided on how an avocado should look, taste, and feel when “overripe”. It is hoped that a better informed consumer will be less likely to blindly throw away food due to an expiration date.
1. What causes household food waste according to the passage?2. What do food sellers decide to do to reduce household food waste?
3. Why can date labelling cause problems?
4. How can consumers know what is safe to eat without date labels?
5. Apart from what is mentioned in the passage, what else can you do to reduce food waste in daily life? (In about 40 words)
【推荐1】The 2022 Future Science Prize, a privately funded science honor established by a group of famous scientists and entrepreneurs, called “China’s Nobel Prize,” was awarded on Sunday to three Chinese scholars for their outstanding achievement in basic scientific research, an exciting boost to encourage innovation in the country’s basic science.
The Life Science Award, the Physical Science Award, and the Mathematics and Computer Science Award of the 2022 Future Science Prize respectively went to Li Wenhui, Yang Xueming, and Mok Ngai-ming, with each of them winning $ 1 million, the award organizer announced.
Lin Chao, chairman of the scientific committee of the 2022 Future Science Prize, said the winners’ research has achieved great international influence. It is the spirit of exploration and continuous scientific research of these scientists that have broadened human beings’ cognitive boundaries in the macro and micro world, and set the direction for an uncertain future.
The Future Science Prize aims at recognizing scientific successes and innovations in China with long-term significance to the world. Chinese research fellows generally believe the selection of famous scientists will play a positive role in encouraging innovation in basic science in China and inspire scientific eagerness among young people.
Liu Dingzhen, a professor from the College of Life Sciences, Beijing Normal University, said that on Sunday that encouraging China’s basic science is of great significance, because basic science takes a long period of time to harvest achievements but it is one of the key factors for the country to resolve bottlenecks in technology, secure supply chains in global competition and achieve the goal of becoming a powerful nation in science and technology.
The prize committee, composed of 23 outstanding scientists, is at the core of the award selection. The award ceremony of the 2022 Future Science Prize is scheduled to be held in November.
Since 2016, 24 winners have been awarded the Future Science Prize, all of whom have been widely recognized both in scientific circles and in society.
1. What can we learn about the Future Science Prize from the text?A.It has a history of over a decade. |
B.It’s established by the government. |
C.It awards three scientists every year. |
D.It focuses on basic scientific research. |
A.It’s full of challenges. | B.It’s greatly influential. |
C.It needs huge improvement. | D.It should broaden its range. |
A.Setting the direction for an uncertain future. |
B.Inspiring scientific eagerness among young people. |
C.Recognizing scientific successes and innovations in time. |
D.Helping the nation take the lead in science and technology. |
A.Society. | B.Finance. | C.Entertainment. | D.Environment. |
【推荐2】A picture of 17-year-old Zhang Guimei has won great popularity on China’s social media. The young girl with black-rimmed glasses and two short braids (辫子) is smiling brightly into the camera. People are deeply touched by the fresh-faced girl in the picture, which is far different from Zhang’s now aged and weathered face people are familiar with, as it tells a story of a woman who has devoted her life to improving education and fighting poverty in the countryside.
Born in Northeast China’s Heilongjiang province in 1957, Zhang traveled to Yunnan when she was 17 and has been helping girls from poor areas get education for over 40 years. Zhang helped build the country’s first senior high school to offer free education for girls from poor families. The school provides free education to girls who would otherwise (否则) have had no chance to study after finishing their nine years of compulsory education (义务教育).
Though she had serious health problems, Zhang Guimei took morning classes with students for 12 years. She has also spent her free time visiting her students’ families over the years and most of her money were spent on students. Since the school opened in 2008, it has seen more than 1,800 students progress to universities and colleges.
On Feb 25, 2021 President Xi Jinping presented an award to Zhang Guimei to mark her accomplishments and contributions to education at the Great Hall of the People in Beijing (北京人民大会堂).
1. Why are people deeply moved by the photo?A.Because the girl’s appearance catches their eye. |
B.Because they are familiar with Zhang’s face. |
C.Because it reminds them of the admirable woman. |
D.Because it spreads wildly on China’s social media. |
A.Wealthy and independent. | B.Responsible and reliable . |
C.Devoted and famous. | D.Determined and selfless. |
A.A news report. | B.A biography. | C.A history book. | D.A storybook. |
【推荐3】A new report from the U.K. says that more than 1 in 5 teens there spend five hours or more per day on social media. And the heavier users of social media go to bed later and get poorer quality sleep. The new study was based on self-reported survey data from nearly 12,000 teenage participants in the U.K. Millennium Cohort Study.
Megan Moreno, a researcher at the University of Wisconsin-Madison, says that social media is too often described as either entirely good or bad, when the reality is more complicated for teens. "Social media may have its problems, but it is the way that they stay in touch with each other," she says.
Perhaps unsurprisingly, the study found a link between high social media usage and poor sleep patterns. Specifically, teens who report heavier social media use go to sleep later. And, the study authors note, late bedtimes are linked with poorer academic and mental health outcomes.
Holly Scott, a researcher at the University of Glasgow, isn't sounding the alarm. She says, "it's easy to look at the results of this and think, 'We should just get teenagers to spend less time on social media.' I think that's an understandable response, but what I really encourage people to do is look beyond that." She says people should pay attention to the "important emotional and cognitive and social factors" at play with when teenagers are using social media.
Scott emphasizes that the study is pointing to a correlation between social media and poor sleep, but not necessarily demonstrating cause and effect.
"Certainly some teens do say that they struggle to get off of social media at night — they might be worried about missing out on things, or affecting their friends by not answering messages — and they stay up late from that," she says. But, "maybe for some of those young people they have a naturally later body clock, and are passing their free time at night on social media until they're ready to fall asleep," she says.
1. What’s the purpose of the new study in the U.K.?A.To find the benefits of using social media. |
B.To know the effects of using social media. |
C.To know teenagers’ habits of using social media. |
D.To prove the growing popularity of social media. |
A.Critical. |
B.Positive. |
C.Objective. |
D.Confused. |
A.It’s interesting. |
B.It’s impossible. |
C.It’s beyond doubt. |
D.It lacks evidence. |
A.How to Sleep Well Tonight |
B.Social Media Is Wasting Our Time |
C.Teens May Be Losing Sleep Over Social Media |
D.Make Use of Social Media in an Effective Way |