1 . The Internet’s carbon footprint is as bad as air travel. While it is difficult to measure precisely, estimates place it at over two percent of global greenhouse gas emissions(排放)—the same as the air travel.
Information may appear to spread around the world unseen to our eyes, but it actually passes through enormous data centers placed strategically about the globe, which store, organize and deliver everyone’s data. These centers are extremely energy intensive. In the EU, they consume close to three percent of its total energy usage and also require lots of water to prevent their computers from overheating. In the US, about a fifth of data centers draw water from already stressed water sources.
A typical spam email(垃圾邮件)emits around 0.03g of CO2 emissions, though longer messages read on a laptop can go all the way up to 26g. Now multiply that by 333 billion(roughly the number of emails that get sent every day in 2022). That puts all those work emails into perspective. One study found if every British adult sent one less “thank you” email a day, it would save 16, 433 tons of carbon a year. It even predicted that the ICT industry could account for up to a fifth of the world’s energy consumption by 2025.
However, there are measures that we can take to reduce our digital carbon footprint. For instance, you can unsubscribe from marketing and other spam emails and only subscribe to newsletters that you still regularly read. Have regular data checks where you delete old contact lists and other documents that no longer have any use. Keep a clean inbox and delete emails you no longer need.
1. Why does the author make a comparison in the beginning?| A．To present the digital carbon footprint. |
| B．To emphasize the importance of air travel. |
| C．To advise people not to travel by airplane. |
| D．To inform the disadvantages of the Internet. |
| A．It enjoys a wide popularity. |
| B．It has various kinds of functions. |
| C．It causes large energy consumption. |
| D．It has quite a complex mode of operation. |
| A．To draw the readers’ attention. |
| B．To illustrate a certain information. |
| C．To highlight the change of CO2 emission. |
| D．To stress the importance of reducing CO2 emission. |
| A．Neutral. | B．Optimistic. |
| C．Unfavorable. | D．Concerned. |
2 . No matter how many times Sandy has rescued an animal, she never gets over the casual cruelty some people display toward unwanted pets. When she lost her own “angel” dog, she started Logan’s Legacy to help other pets in need.
Sandy recently received a phone call about a small dog, possibly a puppy, that had been abandoned on a street. Since she was too far to help on, she called a friend who lives nearby to get there as soon as possible. When her friend Tom arrived, he found a tiny dog curled(蜷缩)in a tight ball with the chain firmly tied to a tree. Someone had left food and water for her, but the puppy was too frightened to eat or drink. Once gathered up in a blanket and placed into the back seat of the car, she began to get weak quickly from dehydration(脱水)and exhaustion.
The moment she got some water and food, the puppy made a rapid recovery, and her lovely and sweet personality could finally shine! “We have named her CiCi,” Sandy added, “She is feeling so much better. She has been observed at my place and she is doing great. This sweet baby girl will never feel fearful again, and won’t ever be abandoned again.” After winning hearts at Sandy’s office, CiCi has been approved for adopting and will soon leave for her new life. Sandy and her fellow rescuers are trying their best to find her the perfect family to love her and treat her with the respect all living creatures deserve!
1. What did Sandy feel it hard to overcome?| A．The casual humanity. | B．The cruelty of humanity. |
| C．The kind human nature. | D．The weakness of kindness. |
| A．She suffered a serious illness. |
| B．She had nothing to eat or drink. |
| C．She got lost far away from home. |
| D．She was scared and in poor health. |
| A．She will stop taking medicine. |
| B．She will continue further treatment. |
| C．She will have a perfect match for home. |
| D．She will get on well with Sandy forever. |
| A．A Warm Home for CiCi |
| B．Dog Saved Heart Fulfilled |
| C．A Terrible Experience of CiCi |
| D．Saving Dogs Saving Themselves |
3 . Imagine being able to pop to your local park and pick some tomatoes, potatoes or even bananas to take home for dinner. Sounds too good to be true, right? For residents (居民) of Andernach, German, it’s not just a dream — it’s their reality.
In 2010, Andernach began its edible (可食用的) city project that hadn’t been carried out before, planting 101 varieties of tomatoes in public green spaces around the city center. Its 30,000 residents are free to help themselves to whatever grows, as are any other visitors. The town’s motto of sorts is “Picking is encouraged — help yourself!” Every year a new type of plant is highlighted. In 2011, 100 types of beans were planted, while 2012 saw the introduction of 20 onion varieties. And it has become the phenomenon of the city.
It’s a community effort, as local citizens are encouraged to help plant and maintain the gardens. This offers an opportunity to socialize as well as to learn about planting, cultivating and harvesting food.
An Andernach resident spoke to DW,“I often drop by to pick some herbs that I’m missing at home. Everything is easily accessible. There aren’t any fences. You just take what you need. The only thing is that you have to be quick once the fruits are ripe or they’ll all be gone!”
Andernach may have been the first in German, but it isn’t the only edible city. It’s part of the Edible Cities Network, a project funded by European Union to connect green urban foot initiatives (方案) around the world. Other cities include Carthage in Tunisia, Havana in Cuba and Sempeter-Vrtojba in Slovenia. In February 2022, the first Edible Cities Network Conference took place. Dr Ina Saumel, principal investigator of the Edible Cities Network, called it “a unique opportunity to invite researchers of edible city solutions and practitioners all together.”
Ultimately, the Edible Cities Network aims to give people “greener, more edible and, above all, more livable cities.” It is a response to the pressures of global climate change, and a significant cause full of hope.
1. What can residents do in public green spaces according to the edible city project?| A．Sell the produce they grow there. | B．Learn something about dealing with people and planting. |
| C．Cook whatever plant as they like. | D．Pay to pick some vegetables and fruits there. |
| A．Creative and popular. | B．Conventional and costly. |
| C．Common and fundamental. | D．Rare and unacceptable. |
| A．Andernach is the only city to carry it out. | B．European Union originally established it. |
| C．It helps combine theories with practices. | D．It invites people to share meals together. |
| A．To help residents relieve their pressure. | B．To involve residents in urban planting. |
| C．To increase the produce supply in cities. | D．To create environmentally friendly cities. |
| A．Their daily routine. | B．Their dormitory. | C．The weather. |
5 . The opening of California’s commercial crab season, which normally starts in November, is delayed once again to protect whales searching for their prey (猎物) along the coast.
California has been affected by a marine heat wave since May. The Blob, as this mass of warm water has become known, is squeezing cooler water preferred by whales and their prey close to shore, where fishermen set their traps. This crowding can lead to tangle (缠结) between whales and fishing equipment, endangering the animals’ lives and requiring rescue missions.
In a new study, scientists say they can now use global temperature models, commonly used in climate science, to predict up to a year in advance when hot ocean temperatures raise the risk of tangles between whales and fishing equipment.The tool analyzed in the new study, called the Habitat Compression Index, works by feeding sea-surface temperature measurements into an equation (方程式) that estimates the likelihood of whale habitat shrinking closer to shore.Regulators and fishermen agree that the new forecasting research could help them walk the tightrope between protecting whales and protecting local livelihoods (生计).
Mr Ogg, a commercial fishing boat captain, describes himself as a conservationist who doesn’t want to see whales harmed.“Fishermen have a big motivation to protect the natural environment,” he said, “because that’s where they make their living.” Previously, the challenge was adapting to changing conditions and fishing regulations on short notice, especially for smaller business owners and their crews.“One of the biggest problems we had was the unpredictability,” Mr Ogg said, “We were living from week to week then.”
Though scientists have shown the Habitat Compression Index can now forecast months in advance, state officials would probably wait to see conditions in real time before making decisions about the crab fishery, said Ryan Bartling, an environmental scientist at the California Department of Fish and Wildlife.
1. What do the whales come to shore for according to the first two paragraphs?| A．Safety. | B．Shelter. | C．Leisure. | D．Food. |
| A．To take a risk. | B．To join in an act. |
| C．To strike a balance. | D．To walk on a rope. |
| A．Supportive. | B．Indifferent. | C．Cautious. | D．Pessimistic. |
| A．How climate data gives whales room to swim |
| B．What causes the decrease in whale population |
| C．Why global temperature models are in great need |
| D．Whether to protect whales or the local livelihoods |
6 . In habitats across the planet, animals periodically drop everything to walk, fly or swim to a new place. Wildlife such as whales and geese learn migration paths by following their parents. Others, including small songbirds, gain the distance and direction of their migration within their genetic code. And some animals use a combination of genetics and culture to guide their migration.
Another group of migrators does not quite fit either model, and researchers have only recently started to figure out how they find their way. Take the Cory’s shearwater, an oceangoing sea bird that migrates over the Atlantic every year. The young do not migrate with their parents, so culture cannot explain their journeys. And the exact paths vary wildly from individual to individual, making genetics equally unlikely.
Cory’s shearwaters are long-lived, rarely producing young successfully before age nine. This leaves an opening for learning and practice to develop their migration patterns. Researchers call this the “exploration-refinement”, and until now it has been hypothetical (假设的) because of difficulties in tracking migratory animals’ movements.
But a team of researchers has done that by attaching small geolocators to more than 150 of the birds aged four to nine. They found that younger birds traveled longer distances, for longer periods, and had more diverse paths than older birds. “We finally have evidence of the ‘exploration-refinement’ for migratory birds,” says Letizia Campioni, who led the study. Younger Cory’s shearwaters are able to fly just as fast as the adults—but they do not, suggesting that the young do more exploring, which gradually fades as they mature and settle into a preferred course.
Although it may seem less efficient than other strategies, “exploration refinement could be beneficial to birds and other organisms in a rapidly changing world due to unpredictable man-made changes,” says Barbara Frei. “It might be safer to repeat a behavior that was recently successful than to rely on patterns that were perfected long ago but might no longer be safe.”
1. Why does the author mention different migration models in Paragraph 1?| A．To give an example. | B．To lead in the topic. |
| C．To make a comparison. | D．To support an idea. |
| A．The opening for learning and practice. |
| B．The unique living habit of Cory’s shearwaters. |
| C．The way Cory’s shearwaters form their migration patterns. |
| D．The process scientists track Cory’s shearwaters’ movements. |
| A．They lower the speed for exploration. | B．They move in a predictable manner. |
| C．They travel as much as adult birds. | D．They look for a course with their parents. |
| A．Fixed Tracks: Safer Migration Model |
| B．Migration Models: Important Ways to Deal With Changes |
| C．A Combination of Strategies: A Wise Choice for Migration |
| D．Exploration Refinement: Migration Model With Better Adaptability |
7 . In mainland Britain, people who has ever attempted to grow berries or nuts — or indeed feed the bird — will know, doing so is identical to an opening move in a game of chess with local grey squirrels, a game the squirrels tend to win. Grey squirrels are also fond of the occasional bird’s eggs or the young birds, and enjoy tearing and eating the bark of young broadleaf trees, which can either kill the trees or leave them open to infection. This, apart from affecting biodiversity and the landscape, harms the wood industry. The loss — in damaged timber, lost carbon revenue and tree replacements — is not insignificant: £37 a year in England and Wales.
Grey squirrels (Sciurus carolinensis), introduced from North America in 1876, have nearly replaced the native red squirrels (Sciurus vulgaris) in Britain by outcompeting them for food and habitat. They are larger, and stronger, and resistant to squirrel pox virus, while reds are not. About 3 million now live in the UK; the International Union for Conservation of Nature lists the grey squirrel among the top 100 most harmful invasive species in the world.
In Britain, significant efforts have been made to stop grey squirrels’ progress, including trapping, shooting, and releasing pine martens into their habitats. The latest move, a workable system for which was thought to be a decade away, is forbidding the breeding of grey squirrels. However, legal challenges brought so many delays that the invasive grey squirrels. population expanded to an unmanageable level and wiping out was abandoned. The main issue in Britain was thought to be more technological than legal — designing a drug that targets only grey squirrels to prevent them breeding. Another possibility in the years ahead is to use DNA editing to ensure grey females are born unable to give birth.
Obviously, there is a hint of xenophobia (仇外) in some discussions about the introduction of grey squirrels to Britain nearly 150 years ago which has had an impact on the local ecosystem, posing a threat to native species. It’s also worth noting that reds — which also tear bark and take eggs — were seen as pests until the early 1930s, and extensively killed. There is, too, a strong argument that ecosystems evolve naturally, and it may be impractical and unrealistic to intervenes or even resist it. The attraction of controlling the breeding of the grey squirrels is that it is less inhumane, and aims for balance rather than uprooting.
1. What does the author focus on in paragraph one?| A．The harm of grey squirrels. |
| B．The cutting habits of grey squirrels. |
| C．The effect of grey squirrels on the wood industry. |
| D．The game between the British and grey squirrels. |
| A．Their huge number. | B．Their unique origins. |
| C．Their breeding ability. | D．Their physical qualities. |
| A．To offer more labour. | B．To invest more money. |
| C．To perfect the law. | D．To take advantage of technology. |
| A．Unclear. | B．Indifferent. | C．Favorable. | D．Doubtful. |
In the grip of a cold wave, with temperatures plummeting below minus 10 degrees Celsius, the plateau county of Jishishan in Northwest China’s Gansu province was jolted from its slumber midnight Monday by a 6.2-mngnitude earthquake, causing death,
According to a local villager Ding Xiaolong, he was asleep at home when the quake struck. He felt
“I received a call from him after the quake, asking me to check on the situation of his family,” Ding said, adding that he rushed to their house, only to discover that it
As of 10 am Tuesday, a total of 105 were confirmed
Members of the Gansu branch of the Blue Sky Rescue Team,
In Dahejia township,
One spring, I was hired as groundskeeper at a Country Inn, a famous bed-and-breakfast located in Washington state. The grand house is in a beautiful place. Many famous people have visited and even had their own rooms there. The owners, Philip and Cecelia, have done a perfect job for the house. However, the gardens were very overgrown. Worse yet, there was another problem: a very persistent doe (母鹿).
Every day when I came to work, there was new evidence of the deer’s big appetite. I tried many preventives: spray, human hair, soap, you name it-but none of those things had effect. Often when I was weeding, I’d look over and there she’d be, munching some tasty pieces. Worst of all, she feasted on the roses, in which Cecelia took great pride. I became so frustrated that I named her “Dinner”— and wanted to serve her on plates.
One morning, I was on my hands and knees pulling out vines and bushes when I caught a movement out of the corner of my eye. There was Dinner, not five feet away, munching a large leaf and staring at me. I felt a connection with this animal. We did have something in common-we were both mothers. I got the crazy idea of communicating with her and it seemed she wanted the same thing.
What’s up? I asked in my head.
I’m here because I feel safe, was the gentle reply I felt I heard. I have my fawns (幼鹿) bedded down nearby, and there is plenty to eat. When the twins are older after summer, I will move them deeper into the forest.
I understand that, I assured her. People come here too, from far away. I guess they’ll be interested to see you. I promise that nobody will harm you or your children. I don’t mind sharing the vegetation but Cecelia loves roses, too. She is very upset when they are all eaten.
A loud crash broke the magic. Our eyes met again briefly before she leaped off across the driveway, disappearing into the forest. Has I really communicated with the deer?
Paragraph1.
I went into the kitchen where Cecelia was preparing the evening meal.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Paragraph2.
Every day, I enjoyed watching Dinner with the twins and my presence never bothered them.
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10 . Flash droughts (突发性干旱) develop fast, and when they hit at the wrong time, they can ruin a region’s agriculture. They are also becoming increasingly common as the planet warms. In a study published in the journal Communication Earth &Environment, we found that the risk of flash droughts, which can develop in a few weeks, is on pace to rise in every major agricultural region around the world in the coming decades.
In North America and Europe, cropland that had a 32% annual chance of a flash drought a few years ago could have a greater chance of a flash drought by the final decades of this century. That result would put food production, energy, and water supplies under increasing pressure. The cost of ravage will also rise. A flash drought in the Dakotas and Montana in 2017 caused $2.6 billion in agricultural damage in America alone.
All droughts begin when rainfall stops. What’s interesting about flash droughts is how fast they reinforce themselves, with some help from the warming climate. When the weather is hot and dry, soil loses water rapidly. Dry air extracts moisture from the land, and rising temperature can increase this evaporative demand. The lack of rain during a flash drought can further contribute to the feedback processes. Under these conditions, crops and vegetation begin to die much more quickly than they do during typical long-term droughts.
In our study, we used climate models and data from the past 170 years to assess the drought risks ahead under three conditions for how quickly the world takes action to slow the pace of global warming. If greenhouse gas emissions (排放物) from vehicles, power plants, and other human sources continue at a high rate, we found that cropland in much of North America and Europe would have a 53% annual chance of flash droughts, respectively, by the final decades of this century. Globally, the largest projected increases in flash droughts would be in Europe and the Amazon. Slowing emissions can reduce the risk significantly, but we found flash droughts would still increase by about 6% worldwide under low-emission conditions.
1. Why is the flash drought a concern?| A．It often develops and strikes unexpectedly. | B．It does go hand in hand with rainfall. |
| C．It can be destructive to regional agriculture. | D．Its chance has increased dramatically. |
| A．Control. | B．Assessment. | C．Production. | D．Damage. |
| A．The constant rainfall. | B．The increasing food demand. |
| C．The warming planet. | D．The fast pace of modern life. |
| A．To cut down on carbon footprint. | B．To evaluate the risks regularly. |
| C．To study climate models and data. | D．To monitor weather condition. |
