1 . Vast lands of America are dominated by corn, nearly 100macres of it, stretching from Ohio to the Dakotas. What once was forest today produces the corn that feeds people, cattle and, when made into ethanol (乙醇), cars.
Now, the nation’s airlines want to power their planes with corn, too. United Airlines signed a deal with a Nebraska ethanol company to buy enough sustainable fuel, to power 50,000 flights a year. The government could decide on its tax incentives (税收激励) for the industry as soon as December. “Mark my words, the next 20 years, corn farmers are going to provide 95% of all the sustainable airline fuel,” President Biden said in July.
The airlines’ ambitious goal would likely require nearly doubling ethanol production, which airlines say, with great expectation, would decrease their greenhouse gas emissions. If they succeed, it could transform America’s Corn Belt, stimulating farmers and ethanol producers, but potentially further damaging one of the nation’s most important resources: groundwater.
Corn requires a lot of water to grow and it can take hundreds of gallons to produce a single gallon of ethanol. But as airlines take the idea of ethanol, the vital groundwater faces serious risks. “We’re on track to massively increase water usage without any real sense of how sensitive our groundwater is,” said Jeffrey Broberg, who is concerned about groundwater in Minnesota, a major corn state.
The Department of Energy said in a statement that “water use is a critical part of the conversation surrounding bio-energy sustainability”. It pointed to a 2022 department study that concluded that the United States could significantly reduce pressure on groundwater by shifting fuel production away from water-intensive crops like corn, instead growing more crops that don’t require irrigation (灌溉), like various types of straw, grasses and trees. Hopefully, a better approach will be soon studied and adopted.
1. What can we learn from the first two paragraphs?| A．Farmers will increase 95% of their ethanol production. |
| B．The sustainable fuel will not be popular in the future. |
| C．Corn will be an influential source in the fuel industry. |
| D．The government stops the new fuel for the groundwater. |
| A．Preventing. | B．Motivating. | C．Destroying. | D．Impressing. |
| A．The shortage of corn production. |
| B．The increase in global warming. |
| C．A rise in clean-energy tax credits. |
| D．Higher stress on the groundwater. |
| A．Expand the corn planting area. |
| B．Use some alternative materials. |
| C．Cut down the daily water usage. |
| D．Turn to the government for help. |
I was eight years old and wasn’t aware of all the arrangements being made for our journey as a family to London in 1950. My mother was in great pain and wished to visit specialists in London. My father reluctantly had to sell our property in Queensland. The day before we boarded the ship, Father unwillingly said goodbye to his five-year-old cattle dog, Spider, who was loved by us all. Father’s friend Sandy was to be his guardian while we were overseas, as he had been getting to know Spider for many weeks.
Six weeks later, an airletter arrived from Sandy, giving my father the news that Spider had run away just two weeks after we had sailed. Sandy had advertised constantly on ABC and other regional newspapers. Despite many “sightings”, the dog was never found. It seems Spider just kept running and searching for us. As he was cattle dog, my father thought he would shoe or dingo-trapped, because of his appearance. But our family thought that Father held a secrets hope that Spider was still alive.
We sailed back to Australia two years later and re-established our home. My father immediately began his own search for Spider. One cold winter’s Saturday morning eight months after our return, my father had a call from an elderly lady living on her own on the outskirts of the town. As she told my father on the telephone, it was “just glimpses of a dingo-type dog in the shadows” of her disused tennis court. That was enough for my father to interrupt my homework.
We set off in his blue and black Jensen car which he had brought back from England. It was hardly the right vehicle for the rough roads we travelled that day. Five and a half hours later, we found the run-down old property. Sadly, she told my father that the “dingo dog” hadn’t been around for a few days. My father had a strange look in his eye. He put two fingers to his lips and did his special whistle for Spider.
注意：1. 续写词数应为150个左右；
2. 请按如下格式在答题卡的相应位置作答。
Suddenly there was a sound in the bush.
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Once home we had the task of getting all the prickles (刺) off him.
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Meagan and her close friend Samantha, both school teachers, lived together in an apartment in Denver. On mornings when Samantha had class, Meagan would help to watch her 2-year-old daughter, Hannah. Also part of the household was Meagan’s pet, Willie, a particularly intelligent and chatty parrot.
Willie was indeed funny and a good talker. In addition to some vocabulary learned from Meagan, he became a great mimic (会模仿的动物) of cats, dogs, and chickens. Plus, he could sing along to the radio. The bird was a nice playmate for the little girl, and he always knew how to lift her spirits. The bird was more than just a pet; he was a member of the family.
One day, with Samantha at school, Hannah had comfortably positioned herself in front of morning cartoons while Meagan was busy cooking in the kitchen, preparing the little girl her favorite breakfast treat, an apple pie. When Meagan was done baking the apple pie, she placed it at the center of the kitchen table to cool. She looked at Hannah and, confident the child was fully engaged with the TV, walked out of the kitchen quickly to use the bathroom.
Meagan was gone maybe 30 seconds. And suddenly, she heard the bird going crazy, screaming loudly. She heard two very distinct words from the parrot’s mouth. “Mama! Baby!” Repeated over and over again. “Mama! Baby! Mama! Baby!”
Meagan ran out of the bathroom to find Hannah in the kitchen, holding the partly eaten apple pie, fighting for breath, her face and lips a terrifying shade of blue. And Willie was still screaming loudly.Hannah had climbed up on a chair, gotten the apple pie from the kitchen table and was clearly choking on it.
注意: 1.续写词数应为150左右；2.请按如下格式在相应位置作答。
With a pounding heart, Meagan grabbed Hannah immediately.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Around lunchtime, Samantha came back from school.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4 . Flash droughts develop fast, and when they hit at the wrong time, they can ruin a region’s agriculture. They’re also becoming increasingly common as the planet warms. In a study published in the journal Communications Earth& Environment, we found that the risk of flash droughts, which can develop in just a few weeks, is on the 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 change will also rise. A flash drought in the Dakotas and Montana 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 strengthen themselves, with some help from the warming climate. When the weather is hot and dry, soil loses moisture rapidly. Dry air extracts moisture from the land, and rising temperatures can increase this evaporative (蒸发的) 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 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, by the final decades of this century. Globally, the largest 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. What is the feature of flash droughts?| A．Seldom happen and greatly beneficial. | B．Frequently happen and low risky. |
| C．Suddenly happen and highly destructive. | D．Regularly happen and slightly harmful. |
| A．Crops and vegetation die more quickly during long term droughts. |
| B．Slowing emissions can completely solve the problem of flash droughts. |
| C．In Europe cropland will suffer from more flash droughts by the end of this century. |
| D．Flash droughts won’t have any effect on food production, energy, and water supplies. |
| A．Adequate rainfall. | B．The warming climate. |
| C．The cold and wet weather. | D．Long-term droughts. |
| A．By studying climate models. | B．By speeding up global warming. |
| C．By changing cropland into forests. | D．By decreasing greenhouse gas emissions. |
5 . Overuse of land and warming temperatures are putting insect diversity in danger in some parts of the world, scientists reported Wednesday.
The study, published in the journal Nature, confirmed for the first time a clear and alarming link between warming temperatures and large-scale agriculture and showed that where there are more farmlands, there is a greater decrease in insects.
“These findings lead to huge concerns,” said Charlotte Outhwaite, the lead author of the study and researcher at the University College London, adding that losing insects could threaten human health and food supply.
“Three quarters of our crops depend on insect pollinators(授粉),” Dave Goulson, a professor of biology at the University of Sussex in the UK, previously told CNN. “Without insects, crops will die. We won’t have things like strawberries. We can’t feed 8 billion people.”
Outhwaite said their findings “may only show the tip of the iceberg(冰山一角),"because of the limited amount of evidence in some areas. “But I think there are also a lot of results that we probably don’t really know because there are so many different kinds of insects.” Outhwaite told CNN.
Scientists say, overuse of land has a link with warming temperatures. Destroying natural habitats for agriculture can make the temperature rise sharply. Researchers found great decreases in insect populations in areas of the world that are much warmer. They concluded that in areas with small-scale agriculture, less temperature warming, and more natural habitats, insects only dropped by 7%, compared to the 63% decrease in areas with large-scale agriculture, more temperature warming and less natural habitats. So what can we do to help prevent this?
1. What did the study find?| A．More farmlands lead to a greater decrease in insects. |
| B．Three quarters of our crops depend on insect pollinators. |
| C．Overuse of land is threatening insect diversity all over the world. |
| D．There is little link between warming temperatures and large-scale agriculture. |
| A．To suggest solutions to people’s concerns. | B．To explain the process of insect pollinators. |
| C．To prove the importance of insects to humans. | D．To provide evidence for the decrease in insects. |
| A．Insect pollinators | B．Overuse of land |
| C．Warming temperatures | D．Less natural habitats |
| A．His opinions of the study. | B．Studies of natural habitat. |
| C．The ways to stop the decrease. | D．The causes of warming temperatures. |
6 . A team of scientists is studying the sound of the forest in Ecuador to learn how artificial intelligence (AI) could follow animal life in recovering environments.
When scientists want to measure new forest growth, they can study large areas of land with tools like satellites. But understanding how fast and in what number wildlife is returning to an area is more difficult. Sometimes it requires an expert to listen through sound recordings and pick out animal calls.
Jorg Muller, an expert on birds, wondered if there was a different way. So, he turned to bioacoustics (生物声学), which uses sound to learn more about animal life and their living environments. Muller and his team recorded wildlife sounds in Ecuador. They first had experts listen to the recordings and list the sounds of different animals. Then, they examined the sound quality to measure the environment. Finally, they ran two weeks of recordings through an AI computer program trained to understand 75 different bird calls.
The program was able to pick out the calls on which it was trained. However, scientists wondered if the program could correctly identify the number of different kinds of plants and animals in each environment. To see if the program could do that, the team used two different controls. One was from the experts who listened to the recordings, and the second was based on examples from each environment, which can be used to understand biodiversity (生物多样性).
Since the number of sounds that are found to be used to train is limited, the AI program could only identify one-fourth of the bird calls experts could. But it was still able to correctly measure biodiversity levels in each environment, the study said. It also said the results show the AI program is a powerful tool to measure the recovery of animal societies in some forests. The study showed that biodiversity found from recordings can be measured in a cost-effective and complete way and measure environments.
There are still areas for improvement, including the lack of animal sounds on which to train AI models. And the method can only catch animals that use sound to communicate.
1. What does the study focus on?| A．Studying plant growth. | B．Observing birds’ behavior. |
| C．Understanding AI’s effect on wildlife. | D．Measuring wildlife recovery. |
| A．Bioacoustics. | B．Satellite recording. |
| C．Sound recording by AI. | D．Direct observation by experts. |
| A．Identifying plant species. | B．Tracking weather change. |
| C．Measuring biodiversity levels. | D．Identifying all the bird calls. |
| A．Measuring more bird environments. |
| B．Catching animals that use sound to communicate. |
| C．Training the program on a wider variety of sounds. |
| D．Having experts study more and understand bird calls. |
7 . The Chinese people have developed the habit of ordering more dishes than they can eat when inviting guests for dinner in a restaurant, because if all the plates are empty at the end of the dinner, it would be considered a matter of shame to the host. Surveys show that as much as 35 million tons of food is wasted in China every year.
To solve this problem, the “Clean Your Plate” campaign was launched in 2013 and got a positive response from restaurant owners, the public, and governments at different levels. More and more waiters are now reminding diners to stop ordering more if they have ordered enough to make them full. Also, most restaurant owners nowadays provide free boxes with which the diners can carry the leftovers (剩菜) home.
The “Clean Your Plate” campaign has become popular along with the “save water” and “go green” activities. However, since it takes generations for people to change their bad habits, it’s too early to celebrate its success. Instead, more attention should be paid to preventing food waste at home.
Almost every Chinese family has a “waste bin”. Unfortunately, I happen to be the “waste bin” of my family. I used to enjoy eating leftovers until I heard an expert on TV saying that it causes cancer. Many doctors say the same thing. But later, I saw other experts doing experiments and concluding that food cooked hours ago or even a day ago shows no obvious increase in carcinogenic particles(致癌颗粒) if stored properly. Their disagreement has left me confused. I have no idea who is right, but I am clear that if all the leftovers are thrown away as suggested by some experts, it would be a big waste of food.
1. Why was the “Clean Your Plate” campaign launched?| A．To invite guests for dinner. | B．To save people’s face. |
| C．To reduce food waste. | D．To stop unbalanced diet. |
| A．Waiters are reminded to stop ordering more. |
| B．Free boxes are provided by most restaurant owners. |
| C．People are eager to change their bad habits earlier. |
| D．People pay more attention to preventing food waste at home. |
| A．Eating leftovers causes cancer. |
| B．Leftovers should be thrown into the waste bin. |
| C．Throwing all the leftovers would be a big waste of food. |
| D．Properly stored leftovers won’t cause damage to health. |
| A．An introduction to a campaign. | B．The ways to deal with leftovers. |
| C．An explanation of food waste. | D．The eating habits of Chinese. |
8 . For Cruz, who grew up in Peru’s mountainous region of Cuzco, fog represents a massive opportunity. As a boy, he had to hike for more than an hour every day across hills to collect water from the nearest source. But over time, he realized that during the rainy season, droplets of water would gather in the large leaves of banana trees. So one day he and his father tried to build a canal system with the leaves to collect water and it turned out a success. But afterwards, he moved to Lima at the age of 25.
There, shocked by the water shortages and expensive water supply that some of the city’s poorest residents were faced with, Cruz set up El Movimiento Peruanos sin Agua in 2005. The idea was to deploy the method he learned in his hometown on a larger scale, which would provide free, independently sourced and easily accessible water to those who needed it most. He began installing (安装) a traditional fog catcher model developed in the 1980s.
At the highest point of Los Tres Miradores, there is a curious set of large structures that resemble a fleet of ships in the sky. They are so-called “fog catchers”. Netted devices, made of high density Raschel polyethylene and spanning several meters wide, are lined up at the top of a misty mound and linked by a network of tubes that lead to storage containers. The 40 fog catchers there provide enough water for 180 families, whether to bathe, clean, drink or to irrigate crops on small garden patches.
Supporters believe that fog catchers have the potential to improve water supply for communities around the world among the ever-challenging circumstances. German researcher Lummerich says, “They are cheap, easy to construct.” In a world searching for water supply systems, it is one important puzzle piece that can make an essential difference locally.
However, there are some issues. For one, fog catchers require space, which is not always easy to come by in cities, let alone urban slums. At the same time, fog catchers must be properly cleaned and maintained to stay effective. Most crucially, appropriate climate conditions are required. Fog isn’t everywhere.
1. What does the underlined word “deploy” probably mean in paragraph 2?| A．Employ. | B．Adjust. | C．Design. | D．Study. |
| A．The reason why Cruz installed fog catchers. |
| B．The difficulties of constructing a canal system. |
| C．The installation and benefits of fog catchers. |
| D．The inspiration Cruz gained to build a canal system. |
| A．High costs. | B．Public opposition. |
| C．Space limitation. | D．Climate conditions. |
| A．Urban Areas: A Struggle for Sufficient Water |
| B．Innovative Water Collection Techniques in Peru |
| C．The Global Water Crisis and Possible Solutions |
| D．Fog Catchers: A Local Solution with Global Potential |
9 . Flooding was fairly usual for a Queensland summer. This time, however, there had been a lot of rain and flash flooding further north which
My younger brother was getting
Finally, we decided to
The
| A．fast | B．slowly | C．actually | D．eventually |
| A．excited | B．nervous | C．curious | D．disappointed |
| A．turn | B．lay | C．calm | D．break |
| A．hours | B．degree | C．meters | D．days |
| A．level | B．ground | C．speed | D．house |
| A．made | B．sold | C．covered | D．moved |
| A．swim | B．separate | C．leave | D．stay |
| A．reaching | B．flooding | C．entering | D．destroying |
| A．weekend | B．money | C．holiday | D．night |
| A．fallen | B．run | C．risen | D．washed |
| A．funniest | B．scariest | C．strangest | D．greatest |
| A．lies | B．operates | C．keeps | D．spreads |
| A．height | B．length | C．depth | D．width. |
| A．stood by | B．waved at | C．looked through | D．walked across |
| A．flood | B．building | C．view | D．sport |
10 . I always listen to my local public radio station while I’m driving. My focus often changes as I stare out at the road ahead. But I became fully attentive on a recent morning once I realized the entire newscast was dedicated to local wildlife.
There was something about the pack of some 30 to 50 javelinas (野猪) that ruined a golf course near Sedona, Arizona, followed by talk of the recent sighting of a jaguar (美洲虎), a species that ranged across Arizona and Sonora, Mexico, until construction of the border wall blocked the way. Finally, there was an update on Mexican wolf reintroduction efforts in New Mexico and Arizona. The results were mixed: Nine of the wolves had died or been killed recently.
As I sat in my car, listening to the news, I felt helpless, even mournful. What would it take for most of us to understand that the javelinas’ behavior on that heavily irrigated golf course in the desert was a sign that maybe the course shouldn’t be in the desert to begin with? The way I saw it, the javelinas weren’t invading (入侵) the site; they were reclaiming it. After all, the javelinas’ needs—for food and space—are more basic than a few privileged humans’ desire to play golf.
As for the Arizona Mexican wolf pup reintroduction effort that I heard about in the news, for the past 25 years, scientists have been working hard to restore the native wolf population, and yet are unable to remove its greatest threat. Today, almost 250 Mexican wolves are believed to be in the wild, and every year, humans illegally kill one out of ten. The wolf recovery effort is necessary, but it’s extremely difficult because we humans keep getting in the way.
I need to tackle my helplessness, because helplessness leads to no longer wanting to take care of what matters most. Therefore, I think that it must be a good sign that my local news now regularly covers the challenges of coexistence and possible solutions to our problems. That’s progress and fuels my hope.
1. What is the morning news about?| A．Dangers of local wildlife. |
| B．Efforts to reintroduce wildlife. |
| C．Issues of human-wildlife coexistence. |
| D．Distribution of wildlife around the world. |
| A．To meet basic needs. |
| B．To protect the desert. |
| C．To oppose golf playing. |
| D．To attack human beings. |
| A．They are bound to go extinct. |
| B．Humans threaten their survival. |
| C．Their number has greatly increased. |
| D．10% of them have been reintroduced. |
| A．Unclear. | B．Negative. |
| C．Optimistic. | D．Indifferent. |
