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阅读理解-阅读单选(约350词) | 适中(0.65) |
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文章大意:本文是说明文。主要介绍了一项新的研究揭示微塑料和纳米塑料对人体健康的潜在影响。

1 . Plastic is everywhere, from the Arctic ice to vital organs in the human body. In fact, previous estimates suggest that the average person swallows a credit card-worth of microscopic plastic particles(颗粒) every week. But new research shows that this could actually be an understatement.

Microplastics are plastics smaller than 5 millimeters, found in industrial waste, beauty products, and formed during the degradation of larger plastic pieces. Over time, they break down into even smaller nanoplastics. These tiny particles can pass through our intestines and lungs into our bloodstreams, reaching vital organs like the heart and brain.

While the idea of eating plastic is unsettling in itself, the major concern here is that these plastic particles contain chemicals that can interrupt our body’s natural release of hormones, potentially increasing our risk of reproductive disorders and certain cancers. They can also carry toxins(毒素) on their surface like heavy metals.

In the past, researchers have shown bottled water can contain tens of thousands of identifiable plastic fragments in a single container. However, until recently, only the larger microplastics were detectable with available measuring tools, leaving the area of nanoplastics largely a mystery.

Using Raman microscopy (显微镜学), capable of detecting particles down to the size of a flu virus, the team measured an average of 240, 000 particles of plastic per liter of bottled water, 90 percent of which were nanoplastics, a revelation 10 to 100 times larger than previous estimates.

These plastics likely originate from the bottle material, filters used to “purify” the water, and the source water itself. “It is not totally unexpected to find so much of this stuff, ” the study’s lead author, Columbia graduate student Naixin Qian, said in a statement. His team hopes to expand their research into tap water and other water sources to better inform our exposure to these potentially dangerous particles. “The idea is that the smaller things get, the more of them I reveal, ” he added.

1. What is the primary focus of the new research?
A.The presence of plastic particles.B.The use of plastic in everyday products.
C.The detection methods for microplastics.D.The potential risks of nanoplastics to human.
2. What is the advantage of Raman microscopy?
A.Finding the source of plastic particles.B.Helping to cure the deadly flu virus.
C.Detecting the smaller plastic particles.D.Improving the quality of bottled water.
3. Why will the team expand their research into tap water?
A.To focus on areas with higher plastic pollution.
B.To be aware of the dangerous particles in daily life.
C.To further measure the types of particles in tap water.
D.To detect the smaller plastic particles in industrial areas.
4. What is Qian’s attitude towards his research?
A.Skeptical.B.Objective.C.Conservative.D.Positive.
2024-03-26更新 | 373次组卷 | 8卷引用:英语 (上海卷02) -2024年高考押题预测卷(含听力)
文章大意:这是一篇说明文。介绍了加州今年干旱减轻的现状,以及一些新的担忧。

2 . After five long years, it appears California’s drought is finally becoming less severe. _______ a recent string of storms, more than a third of the state has now welcomed healthy precipitation (降水量), and California’s snowpack—a(n) _______ source of water as the year progresses—has reached nearly twice its seasonal average in some parts of the Sierra Nevada. That’s a dramatic improvement over last summer, when literally every inch of the state _______ drought conditions. It’s also welcome news for Californians, who have faced a series of water _______ since Governor Jerry Brown declared a state of emergency in early 2014. Farmers have been forced to spend heavily to maintain production.

The state’s water struggles, _______, are far from over. For one, nobody knows for sure how long these rains will last. Although recent precipitation has been _______—in some places more than 80 inches—the accuracy of storm forecasting remains _______ beyond a week. Californians know this all too well: last year, experts projected a “Godzilla” El Niño that would bring record levels of precipitation. It never _______. “Will six weeks from now be wet?” asks Jeanine Jones, California’s interstate water-resources manager. “The skill in that kind of forecasting is just not there.”

_______, a storm slowdown is a very real possibility—and it could leave California without enough water to make it through the dry summer. ________, when that happens, the state has turned to groundwater stored in natural rock formations deep beneath the earth’s surface. But those ________ remain used up after years of drought; restoring them could take years in some places, says Jones.

The quick inrush of water has also created a(n) ________ balancing act for water managers. Keeping surface reservoirs (水库) filled to the edge protects against the possibility of a sudden dry spell, but it also


________ the risk of flooding if and when future storms hit. To that end, water managers opened the Sacramento Weir floodgates earlier this month to pour reservoir water into nearby fields after ________ showed local water levels would likely continue to rise. That’s a calculation that will be made across the state in the coming months.

For now, though, Jones is focused on planning and ensuring the state’s water supply whatever may happen. “We’re halfway through our wettest season, and conditions have been encouraging,” she says. “I would say we’re ________ optimistic.”

1.
A.According toB.With respect toC.Thanks toD.In addition to
2.
A.officialB.exhaustibleC.unexpectedD.crucial
3.
A.experiencedB.improvedC.worsenedD.investigated
4.
A.pollutionB.restrictionsC.pressureD.cycles
5.
A.neverthelessB.thereforeC.meanwhileD.moreover
6.
A.accurateB.plentifulC.consistentD.emergent
7.
A.productiveB.unchangeableC.progressiveD.unreliable
8.
A.fell behindB.broke downC.came aboutD.took off
9.
A.Or elseB.In other wordsC.At that pointD.Above all
10.
A.LiterallyB.ContrarilyC.HistoricallyD.Consequently
11.
A.levelsB.formationsC.strugglesD.reserves
12.
A.randomB.delicateC.mechanicalD.insensible
13.
A.heightensB.assumesC.minimizesD.identifies
14.
A.restorationsB.calculationsC.conditionsD.projections
15.
A.hopelesslyB.extremelyC.guardedlyD.cheerfully
2023-04-17更新 | 415次组卷 | 1卷引用:2023届上海市长宁区高三下学期二模英语试卷
完形填空(约460词) | 困难(0.15) |
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文章大意:本文是一篇说明文。文章主要介绍了德比市批准了有望成为英国迄今为止最大的城市野生动物回归项目。

3 . The news that Derby has approved what promises to be Britain’s largest urban rewilding project so far is very welcome. The 320-hectare Allestree Park will, subject to detailed consultation, be given over to a range of habitats and perhaps even see the reintroduction of species such as dormice and red kites.

Urban rewilding - which is not the same as urban green space, however extensive - can take many forms. They _________ from aiming to slow down the rate of species loss by _________ swift (雨燕) and sparrow boxes to new apartment constructions (there are now 247m fewer house sparrows than there were in 1980) to designating areas the size of Allestree Park.

But in fact, some of the most successful projects have been _________. Canvey Wick, a disused area of the Thames estuary, returned to a “self-wilded rainforest” that is now home to nearly 2,000 invertebrate (无脊椎的) species, including at least three _________ thought to be extinct. Rivers _________ natural wildlife corridors, working their way through cities, then linking them to countryside. The Guardian columnist George Monbiot gives the example of the River Wandle, which in the 19th century supported up to 90 factories, and was described as “the hardest worked river for its size in the world.” Now it teems with (充满着) wildlife, and the local authorities have considered _________ beavers (海狸).

Urban rewilding, _________, won’t make a massive difference to global heating, with only 6% or so of Britain is actually built on it. But giving nature freer rein (控制) in parts of towns and cities could help to mitigate (缓解) flooding, and to slow species loss. Importantly, about 83% of us live on the portion of the UK’s land that is classed as urbanised, and access to nature has also been shown to improve psychological well-being. One recent Canadian study found that adding just 10 trees to a city block had a big effect on people’s _________ of their health; research is beginning to find that increasing biodiversity can heighten that impact. And on a more general scale, those who _________ wildness are more likely to fight for it.

The pressure for development means that there will always be tension with __________ interests: the Swans-combe Peninsula in Kent, another self-wilded area that is home to 1,992 species of invertebrates, including 250 of conservation concern, is now __________ for the London Resort, including a theme park expected to destroy 76 hectares of priority habitat which forms a vital part of the ecological network. This loss would be __________ losing 140 football pitches (球场) __________ of nationally important habitat.

In these mid-pandemic, post-Brexit, austerity-bitten (财政紧缩的) times, the financial arguments can be hardest to __________ for councils short of cash, but the evidence that “we need nature as much as it needs us”, in the words of Jo Smith of the Derbyshire Wildlife Trust, is surely __________. With a bit of imagination, flexibility and commitment, many more urban areas could follow Derby’s example.

1.
A.differB.originateC.rangeD.develop
2.
A.transportingB.attachingC.leadingD.transforming
3.
A.matureB.establishedC.reputationalD.accidental
4.
A.specificallyB.fundamentallyC.previouslyD.primarily
5.
A.bring aboutB.serve asC.contribute toD.rely on
6.
A.breedingB.launchingC.introducingD.favoring
7.
A.by contrastB.for instanceC.in itselfD.in the meanwhile
8.
A.appreciationsB.perceptionsC.insightsD.recovery
9.
A.encounterB.sustainC.createD.promote
10.
A.recreationalB.politicalC.industrialD.commercial
11.
A.qualifiedB.maintainedC.reservedD.cultivated
12.
A.linked toB.inseparable fromC.dismissed asD.equivalent to
13.
A.valueB.profitC.benefitD.worth
14.
A.approveB.counterC.settleD.consider
15.
A.fundamentalB.essentialC.overwhelmingD.obvious
2022-11-30更新 | 814次组卷 | 1卷引用:上海市进才中学2021-2022学年高三上学期12月月考英语试卷
完形填空(约400词) | 较难(0.4) |
文章大意:这是一篇说明文。文章主要讲述了根据气候科学家的一份综合新报告,到2050年,美国海岸线的海平面将上升约一英尺。在这个过程中,虽然各个地区的海平面上升程度不同,但是东部和海湾海岸的海平面上升幅度会更大。

4 . Sea levels along coastlines in the United States will rise about one foot by 2050, with larger increases on the East and Gulf coasts, according to a comprehensive new report by climate scientists.

Oceans have already risen about one foot in the last century, as climate change melts glaciers (冰川) and ice caps around the world. But the pace is ______ scientists warn, and the next 30 years will see the same amount of sea level rise as the previous 100.

The report gives the most concrete and certain sea level ______ ever published for the U.S. And advances in computer models and real-world information about rising seas make it possible to see the future more ______ than ever.

Sea level rise ______ dramatically for different parts of the U.S. coast. The ocean is not like a bucket of water that rises at the same time as more liquid is ______. Ocean ______ push more water into some areas than others. Ice in different regions melts at different rates. In many parts of the world, sea level rise is ______ because coastal land is sinking.

The new report adds up all those factors to give ______ estimates for different parts of the U.S. The authors predict about a foot and a half of sea level rise for the Gulf Coast by 2050, with particular hot spots from Texas to Mississippi, where exploitation of underground oil, gas and drinking water is causing the land to rapidly _____ into the rising ocean water. There are ______ hot spots in the Mid-Atlantic region, including Annapolis, Md. and Norfolk, Va. Overall, the East Coast is ______ to experience a little more than a foot of sea level rise in the next 30 years.

Sea level rise is happening more ______ on the West Coast, including much of southern and western Alaska, the report finds. The authors predict about six inches of sea level rise by 2050.

William Sweet, a sea level rise expert with the National Oceanic and Atmospheric Administration (NOAA) and one of the authors of the new report, says cities that are not yet flooded should ______ now. Quickening sea level rise may require that humans ______ where and how we build homes, offices, roads and anything else that is better dry than wet. Right now, development in flood-prone (易发洪水的) areas is increasing, despite climate change.

Beyond 2050, the report makes clear that humans have a ______: reduce greenhouse gas emissions and control sea level rise, or keep burning fossil fuels and face oceans that are two, three or even 10 feet higher than today.

1.
A.dying downB.paying backC.holding onD.speeding up
2.
A.recordsB.extremesC.predictionsD.solutions
3.
A.flexiblyB.clearlyC.randomlyD.incredibly
4.
A.continuesB.impactsC.multipliesD.varies
5.
A.addedB.drainedC.spiltD.needed
6.
A.creaturesB.currentsC.ecosystemsD.voyages
7.
A.stableB.crucialC.unlikelyD.worse
8.
A.nationalB.regionalC.apparentD.approximate
9.
A.digB.turnC.collapseD.dive
10.
A.similarB.sceneryC.distantD.diverse
11.
A.projectedB.obligedC.permittedD.noticed
12.
A.sharplyB.mysteriouslyC.unexpectedlyD.slowly
13.
A.make senseB.take noticeC.keep paceD.stay proud
14.
A.schemeB.cancelC.changeD.delay
15.
A.promiseB.quarrelC.choiceD.protest
阅读理解-阅读单选(约370词) | 较易(0.85) |
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文章大意:这是一篇说明文。文章主要说明了墨西哥科学家Laura Cuaya经过研究发现,狗可以区分不同的语言。文章介绍了研究开展的过程以及研究的发现。

5 . When Mexican scientist of the evolution of animal behavior, Laura Cuaya, moved to Hungary for her postdoctoral studies in Budapest, she brought her pet dog, Kun-kun, along for the ride. Cuaya couldn't help noticing how locals warmed to dogs. This prompted her naturally curious scientific mind to start asking questions. “Here people are talking all the time to Kun-kun, but I always wonder if Kun-kun can recognize that people in Budapest speak Hungarian, not Spanish?” So she set out to find an answer through a scientific study.

Cuaya and her colleagues decided to use brain images from MRI scanning to shed light on her hunch. They worked with dogs of various ages that had, until the experiment, only heard their owners speak just one of the two languages, Spanish or Hungarian. Not surprisingly, getting the dogs to happily take part in the experiment took some creative coaxing and animal training! The researchers first needed to teach Kun-kun and her 17 fellow participating dogs including a labradoodle, a golden retriever and Australian shepherds, to lie still in a brain scanner. Their pet parents were always present, and they could leave the scanner at any point.

The research team played children's book classic The Little Prince in both Spanish and Hungarian while scanning the dogs' brains with an MRI machine. They were looking for evidence that their brains reacted differently to a familiar and unfamiliar language. The researchers also played scrambled versions of the story to find out if dogs could distinguish between speech and non-speech.

The images reveal that dogs' brains show different patterns of activity for an unfamiliar language than for a familiar one — the first time anyone has proved, researchers say, that a non-human brain can distinguish between two languages. This means that the sounds and rhythms of a familiar language are accessible to non-humans.

Interestingly, the team also found that the brains of older dogs were more skilled at detecting speech “suggesting a role for the amount of language exposure”. They suggest that dogs have refined their ability to distinguish between human languages over the long process of domestication.

1. What is paragraph 1 mainly about?
A.The background of the study.B.The significance of the study.
C.The concern of the researcher.D.The introduction to the researcher.
2. What did Cuaya consider when choosing dogs for study?
A.Age limits.B.Brain patterns.C.Language exposure.D.Owners' commands.
3. The results of the study are ________.
A.practicalB.contradictoryC.compromisingD.groundbreaking
4. Which of the following can be the best title?
A.Dogs Can Tell Foreign LanguagesB.Dog Brains Have Different Patterns
C.Old Dogs Know More About Human SpeechD.Dogs Can Differ Speech From Non-Speech
2022-03-24更新 | 765次组卷 | 9卷引用:上海市奉贤中学2021-2022学年高三下学期4月单元练习英语试题
语法填空-短文语填(约370词) | 较难(0.4) |
文章大意:这是一篇说明文。文章主要介绍剑桥大学关注全球变暖情况,希望成为世界上节能建筑的领导者。
6 . Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

What Can One City Do?

People around the world are concerned about global warming and are talking about ways to stop it. The city of Cambridge, Massachusetts, in the United States, is doing more than just talking. Cambridge wants to become a world leader in energy-efficient buildings.

Today, Naema Omar is improving her 80-year-old house in Cambridge. To keep the heat inside in the winter, she is filling the space inside the walls with insulation(绝缘). Insulation is usually made from chemicals, but in her house, she is using     1     new - insulation made from recycled blue jeans and other clothes. She has also put in a new type of light called an LED lamp    2     uses only a tiny amount of electricity. The light-bulbs in it last for 20 to 30 years before needing     3     (change).

But eco-friendly insulation and lighting are much more expensive than the usual kind     4     many people in Cambridge can’t afford them. A group called Cambridge Energy Alliance (CEA)     5     (work) to solve this problem. They want to help every resident and business in the city conserve energy. People can ask the group to come and look at     6     they can make their house or office building eco-friendly. The CEA then makes them a plan to save 15 to 30 percent on heating, gas, water, and electricity. Then the group help people borrow money to pay for the improvements. The money that people save by being     7     (efficient) should be enough to pay back the loan.

It was ten years ago that the city of Cambridge decided to try to reduce its carbon emissions. More than 80 percent of the carbon dioxide     8     (produce) in Cambridge comes from buildings - not from cars     9     successful, the program will not only save a lot of energy but also make new jobs for local people. Workers    10     (need) to put in insulation, install better doors and windows, and make other energy improvements on buildings. The CEA hopes that their program will be an example for other cities.

2023-12-04更新 | 326次组卷 | 1卷引用:上海市华东师范大学附属东昌中学2023-2024学年高三上学期10月测评英语试题
阅读理解-阅读单选(约590词) | 较难(0.4) |
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文章大意:这是一篇议论文。文章主要论述了英国空气污染严重的问题,这会引起相关疾病,但英国政府却毫不作为,甚至试图寻求排放更大污染的办法,因此认为英国政治家应当受到抨击。

7 . Last week came solid evidence that living in toxic Britain can seriously harm your health. Cardiologists at Queen Mary University of London found that even "safe" levels of air pollution are linked to heart abnormalities similar to those seen during the early stages of heart failure. Their study of almost 4,000 people was backed up by a major US study which showed that higher exposure to fine particles and nitrogen oxides is linked to an acceleration in the hardening of the arteries (动脉).

We have long known that air pollution leads to coughing, shortness of breath and irritation in the eyes, nose and throat. It is also clearly linked to respiratory diseases such as asthma and bronchitis, as well as diabetes and some cancers. It is now beyond doubt that children's health is greatly affected, and links have been made between it and Parkinson's, Alzheimer's, dementia and congenital birth defects.

The statistics are alarming. In the UK, more than 2 million people suffer from cardiovascular (心血管的) diseases, and nearly one in seven men and one in 12 women will go on to die from them. Heart disease costs the UK economy nearly £30 bn a year to treat, as much as the state spends on secondary education. It is one of the greatest single drains on the public purse. Britain, however, rejects common sense, and shows little sign that it wants to seriously address pollution any time soon.

Despite the mounting evidence of air pollution's costs and health impact, Britain has had to be dragged screaming through the courts to make it comply with minimal clean air guidelines and laws. Successive governments have continually tried to evade their legal responsibilities, spending millions of pounds fighting in the courts and lobbying the EU to be allowed to continue to pollute.

The government now has a new draft clean air strategy our for consultation until 14 August and claims to be acting faster to tackle air pollution than almost every other major developed economy. It pledges to halve the number of people living in places that do not meet World Health Organization pollution guidelines, and it propose to end the sale of new diesel and petrol cars and vans by 2040.

But intending to cut the air pollution bill by around 12.5% in 12 years and waiting 20 years to be rid of the worst vehicles seems criminally weak. Meanwhile, government is knowingly forging ahead with infrastructure plans that will inevitably increase air pollution. The effect will inevitably be to massively increase air pollution and health costs for millions of Britons.

So could the car-clogged streets of Sunder-land, Birmingham and London, where I lived for many years, have contributed to my disease and those of millions of others? Probably. Could the oil companies be responsible for far more than climate change? Certainly. Could Britain's monstrous and mounting bill for heart disease be partly due to the highly polluting diesel cars that governments so scandalously encouraged us to drive? Quite possibly.

What is certain is that air pollution is now an international scandal, and the cause of a health emergency that governments and industry have failed to address. It undoubtedly threatens life more than any war or disaster. When there are clear alternatives to burning fossil fuels then politicians who do not act to prevent it must stand accused not just of failing to act, but of condoning the mass poisoning of their people.

1. According to the study, ________ is probably unrelated to air pollution.
A.diabetesB.stomachachesC.AlzheimerD.artery hardening
2. The writer thinks Britain shows little sign to tackle air pollution because ________.
A.British government has been screaming for help in court
B.EU has dissuaded British government for help in court
C.British government has tried to have EU's permission for more pollution
D.The government firmly refused to act in accordance with the clean air guideline.
3. What is the writer's attitude toward the new draft?
A.Britain will implement it faster than other major developed economies.
B.It presents a practical way to end pollution from vehicles.
C.Its goal will be achieved at the price of massive health cost.
D.It's aiming too low when more pollution is expected.
4. What can be inferred from the article?
A.Government officials should feel disgraced for non-action as leaders.
B.The government should cover the bills for air pollution and related diseases.
C.Oil companies should not be held accountable for the international scandal.
D.British government is an irresponsible one for encouraging people to use vehicles.
2022-05-10更新 | 693次组卷 | 3卷引用:上海市复旦大学附属中学2021-2022学年高三下学期英语阶段检测
选词填空-短文选词填空 | 较难(0.4) |
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文章大意:本文是说明文。主要讲述了大城市遭受着一系列的环境问题。
8 . Directions: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.
A. stem     B. dot     C. attributable     D. exceeded     E. overlook     F. exposed
G. drainage     H. emerging     I. sinking     J. access     K. established

The Mega-City Environment

Mega-cities suffer from a catalog of environmental ills. A World Health Organization(WHO)/United Nations Environment Program(UNEP)study found that seven of the cities-Mexico City, Beijing, Cairo, Jakarta, Los Angeles, Sao Paulo and Moscow-had three or more pollutants that    1     the WHO health protection guidelines. All 20 of the cities studied by WHO/UNEP had at least one major pollutant that went beyond    2     health limits.

According to the World Resources Institute, “Millions of children living in the world’s largest cities, particularly in developing countries, are    3     to life-threatening air pollution two to eight times above the maximum based on WHO guidelines. Indeed, more than 80 percent of all deaths in developing countries    4     to air pollution-induced lung infections are among children under five.” In the big Asian mega-cities such as New Delhi, Beijing and Jakarta, approximately 20 to 30 percent of all respiratory diseases    5     from air pollution.

Almost all of the mega-cities face major fresh water challenges. Johannesburg, South Africa, is forced to draw water from highlands 370 miles away. In Bangkok, saltwater is invading aquifers(地下蓄水层). Mexico City has a serious    6     problem because of excessive groundwater withdrawal.

More than a billion people, 20 percent of the world’s population, live without regular    7     to clean running water. While poor people are forced to pay high fees for private water, many cities squander their resources through leakages and illegal    8    . “With the population of cities expected to increase to five billion by 2025,” says Klaus Toepfer, executive director of the UNEP, “the urban demand for water is set to increase rapidly. This means that any solution to the water crisis is closely linked to the governance of cities.“

Mega-city residents, crowded into unsanitary slums, are also subject to serious disease outbreaks. Lima, Peru(with population estimated at 9.4 million by 2015)suffered a cholera outbreak in the late 1990s partly because, as the New York Times reported, ”rural people new to Lima...live in houses without running water and use the outhouses(屋外厕所)that    9     the hillsides above.“

It’s worth looking at some of these    10     mega-cities in detail, because daily life there is likely to be the pattern for a majority of the world’s population. Most are already experiencing severe environmental problems that will only be worsened by rapid population increases.

2023-03-31更新 | 335次组卷 | 1卷引用:上海市复旦大学附属中学2022-2023学年高三下学期3月月考英语试题
阅读理解-阅读单选(约430词) | 较难(0.4) |
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文章大意:本文是说明文。文章主要介绍了蚂蚁种植植物的行为比我们想象的要广泛。

9 . The cultivation of plants by ants is more widespread than previously realized, and has evolved on at least 15 separate occasions.

There are more than 200 species of ant in the Americas that farm fungi (真菌) for food, but this trait evolved just once sometime between 45 million and 65 million years ago. Biologists regard the cultivation of fungi by ants as true agriculture appearing earlier than human agriculture because it meets four criteria: the ants plant the fungus, care for it, harvest it and depend on it for food.

By contrast, while thousands of ant species are known to have a wide variety of interdependent relationships with plants, none were regarded as true agriculture. But in 2016, Guillaume Chomicki and Susanne Renner at the University of Munich, Germany, discovered that an ant in Fungi cultivates several plants in a way that meets the four criteria for true agriculture.

The ants collect the seeds of the plants and place them in cracks in the bark of trees. As the plants grow, they form hollow structures called domain that the ants nest in. The ants defecate (排便) at designated absorptive places in these domain, providing nutrients for the plant. In return, as well as shelter, the plant provides food in the form of fruit juice.

This discovery prompted Chomicki and others to review the literature on ant-plant relationships to see if there are other examples of plant cultivation that have been overlooked. “They have never really been looked at in the framework of agriculture,” says Chomicki, who is now at the University of Sheffield in the UK. “It’s definitely widespread.”

The team identified 37 examples of tree-living ants that cultivate plants that grow on trees, known as epiphytes (附生植物). By looking at the family trees of the ant species, the team was able to determine on how many occasions plant cultivation evolved and roughly when. Fifteen is a conservative estimate, says Campbell. All the systems evolved relatively recently, around 1million to 3 million years ago, she says.

Whether the 37 examples of plant cultivation identified by the team count as true agriculture depends on the definitions used. Not all of the species get food from the plants, but they do rely on them for shelter, which is crucial for ants living in trees, says Campbell. So the team thinks the definition of true agriculture should include shelter as well as food.

1. According to biologists, why is ant-fungus cultivation considered as a form of true agriculture?
A.Because it occurred earlier than human agriculture.
B.Because it fulfills the standards typical of agricultural practices.
C.Because it redefines the four criteria for true human agriculture.
D.Because it is less common than previously thought.
2. What motivated Chomicki and others to review the literature on ant-plant relationships?
A.They determined on new family trees of the ant species.
B.They overlooked some tree-living ants that provided nutrients for the plants.
C.They never studied the ant-plant relationships within the context of agriculture.
D.They never identified any an t species that engaged in cultivation of fungi.
3. Which of the following statements is supported by the team's findings according to the passage?
A.Ants’ cultivation of plants is limited to a few specific species.
B.The cultivation of fungi by ants is considered the earliest form of agriculture.
C.True agriculture in ants involves only food-related interactions with plants.
D.Ants have independently cultivated plants on at least 15 distinct occasions.
4. What is the passage mainly about?
A.The evolution of ants in the plant kingdom.
B.The widespread occurrence of ant-plant cultivation.
C.The discovery of a new ant species engaging in agriculture.
D.The contrast between ant agriculture and human agriculture.
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10 . The UN this week launched a report urging companies to stop issuing false net-zero targets that amount to greenwashing.

Greenwashing is a term used to describe situations where companies mislead consumers by claiming to be eco-friendly or sustainable as a marketing plan rather than as a core principle of their business model. Often, these industries spend more money making themselves appear sustainable than they do taking actual sustainable measures into their company.

Cities, financial institutions, and scores of companies have announced plans to reduce their emissions to zero, which, in principle, should help the fight against climate change.

“The problem is that the criteria for these net-zero commitments have varying levels of precision and loopholes (漏洞),” said UN Secretary-General Antonio Guterres during the launch of the report.

Many net-zero plans contain far-away or unclear targets and often call for the use of unproved technologies like carbon capture and tree planting, which effectively allow companies to continue polluting the atmosphere. Studies show that most of these net-zero plans will do little to stop temperatures from rising. For example, many oil majors have announced plans to reduce emissions from their operations to zero by 2050 that do not take into account the carbon emitted by the fossil fuels they sell, which would allow them to increase production. Far from decreasing, fossil fuel production is going strong.

To close these net-zero loopholes, the UN this week released a report that includes 10 recommendations to ensure that companies, cities, regions, and other non-state actors issue credible and accountable net zero commitments. “Their plans cannot rely on cheap carbon credits instead of immediately cutting their own emissions,” Guterres said.

Financial institutions need to cut down emissions from all their investments and businesses need to bring down the carbon footprint of their supply chain, the report said. The report’s lead author, Catherine McKenna, urged companies to release new net-zero targets within a year. The updated targets must contain concrete actionable details.

1. What does “greenwashing” refer to?
A.A green technology.B.A misleading statement.
C.A business model.D.A spending target.
2. Why does the author mention the oil majors?
A.To prove oil majors are really responsible.
B.To set some good examples for other companies.
C.To show some net- zero commitments make no sense.
D.To indicate the benefit of net zero plans to climate change.
3. How does Guterres feel about the issued net-zero plans?
A.Dissatisfied.B.Guilty.C.Shocked.D.Confused.
4. What is advised to do to fix net-zero loopholes?
A.Plant more trees.B.Share more supply chains.
C.Depend on cheap carbon credits.D.Make concrete actionable targets.
2023-05-05更新 | 326次组卷 | 5卷引用:阅读理解变式题-环境保护
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