1. How many kinds of climate emergencies does the speaker mention?
| A．Five. | B．Six. | C．Seven. |
| A．Tidal waves. | B．Damaged dams. | C．The rising warm air. |
| A．Drought. |
| B．Sea level. |
| C．Disappearing species. |
| A．He does research on polar bears. |
| B．He proves hurricanes get stronger. |
| C．He aims to protect coral reefs. |
2 . The world’s forests may hold more secrets than previously thought: a new global estimate of tree biodiversity suggests that there are about 9,200 tree species remaining undocumented. Most are likely in the tropics, according to the new research.
The new research drew on the efforts of hundreds of contributors, who have categorized trees in two huge data sets: One, the Global Forest Biodiversity Initiative, records every species found in extensively documented forest plots worldwide. The other, TREECHANGE, puts together sightings of individual species. Together they suggest there are approximately 64,100 recorded tree species on the planet — up from previous estimates of around 60,000.
The researchers reached their estimate of an additional 9,200 yet undocumented species on the basis of the number of rare ones already in the databases. Most unknown species are likely to be defined as rare, found in limited numbers in small geographical areas, says the quantitative forest ecologist Jingjing Liang. The team’s result is “a rather conservative estimate,” Liang says, “because scientists know less about the preponderance of uncommon trees in places such as the Amazon, where out-of-the-way spots could host pockets of unusual species found nowhere else.” “If we can focus the resources on those rain forests in the Amazon,” Liang adds, “then we would be able to estimate it with higher confidence.”
Silman, a conservation biologist, who was not involved in the new study agrees that the study result is likely an underestimate. His and his colleagues’ local surveys suggest there are at least 3,000 and possibly more than 6,000 unknown tree species in the Amazon basin alone. Tree species often get grouped together based on appearance, he notes, so new genetic analysis techniques will likely lead to the discovery of even more biodiversity. Sliman wonders how many species will go extinct before scientists describe them. “How many are already known to native peoples in the Amazon — or were known to peoples or cultures who have themselves been made extinct through colonization, disease, or absorption? How many “species” already have dried samples sitting in a cabinet?” he says.
Searching for the new species will inform not only conservation but the basic evolutionary science of how and why species diversify and die out, Silman says. “Just the fact that there are thousands of species of something as common as trees out there that are still left to be discovered,” he adds, “I find pretty inspirational.”
1. What is the finding of the new research?| A．About nine thousand new tree species have been identified. |
| B．Thousands of tree species remain unknown to science. |
| C．Maintaining tree diversity has become a global challenge. |
| D．Human activities have led to the reduced number of trees. |
| A．The researchers adopted quality method to analyze data. |
| B．The researchers did extensive field study in out-of-the-way spots. |
| C．Inferring from the existing dada is the main research method. |
| D．Doing surveys and interviews is the main research method. |
| A．majority | B．evolution | C．cultivation | D．capability |
| A．genetic analysis technique failed to produce accurate information |
| B．trees of similar sizes in the Amazon basin are grouped together |
| C．too many rare trees were made into dried samples before being documented |
| D．the local peoples or the local cultures are not fully aware of the tree species. |
3 . A team of scientists recently published one of the most comprehensive efforts yet to understand just how much carbon great whales absorb from the ocean, and the value that presents in the fight against climate change.
“Whales are large-bodied animals, and they live for a long time. Many of them migrate over vast distances,” said study leader Heibi Pearson, a marine biologist at the University of Alaska Southeast. “And so they have the potential to have these huge impacts on the ecosystem, including the carbon cycle.”
In their most direct impact, whale bodies hold an enormous amount of carbon that would otherwise be in the ocean or atmosphere. Twelve great whale species hold an estimated 2 million tons of carbon in their bodies, the authors found.
And that’s just the living members of the whale family. Another 62,000 tons of carbon is kept under the sea every year in the form of whale falls. When a whale dies in open water and sinks into the deep, a lifetime of collected carbon goes with it. It can take up to 1,000 years for water and elements at the bottom of the sea to cycle back up to the surface, which means that carbon is effectively sequestered for that long.
In addition, whales’ waste facilitates the growth of organisms at the base of the marine food chain, promoting the growth of carbon-consuming life throughout the ecosystem.
However, whale populations still haven’t recovered from the destructive effects of industrial whaling. Commercial hunting in the 19th and 20th centuries decreased the total mass of whales on the planet by 81%, according to the authors.
“Whales alone are not going to solve climate change, but thinking about whales as playing a role in the carbon cycle can help motivate whale conservation,” said Andrew Pershing, a co-author of the study. “There are a lot of win-wins there, and I think that’s very true of a lot of natural climate solutions.”
1. How do whales influence the climate change?| A．By storing carbon in their bodies. | B．By speeding the carbon cycle. |
| C．By absorbing carbon from the air. | D．By consuming carbon on their migration. |
| A．Employed. | B．Trapped. | C．Monitored. | D．Measured. |
| A．Their population has risen by 81%. |
| B．Their waste contributes to the ecosystem. |
| C．Whale hunting has been banned altogether. |
| D．Their death will break the marine food chain. |
| A．We can rely on whales to change climate. |
| B．Whale protection still has a long way to go. |
| C．We’ll soon win the battle against climate change. |
| D．Whale protection is beneficial to solving climate issues. |
4 . The cold, wet weather of winter often puts out any wildfires that are still burning, but not in the far North areas, such as Alaska, Canada, and other parts of North America. Some forest fires just don’t die in these places. Think of the fires as “zombies” (僵尸): Scientists do. When summers are warmer than normal, some fires can hide through the winter. They burn dead plant matter and soils under snow. In May 2021, scientists reported their work to a scientific journal. The scientists saw that zombie fires are rare but they could become more common as the world warms, the study warns.
“Some years, new fires were starting very close to the previous year’s fire,” explains Rebecca Scholten. She studies Earth and environmental sciences at Vrije University Amsterdam in the Netherlands. The new fires made scientists wonder how often fires might survive the winter. The scientists started by combing through firefighter reports. Then they compared these with satellite images of Alaska and northern Canada. The scientists looked for fires that began close to fires from the year before. They also focused on blazes starting before the middle of summer. Random lightning or human actions spark most fires in the area, Scholten says. But those fires happen later in the year.
Zombie fires accounted for less than 1 percent of the total area burned by fires from 2002 to 2018. But it changed from year to year. Take 2008, for example. A zombie fire burned Alaska that year. It caused almost one-third of fire damage that year. One clear pattern emerged: Zombie fires were more likely to happen after very warm summers. High temperatures may allow fires to reach more deeply into the soil. Such deep burns are more likely to survive to spring.
The zombie fire threat could grow. The climate is warming. Forests in the far North already are warming faster. “We’re seeing more hot summers and more large fires and intense burning,” Scholten says. Plus, zombie fires could cause more issues. The fires release huge amounts of greenhouse gases. These trap heat in the Earth’s atmosphere. The atmosphere is a layer of gases that surround the Earth. Scholten’s research could help fire management. Firefighters would know to check for them after warm summers.
1. What may lead to zombie fires according to the passage?| A．wet weather | B．hotter summers |
| C．low temperatures | D．cold winters |
| A．Where flames broke out provided the clue. |
| B．Changing climate plays a role in the zombie fire threat. |
| C．Zombie fires are less likely to happen after very warm summers. |
| D．It is of little use comparing firefighter reports with satellite images. |
| A．It is important to understand zombie fires. |
| B．Zombie fires are likely to be under control soon. |
| C．Firefighters cannot do much to stop the zombie fires. |
| D．We still have much to learn about the warming climate. |
| A．“Zombie“ wildfires do great damage to land |
| B．“Zombie” wildfires release greenhouse gases |
| C．“Zombie“ wildfires sparked by human actions |
| D．“Zombie” wildfires reappear after wintering underground |
“You should get a dog.” my therapist (治疗专家) said. A dog? I couldn’t even look after myself. I took a deep breath and carefully considered the idea of welcoming a canine (犬科的) friend into my life. This seemed like too easy a solution to the fact that I couldn’t leave the house without bursting into tears.
Adopting an animal during the height of the pandemic was far from easy. When I found Simba, his adoption profile made him out as the perfect puppy. I filed out the paperwork and had a few weeks to prepare for his arrival.
When he came home, it became increasingly obvious that Simba didn’t understand “no”, “stop it’ or “don’t do that”. He was the worst-behaved dog I’d ever seen. I was beginning to doubt my therapist’s advice.
At home, I found him sitting on my bed comfortably. Jumping from the sofa to the tea table was his favorite game every day. He fought tooth and nail to get a bite of my meals and ate anything that fell on the floor. What was worse, dog waste and urine were seen everywhere, which annoyed me most. But his curiosity and vigor really impressed me. Training him to behave well kept me busier than I’d ever expected.
I decided to start taking him for walks. I could barely leave the house before, but my heart couldn’t say no to Simba. Simba showed me what bravery looked like. He didn’t stop to consider every possible outcome of a situation. He simply went for it. If there was a dog at a park, he would run toward it. He always leapt forward and explored the unknown by sniffing here and there unless I called him. He loved adventure. I found myself mirroring his behavior after a while, jumping out of bed without a second thought. I began to find the motivation to get out of bed in the morning.
注意：1. 续写词数应为 150 左右；2. 请按如下格式在答题卡的相应位置作答。
Ten minutes later, Simba and I were walking in the nearby park.
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As time went by, I found myself totally changed.
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6 . Each year, the world produces more than 300 million tons of plastic waste, which can take a longtime to breakdown. Almost a third of the world’s plastic waste is polypropylene, a hard plastic used to make bottle: caps and food containers that typically take hundreds of years to degrade.
Now, a group of scientists at the University of Sydney, in Australia have developed a solution: using fungi (真菌) found in soils to devour lab samples of polypropylene.
In the experiment, the scientists first weakened pieces of polypropylene plastic by exposing them to heat, chemicals, or ultraviolet (UV) light so the fungi can do their job quickly. Fungi degrade materials like plastic into simpler molecules that they can then get rid of. The usually smooth plastic become full of marks as the fungi carryout their dirty work.
The two fungi, Aspergillus terreus and Engyodontium album, made a meal of the plastic in the lab experiments. As the researchers reported, between 25 and 27 percent of samples were digested after 90 days, and the plastic was completely broken down after 140 days.
More than 400 microorganisms have so far been found to degrade plastic naturally, with fungi attracting a fair bit of attention for their ability to degrade all sorts of man-made materials. “Recent studies suggest some fungi may even degrade some of the ‘forever chemicals’ like PFAS, but the process is slow and not yet well understood,” explains microbiologist Dee Carter of the University of Sydney.
Currently, the team is testing ways to speed up the degradation process, and assessing the economic and environmental factors of potential commercial use. If the team can transform their laboratory solution into a commercial-scale plastic waste management system, the world will finally have a promising solution to one of our most pressing environmental issues.
1. What does the underlined word “devour” probably mean in paragraph 2?| A．Produce. | B．Consume. | C．Analyse. | D．Recycle. |
| A．To leave marks on the sample. |
| B．To reduce plastic waste globally. |
| C．To change the shape of the plastic. |
| D．To quicken the degradation process. |
| A．Putting the solution into commercial use. |
| B．Establishing a system for rubbish sorting. |
| C．Maintaining a steady speed in the process. |
| D．Tackling the issue of pollution completely. |
| A．Scientists cutting down on waste |
| B．A solution used on a large scale |
| C．Plastic-eating fungi doing the trick |
| D．Severe plastic pollution reduced |
7 . Scientists have discovered more than 5,000 new species living on the seabed in an untouched area of the Pacific Ocean that has been identified as a future hotspot for deep-sea mining, according to a review of the environmental surveys carried out in the area.
It is the first time the previously unknown biodiversity of the Clarion-Clipperton Zone (CCZ), a mineral-rich area of the ocean floor that spans 1.7m sq miles between Hawaii and Mexico in the Pacific, has been comprehensively documented. The research will be critical to assessing the risk of extinction of the species, given contracts for deep-sea mining in the near-pristine area appear imminent.
Most of the animals identified by researchers exploring the zone are new to science, and almost all are unique to the region: only six, including a carnivorous sponge and a sea cucumber, have been seen elsewhere.
Contracts for mining exploration in the CCZ have been granted to 17 deep-sea mining contractors in an area covering 745,000 sq miles. The companies, which are backed by countries including Britain, the US and China, want to dig for minerals including cobalt manganese and nickel in part to sell to the alternative energy sector.
To better understand the impact of mining this fragile ecosystem and its newly discovered inhabitants, an international team of scientists has built the first “CCZ checklist” by compiling all the records from expeditions to the region. Published in the journal Current Biology, it includes 5,578 different species, of which an estimated 88% to 92% had never before been seen.
To study and collect specimens (样品) from the ocean floor, biologists have joined research cruises in the Pacific that send remote-controlled vehicles to traverse (穿越) the seabed 4,000 to 6,000 meters below. Adrian Glover, a deep-sea biologist at the NHM and senior author of the study described it as an “incredible privilege”. The expedition, funded through the Natural Environment Research Council and others, is backed by UK Seabed Resources (UKSR), a deep-sea mining company that operates the UK’s exploration area. The scientists watch operations by video link direct from the boat as new species are gathered by remote control vehicles in the darkness below.
The seabed, Glover said, is an “amazing place” where, despite the extreme cold and dark, life thrives. “One of the characteristics of the abyssal plain is the lack of food, but life has a way of persisting down there,” he said, “It’s a mystery.” One of the deep-sea animals discovered was nicknamed the “gummy squirrel”, because of its huge tail and jelly-like appearance, he said. There are also glass sponges, some of which look like vases.
With approval for deep-sea mining looming, Glover said he believed it was “imperative that we work with the companies looking to mine these resources to ensure any such activity is done in a way that limits its impact upon the natural world”.
1. What’s the meaning of the underlined word “imminent”?| A．Easy to carry out. | B．Ready to take place. |
| C．Hard to cope with. | D．Important to look over. |
| A．Identifying new species living on the seabed. | B．Assessing the risk of extinction of species. |
| C．Documenting the biodiversity of the area. | D．Exploring the potential for deep-sea mining. |
| A．Abundance of food. | B．Extreme lifeless environment. |
| C．Presence of glass sponges. | D．Prosperous life despite challenging conditions. |
| A．A magic zone:available to mining companies |
| B．A mineral-rich area: Clarion-Clipperton Zone |
| C．An “amazing place”: new species booming |
| D．Deep-sea wonders: the new species found in a Pacific mining hotspot |
8 . Have you ever heard of and seen Canadian geese? Do you know that they
Canadian geese have a good
Yesterday I witnessed two Canadian Geese arguing
Would they start quarreling again? I stood still,
They got along harmoniously again. Sometimes it’s not that bad to be
| A．draw on | B．focus on | C．feed on | D．try on |
| A．desire | B．reputation | C．affection | D．appetite |
| A．generous | B．faithful | C．weird | D．rude |
| A．well-informed | B．well-dressed | C．well-behaved | D．well-balanced |
| A．fiercely | B．blindly | C．cautiously | D．gently |
| A．deserted | B．located | C．fixed | D．laid |
| A．frequent | B．rare | C．common | D．constant |
| A．restricting | B．changing | C．pausing | D．speeding |
| A．desperate | B．simple | C．serious | D．disharmonious |
| A．frightened | B．annoyed | C．crashed | D．injured |
| A．finding out | B．dealing with | C．looking into | D．wondering about |
| A．passion | B．reason | C．talent | D．anxiety |
| A．scene | B．destination | C．landscape | D．park |
| A．looker-on | B．passer-by | C．truck | D．clump |
| A．upset | B．forgetful | C．mean | D．greedy |
9 . It could be said that trees naturally call for attention as they climb toward the sky with their arms outstretched. Yet, it’s still easy for us to ignore them. As we rush through our own day-to-day lives, trees seem to play the role of an insignificant backdrop.
Nothing could be further from the truth. Rooted to a single spot, trees appear sill.But that stillness is not associated with laziness. In fact, trees are guards of the planet as the impact of their hard work carries miles farther than the ground in which they stand.
Globally, trees are the most cost-effective tool in promoting biodiversity. They support the survival of a significant number of animals. For example, a big reason why ring-tailed lemurs (狐猴) are endangered is that half of the forests they depend on in Madagascar off the East coast of Africa were cut down.
Not only do animals depend on trees for shelter, trees are significant to the health of humans as well. In fact, doctors in Canada are so convinced of trees’ benefits for the mind and body that they recommend patients visit national parks. Trees help a lot in tackling climate change too. They absorb and store carbon dioxide(CO2) — the key greenhouse gas emitted by our cars and power plants — before it has a chance to reach the upper atmosphere and trap heat around the Earth’s surface.
So it’s time to put trees in the spotlight. The Arbor Day Foundation, the world’s largest nonprofit, is devoted to this exact mission: inspiring people to plant,protect, and honor trees. We know there’s never been a more important time for trees. And we know there’s never been a more important time for mankind to engage in its role as environmental guards. This isn’t a one-sided relationship. What we give to nature we will receive in return, tenfold (十倍地). So as springtime arrives once again, take a moment and appreciate what a tree can be.
1. What does the author mainly want to tell us by giving the example of ring-tailed lemurs?| A．Trees are insignificant for their stillness. |
| B．Trees play a vital role in cleaning the air. |
| C．Trees provide critical habitats for creatures. |
| D．Half of the forests in Madagascar were cut down. |
| A．To provide advice on planting trees. |
| B．To call for human attention to trees. |
| C．To show the best time of planting trees. |
| D．To stress the impact of trees on humans. |
1=Paragraph One 2= Paragraph Two 3= Paragraph Three 4= Paragraph Four 5=Paragraph Five
A． | B． | C． | D． |
| A．Trees: Cleaners of the Environment | B．Trees: Shelters for Creatures |
| C．Trees: Defenders of Human Health | D．Trees: Guards of the Planet |
10 . Discover Jiangsu
Known as the land of water, China’s coastal province of Jiangsu has all the geographical advantages to give it a starring role in the epic (史诗般的) tale of China’s ancient Maritime (海上的) Silk Road. With busy port cities, historic sites and breathtaking natural beauty, Jiangsu is the perfect place to follow the story of this remarkable trade route.
Nanjing and the voyages of Zheng He
At the beginning of the Ming dynasty, the city of Nanjing in Jiangsu was declared capital of China. Besides building one of the longest city walls in history, the emperor ordered the construction of vast “treasure ships” in 1403. Under Zheng He’s command, the ships finished seven epic ocean voyages, reaching as far as the east coast of Africa.
Nantong and overseas trade
In Jiangsu’s port city of Nantong, goods have flowed in and out of the province by water for centuries. Beyond Lusi Port Town, a busy seascape of boats travel on the waters of Jiangsu’s coast. It’s a scene that shows how China’s historic Maritime Silk Road remains successful until this day.
Yancheng and unspoiled nature
Salt was one of the commodities (商品) that played a key role in the history of trade in Jiangsu, contributing to the wealth of the province. A major source was the tidal (潮汐的) salt flats of Yancheng, which literally means “salt city”. This remarkable landscape also plays host to some rare bird species like cranes, egrets, and spoonbill sandpipers.
Yangzhou and the spread of Buddhism
In the Jiangsu city of Yangzhou, a Tang-dynasty monk by the name of Jianzhen set sail to Japan to spread the teachings of Buddhism. Daming Temple, where Jianzhen lived, can still be visited today.
1. What made Jiangsu an Ancient Gateway to the Maritime Silk Road?| A．Its Buddhist art. | B．Its remarkable seascape. |
| C．Its wealth and power. | D．Its geographical advantages. |
| A．Nanjing. | B．Nantong. | C．Yancheng. | D．Yangzhou. |
| A．A geography magazine. | B．An academic report. |
| C．An economics book. | D．A travel blog. |
