1 . In a fascinating paper published last year in Science, a team led by Andreas Nieder of the University of Tubingen in Germany showed that crows —already known to be among the most intelligent of animals —are even more impressive than we knew. In fact, the evidence suggests that they are self-aware and, in an important sense, conscious (有意识的).
Crows had been observed previously to use tools to solve certain problems. Nieder’s experiment showed that the birds were actively evaluating how to solve a particular problem; in effect, they were thinking it over. This ability to consciously assess a problem was associated with the cerebral cortex (大脑皮层) in the brains of humans, which birds don’t have.
Other studies support the idea that the bird brain can, in principle, support the development of higher intelligence. It had been dismissed in the past due to the small size of birds’ brains. But recent research has shown that in birds, the neurons (神经元) are smaller and more lightly-packed, which makes sense to reduce weight and makes it easier lo fly. The total number of brain cell in crows (about 1.5 billion) is about the same as that in some monkey species. But because they are more tightly-packed, the communication between the neurons seems to be better, and the overall intelligence of crows may be closer to that of gorillas (猩猩).
This research has important consequences for our understanding of the evolution of higher intelligence. First, a cerebral cortex is not needed, and there are other means to achieve the same outcome. Second, either the evolution of consciousness is very ancient tracing back to the last common ancestor of mammals and birds about 320 million years ago, or, equally interesting, consciousness arose at least twice later on, independently in mammals and birds. Both options raise the possibility that higher intelligence on the planet may not necessarily be mammal or human-like, but could very well be birdlike.
1. What did Andreas Nieder’s team find out about crows?| A．They are more intelligent than other animals. |
| B．They have left people a very good impression. |
| C．They are much cleverer than previously thought. |
| D．They can use tools to solve certain problems. |
| A．The idea. | B．The bird brain. |
| C．The development. | D．Higher intelligence. |
| A．They have more tightly-packed brains. |
| B．They have a small number of brain cells. |
| C．Their brain neurons could communicate well. |
| D．Their brain cells are the same with the monkeys. |
| A．Cerebral cortexes are necessary for the evolution of higher intelligence. |
| B．Both mammals and birds got their intelligence from common ancestors. |
| C．Higher intelligence has already developed separately in different species. |
| D．Higher intelligence on the planet might be different from what we imagine. |
2 . The rechargeable lithium-ion (锂离子) battery market is worth more than ＄50 billion. Lithium-ion batteries, whose demand continues to go up day by day, are used in a wide range of electronic devices. They are made of four main components, and cathode (阴极) is one of them. The cathode’s active material type is what determines the capacity of a battery.
A recent study, led by Wang Yan, a material scientist of Worcester Polytechnic Institute, finds that lithium-ion batteries made with recycled cathodes work better than those with new cathodes.
“The battery industry is expected to grow sharply in the next decade. This high demand has led companies to go to extremes, like increasing deep-sea mining, to gain access to the minerals used in lithium-ion batteries,” Wang said. “Mining minerals will have environmental impacts. Recycling spent lithium-ion batteries offers a way out.”
But until now, the prospect of using recycled materials in lithium-ion batteries has some manufacturers (制造商) worrying that it could impact performance. Thus, lithium-ion batteries are still not widely recycled. Aware of decreasing resources and environmental impact, Wang and other researchers set out to find a way to make recycling lithium-ion batteries economically practical. Through experiments, they could recover more than 90% of the key metals from spent batteries. These recovered metals became the basis of the new recycled battery’s cathode’s active material.
In tests between Wang’s team’s recycled batteries and brand-new batteries of the same composition, the recycled batteries outperform the new ones in their ability to maintain capacity. It took 11,600 charge cycles for recycled cathode batteries to lose 30 percent of their original capacity. That was about 50 percent better than the 7,600 observed cycles for new cathode batteries, the team reported. Those thousands of extra cycles could translate into years of better battery performance, even after repeated use and recharging.
1. What can we learn about lithium-ion batteries from the first paragraph?| A．They are high in price. |
| B．They are in great demand. |
| C．They are limited in use. |
| D．They are simple in composition. |
| A．The target users of recycled batteries. |
| B．The ways to get minerals for batteries. |
| C．The major reasons for recycling batteries. |
| D．The complex process of recycling batteries. |
| A．Declining mineral resources. |
| B．Difficult recycling techniques. |
| C．Serious environmental problems. |
| D．Inefficient battery performance. |
| A．The battery industry is going to develop dramatically. |
| B．Recycling batteries reduces impact on the environment. |
| C．Scientists can recover key materials from spent batteries. |
| D．Recycled batteries outperform new ones in charging circles. |
3 . Michael Gonsalves, a chef of Golden Oak at Disney World, has a cuisine concept rooted in fresh, locally-sourced ingredients that originated from childhood harvesting produce from their family garden with his mom to eventually leading kitchens at Walt Disney World Resorts to employ a sustainable model.
“Truly the whole process starts with menu planning,” he said. Creating one dish leads into the creation of many more through the end-to-end use of products. As chefs, they are always searching for the best ingredients. It is then their focus to ensure they appreciate and respect all that go into each and every one of them. For example, they source chicken that is naturally grown and fed on a natural plant forward diet, no hormones (激素) or additives — that’s used in many ways throughout menus from a simple grilled chicken breast to bone soup. Nothing goes to waste.
When they do have waste, even if minimal, they shift it from landfills to transform it into compost (堆肥) that’s then used across the Walt Disney World property. They also support Second Harvest, a local community food bank where healthy produce, prepared, but not served, meals eatable for human consumption are donated. Disney also works with pig farmers when they can’t distribute foods past the point of safety for human consumption. Besides, wildlife reservations love to get the meat because tigers and wild cats can still eat that.
Their operations are “on a path to a sustainable zero waste kitchen of tomorrow” where chefs learn the full-life cycle of plants from seed to plate and gain a better understanding and appreciation for the product and their craft.
Golden Oak at Disney has millions of bees that produce up to 300 pounds of honey per year, plus those bees help with cross pollination (授粉) of their gardens on a daily basis. They advocate a culture that helps develop not only the quality of food, but an appreciation for nature.
1. Where did Michael Gonsalves’ idea about cuisine come from?| A．His mom’s suggestions. | B．His dream of becoming a chef. |
| C．His interest in delicious food. | D．His labor experience as a child. |
| A．They are grilled to eat. | B．They are used to the fullest. |
| C．They are divided into groups. | D．They are selected by quality. |
| A．Give examples about zero waste. |
| B．Introduce the unique habit of wildlife. |
| C．Stress the importance of natural food. |
| D．Explain the operation mode of the food bank. |
| A．Disney World:New Cuisine Road |
| B．Michael Gonsalves:Creative Chef |
| C．Michael Gonsalves:Advocate of Food Diversity |
| D．Disney World:Pioneer in Environmental Protection |
Undoubtedly, Mother Nature is always attractive to kids. In our childhood, how often did we turn a deaf ear to our parents’ advice? Very often! Thus, we landed ourselves in a situation where we greatly regretted our act of not having listened to the advice of the wise.
Such an unforgettable experience I had at the age of 7 gave me an invaluable lesson, after which I deeply understood why my gentle mother was repeating the boring suggestions and I would try to take her suggestions seriously.
In my childhood, I was so crazy about nature that even playing among the colorful flowers in our garden could make my day. Our house was next to the woods which had always stirred up(激起) great curiosity in me in wanting to find out what was within. Every time I saw fascinating butterflies dancing from the woods, my curiosity grew.
But my mother didn’t like me wandering off on my own and always ensured that I was within her sight. Even if she allowed me to explore the surrounding area on my own, it was only to be somewhere near the house. Being as curious as the cat, I always desired to explore the woods. It seemed as if my mother had understood my desire, so she had warmed me on lots of occasions never to enter the woods alone.
“Mom, can I go out and play in the garden?” I asked.
“Sure,” she would reply each time. “Kate, you can play in the garden but you must promise me one thing—only when I’m with you can you go into the woods. There are no cases of animal attacks on humans, but it’s still dangerous for a little kid like you. It’s too easy to get lost in the woods.”
“Sure, you’ve said that many times!” I answered without patience at her repeated reminders.
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。
However, curiosity got the better of me one morning.
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“Kate?” Behind the trees covered by the rays of the setting sun came my mother’s voice.
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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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6 . For the first time, United Nations members have agreed on a unified treaty (协议) to protect biodiversity on the high seas, representing a turning point for vast stretches of the planet where conservation has previously been held back by a confusing patchwork (拼凑)of laws.
The UN Convention on the Law of the Sea came into force in 1994, before marine biodiversity was a well-established concept. An updated framework to protect marine life in the regions outside national boundary waters, known as the high seas, had been in discussions for more than 20 years, but previous efforts to reach an agreement had repeatedly failed. The unified treaty, which applies to nearly half the planet’s surface, was reached late on Saturday.
UN Secretary-General Antonio Guterres welcomes the finalization of the text of the United Nations Ocean Treaty, his spokesman said on Saturday. “This breakthrough, which covers nearly two-thirds of the ocean, marks the culmination of nearly two decades of work and builds on the legacy (遗产)of the United Nations Convention on the Law of the Sea,” a statement said.
Nichola Clark, an ocean expert at the Pew Charitable Trusts called the long-awaited treaty text “a once-in-a-generation opportunity to protect the oceans-a major win for biodiversity”. The treaty will create a new body to manage the conservation of ocean life and establish marine-protected are-as on the high seas. Clark said that’s critical to achieving the UN Biodiversity Conference’s recent promise to protect 30 percent of the planet’s waters, for conservation. The treaty also establishes ground rules for conducting environmental impact assessments for commercial activities in the oceans.
Treaty negotiations were initially anticipated to conclude on Friday, but stretched through the night into Saturday. The making of the treaty represents “a historic and overwhelming success for international marine protection,” said Steffi Lemke, Germany’s environment minister.
1. What can we learn about the UN Convention on the Law of the Sea?| A．It is the basis of the UN Ocean Treaty. | B．It leads to a lot of controversy. |
| C．It has been discussed for over 20 years. | D．It is a complete failure. |
| A．Beginning. | B．Impact. | C．End. | D．Break. |
| A．Commercial ocean activities will be monitored. |
| B．Preservation of 30% of the planet will be ensured. |
| C．Protected areas on the high seas will be expanded. |
| D．An existing department will manage the conservation. |
| A．It takes tough and long negotiations. |
| B．The high seas are stressed for the first time. |
| C．Unity in protecting the high seas is achieved. |
| D．The concept of marine biodiversity is established. |
7 . One aspect of the clean-energy change will happen inside buildings. Many homes and businesses burn natural gas for heating and cooking. Natural gas gives out greenhouse gases as well as other pollutants that can harm health. Gas appliances (家用电器) can be replaced by electric versions and tap into clean electricity.
Panama Bartholomy is the director of the Building Decarbonization Coalition. His group, based in Petaluma, Calif., focuses on limiting gas emissions indoors. “We assume the electric grid (输电网) is getting cleaner over time, which it is. So, we want more and more of our heating to come from electricity.”
It’s much easier to make these types of transitions when governments recommend them, says Beth Miller. She is an ecologist and consultant with Good Company. Based in Eugene, Ore., it helps companies and communities reduce their carbon footprint. Some states are already taking steps to make these changes. On September 22, for instance, California decided it would ban the sale of gas-fired space heaters and water heaters by 2030.
After homes and businesses make the switch to electric alternatives, they will be more comfortable, says Bartholomy. They will be safer and cleaner, too, he adds. Instead of a gas furnace(燃气炉), an electric heat pump could both heat and cool a home. Gas heaters and stoves won’t be pumping pollution into a home’s air. And cooks will have even more control on a modern electric cooker than on a gas stove says Bartholomy.
Getting natural gas out of your home is probably the largest positive impact you can have for the planet, Bartholomy says. “We all need to fight for a livable climate. There is no way to meet our climate goals while still burning gas in buildings. For a livable future, we must take measures to stop burning natural gas, though we know we have a long way to go.” And the bonus: It now looks like doing that should also save people a lot of money.
1. What is the clean energy change?| A．Using natural gas for heating. | B．Using natural gas to boil water. |
| C．Using electric cookers at home. | D．Using electric lights inside buildings. |
| A．Promises. | B．Plans. | C．Changes. | D．Decisions. |
| A．Homes will be safer. | B．Gas stoves will be replaced soon. |
| C．Homes’ air will have more pollutants. | D．Cooks prefer to use traditional cookers. |
| A．Clean-energy Change | B．Electricity Use |
| C．Make Use of Natural Gas | D．Save Your Money at Home |
8 . Scientists have shown how plants can protect themselves against genetic (基因的) damage caused by environmental stresses. The growing tips of plant roots and shoots have an in-built mechanism (机制) that spells cell death if DNA damage is detected, avoiding passing on faulty DNA.
Plants have small populations of stem cells (干细胞) at the tips of their roots and shoots, which enable them to continuously grow and produce new tissues throughout their lifetime. These stem cells serve as ancestors for plant tissues and organs. However, any genetic faults present in the stem cells will continue to exist and be passed on permanently throughout the plant’s life, which could last thousands of years.
Given the critical role of stem cells and their exposure to potentially dangerous environments at the growing tips of roots and shoots, safeguards are necessary to prevent stem cell faults from becoming fixed. Researchers Nick Fulcher and Robert Sablowski, funded by the Biotechnology and Biological Sciences Research Council, aimed to uncover these protective mechanisms. Through experiments involving X-rays and chemicals, they discovered that stem cells were more sensitive to DNA damage compared to other cells.
When DNA damage occurs, the cells have the capacity to detect it and cause programmed cells to die, preventing the propagation of the damaged genetic code to the rest of the plant tissues. This process has similarities to the safeguard mechanism found in animal cells, which has been broadly studied due to its relevance in preventing cancer.
The identification of a similar protective system in plants is of great interest in the field of plant development. It also helps scientists develop plants that can better handle environmental stress. So knowledge of how plants deal with these stresses is of fundamental significance to agricultural science’s response to climate change.
1. What is the function of the in-built mechanism in plants?| A．To produce more roots and shoots. | B．To increase the overall lifetime of the plant. |
| C．To enhance plant growth and nutrient intake. | D．To stop genetic faults in stem cells passing on. |
| A．They are relatively abundant in quantity. | B．They are resistant to environmental stresses. |
| C．They make quick response to DNA damage. | D．They have the ability to repair damaged DNA. |
| A．Spread. | B．Change. | C．Existence. | D．Self-repair. |
| A．The way of dealing with climate change on the earth. |
| B．The significance of identifying the protective system in plants. |
| C．The method of ensuring plant survival under environmental stress. |
| D．The urgency of developing plants that can handle environmental stress. |
9 . Giant pandas are among the most lovable animals alive today. Unlike their relatives, such as the polar bear, pandas don’t eat meat but survive on a diet of only bamboo. So why and how have pandas abandoned their taste for meat to pick up a vegetarian diet?
Pandas today don’t eat meat. However, they’ve kept much of their meat-eating adaptations from times past. Their digestive systems have not changed much from their meat-eating days. Out of the huge 12.5 kg of bamboo they eat in a single day, only about 17% of it is digested. To survive, pandas eat large amounts of bamboo while having a low-metabolic (新陈代谢的)，lazy lifestyle to make up for the poor energy return.
The giant panda’s shift to a vegetarian diet is in line with the inactivation of a specific gene-Taslrl, which provides them with the ability to taste certain amino acids (氨基酸) abundant in meat. Its inactivation in pandas would lead to their dietary change.
Pandas have evolved to a great degree to cope with their relatively recent bamboo-eating lifestyle. Pandas must seize long and thin pieces of bamboo shoots. To assist with this, they have developed a long “fake-thumb” (伪拇指). So giant pandas have six fingers in each paw which provides better support for them to seize object such as bamboo in one paw quickly. Researchers have found that the surface of the panda’s tongue is different. While other bears and many meat-eating animals have smooth tongues, pandas have evolved tiny projections on the surface of their tongues that serve to file down food. This is especially useful for pandas as they remove the outer cover of bamboo.
Time will tell if pandas will adapt and survive, go back to eating meat, or disappear in the wild. Whatever the future holds, we can be grateful that, for the time being, we get to share our planet with these adorable animals.
1. Why are the numbers mentioned in paragraph 2?| A．To illustrate the variety of food. |
| B．To represent the evolutionary rule of pandas. |
| C．To describe the changes of living environment. |
| D．To show the ineffectiveness of digestive system. |
| A．The low-metabolic ability. |
| B．The amino acids in meat. |
| C．The Taslrl gene’s inactivation. |
| D．The supplies of bamboo. |
| A．Seizing bamboo shoots. |
| B．The low energy return. |
| C．Developing more fingers. |
| D．The vegetarian diet. |
| A．The preference for bamboo. |
| B．The evolutionary feature in eating. |
| C．The unique lifestyle. |
| D．The special appearance. |
The first-ever online marketplace for allotments(菜地), AllotMe, has unveiled plans for rapid
Known as the “Airbnb for Gardens”, AllotMe has grown in popularity, with more than 100 hosts
“AllotMe
Conor adds that AllotMents 2.0 will focus on encouraging hosts to think about how the platform can enable
