Diets have changed in China — and so too has its top crop. Since 2011, the country
A taste for meat is
According to the World Bank, China accounts for about 30 percent of total
2 . Let's take a minute to think about the water we use. The human body is 60% water and we need to drink lots of water to be healthy. When we are thirsty we just go to the kitchen and fill a glass with clean water.
The truth is that we are lucky enough to have clean water whenever we want，but this is not the case for many people around the world.
| A．We use water indirectly too. |
| B．Every system in our body depends on water to function. |
| C．It is to inspire people to learn more about water-related problems |
| D．If children walk many hours a day to get water，they can't go to school. |
| E．Did you know that around 750 million people do not have clean water to drink？ |
| F．In 1993 the United Nations decided that March 22nd is the World Day for Water. |
| G．In this way，they know how it feels to walk a long distance carrying heavy bottles. |
On a hot September afternoon, Peter and his friend Isabel were on their way to the library. When they passed by Tubman park, Isabel suggested cutting through it to get to the library. As they entered the park, the sight of the swings (秋千) and the merry-go-round brought back a flood of memories of their childhood spent there. But now everything looked so old, sad, and dirty. Litter lay on the ground next to an overflowing trash bin. There were still young schoolchildren playing there but they had to avoid the trash that littered the playground. A little boy told them that the city took the other trash cans away and the remaining one never got emptied often.
As they headed toward the library, the two high school students wrinkled their forehead. In the library, they encountered Mrs. Evans, their kind-hearted fifth-grade teacher, retired yet still passionate. Mrs. Evans listened as Isabel and Peter eagerly explained what they’d seen. Finally, she recommended them to go to the City Hall to voice their concerns.
The next day, Isabel and Peter went into the building of the City Hall but were met with an impatient officer. They were informed that the city couldn’t help with their problem due to a tight budget. Discouraged, they left and turned to Mrs. Evans for help.
Under her guidance, they decided to ask Go Green, a non-profit organization whose goal is to protect the environment, for help. “This group is good at raising money for projects just like yours, ” said Mrs. Evans. She promised to arrange them to present their ideas to Go Green. Hearing this, their face lit up.
Two main tasks remained ahead: researching ways to clean up the park and preparing a convincing presentation. As Isabel was good at researching while Peter always had a talent for speaking, they cooperated quite well. Isabel learned from a science magazine that a new type of trash bin can squeeze the trash down without being emptied often, which saves time, money, and energy. Based on this, Peter practiced his presentation over and over again.
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。
A week later, Peter stood nervously at the back of the hall where Go Green was meeting.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________After the meeting, Isabel excitedly told Peter the good news.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4 . People have come to understand the enormous impacts-beneficial as well as harmful- plastics have on human lives and the environment. As polymer (聚合物) scientists committed to inventing sustainable solutions for real-world problems, we set out to tackle the issue of plastic waste by rethinking the way polymers are designed so we could make plastics with recyclability built right in.
Everyday items including milk jug, grocery bags, and takeout containers are made from a class of polymers called polyolefins. These plastics are really durable (耐用的) because the chemical bonds in those polymers are extremely stable. In a world set up for disposable (一次性的) items, durability is no longer a design feature but rather a design drawback. Imagine if half the plastics used today were recyclable through twice as many processes as they are now. Also conventional recycling requires careful sorting of all the collected materials, which can be challenging with so many different plastics. For example, separating paper from metal doesn’t require complex technology, but sorting a container from a milk jug of a different polyolefin is difficult to do without the occasional mistake.
In a study published in Science in October 2023, we described a series of polymers with only two building blocks-one soft polymer and one hard polymer-that behave like polyolefins but could be chemically recycled. Connecting two different polymers multiple times until they form a single, long molecule (分子) creates what’s called a multiblock polymer. By changing how much of each polymer type goes into the multiblock polymer, our team produced a wide range of materials with properties that covered all polyolefin types.
Using the same strategy but by adding hydrogen, we could disconnect the polymers back into their building blocks and easily separate them to use again. When we made new polymers out of these recycled plastics, they performed just as well as the original materials even after several rounds of chemical recycling. So we were able to create materials with similar properties of the plastics the world relies on. We believe this work is a step toward more sustainable plastics.
1. What is paragraph 2 mainly about concerning plastics?| A．Their multiple uses. | B．Their chemical properties. |
| C．Their recycling challenges. | D．Their classification criteria. |
| A．mixing building blocks with long molecules |
| B．integrating chemicals into the two polymers |
| C．combining two different multiblock polymers |
| D．adjusting the percentage of the two polymers |
| A．They are made from sustainable materials. |
| B．They can be recycled by adding hydrogen. |
| C．Their reliability outperforms traditional plastics. |
| D．Their properties change with rounds of recycling. |
| A．Designing for Recycling | B．Classifying Plastic Waste |
| C．Replace Plastics with Polymers | D．Technology Creates the Future |
Sam was a junior high school student. He lived in a community in Charlotte and usually had little exposure to country life. So much of what he knew about plants came from text-books. Sam was a kind-hearted person. He longed for a chance to explore nature and he wanted to do his part to beautify the world.
Finally, the opportunity came. On Arbor Day (植树节), his class organized a trip to a local village to plant trees. Sam was excited about it and couldn’t wait to tell his mom the good news. So the next day, Sam and his mom went to buy some tools for planting trees, including a shovel(铲), a bucket, gloves and so on.
On the day of the event, Sam and his classmates arrived early at the starting point. It was a beautiful day and everyone looked particularly happy. With the tools in hand, Sam got into the bus with everyone else and headed off to their destination.
As soon as they reached the village, all the students were divided into three teams by their teacher. One team was responsible for planting the trees, one team for shovelling the soil and one team for watering the trees. At the teacher’s command, everyone started to do their job.
However, it was the first time that many of the students had taken part in planting trees, so they had no idea about how to start. Of course, Sam was one of them. Fortunately, their teacher was a middle-aged man from the countryside who had some knowledge of planting trees. In order to set an example to the students, the teacher started to plant trees himself. After watching the teacher plant the trees, everyone also became busy. Before long, they planted hundreds of trees. Sam watched very carefully, not wanting to miss any of the details. Finally, Sam learned how to plant trees by himself and felt happy.
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。
A few days later, a storm damaged some young trees in the community.
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________The neighbours praised Sam for what he had done.
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________6 . 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. |
7 . Whenever I order food for delivery, I play a little game to guess how many sets of tableware(餐具)the restaurant will provide with my meal. Sometimes restaurants will throw in two, three or four sets for just one order. But I rarely need any tableware at all, and the waste goes into the trash or collects dust in a kitchen drawer.
Researchers working with Chinese technology group Alibaba tried a simple approach to this problem. Instead of just wastefully doling out tableware, the company required food-delivery customers in some cities in China to pick how many sets of tableware they wanted to receive.The default (默认设置)was set at zero. The result, published today in the journal Science, was a 638% increase in the share of no-tableware orders. If applied across China, researchers found, the approach would save nearly 22 billion sets of plastic tableware. The study doesn’t cover carbon emissions, but it’s safe to say that the impact would be significant. It struck me as a useful reminder of the many low-hanging fruits across the economy that can cut waste, and emissions.
Nudging its customers cost Alibaba nothing more than a few hours of software engineering time and the impact it brought was immense. The concept of nudging comes from the field of behavioral economics known as nudge theory. It suggests that a slight action can encourage good human behavior without the need for policies that limit choice or economic punishment that raises the cost of bad behavior. To nudge customers to eat better, for example, a restaurant might organize its menu by listing healthy options first and bury unhealthy ones at the bottom. More recently, some big companies like Google have also begun to use nudges to advance climate objectives.
Behavioral economics broadly, and nudges more specifically, aren’t without controversy. Some might think it assigns consumers responsibility for addressing environmental challenges. But there is another way to look at it. In the absence of necessary policy—and policy is needed一companies can help encourage a widespread shift of consumer behavior.
And all of that behavioral change can add up. The International Energy Agency found in 2021 that small behavioral changes in energy consumption such as walking instead of driving and adjusting the thermostat could in total shave off 4% of global emissions. The more that companies can do to facilitate such changes, the better.
1. What did Alibaba do with tableware waste?| A．It stopped restaurants from handing out tableware. |
| B．It withdrew unused tableware from customers. |
| C．It updated the food -delivery device regularly. |
| D．It allowed picking tableware at customers’ demand. |
| A．Easily accessible things. | B．Fast increasing orders. |
| C．Exceptionally tough choices. | D．Widely accepted strategies. |
| A．It brings about economic loss. |
| B．It results from consumption policies. |
| C．It indicates small action changes behaviour. |
| D．It implies bad behaviour impacts economy. |
| A．Nudge theory affects behaviors. |
| B．Good behaviors boost economy. |
| C．Nudging helps build a greener world. |
| D．Behavioral economics benefits customers. |
8 . Open an app at your smart phone and scan the code bar on the garbage can. When you throw garbage into the garbage can, it will show the weight of the garbage and the points you can get from doing so.
In some cities, a variety of multifunctional smart garbage cans are being put into use. In Beijing, for example, a smart garbage can is equipped with an LED screen, which not only shows national policies on garbage classification but also shows the correct steps for garbage sorting. It can also calculate the weight of the garbage and the accumulated points one can get. They can be traded for some articles of daily use.
Garbage disposal is a small issue that involves everybody each day. However, it is also a big issue.
| A．Garbage sorting has been a new fashion. |
| B．Another kind of garbage can is even smarter. |
| C．It is no wonder that residents cheered for their presence. |
| D．Such a way of handling garbage has appeared in some cities. |
| E．It will affect China’s transformation towards green development. |
| F．Over 200 million tons of garbage is produced each year in some cities. |
| G．The good habit of garbage classification can improve the living environment. |
1. 专刊的意义；
2. 专刊的内容；
3. 寄予的希望。
注意：
1.写作词数应为80左右；
2. 请按如下格式在答题卷的相应位置作答。
Dear Readers,
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Warm regards,
Li Hua
Editor-in-chief
10 . In the rich countries of the West, the electric vehicle revolution is well underway. Climate-conscious consumers drive Teslas or Polestars for reasons of morality and fashion. Poorer countries are also experiencing a wave of electrified trend. In Bangladesh, electric three-wheeler taxis, known as tuk-tuks, are rapidly replacing gas-powered ones on the streets. Such electric vehicles are climate friendly, cost effective, and help reduce air pollution.
Yet a glance under the hood (引擎盖) of these vehicles reveals a poisonous secret: each tuk-tuk runs on five massive lead-acid batteries, containing almost 300 pounds of lead in total. Every year and a half or so, when those batteries need to be replaced and recycled, about 60 pounds of lead leak into the environment. Battery recycling, often at small-scale unregulated factories, is a highly profitable but deadly business.
Lead is dangerous, and any exposure to it is harmful to human health. Lead that has entered the environment hurts people on an extraordinary scale. The numerous ways lead enters air, water, soil, and homes across the developing world — and the enormous damage it does to human health, wealth, and welfare — causes one of the biggest environmental crises in the world yet receives little attention.
The World Bank estimates that lead kills 5. 5 million people per year, which would make it a bigger global killer than AIDS, malaria, diabetes, and road traffic deaths combined. On top of the shocking deaths, the social burden of lead poisoning is extraordinary, as is its contribution to global inequality — our research on the cognitive effects of lead poisoning suggests that it may explain about one-fifth of the educational achievement gap between rich and poor countries.
But unlike many challenges faced by developing countries, lead poisoning is a problem that is fixable with some attention and a relatively modest financial investment. Better monitoring, research, and rules can help protect children all over the world from the dreadful effects of lead poisoning and reduce the massive global costs it brings.
1. How does the author describe the lead problem in paragraph 2?| A．By making a comparison. | B．By analyzing hidden causes. |
| C．By listing convincing numbers. | D．By explaining its working principle. |
| A．Lead enters rich countries in various ways. |
| B．Lead poisoning may make poor societies poorer. |
| C．Exposure to lead doesn’t necessarily harm someone. |
| D．Lead leaking has caused great panic in both countries. |
| A．Fixing these used batteries. | B．Putting certain effort and money. |
| C．Prohibiting the illegal use of lead. | D．Reducing the cost of recycling lead. |
| A．The Impacts of Lead Poisoning on Human Health |
| B．The Outcomes of Using Electric Vehicles |
| C．The Ways to Solve Lead Problem |
| D．The Global Lead Poisoning Crisis |
