1. What is the aim of the campaign?
A.To remind people of Earth Day. |
B.To encourage people to reduce garbage. |
C.To warn people of the bad effects of pollution. |
A.Planting trees. | B.Designing posters. | C.Collecting garbage. |
A.Paint paper. | B.Stop driving cars. | C.Decorate classrooms. |
A.Absurd. | B.Hollow. | C.Practical. |
1. 保护野生动物的重要性;
2. 提出合理建议(至少两点);
3. 发出呼吁。
注意:1. 词数80左右;
2. 可适当增加细节,以使行文连贯。
Protecting the Wild Animals
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3 . 400 million tons of plastic are generated annually, most of which comes from single-use plastic While countries are making progress in reducing this waste through paper bags and straws, there are still applications where the properties of plastic are necessary.
Transparent (透明的) wood is an alternative for such applications and is highly preferred since it prevents the harm of petroleum-derived (石油衍生的) plastic products. German scientist Siegfried Fink first created transparent wood in the year 1992, and over the past three decades it has been significantly improved by other researchers as well.
In its natural form, wood is not transparent. However, researchers have found that removing lignin, a naturally occurring biopolymer that provides structural support for the plant tissue, can make it transparent. To do so, the wood is soaked in a warm solution consisting of multiple chemicals, followed by boiling it in another solution. This removes the lignin completely and turns the wood white. However, the space that was occupied by lignin needs to be filled up to maintain structural integrity. This process is done by using a resin (树脂) at a temperature of 185 Fahrenheit (85℃).
The final product can have as much as 90 transparency, and it doesn’t break easily. More importantly, it is more biodegradable than glass or plastic.
While transparent wood isn’t commercial yet, it has been employed in a wide variety of applications ranging from construction to energy storage, making flexible electronics and packaging.
The researchers at the Indian Institute of Technology ( IIT) conducted a life-cycle analysis (LCA) of transparent wood to determine the environmental impact of its production and end-of-life (EOL) cycle. The study found that using hydrogen peroxide for delignification, followed by using epoxy for infiltration, was the most eco-friendly. When scaled up for industrial production, the former method would lower electricity consumption by as much as 98. 8 percent.
EOL analysis showed that transparent wood had a reduced ecological impact compared to polyethylene (聚乙烯), paving the way for it to be commercially adapted to replace the petroleum-based material.
1. Why is transparent wood preferred compared to plastic?A.It is easier to make. | B.It is environmentally friendly. |
C.It can be used longer. | D.It can be used repeatedly. |
A.The natural form of wood. | B.The importance of chemicals. |
C.How transparent wood is made. | D.How lignin keeps wood strong. |
A.It can be recycled. |
B.It will replace plastic soon. |
C.The most eco-friendly way to produce it. |
D.Potential damage caused by it to the environment. |
A.Promising. | B.Difficult. | C.Profitable. | D.Uncertain. |
4 . In the northernmost edge of Colombia sits the coastal town of Acandí. Access to the town is only by water or air; there is no road that leads there. The residents there are faced with the struggles of balancing livelihoods while protecting biodiversity.
In the past, traditional community fishing methods, passed down by the elders, focused on the reasonable fishing and management of resources. However, the introduction of large-scale trawling vessels(拖网渔船) decades ago gradually depleted the area’s fishing resources, leading to damage to marine(海洋的) life seriously.
Jesús Antonio Julio Cuestas, who serves in the region’s conservation and management of marine resources, stresses the bad impact of these developments and calls for new fishing techniques. “Fishing and conservation co-exist as long as we have good management practices and reasonable use of our fishing resources,” says Cuestas. He and other officials actively monitor fishing activities in Acandí. Each morning, they visit the fish markets to gather data on fishery resources—including prices and sizes—to monitor the state of the local fishing industry.
Along with Cuestas, the fishers work to reduce their impact on the marine ecosystem. By changing fishing methods and adopting new practices, they aim for a more balanced approach to fishing. “This year the local fishermen have not used the trawl net s that were causing the death of the leatherback sea turtles,” explains Cuestas proudly. Changes include the efforts of boats to protect the seagrass that serves as feeding grounds for marine life and an end to fishers throwing net s where turtles lay their eggs.
This marine reserve in Acandí, Cuestas believes, is their greatest treasure. He attaches great importance to working together with local residents to improve the quality of life while preserving the marine ecosystem. By doing so, he imagines a picture where individuals from the fishing community can pursue various careers, such as engineers or lawyers, proudly stating that they are the products of the fishing tradition in Acandí.
1. What does the underlined word “depleted” in paragraph 2 mean?A.Reused. | B.Restored. |
C.Explored. | D.Reduced. |
A.To cut down on the costs of fishing. |
B.To improve the income of local residents. |
C.To promote the well-being of marine wildlife. |
D.To spread traditional community fishing methods. |
A.The aim of the changes to fishing methods. |
B.The efforts to preserve marine ecosystem. |
C.The results the trawl net s have brought about. |
D.The impact of fishers on the local environment. |
A.Confident. | B.Uncaring. |
C.Concerned. | D.Doubtful. |
With more and more scientists saying we no longer have a climate problem but a climate emergency, the call for all hands to be part
In 2014, after attending one of Al Gore’s Climate Reality training workshops, Paul Severance, a member of Elders Action Network(EAN), started ECA, which
ECA’s mission is to reach out to older individuals and let them join, so they can use their expertise, experience and knowledge
6 . In recent years, studies have suggested how the bisphenol A (BPA) in some food-packaging plastics has been linked to various health problems including heart disease and developmental difficulties in children. Scientists are thus developing a more harmless alternative, and it’s made from tomato waste which would otherwise be got rid of.
However, BPA is still widely used in the plastic coatings which are applied to the inside of metal food packaging such as cans. These smooth waterproof coatings help protect the metal from corrosion (腐蚀), plus they keep the food from sticking to the inside of the container.
Building on previous studies, an international team has researched a type of agricultural waste known as tomato pomace. This material typically consists of tomato skins, seeds and stems, which are left over after the fruits have been processed for use in foods such as sauces or juices. Ordinarily, the pomace is simply dumped in a landfill, burned, or at best composted. It may also be used in animal feed, although it doesn’t have much nutritional value.
The scientists started by drying tomato pomace — first in the sun for three days, then in a 60℃ oven for 16 hours — after which they grounded it into a powder. That powder was subsequently mixed with a sodium hydroxide solution (溶液), which was then heated at 100℃ for four hours. After repeatedly filtering that solution to remove the sodium hydroxide, the researchers were left a lipid. That lipid was then mixed into an ethyl alcohol solution which was sprayed onto samples of some metal. Once the spray had dried and the samples had been heated in a 200℃ oven for 10 to 60 minutes, the result was a polymerized lacquer coating which proved to be very effective at protecting the metal.
The scientists now plan on testing the coating on actual cans. “We would take tomato sauce, and other foods that are usually sold in cans, and we would sterilize them, put them in tins and check if they withstand real conditions,” said a scientist.
1. Which of the following is the most likely to use the plastic coating?A.A pot full of water. |
B.A cup filled with coffee. |
C.A tin containing apple juice. |
D.An iron box stuffed with packaged food. |
A.It’s used as animal’s food with rich nutrition. |
B.It has been used in the plastic coatings. |
C.People use it to make sauce or juice. |
D.People usually treat it in many ways. |
A.How the new coating is created. | B.Why heating is important. |
C.Why high temperature is needed. | D.What other materials are included. |
A.To present a scientific study. | B.To introduce a new material. |
C.To show a complex process. | D.To teach an actual test. |
7 . Researchers and environmentalists have been pushing for clean energy, as well, contending with the rising threat of climate change. An increasingly researched renewable resource is called Ocean Thermal Energy Conversion (OTEC), in which the sea’s temperature variations are used to produce power. On the surface of the ocean, the temperatures are much warmer compared to the seafloor. It gets considerably colder the deeper you go because the sunlight cannot reach the bottom. These temperature differences are most noticeable in the summer when the sun is present for a majority of the hours of the day. To put it simply, OTEC uses a series of pipes that take the cooler water out in the depths of the ocean. The warm water on the ocean’s surface helps heat the cool water, which then vaporizes (蒸发) a fluid, and as a result, turns a turbine (涡轮机) to produce electricity.
Three types of ocean heat renewable energy systems are being developed and researched. An OTEC closed-cycle is perhaps the most common and well-researched, consisting of a condenser (冷凝器), evaporator, pumps, turbine and generator. There are also open systems and hybrid systems.
Systems work by pumping the warmer surface water through an evaporator containing a working fluid with a low boiling point, such as ammonia. Once the fluid vaporizes, it is used to drive a turbine and generator. From there, the vaporized fluid turns back into a liquid through a condenser, cooled by the cold, deep ocean water that pumps up from the depths. The OTEC systems that use seawater can use condensation to make water without salt.
OTEC systems need to place technology about 1 kilometer below the surface of the water. The cold water intake pipe is in the deepest area, and the piping where warm water enters is above sea level. The pumps are needed to move warm water into the system, and a heat exchanger is required to evaporate the fluid. Condensers condense the steam produced in the system, and a marker keeps the entire system afloat.
Energy is essential for almost all human activities. If the world wants to avoid an energy crisis, people need to begin relying on renewable energy. Fortunately, the three types of OTEC can provide energy for large populations.
1. What does OTEC technology depend mainly on to generate renewable power?A.The depths of the ocean. | B.The vast surface of the ocean. |
C.Seawater’s temperature differences. | D.The hot temperature in the summer. |
A.The principle of OTEC technology. |
B.The progress of OTEC technology. |
C.The importance of the renewable energy systems. |
D.The differences among the renewable energy systems. |
A.The heat exchanger can produce power. |
B.The cold water pipe is in the depths of the sea. |
C.The deeper in the ocean, the better the technology is. |
D.The warm water needs evaporating in a condenser. |
A.The energy crisis in the future. |
B.The bad influence of human activities. |
C.The benefits of Ocean Thermal Energy Conversion. |
D.The popularity of other renewable energy sources. |
8 . The following are some unsung heroes bringing a unique viewpoint and approach to the global challenge of environmental conservation.
Greta Thunberg
Greta Thunberg, a young environmental voice from Sweden, has not only caught global attention but transformed it into a powerful movement. Through her “Fridays for Future” initiative, Greta encourages students worldwide to advocate for climate action, calling for the urgency of addressing climate change. Her touching speeches at international forums, coupled with a refusal to accept inaction have made her a symbol of youth-driven environmental advocacy.
Wangari Maathai
The late Nobel Peace Prize winner from Kenya left a permanent mark through her pioneering Green Belt Movement. This grassroots initiative empowered communities, particularly women, to fight against deforestation through tree planting. Maathai’s legacy lives on in the millions of trees planted across Africa, reflecting her belief that sustainable development starts at the grassroots level, with communities actively engaged in preserving their environment
Isaton Ceesay
Isatou Ceesay, an environmentalist from The Gambia, has emerged as a pioneer in the fight against plastic pollution. Recognizing the detrimental impact of plastic waste on local communities and ecosystems, Ceesay founded the “Women’s Initiative Gambia”. Through creative recycling initiatives, she empowers women to repurpose plastic waste, promoting economic independence within communities.
Ma Jun
Ma Jun began his career as an investigative journalist, but has quickly risen to become an outstanding Chinese environmentalist, known for his pioneering work in water pollution control. As the founder of the Institute of Public and Environmental Affairs(IPE), Ma Jun developed the China Water Pollution Map, an interactive online tool that tracks water quality data and exposes pollution sources across the country.
1. What group of peoples “Friday’s for Future” for?A.Women. | B.The grassroots. | C.Young students. | D.Poor farmers. |
A.Preserving trees. | B.Community cooperation. |
C.Plastic pollution. | D.Addressing climate change. |
A.Greta Thunberg. | B.Wangari Maathai. | C.Isatou Ceesay. | D.Ma Jun. |
One of my favourite things about spring is the arrival of different species of birds. My grandfather was a bird lover, and I picked up the birdwatching hobby at a young age, thanks to his influence. My husband John and I found it a relaxing way to enjoy nature; we like birdwatching when we go camping or hiking. Plus, I have a great love of nature photography, so when we sit out in the backyard of our home, I always have my digital camera with me. John is an artist, and he often paints the birds I photograph.
Usually when the yellow warblers (莺) come back from the south in springtime, they pass us by; we don’t typically see them hanging around our home. But not on this particular sunny day in spring. As soon as I finished my workday, I put on a light jacket and went out to the backyard to relax in my favourite way: by watching the birds.
While taking some pictures of cardinals (红衣凤头鸟) and chickadees (北美山雀) at one of our feeders, I looked up and noticed this yellow warbler in our maple tree. The tree had recently begun to bud, and the bird’s yellow feathers looked striking against the yellow blooms, so I took this photo. Our backyard has a variety of trees and between my husband and me, we’ve documented almost 40 different species of birds. I’ve photographed most of them, but some can be a bit camera shy so I also keep a written list of what we see. Our more common visitors are cardinals, chickadees, hummingbirds and various sparrows.
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。
One day, I was watching the yellow warbler jumping among trees when a snake crawled towards it.
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At this time, I saw many small stones in the backyard.
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10 . New research from the University of Portsmouth has shown a marked increase in shipping in the North East Atlantic. Scientists now warn that more monitoring is required to help protect sea life.
Researchers at the University of Ponsmouth have discovered that rates (率) of shipping in the North East Atlantic area rose by 34 per cent in a five-year period. The research is the first detailed survey of shipping activity in the North East Atlantic. Researchers used data from over 530 million vessel (船) positions recorded by Automatic Identification System(AIS). They looked at the change in shipping between 2013 and 2017 across ten different vessel types. In total the study area covered 1.1 million km², including waters off Belgium, Denmark, France, Germany,Iceland, Ireland, The Netherlands, Norway, Portugal. Spain, and the UK.
Lead author, James Robbins said: “This change is likely to put more pressure on the marine (海洋的) environment, and may influence the protection of at-risk species. Renewed monitoring effort is needed to make sure that protective measures are enough to save species under threat in a changing environment.”
Some of the greatest shipping increases were found in areas close to the Spanish coast. The Espacio Marino de la Costa da Morte saw a rise of 413 percent in vessel activity. It is an area used to protect seabirds.
Dr. Sarah Marley, Visiting Researcher at the University of Portsmouth, said: “Shipping is the most widespread human activity in our oceans, carrying a set of threats-from unnoticeable effects like underwater noise pollution to serious results when ships hit whales.”
Professor Alex Ford. from the University’s Institute of Marine Sciences, said: “Given the well-documented effects that shipping can have on the marine environment, it is necessary that this situation continues to be monitored-particularly in areas used to protect vulnerable (脆弱的) species which may already be under pressure.”
1. What can we say about the new research?A.It started in 2013. | B.It is the first of its kind. |
C.It was carried out by AIS. | D.It covers the whole Atlantic. |
A.Rapid population growth. |
B.Rising global temperatures. |
C.The huge increase in shipping. |
D.The disappearance of marine life. |
A.Shipping plays an important role in the local economy. |
B.Shipping can be a danger to the marine environment. |
C.Noise pollution is closely related to human activity. |
D.Marine areas should be monitored more carefully. |
A.New waterways across the Atlantic |
B.The shipping industry in the North East Atlantic |
C.New research opens windows into life under the water |
D.Sea life needs better protection from an increase in shipping |