1 . When John Todd was a child, he loved to explore the woods around his house, observing how nature solved problems. A dirty stream, for example, often became clear after flowing through plants and along rocks where tiny creatures lived. When he got older, John started to wonder if this process could be used to clean up the messes people were making.
After studying agriculture, medicine, and fisheries in college, John went back to observing nature and asking questions. Why can certain plants trap harmful bacteria (细菌)? Which kinds of fish can eat cancer-causing chemicals? With the right combination of animals and plants, he figured, maybe he could clean up waste the way nature did. He decided to build what he would later call an eco-machine.
The task John set for himself was to remove harmful substances from some sludge (污泥). First, he constructed a series of clear fiberglass tanks connected to each other. Then he went around to local ponds and streams and brought back some plants and animals. He placed them in the tanks and waited. Little by little, these different kinds of life got used to one another and formed their own ecosystem. After a few weeks, John added the sludge.
He was amazed at the results. The plants and animals in the eco-machine took the sludge as food and began to eat it! Within weeks, it had all been digested, and all that was left was pure water.
Over the years, John has taken on many big jobs. He developed a greenhouse — like facility that treated sewage (污水) from 1,600 homes in South Burlington. He also designed an eco-machine to clean canal water in Fuzhou, a city in southeast China.
“Ecological design” is the name John gives to what he does. “Life on Earth is kind of a box of spare parts for the inventor,” he says. “You put organisms in new relationships and observe what’s happening. Then you let these new systems develop their own ways to self-repair.”
1. What can we learn about John from the first two paragraphs?| A．He was fond of traveling. | B．He enjoyed being alone. |
| C．He had an inquiring mind. | D．He longed to be a doctor. |
| A．To feed the animals. | B．To build an ecosystem. |
| C．To protect the plants. | D．To test the eco-machine. |
| A．To review John’s research plans. | B．To show an application of John’s idea. |
| C．To compare John’s different jobs. | D．To erase doubts about John’s invention. |
| A．Nature can repair itself. | B．Organisms need water to survive. |
| C．Life on Earth is diverse. | D．Most tiny creatures live in groups. |
2 . Goffin’s cockatoos, a kind of small parrot native to Australasia, have been shown to have similar shape-recognition abilities to a human two-year-old. Though not known to use tools in the wild, the birds have proved skilful at tool use while kept in the cage. In a recent experiment, cockatoos were presented with a box with a nut inside it. The clear front of the box had a “keyhole” in a geometric shape, and the birds were given five differently shaped “keys” to choose from. Inserting the correct “key” would let out the nut.
In humans, babies can put a round shape in a round hole from around one year of age, but it will be another year before they are able to do the same with less symmetrical (对称的) shapes. This ability to recognize that a shape will need to be turned in a specific direction before it will fit is called an “allocentric frame of reference”. In the experiment, Goffin’s cockatoos were able to select the right tool for the job, in most cases, by visual recognition alone. Where trial-and-error was used, the cockatoos did better than monkeys in similar tests. This indicates that Goffin’s cockatoos do indeed possess an allocentric frame of reference when moving objects in space, similar to two-year-old babies.
The next step, according to the researchers, is to try and work out whether the cockatoos rely entirely on visual clues (线索), or also use a sense of touch in making their shape selections.
1. How did the cockatoos get the nut from the box in the experiment?| A．By following instructions. | B．By using a tool. |
| C．By turning the box around. | D．By removing the lid. |
| A．Using a key to unlock a door. | B．Telling parrots from other birds. |
| C．Putting a ball into a round hole. | D．Grouping toys of different shapes. |
| A．How far they are able to see. |
| B．How they track moving objects. |
| C．Whether they are smarter than monkeys. |
| D．Whether they use a sense of touch in the test. |
| A．Cockatoos: Quick Error Checkers | B．Cockatoos: Independent Learners |
| C．Cockatoos: Clever Signal-Readers | D．Cockatoos: Skillful Shape-Sorters |
Ecotourism is commonly regarded as low impact (影响) travel to undisturbed places. It is different from traditional tourism because it allows the traveler to become
Ecotourism has
Due to
·Minimize the impact of
·Build respect for and awareness of the environment and cultural practices.
·Provide
·Make sure that the tourism provides experiences for both the visitors and the hosts.
Komodo National Park, officially recognized in 1980, is popular for ecotourism because of its unique biodiversity.
My husband and I enjoy seeing life through the eyes of our children. It’s amazing to watch as they discover their world.
While we were outdoors last summer enjoying the sunshine, our oldest daughter, Kaytlin, called me to the doorway. Beneath the steps was a baby red squirrel.
We watched it from a distance, not wanting to disturb it or scare off its mother. But after a long wait—and looking all around our house for signs of a nest or a mother—we realized the tiny squirrel was lost.
Shaking terribly, he was weak, thin, and hungry. We tried to find an expert to help, but the Inland Fisheries and Wildlife website showed that there were no wildlife experts in our area. After some quick research, we concluded that the best way to give the squirrel a fighting chance was to care for him ourselves. So a trip to the local store for milk and supplies was in order. More research taught us how much to feed him, how to estimate his age, how and when to wean (断奶) him, and that we should let him go as soon as he could survive on his own.
Our daughters and I took turns in feeding “Squirt.” Kaytlin took on the most responsibility. She taught him to eat from a bottle, and she woke in the night for his feeds.
To our relief, Squirt soon became healthy and strong. Within a few weeks he became more active. He would chatter (吱吱叫) for his next meal, playfully go around the girls, and lie down on them for sleep. It wasn’t long before he was weaned onto solid food and reintroduced to the wild.
His first few visits to the great outdoors were funny. Just like a child, he would play in the grass some and then run back to Kaytlin for safety. Soon she had him climbing trees and finding nest material.
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 in the trees, Squirt met up with a family of gray squirrels.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________One night, Squirt didn’t come back to our house and it rained hard.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________5 . There has been a very serious decline in the numbers of shallow-water fish as a result of overfishing. People still want to eat fish, so the fishing industry must look at other sources, especially the deep waters of the Atlantic.
Conservation measures will have to be put in place if these deep-sea fish are to survive. Research on five such species shows that numbers have declined by between 87 percent and 98 percent.
The problem is emphasized by the fact that the decline in numbers happened in less than twenty years. Deep-sea fish take a long time to reproduce and normally live for many years.
The damage done by overfishing goes beyond the sea environment. Millions of people make a living in the fishing industry.
| A．Billions of people rely on fish for protein. |
| B．Many people now choose not to eat deep-sea fish. |
| C．Unfortunately, their reproduction rate is very low. |
| D．This puts them in the category of “critically endangered”. |
| E．None of these facts has been taken into account by the fishing industry. |
| F．Overfishing is a major cause of decline in populations of ocean wildlife. |
| G．This has resulted in a sharp decline in the numbers of many of the species caught. |
6 . For years, David James, who studies insects at Washington State University, had wanted to examine the migration (迁徙)patterns of West Coast monarch butterflies (黑脉金斑蝶). The route the butterflies travel has been hardly known because the populations are too small to follow. For every 200 monarchs tagged (打标签)by a researcher, only one is usually recovered at the end of its trip, James says, and finding even 200 in the wild to tag is unlikely. Knowing the route is vital to conservation efforts, but James had no way to figure it out- until he got a phone call from Washington State Penitentiary in Walla Walla.
The prison was looking for new activities to improve the mental health of those serving long-term sentences. So James began working with prisoners to raise monarchs through the whole process of their transformation. The adult insects were then tagged and released from the prison. Over five years, nearly 10, 000 monarchs flew from the facility. Elsewhere in Washington, Oregon and Idaho, researchers released another few thousand.
The tags included email addresses, and soon after the first butterflies took off, James started receiving messages from people who had spotted them. The butterflies, the reports confirmed, wintered in coastal California. Twelve of them landed at Lighthouse Field State Beach in Santa Cruz. Several more headed to Bolinas and Morro Bay.
The work helps researchers identify ideal places to plant milkweed and other vegetation that are important to the life cycle of West Coast monarch butterflies. It also brought out the gentler side of some of the prisoners. “They were very worried that they were going to harm the butterflies, ”James says. Watching the monarch change their form also touched the men. “This butterfly changed, ” James recalls prisoners telling him, “and maybe we can too. ”
1. What was hard for David to do in his study?| A．Gain financial support. | B．Hire qualified workers. |
| C．Build a new laboratory. | D．Find enough monarchs. |
| A．To guarantee their safety. |
| B．To enable them to fly longer distances. |
| C．To track their travel routes. |
| D．To distinguish them from other species. |
| A．The patience the butterflies showed. |
| B．The hardship the butterflies underwent. |
| C．The transformation of the butterflies. |
| D．The devotion of James to the butterflies. |
| A．The impact of the research. |
| B．The findings of James’ study. |
| C．The release of the prisoners. |
| D．The life cycle of the butterflies. |
7 . 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. |
8 . California has lost half its big trees since the 1930s, according to a study to be published Tuesday and climate change seems to be a major factor(因素).
The number of trees larger than two feet across has declined by 50 percent on more than 46, 000 square miles of California forests, the new study finds. No area was spared or unaffected, from the foggy northern coast to the Sierra Nevada Mountains to the San Gabriels above Los Angeles. In the Sierra high country, the number of big trees has fallen by more than 55 percent; in parts of southern California the decline was nearly 75 percent.
Many factors contributed to the decline, said Patrick McIntyre, an ecologist who was the lead author of the study. Woodcutters targeted big trees. Housing development pushed into the woods. Aggressive wildfire control has left California forests crowded with small trees that compete with big trees for resources(资源).
But in comparing a study of California forests done in the 1920s and 1930s with another one between 2001 and 2010, McIntyre and his colleagues documented a widespread death of big trees that was evident even in wildlands protected from woodcutting or development.
The loss of big trees was greatest in areas where trees had suffered the greatest water shortage. The researchers figured out water stress with a computer model that calculated how much water trees were getting in comparison with how much they needed, taking into account such things as rainfall, air temperature, dampness of soil, and the timing of snowmelt(融雪).
Since the 1930s, McIntyre said, the biggest factors driving up water stress in the state have been rising temperatures, which cause trees to lose more water to the air, and earlier snowmelt, which reduces the water supply available to trees during the dry season.
1. What is the second paragraph mainly about?| A．The seriousness of big-tree loss in California. |
| B．The increasing variety of California big trees. |
| C．The distribution of big trees in California forests. |
| D．The influence of farming on big trees in California. |
| A．Ecological studies of forests. |
| B．Banning woodcutting. |
| C．Limiting housing development. |
| D．Fire control measures. |
| A．Inadequate snowmelt. | B．A longer dry season. |
| C．A warmer climate. | D．Dampness of the air. |
| A．California’s Forests: Where Have All the Big Trees Gone? |
| B．Cutting of Big Trees to Be Prohibited in California Soon |
| C．Why Are the Big Trees Important to California Forests? |
| D．Patrick McIntyre: Grow More Big Trees in California |
9 . People use laughter to connect and bond with others. It’s how we tell friends that we find their jokes funny, or how kids in a park show that they are having fun. Laughter is so important to humans, even if they belong to different cultures or speak different languages. What about animals? Scientists are studying if there is a connection between animals’ laughing and playing.
Sasha Winkler, from the University of California, Los Angeles (UCLA), studies biological anthropology (人类学)，including the study of animal behavior. She noticed that the small monkeys she worked with, liked to play together by chasing each other. While having fun together, they made panting (喘气) sounds, almost like they were out of breath, which reminded Winkler of their quiet laughter. This made Winkler wonder whether other animals did so while they were playing.
To find out whether other animals laugh and play, Winkler teamed up with another scientist named Greg Bryant, a professor and vice chair in the Department of Communication at UCLA. Together, they found and read dozens of reports written by other scientists who study animals. Winkler and Bryant looked for any mentions in any animal of sound signaling like the panting of the monkeys during their playing.
In April 2021, Winkler and Bryant published their findings in a science journal. Through their research, they identified 65 species or groups of animals, which laugh while playing. The animals that laugh the most include primates (灵长类) like monkeys and apes, rodents (啮齿动物) like rats, and mammals that live in the ocean like dolphins. Their work won’t only help us understand animals better but it could also help us understand how humans develop or change over time. Next, they will carry on more study to find more.
1. What is the function of paragraph 1?| A．To conclude the main idea. |
| B．To put forward the topic. |
| C．To offer the supporting evidences. |
| D．To add the background information. |
| A．They can hardly breathe. |
| B．They tend to laugh separately. |
| C．They laugh at a low sound. |
| D．They don’t laugh at all. |
| A．It is great progress in the study of animals and humans. |
| B．It is only based on the findings in a science journal. |
| C．Over 65 groups of animals laugh while playing. |
| D．They do the research only by studying primates and rodents. |
| A．Science. | B．Education. | C．Health. | D．Entertainment. |
10 . This fall, students at the University of Massachusetts found a new menu at their dining commons: the “diet for a cooler planet” menu. This meant herb-roasted lamb, raised with a carbon-friendly approach. It included sweet potatoes that had been picked from a local farm’s field post-harvest. The options were plant-heavy, locally grown, and involved little to no packaging.
“We wanted to let students participate in climate action by making choices about their food,” says Kathy Wicks, sustainability director for UMass Dining. The university is not alone in this effort. Increasingly, American consumers and institutions are thinking about how their food choices factor into climate change. For many, small choices at the grocery store, dining hall, and restaurant can feel more accessible than big-ticket options like buying a fuel-efficient car or installing home solar panels.
Small changes in dietary habits may make a big difference. Climate activists often target fossil fuels and transportation systems, but studies point to the food system as a significant contributor to global warming. According to Project Drawdown, a research organization that evaluates climate solutions, the way food is grown, transported, and consumed accounts for about a quarter of the world’s greenhouse gas emissions. Beef is a regular target. “If, on average, Americans cut a quarter pound of beef per week from their diet, it’s like taking 10 million cars off the road a year,” says Sujatha Bergen, director of health campaigns for the Natural Resources Defense Council. Food waste ranks third among climate solutions. While much waste occurs before consumers are involved — food left on the field or “chucked” because it does not fit appearance standards, Americans also throw out a lot of food they have purchased: about $ 1,600 worth a year per family of four.
“People are beginning to understand that their food choices make a big impact on climate,” says Megan Larmer, director of regional food at the Glynwood Center for Regional Food and Farming in New York. But, she cautions substantial change will need to come from the whole food system.
1. What is the purpose of the new menu at the University of Massachusetts?| A．To market the cold dishes. | B．To reduce the cost of packaging. |
| C．To popularize the plant-heavy diet. | D．To promote low carbon awareness. |
| A．Food is a decisive factor for climate change. |
| B．Food choices matter much to global warming. |
| C．Universities are working together in climate action. |
| D．Fuel-efficient cars are not affordable for consumers. |
| A．It has great influence on carbon reduction. | B．It is popular among millions of car drivers. |
| C．It has a close relationship with gas emission. | D．It plays a significant role in American’s diet. |
| A．Food System Reform: A Successful Trial | B．Global Warming: An Approaching Danger |
| C．Carbon Emission: A Killer, or Healer? | D．Low Carbon Diet: A Craze, or More? |
