1 . The cultivation of plants by ants is more widespread than previously realized, and has evolved on at least 15 separate occasions.

There are more than 200 species of ant in the Americas that farm fungi (真菌) for food, but this trait evolved just once sometime between 45 million and 65 million years ago. Biologists regard the cultivation of fungi by ants as true agriculture appearing earlier than human agriculture because it meets four criteria: the ants plant the fungus, care for it, harvest it and depend on it for food.

By contrast, while thousands of ant species are known to have a wide variety of interdependent relationships with plants, none were regarded as true agriculture. But in 2016, Guillaume Chomicki and Susanne Renner at the University of Munich, Germany, discovered that an ant in Fungi cultivates several plants in a way that meets the four criteria for true agriculture.

The ants collect the seeds of the plants and place them in cracks in the bark of trees. As the plants grow, they form hollow structures called domain that the ants nest in. The ants defecate (排便) at designated absorptive places in these domain, providing nutrients for the plant. In return, as well as shelter, the plant provides food in the form of fruit juice.

This discovery prompted Chomicki and others to review the literature on ant-plant relationships to see if there are other examples of plant cultivation that have been overlooked. “They have never really been looked at in the framework of agriculture,” says Chomicki, who is now at the University of Sheffield in the UK. “It’s definitely widespread.”

The team identified 37 examples of tree-living ants that cultivate plants that grow on trees, known as epiphytes (附生植物). By looking at the family trees of the ant species, the team was able to determine on how many occasions plant cultivation evolved and roughly when. Fifteen is a conservative estimate, says Campbell. All the systems evolved relatively recently, around 1million to 3 million years ago, she says.

Whether the 37 examples of plant cultivation identified by the team count as true agriculture depends on the definitions used. Not all of the species get food from the plants, but they do rely on them for shelter, which is crucial for ants living in trees, says Campbell. So the team thinks the definition of true agriculture should include shelter as well as food.

1. According to biologists, why is ant-fungus cultivation considered as a form of true agriculture?

A．Because it occurred earlier than human agriculture.

B．Because it fulfills the standards typical of agricultural practices.

C．Because it redefines the four criteria for true human agriculture.

D．Because it is less common than previously thought.

2. What motivated Chomicki and others to review the literature on ant-plant relationships?

A．They determined on new family trees of the ant species.

B．They overlooked some tree-living ants that provided nutrients for the plants.

C．They never studied the ant-plant relationships within the context of agriculture.

D．They never identified any an t species that engaged in cultivation of fungi.

3. Which of the following statements is supported by the team's findings according to the passage?

A．Ants’ cultivation of plants is limited to a few specific species.

B．The cultivation of fungi by ants is considered the earliest form of agriculture.

C．True agriculture in ants involves only food-related interactions with plants.

D．Ants have independently cultivated plants on at least 15 distinct occasions.

4. What is the passage mainly about?

A．The evolution of ants in the plant kingdom.

B．The widespread occurrence of ant-plant cultivation.

C．The discovery of a new ant species engaging in agriculture.

D．The contrast between ant agriculture and human agriculture.

4 . Everybody loves to hate invasive species. The international list of invasive species—defined as those that were introduced by humans to new places, and then _________ — runs to over 4,000. In Australia and New Zealand hot war is fought against introduced creatures like cane toads (蔗蟾蜍) and rats.

Some things that are uncontroversial (无争议的) are nonetheless foolish. With a few important exceptions, campaigns to   _________ invasive species are merely a waste of money and effort — for reasons that are partly practical and partly philosophical.

Start with the practical arguments. Most invasive species are neither terribly successful nor very _________ . Britons think themselves surrounded by foreign plants. _________ , Britain’s invasive plants are not widespread, not spreading especially quickly, and often less of a(n) _________ than vigorous native plants. The arrival of new species almost always _________ biological diversity (多样性) in a region; in many cases, a flood of newcomers drives no native species to extinction. One reason is that invaders tend to colonise _________ habitats like polluted lakes and post-industrial wasteland, where little else lives. They are nature’s opportunists.

The philosophical reason for starting war on the invaders is also _________. Elimination campaigns tend to be   _________ by the belief that it is possible to restore balance to nature — to return woods and lakes to the state before human   ____________ . That is misguided. Nature is an everlasting mess, with species constantly emerging, withdrawing and hybridizing (杂交). Humans have only quickened these processes. Going back to ancient habitats is becoming ____________ in any case, because of man-made climate change. Taking on the invaders is a(n) ____________ gesture, not a means to an achievable end.

A reasonable attitude to invaders need not imply passivity. A few foreign species are truly ____________ and should be fought: the Nile perch – a fish, has helped drive many species of fish to extinction in Lake Victoria. It makes sense to ____________ pathogens (病菌), especially those that destroy whole native tree species, and to stop known agricultural pests from gaining a foothold. Fencing off wildlife reserves to create open-air ecological museums is fine, too. And it is a good idea for European gardeners to destroy Japanese plants, just as they give no space to native harmful grasses like bindweed and ground elder. You can garden in a garden. You cannot garden ____________ . That is universally accepted.

1.

A．multiplied

B．shrunk

C．disappeared

D．harvested

2.

A．conserve

B．eliminate

C．investigate

D．prioritize

3.

A．healthy

B．intentional

C．harmful

D．profitable

4.

A．As a result

B．For example

C．By contrast

D．In fact

5.

A．attraction

B．dominance

C．annoyance

D．substitute

6.

A．increases

B．destroys

C．reveals

D．targets

7.

A．oppressed

B．disturbed

C．cultivated

D．preserved

8.

A．acceptable

B．needless

C．mistaken

D．convincing

9.

A．fueled

B．organized

C．interrupted

D．greeted

10.

A．civilization

B．interference

C．interaction

D．maintenance

11.

A．tolerable

B．impossible

C．beneficial

D．critical

12.

A．reluctant

B．disorderly

C．invalid

D．unbalanced

13.

A．damaging

B．flexible

C．doubtful

D．outstanding

14.

A．pick up

B．take in

C．keep out

D．turn down

15.

A．agriculture

B．vegetation

C．atmosphere

D．nature

6 . Reducing the workweek to four days could have a climate benefit. In addition to improving the well-being of workers, cutting working hours may reduce carbon emissions. But those benefits would depend on a number of factors, experts emphasize, including how people choose to spend nonworking time.

Commuting and travel

Transportation is the biggest contributor to greenhouse emissions. A November 2021 survey of 2,000 employees and 500 business leaders in the United Kingdom found that if all organizations introduced a four-day week, the reduced trips to work would decrease travel overall by more than 691 million miles a week.

But the climate benefits of less commuting could be eliminated, experts said, if people choose to spend their extra time off traveling, particularly if they do so by car or plane.

Energy usage

Shorter working hours could lead to reductions in energy usage, experts said. According to a 2006 paper, if the United States adopted European work standards, the country would consume about 20 percent less energy.

Energy could also be conserved if fewer resources are needed to heat and cool large office buildings, reducing demands on electricity. For example, if an entire workplace shuts down on the fifth day, that would help lower consumption — less so if the office stays open to accommodate employees taking different days off.

Lifestyle changes

It’s possible that fewer working hours may lead some people to have a larger carbon footprint, but experts say research suggests that most people are likely to shift toward more sustainable lifestyles.

One theory is that people who work more and have less free time tend to do things in more carbon-intensive ways, such as choosing faster modes of transportation or buying prepared foods. Convenience is often carbon-intensive and people tend to choose convenience when they're time-stressed. Meanwhile, some research suggests that those who work less are more likely to engage in traditionally low-carbon activities, such as spending time with family or sleeping.

“When we talk about the four-day workweek and the environment, we focus on the tangible, but actually, in a way, the biggest potential benefit here is in the intangible,” experts said.

1. What is identified as the leading cause of greenhouse emissions according to the passage?

A．The well-being of employees.

B．The conservation of energy.

C．Commuting and travel.

D．The European work standard.

2. What can be inferred from the underlined sentence “the biggest potential benefit here is in the intangible” in the last paragraph?

A．People will have big potential in achieving intangible benefits while working.

B．People are more likely to engage in carbon-intensive activities due to time constraints.

C．People may shift toward more sustainable lifestyles and lower carbon footprints.

D．People may travel more frequently by car or plane during their extra time off.

3. The passage is mainly written to       .

A．highlight the importance of shortening working time in the context of well-being

B．provide an overview of transportation emissions worldwide

C．analyze the impact of reduced working hours on mode of business

D．illustrate factors affecting the climate benefits of a shorter workweek

7 . Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

In a bid to control the nation’s growing problem with food wastage, the South Korean government has started a unique initiative – “Pay as You Trash”. As of now, the South Korean government has three methods     1     place to charge citizens for the food thrown away. One is through a RFI card. When users tap this card over a specially designed food waste bin, the lid (盖子) will open, allowing them to dump their waste. The waste     2     (weigh) automatically and a bill is recorded in the user’s account which the user needs to settle on a monthly basis. Each RFI bin costs $1,500 and     3     serve 60 households.

The second billing method is through pre-paid garbage bags. These specially designed bags are priced based on volume. There’s also an electronic management system,     4     residents put food waste directly into the bin and pay for it by purchasing a special tag     5     (attach) to the bin.

Every household in South Korea is subject to one of these payment systems.     6     the new payment method affects you depends totally on how much food you throw away. Whatever system you use, you are sure to feel the pain of food waste. The more food you throw out, the more you end up     7     (pay).

And it’s working. Residents like Seoul housewife Ms. Kwan have found it necessary to adopt innovative methods to avoid food waste. She picks     8     wet out of leftover food before throwing it away. She also separates fresh produce and other food items into     9     (small) portions so that only the required amount is used up per meal. “     10     the fees can be reduced, I’m willing to adopt any innovative method to avoid food waste,” she said.

8 . Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

Beethov-hen’s first symphony

On a grey Friday morning at a Hawke’s Bay farm, members of New Zealand’s symphony orchestra dressed in black to perform their latest composition in front of a large crowd.

The music contained many marks of traditional classical music, but as it began, the instruments started to make loud, rough sounds more commonly     1     (hear) in chicken coops than in an auditorium.

However, no feathers were angered by this departure from tradition,     2     the audience that gathered to listen to the concert last week was, in fact, a couple of thousand chickens.

The piece of music – Chook Symphony No.1 –     3     (create) specifically for the birds out of an unlikely partnership between the orchestra and an organic free-range chicken farm which wanted a piece of chicken-friendly music to enrich its flocks’ lives.

“We’ve been playing classical music for the chickens for some years now because     4     is well researched that the music can calm the chickens down,” says Ben Bostock, one of the two brothers who     5     (own) the Bostock Brothers farm.

Research has shown animals can respond positively to classical music, and chickens are particularly responsive to baroque (巴洛克风格), according to some studies.

The composer, Hamish Oliver,     6     used the baroque tradition as a starting point and drew inspiration from composers such as Corelli, Bach, and Schnittke, wanted the piece to be playful by including sounds from a chicken’s world. “The trumpet imitates the chicken… the woodwind instruments are the cluckiest, especially if you take the reeds off.”

The early stages of composition were spent     7     (test) out which instruments and sounds the chickens responded to best.

“They didn’t like any big banging,” Bostock said, adding that when the birds respond positively to the music, they tend     8     (wander) farther among the trees. Bostock now hopes chicken farmers around the world will use the piece of music to calm their own birds.

For Oliver, having input from the farmers about     9     the chickens were responding to particular sounds and instruments was a highlight of the project.

The symphony has searched exhaustively     10     any other examples of orchestras making music specifically for chickens and believes this to be a world-first, says Peter Biggs, the orchestra’s chief executive.

10 . Mary kept tossing and turning in her sleeping bag. It was late in the night. She had been a school counsellor in the summer camp for a year now. She took care of young children who were as young as seven. That night, she was having a bad dream. In it, she was running desperately towards a river. She kept shouting, “Fire!”

Mary was awake. She realized that she had been shouting in her sleep. Suddenly, she smelled smoke. Then she saw shadows dancing against the walls of the tent. Mary jumped up and hurried to the opening in the tent. A tree was on fire! Fanned by the wind, the fire leaped up hungrily to devour everything in its path. It was going to spread to the tents very soon.

Time was of essence so Mary pulled the four children instantly out of their sleeping bags. “Fire! Fire!” She yelled, as loudly as she could.” Wake up! Get up!” After that, Mary ran back to her tent and grabbed all the sleeping bags she could carry. By then, everyone had emerged from their tents. Their faces were etched with confusion. Mary took the youngest child by the hand. Knowing that the sleeping bags would be useful, Mary pulled them along. Everyone quickly but calmly followed her. They held on to each other, in solemn silence.

After they ran to the river, Mary pulled the children into the water. Then she got into it herself. She dragged the sleeping bags in. She pushed them under the water until they were soaked. Mary was not surprised that all the trees were on fire. It had been an extremely hot season and everything in the forest was dry. Soon, they saw many animals racing to the river. Deer, rabbits and squirrels splashed into it. By then, the fire roared. Mary and other adults grabbed the wet sleeping bags and pulled them over the children’s heads.

Everything around them was bright orange and the sleeping bags had to stay wet. They made a final effort to splash water over all the sleeping bags and hid under the water.

The heat and smoke finally ended. Mary raised her head and looked around. To her relief, all the children had escaped unhurt. People all called out, “You saved our lives.” Mary suddenly thought of the dream she had.

1. The underlined word devour is closest in meaning to ________.

A．brighten

B．destroy

C．evaluate

D．refuse

2. Why did Mary carry sleeping bags with her in the first place?

A．Because some children were still in the bags

B．Because these sleeping bags were expensive.

C．Because the bags could protect them against fire in the water.

D．Because bags could be used to put out the fire.

3. According to Mary, why did the fire spread so quickly?

A．Because someone set the fire.	B．Because there were no fire fighters.
C．Because it was rather try.	D．Because animals worsened the fire.