1 . 听下面一段独白，回答以下小题。1.

A．What causes fearfulness externally.

B．Why mice are particularly fearful animals.

C．Whether fearfulness is inherited or not.

D．How animals react to frightening situations.

2.

A．They wandered around the box.

B．They bred again and again.

C．They couldn’t find a hiding place.

D．They remained close to one wall.

3.

A．Some changes in the nervous system.

B．The interference from human beings.

C．The size of nerve cells in the brain.

D．The existence of certain nerve cells.

2 . Directions: Complete the following passages by using the words in the box. Each word can only be used once. Note that there is one word more than you need.

A. approach B. beneficiaries C. recently D. eliminates   E. nutrients F. practices G. irreparable   H. threat   I. undesirable   J. panic K. naturally

The Beneficial Effects of Forest Fires

Forest fires are undoubtedly a threat. In the mid-1900s, all forest burns were considered     1    , and firefighters responded to all of these fires whether or not they were burning close to where humans lived. This     2     to forest fires was both expensive and risky. However, more     3     forest managers began to see that forest fires did have benefits. Foresters saw that forest fires were beneficial for trees and soil.

Previously, people believed that forest fires caused     4     damage to trees, however, now forest managers know that trees are the major     5     of fires. Many     6     occurring forest fires, often caused by lightning strikes, are surface fires that burn the understory — the shrubs and herbs from the forest — without damaging the trees in the overstory. In this way, the fire     7     competition from the smaller trees, allowing the larger trees to flourish. Once the understory has been burned away, the forest is less likely to burn from high-temperature fires that can do real damage to the tall trees.

In the past, it was not obvious how forest fires enriched the soil. Today, foresters understand that forest fires improve soil quality by changing the ‘litter’ — dead leaves and branches on the forest floor — to nutrient-rich soil. Normally, litter decomposes very slowly. However, fire releases the     8     in the litter immediately. This creates an increase in the amount of phosphorus and potassium which are key elements that promote tree growth.

As forest managers have leared more about the long-term effects of forest fires, they have realized that forest fires can have beneficial effects and have changed their forest management     9     to reflect this new opinion. It is now recognized that forest fires, are a natural part of forest ecosystems and are beneficial to the trees and soil. As long as fires are no     10     to homes and communities, foresters now often choose to do nothing to stop the fires.

3 .

A．Return the dog to her relative.	B．Place a ban on dogs.
C．Clean her apartment.	D．Stay with her relative.

4 . 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.

Wildlife Report Calls for Action

The World Wide Fund for Nature released its Living Planet Report, which found that the Earth’s wildlife populations have fallen by 69% in the past 50 years.

The report is produced every two years to show how the natural world is changing, so governments, businesses, and conservationists understand     1     needs to be done to protect the Earth. The team looks at several factors. One is the Living Planet Index (LPI),     2     examines how wildlife populations have changed over time. A total of 5, 268 species across the world have been tracked, including birds, fish, insects, and mammals.

The change in wildlife varies around the world. South America and the Caribbean are the most affected. In these areas, the average wildlife populations have dropped by 94% over 50 years. Central Asia and Europe have     3     (small) decline, with an 18% drop. The WWF says the changes are caused by human activity. One of the biggest threats     4     (face) wildlife is a number of acres of forest that are being chopped down     5     that theland can be used for farming instead. To find the best way to protect animals worldwide, the International Union for Conservation of Nature (IUCN) is studying how easy or hard     6     will be to help different species. It has so far found that the populations of several animals, including the pink pigeon and the Sumatran rhino,     7     be boosted.

While some news from the Living Planet Report is worrisome, there is good news, too. Up to now the numbers of many species     8     (rise) around the world because of people’s efforts to protect them. In India, the number of tigers has nearly doubled since 2009. And in 2020,   there were more than 50 sightings of the critically     9     (endanger) Antarctic blue whale.

In the US, conservation efforts in recent decades have helped to save several species, including the bald eagle, which     10     (remove) from the threatened species list in 2007.

5 . Directions:   Fill in each blank with a proper word chosen from the box.   Each word can be used only once.   Note that there is one word more than you need.

A. carved          B. unknowingly            C. ecosystem          D. artificial          E. elemental F. changing       G. practically        H. wrinkled        I. unmoving          J. species       K. inspection

Magical Creatures: AN APPRECIATION OF AUTUMN MOTH (蛾)

Moths seem to have a bit of a bad reputation: to some they are ill indications or something scary, to others they are dull in comparison to our well-loved butterflies. But moths are an essential part of a(n)     1    , and important food sources for species like birds and bats. And for me, moths are far from dull.

My first meeting with an Angle Shades moth was nearly a non-encounter. I almost passed by without noticing it, thinking it was a fallen leaf on a fence post. But there was something about it that stopped me in my tracks. Its angular shape perhaps? Or the way it sat,     2    , despite the breeze. Closer     3     revealed cream and buff shell-shaped wings, painted with triangles of light pink and brown. Suddenly, it transformed from a(n)     4     leaf into a living thing before my eyes. I’ve been fascinated ever since.

The Canary-shouldered Thorn, with its hairy buttercup-coloured body and yellow and orange wings, reminds me of a fallen silver birch (白桦树) leaf. A night-flyer, it favours gardens and woodlands, and is often drawn to     5     light, meaning that your torch beam may be attracting moths as well as lighting your way in the dark. It’s also worth double-checking any leaves in farm houses, as these sheltered spots are a favourite hiding place of another overwintering     6    : the Herald moth. This elegant creature’s beautiful wings look as though they’ve been     7     by hand and painted with bronze.

There’s more to these imitators than fallen leaves. The Green-spotted Crescent, which     8     disappears on rough branches, has metallic green spots integrating with the moss (苔藓). Maybe I’ve already     9     crossed paths with one, though. As we dig out our big coats and slip on boots for walks beneath branches, how many moths are we missing? These clever creatures aren’t bad indications, but     10     parts of nature, with a gift for fancy-dress.

6 . 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.

7 . 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

8 . Global surface temperatures last month were 2.25 degrees warmer than the 20th century average of 60.1 degrees, breaking previous records, from August 2016, by more than half a degree, according to NOAA researchers. “That to me is a really huge _______ from one record to the next,” said Ellen Bartow, a physical scientist with NOAA’S National Centers for Environmental Information.

The report _______ what millions of people have experienced in recent months, including record-breaking heatwaves that have touched almost every corner of the globe. Asia, Africa, North America and South America had their warmest August on record, as did the Arctic, Europe and Oceania — a region that _______ Australia - had their second-warmest August on record, the report said.

It wasn’t just the land that _______ : August set a record for the highest monthly sea surface temperature abnormally—1.85 degrees above average. The warming oceans _______experiencing its fourth continuous month with the _______ shrinking sea ice, with Antarctica sea ice extent on record. Globally, sea ice extent in August was about 550,000 square miles less than the previous record low, set in August 2019.

“We’ve seen unheard-of warmth in the global ocean, and that’s definitely alarming because its effects _______ beyond just the scope of the ocean,” Bartow-Gillies said. “Not only are you _______ marine habitats, but you’re affecting storm creation, you’re creating more instability in some areas, and you’re creating flooding events in other areas. There’s a whole host of _______ that come along with these warmer ocean surface temperatures that we’re seeing.”

In fact, the report comes after a series of severe natural ________ that span the globe. This week, a Mediterranean storm caused serious flooding in Libya, killing more than 11,000 people. In Canada, wildfires burned through more than 42 million acres of forests this summer, and several are still burning. ________ global warming was not the singular cause of any of these disasters, heating of the Earth continues to ________ the likelihood of extreme weather events and wildfire worldwide.

“The scientific evidence is ________ —we will continue to see more climate records and more intense and frequent extreme weather events impacting society and ecosystems, until we stop ________ greenhouse gases,” read a statement from Samantha Burgess, deputy director of the European Union’s Copernicus Climate Change Service, which also ________ that this summer was the hottest on record.

1.

A．distance

B．jump

C．travel

D．flight

2.

A．confirms

B．emerges

C．quotes

D．argues

3.

A．holds

B．touches

C．surrounds

D．includes

4.

A．boiled

B．cooled

C．stricken

D．disappeared

5.

A．contributed to

B．suffered from

C．resulted from

D．devoted to

6.

A．slowest

B．lowest

C．highest

D．fastest

7.

A．enlarge

B．discharge

C．extend

D．undertake

8.

A．creating

B．saving

C．remaining

D．disturbing

9.

A．issues

B．debates

C．events

D．proposals

10.

A．floods

B．disasters

C．storms

D．earthquakes

11.

A．Though

B．Because

C．Unless

D．When

12.

A．damage

B．destroy

C．decrease

D．increase

13.

A．irresistible

B．unchangeable

C．inaccessible

D．unbearable

14.

A．conveying

B．releasing

C．relieving

D．dismissing

15.

A．predicted

B．expected

C．doubted

D．determined

9 . Directions: Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.

The problem of electronic waste

We have gradually come to realise that in two ways in particular, modern hi-tech can be bad for the planet. The first is its energy use; the worldwide scale of information technology is so enormous that electronics now produce fully two percent of global carbon emissions, which is about the same as the highly controversial emissions of aeroplanes. The other is the hardware, when it comes to the end of its natural life. This, increasingly, is pretty short. We have hardly noticed this important stream of waste, so much so that a Greenpeace report on the untraced and unreported e-waste two years ago referred to it as “the hidden flow”. We need to be aware of it.

The latest United Nations Environment Programme (UNEP) report estimates that worldwide, electronic waste is mounting by about 40 million tons a year. So what can we do about it?

The European Union has recognised the problem by adopting a key principle: producer responsibility. In other words, making it the duty of manufacturers of electronic goods to ensure their safe disposal at the end of their lives. In practice, an EU regulation now means that electronics dealers must either take back the equipment they sold you, or help to finance a network of drop-off points, such as public recycling sites. Its main feature is quite ambitious: it aims to deal with “everything with a plug”.

The new UN report suggests that all countries could do something about the problem with a change in design. Groups such as Greenpeace have led the way in putting pressure on major manufacturing companies to find substitutes for the toxic chemicals inside their products. Encouragingly, they have had some success in forcing them to develop non-poisonous alternatives to these. This may be the real way forward.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

10 . Directions: Read the following passage. Summarize the main idea and the main points of the passage in no more than 60 words. Use your own words as far as possible.

You still need a better reason to plant a tree?

Police aren’t cheap and neither are lawyers, judges, and all the other layers that make up the justice system. But trees and some grass, in comparison, are a real bargain, and they prove to be effective in lighting crimes.

Many cities used to launch programs to plant vegetation along roadways to help absorb rainwater. After tracking 14 types of crime in nearby areas, Michelle Kondo, a social scientist found that a variety of crimes including property crimes such as theft and burglary, and violent crimes such as armed fights and mayhem in those areas decreased to 27 percent, a stunning 18 percent fall. Kondo believed the appearance of city trucks and vans in the landscaped areas— for planting and maintenance— was enough to scare away potential criminals.

Kondo’s study also worked on the link between grassland care and decrease of the crime in downtown areas. It’s tempting to use income as the connection. After all, if you have the crime and money to water your lawn, you probably live in a neighborhood that sees less crime. But actually, people are less likely to hang in those areas where the streets are maintained or cleaned. “You will see less kids hanging on the corners.’’ Kondo said. He argued that caution of the local people implied by the organized greenery helped to frighten away ill-intentioned guys, by announcing to would-be criminals that there are “eyes on the street’’ that care for their neighborhood and would be more likely to report a crime.

We already know greenery is beautiful to look at and can help improve mood and health while reducing pollution. Now we can add crime-fighting to the list of vegetation’s many benefits. Therefore, are you ready to plant a tree?