1 . Directions: Complete the following passage 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．efficiency             B．employ             C．effective             D．chemicals             E．accelerating F．existing             G．projected             H．trapped             I．power                    J．simultaneously K．artificially

This past July was the hottest recorded month in human history. Heat waves smashed temperature records worldwide and even brought summer temperatures to Chile and Argentina during the Southern Hemisphere’s winter. It’s more than just a matter of sweaty discomfort. In the U.S. alone, it kills more people each year than floods, tornadoes and hurricanes combined. As climate change worsens, access to     1     cooled spaces is rapidly becoming a health necessity.

Yet standard air-conditioning systems have     2     us in a vicious cycle: the hotter it is, the more people use the AC—and the more energy is used as a result. Nicole Miranda, an engineer researching sustainable cooling at the University of Oxford says: “it’s not only a vicious cycle, but it’s a(n)     3     one.” According to 2018 data from the International Energy Agency (IEA), the worldwide annual energy demand from cooling is     4     to more than triple by 2050.

It’s becoming increasingly clear that humans cannot outrun climate change with the same air-conditioning technology we’ve been using. One well-known problem with current AC systems is their reliance on refrigerant     5    , many of which are potential greenhouse gases. About 80 percent of a standard AC unit’s climate-warming emissions currently come from the energy used to     6     it, says Nihar Shah, director of the Global Cooling Efficiency Program at Lawrence Berkeley National Laboratory.

Standard air-conditioning systems     7     cool and dehumidify through a relatively inefficient mechanism: in order to condense water out of the air, they overcool that air past the point of comfort. Many new designs therefore separate the dehumidification and cooling processes, which avoids the need to overcool.

Even with some of the best technologies available, the gains in     8     alone might not be enough to offset the widely expected increase in air-conditioning use. It will not work to simply replace every     9     air conditioner with a better model and call it a day. Instead, a truly cooler future will have to     10     other strategies that rely on urban planning and building design to minimize the need for cooling in the first place.

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．award             B．house             C．hit                    D．namely             E．specifically             F．grabbed G．traded             H．gang                    I．bar                    J．principled             K．transmission

American authorities arrested Masphal Kry, an official in Cambodia’s forestry administration, last November when he was heading to an international meeting about trade regulations for endangered species in Panama. Prosecutors accused him of conspiring with a smuggling ring. The contraband (违禁品): monkeys,     1     long-tailed macaques. His     2     allegedly grabbed wild macaques in Cambodia’s national parks and bribed officials to label them as captive-bred. Fake papers allowed Vanny Bio Research, a Cambodian pharma company, to ship these unfortunate primates (灵长类动物) to America for use in research. Mr Kry is facing trial in Florida’s Southern District Court. The federal government funds seven National Primate Research Centres (NPRCs), which     3     in total around 20,000 primates, not only macaques but also baboons and marmosets. These centres then     4     primates to labs across America. NPRCs have fulfilled only a third of requests for untested-on macaques in 2021 and prices have soared. Before the covid-19 pandemic a rhesus macaque cost $8,000; by 2022 they had     5     $24,000. Another species, long-tail macaques, is probably per pound currently the most expensive     6     wildlife, says Lisa Jones-Engel, a science adviser at PETA, an animal-rights group.

Getting lab monkeys from abroad became harder during the pandemic. Chinese authorities banned the export of all primates in early 2020. The Chinese government wanted to     7     the country’s wildlife trade, which is thought to encourage the     8     of pathogens—like sars-cov-2—from animals to humans.

That forced American companies to rely on less     9     South-East Asian suppliers. Many scientists believe poaching is prevalent across Cambodia. In February, the Department of Justice subpoenaed Charles River over 1,000 juvenile macaques the pharmaceutical company had bought from Cambodia; the DoJ suspected they were     10     in the wild then exported. These primates are now in Texas and Maryland but also in dilemma: they cannot be tested on, nor can they be flown back to Cambodia.

3 . Climate experts have warned about the many ways a warming planet can negatively affect human health. ________ global temperatures are predicted to increase by 1.5℃ by the 2030s, that risk is becoming increasingly real.

One long-held prediction that appears to be coming true — according to the results of a study recently published in Nature Scientific Reports — is how climate change might enhance ________ of bacteria that thrive and spread through warm sea waters and cause an infection with a particularly high ________ rate.

Vibrio vulnificus (创伤弧菌) flourishes in salty or brackish waters above 68℉. Infections are currently rare in the U.S., but that’s likely to change. Using 30 years of data on infections, scientists at the University of East Anglia in the U.K. found that Vibrio vulnificusis ________ from its historic Gulf Coast range, with more Northern states reporting infections as waters become warmer.

“We’re seeing the core ________ of infections extending to areas that traditionally have very few and very rare cases,” says Elizabeth Archer, a Ph.D. researcher and ________ author of the study. “But these areas are now coming into the main area of infections.”

Based on the latest data on how much the world’s water and air temperatures will rise, the scientists predict that by 2081, Vibrio vulnificus infections could reach every state along the U.S. East Coast. Currently, only about 80 cases are reported in the U.S. each year; by 2081, that could go up to over three-fold, the authors say.

Such a proliferation could have serious health consequences. Vibrio vulnificus kills approximately 20% of the healthy people it infects, and 50% of those with weakened immune systems. There is little evidence that antibiotics can ________ the infection, but doctors may prescribe them in some cases. People can get infected either by eating raw shellfish like oysters or by exposing small ________ to waters where the bacteria live, which can lead to serious skin infections.

Warming sea temperatures aren’t the only reasons behind the rise of Vibrio vulnificus. Hotter air also draws more people to the coasts and bays, bringing them into closer contact with the bacteria.

“The bacteria are part of the natural marine environment, so I don’t think we can ________ it from the environment,” says Archer. “It’s more about mitigating infections by increasing ________ of the risk.”

To alert people to the growing threat, ________ systems are needed to track when concentrations of bacteria start to rise, similar to currently available pollen and pollution alarm.

Vbrio vulnificus is so ________ to temperature changes that concentrations could bloom after even a day of warmer water, so consistent monitoring and alerts are critical, says Iain Lake, professor of environmental epidemiology at University of East Anglia and senior author of the paper.

Lake says the expansion of Vibrio vulnificus is concerning for public health since the bacteria are now invading waters closer to heavily ________ areas, such as New York and Philadelphia. “Everyone can get a Vibrio vulnificus infection,” he says. “But the more ________ there is between warmer waters and people, the more the bacteria can move into populations ________ the elderly and those with other health conditions, who are more vulnerable to infections.”

1.

A．Even if

B．Except when

C．The instant

D．In case

2.

A．numbers

B．ranges

C．coverages

D．concentrations

3.

A．failure

B．fatality

C．survival

D．acid

4.

A．ranging

B．varying

C．expanding

D．shifting

5.

A．distribution

B．launch

C．community

D．sample

6.

A．principle

B．lead

C．principal

D．hit

7.

A．boost

B．accelerate

C．contain

D．remove

8.

A．harms

B．damages

C．injuries

D．wounds

9.

A．relieve

B．dissolve

C．resolve

D．erase

10.

A．conscience

B．awareness

C．panic

D．alert

11.

A．monitoring

B．processing

C．managing

D．delivering

12.

A．sensible

B．vital

C．vulnerable

D．sensitive

13.

A．populated

B．dense

C．paralleled

D．bordered

14.

A．reaction

B．interaction

C．intervention

D．relativity

15.

A．rather than

B．except for

C．such as

D．other than

4 . Directions: After reading the passages 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.

The illegal ivory trade (象牙贸易) has been a major problem in Africa for decades. Poachers (偷猎者) and hunters have killed hundreds of thousands of elephants to obtain this precious material. Now the areas in which they do it are taking action. The International Union for Conservation (保护) of Nature (IUCN) announced on Dec 3 that key states     1     poaching takes place have made a promise to stop the ivory trade and protect Africa’s elephants.

Recently, top officials and experts from 30 states met to discuss how to protect Africa elephants. The conference,     2     (organize) by the IUCN and the government of Botswana, was held in Gaborone, Botswana’s capital city.

In     3    1980s, as many as 1 million elephants across Africa were killed for ivory. The ivory     4     (use) to make jewelry and other items. This continued until 1989,     5     the convention (大会) on International Trade in Species voted to ban all trade in ivory. Then, elephants’ population slowly began to increase.

According to the IUCN, 2011 saw the highest levels of poaching and illegal ivory trading in at least 16 years. Around 25,000 elephants were killed in Africa that year. “With an estimated 22,000 elephants illegally     6     (kill) in 2012, we continue to face a critical situation,” said John E. Scanlon, CITES Secretary- General.

At the meeting, key Africa states where elephants make     7     home agreed to develop a “zero-tolerance approach” to poaching. The deal calls for tough sentences for poachers and hunters, and increased cooperation between states where poaching and hunting is a big problem. All participants at the conference agreed to sign the deal. With these states     8     (come) together, there may be hope for elephants.

5 . Directions: After reading the passages 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 farm of the given word; far the other blanks, use one word that best fits each blank.

Sky Kurtz farms in the desert. The co-fbunder and CEO of Pure Harvest Smart Farms—    1    (locate) outside Abu Dhabi, where temperatures regularly top 113°F—and his team use the challenging environs to trial new crops and technologies that have the potential to change farming in climate-challenged areas. Pure Harvest also provides produce to supermarkets and restaurants in Dubai and across the region     2    (use) less water, which is important in one of the most arid regions of the world.

Kurtz founded Pure Harvest Smart Fanns in 2017 with his co-founders Mahmoud Adi and Robert Kupstas. Passionate about food insecurity, they spent the first year studying high-tech food-production systems around the world,     3     searching for the optimal site for their first farm.

Kurtz’s farms in the UAE started out with “    4     but a PowerPoint, a pile of dirt, and the promise of what we would do,” says Kurtz. But Pure Harvest quickly proved it was built on more than a promise. The founders’ research and technological innovation led to the development of a proprietary (专利的)Controlled-Environment Agriculture (CEA) system—a combination of high-tech greenhouses and vertical farms that     5     (provide) a stable year-round climate.   The first crop of tomatoes was planted in August 2018 and harvested in October. The company’s original farm is now its R&D facility, and Pure Harvest has expanded its facilities in the UAE to 16 hectares of growing area. It also operates a 6-hectare farm in Saudi Arabia, and is developing a 6-hectare farm in Kuwait.

It now produces 14 types of leafy greens; two varieties of strawberries, with seven more     6    (develop); and almost 30 varieties of tomatoes, the product that started it all. With limited availability of local, seasonal produce, the UAE has typically imported much of its food, often air-freighted,     7    comes at a high cost, both economically and environmentally. And while they are more expensive compared with locally grown seasonal produce, the company says its fruit and vegetables are typically up to 60% cheaper than air-freighted imports of comparable quality. “I think we’ve fundamentally changed a belief system that said local is     8    (bad).” says Kurtz.

Their vision fits in with a larger objective for Dubai to become more self-sufficient. The focus is not just on growing for premium markets but also developing affordable solutions    9    (help) democratize access to fresh food.

Kurtz hopes the company’s data-driven technology can become a model for other regions that are experiencing climate stress. “We believe that we can develop a local-for-local solution     10     it’s needed most, and we’ve battle-tested that capability in one of the harshest environments in the world." he says.

6 . 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. selected        B. distinctive     C. signature       D. odds     AB. domestication       AC. decided AD. individuals   BC. tamest     BD. conflicted     CD. mixed     ABC. develop

If you see a house cat, the    1    are high that it will have white paws, a look that many owners affectionately call“socks.” But socks are rarely seen in wildcats, the elusive and undomesticated cousin of the house cat, so why do so many pet cats sport furry white feet?

As it turns out, this story started about 10,000 years ago, when humans and cats     2       life was better together.

This    3    eventually led to uber-prevalent socks on cats, as well as other well-known coat patterns, said Leslie Lyons, professor emerita and head of the Feline Genetics Laboratory at the University of Missouri College of Veterinary Medicine.

“As humans became farmers and started staying in one place, they had grain stores and waste piles” that attracted rodents, Lyons said. It was a mutually beneficial arrangement: the humans had fewer rodents to deal with and the cats got an easy meal.

The wild, undomesticated ancestor species of house cats, Felis silvestris, lives in Africa and Eurasia. These felines are tasty snacks as kittens and stealthy predators as adults, so     4     born with a coat that offers camouflage (保护色) have tended to survive and reproduce.

But not every F. silvestiis is born with a coat that blends into its habitat.

“Genetic mutations are occurring all the time.” Lyons said.

There isn’t much evidence to indicate why early cat people chose the individuals they did, but Lyons said the range of coats seen on modern domestic cats shows that our agrarian ancestors favored cats with markings that would have     5    with their camouflage.

In its native mixed forest or scrub desert environment, a cat with stark white paws would have stood out to predators and prey.

When humans started taking an interest in cats, these white paws would have stood out to them, too. “There were probably people saying, ‘I particularly like that kitten because it has white feet . Let’s make sure it survives’”, Lyons said.

Humans probably also    6    cats who were calm and comfortable around humans, Lyons said. Behavioral traits seem unrelated to coat color, but for reasons that scientists don’t fully understand, white spots tend to appear when the     7    individuals are selected and bred.

These    8    fur colors and markings emerge while a cat embryo is developing. The cells that give cat fur its color first appear as neural crest cells, which are located along what will become the back, Lyons said.

Then, those cells slowly migrate down and around the body. If those waves of cells move far enough to meet each other on the cat’s front side, the embryo will be born a solid-colored kitten, such as an all-black or all-orange cat. Felines     9    white feet, faces, chests and bellies when these cells don’t quite make it all the way.

So, the next time you see a kitty wearing white socks, you’ll know that this     10     feature is a result of genetic mutations, domestication and developmental biology. Although if you try telling the cat that, it will probably just look at you quizzically before sauntering away.

7 . Directions: After reading the passages 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.

(A)

Concerns about microplastics are not new. They’ve been growing for more than a decade. Over the past two years, however, many creative solutions     1     (emerge)to address the problem on a local level, ranging from hoovering beaches to shooting bubbles up from river bottoms. Still, experts say there’s a need for a huge, coordinated effort     2     we want to curb the global issue: The world produces 400 million tons of plastic annually, and much of that material breaks down into tiny pieces that now pollute our planet.

The term microplastics was coined in 2004 by marine ecologist Richard Thompson after he discovered tiny bits of plastic littering British beaches. Since then, scientists have found microplastics—fragments less than 5 millimeters wide-nearly everywhere: in the deep sea, in Arctic ice, in the air. Even inside us.

A 2019 study in Environmental Science Technology estimated humans take in up to 100, 000 bits of plastic each day. It’s not just the physical presence of plastic inside the body     3     poses a potential problem; plastic’s chemical additives might affect different species’ tissues and organs, according to a 2021 study in Environmental Toxicology and Chemistry. However, there is disagreement in the literature as to how much microplastics     4     (harm)species, including humans. Some say larger pieces may pass right through our bodies while the     5     (tiny)pieces could enter our cells. More research is needed.

For a global view of this vast issue, some scientists in 2020 created a public database to track plastic removal innovations. For example, Hong Kong Polytechnic University researchers presented     6     unique idea in April at the Microbiology Society’s Annual Conference: a bacteria biofilm that could attract and trap microplastics at a wastewater treatment plant,     7     they flow into rivers and oceans.

8 . The water off the coast of northwest Greenland is a glass-like calm, but the puddles (水坑) on the region’s icebergs are a sign that a transformation is underway higher on the ice sheet.

Several days of unusually warm weather in northern Greenland have caused rapid melting, made visible by the rivers of meltwater rushing into the ocean. Temperatures have been running around 60 degrees Fahrenheit — 10 degrees warmer than normal for this time of year, scientists said.

The amount of ice that melted in Greenland between July 15 and 17 this year alone — 6 billion tons of water per day — would be enough to fill 7.2 million Olympic-sized swimming pools, according to data from the US National Snow and Ice Data Center.

Each summer, scientists worry that they will see a repeat of the record melting that occurred in 2019, when 532 billion tons of ice flowed out into the sea. An unexpectedly hot spring and a July heat wave that year caused almost the entire ice sheet’s surface to melt. Global sea level rose permanently by 1.5 millimeters as a result.

Greenland holds enough ice — if it all melted — to lift sea level by 7.5 meters around the world. The latest research points to a more and more threatening situation on the Northern Hemisphere’s iciest island.

“Unprecedented (史无前例的)” rates of melting have been observed at the bottom of the Greenland ice sheet, a study published in February found, caused by huge quantities of meltwater flowing down from the surface. This water is particularly concerning because it can destabilize the sheet above it and could lead to a massive, rapid loss of ice.

And in 2020, scientists found that Greenland’s ice sheet had melted beyond the point of no return. The rate of melting in recent years exceeds anything Greenland has experienced in the last 12,000 years, another study found — and enough to cause measurable change in the gravitational field over Greenland.

At the East Greenland Ice-core Project — or EastGRIP — research camp in northwest Greenland, the work of scientists to understand the impact of climate change is being affected by climate change itself.

Aslak Grinsted, a climate scientist at the University of Copenhagen’s Niels Bohr Institute, said that they have been trying to get flights into the camp but the warmth is destabilizing the landing site.

Before human-caused climate change kicked in, temperatures near 32 degrees Fahrenheit there were unheard of. But since the 1980s, this region has warmed by around 1.5 degrees Fahrenheit per decade — four times faster than the global pace — making it all the more likely that temperatures will cross the melting point.

1. The passage is mainly written to ________.

A．alert people to the rapid melting of Greenland’s ice sheet

B．arouse people’s awareness of protecting the environment

C．inform people of the large amount of ice Greenland holds

D．reveal to people the cause and effect of the rise in sea level

2. What does “a transformation” in the first paragraph refer to?

A．Climate change.	B．A rise in sea level.
C．Global warming.	D．The melting of ice.

3. What can be learned about the ice that melted in 2019?

A．It repeated a record melting of the ice sheet several years ago.

B．Its amount was the largest ever and lifted sea level permanently.

C．It was enough to fill 7.2 million Olympic-sized swimming pools.

D．Its melting rate was so rapid as to result in an unexpectedly hot spring.

4. It is implied in the passage that ________.

A．climate change is a result of human activities

B．the study of climate change is being made easier

C．the melting of Greenland’s ice sheet is reversible

D．temperatures increase 1.5°F or so each decade globally