1 . On March 20, the U. N. International Panel on Climate Change(IPCC) released the final volume in a series of reports outlining experts’ latest understanding of climate science. It warned that even with urgent action we will face a dramatic increase in catastrophic events—from droughts to floods—that have become signs of a rapidly warming world. But the most worrisome things are the “known unknowns”—potential outcomes scientists know could happen even if they don’t know exactly when or how.
It’s striking how little we know about them. Take the Atlantic Meridional Overturning Circulation(AMOC) for example. This system of ocean currents is a key regulator(调节器) of Atlantic Ocean temperatures and, in turn, maintaining land temperatures, particularly in North America. If it collapsed, it would remake weather patterns and disturb “human activities”.
Another known unknown is the scale of sea-level rise. It is estimated that global average sea levels are expected to rise up to 1m (about 3 ft.) by 2100. But because the science of rapidly melting ice sheets remains difficult for scientists to understand, that number could also end up being 2m in the same time frame.
The more the planet warms, the more likely we are to experience unpredictable catastrophic changes. Climate events like these are referred to as tipping points: singular climatic events that can instantly reshape our understanding of climate systems. The new report also points out how the future becomes more difficult to predict as climate change continues. Impacts that scientists could forecast today will become more difficult to predict effectively when they are combined with other climate effects. Food insecurity, for example, could drive changes in agricultural practices, which would in turn affect the climate.
According to three decades of IPCC reports, it’s easy to see how the science has become more certain and more urgent. The IPCC is not expected to publish another report for at least six years. In that time, the science will evolve, as will the human impacts. By then we should know more about these known unknowns, too. We can only hope that the knowledge brings relief, not the alternative.
1. What do we know about the Atlantic Meridional Overturning Circulation?| A．It is the biggest system of all the oceans. |
| B．It will still be working in the 22nd century. |
| C．It can adjust temperatures of its coasts. |
| D．It may raise sea-levels by 3 meters. |
| A．Food security can have an impact on climate change. |
| B．Scientists know much about climate systems. |
| C．Combined climate effects can be predicted today. |
| D．Climate change makes no difference to our planet. |
| A．Optimistic. | B．Indifferent. |
| C．Pessimistic. | D．Concerned. |
| A．A medical lecture. | B．A science magazine. |
| C．A technology report. | D．A tour guidebook. |
It all began when my younger brother, Chris, and I went over to Aunt Barbara and Uncle Howard’s for Thanksgiving. My aunt and uncle live on a farm at the opposite end of town, and Chris and I love going there. The farm is situated in a valley surrounded by rolling hills. The fields are lush and green, with crops growing as far as the eye could see. The sound of chickens clucking and cows mooing fills the air. For my brother and me, it is a wonderland where we have a lot of fun.
We got up early and did the morning chores before we left. As kids, we talked happily about the feast along the way. Roasted turkey, cornbread stuffing, sweet potato, and cranberries were awaiting us. We were curious to know how a turkey could grow so big. When we finally got to my aunt and uncle’s, Chris and I went outside to see if Uncle Howard needed help with anything. He and Dad had decided to clean out the turkey coop (笼子) before dinner. Since Chris was only nine, he got the easier job of scrubbing out the watering cans. I was twelve, old enough to help load the wheelbarrow (手推车). Work was tough, but we still found time to ask Uncle Howard a lot of questions about turkeys. He must have been impressed, because when we were finished, he winked at my dad and handed me a turkey egg. “You kids put it under a setting hen,” he said, “and in twenty-five days, you’ll have a fine turkey!” Chris was so excited that he nearly dropped his egg on the way to the house. We both stuffed ourselves at dinner and then couldn’t wait for the grownups to finish talking so we could go home and tend to our egg.
Dad put the egg under an old hen, and every day Chris and I would check to see if it’d hatched yet. Twenty-five days seemed like forever.
Para. 1. Finally, on the twenty-sixth day, Chris and I walked into the coop after school.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Para. 2. We waited nervously for the coming of the next Thanksgiving Day.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________My best friend, Cocoa, and I live in a senior-citizen apartment complex in a lovely small town. Cocoa is a ten-year-old poodle(卷毛狗) and I am a sixty-nine-year-old lady, so you can see we both qualify as senior citizens.
Years ago, I promised myself that when I retired I would get a chocolate poodle to share my golden years. From the very beginning, Cocoa has always been exceptionally well-behaved. I never have to tell him anything more than once. He is extremely neat—when taking toys from his box to play, he always puts them back when he is finished. I have been accused of being obsessively neat, and sometimes I wonder if he mimics me or if he was born that way, too.
He is a wonderful companion. When I throw a ball for him, he picks it up in his mouth and gives it back to me. He does many amusing things that make me laugh, and when that happens, he is so delighted that he just keeps it up. I enjoy his company very much.
But almost two years ago, Cocoa did something that challenged comprehension. Was it a miracle or a coincidence? It is certainly a mystery.
One afternoon, Cocoa started acting strangely. I was sitting on the floor playing with him when he started pawing and sniffing at the right side of my chest. He had never done anything like this before, and I told him, “No.” Usually, one “no” is sufficient, but not that day. He stopped briefly, then suddenly ran toward me from the other side of the room, throwing his entire weight—eighteen pounds—at the right side of my chest. He crashed into me and I yelled in pain. It hurt more than I thought it would have.
Soon after this, I felt a lump (肿瘤). I went to the doctors, and after X-rays, tests and lab work were done, they told me I had cancer.
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。
When cancer starts, a wall of calcium(钙) builds to which the lump or cancer attaches itself.
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Was Cocoa just aware of what he was doing?
______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4 . Architects often spend months or even years perfecting a design to express their ideas more clearly, convey additional information, or outline the right proportions for a building. However, the urgent issue of climate change is placing new demands on their work. For example, in July, Super Typhoon Doksuri battered China, affecting more than 2.66 million people in Fujian Province alone.
Green architecture that conserves energy and reduces carbon dioxide emissions offers a solution, and concerted efforts have been made in diverse research fields over the past three decades to minimize heat loss. In addition, new buildings have to be tailored to the needs of people’s lifestyles.
Ren Jun, a professor at Tianjin University’s School of Architecture, who designed the first near-zero energy house in China in December 2019, said, “You can construct low-energy, environmentally-friendly houses, but if the interior design and environmental quality don’t meet residents’ requirements, these properties won’t be suitable to live in.”
The near-zero energy house, located-in Banbidian village in Beijing’s southern district of Daxing, won the International Design Award in the United States in January last year. The 400-square-meter property, which stands at the entrance to the village, runs on solar power gathered from rooftop panels, with the addition of a small amount of power from the grid (电网).
Ren said the first obstacle to conserving energy in the property was heat retention, which he attempted to achieve by keeping the indoor temperature at a certain level. The property is divided into five areas: a solar garden in the front yard, a central lounge, a water courtyard, a sponge zone, and a back room. For the exterior walls, Ren used three types of insulation (隔热层), including plastic foam, each about 25 centimeters thick.
Ren also looked for ways to deal with emissions at the house. He decided to install a ventilator, which pipes air that is polluted and replaces it with fresh air from outside in every room at the property.
Ren said it would take three to five years before more ultralow or near-zero energy buildings appeared in Chinese cities.
1. Which is not an important factor for designing green houses?| A．Energy consumption. | B．Carbon emission. |
| C．People’s lifestyle. | D．Architecture style. |
| A．The house consumes little electricity. |
| B．The house is deliberately designed to keep heat. |
| C．The house is equipped with many intelligent facilities. |
| D．The house is the first International Design Award-winning building in China. |
| A．He designed the house in five stories to trap heat in it. |
| B．He applied 75 centimeters of plastic foam to exterior walls. |
| C．He tailored the interior design to the demand of local people. |
| D．He installed a ventilator to cut down carbon dioxide emissions. |
| A．Green Homes Offer Hope amid Climate Change |
| B．Green Houses Feature Near-Zero Energy Consumption |
| C．Ren Jun Won the International Design Award |
| D．China Strives for Low Carbon Strategy with Green Houses |
5 . If you live on this planet, there’s a decent chance you’ve seen the classic Star TrekEpisode, in which captain Kirk and several members find themselves in what appears to be another universe.
These days, it seems the idea of the multiverse—many worlds—is having its Hollywood moment. Its appeal as a storytelling device is obvious—characters explore a multi-world with varying degrees of similarity to our own, as well as different versions of themselves. Hence, it has been fully established in mainstream pop culture.
While Hollywood can’t seem to get enough of the multiverse, it remains deeply controversial (有争议的) among scientists. Advocates on the two sides show no mercy toward each other in their books, on their blogs. But physicists didn’t pull the idea out of thin air—rather, several distinct lines of reasoning seem to point to the multiverse’s existence. However, critics warn that making the multiverse legal could make it harder for the public to distinguish speculative (推测性的) theories from established fact, making it more difficult to keep pseudo-science (伪科学) at bay. Giving credit to such speculation risks “turning fundamental physics into pseudo-science”.
The multiverse controversy is rooted in the idea of test ability. If we can’t interact with these other universes, or detect them in any way, some experts insist that reduces them to mere philosophical speculation. But Carroll, an advocate for “many worlds”, argues that mathematics is the language describing our physical theories. Since Schrdinger’s equation (方程), on which Quanturr (量子) mechanic rests, predicts the existence of many worlds, so be it.
Could a more expansive view of the universe itself be the next breakthrough? As Siegfried puts it: “Every time in the past that we’ve thought, ‘We’ve got it; this is what the whole universe is’—the people who’ve said, ‘Maybe there’s more than one of those’ have always turned out to be right.”
1. Why is Hollywood so occupied with the multiverse?| A．It makes for engaging plots. |
| B．It is a much-talked-about topic. |
| C．It is helpful to popularize science. |
| D．It dominates the mainstream pop culture. |
| A．Out of date. | B．Out of place. | C．Out of nowhere. | D．Out of question. |
| A．it can be detected somehow |
| B．it can be reasoned logically |
| C．it can be interpreted philosophically |
| D．it can be predicted by mathematics equation |
| A．Doubtful. | B．Dismissive. | C．Unclear. | D．Approving. |
Meagan and her close friend Samantha, both school teachers, lived together in an apartment in Denver. On mornings when Samantha had class, Meagan would help to watch her 2-year-old daughter, Hannah. Also part of the household was Meagan’s pet, Willie, a particularly intelligent and chatty parrot.
Willie was indeed funny and a good talker. In addition to some vocabulary learned from Meagan, he became a great mimic (会模仿的动物) of cats, dogs, and chickens. Plus, he could sing along to the radio. The bird was a nice playmate for the little girl, and he always knew how to lift her spirits. The bird was more than just a pet; he was a member of the family.
One day, with Samantha at school, Hannah had comfortably positioned herself in front of morning cartoons while Meagan was busy cooking in the kitchen, preparing the little girl her favorite breakfast treat, an apple pie. When Meagan was done baking the apple pie, she placed it at the center of the kitchen table to cool. She looked at Hannah and, confident the child was fully engaged with the TV, walked out of the kitchen quickly to use the bathroom.
Meagan was gone maybe 30 seconds. And suddenly, she heard the bird going crazy, screaming loudly. She heard two very distinct words from the parrot’s mouth. “Mama! Baby!” Repeated over and over again. “Mama! Baby! Mama! Baby!”
Meagan ran out of the bathroom to find Hannah in the kitchen, holding the partly eaten apple pie, fighting for breath, her face and lips a terrifying shade of blue. And Willie was still screaming loudly.Hannah had climbed up on a chair, gotten the apple pie from the kitchen table and was clearly choking on it.
注意: 1.续写词数应为150左右；2.请按如下格式在相应位置作答。
With a pounding heart, Meagan grabbed Hannah immediately.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Around lunchtime, Samantha came back from school.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7 . My photographs are the items I would definitely take or guard in case of an emergency. But what else? This was the question I asked myself as a
Unlike some friends and
Because when you hear the roar of the winds, or when something
As
Months and years after the hurricane, I often told people that there are two parts to
But we will do it,
| A．flood | B．drought | C．wildfire | D．hurricane |
| A．hosts | B．partners | C．relatives | D．architects |
| A．applying | B．packing | C．exchanging | D．delivering |
| A．sign | B．gap | C．clue | D．summary |
| A．kit | B．gym | C．space | D．greenhouse |
| A．rests | B．erupts | C．carves | D．cracks |
| A．cheap | B．expensive | C．graceful | D．economic |
| A．destruction | B．appreciation | C．challenge | D．determination |
| A．as usual | B．as follows | C．as scheduled | D．as promised |
| A．annoyed | B．amazed | C．confused | D．frightened |
| A．escaped | B．protested | C．identified | D．processed |
| A．causing | B．preventing | C．surviving | D．suffering |
| A．cutting out | B．putting back | C．giving up | D．working out |
| A．devotedly | B．creatively | C．individually | D．dependently |
| A．in favor of | B．in times of | C．in need of | D．in search of |
I woke up to the sound of rumbling (隆隆声). At first, I thought it was thunder, but then I felt the ground shake beneath me. I sat up in bed, my heart pounding in my chest. It took a few moments for me to realize what was happening — an earthquake. I had always heard stories about earthquakes, but I had never experienced one myself. I knew that I needed to act fast to ensure my survival.
The room was shaking violently, and I struggled to keep my balance. I quickly got out of bed and tried to make my way to the door. I stumbled and fell a few times, but I managed to make it to the door and open it.
As I stepped outside, I met with chaos. The ground was still shaking, and I could hear the sound of buildings collapsing in the distance. People were running in all directions, screaming and crying. I knew that I needed to find a safe place to take cover.
I remembered reading that doorways were one of the safest places during an earthquake, so I made my way to the nearest doorway and waited there. The ground continued to shake, and I had never felt so scared in my life.
After what seemed like an eternity (永恒), the shaking finally stopped. I cautiously stepped out of the doorway, looking around at the destruction that the earthquake had caused.Buildings had crumbled to the ground, and fires were burning in the distance. I remembered that I had a survival kit in my car, so I made my way to the parking lot.
When I got there, I saw that my car had been crushed by debris (碎片) from a nearby building. I realized that I was on my own. I knew that I needed to stay calm and think rationally. I looked around and saw a group of people huddled together across the street. I made my way over to them, and they welcomed me into their group.
注意：
1．续写词数应为150个左右；
2．请按如下格式在相应位置作答。
Together, we worked to find a safe place to take shelter.
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Eventually, after a few days, help arrived, and we were brought to safety.
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9 . This is the time of year when many gardeners are harvesting tomatoes. Gardening expert Jessica Damiano recently reported about the many pictures of strangely shaped tomatoes sent to her from fans of her gardening advice.
Not every tomato on an affected plant will be deformed (改变形状), however. What are the possibilities? Under the right conditions (temperatures that are too hot or even too cold), this could affect one or two tomatoes per plant, depending on where they are in the development process and what the (weather) conditions are, said Timothy McDermott, a professor at Ohio State University. The possibility of one of your tomatoes developing a locule oddity (怪异) is about one in a thousand, McDermott said.
And, when harvesting your crop, remember:
| A．select the good-looking ones. |
| B．Any tomato can grow an extra locule. |
| C．the funny-looking tomatoes taste just as good! |
| D．What causes the unusual appearance of tomatoes? |
| E．Unless otherwise diseased, they are perfectly good for eating. |
| F．She said people sometimes question if the tomatoes are okay to eat. |
| G．Provide shade for your plants when temperatures are predicted to remain above 32℃. |
10 . Cancer-fighting genes in elephants could help tackle one of the biggest killers of people, according to research. Despite their large bodies and long lifespans, elephants are much less likely to die from cancer than humans, with death rates of less than 5 percent.
The paradox has puzzled scientists because more cells lead to greater replications (复制), which increases the possibility of the body failing to detect damaged DNA or a faulty cell that can result in tumors(肿瘤). Elephants live for almost as long as humans and weigh up to five tons.
However, a group of British and European scientists say they have taken a big step towards solving Peto’s paradox, named after the British epidemiologist Sir Richard Peto. Elephants, they say, carry a much larger more diverse group of tumor-fighting proteins.
The findings, published last week in the journal Molecular Biology and Evolution, raise hopes that the cancer fighting genes in elephants could be the key to tackling cancer, which kills about 167, 000 Britons yearly. Cells keep dividing throughout an organism’s life, each carrying the risk of producing a tumor. One of the body’s weapons is a gene called p53 known as the “guardian of the genome”, which hunts cells with faulty DNA. It encourages the cell to repair itself or self-destruct, keeping the cell from combining with others and producing tumors.
Humans have two versions of p53 but elephants have 40, said the researchers. Biochemical analysis and computer simulations also showed that an elephant’s p53 genes are structurally slightly different, providing a much larger anti-cancer toolkit. The researchers suspect that while faulty cells might be able to skirt two p53 versions, they cannot combine with other cells as easily in the face of dozens.
The findings will open the way for research on how p53 genes of elephants are activated and on medical treatment for humans.
1. What has puzzled scientists?| A．Few elephants end up dying from cancer. | B．Elephants live long and weigh enormously. |
| C．More cells lead to higher chances of tumors. | D．A larger body is less likely to discover faulty cells. |
| A．How many Britons die each year. | B．How the anti-cancer gene works. |
| C．How the research was carried out. | D．What the findings have been applied to. |
| A．Strengthen. | B．Detect. | C．Escaped. | D．Cure. |
| A．Scientists find elephants live longer than humans. | B．P53 genes play essential role in preventing cancer. |
| C．Elephant genes could be key to fighting cancer. | D．Groundbreaking treatment for cancer is on the way. |
