1 . Think about what you like to wear on the weekend. There’s a good chance that you like to put on a pair of blue jeans（牛仔裤）. At any moment, about half of the world’s population is wearing jeans. But according to a new study, our love for jeans may be bad for earth. The cloth used to make jeans might be putting some sea animals in danger. Every time we wash our jeans, small bits of it will flow out of our washing machines and into the world’s rivers, lakes and sea.
You might wonder: isn’t the cloth made of something natural? How can it become a danger to nature? Well, when making jeans, the cloth is treated with many types of man-made chemicals. Scientists aren’t yet sure how the chemicals（化学品） in the cloth might harm animals.
In the study, the scientists also washed jeans to see how many bits of the cloth on average each pair would drop per wash. The answer was worrying: about 50,000. Not all of them make their way into the environment. Wastewater treatment plants hold back 83 to 99 percent of them. This may sound pretty good. However, one percent of 50,000 are still 500 per wash. Now think about the number of jeans around the world and the times each of them gets washed. As a result, a large amount of the cloth still gets into the environment.
Does this mean we shouldn’t wear jeans? Probably not. “We need to buy fewer clothes and only wash them when we truly need to do it,” says Sam Athey, one of the scientists. “You don’t need to wash your jeans after having worn them only a few times.”
1. What does the underlined word “it” in paragraph 1 refer to?| A．The danger. | B．The cloth. | C．The earth. | D．The sea animal. |
| A．There is a large amount of wastewater. |
| B．There is more cloth thrown by people. |
| C．There is too much rubbish created by the cloth. |
| D．There are lots of chemicals which are harmful to animals. |
| A．we should not wear jeans | B．we should not buy clothes |
| C．we should wash the clothes less often | D．we should wash the clothes every day |
| A．History and Culture. | B．Sports and Health. |
| C．Science and Technology. | D．Environment and Life. |
2 . Flash droughts develop fast, and when they hit at the wrong time, they can ruin a region’s agriculture. They’re also becoming increasingly common as the planet warms. In a study published in the journal Communications Earth& Environment, we found that the risk of flash droughts, which can develop in just a few weeks, is on the rise in every major agricultural region around the world in the coming decades.
In North America and Europe, cropland that had a 32% annual chance of a flash drought a few years ago could have a greater chance of a flash drought by the final decades of this century. That result would put food production, energy, and water supplies under increasing pressure. The cost of change will also rise. A flash drought in the Dakotas and Montana 2017 caused $2.6 billion in agricultural damage in America alone.
All droughts begin when rainfall stops. What’s interesting about flash droughts is how fast they strengthen themselves, with some help from the warming climate. When the weather is hot and dry, soil loses moisture rapidly. Dry air extracts moisture from the land, and rising temperatures can increase this evaporative (蒸发的) demand. The lack of rain during a flash drought can further contribute to the feedback processes. Under these conditions, crops and vegetation begin to die much more quickly than they do during typical long-term droughts.
In our study, we used climate models and data from the past 170 years to assess the drought risks ahead under three conditions for how quickly the world takes action to slow the pace of global warming. If greenhouse gas emissions from vehicles, power plants, and other human sources continue at a high rate, we found that cropland in much of North America and Europe would have a 53% annual chance of flash droughts, by the final decades of this century. Globally, the largest increases in flash droughts would be in Europe and the Amazon. Slowing emissions can reduce the risk significantly, but we found flash droughts would still increase by about 6% worldwide under low emission conditions.
1. What is the feature of flash droughts?| A．Seldom happen and greatly beneficial. | B．Frequently happen and low risky. |
| C．Suddenly happen and highly destructive. | D．Regularly happen and slightly harmful. |
| A．Crops and vegetation die more quickly during long term droughts. |
| B．Slowing emissions can completely solve the problem of flash droughts. |
| C．In Europe cropland will suffer from more flash droughts by the end of this century. |
| D．Flash droughts won’t have any effect on food production, energy, and water supplies. |
| A．Adequate rainfall. | B．The warming climate. |
| C．The cold and wet weather. | D．Long-term droughts. |
| A．By studying climate models. | B．By speeding up global warming. |
| C．By changing cropland into forests. | D．By decreasing greenhouse gas emissions. |
3 . As AI becomes popular, researchers have noticed its influence on the environment. Training an AI system requires huge computing power and electricity, and the resulting CO2 emissions (排放) are one way AI affects the environment. But its environmental effect is more than its carbon (碳)footprint.
Jesse Dodge, a scientist at the Allen Institute, says, "The influence of Al systems is going to be from their applications, not the cost of training them." David Rolnick, a computer scientist at McGill University, compares AI to a hammer (锤子) “The main effect of a hammer is what is being hammered,” he says, "not what is in the hammer." Just like a hammer which can either destroy things or build a house, Al can hurt or help the environment.
In 2019, ExxonMobil, an oil company, said it would use Microsoft’s app Azure. With the Al technology, it would increase its production and create billions of dollars. This means Microsoft's AI is directly contributing to greenhouse gas emissions. This is not the only AI application that could be environmentally harmful. AI behind the ads that jump out on Instagram or Facebook pages pushes customers to spend more on products like clothes. This in turn causes more emissions through more production and delivery.
But on the other side of the coin, there are AI applications that can help deal with environmental problems, such as the destruction caused by hurricanes. One such application is xView2, a program started by a U. S. organization. It can recognize buildings damaged and people trapped in natural disasters, reducing danger and saving time for rescuers.
AI could be a valuable tool in the fight against climate change—if the Al industry can reduce its harmful climate effects. "Both AI and climate rules have roles to play." Rolnick says. When creating Al rules, he suggests considering its applications, emissions, and other production costs. Further, Dodge adds that those AI professionals should help set up some value systems to limit the technology's use.
1. Where does the effect of AI systems on the environment come from according to Dodge?| A．The popularity of AI. | B．The emissions of CO2. |
| C．The way of applying AI. | D．The cost of AI training. |
| A．By listing numbers. | B．By giving examples. |
| C．By comparing facts. | D．By explaining details. |
| A．Rules for AI can be helpful. | B．Al's advance should be limited. |
| C．Production costs will be lower. | D．AI plays a role in making rules. |
| A．AI applications are environmentally harmful. |
| B．AI affects the environment by CO2 emissions. |
| C．AI is effective in solving environmental problems. |
| D．AI's environmental effect goes beyond its emissions. |
4 . 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℃. |
5 . Joseph Dituri hasn’t seen the sun for days. The biomedical engineer has been underwater, with the goal of spending 100 days there in the name of
The submerged stay, if
During the project, Dituri is attempting to
Beyond research, the project is also a chance to promote ocean
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| A．reputation | B．freedom | C．science | D．entertainment |
| A．publish | B．conduct | C．advertise | D．review |
| A．necessary | B．convenient | C．accessible | D．successful |
| A．forecast | B．document | C．imagine | D．relieve |
| A．extended | B．busy | C．early | D．essential |
| A．informed | B．persuaded | C．monitored | D．satisfied |
| A．sensitive | B．subjected | C．familiar | D．restricted |
| A．remember | B．realize | C．suppose | D．admit |
| A．cautiously | B．intentionally | C．fearlessly | D．groundlessly |
| A．costs | B．difference | C．practicality | D．benefits |
| A．make for | B．hold over | C．refer to | D．depend on |
| A．conservation | B．expansion | C．tourism | D．transport |
| A．dampen | B．express | C．stimulate | D．appreciate |
| A．Now that | B．In case | C．Provided that | D．Even if |
| A．win | B．burden | C．shame | D．lesson |
6 . Do you know that the oldest tree is a 5, 000-year old bristlecone pine (狐尾松) located in the forests of Nevada? Unfortunately, many of these precious old-growth trees are starting to disappear from our planet. The term old-growth refers to trees that are 150 years or older. This means that many of the trees on the Earth today are younger, smaller, and have shorter lifespans.
As the Earth’s temperature warms up due to climate change, it is having unintended effects on the world’s forests. When temperatures rise, trees close their pores (气孔) to prevent the loss of moisture, and this, in turn, slows down the process of photosynthesis (光合作用). As a result, these trees are shorter and grow slowly, as well as have a high deathrate. Climate change also increases the possibility of droughts and wildfires. After wildfires, it takes a while for the forest ecosystems to recover, and in some cases, the forests are lost permanently. Trees that are stressed are also susceptible (易受影响的) to attacks by bacteria (细菌). Finally, humans have changed the forest landscape through logging (伐木).
There are some who claim that increased greenhouse gas emission is helping trees grow faster because CO2, is needed for photosynthesis. While some younger trees may benefit from this, we are seeing significantly more loss of forests than gain.
Old-growth forests are a storehouse of carbon, and when they die, the stored CO2, is released into the air worsening the greenhouse effect. Older forests have higher biodiversity, which is beneficial as each organism has a role to play and there is a wide variety of species. As these forests disappear, species that once called them “home” are forced to relocate, affecting the biodiversity of those ecosystems. Unfortunately, some endangered species are unable to adapt and go extinct.
With trees dying continuously, will future generations miss out on the wonders of forests?
1. What is the main idea of the second paragraph?| A．Why bacteria may attack old trees. | B．What leads to the rising temperatures. |
| C．Why old-growth forests are disappearing. | D．How global warming causes natural disasters. |
| A．Species. | B．Older forests. | C．Organisms. | D．Roles organisms play. |
| A．a doubt | B．a warning | C．a blame | D．a suggestion |
| A．To urge people to reduce gas emission. | B．To explain the greenhouse effect on trees. |
| C．To introduce the process of photosynthesis. | D．To call on people to protect old-growth trees. |
7 . 4 Best Places to Travel in 2023
2023 is the year when travel returns in a big way. To get you started, we’ve rounded up some of the best places to travel in 2023. All you need to do is pick the place that appeals to you.
Copenhagen
With its fantastic houses, clean streets and colorful architecture, Copenhagen is regarded as the most livable city on the earth. Named the World Capital of Architecture for 2023, Copenhagen will offer a series of major artistic events and programs sure to delight architects and design lovers.
Bhutan
For travelers with a sense of adventure and a love of discovery, Bhutan has always been a must-go destination. In 2023, travelers can once again explore the Trans Bhutan Trail, which runs 250 miles from east to west, offering visits to the century-old communities along the journey. The trail spans (横跨)18 major bridges and national parks and connects more than 400 historic and cultural sites.
Bordeaux
The coming years will be sporty in the historical wine region of Bordeaux in France. In 2023, the city will host the Rugby World Cup, an intense and stressful game. Beyond sports, Bordeaux is one of the favorite historical cities, with more than 350 structures that are either nationally or regionally listed as historical monuments.
Namibia
Wildlife and adventure lovers looking for a unique path in African Safari trips should head straight to Namibia in 2023 — this country in southern Africa is the perfect place to travel to reconnect with nature and escape the modern stresses of life. On the wildlife front, you may see lions along with giraffes and elephants.
1. What is Copenhagen well-known for?| A．The natural landscape. | B．The adventure travel. |
| C．Eye-catching architecture. | D．Famous art designers. |
| A．Modern communities. | B．Cultural relics. |
| C．Historical wine regions. | D．National monuments. |
| A．Copenhagen. | B．Bhutan. | C．Bordeaux. | D．Namibia. |
The African penguin is expected to go extinct in the wild in just over a decade, given its current population decline. The main reason is a lack of food caused by disturbance to ocean conditions from global heating and
Have you ever noticed how certain smells can call up particular emotions or memories? A whiff of perfume(一阵香水味)or after-shave recalls a favorite person; the delicious smell of warm bread tickles the taste buds(味蕾).
Think about newly cut grass or how the air smells after a thunderstorm. Burning leaves on fresh and cold fall days always remind me of the football at the weekend. Perhaps the smells that surround Christmas carry the most memories. The fresh green smell of pine trees; the fragrances of a variety of food, especially the ones given off by cookies being baked in an oven and hot chocolate. Moreover, the scent of wood smoke around the burning fire can also bring warmth and the comfortable feeling to our mind. It is amazing how much love and laughter they bring into our lives and even how much closer we become with each other because of them.
But the smell I associate best with Christmas and winter is a wet dog. Our dog was mostly an outdoor dog and was often wet completely in the rain. We tried to dry him off as soon as he came in, grabbing the old, dirty towel by the door. He usually shook himself before we could catch him. The walls of the back entry were always spotted with brown mud all winter. We brushed him regularly in spring and summer when winter fur fell out by handfuls, but baths were rare. So, of course, his smell built up over time. Try as we might, we never could completely get rid of that smell. It lay hidden deep in his fur and skin.
The distinctive smell of the wet dog was a reminder of the Christmas vacation when I was twelve, and the cousins from Ohio were visiting. We had gotten shiny, slippery flying saucers as gifts and were also blessed with fresh snow. The four of us spent as much time as possible sliding down the short hill to the pond. Naturally, we tested the ice on the pond before sliding the first day, and we knew we could slide across it and lengthen our ride.
注意：
1．所续写短文的词数应为150左右：
2．续写部分分为两段，每段的开头语已为你写好。
On the third day, we were so eager to play that we did not check it.
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I stepped down the bank carefully to reach him, but the dog was faster.
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10 . According to the Solar Energy Industry Association, the number of solar panels installed(安装)has grown rapidly in the past decade, and it has to grow even faster to meet climate goals. But all of that growth will take up a lot of space, and though more and more people accept the concept of solar energy, few like large solar panels to be installed near them.
Solar developers want to put up panels as quickly and cheaply as possible, so they haven’t given much thought to what they put under them. Often, they’ll end up filling the area with small stones and using chemicals to control weeds. The result is that many communities, especially in farming regions, see solar farms as destroyers of the soil.
“Solar projects need to be good neighbors,” says Jordan Macknick, the head of the Innovative Site Preparation and Impact Reductions on the Environment(InSPIRE)project. “They need to be protectors of the land and contribute to the agricultural economy.” InSPIRE is investigating practical approaches to “low-impact” solar development, which focuses on establishing and operating solar farms in a way that is kinder to the land. One of the easiest low-impact solar strategies is providing habitat for pollinators(传粉昆虫).
Habitat loss, pesticide use, and climate change have caused dramatic declines in pollinator populations over the past couple of decades, which has damaged the U.S. agricultural economy. Over 28 states have passed laws related to pollinator habitat protection and pesticide use. Conservation organizations put out pollinator-friendliness guidelines for home gardens, businesses, schools, cities—and now there are guidelines for solar farms.
Over the past few years, many solar farm developers have transformed the space under their solar panels into a shelter for various kinds of pollinators, resulting in soil improvement and carbon reduction. “These pollinator-friendly solar farms can have a valuable impact on everything that’s going on in the landscape,” says Macknick.
1. What do solar developers often ignore?| A．The decline in the demand for solar energy. |
| B．The negative impact of installing solar panels. |
| C．The rising labor cost of building solar farms. |
| D．The most recent advances in solar technology. |
| A．Improve the productivity of local farms. |
| B．Invent new methods for controlling weeds. |
| C．Make solar projects environmentally friendly. |
| D．Promote the use of solar energy in rural areas. |
| A．To conserve pollinators. | B．To restrict solar development. |
| C．To diversify the economy. | D．To ensure the supply of energy. |
| A．Pollinators: To Leave or to Stay | B．Solar Energy: Hope for the Future |
| C．InSPIRE: A Leader in Agriculture | D．Solar Farms: A New Development |
