1 . Atmospheric (大气层的) rivers are long and narrow bands of water vapor (水蒸气) in Earth’s atmosphere, which are called “large rivers in the sky”. These rivers form over warm ocean waters. They are huge. They can be 930 miles long and one-third that wide.
Like real rivers, they carry huge amounts of water. These large streams of small water drops are blown by wind over land. When that happens, the water vapor cools down and condenses (凝结). Atmospheric rivers can be good. They bring water to dry areas. However, they can cause huge, fast-moving storms. Some cause snowfalls that bury towns. They are also the main cause of floods on the U.S. West Coast.
Atmospheric rivers are hard to predict. But scientists are working to change that. Marty Ralph, a scientist who works at the University of California, directs the Center for Western Weather and Water Extremes (CW3E). They created the first computer model to predict atmospheric rivers on the U.S. West Coast. This model uses a program that runs on a computer to create a model of a real-world event. CW3E also studies atmospheric rivers using planes. Pilots drop instruments into atmospheric rivers to collect information like temperature and wind speed, which helps with forecasting.
Will climate change affect atmospheric rivers? Climate change happens naturally over a long period of time. But today, it is largely caused by human activities and is causing the Earth to warm, which affects atmospheric rivers.
Atmospheric rivers are pushed by the wind. Those winds are driven by the temperature differences between the poles and the equator (赤道). But the poles are also warming faster than areas near the equator. That makes the temperature difference between the areas smaller. This can make winds weaker.
Climate change might not cause more atmospheric rivers. But there may be very, very wet seasons and very, very dry seasons. Such a seesaw in rainfall could make it harder to manage what water there is.
1. What can we learn about atmospheric rivers?| A．They can be 930 miles long and 465 miles wide. |
| B．They are easy to predict as scientists are working on it. |
| C．They are bands of water vapor forming over warm ocean waters. |
| D．They are the main cause of floods in the U.S. |
| A．Why it is hard to predict atmospheric rivers. |
| B．Whether scientists can predict atmospheric rivers. |
| C．How technology helps the prediction of atmospheric rivers. |
| D．How scientists are working on the forecasts of atmospheric rivers. |
| A．Growth. | B．Drop. | C．Prediction. | D．Change. |
| A．A textbook. | B．A science magazine. | C．An academic article. | D．A news report. |
Shanghai, lying in the subtropical zone of monsoon (季风) climate in East Asia,
1. What can we say about the weather on Sunday?
| A．It was fine. | B．It was hot. | C．It was changeable. |
| A．It’s beyond their expectations. |
| B．It’s a common phenomenon. |
| C．It’s caused by climate change. |
4 . During the COP27 climate conference (会议) in Sharm el-Sheikh, Egypt, an important deal on “loss and damage” was reached. This was a big step forward because at COP26 conference in Glasgow, Scotland, there were no talks on loss and damage at all. The plan is that richer countries will pay money into a special fund that will be used to help poor countries.
Loss and damage means the damaging impact of climate change on developing countries. For nearly 30 years, poorer countries have been asking richer countries for money to help to protect communities from the effects of climate change. Richer countries have produced the most greenhouse gases, but poorer countries are often the worst affected by extreme weather conditions because they are less well equipped to face extreme climate events.
Brazil’s newly elected President Luiz Inacio Lula da Silva made a speech about preserving the largest rainforest on Earth, the Amazon. During the last 50 years, more than 17% of the Amazon rainforest has been destroyed to make way for farms and towns. However, in his speech, Lula promised that there would be zero deforestation (伐树) in the Amazon by 2030. The conference didn’t just focus on world leaders. It brought together more than 45,000 people to discuss how climate change is affecting their lives. Climate refugees (难民) also had their voices heard. Tshilombo from the Kakuma refugee camp in Kenya said, “Refugees don’t only flee because of war or conflict. It’s also about drought, the effects of climate change.”
Some countries weren’t happy with the overall outcome of COP27 because decisions weren’t made on cutting the use of fossil fuels, such as coal, gas and oil, etc. The UK Government’s Alok Sharma said, “I’m incredibly disappointed.”
However, this deal was a great achievement for developing countries. Sherry Rehman, the climate minister for Pakistan, said, “I am confident we have tuned a comer in how we work together to achieve climate goals.”
1. What is a successful outcome of the COP27 climate conference?| A．The deal on loss and damage. |
| B．The deal on using fossil fuels. |
| C．The deal on rainforest preservation. |
| D．The deal on helping climate refugees. |
| A．More greenhouse gases. |
| B．Massive deforestation. |
| C．Shortage of money and supplies. |
| D．Terrible weather conditions. |
| A．Climate change is influencing people’s lives. |
| B．17% of the Amazon rainforest was destroyed. |
| C．Many factors lead to the appearance of refugees. |
| D．There will be less deforestation in the Amazon by 2030. |
| A．Never put off till tomorrow. |
| B．Many hands make light work. |
| C．Knowledge starts with practice. |
| D．No way is impossible to courage. |
5 . Climate change is already affecting water access for people around the world, causing more severe droughts and floods. Climate change impacts the water cycle by influencing when, where, and how much rain falls. It also leads to more severe weather events over time. Increasing global temperatures causes water to rise into the air in larger amounts, which will lead to higher levels of atmospheric water vapor and more frequent, heavy, and intense rains in the coming years.
Climate scientists predict that this shift will lead to more floods since more water will fall than vegetation and soil can absorb. The remaining water, or runoff, flows into nearby waterways, picking up contaminants like fertilizers (肥料) on the way. Too much runoff eventually travels to larger bodies of water like lakes, and the ocean, damaging the water supply and limiting water access for humans and ecosystems.
When fertilizers from farming wash into lakes and the ocean, they promote the rapid growth of algae (藻类). These resulting algal blooms fill coasts and waterways with clouds of green, blue-green, red, or brown algae. They block sunlight from reaching underwater life and reduce oxygen levels within the water. Poisons from the algae can kill off fish and other aquatic animals, make people sick, and even kill humans. These poisons are especially dangerous because they can survive rainfall processes, making tap water unfit to consume once contaminated. Algal blooms also impact industries that rely on the water for business, and often cause local waterfronts to shut down during blooms.
There are many things that everyone can do to lessen the impact of climate change. Some measures include growing your own fruits and vegetables or buying locally grown produce, since produce is often transported to grocery stores from far away by trucks, which add more carbon dioxide to the atmosphere. You could also walk or ride a bike instead of driving a car.
1. What is a consequence of climate change according to paragraph 1?| A．Extreme weather. | B．Water supply. | C．Water cycle. | D．Polluted atmosphere. |
| A．Nutrients. | B．Soils. | C．Pollutants. | D．Organisms. |
| A．Master some ways to do farming work. | B．Buy more foreign fruits and vegetables. |
| C．Have a regular exercise like walking. | D．Form some habits of reducing carbon dioxide. |
| A．Causes of Climate Change. | B．Harm Climate Change Does to Humans. |
| C．Impacts of Climate Change on Water Access. | D．Ways to Lessen the Impacts of Climate Change. |
6 . “A lot of the time when climate change is discussed in mainstream media, people are asking ‘can humans overcome this?’, or ‘what technology can solve this?’. It’s high time we recognized that animals also have to adapt to various changes. We know some animals change their skin colors to escape from natural enemies or due to environment pollution,” says Ryding. “The climate change that we have created is putting a lot of pressure on them, and some species try to adapt by shapeshifting (变形). ”
Strong shapeshifting has particularly been reported in birds. Several species of Australian parrot have shown, on average, a 4%—10% increase in beak (鸟喙) size since 1871, and this is positively linked with the summer temperature each year. North American dark-eyed juncos, a type of small songbird, had a link between increased beak size and short-term temperature extremes in cold environments. There have also been reported changes in mammalian species. Researchers have reported tail length increases in wood mice and leg size increases in masked shrews (鼩鼱).
“The increases in some body parts size we see so far are quite small—less than 10%—so the changes are unlikely to be immediately noticeable,” says Ryding. “However, some body parts such as ears are predicted to increase.”
Ryding intends to investigate shapeshifting in Australian birds firsthand by 3D scanning museum bird specimens from the past 100 years. It will give her team a better understanding of which birds are changing their body parts and why. “Shapeshifting does not mean that animals are coping with climate change and that all is ‘fine’,” says Ryding. “It just means they are adapting to survive it—but we’re not sure what the other ecological consequences of these changes are, or indeed that all species are capable of changing and surviving. ”
1. What may cause animals’ shapeshifting according to Ryding?| A．Human hunting. | B．Climate change. |
| C．Natural enemies. | D．Polluted surroundings. |
| A．Giving examples. | B．Cause-effect analysis. |
| C．Making comparison. | D．Process analysis. |
| A．Animals can well adapt to changes and survive. |
| B．Influence of animals’ shapeshifting is uncertain. |
| C．Rdying will research into bird museums in Australia. |
| D．All adaptations of animals to climate change are beneficial. |
| A．Technology. | B．Health care. | C．Environment. | D．Education. |
7 . Alaska’s Yukon River has faced major salmon shortages in recent years. Officials say record-high temperatures last year killed most salmon in the 3,200-kilometer river before the fish were able to reproduce. The losses led Alaska to stop their salmon harvests in 2021 to make sure that enough fish survived to reproduce for another year.
The poor salmon harvests caused major financial losses to private fishing companies in the area. The die-offs also hurt native communities, which traditionally store the fish as a year-round food supply.
Last month, the U.S. Department of Commerce declared a disaster for Yukon River fishing for 2020 and 2021, making aid money available. Alaska has sent emergency fish shipments to areas affected by the salmon shortages.
Scientists have mostly blamed the problems on a series of heat waves in the Bering Sea and North Pacific Ocean from 2014 to 2019. The warm ocean waters affected salmon’s living in the sea before they returned to lay eggs.
Climate change may also be affecting what the salmon are eating. Fishing experts say young salmon are likely filling up on nutrient-poor food because warmer waters drive away healthier organisms (有机物) they normally feed on. “In my opinion, the salmon are starving with climate change,” said Brooke Woods in the Yukon River Inter-Tribal Fish Commission.
The effects of climate change on freshwater environments have also been studied. Vanessa von Biela is a biologist who looked at the rivers, streams and lakes where salmon live. Her team found that Chinook salmon show heat stress at temperatures above 18℃. They start dying above 20℃. In 2019, temperatures on the Alaskan side were above 18℃ for 44 straight days, a recent study found.
The effects of warming waters can be reduced by climate-driven glacier (冰川) runoff, which brings cooler water into rivers and streams. But scientists still expect salmon to begin slowly moving to new areas within Alaska. “Salmon will find a way,” said Biela. “but it’s going to be hard for communities in places where there might not be salmon anymore.”
1. What do the locals rely on salmon for?| A．Food supply. | B．Scientific study. | C．Green tourism. | D．Water improvement. |
| A．Financial losses. | B．Relief funds. | C．Economic growth. | D．Fast delivery. |
| A．No healthy organisms are left there. | B．Salmon there lose the ability to lay eggs. |
| C．Salmon there go short of nutritious food. | D．The temperature remains above 18℃ till now. |
| A．Measures to protect salmon are effective. | B．Salmon will not find a way out of the crisis. |
| C．The amount of salmon will increase greatly. | D．Salmon are likely to leave the river for survival. |
1. What is the main topic of the talk?
| A．Crop harvest. | B．Hot weather. | C．Food quality. |
| A．The same as last year. |
| B．Twice as much as last year. |
| C．Three times as much as last year. |
| A．Apples. | B．Peaches. | C．Oranges. |
| A．Profits are lower. |
| B．Quality is lower. |
| C．Prices are lower. |
9 . Scientific reports show the destructive effects of climate change, but many scientists say it is important to remain positive. If the world continues to change, don’t give up, and we can still prevent some of the worst effects of climate change.
Recently, however, many scientists are dealing with the feeling of doom about climate change or “doomism.” Jacquelyn Gill is a climate scientist at the University of Maine. She says that around 2018 she noticed an increase in these “doomers,” or people who think that saving the earth is hopeless. They refuse to change their behavior or consider how they can work to prevent climate change.
The United Nation’s Intergovernmental Panel on Climate Change (IPCC) recently published its third report. This report explained the damage caused by the burning of traditional fuels, like oil and coal. New investments in traditional fuels and removal of forests for farming are preventing the world from helping stop climate change.
Anderson is the Environment Program Director for the United Nations. She says officials are trying to get people to take action because there is a climate crisis. Their goal is not to scare people into doing nothing.
“We are not doomed, but rapid action is absolutely essential. With every month or year that we delay action, climate change becomes more complex, expensive and difficult to overcome,” Andersen said.
The UN IPCC report stated that without fast and extreme measures to cut carbon pollution, the world is not likely to limit warming to 1.5 degrees Celsius. The global temperature has already increased by 1.1 degrees Celsius. After 1.5 degrees, climate change will quickly worsen causing environment to be in danger. It will cause an increase in weather disasters.
James Skea is a leader from the UN IPCC Report. “We don’t fall over the cliff at 1.5 degrees. Even if we were to go beyond 1.5, it doesn’t mean we throw up our hands in despair,” Skea said.
Michael Mann is a climate scientist at Pennsylvania State University. He says that scientists used to think Earth would continue to warm decades after we balance emissions. Balancing emissions to net zero means not creating more carbon in the atmosphere than oceans and forests can remove. New research suggests that it will only take a few years to decrease carbon levels in the air after we balance emissions.
1. What is the writer’s attitude towards climate change?| A．Optimistic. | B．Pessimistic. | C．Cautious. | D．Objective. |
| A．The change of people’s behaviors. |
| B．The damage caused by human activities. |
| C．The sharp increase in number of doomers. |
| D．The measures to help stop climate change. |
| A．The significance of UNIPCC third report. |
| B．The difficulties of decreasing carbon levels. |
| C．Scientists’ optimistic attitude towards climate change. |
| D．The need to take immediate actions against climate change. |
10 . The South American nation of Chile has been experiencing bad droughts for the last 13 years. This serious lack of water has led to fewer flowers and, as a result, fewer honeybees. Some chemicals used to kill insects harmful to crops called pesticides (杀虫剂), also hurt bees.
Beekeepers in Chile are concerned. Carlos Peralta and his brother Marco are beekeepers. Carlos has seen the number of his honeybees dropping sharply. He said he had lost about 300 hives (蜂巢) since the start of November 2021. A hive can hold tens of thousands of bees. Losing so many bees left Peralta with a difficult choice. He could keep his remaining 900 hives alive with man-made honey, or he could move the hives to a place where there are more flowers. “If the bees die, we all die… The bee is life,” Carlos said. He was describing the important job that bees have to pollinate (授粉) plants in the wild and for food growers.
So Carlos decided to move his beehives about 1, 000 kilometers to the south, to a place called Puerto Montt. However, his brother Marco chose to stay in Colina with his bees rather than join Carlos in the south. Marco said he feared losing bees to pesticides if he moved.
An FAO study in 2018 found that Chile’s introduction of pesticides had grown by 460 percent over the previous 20 years. Beekeepers blame (责备) this increase for their losses. Chile’s honey exports (出口) have dropped over the past four to five years.
Carlos Peralta said, “You enter a fruit garden with your bees and you don’t know if you'll come out with living bees or dead ones.”
His brother Marco has been feeding his bees with sugar water. However, this food leaves the bees unable to produce honey. “The bees grow weak with sugar water,” said Mario Flores.
Before the drought, beekeepers would use the sugar food during the winter months. But now they use it almost all year.
1. What does Carlos think of the survival of bees according to paragraph 2?| A．It is related to beekeepers’ skill. | B．It is a matter of life and death for him. |
| C．It is important to the water system. | D．It is a must for his country’s exports. |
| A．To save the cost of moving. | B．To benefit the plants nearby. |
| C．To avoid harmful chemicals. | D．To leave the chance to his brother. |
| A．Their health can be harmed. | B．They gather more honey. |
| C．They are too full to work. | D．Their honey is of poor quality. |
| A．Dry Conditions and Poisonous Chemicals Are Killing Bees |
| B．Nature Balance of Chile Is Being Destroyed by Beekeepers |
| C．Harmful Chemicals Are Bringing Danger to Living Things |
| D．Two Brothers’ Different Ways to Keep Bees Have Different Results |
