1 . Are you facing a situation that looks impossible to fix?
In 1969,the pollution was terrible along the Cuyahoga River Cleveland, Ohio. It
But the river wasn’t changed in a few days
Maybe you are facing an impossible situation. Maybe you have a habit
While there are
2 . After years of heated debate, gray wolves were reintroduced to Yellowstone National Park. Fourteen wolves were caught in Canada and transported to the park. By last year, the Yellowstone wolf population had grown to more than 170 wolves.
Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States, but they were gradually displaced by human development. By the 1920s, wolves had practically disappeared from the Yellowstone area. They went farther north into the deep forests of Canada, where there were fewer humans around.
The disappearance of the wolves had many unexpected results. Deer and elk populations — major food sources (来源) for the wolf — grew rapidly. These animals consumed large amounts of vegetation (植被), which reduced plant diversity in the park. In the absence of wolves, coyote populations also grew quickly. The coyotes killed a large percentage of the park’s red foxes, and completely drove away the park’s beavers.
As early as 1966, biologists asked the government to consider reintroducing wolves to Yellowstone Park. They hoped that wolves would be able to control the elk and coyote problems. Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.
The government spent nearly 30 years coming up with a plan to reintroduce the wolvers. The U.S. Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone. Today, the debate continues over how well the gray wolf is fitting in at Yellowstone. Elk, deer, and coyote populations are down, while beavers and red foxes have made a comeback. The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
1. What is the text mainly about?| A．Wildlife research in the United States. |
| B．Plant diversity in the Yellowstone area. |
| C．The conflict between farmers and gray wolves. |
| D．The reintroduction of wolves to Yellowstone Park. |
| A．Damage to local ecology. |
| B．Preservation of vegetation. |
| C．A decline in the park’s income. |
| D．An increase in the variety of animals. |
| A．Doubtful. | B．Uncaring. | C．Positive. | D．Disapproving. |
3 . As the effects of climate change become more disastrous, well-known research institutions and government agencies are focusing new money and attention on an idea: artificially cooling the planet, in the hopes of buying humanity more time to cut greenhouse gas emissions.
That strategy, called solar climate intervention (干预) or solar geoengineering, involves reflecting more of the sun’s energy back into space — abruptly reducing global temperatures in a way that imitates the effects of ash clouds flowing out from the volcanic eruptions. The idea has been considered as a dangerous and fancied solution, one that would encourage people to keep burning fossil fuels while exposing the planet to unexpected and potentially threatening side effects, producing more destructive hurricanes, wildfires floods and other disasters.
But. as global warming continues, producing more destructive hurricanes, wildfires floods and other disasters, some researchers and policy experts say that concerns about geoengineering should be outweighed by the imperative to better understand it, in case the consequence of climate change become so terrible that the world can’t wait for better solutions.
One way to cool the earth is by injecting aerosols (气溶胶) into the upper layer of the atmosphere. where those particles reflect sunlight away from the earth. That process works, according to Douglas MacMartin, a researcher at Cornell University.
“We know with 100% certainty that we can cool the planet,” he said in an interview. What’s still unclear, he added, is what happens next. Temperature, MacMartin said, is an indicator for a lot of climate effects. “What does it do to the strength of hurricanes?” he asked, “What does it do to agriculture production? What does it do to the risk of forest fires?”
Another institution funded by the National Science Foundation will analyze hundreds of simulations of aerosol injection, testing the effects on weather extremes around the world. One goal of the research is to look for a sweet spot: the amount of artificial cooling that can reduce extreme weather events without causing broader changes in regional rainfall patterns or similar impacts.
1. Why do researchers and government agencies work on cooling the earth?| A．To prevent natural disasters. | B．To win more time to reduce gas emissions. |
| C．To imitate volcanic eruptions. | D．To encourage more people to bur fossil fuels. |
| A．More volcanoes will throw out. |
| B．More solar energy will go into space. |
| C．More disasters will endanger the future of the world. |
| D．People will keep burning fossil fuels to keep warm. |
| A．He thinks more research remains to be done. |
| B．He is optimistic about the effect of cooling the earth. |
| C．He is concerned about the reduction in agriculture production. |
| D．He disapproves of the practice of solar climate intervention. |
| A．The rainfall pattern of a region. |
| B．The modest drop in temperature. |
| C．The number of extreme weather events. |
| D．The injection amount of aerosol. |
4 . How to Reduce Gift Wrap Waste
Wrapping paper may have “paper” in its name, but that doesn’t automatically mean it can be recycled.
Reuse what you have.
Use different materials.
Ask for better paper. Shops store what customers want, and recyclability should be a top priority, so let that be known when you’re out shopping. As explained by Simon Ellin, CEO of the Recycling Association, a trade body that represents about 90 waste management companies and paper merchants in the United Kingdom, “It’s a campaign we’ve been on all year — do you really need to design a non-paper wrapping paper? Make paper with recycling in mind!”
| A．Try zero waste. |
| B．Shop with that in mind, too. |
| C．You don’t have to choose shining paper to decorate a present. |
| D．In fact, many types of wrapping paper cannot due to their materials. |
| E．When wrapping paper is extremely thin, it has few good quality fibers for recycling. |
| F．Wrapping paper can be used many times if care is taken to unwrap it without tearing. |
| G．Having a mix of recyclable and non-recyclable papers is a real problem for companies. |
China was once the world’s biggest recipient of overseas trash. Because of a
6 . Would you like to do something to help make our city a better place to live in? Why not take part in “Clean & Green weekend”? Join us, and you can make new friends and help protect the environment at the same time.
Park Life
Do you like playing and relaxing in the park with your friends? If so, why not take the chance to come with us and tidy up the park when you go? To add some fun, there is a gift for the person who collects the most rubbish! Meet us at the south entrance to Taohe Park at 9 a. m. next Saturday if you want to join in.
The Air You Breathe
A great way to make the air we breathe cleaner is by planting lots of trees! It is a fact that trees slowly filter (过滤) a lot of pollutants (污染物) from the air. So come and help us plant some new ones in Fenhe Park at 2 p. m. next Sunday.
War on Graffiti (涂鸦)
Some people think graffiti is cool. Well, it is not! The best way to stop buildings from becoming totally covered in ugly graffiti is to fix it as soon as possible. And that is exactly what we are going to do. We are repainting the school walls from 1 p. m. on Saturday. You don’t have to bring any tools, just remember to wear some old clothes!
1. The main purpose of “Clean & Green Weekend” is to ________.| A．make our city more beautiful | B．offer the chance to have fun |
| C．help students meet old friends | D．have a nice weekend |
| A．By tidying the park. | B．By planting trees. |
| C．By repainting the school walls. | D．By protecting the environment. |
| A．draw pictures well | B．bring some tools with us |
| C．wear some old clothes | D．wear some new clothes |
7 . In 1998, people in Na Doi, a quiet village in northwest Thailand, noticed that their fish catches in the nearby Ngao River were declining. The fish they did manage to net were also getting smaller. Together, Na Doi’s 75 households decided to try a new solution: they would set aside a small stretch of river to be strictly off-limits to fishing.
The rules are usually simple: no fishing of any kind in an agreed-upon area marked by flags or signs. While freshwater reserves won’t solve everything, in places where fish populations are under pressure, they can give species much-needed breathing room to rebuild their numbers, ultimately making them better able to weather other environmental problems.
Na Doi was the second village in the Ngao River valley to adopt this pioneering approach to freshwater fisheries management. Since the late 1990s, at least 50 other villages there have done the same. As a whole, the entirely grassroots-led reserves have been surprisingly successful, according to findings recently published in Nature. Most importantly, the Thailand case provides probably the best real-world proof that fisheries reserves can benefit not just oceans, but freshwater, too
In 2012. Aaron Koning, then a doctoral student at the University of Wisconsin, began investigating the Ngao River valley reserves to see how widespread and successful they truly were. Koning found, not surprisingly, that older and bigger reserves were more successful, because they offered more time and space—including more kinds of habitat—in which to rebuild fish populations and re-establish rare species. But even reserves established in the last couple of years showed clear benefits from being spared intense fishing pressure. “Reserves that were located closer to a village tended to have an advantage,” Koning says, “probably because villagers were better able to enforce the rules.”
By comparing different systems and approaches around the world, Koning and his colleagues hope to identify common factors for success that could be tailored to diverse rivers and lakes.
1. What drove Na Doi to create freshwater reserves?| A．The declining of the freshwater. |
| B．The success of the nearby villages. |
| C．The increasing fish populations. |
| D．The worsening of the fishing conditions. |
| A．Fisheries reserves are helpful in freshwater. |
| B．Thailand is a pioneer in fisheries management. |
| C．The Thailand approach has been applied worldwide. |
| D．Many fish species need to rebuild their numbers, |
| A．had better rules | B．were bigger and older |
| C．had more fish populations | D．were created more recently |
| A．Grassroots-led Reserves Inspire the Worlds |
| B．Fisheries Reserves Benefit Thailand Rivers |
| C．Investigate the Ngao River Valley Reserves |
| D．Na Doi Is Leading Thailand to a Better Future |
8 . The problem of global warming has caused a lot of people to get started on increasing their battles to save the Earth's ecological system. The trouble is that nearly all people think it even expensive to begin living green. Continue reading to see several immediate things you can do to get on the road to living green.
You can get on a great start by learning to recycle. While this appears really simple, there are many people who still throw glass bottles and aluminum（铝）cans into their common garbage. In the US, it's easy to locate a trash service that has glass and aluminum recycling alternatives. If you take a few seconds to wash the cans and bottles and put them in the recycle bin, you will be on the path to saving the Earth.
One more big waste product is newspapers. Majority of people will merely take their newspaper and throw it in the garbage when they finish reading it. Still there are many other things you can do with an old newspaper when you finish reading it. For instance, newspapers make terrific material for cleaning windowpanes. You can clean your windows with newspapers rather than paper towels and window cleaner for a streak-free shine.
What else you can do to get started living green is to start walking a bit more. Many people think nothing of getting in their car and driving one block to get soda at the local convenience store. If you merely walk to the store, not only could it take less time, because you won't have to try to find a parking place, but you will be saving money on petrol and helping to save the planet by not burning those fuels. If you wish to save even more on fuel, take the chance to join the car pool whenever you can and just mow your lawn twice a month instead of weekly.
1. What is the main purpose of Paragraph 1?| A．To tell us that many people are living green. |
| B．To express worries about global warming. |
| C．To call on people to live an easy life. |
| D．To advise people to learn how to live green. |
| A．many people can't recycle glass bottles properly |
| B．cans and bottles are usually washed before recycled |
| C．it is rather difficult to recycle cans and bottles |
| D．people would like to throw the wastes everywhere |
| A．a pool where cars can park |
| B．a good way to avoid traffic jams |
| C．a group of people sharing the same car |
| D．an organization to protect the environment |
| A．It may cost us much more to live a green life. |
| B．Going green is much simpler than people think. |
| C．A lot of things can be reused in our life. |
| D．People are living a much better life than before. |
9 . A WeChat mini-program for the Beijing 2022 Winter Olympic Games was officially launched on July 2.
To actively respond to the global climate change, reducing carbon emission and achieving carbon neutrality (碳中和) has become a must in major international sports events.
The Beijing 2022 has always remained committed to being green, low-carbon and sustainable, from its bidding to preparation.
| A．It will be popular among many international experts. |
| B．It will open an individual carbon account for each user. |
| C．More importantly, it contributes to a greener sport event. |
| D．Different amounts of carbon points are based on how low-carbon the activities are. |
| E．It has continuously made breakthroughs in low-carbon energy, venues, and transportation. |
| F．Carbon neutrality refers to taking steps to balance carbon emissions from human activities. |
| G．In the past, major sports events usually achieved this through forestry management, and renewable projects. |
10 . The River Thames has some of the highest recorded levels of microplastics for any river in the world.
Scientists have estimated that 94,000 microplastics per second flow down the river in places. The quantity is larger than that measured in other European rivers, such as the Danube and Rhine. Tiny bits of plastic have been found inside the bodies of crabs living in the Thames.
Researchers at Royal Holloway, University of London, are calling for stricter regulations on the labelling and disposal of plastic products. They warn that careless disposal of plastic gloves and masks during the coronavirus pandemic might make the problem of plastic pollution worse.
“Taken together, these studies show how many different types of plastic, from microplastics in the water through to larger items of debris physically altering the foreshore, can potentially affect a wide range of organisms in the River Thames,” said Prof Dave Morritt from Royal Holloway, “The increased use of single- use plastic items, and the inappropriate disposal of such items, including masks and gloves, along with plastic- containing cleaning products, during the current COVID-19 pandemic, may well make this problem even worse.”
Many forms of microplastics were found in the Thames, including glitter, microbeads from cosmetics and plastic debris from larger items. Most of the microplastics came from the break-down of large plastics, with food packaging thought to be a significant source. “Flushable” wet wipes were found in high abundance on the shoreline forming “wet wipe reefs”.
Study researcher, Katherine McCoy, said, “Our study shows that stricter regulations are needed for the labelling and disposal of these products. There is great range to further research the impacts of microplastics and indeed microfibres on Thames organisms.”
1. What did the researchers mainly suggest?| A．Stricter regulations should be made. | B．People shouldn't eat crabs for a while. |
| C．People should cut the use of plastic gloves | D．Plastic masks shouldn't be thrown away carelessly. |
| A．Wet wipes. | B．Food packaging. |
| C．Cleaning products. | D．Single-use plastic masks. |
| A．Wildlife Being Threatened by Microplastics. | B．Forms of Microplastics Found in the Thames. |
| C．River Thames Severely Polluted with Plastic. | D．Inappropriate Disposal of Single-use Plastics. |
| A．Science. | B．Environment. | C．Health. | D．Education. |
