1 . Marco Springmann and his colleagues, at the Oxford Martin School's Future of Food Programme, built computer models that predicted what would happen if everyone became vegetarian by 2050. The results indicate that if the world went vegan, the greenhouse gas emissions declines would be around 70%.
In the US, for example, an average family of four emits more greenhouse gases because of the meal they eat than from driving two cars——but it is cars, not steaks, that regularly come up in discussions about global warming.
Food, especially livestock, also takes up a lot of room. 68% of agricultural land in the world is used for livestock. When these lands become grasslands and forests, they would capture carbon dioxide and further ease climate change.
However, if the whole world went vegan, there would be negative effects too. First, it is necessary to keep livestock for environmental purposes. "I'm sitting here in Scotland where the Highlands' environment is very man-made and based largely on grazing by sheep," says Peter Alexander, a researcher in socio-ecological systems modeling at the University of Edinburgh. "If we took all the sheep away, the environment would look different and there would be a potential negative impact on biodiversity. "
Plus, meat is an important part of history , tradition and cultural identity. Numerous groups around the world give livestock gifts at weddings, celebratory dinners such as Christmas with turkey or roast beef.
And nowadays, moderation in meal-eating's frequency and portion size is key to solving these conflicts. "Certain changes would encourage us to make healthier and more environmentally friendly dietary decisions," says Springmann, "like putting a higher price lag on meat and making fresh fruits and vegetables cheaper. "
In fact, clear solutions already exist for reducing greenhouse gas emissions from the livestock industry. What is lacking is the will to implement those changes.
1. What can we infer from the underlined sentence in the second paragraph?| A．Driving cars is more dangerous than eating steaks in the US. |
| B．Our dietary choices affecting climate change is often underestimated. |
| C．People compare the greenhouse gas emissions of the cars and steaks. |
| D．Cars affect the global warming more seriously than the steaks. |
| A．To show the important impact of livestock on the environment. |
| B．To show his work as a researcher in the socio-ecological systems. |
| C．To encourage people to take all the sheep back for environmental purpose. |
| D．To point out the negative impact of the sheep on the biodiversity. |
| A．It is hard to please all. |
| B．Don't put all your eggs in one basket. |
| C．One cannnot see the wood for the trees. |
| D．Everything is a double-edged sword. |
| A．A biology textbook. | B．A health magazine. |
| C．A scientific journal. | D．An educational review. |
When a tornado(龙卷风) touched down in a small town nearby,many families were left completed ruined. Afterward all the local newspapers carried many human-interest stories featuring some of the families who suffered the hardest.
One Sunday, a particular picture especially touched me. A young woman stood in front of an entirely shattered(破碎的) mobile home, a depressed expression on her face. A young boy, seven or eight years old, stood at her side, eyes downward. Clutching(紧握) at her skirt was a tiny girl who stared into the camera, eyes wide with confusion and fear.
The article that went with the picture gave the clothing sizes of each family member. With growing interest, I noticed that their sizes closely matched ours. This would be a good opportunity to teach my children to help those less fortunate than themselves. I stuck the picture of the young family on our refrigerator, explaining their difficulty to my seven-year-old twins, Brad and Brett, and to three-year-old Meghan.
“These poor people now have nothing,” I said. “We’ll share what we have with them. I brought three large boxes down from the room upstairs and placed them on the living room floor. Meghan watched seriously, as the boys and I filled one of the boxes with canned goods and foods.
While I sorted through our clothes, I encouraged the boys to go through their toys and donate some of their less favorite things. Meghan watched quietly as the boys piled up old toys and games.
Meghan walked up with Lucy, her worn, much-loved rag doll hugged tightly to her chest. She came to the box that held the toys, pressed her round little face into Lucy's flat, painted-on-face, gave her a final kiss, then laid her gently on top of the other toys.
“Oh, Honey,” I said.” You don’t have to give Lucy. You love her so much.”
Meghan nodded seriously, eyes filled with held-back tears. "Lucy makes me happy, Mommy. Maybe she’ll make that other little girl happy,too.”
Paragraph. 1:The boys had watched,open-mouthed,as their baby sister placed her favorite doll in the box.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Paragraph. 2:
I looked my children for a long moment.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3 . About 12 million tons of plastic wastes are entering the oceans every year. This garbage pollutes the water, kills wildlife and breaks down into small pieces that fish and other creatures eat.
Now a group of Spanish fishermen will receive economic support to catch plastics. It is part of a new project. Carlos Martin is one of the fishermen taking part in the project. He and his partners collect the plastic in the ocean and bring it back to land every week. Martin thinks rivers carry a lot of plastics to the sea. He says his most concern is no more than that the plastics often get caught in the nets, which makes nets not work properly. They take on mud（泥）, causing the nets to break because they weigh so much.
Under the new programs, one million pounds will support ocean cleanup efforts for fishermen like Martin. The money is coming from the European Union and the Catalan government. Sergi Tudela, the General Director of Catalonia Fisheries, is responsible for the cleanup project. He said, "We are hopeful that if we are successful in this project, we can apply it to other areas in the Mediterranean（地中海）."
Government reports show that the amount of plastic wastes washing up along the Spanish coastline has grown by 65 percent in just six years. Fishing equipment makes up a large part of the about 8 to 12 million tons of plastics left in the world's oceans every year.
Martin says the fishing community now understands how big the problem is. He says, "In the past we didn't see it that way. We took the plastic garbage and threw it back into the water. I think that after a few year here we have realized the problem. Nothing is thrown into the water; we collect everything and bring it to shore.
1. What worries Martin most about plastic wastes at the beginning?| A．They pollute the sea environment. |
| B．They affect the quality and taste of fish. |
| C．They prevent the fishing nets from working well. |
| D．They kill wildlife and reduce his fishing amount. |
| A．Getting more money to support the project. |
| B．Getting help from other European countries. |
| C．Spreading the cleanup project to more places. |
| D．Praising the European Union for their helping to the oceans. |
| A．Its members do a lot of work for free. |
| B．It has stopped using plastic fishing equipment. |
| C．It has made positive changes to fight plastic wastes. |
| D．Its members find people sill throw the garbage carelessly. |
| A．New programs are changing fishermen's life |
| B．Money is given to Spanish fishermen to clean up oceans |
| C．Traditional fishing equipment causes a lot of plastic wastes |
| D．Spanish fishermen are encouraging people to clean up oceans |
4 . Micro-plastics have occupied almost every part of the planet today, including the most distant reaches.
The Arctic is far from clean, though it s rarely stepped in by visitors. Melanie Bergmann, a marine ecologist (海洋生态学家) and her colleagues had been studying plastics on the Arctic seafloor since 2002. In deep sea, they found about 6,0000 particles (微粒) in every 2.2 pounds of mud. In sea ice, there were as much as 12,000 pieces per 34 ounces of melted ice.
Scientists measured micro-plastics in snow from this distant location and found a lot, which could only have caught rides on the wind. The study raises concerns about the pollution that micro-plastics brought to the air, bringing a health risk to people and animals that breathe them in. But they are less worried about the threat that breathed-in pollutants have to wildlife than about polluted snow going into water.
The science on the health effects of micro-plastics is still going on.“For human health, we now now very little," says micro-plastics researcher Chelsea Rochman, “There is a lot of concern. For wildlife, we know that micro-plastics may go into every level of the food chain." Laboratory studies find some physical and chemical effects from micro-plastics, but the findings vary by the plastic type, shape experiments will be carried out soon with use of equipment if financial support approves."
Even worse is the threat from airborne micro-plastics in the area---too small to be noticed and may actually enter cells. Research on that also has been done and it could be a bigger problem, according to Rochman.
1. What can you learn from the data in Paragraph 2?| A．Visitors rarely step into the Arctic. |
| B．Micro-plastics threaten the human beings. |
| C．Micro- plastics are everywhere in the world. |
| D．The Arctic suffers serious micro-plastics pollution. |
| A．Wildlife's threat by micro-pollutants. |
| B．Human beings breathing micro-plastics in. |
| C．Micro-plastics entering the water ecosystem. |
| D．Micro-plastics pollution worsening global warming. |
| A．Damage of micro-plastics to health. |
| B．Appeals for environmental protection. |
| C．Findings about airborne micro-plastics in the Arctic. |
| D．Measures to solve micro-plastics pollution. |
| A．Science. | B．Health. |
| C．Education. | D．Entertainment. |
5 . On November 7, Lewis Pugh completed a one-kilometer swim in the freezing waters of King Edward Cove, off South Georgia in Antarctica. He was wearing only his swimming glasses, cap and Speedo !
Pugh is an advocate for our oceans and seas, working to protect these ecosystems with their large diversity of marine life. When asked why he doesn't wear a wetsuit(防寒泳衣), Pugh says, "I ask world leaders to do everything they can to protect our oceans. Sometimes the steps they need to take are difficult and unpopular. If I'm asking them to be courageous, I must also be. Swimming in a wetsuit would not send the right message."
It took Pugh about 19 minutes to complete the one-kilometer swim in Antarctica where the water averaged about 1.6 degrees Celsius. He says that his body can only tolerate about 20 minutes in the freezing waters before it starts shutting down. As he swims, his body temperature steadily drops, which in turn causes his muscle control to drop, slowing him down. When he is done with his swim, his support team rushes him to a hot shower and it takes almost an hour for his body temperature to return to normal.
Doctors and Pugh caution that one must receive months of training to swim in such cold waters. Even expert swimmers who are unused to freezing water can drown within minutes because of the physical shock experienced by the body. Pugh says he trained for six months before this swim.
This is not the first time that Pugh has swum in dangerous conditions. In 2007, he swam one kilometer in the North Pole to draw attention to the melting Arctic ice due to climate change. In 2015, he swam in the Bay of Whales in Antarctica's Ross Sea as part of his successful campaign to help set up a marine reserve there.
1. Why did Lewis Pugh swim without a wetsuits ?| A．To show his bravery. |
| B．To swim faster. |
| C．To build up his body. |
| D．To have overnight fame. |
| A．His body temperature. |
| B．His body |
| C．The water. |
| D．The water temperature. |
| A．One should be expert at swimming. |
| B．One must be used to long-distance swimming. |
| C．One should be ready to take on challenges. |
| D．One must be adequately prepared for it. |
| A．Lewis Pugh: achieving the impossible |
| B．How to survive a swim in cold waters |
| C．Lewis Pugh: swimming for a cause |
| D．How to prepare for extreme swimming |
6 . NOT that long ago, the world wondered whether clean energy could survive without government support. Now the question is how far it can spread. The number of electric vehicles. which was about 1 million in 2015, last year reached 2 million. In electricity generation, too, trend is with the greens. In the first half of this year wind, solar and hydro generated a record 35% of Germany's power.
Greater success is breeding greater ambition. California is proposing to reach 60% renewable energy by 2030: 176 countries have clean-energy goals. Hawaii, America's most oil-dependent state, has promised to be 100% renewable by the middle of the century. So have 48 poor countries vulnerable to climate change. This week the number of multinationals making a commitment to running their operations on 100% renewable energy rose to 100.
But not every target is helpful. To see why, consider that goal of 100% renewable energy. It makes solving climate change seem easy. In fact, though wind and solar can generate the whole country's electricity some day, renewables still account for less than 8% of the world's total power output. Moreover, cleaning up electricity is only part of the battle. Even though gas-fired heating and cooking can be at least as big a source of greenhouse-gas emissions, renewable heating gets little attention. Transport policy is unpredictable, too. Carmakers may hit their goal of annual sales of 10 million electric vehicles in a decade, but battery-powered road transport, shipping and aviation are dreams. A much-quoted claim that America could rely on wind, solar and hydro alone for its electricity has recently been bitterly criticized by a group of respected academics.
Most importantly, a 100% renewables target confuses means with ends. The priority for the planet is to stop net emissions（净排放量）of greenhouse gases, especially carbon dioxide. Putting too much emphasis on wind, solar and other renewables may block off better carbon-reduction paths. After decades of investment, it is wrong to leave nuclear power off the table. Carbon emissions in Germany actually rose because it chose to phase out nuclear power gradually and so burned more coal. New technologies, such as "direct air capture" systems designed to separate carbon dioxide from the air, may in time prove vital. Likewise, greater energy efficiency could reduce emissions by even more than using renewables would.
1. It can be inferred from the passage that .| A．the problem of climate change will be solved by using 100% renewable energy |
| B．with new technologies, Germany successfully cut down carbon emissions |
| C．it is probable that ships will one day be powered by battery |
| D．America is not likely to completely rely on wind, solar and hydro energy one day |
| A．promoting energy efficiency |
| B．blocking off carbon-reduction paths |
| C．using non-renewable heating |
| D．abandoning electric vehicles |
| A．ignore | B．reduce | C．use | D．invent |
| A．Fashion | B．Politics | C．Economy | D．Education |
7 . China’s war on garbage is as digital as the country itself. Think QR codes attached to trash bags that allow the government to trace exactly where its trash comes from.
On July 1, Shanghai began a compulsory garbage sorting program. Households and companies must classify their wastes into four categories and dump them in appointed places at certain times. The strict program became a headache for some residents. Not even the most environmentally conscious person can get all the answers right. Like, which bin does the newspaper you just used to pick up dog poop (粪便)belong to?
Gratefully, China’s tech startups are here to help. For instance, China’s biggest internet companies responded with new search features that help people identify what wastes are “wet”, “dry”, “toxic”, or “recyclable”. Simply pull up a mini app on WeChat, Baidu or Alipay and enter the keyword. The tech firms will give you the answer and why.
Alipay, Alibaba’s electronics payment company, claims its garbage sorting mini app added one million users under just three days. The mini app has so far indexed (编索引) more than 4,000 types of rubbish. Its database is still growing, and soon it will save people from typing by using image recognition to classify trash when they snap a photo of it. If people are too busy or lazy to hit the collection schedule, well, startups are offering trash service at the doorstep. A third-party developer helped Alipay build a recycling mini app and is now collecting garbage from 8,000 apartment complexes across 11 cities. To date, two million people have sold recyclable materials through its platform.
Besides helping households out, companies are also building software to make property managers, life easier. Some residential complexes in Shanghai began using QR codes to trace the origin of garbage. This way, regulators in the region know exactly which family has produced the trash and fine violators.
1. What are some residents confused about?| A．Environmental knowledge. | B．Bin for dog poop. |
| C．Some waste classification. | D．Time for dumping. |
| A．It provides time flexibility. | B．It reduces household waste. |
| C．It saves people from typing. | D．It classifies rubbish properly. |
| A．Third-party developers. | B．Company managers. |
| C．Community administrators. | D．Rubbish collectors. |
| A．People need recycling apps badly. |
| B．People should classify their rubbish. |
| C．How regulators benefit from the tech. |
| D．How China uses tech to sort waste. |
8 . Reducing plastic waste isn't easy because the cheap material is found in almost every household item. Now, a delicious and nutritious solution has come up to help reduce our dependence on this environmental hazard.
David Christian, the co-founder of Evoware, says the idea of creating the biodegradable (生物降解的) products came from concern at the country’s high pollution rate. Indonesia is home to four of the world's worst polluted rivers. Since single-use packaging is a large contributor to the problem, Evoware decided to deal with that first.
After investigating various materials, the company settled on seaweed. Unlike corn, commonly used for biodegradable containers, seaweed does not require resources like water or large amounts of space. Since Indonesian farmers already harvest more seaweed than they can sell, it's easy for the company to find the material.
Though they will not reveal their production process, Evoware says the seaweed packaging contains no chemicals and is safe to consume. The company has also invented single-use cups, which can break down 30 days after they're thrown away.
While replacing plastic with the seaweed products may seem appealing to most of us, it is a hard-sell in Indonesia. According to Christian, ''The awareness to reduce single-use plastic is still very low. This makes our bioplastic unnecessary.” Also a factor is the cost, which is higher than using plastic. Hopefully, Evoware will succeed in convincing Indonesians and people worldwide that switching to their products will be helpful to protecting our beautiful planet.
1. What problem did Evoware decide to deal with first?| A．Ways to clean the four worst polluted rivers. |
| B．What nutritious materials for people to use. |
| C．How to deal with single-use packaging. |
| D．Means to contribute to the country's economy. |
| A．It didn't require much space and was easy to get. |
| B．It could be found everywhere in his country. |
| C．It was most commonly used for packaging. |
| D．It grew thickly in most of the polluted rivers. |
| A．Their seaweed products have won government support. |
| B．Sometimes it's hard to get people to reduce the use of plastics. |
| C．Their new products have received worldwide popularity. |
| D．The cost of making seaweed products will be lowered soon. |
| A．Something lasting long. | B．Something hard to accept. |
| C．Something easy to get. | D．Something commonly seen. |
9 . This is always a busy time of year, but please don’t forget to recycle as much as you can.
| Put in Your Recycling Bins: Cardboard — this includes all the boxes your presents came in but please remove any plastic packaging. Plastic bottles — all plastic bottles including fizzy drinks and cider bottles, as well as milk, shampoo, cleaning and washing-up liquid bottles. |
| Christmas trees can be recycled in your fortnightly Garden Waste Collection Service as long as they are small trees chopped into pieces no bigger than 3 inches or 75mm in diameter. For large trees please take them to your local Household Waste and Recycling Centers. Please note the Garden Waste Collection Service is suspended (暂停的) between Dec 26th and Jan 6th . |
| Glass bottles and jars — empty wine bottles can be taken to the bottle bank together with beer bottles and pickle (泡菜) jars. Clothes and shoes — for your old clothes, take them to your local clothing recycling bank. |
| Please Do NOT Place in Your Recycling Bins: Gift wrap — Christmas gift wrapping does not contain much paper. It is often layered with foil (箔纸) and plastic which can’t be recycled. Plastic carrier bags — please do not put your recyclables in these as it makes it difficult to sort the contents. Plastic packaging — Although plastic packaging may have symbols which suggest it can be recycled, it is made of different types of plastic and there are no cost-effective ways to recycle it at present. |
1. What should we do before putting the cardboard into recycling bins?
| A．Cutting it into pieces. | B．Collecting the gifts. |
| C．Taking off its plastic packages. | D．Emptying the packages. |
| A．Because it is hard to sort the content. |
| B．Because it is made of different type of foil. |
| C．Because the symbols on it advise us not to do so. |
| D．Because cost-effective ways to recycle it haven’t been found. |
| A．The Christmas is the season for recycling. |
| B．Christmas trees must be kept for the future. |
| C．All the empty bottles can be put into the recycling bins. |
| D．There is a recycling center for the old clothes and shoes. |
10 . More than half of the birds in Washington are at risk of extinction because of climate change. That's according to a new national report from the Audubon Society, which gives detailed analysis of climate effects on about 600 species of North American birds.
It's based on more than 140 million observations of birds across the US, Mexico and Canada. Audubon scientists looked at the likely effects of sea-level rise, urbanization, drought, extreme spring heat, increased fires, heavy rain and other factors.
But it doesn't just spell out a doomsday scenario (世界末日).Instead, it offers a range of effects and warming, depending on how much carbon humans add to the atmosphere.
"It is truly an existential threat (威胁), not only to birds but to people,” said Doug Santoni, board chair of Audubon Washington, who looked into the report as soon as it came out.
Santoni says he was struck to see the vulnerability (脆弱)of a common “ backyard bird" , the dark-eyed junco. It's one that many first-time birders become familiar with as they learn how to identify species based on their markings and other traits. Currently in Washington, you can count on juncos to show up at your feeder, year round. Extreme spring heat, increased fires and heavy rain are the kinds of changes that will force birds like these north, or kill them off if they fail to adapt.
Trina Bayard, director of bird conservation at Audubon’s Washington chapter, says, "It's certainly a very serious warning report," but adds that there’s still hope. “If we can stabilize current temperatures and decrease our emissions (排放), we can really reduce the effects to these birds …that's very motivating. ”
1. What can we know about the new report?| A．It analyses the species of birds in detail. |
| B．It's issued by watching 600 bird species. |
| C．It shows the end of North American birds. |
| D．It reports the threat some birds are facing. |
| A．Climate change is a threat only to birds. |
| B．It's too late to take action to save the birds. |
| C．The current situation of the birds is worrying. |
| D．It's common that birds are affected by climate change. |
| A．Lowering present temperatures. |
| B．Reducing our daily emissions. |
| C．Making them adapt to climate change. |
| D．Encouraging people to protect them. |
| A．Climate change threatens many Washington bird species. |
| B．A new report about 600 species of North American birds. |
| C．Different attitudes towards the situation of bird species. |
| D．Climate change makes different kinds of species at risk. |
