1 . Afroz Shah, a lawyer in Mumbai, hasn’t had a weekend off in four years. But he hasn’t spent this time preparing for
His mission? Saving the world’s oceans from
It’s a calling he found in 2015 after moving to a community in Mumbai called Versova Beach. He had played there as a child and was
“The whole beach was like a
In October 2015, Shah began
For Shah, the work has always been a
He’s now spent 209 weekends on this mission,
“This world talks too much. I think we must talk
| A．teaching | B．court | C．housework | D．cleaning |
| A．river | B．soil | C．plastic | D．oil |
| A．upset | B．excited | C．delighted | D．hesitant |
| A．grown | B．changed | C．reserved | D．protected |
| A．pure | B．golden | C．shiny | D．visible |
| A．carpet | B．curtain | C．painting | D．photograph |
| A．temporary | B．permanent | C．ugly | D．pretty |
| A．sticks to | B．keeps off | C．gives back | D．ends up |
| A．killer | B．cleaner | C．guest | D．decoration |
| A．sweeping | B．attacking | C．visiting | D．beautifying |
| A．pulling | B．thinking | C．picking | D．looking |
| A．came | B．failed | C．went | D．spread |
| A．involved | B．lived | C．stuck | D．paid |
| A．easy | B．tough | C．personal | D．general |
| A．known | B．regarded | C．decided | D．honored |
| A．cause | B．case | C．position | D．fame |
| A．requiring | B．rejecting | C．inviting | D．inspiring |
| A．originally | B．finally | C．politically | D．theoretically |
| A．fewer | B．less | C．better | D．worse |
| A．honor | B．beauty | C．hope | D．love |
2 . Steven Stein likes to track garbage trucks. He says, “It’s hard to resist.” Stein’s strange habit makes sense when you consider that he’s an environmental scientist who studies how to reduce litter, including stuff that falls off garbage trucks as they run down the road. What is even more interesting is that one of Stein’s current plans is defending an industry behind a source of trash: plastic shopping bags.
Americans use more than 100 million plastic bags every year. So many end up in tree branches or along highways that a growing number of cities are banishing (排除) them from checkout lines. The bags are outlawed in some places in the USA.
Facing these situations, plastic-bag manufacturers are hiring scientists like Stein to make the case that their products are not as bad for the planet as most people assume. “It’s important to base your decisions on facts,” says Stan Bikulege, CEO of Hilex Poly, which has hired Stein.
Among the bag makers’ argument: many cities with bans still allow shoppers to purchase paper bags, which are easily recycled but require more energy to produce and transport. And while plastic bags may be ugly to look at, they represent a small percentage of all garbage on the ground today.
The industry has also taken aim at the product that can take the place of plastic bags: reusable shopping bags. The sturdier a reusable bag is, the longer its life and the more plastic-bag use it cancels out. But this plan has another side. Longer-lasting reusable bags often require more energy to make.
Environmentalists don’t agree with these points. They hope paper bags will be banned someday too and want shoppers to use the same reusable bags for years. So are reusables our destiny? The answer is probably yes. And Andy Keller, inventor of reusable polyester (聚酯纤维) bags, says, ”If you can carry it out in your hands or put it back in your car, you don’t need a bag.”
1. The first paragraph serves as___________.| A．an explanation | B．an introduction | C．a comment | D．a background |
| A．To collect facts about shopping bags. |
| B．To show plastic bags are eco-friendly. |
| C．To research on people’s consuming habits. |
| D．To prove plastic bags are better than people thought. |
| A．They look a bit ugly. | B．They are easy to break. |
| C．Their prices are comparatively high. | D．Their production is energy-consuming. |
| A．Stronger. | B．Lighter. | C．Heavier. | D．Softer. |
| A．Forget about plastic bags. | B．Paper bags are coming. |
| C．Paper, plastic or neither. | D．A strange scientist. |
3 . Life will be peaceful if you always do kind things. I teach my daughters to develop a habit of
We
A helping behavior that I practice regularly with my daughters is driving around to pick up rubbish in our neighborhood. My daughters often have a
There are many other ways to
| A．watching | B．helping | C．welcoming | D．teaching |
| A．carefulness | B．peace | C．kindness | D．interest |
| A．great | B．unusual | C．easy | D．sad |
| A．work | B．travel | C．live | D．stay |
| A．dream | B．see | C．need | D．develop |
| A．environment | B．weather | C．stair | D．beauty |
| A．disadvantages | B．favorites | C．wishes | D．answers |
| A．sensitive | B．necessary | C．energetic | D．accurate |
| A．sky | B．village | C．city | D．street |
| A．match | B．chance | C．meeting | D．lesson |
| A．surprised | B．tired | C．excited | D．frightened |
| A．speed | B．start | C．move | D．stop |
| A．Although | B．But | C．And | D．Since |
| A．understand | B．experience | C．forget | D．enjoy |
| A．covered | B．lowered | C．shook | D．raised |
| A．sport | B．idea | C．result | D．question |
| A．describe | B．buy | C．provide | D．make |
| A．puzzled | B．successful | C．healthy | D．lonely |
| A．clean | B．cross | C．repair | D．draw |
| A．suddenly | B．impossibly | C．easily | D．gradually |
4 . Styrofoam, or polystyrene, is a light-weight material, about 95 percent air, with very good insulation (隔热) properties, according to Earthsource.org. It is used in products from cups that keep your drinks hot or cold to packaging material that protects items during shipping. With the above good features, Styrofoam still enjoys a bad reputation. It cannot be recycled without releasing dangerous pollution into the air. The U. S. Environmental Protection Agency says it is the fifth-largest creator of harmful waste.
But now the common worms which are usually disgusting can come to the rescue, specifically, mealworms. Scientists from the U. S. and China have discovered that mealworms can digest plastic. One mealworm can digest a pill-sized amount of plastic a day. Study co-author Wei-Min Wu says that in 24 hours, the plastic is turned into carbon dioxide.
Since Styrofoam has no nutrition at all, are the worms hurt by eating plastic? Much to the scientists’ surprise, the study found that worms eating Styrofoam were as healthy as worms eating bran (谷糠). The researchers will study the worm’s eating habits and digesting system, looking to copy the plastic breakdown but on a larger scale. Once the way can be put into practice, it will make a revolutionary difference to the disposal of plastic.
“Solving the issue of plastic pollution is important”, says Wu, a Stanford University environmental engineering instructor. After all, our earth is small and landfill space is becoming limited with too much garbage waiting to be dealt with, he says.
About 33-million tons of plastic are thrown away in the United States every year. Plastic plates, cups and containers take up 25 percent to 30 percent of space in America’s landfills. One Styrofoam cup takes more than 1 million years to recycle in a landfill, according to Cleveland State University.
1. What do we know about Styrofoam?| A．It can be used to cool drinks. |
| B．It is a weightless material. |
| C．It is harmful when recycled. |
| D．It is usually used on ships. |
| A．Mealworms have amazing digesting power. |
| B．Mealworms are not bad in their nature. |
| C．Mealworms can rescue people’s lives. |
| D．People misunderstood mealworms in the past. |
| A．To find ways to help mealworms grow larger. |
| B．To imitate their ways of breaking down plastic. |
| C．To help develop their digesting ability. |
| D．To make sure of their safety after eating plastic. |
| A．by raising amounts of mealworms |
| B．by environmental engineering instructors |
| C．using a method inspired by eating mealworms |
| D．without sending out dangerous pollution |
| A．Styrofoam is widely used in daily life. |
| B．Mealworms are genius at eating plastic. |
| C．Plastic recycling may be no more a problem. |
| D．Plastic can be turned into carbon dioxide. |
5 . In the UK, the government showed throwaway cups should be forbidden altogether by 2023 if they are not all being recycled. As a result, Starbucks said it would try out a 5p (5 pence) cup charge in 20 to 25 central London shops. “We will begin it next month and at first it will last for three months,” the company said, adding that it continued to offer a 25p (25 pence) discount to customers who brought their own reusable cups.
The government agrees plastic waste is a problem and will consider taxing disposable (一次性的) plastics. The committee’s chair, Mary Creagh, said, “The UK throws away 2.5 billion disposable coffee cups every year. Almost none are recycled. Coffee cup producers and shops haven’t taken action to change this. So we need to kick-start a change in recycling.”
The Liberal Democrats said they had been suggesting a charge on coffee cups since September 2016. The party’s spokesman, Tim Farron, said, “The result is clear that the tax works. The 5p charge on plastic bags has largely cut down the usage and helped protect our environment.”
The 5p tax is being against by the makers of paper cups. Mike Tuner, of the Paper Cup Alliance, said paper cups were the safest solution for drinks. “The paper cups we produce in the UK can be recycled, and are being recycled. We are trying to increase recycling rates. Taxing the morning coffee run won’t solve the problem, but it will hurt consumers,” he said.
Disposable coffee cups are technically recyclable, but most are not because the UK has just three machines that can split the paper and plastic parts for recycling. The committee has called on the government to require coffee cups from cafes without in-store recycling systems to carry “not recycled” marks to remind customers. Cafes with in-store recycling systems should print their cups with “recyclable in store only”.
1. About the throwaway cups, Starbucks will ________.| A．offer a half-price discount to customers with their own cups |
| B．support the idea of forbidding throwaway cups till 2023 |
| C．charge customers 5p per throwaway cup in some shops |
| D．stop to offer throwaway cups in its shops right now |
| A．Coffee cup makers will take action to recycle the water. |
| B．The use of the disposable plastics is a nationwide problem. |
| C．Coffee cup users pay much attention to the plastic problem. |
| D．The UK government will ban all disposable coffee cups by 2023. |
| A．More people will fight against the charge. |
| B．There will be little change in our environment. |
| C．Fewer people will use the disposable coffee cups. |
| D．There will be a competition between coffee shops. |
| A．will be supported by the makers of the paper cups |
| B．will affect the consumers instead of solving the problem |
| C．can give a hand to increasing recycling rates of the makers |
| D．can be the best solution for the government to cut down waste |
| A．There are not enough professionals in this area. |
| B．There is not enough professional equipment. |
| C．Consumers don’t have recycling knowledge. |
| D．Cafes don’t have recycling systems at all. |
6 . In the long discussion of water on the Moon, a new study contradicts (与……相矛盾) some recent reports that say the Moon had water at the time of its formation. A group of researchers report in the journal Science that when the Moon was created, some 4. 5 billion years ago, there was not much hydrogen (氢气) on it, and therefore no water.
The researchers surveyed and evaluated this by analyzing chlorine (氯) isotopes found in lunar rock samples from Apollo missions. The range of chlorine isotopes in lunar samples was 25 times that found in samples from Earth.
“If the Moon had significant levels of hydrogen, as Earth did, this range would have been far less,” said Zachary D. Sharp, a scientist in the Department of Earth and Planetary Sciences and the study’s lead author.
“The chlorine would have stuck together with hydrogen, forming compounds like hydrogen chloride, and escaped from the Moon’s surface,” he said. The abundance of chlorine indicates a lack of hydrogen and water.
“The amount of water on the Moon was too low for life to possibly have existed there,” he said.
Most scientists believe the Moon was formed when a large object struck Earth, breaking off a chunk (a vast piece) that has since orbited Earth.
On Earth, goes one theory, water was released as steam from molten basalts (玄武岩) over time, eventually forming bodies of water.
“An understanding of whether the Moon was dry or wet will help us understand how water appeared on Earth,” Dr. Sharp said.
1. A new study indicates that ______ on the moon.| A．there is plenty of water | B．water is unlikely to exist |
| C．water existed in the past | D．there is a little water now |
| A．why there is no water on the Moon | B．how the Moon was formed |
| C．when the Earth struck the Moon | D．where the Moon orbited |
| A．Neither hydrogen nor water on the Moon. |
| B．Too much chlorine isotopes on the Moon. |
| C．Not being much hydrogen, no water on the Moon. |
| D．More chlorine exists on the Moon than Earth. |
| A．Zachary D. Sharp, a scientist in the Department of Earth and Planetary Sciences was in charge of the new study. |
| B．Chlorine isotopes are 25 times on the Moon larger than on Earth. |
| C．The more abundant chloride, the shorter hydrogen and water. |
| D．The new study is beneficial to understand how water appeared on Earth. |
| A．There is enough water and hydrogen on the Moon. |
| B．Hydrogen chloride easily escaped from the Moon’s surface. |
| C．The Earth had significant levels of hydrogen. |
| D．Water on Earth is directly from molten basalts. |
7 . A major new facility to pull CO2 out of the atmosphere has started operating in Iceland, which is a boost to an emerging technology that experts say could eventually play an important role in reducing greenhouse gases.
The plant in southwest Iceland is the biggest of its kind, its builder says. It is able to capture 900 tons of CO2 every year but it needs heat and electricity to work. It is using energy produced from waste and is built on the roof of a waste incineration plant, and through the burning of rubbish, energy is generated.
Human-sized fans are built into a series of boxes. They take CO2 out of the air, catching it in spongelike filters (过滤器). The filters are blasted with heat, freeing the gas, which is then mixed with water and pumped deep into deep underground basalt caves, where over time it turns into dark-gray stone. Pumping CO2 into the ground is just one way to deal with it. The makers are also selling the gas to be used again. The CO2 can be captured just a few 100 miles away. It is pumped through an underground pipeline directly into a greenhouse. Vegetables and plants love CO2 and higher concentrations of the gas within the greenhouse improve the growth of plants.
By 2050, humanity will need to pull nearly a billion metric tons of CO2 from the atmosphere every year through direct air capture technology to achieve carbon neutral goals, according to International Energy Agency recommendations. The plant in Iceland will be able to capture 4000 metric tons annually — just a small amount of what will be necessary, but an engineer in Climeworks, the company that built it, says it can grow rapidly as efficiency improves and costs decrease.
“This is a market that does not yet exist, but a market that urgently needs to be built,” said Christoph Gebald who co-founded Climeworks. “This plant that we have here is really the blueprint to further increase the size and really industrialize.”
1. What do we know about the carbon capture facility from paragraph 2?| A．It is built at high altitudes. | B．It uses waste to produce power. |
| C．It makes Iceland free of air pollution. | D．lt produces lots of heat during operation. |
| A．The methods of breaking down CO2. |
| B．The approaches to reusing waste gas. |
| C．The necessity of building greenhouses. |
| D．The workings of the carbon-catching plant. |
| A．It will decrease the cost of energy production. |
| B．It can help reach the carbon neutral goals in advance. |
| C．It will speed up the reduction of CO2 levels in the air. |
| D．It may replace the traditional carbon storage system. |
| A．The capture of CO2 in the atmosphere is able to kill many birds with one stone. |
| B．CO2 will be delivered to greenhouses after being turned into dark-gray stones. |
| C．A major new market to pull CO2 out of the atmosphere has started operating. |
| D．The plants in Iceland greenhouses can capture a small amount of CO2. |
| A．Ambiguous. | B．Neutral. |
| C．Disapproving. | D．Supportive. |
8 . Using too much water or throwing rubbish into our rivers are clear ways that humans can put our water supply in danger, but we also affect our water supply in less obvious ways. You may wonder how paving(铺砌) a road can lead to less usable fresh water. A major part of the water we use every day is groundwater. Groundwater does not come from lakes or rivers. It comes from underground. The more roads and parking lots we pave, the less water can flow into the ground to become groundwater.
Human activity is not responsible for all water shortages(缺乏). Drier climates are of course more likely to have droughts(干旱) than areas with more rainfall, but in any case, good management can help to make sure there is enough water to meet our basic needs .
Thinking about the way we use water every day can make a big difference, too. In the United States, a family of four can use 1.5 tons of water a day! This shows how much we depend on water to live, but there’s a lot we can do to lower the number.
You can take steps to save water in your home. To start with, use the same glass for your drinking water all day. Wash it only once a day. Run your dishwasher only when it is full. Help your parents fix any leaks(滴水) in your home. You can even help to keep our water supply clean by recycling batteries instead of throwing them away.
1. Which of the following is most likely to lead to less groundwater?| A．Using river water. | B．Throwing batteries away. |
| C．Throwing rubbish into lakes. | D．Paving parking lots. |
| A．All water shortages are due to human behavior. |
| B．It takes a lot of effort to meet our water needs. |
| C．There is much we can do to reduce family size. |
| D．The average family in America makes proper use of water. |
| A．show us how to fix leaks at home |
| B．tell us how to run a dishwasher |
| C．prove what drinking glass is best for us |
| D．suggest what we do to save water at home |
| A．how human activity affects our water supply |
| B．how much we depend on water to live |
| C．why droughts occur more in dry climates |
| D．why paving roads reduces our water |
9 . Bowhead whales can live 200 years or longer. How they do it is no longer among the secrets of the deep.
Scientists have mapped the genetic code of this long lived whale species. The international effort found unusual features in the Arctic whale’s genes. Those features likely protect the species against cancer and other problems related to old age. The researchers hope their findings will one day translate into ways to help people too.
“We hope to learn what is the secret of bowhead whales living longer, healthier lives,” says Joao Pedru de Magalhes. He is a gerontologist at the University of Liverpool in England. (Gerontology is the scientific study of old age. ) He is also a co-author of the study that appeared in Cell Reports. His team hopes, he says, that its new findings might one day be used to improve human health and preserve human life.
No other mammals are known to live as long as the bowhead whales. Scientists have shown that some of these whales have lived well beyond 100 — including one that survived to 216. For perspective, if he were still alive, Abraham Lincoln would be turning just 211 this year.
Dr. Magalhäes’ team wanted to understand how the bowhead can live so long. To find out this, the experts analyzed the animal’s complete set of genes, called its genome. Those instructions are coded in the animal’s DNA. The team also compared the whale’s genome to that of people, mice and cows.
The scientists discovered differences, including mutations, in the whale’s genes. Those changes are linked to cancer, aging and cell growth. The results suggest that the whales are better than humans at repairing their DNA. That’s important because damaged or flawed DNA can lead to disease, including some cancers.
Bowhead whales are also better at keeping abnormally dividing cells in check. Together, the changes appear to allow bowhead whales to live longer without developing age related diseases such as cancer, said Magalhäes.
1. What can you know from the passage?| A．How bowhead whales five so long is still a mystery to scientists. |
| B．Bowhead whales live the longest among all the sea animals. |
| C．Most bowhead whales can live beyond 100. |
| D．The result of the research may be beneficial to human life span. |
| A．Lincoln died one hundred years age | B．Lincoln should have lived much longer. |
| C．the lifetime of bowhead whales is very long. | D．their study unlocked the secret of Lincoln’s death. |
| A．it faces little danger in its life |
| B．its DNA has a strong ability of self-repairing |
| C．it has a complete set of genetic instructions |
| D．its living environment is better than that of humans |
| A．Disabled | B．Changed | C．Misled | D．repaired |
| A．the bowhead is the animal which lives the longest |
| B．scientists have found ways to treat humans’ disease |
| C．scientists have new findings in search of bow head whales |
| D．bowhead whales may unlock the secrets of a long, healthy life |
10 . If you’re worried about the planet, please make sure your rubbish is buried under the ground.
People talk about “reduce, reuse, recycle.” It sounds like a good idea. There is a problem, though. Recycling costs too much money.
Even the U. S. Environmental Protection Agency(EPA) says it only makes sense economically and environmentally to recycle about 35 percent of thrown materials, Among those materials are paper and aluminum cans (铝罐), Recycling 1 ton of paper or aluminum cans, the agency says, can save about 3 tons of CO2 emissions (排放) overproducing those materials again. Paper producers pay for the trees they process If it was cost-effective to recycle paper. producers would be beating down your door to bay it. But they aren’t. That means it’s more expensive to recycle old paper than to cut trees and then replant trees for processing.
Plastic can be recycled too. Because of the recent drop in crude oil (原油) prices. it is now cheaper to make a new plastic container (塑料容器) than to recycle an old one. Even if that were not true, the EPA says that recycling a ton of plastic saves only about a ton of CO2. However, it doesn’t take into consideration the water most people use to wash their plastic containers before having them recycled. The New York Times Journalist John
Tierney recently wrote. “If you wash plastic in water that was heated by electricity, them the effect of your recycling could be mere carbon in the air.
Glass is another recyclable material. To reduce greenhouse gas emissions by I ton, you have to recycle 3 tons of glass. If one includes the cost of collecting glass waste from neighborhoods, and the pollution produced by the collection trucks and the recycling process itself, glass recycling creates more greenhouse gas emissions and is more expensive than making new glass, which comes primarily from sand that exists everywhere.
If recycling were truly cost-effective, private companies would be lining up at your doorstep to buy your rubbish. Don’t look now because they’re not there.
1. What’s the EPA’S attitude to recycling aluminum cans?| A．It is helpful to the environment. | B．It is actually a waste of money. |
| C．It costs less than recycling paper. | D．It costs the same as producing new cans. |
| A．The crude oil. | B．The water pollution. |
| C．The process to clean it. | D．The electricity for lights. |
| A．It results in lots of waste in neighborhoods. |
| B．The material for new glass can be easily got. |
| C．It is slightly more expensive than recycling glass. |
| D．Making 3 tons of new glass produces I ton of carbon emissions. |
| A．Recycling will disappear soon. |
| B．Companies will line up at your doorstep. |
| C．Recycling is a way to deal with your rubbish. |
| D．Companies won’t bother to collect thrown materials. |
| A．Whose fault is it? | B．Where does waste go? |
| C．Is everything recyclable? | D．Is it really worth the effort? |
