1 . Plastic is everywhere, from the Arctic ice to vital organs in the human body. In fact, previous estimates suggest that the average person swallows a credit card-worth of microscopic plastic particles(颗粒) every week. But new research shows that this could actually be an understatement.
Microplastics are plastics smaller than 5 millimeters, found in industrial waste, beauty products, and formed during the degradation of larger plastic pieces. Over time, they break down into even smaller nanoplastics. These tiny particles can pass through our intestines and lungs into our bloodstreams, reaching vital organs like the heart and brain.
While the idea of eating plastic is unsettling in itself, the major concern here is that these plastic particles contain chemicals that can interrupt our body’s natural release of hormones, potentially increasing our risk of reproductive disorders and certain cancers. They can also carry toxins(毒素) on their surface like heavy metals.
In the past, researchers have shown bottled water can contain tens of thousands of identifiable plastic fragments in a single container. However, until recently, only the larger microplastics were detectable with available measuring tools, leaving the area of nanoplastics largely a mystery.
Using Raman microscopy (显微镜学), capable of detecting particles down to the size of a flu virus, the team measured an average of 240, 000 particles of plastic per liter of bottled water, 90 percent of which were nanoplastics, a revelation 10 to 100 times larger than previous estimates.
These plastics likely originate from the bottle material, filters used to “purify” the water, and the source water itself. “It is not totally unexpected to find so much of this stuff, ” the study’s lead author, Columbia graduate student Naixin Qian, said in a statement. His team hopes to expand their research into tap water and other water sources to better inform our exposure to these potentially dangerous particles. “The idea is that the smaller things get, the more of them I reveal, ” he added.
1. What is the primary focus of the new research?| A．The presence of plastic particles. | B．The use of plastic in everyday products. |
| C．The detection methods for microplastics. | D．The potential risks of nanoplastics to human. |
| A．Finding the source of plastic particles. | B．Helping to cure the deadly flu virus. |
| C．Detecting the smaller plastic particles. | D．Improving the quality of bottled water. |
| A．To focus on areas with higher plastic pollution. |
| B．To be aware of the dangerous particles in daily life. |
| C．To further measure the types of particles in tap water. |
| D．To detect the smaller plastic particles in industrial areas. |
| A．Skeptical. | B．Objective. | C．Conservative. | D．Positive. |
2 . Most environmental pollution on Earth comes from humans and their inventions, such as cars or plastic. Today, car emissions (排放物) are a major source of air pollution leading to climate change, and plastics fill our ocean, creating a significant health issue to marine (海洋的) animals.
And what about the electric light, thought to be one of the greatest human inventions of all time? Electric light can be a beautiful thing, guiding us home when the sun goes down, keeping us safe and making our homes bright. However, like carbon dioxide emissions and plastic, too much of a good thing has started to impact the environment. Light pollution, the inappropriate use of outdoor light, is affecting human health, wildlife behavior and our ability to observe stars.
Light pollution is a global issue. This became obvious when the World Atlas of Artificial Night Sky Brightness, a computer-generated map based on thousands of satellite photos, was published in 2016. Available online for viewing, the map shows how and where our globe is lit up at night. Vast areas of North America, Europe, the Middle East and Asia are glowing (发光) with light, while only the most remote regions on Earth (Greenland, Central African Republic and Niue) are in total darkness. Some of the most light-polluted countries in the world are Singapore, Qatar, and Kuwait.
Sky glow is the brightening of the night sky, mostly over cities, due to the electric lights of cars, streetlamps, offices, factories, outdoor advertising, and buildings, turning night into day for people who work and play long after sunset.
People living in cities with high levels of sky glow have a hard time seeing more than a handful of stars at night. Astronomers are particularly concerned with sky glow pollution as it reduces their ability to view stars.
More than 80 percent of the world’s population, and 99 percent of Americans and Europeans, live under sky glow.
1. What can we learn from paragraph 2?| A．Electric light is the greatest human invention. |
| B．The use of outdoor light must be forbidden. |
| C．Electric light is the main factor to keep us safe. |
| D．Electric light has both advantages and disadvantages. |
| A．Qatar. | B．Kuwait. | C．Niue. | D．Singapore. |
| A．Sky glow costs too much. | B．Sky glow has a bad effect on their sleep. |
| C．Sky glow wastes too much electricity. | D．Sky glow affects their viewing stars. |
| A．Different kinds of pollution | B．Plastic pollution |
| C．Air pollution | D．Light pollution |
3 . Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest is pollution. Pollution comes in many ways. We see it, smell it, drink it and even hear it.
Men have been polluting the earth. Many years ago, the pollution was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, men moved to another place.
Air pollution is now the most serious. Air makes people sick. And lots of people now are trying to use something to clear the air. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us become angry more easily.
Many countries are making rules to fight air pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air.
Pollution by SO2 is now the most dangerous kind of air pollution. It is caused by heavy traffic. It is true that if there are fewer people driving, there will be less air pollution.
Although most of the pollution is caused by us, we are the ones who can change the situation. The earth is our home. We must take care of it. And we must pay more attention to the information in pollution at the same time.
1. Why was the pollution in the past less serious?| A．Because life in the past was easier. | B．Because there were not so many people. |
| C．Because men stayed in one place. | D．Because people used less coal to make fire. |
| A．Air pollution. | B．Noise pollution. |
| C．Light pollution. | D．Water pollution. |
| A．Try to use something to clear the air. | B．Ask people to use public transport more. |
| C．Stop putting dirty smoke into the air. | D．Encourage people to move to another place. |
| A．To prove life is much easier today. | B．To call on us to take care of our earth. |
| C．To show the danger of pollution. | D．To introduce how to fight air pollution. |
4 . Sleeping in a noisy room isn’t only distracting (使人分心的), and it can also harm your health. Although researchers have known for decades that longterm loud noises can harm us, it’s only recently become recognized as a widespread problem.
In a new review of previously published studies, researchers from Germany and Denmark took a look at the ways in which noises, such as an airplane passing by or jackhammer digging in the ground, can affect our hearts. Perhaps the most obvious impact of a loud sound while you are sleeping is that it can wake you up. But, even if you don't remember hearing the noise or you don’t physically get out of bed, it can disrupt you in ways you may not realize.
“Noise is not just causing annoyance, but it actually makes us sick,” said Dr. Thomas Münzel, a professor at Johannes Gutenberg University Mainz. “Regardless of where the sound is coming from, if it gets louder than 60 decibels (分贝),it can increase the risk of heart disease.”
When our body hears these noises, it reacts with a stress reaction. In this case, these sudden and unexpected noises cause hormones(荷尔蒙) to speed up and eventually damage the heart. Although the chance that a single noise will affect you is unlikely, it’s the continuous exposure (接触) to the sound that can finally affect you.
“But our heart health isn’t the only cause for concern. Long-term noise may also raise the risk of type 2 diabetes (糖尿病), depression, and anxiety disorders,” he warns. In the future, Münzel plans to examine how noises from cars, planes, and other vehicles affect the brain. But despite the amount or the depth of research he conducts, it’ll take the help of politicians to improve the effect of noise on our health.
“Politicians have to take into account, in particular, the new findings,” Münzel said, “As for aircraft noise and airports, it is important to make new laws and set new lower noise limits that protect people living close by the airport instead of the owners of the airport.”
1. What do researchers from Germany and Denmark find?| A．Noise does little harm to people who are asleep. |
| B．Noise can cause people’s memory to get worse sharply. |
| C．Noise has been a widespread concern for a long time. |
| D．Noise louder than 60 decibels may cause heart disease. |
| A．Defeat. | B．Harm. | C．Attract. | D．Discourage. |
| A．Politicians should take action to handle noise pollution. |
| B．Münzel will continue other studies on brain diseases. |
| C．Benefits of airport owners are more important than health. |
| D．Attention should be paid to heart health and other diseases. |
| A．Who Is to Blame for Noise Pollution | B．What Should Be Done to Stop Noise |
| C．How Münzel Carried Out His Research | D．How Noise Pollution Harms Our Body |
5 . Most environmental pollution on Earth comes from humans and their inventions, such as cars or plastic. Today, car emissions(排放物) area major source of air pollution leading to climate change, and plastics fill our ocean, creating a significant health issue to marine(海洋的) animals.
And what about the electric light, thought to be one of the greatest human inventions of all time? Electric light can be a beautiful thing, guiding us home when the sun goes down，keeping us safe and making our homes bright. However, like carbon dioxide emissions and plastic, too much of a good thing has started to impact the environment. Light pollution, the inappropriate use of outdoor light, is affecting human health, wildlife behavior and our ability to observe stars.
Light pollution is a global issue. This became obvious when the World Atlas of Artificial Night Sky Brightness, a computer-generated map based on thousands of satellite photos, was published in 2016. Available online for viewing, the map shows how and where our globe is lit up at night. Vast areas of North America, Europe, the Middle East and Asia are glowing(发光) with light, while only the most remote regions on Earth(Greenland, Central African Republic and Niue) are in total darkness. Some of the most light-polluted countries in the world are Singapore, Qatar, and Kuwait.
Sky glow is the brightening of the night sky, mostly over cities, due to the electric lights of cars, street lamps, offices, factories, outdoor advertising, and buildings, turning night into day for people who work and play long after sunset.
People living in cities with high levels of sky glow have a hard time seeing more than a handful of stars at night. Astronomers are particularly concerned with sky glow pollution as it reduces their ability to view stars.
More than 80 percent of the world’s population, and 99 percent of Americans and Europeans, live under sky glow.
1. What can we learn from paragraph 2?| A．The use of outdoor light must be forbidden. |
| B．Electric light has both advantages and disadvantages. |
| C．Electric light is the main factor to keep us safe. |
| D．Electric light is the greatest human invention. |
| A．Qatar. | B．Singapore. | C．Kuwait. | D．Niue. |
| A．Sky glow costs too much. |
| B．Sky glow has a bad effect on their sleep. |
| C．Sky glow affects their viewing stars. |
| D．Sky glow wastes too much electricity. |
| A．Light pollution | B．Plastic pollution |
| C．Different kinds of pollution | D．Air pollution |
6 . As we all know, waste is extremely bad for the environment. Let’s talk about why litter is harmful to our streets and towns, our drinking water, and sea animals.
Waste can have a bad influence on our cities. Cleaning up litter costs US taxpayers (纳税人) and businesses $11.5 billion each year.
As you can see, waste is harmful in many ways.
| A．Everybody wants to breathe fresh air. |
| B．That money could have been spent on parks. |
| C．How do you feel when you see people littering around? |
| D．In the future there might be more waste than fish in the ocean. |
| E．Litter can go into the soil and water and pollute our drinking water. |
| F．We need to stop littering for us, for the environment, and for the planet. |
| G．Did you know every day almost 8 million pieces of litter go into the ocean? |
7 . Ever wonder how this season’s celebrations affect the environment? Guest blogger Krista Fairles takes an amusing look at this very topic.
The holidays are a wonderful, cheerful time when most people wait for Santa to bring them presents. But I’m not like most people. I spend my time wondering just what the environmental impacts of Santa Claus and his reindeer are, and more importantly, how I can calculate those impacts.
Lately I’ve been particularly curious as to whether Santa’s old sled is a clean green flying machine, or if he should be replacing his 8 reindeer with an environmentally-friendly car.
I should mention that, surprisingly, I was unable to find statistics specific to Santa’s magical flying reindeer, so these calculations use numbers from various sources and may not represent actual pollution caused by Santa and his animals. In other words, don’t complain to the govenment about the damage Santa is causing the environment based on this article.
Santa’s yearly trip around the globe is 44,000km long, twice the average of a North American driver. If we assume that the magic provides the altitude for this trip, then reindeer power only needs to push Santa’s sled forward. To complete the trip in 12 hours, I estimate they must travel at a speed of about 3100 km/h. To travel at this speed, for this length of time, the reindeer need to eat an incredible 980 million calories each!
So the next question is: how much food is in 980 million calories? Well, if they’re eating corn, they’d need to eat 16, 500 lbs each-or 1.6 acres of food. Growing 12.8 acres of corn has its own implications for the environment that we’ll leave for another calculation.
We now need to consider that during the global trip the reindeer are “letting out” some of that corn in the form of methane. A resting cow produces 110 kg of methane per year, so flying reindeer would each let out about 4.8 tons. With methane causing 20 times the global warming damage of CO2, and the altitude increasing that damage by 1000% that another 20 times, we can put Santa’s round-trip emissions at 15,488 tons. This is much more than the 100 tons an environmentally-friendly car would release on the same trip!
Bad Santa.
1. According to Paragraph 6, how many acres of corn would Santa need to feed 10 reindeer?| A．1.6. | B．16. | C．12.8. | D．128. |
| A．Christmas celebrations are really a waste of money. |
| B．Vegetarians are more likely to survive than meat-eaters. |
| C．Raising animals has a negative influence on environment. |
| D．The car industry does less harm to environment than farming. |
| A．Serious and boring. | B．Cheerful and friendly. |
| C．Academic and formal. | D．Humorous and concerned. |
| A．Is Santa driving clean and green? |
| B．Santa, watch where you’re going! |
| C．Santa Claus is coming to town! |
| D．Let’s reduce waste on Christmas celebrations! |
8 . The world itself is becoming much smaller by using modern traffic and modern communication means. Life today is much easier than it was hundreds of years ago, but it has brought new problems. One of the biggest problems is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.
Man has been polluting the earth. The more people, the more pollution. Many years ago, the problem was not so serious because there were not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true.
Man is now slowly polluting the whole world.
Air pollution is still the most serious. It’s bad for all living things in the world, but it is not the only one kind of pollution. Water pollution kills our fish and pollutes our drinking water. Noise pollution makes us angry more easily.
Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air. Pollution by SO2 is now the most dangerous kind of air pollution. It is caused by heavy traffic. We are sure that if there are fewer people driving, there will be less air pollution.
The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in pollution at the same time.
1. ________, our world is becoming much smaller.| A．Because of the rise in pollution |
| B．Thanks to science development |
| C．Because the earth is being polluted day and night |
| D．Because the earth is blown away by the wind every year |
| A．much easier than | B．as easy as |
| C．much harder than | D．as hard as |
| A．rubbish(垃圾) | B．noise pollution |
| C．air pollution | D．water pollution |
| A．it makes much noise |
| B．it makes us angry more easily |
| C．it makes our rivers and lakes dirty |
| D．it’s bad for all living things in the world |
9 . The amount of plastic pollution in the oceans is rapidly increasing. This is problematic, as at least 700 species of sea animals — including sharks, whales seabirds and turtles — can be trapped in the stuff or mistake it for a tasty snack. While we know that some species seem to eat plastic because it looks like jellyfish or some other food source, less research has been carried out into what sea plastic smells like to sea animals.
But now, a study from the University of North Carolina at Chapel Hill has found that the coating of algae and microbes (藻类、微生物) that naturally builds up on ocean plastics causes the rubbish to give off the smell of food.
The researchers took 15 healthy turtles, each around five months old and placed them in a laboratory aquarium (水族箱). They then piped in clean water, clean plastic, turtle food, and plastic that had been down in the sea environment for five weeks. The turtles showed no reaction to the smell of clean water or clean plastic. But when they were exposed to the smells of ocean plastic or turtle food, they exhibited hunting behaviour — like sticking their noses out of the water and showing increased activity.
“This finding is important because it’s the first demonstration that the smell of ocean plastics causes animals to eat them,” said Dr Kenneth J Lohmann, who took part in the study.
“It’s common to find the sea turtles with their digestive systems fully or partially blocked because they’ve eaten plastic materials There also are increasing reports of sea turtles that have been ill and stranded on the beach due to their swallow of plastic.”
“Once these plastics are in the ocean we don’t have a good way to remove them or prevent them from smelling like food” said Lohmann. “The best thing we can do is to keep plastic from getting into the ocean at all.”
1. What does the new research mainly focus on?| A．What has caused the sea plastic pollution. |
| B．What sea plastic smells like to sea animals. |
| C．How dangerous the sea environment is. |
| D．How dangerous the sea plastic pollution is. |
| A．The turtles of 5 months old are the most healthy ones. |
| B．The turtles prefer dirty environments to clean ones. |
| C．The clean plastic has no certain smell to attract turtles. |
| D．The clean plastic is more dangerous than the ocean plastic. |
| A．trapped | B．rescued | C．harmed | D．treated |
| A．Sea turtles and sea environment | B．Sea turtles and their enemies |
| C．Sea turtles and sea food chain | D．Sea turtles and sea plastics |
10 . The essence (本质) of fast fashion is to make clothes inexpensively and quickly, to get new trends and styles into stores and online as soon as possible, and it comes at a high social and environmental cost. Keeping production costs low means they can make their clothes cheap, using cheap labour in unsafe working conditions, and in countries with bad environmental regulations.
Throw-away culture is deeply rooted in our society; three in five of our clothing pieces are thrown out within a year. Fast fashion brands keep the consumers hungry and feeling like they need more by attracting them with newness and convincing the consumers that they need what they’re selling. This only results in increasing textile (纺织品) waste as people no longer want but throw it away.
Criticisms of the fast fashion industry include its negative environmental impact: water pollution, the use of toxic (有毒的) chemicals and increasing levels of textile waste. Textile dyeing is the second largest polluter of clean water globally, after agriculture. Fast fashion companies rely on their products being made cheaply and quickly, so they avoid talking when it comes to being aware of their impact on the environment. Greenpeace’s recent Detox Campaign showed that many brands use toxic and dangerous chemicals in their supply chains, and many of the chemicals are either banned or strictly controlled in lots of countries.
In conclusion, the fast fashion industry has a bad effect on our environment through fast fashion brands’ ecological practices and only continues to make the problem last for a long time in the future through extreme consumerist culture. In order for change to happen, the common people need to open their eyes and take measures to prevent the fast fashion from growing.
1. What’s one of the characteristics of fast fashion?| A．Producing clothes quickly. | B．Making people buy old clothes. |
| C．Causing a lot of anxiety. | D．Selling most clothes through stores. |
| A．They are mainly sold online. | B．They are made by cheap labour. |
| C．They save the cost of advertising. | D．They are made in unsafe countries. |
| A．Positive. | B．Surprising. | C．Natural. | D．Puzzling. |
| A．Changing fast fashion brands’ working conditions. |
| B．Changing clothes stores ‘sales model. |
| C．Introducing stricter laws for factories. |
| D．Raising public awareness of preventing fast fashion. |
