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. |
1. 介绍活动；
2. 不同观点；
3. 发出呼吁。
注意：1. 词数80左右；
2. 题目已为你写好。
An Interview about Plastic Pollution
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3 . If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of nocturnal (夜间活动) species on this planet. Instead, we are diurnal creatures, with eyes adapted to living in the sun’s light. This is a basic evolutionary fact, even though most of us don’t think of ourselves as diurnal beings. Yet it’s the only way to explain what we’ve done to the night: We’ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences — called light pollution — whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky. Ill-designed lighting washes out the darkness of night and completely changes the light levels — and light rhythms — to which many forms of life, including ourselves, have adapted. Wherever human light spills into the natural world, some aspect of life is affected.
In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze (霾) that mirrors our fear of the dark. We’ve grown so used to this orange haze that the original glory of an unlit night — dark enough for the planet Venus to throw shadows on Earth — is wholly beyond our experience, beyond memory almost.
We’ve lit up the night as if it were an unoccupied country, when nothing could be further from the truth. Among mammals alone, the number of nocturnal species is astonishing. Light is a powerful biological force, and on many species it acts as a magnet. The effect is so powerful that scientists speak of songbirds and seabirds being “captured” by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal, throwing nearly every aspect of their behavior out of joint, including their nighttime breeding choruses. Humans are no less trapped by light pollution than the frogs. Like most other creatures, we do need darkness. Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our own making, we have cut ourselves off from our evolutionary and cultural heritage — the light of the stars and the rhythms of day and night. In a very real sense, light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way — the edge of our galaxy — arching overhead.
1. According to the passage, human beings .| A．prefer to live in the darkness |
| B．are used to living in the day light |
| C．were curious about the midnight world |
| D．had to stay at home with the light of the moon |
| A．The night. | B．The moon. | C．The sky. | D．The planet. |
| A．provide examples of animal protection. |
| B．show how light pollution affects animals. |
| C．compare the living habits of both species. |
| D．explain why the number of certain species has declined. |
| A．The Magic Light. | B．The Orange Haze. |
| C．The Disappearing Night. | D．The Rhythms of Nature. |
4 . Nuclear pollution is a serious global
When nuclear accidents occur in coastal areas, the
Following the Fukushima nuclear disaster in 2011, efforts to cool the reactors by pumping in seawater resulted in the
This
| A．change | B．opportunity | C．concern | D．possibility |
| A．caused | B．posed | C．created | D．increased |
| A．resulted in | B．led to | C．brought about | D．caused |
| A．terrestrial | B．aquatic | C．marine | D．atmospheric |
| A．balancing | B．regulating | C．considering | D．stabilizing |
| A．heightened | B．raised | C．decreased | D．lifted |
| A．minor | B．slight | C．substantial | D．insignificant |
| A．accumulation | B．storage | C．deposition | D．buildup |
| A．Therefore | B．Despite | C．However | D．Hence |
| A．from | B．by | C．of | D．in |
| A．residents | B．citizens | C．inhabitants | D．dwellers |
| A．issue | B．measure | C．release | D．disposal |
| A．web | B．chain | C．network | D．system |
| A．urgent | B．immediate | C．pressing | D．critical |
| A．address | B．tackle | C．solve | D．resolve |
There are
6 . In today’s world, almost everyone knows that air pollution and water pollution are harmful to people’s health. However, not all the persons know that noise is also a kind of pollution, and that is harmful to human health, too.
People who work and live under noisy conditions usually become deaf. Today, however, scientists believe that 10 percent of workers in Britain are being deafened by the noise where they work. Many of the workers who print newspapers and books, and who weave (织) cloth become deaf. Quite a few people living near airports also become deaf. Recently it was discovered that many teenagers in America could hear no better than 65-year-old persons, for these young people like to listen to pop music and most of pop music is a kind of noise. Besides, noise produced by jet planes or machines will make people’s life difficult and unpleasant, or even make people ill or even drive them mad.
It is said that a continuous noise of over 85 decibels (分贝) can cause deafness. Now the governments in many countries have made laws to control noise and make it less than 85 decibels.
In China, the government is trying to solve not only air and water pollution problems but also noise pollution problems.
1. What kind of people go deaf easily go deaf?| A．People who work and live under noisy conditions go deaf easily |
| B．People who go shopping go deaf easily |
| C．People who exercise every day go deaf easily |
| D．People who like to do housework go deaf easily |
| A．air pollution | B．water pollution | C．noise pollution | D．world pollution |
| A．less than 85 | B．less than 65 | C．about 65 | D．more than 85 |
| A．they are working in noisy places | B．they often listen to pop music |
| C．they live near airports | D．they are too busy to listen to others’ talk |
| A．only the air pollution | B．only the air and water pollution |
| C．only the water pollution | D．the air, water and noise pollution |
Japan said on Tuesday that it had decided to
The
“The Japanese government ignores concerns and strong opposition both at home and abroad. Such an
Greenpeace(绿色和平组织)criticized Japan’s plan and said there are other solutions that should
8 . Naturalist Enzo Suma, who is now 40, lives in Puglia, a region in southern Italy whose long coastline faces the Adriatic Sea. Floating waste accumulates in this relatively enclosed part of the Mediterranean, unlike the open ocean, where the waste tends to be spread over a vast area. Feeling concerned about that, Suma makes it a habit to pick up the washed-up waste along the shore, especially after big winter storms.
One day, Suma was walking along the beach near his home when he discovered a bottle of Coke. Suma noticed on the bottle that the price, clearly printed on the bottom, was in lire, a currency (货币) that hadn’t been used in Italy since it was replaced by the euro in 2002. Could a plastic container have well survived in the Mediterranean, he wondered, for about two decades?
That led him to founding the Archeoplastica museum. It has a collection of about 500 unique pieces recovered from Italian shores and the Coke bottle is the first one of them. All collection demonstrates the unsettling life force of plastic waste in the environment. “Seeing that a product people may have used 30, 40, or 50 years ago remains still unchanged, you’ll feel different. It’s a great shock,” Suma said to a reporter. So Suma often exhibits selected pieces from the Archeoplastica collection at local schools around his hometown of Ostuni.
“The playful side of the work allows you to arrive at the less beautiful side of things,” Suma acknowledged. “Plastic is a kind of useful substance. But it’s unthinkable that a water bottle, made from a material designed to last so long, can be used for just a few days—or even minutes—before becoming garbage. Clean the beaches. Clean the oceans. Recycle. But if we are still throwing out plastics, none of those are going to be long-term solutions.”
1. What’s Suma’s concern about his living place?| A．Its long coastline is disappearing. | B．Big storms frequently hit the area. |
| C．Floating waste spreads over a vast area. | D．The waste pollution on shore is worsening. |
| A．They have a history of more than half a century. |
| B．They were quite valuable before turning into waste. |
| C．They’re more like educational exhibits than garbage. |
| D．They have stronger life force than ordinary plastic products. |
| A．Creative, devoted and socially responsible. | B．Enthusiastic, ambitious and adventurous. |
| C．Generous, cautious and humorous. | D．Curious, efficient and playful. |
| A．The birth of plastics has greatly served humans. |
| B．The key to tackling the plastic pollution is to stop littering. |
| C．The plastic problem can be solved by cleaning and recycling. |
| D．People should be more aware of the powerful functions of plastics. |
9 . Have you ever stopped to consider how empty the world would look without trees? Below are five of the top benefits that trees provide.
Trees help you heal faster. Natural environments, including forests, help you reach a more positive state of mind.
Trees reduce air pollution and improve respiratory (呼吸的) health. Trees take in many harmful pollutants from our environment.
Trees provide oxygen. Trees are like the lungs of our Earth. They supply us with oxygen while taking away our carbon dioxide and ask for nothing in return. A single tree can provide enough oxygen for four people.
Trees cool cities. Trees cool things down by offering shade and through evapotranspiration (蒸腾作用).
| A．Trees cheer you up! |
| B．Trees help reduce the effects of climate change. |
| C．This, in turn, affects your overall state of wellness. |
| D．In fact, large forests can influence regional weather patterns. |
| E．So plant more trees around your home if you want to feel cooler. |
| F．And of course, trees also provide plenty of oxygen for birds and other wildlife. |
| G．For example, in the US, forests remove 17.4 million tons of pollution per year. |
10 . A new study finds too much light at night can cut the number of seeds a plant produces. Researchers put up street lights in Swiss meadows, far from any real street. The setup mimicked (模拟) urban light pollution. In these now-light-polluted fields, flowers had 62 percent fewer night visitors—insect pollinators(传粉者)—than the flowers in
Cabbage thistles are the most common flowers in these meadows. Fewer insect visitors at night could mean less pollen (花粉) pollinated from plant to plant (the first step in producing seeds). “For the thistles, daytime pollinator visits didn’t make up for this loss at night,” says Eva Knop, an ecologist at the University of Bern in Switzerland. Overall, night-lit plants produced one-eighth fewer seeds than plants that got full nights of darkness did.
“Light pollution might affect a whole network of plants and their pollinators,” Knop and her colleagues now suggest. Indeed, night pollination is not just a lonely business for a few special plants. There are lots of links between production of pollen by night and that by day. Plants with a lot of night visits are often very busy by day, too. Light at night that decreases seed numbers could over time mean fewer new plants. And fewer plants could mean less food and shelter for daytime insects. Therefore, a lot of pollinators working day and night shifts could be affected, which is what Knop worries about.
The new study is the first to show how artificial light affects plants’ ability to produce seeds. The test is also unusual because it considers all kinds of insect pollinators instead of focusing only on night-flying insects. The researchers paid special attention to the cabbage thistle, but they also mapped which kinds of insects visited other plants by day or night.
1. Why were street lights put up in the meadows?| A．To copy light pollution. |
| B．To promote urbanization. |
| C．To accelerate plant growth. |
| D．To attract insect pollinators. |
| A．They attract only night visitors. |
| B．They grow slowly during the night. |
| C．They are the most common Swiss flowers. |
| D．They rely on insects to help produce seeds. |
| A．sight | B．numbers | C．growth | D．food and shelter |
| A．Plants attract more insects due to light pollution. |
| B．Night-flying insects matter more than daytime ones. |
| C．Light pollution may affect plants seed numbers. |
| D．Researchers found ways to protect the insects. |
