1 . Microplastic pollution has been detected in human blood for the first time, with scientists finding the tiny particles(微粒) in almost 80% of the people tested. The discovery shows the particles can travel around the body and may live in organs.
The impact on health is as yet unknown. But researchers are concerned as microplastics cause damage to human cells in the laboratory and air pollution particles are already known to enter the body and cause millions of early deaths a year.
Huge amounts of plastic waste are left in the environment and microplastics now pollute the entire planet, from the top of Mount Everest to the deepest oceans. People were already known to consume the tiny particles via food and water as well as breathing them in, and they have been found in the faeces (排泄物) of babies and adults.
The scientists analysed blood samples from 22 healthy adults and found plastic particles in 17. Half the samples contained PET plastic, which is commonly used in drinks bottles, while a third contained polystyrene, used for packaging food and other products. A quarter of the blood samples contained polyethylene, from which plastic carrier bags are made.
“Our study is the first indication that we have polymer particles(聚合物颗粒) in our blood — it’s a breakthrough result,” said Prof Dick Vethaak, an expert at Vrije Universiteit Amsterdam in the Netherlands. “But we have to extend the research and increase the sample sizes, the number of polymers assessed, etc.” Further studies by a number of groups are already under way, he said.
“It is certainly reasonable to be concerned,” Vethaak said. “The particles are there and are transported throughout the body.” He said previous work had shown that microplastics were 10 times higher in the faeces of babies compared with adults and that babies fed with
plastic bottles are taking millions of microplastic particles a day.
Vethaak acknowledged that the amount and type of plastic varied considerably between the blood samples. “But this is a pioneering study,” he said, with more work now needed. He said the differences might reflect short-term exposure before the blood samples were taken, such as drinking from a plastic-lined coffee cup, or wearing a plastic face mask.
“The big question is what is happening in our body?” Vethaak said. “Are the particles retained in the body? Are they transported to certain organs, such as getting past the blood-brain barrier? And are these levels sufficiently high to cause disease? We urgently need to fund further research so we can find out.”
1. What could be inferred from Paragraph 2?| A．Air Pollution particles can cause death eventually. |
| B．Microplastics can be deadly to humans. |
| C．There is no evidence that microplastics harm human cells. |
| D．Microplastics can travel throughout body and damage organs. |
| A．They are found in most people. |
| B．Polyethylene found in blood samples might be taken from drinks bottles. |
| C．A quarter of the blood samples contained PET particles. |
| D．Half of the microplastics in the blood samples were likely introduced by drinking from plastic containers. |
| A．Doubtful. | B．Negative. | C．Excited. | D．Depressed. |
| A．we are the pioneers in the field of plastic research |
| B．we need more blood examples and more work to do |
| C．we are entering a whole new field of research |
| D．this is an extremely important study |
| A．Political. | B．Fashion. | C．Food. | D．Environment. |
2 . Microplastics — tiny pieces of plastic waste less than five millimetres long that have been degraded by waves, wind and ultraviolet rays — have been discovered in the deepest oceanic trenches and within the stomachs of the organisms that live there, but we have little idea about where the great majority of them end up. More than eight million tonnes of plastic enters our oceans every year, comprising between 80 and 85 percent of all marine trash, but with inadequate data, there are concerns that these figures could be underestimates.
Currently, most of the data we have on microplastics are accidentally captured by research ships, which use plankton nets to collect marine-microorganism samples. However, researchers Christopher Ruf and Madeline Evans from the University of Michigan have discovered an innovative way to identify and track concentrations of microplastics in the ocean.
The technique relies on NASA’s Cyclone Global Navigation Satellite System (CYGNSS), a constellation of eight micro-satellites used to predict hurricanes that calculate wind speeds above the ocean by measuring the roughness of surface waters. As the satellites are continuously recording, Ruf and Evans realised that they collect a great deal of additional data. It was while analysing these data that they noticed some differences-times where the surface of the ocean appeared to be much smoother than it should, given the prevailing wind (盛行风) conditions.
Knowing that water isn’t roughened as much when it contains a lot of floating material, Ruf and Evans identified a pattern that linked areas of unusual smoothness and predicted microplastic distributions. They found that the difference between their measurements, and how much rougher the surface would be if winds of the same speed were blowing across clear water, was “highly correlated with the presence of microplastics, and the degree of the difference also correlated with the concentration of the plastics.”
The research reveals that there are seasonal variations,where the concentrations of microplastics tend to be higher in the summer and lower in the winter in a very clean, periodic way, which Ruf explains mirrors the way in which the ocean circulation changes throughout the year. It also confirms, as was previously thought, that rivers are the main source of ocean microplastics.
Raising awareness of the issue of ocean microplastics among the public and politicians is just one of the researchers’ future aims; they are also in conversation with Duteh non-profit The Ocean Cleanup and Finnish clean-technology specialist Clewat, which are interested in using the information to more efficiently target their trash-collection campaigns.
So far, only one year’s worth of data have been processed since CYGNSS was launched in 2016. By looking at a longer time period, Ruf and Evans aim to determine whether the seasonal pattern is repeatable, and whether the concentration of micmplastics in the ocean is getting worse.
1. What is Paragraph 1 mainly about?| A．The limited knowledge about ocean microplastics. |
| B．The harm of ocean microplastics to sea creatures. |
| C．The methods of degrading ocean microplasties. |
| D．The previous research on ocean microplasties. |
| A．has offered data about the repeatable seasonal pattern |
| B．guides research ships to gather data about sea animals |
| C．provides unexpected data about the changes of sea surface |
| D．was designed to measure the distribution of ocean microplastics |
| A．Microplastics will end up in the stomachs of the ocean organisms. |
| B．Mlicroplastics play a vital role in the yearly ocean circulation changes. |
| C．The surface of the ocean can get smoother with more microplastics in it. |
| D．The new way of tracking microplastics has helped prevent ocean pollution. |
| A．To introduce the technology of CYGNSS. |
| B．To present a way to study ocean microplastics. |
| C．To test an assumption on ocean microplastics. |
| D．To propose a new means of protecting the ocean. |
1.
| A．People used the stoves less often. |
| B．Outdoor air pollution was not that serious. |
| C．Indoor air pollution was related to the way of cooking. |
| D．An increasing number of trees were cut down every year. |
| A．Taking advantage of greener energy. |
| B．Building a base in the Himalayas. |
| C．Depending on animal waste for fuel. |
| D．Finding land covered with forests. |
| A．It was resistant to water. |
| B．It was easy to pack and move. |
| C．It worked well on rainy days. |
| D．It looked like a pot or a pan. |
4 . One of the problems damaging our planet is the number of things we throw away. A more recent addition to the list of things we throw away is e-waste — electronic items that are broken and not recycled.
Recently, there’s a growing trend for repair events and clubs which could be part of a solution to the growing amount of electrical and electronic junk. The BBC visited a Restart Project in London, which is one of many found around the world. One of its operators, Francesco Calo, said that “This project makes total sense.
| A．First of all, this project prolongs the life of electric objects |
| B．It is partly because it’s cheaper to replace them than fix them |
| C．It is reported that many people have made a big fortune from it |
| D．Now solutions have been put forward to give this e-waste a new life |
| E．So it’s thought that doing this could be more profitable than traditional recycling |
| F．As many electrical items contain valuable metals, another solution is e-waste mining |
| G．One of the reasons is that people don’t think their electronic items are fashionable enough |
5 . A recent study published in the journal Science Advances has revealed that the United States ranks as high as third among countries contributing to coastal plastic pollution. The new research challenges the once-held assumption that the US is adequately “managing” its plastic waste. A previous study using 2010 data that did not account for plastic waste exports had ranked the US 20th, globally, in its contribution to ocean plastic pollution.
Using plastic waste generation (产生) data from 2016 — the latest available global numbers — scientists calculated that more than half of all plastics collected for recycling (1.99 million tons of 3.91 million tons collected) in the US were shipped abroad. Of this, 88% of exports went to countries struggling to effectively manage plastics; and between 15-25% was low-value or contaminated (受污染的). It means it was unrecyclable. Taking these factors into account, the researchers estimated that up to 1 million tons of US-generated plastic waste ended up polluting the environment beyond its own borders.
Using 2016 data, the paper also estimated that between 0.91 and 1.25 million tons of plastic waste generated in the US was either littered or illegally dumped into the environment domestically. Combined with waste exports, this means the US contributed up to 2.25 million tons of plastics into the environment. Of this, up to 1.5 million tons of plastics ended up in coastal environments. This ranks the US as high as third globally in contributing to coastal plastic pollution.
“The US generates the most plastic waste of any other country in the world, but rather than looking the problem in the eye, we have outsourced it to developing countries,” said Nick Mallos, senior director of Ocean Conservancy’s Trash Free Seas program and a co-author of the study. “The solution has to start at home. We need to create less, by cutting out unnecessary single-use plastics; we need to create better, by developing innovative new ways to package and deliver goods; and where plastics are inevitable, we need to greatly improve our recycling rates.”
“Previous research has provided global values for plastic input into the environment and coastal areas, but detailed analyses like this one are important for individual countries to further assess their contributions,” said Dr. Jenna Jambeck, Distinguished Professor at the University of Georgia’s College of Engineering and a co-author of the study. “In the case of the United States, it is critically important that we examine our own backyard and take responsibility for our global plastic footprint.”
1. Compared with the previous study, the new one ________.| A．covers data more comprehensively |
| B．excludes plastic waste shipped abroad |
| C．is contrary to the latest global numbers |
| D．challenges the recycling way of plastics |
| A．Over half of it ended up polluting the environment outside the US. |
| B．Most of its exported plastic waste wasn’t worth recycling. |
| C．Less than half of it was actually recycled domestically. |
| D．More of it is littered or illegally dumped than exported. |
| A．plastic pollution in developing countries is more serious |
| B．US has been irresponsible in dealing with its plastic waste |
| C．US should cooperate with others to handle its plastic waste |
| D．innovative means are needed to eliminate single-use plastics |
| A．Plastic Pollution Great Risk to Marine Life |
| B．US Top Contributor to Coastal Plastic Pollution |
| C．Plastic Waste Major Source of Coastal Pollution |
| D．Recycling Effective Way to Address Plastic Waste |
6 . In the deepest dive in a manned submersible(潜水器), US explorer Victor Vescovo spotted and video-recorded a plastic bag and a pile of candy wrappers on the seabed.
His
Since the patent(专利) for plastics was
Most of the discarded(丢弃) plastic products
Every year, about 8 million tons of plastic waste flow into the ocean. It is
This plastic waste
We must do something to
But that’s so much
| A．report | B．discovery | C．record | D．accumulation |
| A．everywhere | B．anywhere | C．somewhere | D．nowhere |
| A．as | B．although | C．but | D．so |
| A．abolished | B．acquired | C．registered | D．advertised |
| A．with | B．without | C．off | D．above |
| A．end up | B．wake up | C．grow up | D．walk up |
| A．continent | B．park | C．island | D．garden |
| A．suggested | B．estimated | C．weighed | D．congratulated |
| A．thousand | B．hundred | C．million | D．billion |
| A．feeds | B．saves | C．cares | D．kills |
| A．looking | B．winding | C．floating | D．jumping |
| A．earth | B．air | C．water | D．environment |
| A．pollution | B．existence | C．temperature | D．cycle |
| A．production | B．supply | C．pyramid | D．trade |
| A．change | B．clean | C．satisfy | D．realize |
| A．otherwise | B．instead | C．therefore | D．meanwhile |
| A．exercise | B．activity | C．fact | D．habit |
| A．harder | B．more effective | C．more courageous | D．easier |
| A．calling for | B．looking for | C．sending for | D．waiting for |
| A．start | B．refuse | C．continue | D．hope |
7 . With the outbreak of the COVID-19, multiple kinds of protective medical equipment, such as disposable(一次性的)masks, have been consumed. Market research indicates a sharp increase rate of 53% in the mask market alone. People often use these types of protective equipment and then throw them without thinking of the consequences, both on the ecosystem and human beings.
Disposable surgical masks are severely affecting the ecosystem. When improperly-handled masks enter the water system, they break up into smaller pieces. Complete masks can trap marine animals, resulting in their impaired mobility and even death. Meanwhile, the poisonous plastic particles will cause marine animals to be poisoned to death or weakness when they consume plastic. Furthermore, these harmful pollutants can severely affect reproduction, growth, and the development of the young. Just like their effects on marine animals, these pollutants can also contribute to severe harm in human bodies, especially in the neuron system. Exposure to micro plastics may cause particle poisoning, cellular damage and neuro-degenerative (神经退化的) diseases like Alzheimer’s disease(阿尔茨海默症).
Despite the potential harm to the ocean system and human neuron system, improperly-handled disposable masks will likely become a dangerous public health threat under the environment of a global pandemic. Instead of helping us fight against the COVID-19, to some extent, micro plastic pollution also causes the potential risk of speeding up the spread of the virus. Micro plastic particles in the ocean can be mixed up with water vapour to form aerosols in the atmosphere because they are small enough to enter the water cycle, where they are transferred from the marine system to the atmosphere in vast amounts and become a source for the disease COVID-19. thus causing the virus to speed up the spread of the global pandemic.
Humans will eventually suffer from the wrongdoing in the ocean systems because humans are nothing but temporary residents of the planet. Just like what the famous English anthropologist, Jane Goodall, has said, “Every individual matters. Every individual makes a difference.”
1. The underlined word “impaired” in paragraph 2 probably means“_________”.| A．strengthened | B．damaged |
| C．completed | D．influenced |
| A．the impact on marine lives’ reproduction, growth and weakness |
| B．the destruction to human’s neuron system, cellular system |
| C．the huge economic loss for people living near the sea |
| D．the great burden of micro plastic particles on ecosystem |
| A．to describe the negative effects of disposed masks on nature and human beings. |
| B．to advise readers to deal with the improperly-handled masks. |
| C．how the improperly-handled masks help spread the virus. |
| D．how to deal with the virus. |
| A．To explain a serious phenomenon caused by the virus. |
| B．To advocate a proper solution to solving the disposable masks. |
| C．To compare the sufferings between marine animals and human beings. |
| D．To analyze the harmful results of the improperly-handled masks. |
1. Where are the mother and her son?
| A．In a forest. | B．Near the Yellow River. | C．In Beijing. |
| A．He can’t find his mother. |
| B．There’s something wrong with his eyes. |
| C．He can’t see the clock tower clearly. |
| A．To cover their faces when going out. |
| B．Not to go out. |
| C．To put on glasses when going out. |
| A．Save water. | B．Keep the balance of nature. | C．Protect the animals. |
9 . You’ve heard that plastic is polluting the oceans—between 4.8 and 12.7 million tonnes enter ocean ecosystems every year. But does one plastic straw or cup really make a difference? Artist Benjamin Von Wong wants you to know that it does. He builds massive sculptures out of plastic garbage, foreing viewers to re-examine their relationship to single-use plastic products.
At the beginning of the year, the artist built a piece called “Strawpocalypse,” a pair of 10-foot-tall plastic waves, frozen mid-crash. Made of 168,000 plastic straws collected from several volunteer beach cleanups, the sculpture made its first appearance at the Estella Place shopping center in Ho Chi Minh City, Vietnam.
Just 9% of global plastic waste is recycled. Plastic straws are by no means the biggest source (来源)of plastic pollution, but they’ve recently come under fire because most people don’t need them to drink with and, because of their small size and weight, they cannot be recycled. Every straw that's part of Von Wong's artwork likely came from a drink that someone used for only a few minutes. Once the drink is gone, the straw will take centuries to disappear.
In a piece from 2018, Von Wong wanted to illustrate (说明) a specific statistic: Every 60 seconds, a truckload's worth of plastic enters the ocean. For this work, titled "Truckload of Plastic" Von Wong and a group of volunteers collected more than 10,000 pieces of plastic, which were then tied together to look like they’d been dumped(倾倒)from a truck all at once.
Von Wong hopes that his work will also help pressure big companies to reduce their plastic footprint.
1. Which is the main idea of the text?| A．Artists’s opinions on plastic safety |
| B．Media Interest in contemporary art |
| C．Responsibility demanded of big companies |
| D．Ocean plastics transformed into statues |
| A．Drawing public attention to plastic waste. |
| B．Beautifying the city he lives in. |
| C．Introducing eco-friendly products. |
| D．Reducing garbage on the beach. |
| A．To explain why they are useful. |
| B．To voice his views on modern art. |
| C．To show the difficulty of their recycling. |
| D．To find a substitute for them. |
| A．Worrying | B．Calming |
| C．Refreshing | D．Challenging |
On the basis of a new report by the Global Alliance on Health and Pollution (GAHP), environment pollution remains the largest threat to human
The GAHP said that more than 90 percent of the pollution-related deaths occur in developing countries. The report noted that such deaths remain a “neglected”(被忽视的）issue,
In addition , the report has shown that pollution raises the risk of heart disease, cancer, lung disease, and other condition. It also said pollution brings
Rachael Kupka, GAHP’s acting director ,says the good news is that controls already exist to help reduce the harmful effects
