| A．Swimming. | B．Doing the research. | C．Catching fish. |
2 . 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 |
3 . As newer, more advanced technologies come out, huge amounts of electronics (电子产品) are thrown away, instead of being reused. These goods often end up in landfills, where the chemicals inside them may be a danger to the environment. Electronics can contain harmful materials. If these materials get into the ground or water, the pollution can cause serious problems. Most electronics require metals. These metals must be mined from the Earth. Often the mining process creates serious pollution.
A group known as Waste Electrical and Electronic Equipment (WEEE) Forum is trying to make people more aware of the problems of e-waste. Recently, the WEEE Forum asked researchers from the United Nations (UN) to study a kind of e-waste that’s often not noticed because people don’t consider the goods to be electronics. The WEEE Forum calls this kind “unable-to-be-seen” e-waste.
The UN study shows that about 1/6 of all e-waste is “unable-to-be-seen”. Though it’s “unable-to-be-seen”, it’s certainly not a small amount. The “unable-to-be-seen” e-waste weighs about 9 billion kilograms. The WEEE Forum says that if this e-waste were put into 40-ton trucks and the trucks were then lined up, the line of trucks would be about 5,630 kilometers long.
The surprising kind leading the “unable-to-be-seen” e-waste group was toys. Worldwide, roughly 7.3 billion electronic toys are thrown away each year. These include goods like car racing sets, electric trains, and musical toys. They also include toys with electronic parts, like dolls that speak or games with electronic timers. In all, toys make up about 35% of “unable-to-be-seen” e-waste. But the problem is far larger than just toys. The report also shows that other everyday goods like home alarms, smoke alarms, power tools, and computer cables (电缆) are also big sources of “unable-to-be-seen” e-waste.
The WEEE Forum is hoping that as more people and governments become aware of e-waste, they will make a much greater effort to make sure electronics get reused.
1. What is paragraph 1 mainly about?| A．The amount of electronics. | B．The development of electronics. |
| C．The ways of reusing electronics. | D．The pollution of electronics. |
| A．People’s interest in electronics’ character. |
| B．People’s impression on electronics’ package. |
| C．People’s misunderstanding of electronics. |
| D．People’s struggle to adapt to electronics. |
| A．By showing numbers. | B．By providing examples. |
| C．By making a summary. | D．By making a comparison, |
| A．Designing advanced electronics. | B．Making electronics get reused. |
| C．Stopping giving away electronics. | D．Reducing electronics’ production. |
A sandstorm,
5 . We all have an idea about the common types of environmental problems. However, light pollution may be a new term to many of us. But, the fact is that it does affect mankind, other living forms and the environment as a whole.
What is light pollution? It presents all forms of misused man-made light. The obvious cause of light pollution is the use of outdoor lighting products improperly. It can be office lighting, car headlights, station lights, streetlights and many more.
Light pollution is harmful to both animals and plants. Upon studies, it is found that obvious effects are observed in the behaviour of animals that are active at night. Needless to mention, bright light at night makes it difficult for these animals to hunt, wander and perform their regular activities. Light pollution is directly or indirectly responsible for causing several diseases. Its effects are related to disturbance in the physical rhythm (节奏). It contributes to risks of developing cancerous cells. So, it’s nothing less than a threat to human health.
You have already seen the negative effects of light pollution on animals and human health. Apart from this, the actual cost of misused light is about millions of dollars every year. It also leads to the release of greenhouse gases and global warming. After all, coal or gas is used for producing electricity.
While outdoor lighting and using man-made lighting products are part of our modern lifestyle, some simple ways will surely help in reducing light pollution. For example, while installing (安装) outdoor lighting, make sure that they are pointed downwards. Also, use only the required lighting equipment for both home and offices. Believe it or not, many people living in the urban areas cannot view clear sky and stars at night. Let’s contribute our part in reducing the pollution.
1. What can we learn about light pollution?| A．It has little effect on plants. |
| B．It contributes to most cancers. |
| C．It is a negative fruit of light technology. |
| D．It affects animals’ behavior during the day. |
| A．It increases the temperature at night. |
| B．It creates clouds in parts of the Earth. |
| C．It stops the release of greenhouse gases. |
| D．It is related to the burning of coal and gas. |
| A．Forbid the use of outdoor lighting. |
| B．Use clean energy to produce electricity. |
| C．Avoid unnecessary lights at home and offices. |
| D．Reduce money spent on light in urban areas. |
| A．Citizens should be banned to install outdoor lighting. |
| B．Only simple ways can help reduce light pollution. |
| C．There is no clear sky or stars over the urban areas. |
| D．Light pollution needs to be dealt with urgently. |
6 . A Plastic Ocean is a film to make you think.Think,and then act.We need to take action on our dependence on plastic.We’ve been producing plastic in huge quantities.Drinking bottles,shopping bags and even clothes are made with plastic.
The film begins as a journey to film the largest animal on the planet,the blue whale.But during the journey the filmmakers make the shocking discovery of a huge,thick layer of plastic floating in the Indian Ocean.
In the film there are beautiful shots of the seas and marine life.
They present short-term and long-term solutions.These include avoiding plastic containers and recycling as much as you can.The filmmakers also stress the need for governments to work more on recycling programmes.
We make a shocking amount of plastic.Over 300 million tons of plastic are produced every year,and at least 8 million of those are dumped into the oceans.The results are disastrous,but it isn’t too late to change.
| A．This causes them to travel around the world to look at other affected areas. |
| B．Once you’ve seen the film,you’ll realize it is time to do our part. |
| C．It has raised public concern all over the world. |
| D．We live in a world full of plastic,and only a small amount is recycled. |
| E．But the film doesn’t only present the negative side. |
| F．In conclusion,we only have one earth to live on. |
| G．These are contrasted with dumps of plastic rubbish. |
7 . Most environmental pollution comes from humans and their inventions. The electric bulbs are thought to be one of the greatest human inventions of all time. However, too much of a good thing has started to negatively impact the environment. Light pollution, the extreme or inappropriate use of outdoor artificial light, is affecting human health and wildlife behavior. There is a global movement to reduce light pollution, and everyone can help.
Light pollution is a global issue. This became particularly obvious when the World Atlas (地图册)of Night Sky Brightness, a computer-generated map based on thousands of satellite photos, was published in 2016. Vast areas of North America, Europe, the Middle East, and Asia are glowing with light, while only Siberia, the Sahara, and the Amazon are in total darkness.
Artificial light can wreak havoc on natural body rhythms in both humans and animals. It interrupts sleep and confuses the circadian rhythm(生理节奏)一the internal, twenty-four-hour clock that guides day and night activities and affects physiological processes in nearly all living organisms. One of these processes is the production of the hormone melatonin(褪黑素), which is released when it is dark and is prevented when there is light. An increased amount of light at night lowers melatonin production, which results in lack of sleep, headaches, stress, anxiety, and other health problems. Blue light, in particular, has been shown to reduce levels of melatonin in humans. It is found in cell phones and other computer devices, as well as in light-emitting diodes (LEDs), the kinds of bulbs that have become popular at home and in industrial and city lighting due to their low cost and energy efficiency.
Studies show that light pollution is also impacting animal behaviors, such as migration (迁徙)patterns and habitat formation. Because of light pollution, sea turtles guided by moonlight during migration get confused, lose their way, and often die. Large numbers of insects, a primary food source for birds and other animals, are drawn to artificial light and are instantly killed upon contact with light sources. Even animals living under the deep sea may be affected by underwater artificial lighting. One study looked at how animals in sea responded to brightly lit panels put under water off the coast of Wales. Fewer filter feeding animals(滤食性动物), such as the sea squirt(海鞘), made their homes near the lighted panels. This could mean that the artificial light is altering ocean ecosystems.
The good news is that light pollution, unlike many other forms of pollution, is reversible(可逆的)and each one of us can make a difference! Now, many people are taking action to reduce light pollution and bring back the natural night sky. Individuals are urged to use outdoor lighting only when and where it is needed, to make sure outdoor lights are properly shielded (遮挡)and direct light down instead of up into the sky, and to close window blinds, shades, and curtains at night to keep light inside.
1. What does the underlined phrase “wreak havoc on” in Para. 3 probably mean?| A．Greatly improve. | B．Well maintain. |
| C．Strictly manage. | D．Seriously damage. |
| A．Light pollution was first studied as a global issue in 2016. |
| B．Deep-sea environment can help animals avoid light pollution. |
| C．Artificial light affects the sense of direction and habits of animals. |
| D．LEDs can be used more because of low cost and energy efficiency. |
| A．Unconcerned. | B．Negative. |
| C．Neutral. | D．Positive. |
| A．To call on people to reduce light pollution. |
| B．To discuss fors and againsts of artificial light. |
| C．To give suggestions to protect environment. |
| D．To show development prospect of artificial light. |
8 . Plastics are amazing materials, which are widely used in our daily life. Besides, they’re often cheap to make. About 8. 3 billion metric tons of plastic have been produced to date. That’s about 1,400 times the weight of the Great Pyramid of Giza. Some of that plastic is still in use. But about 5. 8 billion metric tons have been thrown away.
All that plastic waste is an environmental scourge (祸根). Only about 9 percent of plastic waste has been recycled. Another 12 percent has been burned. The remaining 79 percent wound up in landfills or in nature. And that plastic, like a single Lego block, takes a long time to decompose (分解).
Plastic litters the world from the highest mountaintop to the deepest seafloor. Many animals mistake this rubbish for food. If they get full, these animals may forget to eat real food and suffer. Plastic rubbish in the oceans also leaves birds, turtles and other wildlife in a jam.
Big pieces of plastic aren’t the only problem. Abandoned plastic can break into tiny bits called microplastics. Winds blow these bits far and wide. Ocean currents can spread them throughout the sea. These pollutants build up inside animals. They also get into our food and drinking water. Each American is likely to consume more than 70, 000 microplastic pieces per year. Right now, no one knows what risk that might bring.
Scientists have some ideas about how to clean up this mess. The Ocean Cleanup is developing cleanup systems to fish out plastic pieces from the Great Pacific Garbage Patch. Microbes or mealworms with an appetite for plastic might someday eat the garbage. And new nanotechnology (纳米技术) could help microplastics decompose in the environment. But many of these plans are still far from effective so far. The best way to help Earth right now is to stop buying so much plastic — and then throwing it out — in the first place.
1. What does the Lego block show about plastic waste?| A．It is hard to break down. | B．Little of it has been burned. |
| C．It is easy to pile up. | D．Most of it ends up in landfills. |
| A．By starving them. | B．By reducing their food. |
| C．By piling up in their homes. | D．By changing the environment. |
| A．Opposed. | B．Supportive. | C．Indifferent. | D．Doubtful. |
| A．To criticize plastic production. | B．To suggest ways to handle plastic. |
| C．To advocate environmental protection. | D．To introduce the state of plastic pollution. |
| A．The fish in it has died out. |
| B．It has stopped flowing. |
| C．It’s got badly polluted. |
We can also
