1 . Twelve years ago, a young traveler named Rhett Butler from San Francisco, California, visited the Sabah rainforest on Malaysian Borneo. In one area of the rainforest, he watched a bird flying through the trees. The beautiful sight left quite an impression on him. But weeks later, back home, Rhett Butler got the news that trees had been cut down in the area he visited.
That experience led Rhett Butler begin writing a book about rainforests and threats to their existence. But he did not publish the book. Instead, in 1999, he used his research for the book to create a website. The site is Mongabay. Com. His purpose was to inform the public about tropical rainforests. But the subject quickly developed. As a former businessman, he became a respected writer of science and environmental stories.
The popularity of Mongabay. Com attracted advertisers. Small ads on the site pay for its operations. Mongabay.Com has grown and led to other sites. For example, there is a site for children which is called kids. Mongabay.Com. Another one, WildMadangascar.Org, is all about the island nation that Rhett Butler calls his favorite place.
To keep his website going, he travels around the world on several major trips each year. His working tools are a laptop computer, cameras and sometimes diving equipment. He often calls on experts for information. For example, he interviewed Alison Jolly, a top experts on lemurs(狐猴). He interviewed Rodney Jackson, a biologist who established the Snow Leopard Conservancy.
Stories like these have made Mongabay a favorite place on the Internet for researchers, students and teachers. In April, Time.Com named it one of the fifteen top climate and environment websites in the world.
1. What’s the main idea of the passage?A.How Rhett Butler made his website popular. |
B.Rainforest on Malaysian Borneo. |
C.How Rhett Butler protected rare animals. |
D.Rhett Butler and his website. |
A.making websites earns more money than writing books |
B.he wanted to use the information to create a website |
C.the book was not about rainforest protection |
D.he didn’t want to become a writer |
A.Rhett Butler made a lot of money from it. |
B.It attracted many advertisers. |
C.At least two related websites grew from it. |
D.It was set up in 1999. |
A.kept visiting the rainforest |
B.made a great number of advertisements |
C.raised rare snow leopards |
D.traveled around and interviewed experts |
A.Rodney Jackson was once a businessman |
B.kids. Mongabay.Com. has many stories written by kids |
C.WildMadagascar.org is better known than Mongabay.Com |
D.Mongabay.Com was loved by researchers as well as students |
2 . Illegally traded endangered species that escape, forming secondary populations, offer hope to their long-term survival, a study suggests. "This first came to my attention when I read a news story about the seizure of an illegal shipment of 23 yellow crested cockatoos (小葵花凤头鹦鹉),” said Luke Gibson, a college teacher. He learned that the species was critically endangered, which surprised him.
This encouraged Dr. Gibson and his colleague to investigate (调查) how a critically endangered species had become self-sustaining outside of its natural range. They discovered 49 cases of a globally threatened species becoming established as a separate population, which they hadn’t thought of, including the yellow-crested cockatoo in their city.
“This is a species which is primarily threatened by wildlife trade,” he told BBC News. “Poachers (偷猎者) go out into the forest in its native range in eastern Indonesia and capture the bird and then ship them off, usually up to our city where there is a strong demand for pet birds. This is what has fueled the decline of this species in its native range. But it’s really interesting because that same cause also had another effect: some of the people who were keeping this species here accidentally or intentionally released them.” As a result of enough of the birds set free, it allowed a new self-sustaining population to be established in this city.
The government in of Dr. Gibson’s city has made it illegal to capture the species, even though it is a non-native species. Because the city is affluent and relatively well educated, the cases of people breaking the law are extremely rare, explained Dr Gibson, unlike in its native range in Indonesia, where capturing birds form a major source of income.
However, there can be downsides (缺点) to the newly established population of endangered species, such as a limited genetic pool, and suffering from novel diseases. It did also present a possible “very interesting” opportunity for conservationists, Dr. Gibson suggested. This would involve “harvesting” some of the newly established secondary population, which may provide a way to help slow global biodiversity loss.
1. What was beyond Gibson’s expectations according to the first paragraph?A.The high rate of wildlife trade. | B.The preciousness of the birds. |
C.The fact that the birds nearly disappear. | D.The news that the birds were poached. |
A.They formed a separate population. | B.They were kept as pet birds. |
C.They were traded illegally. | D.They were killed for research. |
A.Peace-loving. | B.Rich. |
C.Free. | D.Environment-friendly. |
A.To appeal to everyone to stop the wildlife trade. |
B.To explain the challenge the wild birds are facing. |
C.To introduce a creative approach to wildlife conservation. |
D.To raise peopled awareness of protecting endangered species. |
3 . Lake Victoria is best known to the general public following the introduction of the 2004 documentary Darwin’s Nightmare, which focuses on the environmental and social effects of the Nile perch (河鲈) fishing industry. The Nile perch is the largest freshwater fish, which can grow up to two metres long and weigh 200kg. Its introduction into Lake Victoria in the 1950s and its rapid population growth in the 1960s gradually wiped out the native fish species living in the lake, causing a major ecological disaster. Today, the Nile perch population can be found everywhere but has reduced slightly due to overfishing, allowing some species to partially recover.
What is less well known, and perhaps interacting with the presence of the Nile perch, but equally damaging to the ecosystem, is the general water quality of the lake. “This declined sharply between the 1960s and the 1990s due to eutrophication (富营养化), which is caused by increased inputs of nutrients (营养物) into the water bodies as a result of increased human activities in the catchment area.” explains Alberto Borges, FNRS Research Director at the Laboratory of Chemical Oceanography from the University of Liege.
From 2018 to 2019, a research team led by Alberto Borges, studied the biomass (生物量) and composition of phytoplankton (浮游植物) as well as the nutrient status of the lake during three scientific missions. This study shows that the phytoplankton camass has decreased by about seven times compared to the 1990s.” says the researchers. “and that the species composition has also changed in a subtle way.” What seems to be good news for the environment of Lake Victoria may only be on the surface.
“This means that the current improvement in water quality in Lake Victoria may only be temporary and that conditions could become worse again in the future due to continued climate warming.” says Alberto Borges.
1. Why was the documentary Darwin’s Nightmare made in 2004?A.To honor Darwin’s great contributions. |
B.To make Lake Victoria known to the world. |
C.To record the serious pollution in Lake Victoria. |
D.To show how the Nile perch fishing industry affected Lake Victoria. |
A.It was disastrous to Lake Victoria. |
B.It helped control other species in Lake Victoria. |
C.It benefited the fishermen a lot in Lake Victoria area. |
D.It greatly improved the water quality in Lake Victoria. |
A.The fishing industry. | B.The decreased number of fish. |
C.The decrease of phytoplankton. | D.More and more inputs of nutrients. |
A.Hopeful. | B.Deeply concerned. |
C.Indifferent | D.Cautiously optimistic |
4 . In 2016, a team of Japanese scientists found bacteria capable of breaking down and “eating” one of the world’s most popular plastics-polyethylene terephthalate(PET). It was valued as a potential breakthrough at the time. But a new discovery came as a team of British scientists examined an enzyme(酶) produced by the Japanese bacteria to find out more about its structure. While operating the structure to better understand how it worked, they accidentally created the changed enzyme that’s even more efficient at breaking down plastic bottles.
The researchers are now working to further improve the enzyme so it can be used on an industrial scale. It’s possible that within the next few years there could be an industrially possible process for turning PET into other substances so it can be recycled.
The ability to scale up the process will be important. Plastic pollution is fast becoming one of the biggest environmental issues of our time. More than 1 million plastic bottles are bought around the world every minute. Most of these bottles are made from PET,which can take up to1000 years to biodegrade(生物降解), and many are left in the oceans. Over half of global PET waste is not collected for recycling and only 7 percent of bottles are recycled into new bottles.
Some scientists say the breakthrough, though promising, is nowhere near enough to solve our pollution crisis. These enzymes are not abundantly present in nature. So you would need to produce the enzyme first, then add it to the PET plastic to degrade it.”This is likely to be a slow process. If you have gone through the trouble of collecting the PET waste, then there are clearly far better ways to recycle it or burn it for energy,” said Wim, head of the Industrial Biotechnology Center. He suggested the use of commercially available biodegradable bioplastics would still be a better bet.
1. What unexpected discovery did the British scientists make?A.An effective way to deal with plastic waste. |
B.A potential solution in collecting PET waste. |
C.The way to understand the structure of enzyme better. |
D.The real value of the discovery by Japanese scientists. |
A.The process to find the enzyme. |
B.The process to make more plastics. |
C.The process to reduce the PET waste. |
D.The process to produce kind of new PET. |
A.Large quantities of plastic bottles are used. |
B.Ocean plastic waste is harder to biodegrade |
C.Most of the PET waste is left without treatment. |
D.Most of the plastic products are made from PET. |
A.The enzyme does not exist in nature. |
B.The enzyme has helped to solve the plastic problems. |
C.Burning plastic waste for energy is now the best way to rid it. |
D.We have a long way to go to use the enzyme to recycle PET waste. |
5 . When you think of the Arctic, you imagine an icy land of pure white snow, which is considered to be the last really clean place
The researchers state that microplastics in snow suggest that microplastics may be in the air that we
Previous research has found that they flow over long distances and into our oceans,
6 . Imagine a mass of floating waste is two times the size of the state of Texas. Texas has a land area of more than 678,000 square kilometers. So it might be difficult to imagine anything twice as big.
All together, this mass of waste flowing in the North Pacific Ocean is known as the Great Pacific Ocean Garbage Patch. It weighs about 3,500, 000 tons. The waste includes bags, bottles and containers—plastic products of all kinds.
The eastern part of the Great Pacific Ocean Garbage Patch is about 1,600 kilometers west of California. The western part is west of the Hawaiian Islands and east of Japan. The area has been described as a kind of oceanic desert, with light winds and slow moving water currents (流, 流动). The water moves so slow that garbage from all over the world collects there.
In recent years, there have been growing concerns about the floating garbage and its effect on sea creatures and human health. Scientists say thousands of animals get trapped in the floating waste, resulting in death or injury. Even more die from a lack of food or water after swallowing pieces of plastic. The trash can also make animals feel full, diminishing their desire to eat or drink.
The floating garbage also can have harmful effects on people. There is an increased threat of infection (感染) of disease from polluted waste, and from eating fish that swallowed waste. Divers can also get trapped in the plastic.
Its existence first gained public attention in 1997. That was when racing boat captain and oceanographer Charles Moore and his crew sailed into the garbage while returning from a racing event. Five years earlier, another oceanographer learnt of the trash after a shipment of rubber duckies got lost at sea. Many of those toys are now part of the Great Pacific Ocean Garbage Patch.
1. The first paragraph is written to .A.lead in the topic of the text |
B.inspire readers’ imagination |
C.develop readers’ interest in Texas |
D.talk about reasons for water pollution |
A.Increasing. | B.Determining. |
C.Weakening. | D.Reserving. |
A.It gives rise to various diseases. |
B.It does great harm to sea animals. |
C.Causes of it still remain unknown. |
D.Efforts to clear it have been made. |
A.To warn people about dangers of diving in the ocean. |
B.To explore the future of the North Pacific Ocean. |
C.To call on people to protect ocean environment. |
D.To display some facts about floating waste. |
1.减少塑料的使用; 2.保持海滩和水路干净; 3.向更多人宣传海洋保护
注意:
1.词数100左右;
2.可以适当增加细节,以使行文连贯。
参考词汇:水路waterway
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8 . In the United States,a company is working on a project that could change the way we think about public transportation.Its planned system would move people around in steel tubes.Those passengers would be traveling at speeds of up to 1,200 kilometers per hour.
The futuristic steel tube transportation system is called Hyper1oop.Workers plan to test the system next year in a specially built community called Quay Valley.The town will be powered entirely by energy from the sun.
The Hyperloop transport system is the idea of businessman Elon Musk.Dirk Ahlborn is head of Hyperloop Transportation Technologies.He says his company has taken Mr.Musk’s idea and is developing a system that will be safe,environmentally friendly and fast.
“It’s 100 percent solar powered…we’re not going to get up to 760 miles per hour,but we believe we can actually break the records that are existing right now.”
This means that a four-hour drive from Los Angeles,California to Las Vegas,Nevada,could someday take only 30 minutes by Hyperloop.The system involves a series of capsules that float inside a long tube.These containers would not need to travel along a pathway or track.The system has been designed to operate above or below ground.
“Inside the tube you create a low pressure environment very similar to an airplane that’s at high altitudes.So now the capsule travelling inside the tube doesn’t come up against as much resistance,and therefore can travel really fast with very little energy.”
Dick Ahlborn and his company will use an eight—kilometer track in Quay Valley to find the best way to set up passenger traffic and repair capsules.A larger system will cost an estimated six to $10 billion to build.If Mr.Ahlborn and his company succeed,we may one day see these very fast Hyperloop capsules speeding through tubes around the world.
1. Which of the following is true of Hyperloop?A.It will travel along a pathway or track. |
B.It will use more energy than current trains. |
C.There is a high pressure inside the tube of it. |
D.A series of experiments on it will be carried on. |
A.Dirk is worried about the speed of Hyperloop |
B.Hyperloop has been built in the United States |
C.Hyperloop will be powered by energy from the sun |
D.Hyperloop has reached to 760 miles per hour |
A.Systems. | B.Capsules. | C.Tubes. | D.Airplanes. |
A.Hyperloop Is Closer To Reality | B.Hyperloop Will Test At Quay Valley |
C.Elon Musk’s Idea Is Under Discussion | D.Hyperloop Travels Around The World |
9 . “Plogging” is a new fitness trend (趋势). It is a combination of “jogging” and the Swedish phrase “plocka upp”, meaning “pick up”. It encourages people to stop while out on jogs to pick up litter.
Started in Sweden around 2016, plogging is now going global.
Like other fitness trends, there are plenty of plogging pictures and videos online.
Plogging is a great way to encourage people to make a difference in their local environment.
A.They clearly show what this trend looks like. |
B.Plogging is suitable for all ages and fitness levels. |
C.If you’re not a runner, biking or walking works too. |
D.It is appealing because it is simple and meaningful. |
E.More and more runners are turning their jogs into plogs. |
F.So it adds the idea of environmental protection to the sport. |
G.Plogging isn’t the first fitness trend to connect sports with a good cause. |
Fabien Cousteau was born with deep love for the ocean. His grandfather and his father were ocean
Fabien is well known for his study of sharks. During 2000﹣2002, he created a TV special based on the shark attacks that
For the next four years, Fabien was part of a series called Ocean Adventures,
In 2010, Fabien started a nonprofit project to help restore water ecosystems by replanting key ocean species. From June 1to July 2,2014, Fabien and his team spent 31days underwater to discover
Fabine is