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题型:阅读理解-阅读单选 难度:0.4 引用次数:229 题号:15796309

When Don Lyons, director of a seabird restoration program, visited a small valley in Japan, he found a local variety of rice called “cormorant rice”. The grain actually got its name from the seabirds that nested in the trees around the ponds used to supply water to the rice fields. Their droppings (粪), rich in nitrogen (氮) and phosphorus (磷), were washed into the water and eventually went to the rice fields.

The phenomenon that Lyons encountered is not a new one. What is new is that scientists have now calculated an exact value for seabird droppings. Given that 30 percent of the species of seabirds are endangered, researchers published a study that estimates the annual value of seabirds. “I see that people just care about something when it brings benefits and when they can see the benefits,” says Daniel Plazas-Jiménez, a seabird researcher.

To show the benefits seabirds provide, scientists set out to put a price tag on the animals’ droppings. The estimated value of seabird droppings as an organic fertilizer (肥料) against the cost of replacing it with human-made chemical fertilizers was around $474 million. The scientists then estimated that 10% of the profits coming from coral reefs depend on seabird nutrients. According to the United Nations, the annual economic returns of commercial fisheries on coral reefs are about $6.5 billion. So, 10% of this value is around $650 million per year.

The richness of seabird droppings in South America, particularly on the Chincha Islands has been documented for centuries. People there were the first to recognize seabirds’ agricultural benefits. At one point, an estimated 60 million birds built 150-foot-high mounds (堆) of droppings. However, only an estimated 4 million seabirds now live on the Chincha Islands. This loss is part of a global trend.

By the early 1840s, seabird droppings became a full-blown industry; they were commercially mined, transported and sold. The industry crashed around 1880 and reappeared in the early 20th century. Today, interest in seabird droppings is resurgent as consumer demand for organic agriculture and food processing has risen. However, the decline of seabird populations caused by human activities and global warming is absolutely a terrible shock to some areas’ economy.

1. What was the probable reason for people’s naming their rice variety after seabirds?
A.Because seabirds fed on this variety of rice.
B.Because seabirds nested around the rice fields.
C.Because seabirds contributed a lot to the rice’s growth.
D.Because seabirds and the rice depended on the same ponds.
2. What was the aim of researchers’ study?
A.To discover the phenomena related to seabirds.
B.To measure seabirds’ production of droppings.
C.To identify the endangered seabird species.
D.To promote efforts to protect seabirds.
3. How much is seabirds’ waste worth per year according to the scientists?
A.Around $474 million
B.Around $600 million
C.Around $1.1 billion
D.Around $6 billion
4. What does the underlined part in the last paragraph mean?
A.People invest more in the industry related to seabird droppings.
B.People’s enthusiasm for seabird droppings grows stronger.
C.The interest rates of buying seabird droppings are higher.
D.The production of seabird droppings becomes lower.

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【推荐1】The tons of plastic we’re dumping in the oceans is finding a new home—the stomachs of our beautiful marine animals. Yet another reminder of this fact washed ashore in Eastern Indonesia this week. A large amount of waste, including drinking cups and flip-flops, was found in the stomach of a whale that died off the coast near Kapota Island.

The 9.5-metre sperm whale (抹香鲸) was found by rescuers from the Wakatobi National Park. The whale had swallowed 5.9 kilograms of plastic waste containing 115 plastic cups, four plastic bottles, 25 plastic bags, and more than 1,000 other kinds of pieces of plastic, park chief Heri Santoso told the reporter.

“Although we have not been able to   deduce the cause of death, the facts that we see are truly awful,” said Dwi Suprapti, a marine species conservation co-ordinator at WWF Indonesia. She said it was not possible to determine if the plastic had caused the whale’s death because of the animal’s advanced state of decay (腐烂). But this is only the latest.

Four Asian nations—Indonesia, the Philippines, Vietnam and Thailand—account for 50% of the plastic waste in the oceans, according to a report by environmental campaigner Ocean Conservancy and the McKinsey Center for Business and Environment. The Philippines is second to Indonesia when it comes to putting away plastic waste in the oceans, according to a study published in the journal Science in January. Of the 3.2 million mismanaged waste it produces every year, 1.29 million ends up in the ocean.

A report released earlier this year stated that the amount of plastic in the ocean is likely to increase.

1. What can we know about the sperm whale?
A.Its stomach is the home of plastic waste.
B.It died of swallowing lots of plastic waste.
C.It was the first whale to eat plastic waste.
D.It had eaten much plastic waste before its death.
2. Which can best replace the underlined word “deduce” in paragraph 3?
A.confirmB.cause
C.approveD.contain
3. Which country dumps the most plastic waste into the oceans?
A.ThailandB.Indonesia
C.VietnamD.Philippines
4. What’s the main idea of the passage?
A.Philippines puts away 1.29 million tons of plastic.
B.A sperm whale was found dead near Kapota Island.
C.Much dumped plastic waste was found in a dead whale.
D.We should take measures to reduce the waste in whales.
2019-05-23更新 | 264次组卷
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【推荐2】When prehistoric man arrived in new parts of the world, something strange happened to the large animals. They suddenly became extinct. Smaller species survived. The large, slow-growing animals were easy game, and were quickly hunted to extinction. Now something similar could be happening in the oceans.

That the seas are being overfished has been known for years. What researchers such as Ransom Myers and Boris Worm have shown is just how fast things are changing. They have looked at half a century of data from fisheries around the world. Their methods do not attempt to estimate the actual biomass (the amount of living biological matter) of fish species in particular parts of the ocean, but rather changes in that biomass over time. According to their latest paper published in Nature, the biomass of large predators (animals that kill and eat other animals) in a new fishery is reduced on average by 80% within 15 years of the start of exploitation. In some long-fished areas, it has halved again since then.

Dr. Worm acknowledges that the figures are conservative. One reason for this is that fishing technology has improved. Today's vessels (船)can find their prey using satellites and sonar, which were not available 50 years ago. That means a higher proportion of what is in the sea is being caught, so the real difference between present and past is likely to be worse than the one recorded by changes in catch sizes. In the early days, too, longlines (多钩长线) would have been more filled with fish. Some individuals would therefore not have been caught, since no baited hooks (带饵钩)would have been available to trap them, leading to an underestimate of fish stocks in the past. Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked. That is no longer a problem, because there are fewer sharks around now。

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1. The extinction of large prehistoric animals is noted to suggest that____.
A.large animals were easily hurt in the changing environment
B.small species survived as large animals disappeared
C.large sea animals may face the same threat today
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2. By saying these figures are conservative , Dr. Worm means that____ .
A.fishing technology has improved rapidly
B.the catch-sizes are actually smaller than recorded
C.the marine biomass has suffered a greater loss
D.the data collected so far are out of date
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C.the ocean biomass should restore its original level
D.people should adjust the fishing baseline to changing situation
4. The writer seems to be mainly concerned with most fisheries’____ .
A.biomass levelB.management efficiency
C.catch-size limitsD.technological application
2020-01-03更新 | 302次组卷
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【推荐3】Give yourself a test. Which way is the wind blowing? How many kinds of wildflowers can be seen from your front door? If your awareness is as sharp as it could be, you’ll have no trouble answering these questions.

Most of us observed much more as children than we do as adults. A child’s day is filled with fascination, newness and wonder. Curiosity gave us all a natural awareness. But distinctions that were sharp to us as children become unclear; we are numb(麻木的)to new stimulation(刺激), new ideas. Relearning the art of seeing the world around us is quite simple, although it takes practice and requires breaking some bad habits.

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The pressures of "time" and "destination" are further blocks to awareness. I encountered many hikers who were headed to a distant camp-ground with just enough time to get there before dark. It seldom occurred to them to wander a bit, to take a moment to see what’s around them. I asked them what they’d seen. "Oh, a few birds," they said. They seemed bent on their destinations.

Nature seems to unfold to people who watch and wait. Next time you take a walk, no matter where it is, take in all the sights, sounds and sensations. Wander in this frame of mind and you will open a new dimension to your life.z.xxk

1. According to Paragraph 2, compared with adults, children are more ____________.
A.anxious to do wonders
B.sensitive to others’ feelings
C.likely to develop unpleasant habits
D.eager to explore the world around them
2. What idea does the author convey in Paragraph 3?
A.To avoid jumping to conclusions.
B.To stop complaining all the time.
C.To follow the teacher’s advice.
D.To admit mistakes honestly.
3. The bird watchers’ behavior shows that they __________.
A.are very patient in their observation
B.are really fascinated by nature
C.care only about the names of birds
D.question the accuracy of the field guides
4. Why do the hikers take no notice of the surroundings during the journey?
A.The natural beauty isn’t attractive to them.
B.They focus on arriving at the camp in time.
C.The forest in the dark is dangerous for them.
D.They are keen to see rare birds at the destination.
5. In the passage, the author intends to tell us we should __________.
A.fill our senses to feel the wonders of the world
B.get rid of some bad habits in our daily life
C.open our mind to new things and ideas
D.try our best to protect nature
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