Scientists in Canada say big fish have almost disappeared from the world since the start of industrial(产业的) fishing in the 1950s. The scientists found the numbers of some kinds of large fish have dropped by ninety percent in the past fifty years.
The study took ten years. The researchers gathered records from fishing businesses and governments around the world. The magazine Nature published the findings.
The scientists say the common method called long line fishing ravages the populations of large fish. This method involves many fishing lines connected to one boat. These wires can be nearly one hundred kilometers long. They hold thousands of sharp metal hooks to catch fish.
Long line fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. But long line fishing boats now might only catch one fish per hundred hooks.
The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests that whole populations can disappear almost completely from new fishing areas within ten to fifteen years.
Ransom Myers and Boris Worm of Dalhousie University in Nova Scotia led the study with the University of Kiel in Germany. Worm says the destruction could lead to a complete reorganization of ocean life systems. Meyers says the decreased numbers of large fish are not the only worry. He says even populations that are able to reproduce do not get the chance to live long enough to grow as big as their ancestors. He says not only are there fewer big fish, but also they are smaller than those of the past.
It’s the end of this program ,Thank you for your listening.
1.What’s the best title for the passage?
A. Big fish are disappearing B. Long—line fishing in Japan
C. The harm of industrial fishing D. Stop killing big fish
2.Which of the following DOESN’T show that the populations of big fish are smaller than before?
A. Fish can disappear almost completely from new fishing areas.
B. Now long—line fishing boats might catch one fish per hundred hooks.
C. Fish now don’t have the chance to grow big enough.
D. Scientists spent ten years studying the populations of large fish.
3.What can we learn from the passage?
A. The number of big fish started to drop greatly about fifty years ago.
B. The study was started by Boris Worm of Dalhousie alone.
C. There will be no big fish left in fifty years .
D. Japaneses people have stopped catching big fish.
高三英语阅读理解中等难度题
Scientists in Canada say big fish have almost disappeared from the world since the start of industrial(产业的) fishing in the 1950s. The scientists found the numbers of some kinds of large fish have dropped by ninety percent in the past fifty years.
The study took ten years. The researchers gathered records from fishing businesses and governments around the world. The magazine Nature published the findings.
The scientists say the common method called long line fishing ravages the populations of large fish. This method involves many fishing lines connected to one boat. These wires can be nearly one hundred kilometers long. They hold thousands of sharp metal hooks to catch fish.
Long line fishing is especially common in the Japanese fishing industry. Records showed that Japanese boats used to catch about ten fish for every one hundred hooks. But long line fishing boats now might only catch one fish per hundred hooks.
The scientists say industrial fishing can destroy groups of fish much faster than in the past. The study suggests that whole populations can disappear almost completely from new fishing areas within ten to fifteen years.
Ransom Myers and Boris Worm of Dalhousie University in Nova Scotia led the study with the University of Kiel in Germany. Worm says the destruction could lead to a complete reorganization of ocean life systems. Meyers says the decreased numbers of large fish are not the only worry. He says even populations that are able to reproduce do not get the chance to live long enough to grow as big as their ancestors. He says not only are there fewer big fish, but also they are smaller than those of the past.
It’s the end of this program ,Thank you for your listening.
1.What’s the best title for the passage?
A. Big fish are disappearing B. Long—line fishing in Japan
C. The harm of industrial fishing D. Stop killing big fish
2.Which of the following DOESN’T show that the populations of big fish are smaller than before?
A. Fish can disappear almost completely from new fishing areas.
B. Now long—line fishing boats might catch one fish per hundred hooks.
C. Fish now don’t have the chance to grow big enough.
D. Scientists spent ten years studying the populations of large fish.
3.What can we learn from the passage?
A. The number of big fish started to drop greatly about fifty years ago.
B. The study was started by Boris Worm of Dalhousie alone.
C. There will be no big fish left in fifty years .
D. Japaneses people have stopped catching big fish.
高三英语阅读理解中等难度题查看答案及解析
Scientists from the United States say they have found fish and other creatures living under key waters in Antarctica. They made the announcement after completing three months of research at the Ross Ice Shelf, the world’s largest floating ice sheet.
The researchers hoped to find clues to explain the force of the melting ice and its effect on sea level rise. Reed Scherer and Ross Powell are with Northern Illinois University in DeKalb, Illinois. They just finished up their research on our southernmost continent. Money for the project came from America’s National Science Foundation.
“We chose a study site where, in the first year ,We went into the subglacial (冰川下的)lake and tried to understand the environment in there, both ecologically and in terms of the ice dynamics about how the lake operates ,and how the sediment(沉淀物) underneath the ice sheet operates, as well, because it’s the water and the sediment underneath the ice that controls how fast the ice is flowing into the ocean” says Ross Powell, who led the investigation. The team included scientists ,engineers, machinery and other supplies across the ice from the main U.S. scientific base at Mc Murdo Station to the researcher’s camp .The camp was near a subglacial lake ,where an earlier study took place,
Ross Powell says the latest study may provide evidence that can help predict the effect of climate change on rising sea levels.
“What we have found is that these are very sensitive areas to the stability of how dynamic the ice is and how fast the ice may react to increases of melting both from the ocean and the atmosphere.”
Among the new instruments built for the project was a powerful hot water drill. The researchers used the drill to dig down some 740 meters. They collected water ,sediment and other material from the grounding zone.
Working around the clock before the deep hole refroze, they sent a video camera down to the 400-square-meter undersea area.
Reed Scherer says the video images they saw in the Command Center were a total surprise.
“It’s a very mobile environment. The bottom is changing constantly. And so the things that we saw were all very mobile organisms, things that swim and some things that crawl. And obviously they are getting enough nutrition that they can thrive, Some of the little crustacean-like creatures called amphipods that we saw swam quite quickly and were quite active.”
This is the farthest south that fish have ever been seen. How did the creatures get here? What do they feed on? And what effect will the retreating ice have on them?
Ross Powell says the ice and sediment cores taken from the grounding zone can offer clues.
“We know that the ice is melting there at the moment and so by opening up the cores once they get back, we hope to be able to understand what the ice was doing in the past ,relative to what it is doing now. And because it is melting so fast or seems to be melting fast at the moment, we anticipate that there will he some differences that we’ll see in the history of the ice sheet from the sediment cores, once we open them up .”But Ross Powell says the work raises more questions than it answers.
1.Scientists conducted the three-month research at the Ross Ice Shelf with the intention of .
A. predicting how climate change influences rising sea levels.
B. finding out whether there are life forms existing deep under Antarctic ice.
C. proving the speed of ice flowing into the ocean is controlled by water.
D. discovering an explanation of the effect the melting ice has on sea level rise.
2.What made the researchers surprised when they saw the video images?
A. Researchers saw fish in the farthest south for the first time.
B.A video camera was able to work well under deep icy waters.
C. Sediment cores present differences in the history of the ice sheet.
D. The drill should dig down 740 meters to collect things.
3.From sediment cores taken from the grounding zone, scientists will probably know .
A. what the ice will do in the near future
B. the ice in the grounding zone is melting at the moment
C. some differences rarely exist in the history of the ice sheet
D. something about the creatures under icy water in Antarctic.
4.What can be inferred from the passage?
A. Scientists will conduct a follow-up study on the frozen continent.
B. No creatures once appeared or lived in icy water in Antarctica.
C. America’s National Science Foundation is in complete charge of the research.
D. Researchers have found how the sediment underneath the ice sheet operates.
高三英语阅读理解中等难度题查看答案及解析
Scientists have recreated a 1985 study of birds in Peru that shows climate change is pushing them from their natural environment. Thirty years ago, researchers studied over 400 kinds of birds living on a mountainside in Peru. In 2017, researchers looked again at the bird populations. They found that almost all had moved to higher places in the mountain. Almost all had decreased in size. And, the scientists say at least eight bird groups that started at the higher elevations (高地) had died out completely.
The researchers say the birds might have moved up the mountain because of temperature changes. Or changes to food sources may have forced them to go higher. The findings were published in a science journal. The 1985 research has documented birds and other animals moving up in elevation (高地) in reaction to warming temperatures. Mark Urban, a biologist at a university, said this recent study was the first to prove that rising temperatures and moving to avoid them can lead to extinction.
In 2016, Fitzpatrick, director and a co-writer of the study passed his notes, photos and other records to Benjamin Freeman. Freeman has been researching tropical birds for more than 10 years. He set out in August and September of 2017 to copy Fitzpatrick’s study. His team used the same methods, searching the same places in the same time of year.
Freeman’s team wanted to see how things had changed for the bird groups since 1985. The average temperatures on the mountain had risen 0.42 degrees Celsius. His team placed 20 sound recording devices on the mountain to record the sounds of birds that might not easily be seen.
Freeman said that the birds moved an average of 98 meters further up the mountain. He believes that temperature is the main cause of the birds’ movement. Fitzpatrick noted that birds used to living in areas with little temperature change may be especially at risk because of climate change. He said, “We should expect that what’s happening on this mountain top is happening more generally in the Andes, and other tropical mountain ranges.”
1.How many kinds of birds lived in Peru 30 years ago?
A. At least eight bird groups. B. More than 400.
C. Over eight bird groups. D. Less than 400.
2.Why did the birds move up the mountain?
A. To avoid temperature changes.
B. To find more food sources.
C. To adapt to extreme temperature.
D. To react to the increase of other kinds of animals.
3.How did Freeman and his team record the sound of birds not easily being seen?
A. They had the temperature rise 0.42 degrees Celsius.
B. They moved an average of 98 meters further up the mountain.
C. They placed 20 sound recording devices on the mountain.
D. They kept on listening to the sound happening on this mountain top.
4.What is the main idea of the text?
A. Two teams used the same methods to do researches.
B. Scientists documented birds and other animals moving up in elevation.
C. Scientists have been researching tropical birds for more than 10 years.
D. Rising temperature made almost all birds in Peru become extinct.
高三英语阅读理解困难题查看答案及解析
Running on Empty
For almost a century, scientists have assumed, tiredness—or exhaustion—in athletes originates(起源于) in the muscles. Precise explanations have varied, but all have been based on the “Limitations Theory”. In other words, muscles tire because they hit a physical limit: they either run out of fuel or oxygen or they drown in harmful by-products(副产品).
In the past few years, however, Timothy Noakes from the University of Cape Town, South Africa, has examined this standard theory. Tiredness, he argues, is caused not by signals springing from overtaxed muscles, but is an emotional response which begins in the brain. The fundamental nature of his new theory is that the brain paces the muscles to keep them well back from the edge of exhaustion. When the brain decides it’s time to quit, it creates unbearable muscle tiredness. This “Central Governor” theory remains controversial, but it does explain many puzzling aspects of athletic performance.
A recent discovery that Noakes calls the “lactic acid paradox” made him start researching this area seriously. Lactic acid is a by-product of exercise, and the increase of it is often mentioned as a cause of tiredness. But when research subjects exercise in certain conditions created artificially, they become tired even though lactic acid levels remain low. Nor has the oxygen content of their blood fallen too low for them to keep going. Obviously, something else was making them tire before they hit either of these physiological limits.
Noakes conducted an experiment with seven cyclists. It has long been known that during exercise, the body never uses 100% of the available muscle fibres(纤维). The amount used varies, but in some tasks such as this cycling test the body calls on about 30%. His team found that as tiredness set in, the electrical activity in cyclist’s legs declined—even when they were making a great effort to cycle as fast as they could.
To Noakes, this was strong evidence that the old theory was wrong. “The cyclists may have felt completely exhausted,” he says, “but their bodies actually had considerable reserves that they could theoretically tap by using a greater amount of the resting fibres.” This, he believes, is the proof that the brain is regulating the pace of the workout to hold the cyclists well back from the point of extreme tiredness.
1.Which of the following is supported by “the Limitations Theory”?
A.Tiredness is caused by signals from brain.
B.Athletes feel tired when they use up all their energy.
C.The body uses 100% of the muscle fibres in exercise.
D.Athletes become tired though lactic acid levels remain low.
2.Noakes has found out that ___________.
A.muscle fibres control athletes’ movements
B.Lactic acid levels remain high in cycling test
C.mental processes control the symptoms of tiredness
D.different exercises use different amount of muscle fibres
3.It is likely that both theories accept that ___________.
A.lactic acid is produced in muscles during exercise
B.the oxygen content in blood may rise after sports
C.tiredness is a harmful by-product of exercise
D.the energy in human bodies can be balanced
4.What is Paragraph 3 mainly about?
A.The description of a new test.
B.The explanation of the theory.
C.The puzzling evidence of a study.
D.The whole process of the research.
高三英语阅读理解中等难度题查看答案及解析
Scientists say they have found high levels of small plastic particles(颗粒) in Arctic snow. A German-Swiss research team collected snow samples(样本)from the Arctic and other areas. They included northern Germany, the Bavarian and Swiss Alps, and the North Sea island of Heligoland.When the researchers examined the samples in a laboratory, they were surprised to find very high levels of microplastics.
Microplastics are very small pieces of plastic. These plastic particles are generally smaller than 5 millimeters in length. They come from the breakdown of man-made plastic products and industrial waste.
The study found the highest levels of microplastics came from the Bavarian Alps. One snow sample from the area had 154,000 microplastic particles per liter. Samples collected from the Arctic had much lower levels. However, even samples from the Arctic contained up to 14,000 particles per liter.
The study also attempted to explore how some of the material could have been carried in the atmosphere. A limited number of earlier studies did find microplastics in the air of some cities, including Paris, Tehran and Dongguan, China.
Bergmann Melanie co-wrote the report on the new study. She believes the new study clearly shows that “the majority of the microplastic in the snow comes from the air.” The new study suggests that much of the microplastic found in Europe and the Arctic comes from the atmosphere and snow.
While there is growing concern about the effect of microplastics on the environment, scientists are still studying their possible harmful effects on humans and animals. “I hope the new study will lead to more research on this issue. I think microscopic plastic particles should be included in worldwide observations of air pollution levels.We really need to know what effects microplastics have on humans, especially if inhaled with the air that we breathe.” Bergmann said.
1.Why did scientists collect samples from so many places in paragragh 1?
A.To make the research convincing.
B.To attract people to explore there.
C.To measure the length of microplastics .
D.To examine the samples easily in the lab.
2.What is the second paragraph mainly about?
A.The risks of microplastics.
B.The transport of microplastics.
C.The breakdown of plastic products.
D.The description of microplastics.
3.What did the research team find about microplastics?
A.Many people threw them away at the Alps.
B.They were delivered to remote areas through air.
C.They could be caught sight of in the air.
D.They had no great effect on the environment.
4.What can be inferred from what Bergmann said in the last paragraph?
A.Scientists are worried about the the influence of microplastics.
B.We have found a practical solution to the environment problem.
C.The effect of microplastics on human must be urgently researched.
D.There is no need to change observations of air pollution levels.
高三英语阅读理解中等难度题查看答案及解析
A team of scientists says that playing sounds underwater can get fish to return to areas with severely damaged coral reefs(珊瑚礁).In an experiment, they found fish returned after hearing recordings of the sounds like a healthy ocean reef. The research results were reported in Nature Communications.
The scientists placed underwater speakers in areas where coral had been dying in Australia’s northern Great Barrier Reef. They played the sounds over a period of about six weeks in 2017 and studied the results. The team reported that twice as many fish arrived in the areas where the sounds of healthy coral were played. The sounds also led to a 50 percent increase in the number of species present in the area, the researchers found. The researchers noted the importance of having many different kinds of fish return to the area. Different species of fish perform many activities that support the ocean environment and sea life.
Steve Simpson is a professor at the University of Exeter who helped lead the research. He explained, “Healthy coral reefs are remarkably noisy places. They contain the sounds of many kinds of shrimp, fish and other sea creatures. Young fish listen to these sounds when they are looking for a place to settle. Reefs become extremely quiet when they suffer destruction that is usually related to human-caused pollution. Coral damage can drive shrimp and fish away. But the experiment suggested that the use of underwater loudspeakers was an effective way to get young fish to come back.”
Mark Meekan is a fish biologist. He said that the return of the fish is the first step towards seeing major improvements in reef health. “Recovery is underpinned (巩固) by fish that clean the reef and create space for corals to regrow,” he said. University of Bristol professor, Andy Radford, said the underwater sounds are a promising way to fight coral reef damage at the local community level. But he noted that other threats need to be reduced as well. These include climate change, pollution and over fishing.
1.Why can underwater speakers make fish return?
A.Because the fish prefer music around their habitats.
B.Because they play sounds as a healthy reef does.
C.Because the fish know the places with them become better.
D.Because they can drive the natural enemies of fishes away.
2.What effect do different kinds of fish have on the ocean according to the text?
A.Keeping the ocean’s ecological balance. B.Removing the remarkable noises.
C.Preventing the pollution caused by human. D.Driving dangerous creatures away.
3.How does the author prove the significance of this new finding?
A.By quoting different authorities’ words.
B.By comparing the result with another study’s.
C.By offering many statistics.
D.By showing the detailed process of experiments.
4.In which section of a newspaper may this text appear?
A.Education. B.Entertainment.
C.Environment. D.Economy.
高三英语阅读理解中等难度题查看答案及解析
“Don't worry if you have problems!” It is easy to say until you are in the midst of a really big one.The only people who don't have troubles are gathered in little neighborhoods.Most communities have at least one.We call them cemeteries.If you're breathing, you have difficulties.It's the way of life.And believe it or not, most of your problems may actually be good for you! Let me explain.
Maybe you have heard the Great Barrier Reef, stretching some 1,800 miles from New Guinea to Australia.Tour guides regularly take visitors to view the reef.
On one tour, a traveler asked the guide an interesting question."I notice that the lagoon (泻湖) side of the reef looks pale and lifeless, while the ocean side is vibrant and colorful," the traveler observed.Why is this?
The guide gave an interesting answer, "The coral around the lagoon side is in still water, with no challenge for its survival.It dies early.The coral on the ocean side is constantly being tested by wind, waves and storms.It has to fight for its survival every day.As it is challenged and tested, it changes and adapts.It grows healthy.It grows strong.And it reproduces."
Then he added, “That's the way it is with every living organism.”
That's how it is with people.Challenged and tested, we come alive! Like coral pounded by the sea, we grow.Physical demands can cause us to grow stronger.Mental and emotional stress can produce tough-mindedness and resiliency.Spiritual testing can produce strength of character and faithfulness.So, you have problems? No problem! Just tell yourself, "There I grow again!"
Remember: A smooth sea never made a skilled mariner.
1.Who has no problems according to the passage?
A.The persons who are very famous.
B.The persons who have much money.
C.The persons who have been born.
D.The persons who are living in the cemeteries.
2.In the writer's opinion, ________.
A.problems bring us much trouble
B.problems have two sides, good or bad
C.we should try to stay away from any trouble
D.the fewer things we do, the less trouble we'll meet
3.The reason why lagoon side of the reef has no life is _______.
A.it hasn't got any sunlight
B.it has less energy than others
C.it never faces any challenge and tests
D.it has no work to do every day
4.After reading this passage, we should ________.
A.regard any problem as challenge
B.learn from the lagoon side
C.worry your problem
D.enter into cemeteries
高三英语阅读理解中等难度题查看答案及解析
“Don't worry if you have problems!” It is easy to say until you are in the midst of a really big one. The only people who don't have troubles are gathered in little neighborhoods. Most communities have at least one. We call them cemeteries. If you're breathing, you have difficulties. It's the way of life. And believe it or not, most of your problems may actually be good for you! Let me explain.
Maybe you have heard the Great Barrier Reef, stretching some 1,800 miles from New Guinea to Australia. Tour guides regularly take visitors to view the reef.
On one tour, a traveler asked the guide an interesting question. "I notice that the lagoon (泻湖) side of the reef looks pale and lifeless, while the ocean side is vibrant and colorful," the traveler observed. Why is this?
The guide gave an interesting answer, "The coral around the lagoon side is in still water, with no challenge for its survival. It dies early. The coral on the ocean side is constantly being tested by wind, waves and storms. It has to fight for its survival every day. As it is challenged and tested, it changes and adapts. It grows healthy. It grows strong. And it reproduces."
Then he added, “That's the way it is with every living organism.”
That's how it is with people. Challenged and tested, we come alive! Like coral pounded by the sea, we grow. Physical demands can cause us to grow stronger. Mental and emotional stress can produce tough-mindedness and resiliency. Spiritual testing can produce strength of character and faithfulness. So, you have problems? No problem! Just tell yourself, "There I grow again!"
Remember: A smooth sea never made a skilled mariner.
1.Who has no problems according to the passage?
A. The persons who are very famous.
B. The persons who have much money.
C. The persons who have been born.
D. The persons who are living in the cemeteries.
2. In the writer's opinion, ________.
A. problems bring us much trouble
B. problems have two sides, good or bad
C. we should try to stay away from any trouble
D. the fewer things we do, the less trouble we'll meet
3. The reason why lagoon side of the reef has no life is _______.
A. it hasn't got any sunlight
B. it has less energy than others
C. it never faces any challenge and tests
D. it has no work to do every day
4.After reading this passage, we should ________.
A. regard any problem as challenge
B. learn from the lagoon side
C. worry your problem
D. enter into cemeteries
高三英语阅读理解中等难度题查看答案及解析
“Don't worry if you have problems!” It is easy to say until you are in the midst of a really big one.The only people who don't have troubles are gathered in little neighborhoods.Most communities have at least one.We call them cemeteries.If you're breathing, you have difficulties.It's the way of life.And believe it or not, most of your problems may actually be good for you! Let me explain.
Maybe you have heard the Great Barrier Reef, stretching some 1,800 miles from New Guinea to Australia.Tour guides regularly take visitors to view the reef.
On one tour, a traveler asked the guide an interesting question."I notice that the lagoon (泻湖) side of the reef looks pale and lifeless, while the ocean side is vibrant and colorful," the traveler observed.Why is this?
The guide gave an interesting answer, "The coral around the lagoon side is in still water, with no challenge for its survival.It dies early.The coral on the ocean side is constantly being tested by wind, waves and storms.It has to fight for its survival every day.As it is challenged and tested, it changes and adapts.It grows healthy.It grows strong.And it reproduces."
Then he added, “That's the way it is with every living organism.”
That's how it is with people.Challenged and tested, we come alive! Like coral pounded by the sea, we grow.Physical demands can cause us to grow stronger.Mental and emotional stress can produce tough-mindedness and resiliency.Spiritual testing can produce strength of character and faithfulness.So, you have problems? No problem! Just tell yourself, "There I grow again!"
Remember: A smooth sea never made a skilled mariner.
1.Who has no problems according to the passage?
A.The persons who are very famous.
B.The persons who have much money.
C.The persons who have been born.
D.The persons who are living in the cemeteries.
2.In the writer's opinion, ________.
A.problems bring us much trouble
B.problems have two sides, good or bad
C.we should try to stay away from any trouble
D.the fewer things we do, the less trouble we'll meet
3.The reason why lagoon side of the reef has no life is _______.
A.it hasn't got any sunlight
B.it has less energy than others
C.it never faces any challenge and tests
D.it has no work to do every day
4.After reading this passage, we should ________.
A.regard any problem as challenge
B.learn from the lagoon side
C.worry your problem
D.enter into cemeteries
高三英语阅读理解中等难度题查看答案及解析
“Don't worry if you have problems!” It is easy to say until you are in the midst of a really big one. The only people who don't have troubles are gathered in little neighborhoods. Most communities have at least one. We call them cemeteries. If you're breathing, you have difficulties. It's the way of life. And believe it or not, most of your problems may actually be good for you! Let me explain.
Maybe you have heard the Great Barrier Reef, stretching some 1,800 miles from New Guinea to Australia. Tour guides regularly take visitors to view the reef.
On one tour, a traveler asked the guide an interesting question. "I notice that the lagoon (泻湖) side of the reef looks pale and lifeless, while the ocean side is vibrant and colorful," the traveler observed. Why is this?
The guide gave an interesting answer, "The coral around the lagoon side is in still water, with no challenge for its survival. It dies early. The coral on the ocean side is constantly being tested by wind, waves and storms. It has to fight for its survival every day. As it is challenged and tested, it changes and adapts. It grows healthy. It grows strong. And it reproduces."
Then he added, “That's the way it is with every living organism.”
That's how it is with people. Challenged and tested, we come alive! Like coral pounded by the sea, we grow. Physical demands can cause us to grow stronger. Mental and emotional stress can produce tough-mindedness and resiliency. Spiritual testing can produce strength of character and faithfulness. So, you have problems? No problem! Just tell yourself, "There I grow again!"
Remember: A smooth sea never made a skilled mariner.
1.Who has no problems according to the passage?
A. The persons who are very famous.
B. The persons who have much money.
C. The persons who have been born.
D. The persons who are living in the cemeteries.
2.In the writer's opinion, ________.
A. problems bring us much trouble
B. problems have two sides, good or bad
C. we should try to stay away from any trouble
D. the fewer things we do, the less trouble we'll meet
3.The reason why lagoon side of the reef has no life is _______.
A. it hasn't got any sunlight
B. it has less energy than others
C. it never faces any challenge and tests
D. it has no work to do every day
4.After reading this passage, we should ________.
A. regard any problem as challenge
B. learn from the lagoon side
C. worry your problem
D. enter into cemeteries
高三英语阅读理解中等难度题查看答案及解析