单选题In fisheries in general, when a large harvest is taken one year, there will be fewer fish available to be harvested in the following year, leading to decreasing yields of most fish species over time. The Maine lobster is an anomaly, however. Even thoug

题目
单选题
In fisheries in general, when a large harvest is taken one year, there will be fewer fish available to be harvested in the following year, leading to decreasing yields of most fish species over time. The Maine lobster is an anomaly, however. Even though the vast number of lobster traps covering the New England coast pull in more lobsters every year, the number of lobsters in the water has shown no signs of decreasing.　 Which of the following, if true, most helps to explain the apparent anomaly concerning the number of Maine lobsters?
A

The decline of other fish species in the region has deprived the lobster of its natural food source of scavenged fish.

B

The bait in lobster traps provides abundant food for young lobsters, which are still small enough to swith out of the traps, leading to much higher survival rates among young lobsters than would be expected in nature.

C

As global warming heats the waters of the Atlantic coastline, the Maine lobster has extended its northern range to well past Nova Scotia.

D

The ever, increasing demand for lobsters in seafood restaurants and steakhouses across the country has driven a corresponding increase in the supply of the product.

E

The increased lobster harvest has resulted in many juvenile lobsters but very few breeding- age lobsters, which could result in a crash in lobster numbers in the near future.

相似考题

1.阅读下面短文,根据短文内容,在短文后81－85小题中句子空白处填入适当的词语或句子。We know that m阅读下面短文，根据短文内容，在短文后８１－８５小题中句子空白处填入适当的词语或句子。We know that many animals do not stay in one place. Birds, fish and other animals move from one place to another place at a certain time. They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded.When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration is probably the migration of fish, which is called “salmon”（鲑鱼）. This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea.Recently, scientists have studied the migration of a kind of lobster(龙虾). Every year, when the season of the bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where the go. So, sometimes we know why humans and animals move from one place to another place, but at other times we don’t. Maybe living things just like to travel.81. The reason for most of the animals to move is _____________________.

2._________the new pop singer built her first album piece by piece.A． Over a year and a halfB． Over half and a yearC． Over one and a half yearD． Over year and half

3.Text 3When 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 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 would have been more saturated with fish. Some individuals would therefore not have been caught, since no baited hooks 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.Dr. Myers and Dr. Worm argue that their work gives a correct baseline, which future management efforts must take into account. They believe the data support an idea current among marine biologists, that of the “shifting baseline.” The notion is that people have failed to detect the massive changes which have happened in the ocean because they have been looking back only a relatively short time into the past. That matters because theory suggests that the maximum sustainable yield that can be cropped from a fishery comes when the biomass of a target species is about 50% of its original levels. Most fisheries are well below that, which is a bad way to do business.31. The extinction of large prehistoric animals is noted to suggest that ________.[A] large animal were vulnerable to the changing environment[B] small species survived as large animals disappeared[C] large sea animals may face the same threat today[D] slow-growing fish outlive fast-growing ones

4.The experiment showed that the smaller fish .A. fought over a feast B. went on diet willinglyC. preferred some extra food D. challenged the boss fish

参考答案和解析
正确答案： E
解析：
B项中提到捕食龙虾使得年幼的龙虾的存活率增高，给题目中提到的龙虾数量的异常提供了一个可能的解释，故本题选B项。
更多“单选题In fisheries in general, when a large harvest is taken one year, there will be fewer fish available to be harvested in the following year, leading to decreasing yields of most fish species over time. The Maine lobster is an anomaly, however. Even thoug”相关问题

  • 第1题：

    C

    GUATEMALA CITY （Reuters） – A fish that lives in mangrove swamps（红树沼泽）across the Americas can live out of water for months at a time, similar to how animals adapted（适应）to land millions of years ago, a new study shows.

    The Magrove Rivulus, a type of small killifish, lives in small pools of water in a certain type of empty nut or even old beer cans in the mangrove swamps of Belize, the United States and Brazil. When their living place dries up, they live on the land in logs（圆木），said Scott Taylor, a researcher at the Brevard Endangered Lands Program in Florida.

    The fish, whose scientific name is Rivulus marmoratus, can grow as large as three inches. They group together in logs and breathe air through their skin until they can find water again.

    The new scientific discovery came after a trip to Belize.

    “We kicked over a log and the fish just came crowding out,” Taylor told Reuters in neighboring Guatgemala by telephone. He said he will make his study on the fish known to the public in an American magazine early next year.

    In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.

    Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at time, while lungfish found in Australia, Africa and South America can live out of water, but only in an inactive state. But no other known fish can be out of water as long as the Mangrove Rivulus and remain active, according to Patricia Wright, a biologist at Canada’s University of Guelph.

    Further studies of the fish may tell how animals changed over time.

    “These animals live in conditions similar to those that existed millions of years ago, when animals began making the transition（过渡）from water onto land,” Wright said.

    49. The Mangrove Rivulus is a type of fish that _______.

    A. likes eating nuts

    B. prefers living in dry places

    C. is the longest living fish on earth

    D. can stay alive for two months out of water


    正确答案：D

  • 第2题：

    Large fish usually ____ small fish.

    A：gather

    B：take on

    C：feed on

    D：organize


    正确答案：C

  • 第3题：

    Millions of pounds’ ____ of fish is caught every year around the coasts of Britain.

    A: worth

    B: worthy

    C: worthwhile

    D: worthless


    参考答案：A

  • 第4题：

    Every year gray whales migrate from the Bering Sea in Alaska to the Baja Peninsula in Mexico.
    Eleven gray whales have died in the San Francisco Bay in the last three weeks．No one knows why the whales are dying.
    Last year 270 whales died along the whales'migration route．Many people think starvation is the cause．This year the dead whales seem to have more blubber(fat)on them.
    Twenty years ago,the gray whale was listed as an endangered species.
    Some scientists think that the larger number of whales makes it hard to find enough food．More whales create more pressure on the food supply,a supply that some scientists say may have dwindled as a result of the warm waters of El Nino.
    Most of the whales have been dead for many days before they are found and studied．This makes it hard to find the reason for death.
    65 whales have been seen in the San Francisco Bay Area this year compared to 17 last year．The whales could be dying from many diseases,but it may be over-population．

    Which of the following is NOT a possible reason for whales dying?

    A.Pneumoni
    B.Brain infectio
    C.Over-populatio
    D.Over-eatin

    答案：D
    解析：
    参见第五段。作者特别提到由于鲸鱼的数量巨大，它们很可能没有足够的食物。因此，过量饮食是不可能的。由于人们还没有真正弄清楚鲸鱼的死因，那么，任何其他的原因都是可能的。

  • 第5题：

    Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
    The most suitable title for the text is_____

    A.Wild Fish:Demand Decides Price
    B.The Rising Price of Rare Wild Fish
    C.Ffumed Fish:Making Improvements
    D.The Prices of Fishes:Rising Differently

    答案：D
    解析：
    主旨题。文章首段引出话题：全球鱼类价格上涨。第二段指出：并非所有鱼类都涨幅相同，并引出野生鱼和养殖鱼这两个种类．接下来几段分别讨论野生鱼和养殖鱼上涨幅度不同的原因。选项[A]Wild Fish：Demand Decides Price“野生鱼：需求决定价格”；该项突出讨论野生鱼．全文只有第三、四两段突出讨论野生鱼，该项属于片面选项，故排除。[B]The Rising Pnce of Rare Wild Fish“稀有野生鱼价格上涨”；该项同样突出野生鱼，与[A]-样为片面选项。[C]Farmed Fish：Making Improvements“养殖鱼：不断进步”；该项突出养殖鱼，而文章只有第五、六段重点讨论养殖鱼，该项同属于片面选项，故排除。[D]The Price of Fishes：Rising Differently“鱼类价格：上涨幅度不同”；该项符合文章主旨，尤其risinS differently强调了不同鱼类涨幅不同，故该项为答案。

  • 第6题：

    Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
    The production of farmed fish is growing due to the following reasons except_____

    A.disease control
    B.lower labour cost
    C.energy conservation
    D.reduction of fish feed

    答案：B
    解析：
    细节题。根据the production of fanned fish，growing等词定位到最后一段。题目问“养殖鱼产量增加的原因”，对应句子为最后一段首句：As a result of all these improvements，the global production of farmed fish,measured in tonnes,now exceeds the production of beef.由该句可知养殖鱼产量增加是因为these improvements“这些进步”，而these improvements指代的内容来自上一段，即答案句来自第五段。该段讲到三个因素使养殖鱼产量增加，没有提到的即符合题目要求。第一个因素来自第五段第二句：Fish farms have found crafty ways to use lower quantities of fish meal as feed.其中lower quantities of fish meal as feed“减少鱼饲料”=[D]reduction of fish feed“鱼饲料减少”；故排除[D]。第二个因素来自倒数第二句：Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy prices.其中energy-efficient“节能”=[C]energy conservation“节约能源”；故排除[c]。第三个因素来自最后一句：And they have leamed how to handle diseases better,reducing the quantity of fish Lhat ends up being unsellable.其中handle diseases better“更好应对疾病”=[A]disease control“疾病控制”；故排除[A]。剩余选项[B]lower labour cost“低劳动力成本”：该项属于无中生有，符合题目要求，故本题选择[B]。

  • 第7题：

    —The round bowl over there is a bit small，isn‘t it
    —_______.

    A.So are the fish
    B.So the fish are
    C.Neither the fish
    D.Neither are the fish

    答案：A
    解析：

  • 第8题：


    Which of the following changes might be expected of London by Dickens？( )

    A.Here would be less and less polluted air over the sky of London
    B.The River Thames might accommodate the fish again
    C.London might develop into an even bigger city
    D.Londoners would be rid of poverty

    答案：C
    解析：

  • 第9题：

    单选题
    Advertisement: The most flavorful olives in the world are kalamata olives. The more kalamata olives used to make a bottle of olive oil, the more flavorful the oil, and no company buys more kalamata olives than Zorba’s Olive Oil. Therefore, when you buy Zorba’s Olive Oil, you’re buying the most flavorful olive oil available today.　 The reasoning presented in the advertisement is flawed because it overlooks the possibility that:
    A

    Not all of Zorba’s competitors use kalamata olives in their oil.

    B

    Zorba’s sells more olive oil than any other company.

    C

    The most flavorful olive oil is not necessarily the best olive oil.

    D

    Because of bulk discounts, Zorba’s pays less per kilogram of kalamata olives than does its competitors.

    E

    The number of kalamata olives harvested every year is far less than the number of Spanish olives harvested every year.


    正确答案： B
    解析：
    推理过程中只强调Zorba公司购买卡拉马塔橄榄油的总量多，但是不能确定其每瓶油中橄榄油的量，故本题应选B项。

  • 第10题：

    单选题
    In fisheries in general, when a large harvest is taken one year, there will be fewer fish available to be harvested in the following year, leading to decreasing yields of most fish species over time. The Maine lobster is an anomaly, however. Even though the vast number of lobster traps covering the New England coast pull in more lobsters every year, the number of lobsters in the water has shown no signs of decreasing.Which of the following, if true, most helps to explain the apparent anomaly concerning the number of Maine lobsters?
    A

    The decline of other fish species in the region has deprived the lobster of its natural food source of scavenged fish.

    B

    The bait in lobster traps provides abundant food for young lobsters, which are still small enough to swith out of the traps, leading to much higher survival rates among young lobsters than would be expected in nature.

    C

    As global warming heats the waters of the Atlantic coastline, the Maine lobster has extended its northern range to well past Nova Scotia.

    D

    The ever increasing demand for lobsters in seafood restaurants and steakhouses across the country has driven a corresponding increase in the supply of the product.

    E

    The increased lobster harvest has resulted in many iuvenile lobsters but very few breeding- age lobsters, which could result in a crash in lobster numbers in the near future.


    正确答案： A
    解析：
    B项中提到捕食龙虾使得年幼的龙虾的存活率增高，给题目中提到的龙虾数量的异常提供了一个可能的解释，故本题选B项。

  • 第11题：

    单选题
    Because of the good harvest, India had a large（）of wheat that year.
    A

    donation

    B

    supplement

    C

    barn

    D

    surplus


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    Although many people would not believe it, the mosquito is actually the most dangerous animal in Africa. While the bite of the black mamba is invariably lethal when untreated, this dreaded snake kills only a few dozen people per year. Hippopotami, with their immense strength and foul dispositions, kill hundreds of people per year in rivers and lakes, but the mosquito is still more dangerous. Mosquitoes bite hundreds of millions of people in Africa every year, and they infect over a million each year with malaria, a disease that is often fatal.　 Which of the following questions would be most useful in evaluating the claim made above regarding the mosquito?
    A

    Could a person survive an attack by a black mamba if that person received prompt medical attention?

    B

    What criteria are used to determine which animal is the “most dangerous” animal?

    C

    Could the incidence of mosquito bites be decreased through the judicious use of pesticides and insect repellent?

    D

    Does malaria kill more people per year in Africa than tuberculosis?

    E

    How does the percentage of people who survive hippopotamus attacks in Africa each year compare with the percentage of people who survive mosquito bites?


    正确答案： C
    解析：
    文段中对于非洲蚊子的结论是：“the mosquito is actually the most dangerous animal in Africa.”，之后作者比较了蚊子和其他生物的致死率的数据，故B问题能更好的帮助我们估计这一结论，故本题选B。

  • 第13题：

    Why is it a problem if all the smaller fish species die?

    A. It's not healthy for the environment.

    B. People only like to catch big fish.

    C. There are too many small fish.

    D. The smaller fish can get lost in the lake.


    正确答案：A
    55．第一段最后一句。说明其他物种的消失会破坏环境。选项 A是正确的。

  • 第14题：

    which of the following is not one of the major exports of new zealand?

    A. Wool.

    B. Oil.

    C. Dairy products. .

    D. Fish.


    参考答案：B

  • 第15题：

    Fish is______and expensive at this time of the year in this area.

    A．in large measure

    B．to the minimum

    C．in short supply

    D．to the maximum


    正确答案：C
    解析：句意：在这个地区，每年的这个时候鱼都很短缺而且贵。本题考查句意的辨析。in large measure在很大的程度上；to the minimum最低限度；to the maximum最高限度；in short supply短缺。

  • 第16题：

    Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
    Tuna and salmon are mentioned to show that______

    A.salmon is not as expensive as tuna
    B.tuna is more popular among consumers
    C.wild fish is more precious than farmed fish
    D.the prices of fish are in fact decided by FAO

    答案：C
    解析：
    例证题。根据tuna and salmon定位到第二段第四句。答案句来自下一句：Overall．the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.文章举金枪鱼和三文鱼的例子，是为了说明野生鱼的价格涨幅大，而养殖鱼的价格相对涨幅小，即野生鱼比养殖鱼更珍贵，选项[C]wild fish is more precious than farmed fish“野生鱼比养殖鱼更珍贵”为答案。选项[A]salmon is not as expensive as tuna“三文鱼不如金枪鱼贵”“B]tuna is more popular among consumers“金枪鱼更受消费者欢迎”；这两项围绕salmon和tuna讨论，明显是表面选项，故可以排除。选项[D】the prices of fish are in fact decided by FAO“鱼类价格实际上由联合国粮食与农业组织决定”；该项表述纯属无中生有。综上，本题选择[C]。

  • 第17题：

    Text 3 It is a good time to be a fisherman.The global fish-price index of the UN's Food and Agricultural Organization（FAO）hit a record high in May.Changing consumer diets,particularly in China,explain much of the sustained upward movement.High oil prices,which increase the cost of fishing and transportation,also add to the price of putting fish on Lhe table.Not all fish are creaLed equal,however.There are two types of fish production:"capture"（or wild）and"aquaculture"（or farmed）.And they seem to be on different tracks.Fish such as tuna,the majority of which is cau~;ht wild,saw much bigger price increases than salmon,which is easier to farm.Overall,the FAO's price index for wild fish nearly doubled between 1990 and 2012,whereas the one for farmed fish rose by only a fifth.What explains this big difference?The amount of wild fish captured globally has barely changed in the past two decades.The ceiling,of about 90m tonnes a year,seems to have been reached at the end of the 1980s.Overfishing is one reason,as is the limited room for produclivity growth,particularly if consumers want high quality.Patrice Guillotreau of the University of Nantes tells the story of a fleet in France that decided to trawl,rather than line-catch,its tuna.It braughi more back to shore,but the fish were damaged.It could not be sold as high-value fillets and was only good for canning.The old ways of catching fish are still best if you want the highest profits,says Mr CuiUotreau.In contrast,the farmed-fish industry continues to make productivity improvements.Fish farms have found crafty ways to use lower quantities of fish meal as feed.In the early days of aquaculture,it could take up to ten pounds of wild fish to produce one pound of salmon.Now the number is down to five.That may still be an inefficient use of protein,but the ratio is set to improve further.Fish farms have also become more energy-efficient,meaning that they are less affected by higher energy pnces.And they have learned how to handle diseases beUer,reducing the quanlity of fish that ends up being unsellable.As a resuli of all these improvements,the global production of farmed fish,measured in tonnes,now exceeds the producUon of beef.Output is likely to continue growing:the FAO estimates thal by 2020 it will reach six times its I990 level.
    The global fish price is growing because of_____

    A.the shonage of fishermen
    B.ever-increasing oil prices
    C.the change of Chinese diets
    D.high market demand and cost

    答案：D
    解析：
    细节题。根据题干the global fish price定位到首段第二句，其中hit a record high=growing。答案句来自后两句，关键词分别是changing consumer diets“消费者饮食习惯改变”和high oil prices，which increase the cost of fishing and transportation“高昂的油价抬高了捕捞和运输成本”。总结起来就是两个原因使鱼价上涨：一是消费者饮食习惯改变，即市场需求高；二是成本高。选项[A]the shortage of fishennen“渔夫紧缺”；该项对应首句，与本题答案无关。[Bl ever-increasing oil prices“油价不断上涨”；对应最后一句，属于鱼价上涨的原因之一，但是片面不完整，故排除；[C]the change of Chinese diets“中国人饮食习惯的改变”；该项也属于原因之一，与[B]一样属于片面选项。[D]high market demand and cost“高市场需求和高成本”；该项符合答案要求，故本题选择[D]。

  • 第18题：

    资料：There's a good chance that spicy crunchy tuna roll you ordered for lunch doesn't actually contain any tuna at all.
    That's because 74% of fish sold at sushi venues in the US is mislabeled and often completely different than what's on the menu, according to a 2013 survey from the ocean conservation group Oceana.
    But new technology could help make the seafood business a bit more transparent. Google is teaming up with Oceana and the aerial and satellite imaging nonprofit SkyTruth to launch Global Fishing Watch this fall, the New York Times reports. The initiative will track and analyze fishing boat practices using satellite technology and, ideally, help ensure that fewer fake or mislabeled fish are swapped in along the way.
    Seafood providers are also investing in technology to reduce fraud. Boston seafood distributor Red's Best, for example, has increased transparency by selling fish with labels that buyers can scan with their smartphones to access a web page that provides details about the individual fish, including where the fish came from, the New York Times reports.
    Even if a restaurant serves some real, correctly labeled fish, 95% of the 118 sushi restaurants surveyed by Oceana in cities including New York, Chicago, and Los Angeles had at least one faked sushi item on the menu.
    Currently, the biggest culprits for fake sushi are snapper （92% misleadingly labeled） and tuna （71%）. White tuna is often swapped for escolar, which is sometimes called the "Ex-Lax Fish, " according to Inside Edition, because it can cause intestinal problems.
    Roughly 75% of fish labeled snapper isn't even from the snapper family. Because of the predominance of fraud in the supply chain, New York sushi restaurant Sushi Nakazawa refuses to serve red snapper because the risk of fake fish is too high.

    What can we infer from this passage?（ ）

    A.Many sushi restaurants refuse to serve some fish because of the risk of fake fish.
    B.People have access to track the origins of fish sold in sushi shops.
    C.Most fish sold in sushi stores is mislabeled but new tech can help to fix the problem.
    D.Citizens in the US no longer trust the fish sold in sushi venues.

    答案：C
    解析：
    本题考查的是推理判断。
    【关键词】infer from the passage
    【主题句】第2、3自然段That's because 74% of fish sold at sushi venues in the US is mislabeled and often completely different than what's on the menu, according to a 2013 survey from the ocean conservation group Oceana.
    But new technology could help make the seafood business a bit more transparent. 根据海洋保护组织Oceana 2013年的一项调查，在美国寿司店出售的鱼中，74%的鱼标签有误，通常与菜单上的完全不同。但新技术可能有助于提高海产品行业的透明度。
    【解析】本题的问题是“从文章中，我们可以推断出什么？”A选项“许多寿司店拒绝供应一些鱼是因为假鱼的风险。”；B选项“人们可以追踪寿司店里出售的鱼的来源。”；C选项“寿司店里出售的大多数鱼都贴错了标签，但新技术可以帮助解决这个问题。”；D选项“美国公民不再相信寿司店出售的鱼。”

  • 第19题：


    Which of the following changes might be expected of London by Dickens？( )

    A.Here would be less and less polluted air over the sky of London.
    B.The River Thames might accommodate the fish again.
    C.London might develop into an even bigger city.
    D.Londoners would be rid of poverty.

    答案：C
    解析：

  • 第20题：

    单选题
    Which of the following questions is answered according to the information given in the passage?
    A

    What is the toxin used by the fish killer?

    B

    Who first discovered the organism?

    C

    How does the fish killer paralyze fish?

    D

    How many fishes can the organism kill each day?


    正确答案： C
    解析：
    是非题。选项C为答案第三段第二至四句描述了the fish killer如何杀死鱼类的过程。首先向水中、空气中sends neurotoxins（释放神经毒素）来麻痹鱼类的神经系统，从而使得鱼类游到水面来呼吸。最终当鱼类窒息而死时，然后它就attaches itself to the fish and begins sucking away at its flesh（附着在鱼身上并吸食其肉）。因此选C。

  • 第21题：

    单选题
    Which one of the following most seriously undermines the conclusion of this argument?
    A

    The increasing amount of recycled material made available each year is equal to one-tenth of the increasing amount of natural material consumed annually.

    B

    Recent studies have shown that the number of endangered animals throughout the world fluctuates sharply and is chiefly determined by changes in meteorological conditions.

    C

    The logging industry contributes huge sums of money to political campaigns instates where it has a financial interest.

    D

    The techniques that make recycling possible are constantly improved so that more is reclaimed for lower costs each year.

    E

    Political contributions by the recycling industry are now greater than those of either the logging or animal protection interests.


    正确答案： A
    解析：
    文段的主要意思是：随着科技的发展，越来越多的垃圾和废物得以循环开发和重新利用，更多副产品得以创造出来，因此那些认为自然资源会枯竭的说法已经不是现实，而且禁止进入濒危动物自然保护区的做法也已经没有必要；题目要求选出会削弱文段论点的选项，即与文意相悖的选项，分析可知，A项指出人们每年回收利用的自然资源和材料只是消耗的十分之一，说明大部分资源没有得以有效利用，与文章立意不符，符合要求；B、C两项的内容与文章无关；D、E两项均与文意相符，不符合要求。因此，正确答案为A项。

  • 第22题：

    单选题
    Which of the following statements is NOT true according to the passage?
    A

    Over 30 oil workers have been kidnapped this year in the Niger Delta region.

    B

    A group calling itself the Movement for the Niger Delta People has claimed responsibility for the current reported kidnapping.

    C

    The last kidnapping occurred last week when a German oil worker was taken away.

    D

    Nigeria produces the most crude oil in Africa.


    正确答案： D
    解析：
    事实细节的找寻和判断。录音中提到“上周经过伪装的武装分子绑架了一名德国石油工人作为人质”，紧接着便指出“A group calling itself the Movement for the Niger Delta People has claimed responsibility for that kidnapping”，其中该句的that kidnapping指的就是上周对一名德国石油工人的绑架事件。由此可知，该组织并非是此次绑架了15人的实施者。因此选项B表述错误。
    【录音原文】
    　　Unidentified kidnappers snatched two Norwegian and two Ukrainian oil workers from a supply ship provisioning oil rigs in Nigeria’s petroleum-rich waters, officials said Wednesday. They were taken hostage late Tuesday from the vessel owned by a Norwegian shipping firm, Trico Supply, company spokesman Bjorn Endresen said in Norway.
    　　Nigeria confirmed the latest violence against the oil industry in Africa’s petroleum giant and said negotiators had been sent to the restive Niger Delta region where most of the crude is pumped.
    　　Endresen said there were 11 other crew members aboard the ship at the time of the kidnapping, but did not give further details. He rejected initial Norwegian media reports that a Briton was among those kidnapped. Norwegian newspaper VG also reported on its Website that the kidnappers were demanding a ransom.
    　　Foreign Ministry spokesman Frode Overland Andersen said he could not confirm the ransom demand, but said the Norwegian Embassy in Abuja was working with local authorities to get more details on the abductions.
    　　Last week, militants wearing camouflage uniforms took hostage a German oil industry worker, spiriting him away on a boat into Nigeria’s troubled oil-rich delta region. A group calling itself the Movement for the Niger Delta People has claimed responsibility for that kidnapping, but police said the group was unknown.
    　　Militants have kidnapped oil workers to bargain for a greater share of the wealth from Africa’s largest crude producer. More than 30 have been taken this year, three from the oil-producing hub of Port Harcourt. The militants argue residents remain deeply impoverished, benefiting little from oil wealth while government officials and oil companies grow rich.

  • 第23题：

    单选题
    Which of the following statements is true?
    A

    Scientists have solved the mystery about the fish killer.

    B

    More studies need to be made about the fish killer.

    C

    It is proved that the algae are reducing fish populations.

    D

    Humans have already been affected by the toxin.


    正确答案： C
    解析：
    推断题。从第五段提到的“To understand the killer algae further, scientists must…and determine….They also need to know….”，可知要对这种微生物有进一步的了解，还有更多的研究工作要做。因此选B。

  • 第24题：

    单选题
    Which of the following statements is not mentioned as serious consequences of coral loss?
    A

    A reduction in tourism.

    B

    Increased coastal damage from hurricanes.

    C

    The extinction of the estimated 1 million species of fish.

    D

    The collapse of reef fisheries.


    正确答案： C
    解析：
    录音中提到的珊瑚损失（coral loss）的严重后果包括“the collapse of reef fisheries, a reduction in tourism and increased coastal damage from hurricanes”，对应选项A、B和D的内容，因此选C。
    【录音原文】
    Coral loss can have serious consequences, including the collapse of reef fisheries, a reduction in tourism and increased coastal damage from hurricanes. Coral decline also threatens the estimated 1 million species of fish, invertebrates and algae found in and around the world’s reefs. Several National Academies reports examine the environmental role of coral reefs and suggest ways to protect these and other marine resources.

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