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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
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更多 “ Fish is______and expensive at this time of the year in this area.A．in large measureB．to the minimumC．in short supplyD．to the maximum ” 相关考题
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The like to take a vacation ().
A.one time the yearB.one time in a yearC.once a yearD.once in a year
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We can infer that the plumbing ______ at that time.A. cost littleB. was more expensive than a water systemC. was too expensive for every family to affordD. was not necessary
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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
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CGUATEMALA 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 nutsB. prefers living in dry placesC. is the longest living fish on earthD. can stay alive for two months out of water
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The country has ______people and ______money ______spent on tobacco every year.A. a large quantity of, a number of, areB. plenty of, a great deal, areC. a great deal of, plenty of, isD. a large number of, a large amount of, is
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Passage FiveThe Northern Pike is a very bad fish. It is a big, hungry fish, and swallows little fish such as trout and perch. Many Northern Pikes live in Lake Davis. They are killing all the smaller fish in the lake. The Northern Pike are a serious threat to the lake because they eat all the smaller fish. Soon, all other species of fish in the lake will be killed off. This is not healthy for the environment.Experts are afraid that the Northern Pike will swim out of Lake Davis through many smaller rivers that feed into the lake. They could spread all over the country and damage many other water environments. If that happens, it would be too late to stop the Northern Pike.For ten years, officials have been trying to remove the Northern Pike from Lake Davis. They haw. tried using nets, explosives and poisons. However, the Northern Pike population is still doing well in Lake Davis. Many people do not like the idea of using poison to kill the fish. They worry that the poi- sons are bad for humans who use the water. No trace of the poisons has ever been found in local wells, however.Scientists are going to try the poison again. This time, they will drain the lake before they add the poison to the water. A public hearing will be held to talk about the problem.52. Why are some people against the use of poisons to kill Northern Pike?A. Fishermen will be poisoned too.B. The poisons are expensive.C. They think that wells will be polluted.D. The lake will become unsafe.
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Millions of pounds’ ____ of fish is caught every year around the coasts of Britain.A: worthB: worthyC: worthwhileD: worthless
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The more often a fish is nearly caught, _______ it will be to interest it next time.
A.less difficultB.the more difficultC.the difficultD.more difficult
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Passage FiveOn the fourth Thursday of November, every year, Americans celebrate Thanksgiving Day. The day is a national holiday which is set aside each year as a time to give thanks to God for our blessings (祝福).Legend has it that the first English colonists (殖民者) in Massachusetts (马萨诸塞州) started the custom. According to the story, the Pilgrims~ first winter in the New World was difficult. They had arrived too late to grow many crops, and without fresh food, half of the colonists died from disease. The following spring the Indians taught them how to grow corn. In the autumn of 1621, bountiful crops of corn, beans and pumpkins were harvested. The colonists had much to be thankful for, so a feast was planned. They invited their Indian friends to join them in a large feast to share in the bounties (慷慨) of the land. This is the first Thanksgiving.The traditional foods of the big Thanksgiving Day meal include roast turkey, cranberries, sweet potatoes, pumpkin pie, and Indian bread puddings.Since the day is set aside for giving thanks, it has also become a traditional family day. Large dinners with many relatives are common throughout America on this special day.51. When was the Thanksgiving Day tradition begun?A. In the 17(上标)th century.B. On Thursday.C. Last November.D. In the 16(上标)th eentury.
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The migratory birds use the same nests year after year,（ ）new material each time.A.and will add
B.to add
C.which are added
D.adding
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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
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共用题干
What is Chinese New Year?In many parts of Asia,nations follow the lunar calendar rather than the Gregorian calendar used by the rest of the world.______(46)Many nations including Vietnam and Korea celebrate the lunar New Year with festivals and special foods.The Chinese,however,have turned the celebration into an art form:a 15 day festival called the Spring Festival in China,although it is known to the rest of the world as Chinese New Year.______(47)which is considered to be a particularly auspicious day.Children are given hong bao,lucky red envelopes full of money,and households exchange visits and gifts. Most celebrants at Chinese New Year wear red,which is a lucky color,and also refrain from reflecting on the past year and uttering unlucky words,as it is believed that the first day of the new year will determine your fortune in the months to come.Chinese New Year continues with 15 days of celebration and auspicious days,including a day to welcome the god of wealth,a day to celebrate farming and produce,and days to celebrate friends and family. Friendships and family relationships are a very important part of Chinese New Year,______(48)Numerous lucky foods are served throughout the Chinese New Year festival,and after all that rich dining,the 13th day of the festival is set aside for eating rice and bitter greens to cleanse the palate. on the 15th day,the Chinese New Year celebration culminates with the Lantern Festival, which is traditionally held at night. During the Lantern Festival,hundreds of citizens flood the street with lanterns representing wealth,animals,historical figures,plants,and a variety of other things.______(49)The Lantern Festival ends with a burst of fireworks to celebrate the upcoming year while celebrants eat special round dumplings to celebrate unity.In Vietnam,the new year festival is known as Tet Nguyen Dan,and is celebrated for seven days. Much like Chinese New Year,Tet is believed to be an especially auspicious period in Vietnam which will establish the fortunes of celebrants for the coming year.______(50)In Korea, the one day festival is known as Sol-nal,and is a time to reflect on ancestors and family.______(47)A: and a great deal of food and dinner invitations are exchanged as part of this tradition.B: The lanterns are paraded through towns and cities throughout China,Taiwan,and parts of the world with large Chinese communities.C: As a result,the year starts on a different day,usually in January or February by the Gregorian calendar.D: Chinese New Year is the most important festival in Chinese culture.E: Chinese New Year begins on the first day of the first moon of the year.F: Special foods are eaten and gifts are exchanged.
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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.
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单选题The restructuring of the company is likely not only to be expensive ______ also to be time consuming.A
orB
andC
soD
but
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单选题Now, the most effective form of advertising is _____.A
a 30-second prime-time TV ad.B
a 30-second prime-time online advertisingC
online advertisingD
most expensive TV ad.
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单选题Every year, we export sunflower seeds ____ large quantities _____ the far EastA
in, toB
to, inC
in, inD
to, to
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单选题（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.A
fragile or expensive cargoesB
raw materialsC
finished metallic productsD
manufactured goods of large size
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单选题Because of the good harvest, India had a large（）of wheat that year.A
donationB
supplementC
barnD
surplus
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单选题A similar wrong idea is that fish and ice cream when ______at the same time forma poisonous combination.A
eatingB
being eatenC
eatenD
to be eaten
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单选题The British Royal Society for the Prevention of Accidents (ROSPA) is petitioning to keep the UK on British Summer Time all year round, and they claim that nearly 450 serious accidents occur each year because of the time change.A
all year round, and they claim that nearly 450 serious accidents occur each year because of the time changeB
all throughout the year, and they claim that nearly 450 serious accidents occur each year because of itC
all year, claiming that nearly 450 serious accidents occur each year because of itD
all year round, claiming that nearly 450 serious accidents occur each year because of the time changeE
all year round, and they claim that nearly 450 serious accidents occur each and every year because of the time change
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