共用题干第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula(半岛)was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800,000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp(纸浆).In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.What is mainly responsible for the economic growth in Alaska now?A:Gold. B:Oil.C:Fish. D:Fur.

共用题干
第三篇
Alaska
In 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula(半岛)was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.
In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.
Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800,000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?
Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.
In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.
The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp(纸浆).In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.

What is mainly responsible for the economic growth in Alaska now?
A:Gold.
B:Oil.
C:Fish.
D:Fur.

参考解析

解析:本文主要讲述了阿拉斯加半岛的地理位置、地貌特征、可耕种面积、土著居民以及主要经济产业等内容。
由文章第一段第一句话“…when the peninsula was purchased from Russia.”可知,阿拉斯加半岛曾是俄罗斯的一部分。故选D。
由文章第三段中“800,000 hectares of its land area are fit for plowing...”可知,阿拉斯加州的一些土地适合耕种。故选B。
由文章第四段第三句话“The Eskimos are the state' s earliest known inhabitants.”可知,爱斯基摩人是阿拉斯加州的土著居民。故选A。
由文章第五段最后两句话“.and within the state, every town has its own airfield.Planes fly passengers, mail and freight to the most distant villages.”可知,阿拉斯加州的主要交通工具是飞机。故选C。
由文章最后一段可知,虽然成千上万的美国人奔赴阿拉斯加州淘金,但是阿拉斯加州的金子对经济发展的贡献远不如阿拉斯加州水里的鱼。那里一年捕到的鱼能卖8 000万到 9 000万美元。故选C。

相关考题:

This passage tells us that ________.A. the Americans like to eat sweet foods for breakfastB. all American foods come from other countriesC. not all American foods are really AmericanD. very few Americans have breakfast every day

Another virtue Americans respect is perseverance. Remember Aesop’s fableabout the turtle and the rabbit that had a race? The rabbit thought he could win easily, so he took a nap. But the turtle finally won because he did not give up. Another story tells of a little train that had to climb a steep hill. The hill was so steep that the little train had a hard time trying to get over it. But the train just kept pulling, all the while saying, I think I can, I think I can. Atlast, the train was over the top of the hill. I thought I could, I thought I could, chugged the happy little train. Compassion may be the queen of American virtues. The story of ―The Good Samaritan from the Bible describes a man who showed compassion. On his way to a certain city, a Samaritan man found a poor traveler lying on the road.The traveler had been beaten and robbed. The kind Samaritan, instead of just passing by, stopped to help this person in need. Compassion can even turn into a positive cycle. In fall 1992, people in Iowa sent truckloads of water to help Floridians hit by a hurricane. The next summer, during the Midwest flooding,Florida returned the favor. In less dramatic ways, millions of Americans are quietly passing along the kindnesses shown to them.Great moral stories can build character. The success of The Book of Virtues in 1993 shows that many Americans still believe in moral values. Moral values are invaluable.(1)According to the author, perseverance means _______.A、I think I can.B、it doesn’t matter if we are slow.C、never to give up.D、to experience a hard time.(2)According to the author, compassion may be the queen of American virtues because ________.A、it is the virtue Americans respect mostB、it is as noble as a queenC、it is from the BibleD、it is showed by the the Good Samaritan(3)What’s the author's purpose of telling the story of Florida's hurricane?A、To show how people help each other in America.B、To show how Floridians suffered from the hurricane seriously.C、To give an example of compassion.D、To show water is in great need for Floridians hit by hurricane.(4)According to the passage, which of the follo wing is TRUE?A、Florida helped the Midwest because the Midwest helped it before.B、Compassion could hardly be a positive cycle.C、Florida was grateful to what Iowa had done.D、Most Americans pay no attention to the kindnesses shown to them.(5)According to the author, moral values are _______.A、respectfulB、of great valuesC、of no valueD、less dramatic

22. Which is similar to the sentence "It's true that most Americans take fast food as their breakfast and lunch"?A. Most Americans don’t eat fast food for their breakfast or lunch.B. Most Americans have fast food for their breakfast and lunch.C. Most Americans like to eat fast food for dinner.

On most campuses, one can find an international club, which includes Americans, where students can get to know and learn socially from students from other countries, as well as Americans.

It can be inferred from the passage that by the end of World War Ⅱ , most Americans ______.A. were very richB. lived in povertyC. did not own automobilesD. had own automobiles

Most of the kids from rich families are spoiled heirs with little responsibilities and they are living ______ their parents. A、offB、atC、throughD、from

The music that Americans are used to ______ to might sound strange to someone from another culture.A、listenB、be listenedC、listeningD、listened

阅读下面短文,回答从的 114~116 题目。Martin Luther King Jr.was born in Georgia in 1 929.When was still a boy Martin learned that his people,the black Americans,when often treated differently from most of( )fellow Americans.Many could not attend good schools,get good jobs,or live in nice houses because of the color of their ( ) .Manin knew that in a free country this was wrong.He wanted to help his black brothers,( )he decided to go to school and become a minister.第 114 题 ( )A.hisB.thoseC.mostD.their

共用题干第三篇Judging from recent surveys,most experts in sleep behavior agree that it is virtually an epidemic of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably be better off with more rest.The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark." By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr. David."They think they're okay because they can get by on 6.5 hours,when they really need 7.5,8 or even more to feel ideally vigorous.""Perhaps the most merciless robber of sleep,"researchers say,"is the complexity of the day." Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his program."In our society,you're considered dynamic if you say you only need 5.5 hours' sleep.If you've got to get 8.5 hours,people think you lack drive and ambition."To determine the consequences of sleep deficit,researchers have put subjects through a set of psychological and performance tests requiring them,for instance,to add columns of numbers or recall a page read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr. David."Short-term memory is weakened,as are abilities to make decision and to concentrate."According to Dr. David,Americans___________.A: are ideally vigorous even under the pressure of lifeB:often neglect the consequences of sleep deficitC:do not know how to relax themselves properlyD:can get by on 6.5 hours of sleep

共用题干第三篇Judging from recent surveys,most experts in sleep behavior agree that it is virtually an epidemic of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably be better off with more rest.The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark." By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr. David."They think they're okay because they can get by on 6.5 hours,when they really need 7.5,8 or even more to feel ideally vigorous.""Perhaps the most merciless robber of sleep,"researchers say,"is the complexity of the day." Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his program."In our society,you're considered dynamic if you say you only need 5.5 hours' sleep.If you've got to get 8.5 hours,people think you lack drive and ambition."To determine the consequences of sleep deficit,researchers have put subjects through a set of psychological and performance tests requiring them,for instance,to add columns of numbers or recall a page read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr. David."Short-term memory is weakened,as are abilities to make decision and to concentrate."Many Americans believe that__________.A:sleep is the first thing that can be sacrificed when one is busyB:they need more sleep to cope with the complexities of everyday lifeC:to sleep is something one can do at any time of the dayD:enough sleep promotes people's drive and ambition

共用题干第三篇Judging from recent surveys,most experts in sleep behavior agree that it is virtually an epidemic of sleepiness in the nation."I can't think of a single study that hasn't found Americans getting less sleep than they ought to,"says Dr. David.Even people who think they are sleeping enough would probably be better off with more rest.The beginning of our sleep-deficit crisis can be traced to the invention of the light bulb a century ago.From diary entries and other personal accounts from the 18th and 19th centuries,sleep scientists have reached the conclusion that the average person used to sleep about 9.5 hours a night. "The best sleep habits once were forced on us,when we had nothing to do in the evening down on the farm,and it was dark." By the 1950s and 1960s,that sleep schedule had been reduced dramatically,to between 7.5 and 8 hours,and most people had to wake to an alarm clock."People cheat on their sleep,and they don't even realize they're doing it,"says Dr. David."They think they're okay because they can get by on 6.5 hours,when they really need 7.5,8 or even more to feel ideally vigorous.""Perhaps the most merciless robber of sleep,"researchers say,"is the complexity of the day." Whenever pressures from work,family,friends and community mount,many people consider sleep the least expensive item on his program."In our society,you're considered dynamic if you say you only need 5.5 hours' sleep.If you've got to get 8.5 hours,people think you lack drive and ambition."To determine the consequences of sleep deficit,researchers have put subjects through a set of psychological and performance tests requiring them,for instance,to add columns of numbers or recall a page read to them only minutes earlier."We've found that if you're in sleep deficit,performance suffers,"says Dr. David."Short-term memory is weakened,as are abilities to make decision and to concentrate."It can be concluded from the passage that one should sleep as many hours as is necessary to________.A:improve one's memory dramaticallyB:be considered dynamic by other peopleC:maintain one's daily scheduleD:feel energetic and perform adequately

When I try to understand( )that prevents so many Americans from being as happy as one might expect,it seems to me that there are two causes.A.why it doesB.what it doesC.what it isD.why it is

共用题干In Your FaceWhy is this man so angry?We don't know the reason,but we can see the emotion in his face.What- ever culture you come from,you can understand the feeling that he is expressing.Forty years ago,psychologist Paul Ekman of the University of California,San Francisco,became interested in how people's faces show their feelings.He took photographs of Americans expressing various emotions.Then he showed them to the Fore people,who live in the jungle in New Guinea. Most of the Fore had never seen foreign faces,but they easily understood Americans' expressions of anger,happiness,sad- ness,disgust,fear,and surprise.Then Ekman did the same experiment in reverse.He showed pictures of Fore faces to Americans,and the results were similar. Americans had no problems reading the emotions on the Fore people's faces. Ekman's research gave powerful support to the theory that facial expressions for basic emotions are the same everywhere.He did more research in Japan,Brazil,and Argentina,and got the same results.According to Ekman,these six emotions are universal because they are built into our brains.Theydeveloped to help us deal with things quickly that might hurt us.Some emotional triggers are universal as well.When something suddenly comes into sight,people feel fear,because it might be dangerous.But most emotional triggers are learned.For example,two people might smell newly cut grass.One person spent won- derful summers in the country as a child,so the smell makes him happy.The other person remembers work- ing very hard on a farm and being hungry,so he feels sad.Once we make an emotional association in our brain,it is difficult,and sometimes impossible,to change it."Emotion is the least changeable part of the brain,"says Ekman.But we can learn to manage our emotions better. For instance,we can be more aware of things that make us angry,and we can think before we react.There are many differences between cultures,in their languages and customs.But a smile is exactly the same everywhere.Fear is the most difficult emotion to change.A:RightB:WrongC:Not mentioned

共用题干第三篇"Clean your plate!"and"Be a member of the clean-plate club!"Just about every kid in the US has heard this from a parent or grandparent. Often,it's accompanied by an appeal:"Just think about those starving orphans in Africa!"Sure,we should be grateful for every bite of food. Unfortunately,many people in the US take too many bites.Instead of staying"clean the plate",perhaps we should save some food for tomorrow.According to news reports,US restaurants are partly to blame for the growing bellies.A waiter puts a plate of food in front of each customer,with two to four times the amount recommended by the government,according to a USA Today story.Americans traditionally associate quantity with, value and most restaurants try to give them that.They prefer to have customers complain about too much food rather than too little.Barbara Rolls,a nutrition professor at Pennsylvania State University,told USA Today that restaurant portion sizes began to grow in the 1970s,the same time that the American waistline began to expand.Health experts have tried to get many restaurants to serve smaller portions.Now,apparently, some customers are calling for this too.The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4,000 people surveyed believe restaurants serve portions that are too large;23 percent had no opinion;20 percent disagreed.But a closer look at the survey indicates that many Americans who can't afford fine dining still prefer large portions.Seventy percent of those earning at least ¥150,000 per year prefer smaller portions;but only 45 percent of those earning less than ¥25,000 want smaller.It's not that working class Americans don't want to eat healthy.It's just that,after long hours at lowpaying jobs,getting less on their plate hardly seems like a good deal.They live from paycheck to paycheck,happy to save a little money for next year's Christmas presents.What does the survey indicate?A:Many poor Americans want large portions.B:Twenty percent Americans want smaller portions.C:Fifty seven percent Americans earn ¥150,000 per year.D:Twenty three percent Americans earn less than ¥25,000 per year.

共用题干第三篇"Clean your plate!"and"Be a member of the clean-plate club!"Just about every kid in the US has heard this from a parent or grandparent. Often,it's accompanied by an appeal:"Just think about those starving orphans in Africa!"Sure,we should be grateful for every bite of food. Unfortunately,many people in the US take too many bites.Instead of staying"clean the plate",perhaps we should save some food for tomorrow.According to news reports,US restaurants are partly to blame for the growing bellies.A waiter puts a plate of food in front of each customer,with two to four times the amount recommended by the government,according to a USA Today story.Americans traditionally associate quantity with, value and most restaurants try to give them that.They prefer to have customers complain about too much food rather than too little.Barbara Rolls,a nutrition professor at Pennsylvania State University,told USA Today that restaurant portion sizes began to grow in the 1970s,the same time that the American waistline began to expand.Health experts have tried to get many restaurants to serve smaller portions.Now,apparently, some customers are calling for this too.The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4,000 people surveyed believe restaurants serve portions that are too large;23 percent had no opinion;20 percent disagreed.But a closer look at the survey indicates that many Americans who can't afford fine dining still prefer large portions.Seventy percent of those earning at least ¥150,000 per year prefer smaller portions;but only 45 percent of those earning less than ¥25,000 want smaller.It's not that working class Americans don't want to eat healthy.It's just that,after long hours at lowpaying jobs,getting less on their plate hardly seems like a good deal.They live from paycheck to paycheck,happy to save a little money for next year's Christmas presents.Why do American restaurants serve large portions?A:Because Americans associate quantity with value.B:Because Americans have big bellies.C:Because Americans are good eaters.D:Because Americans are greedy.

共用题干In Your FaceWhy is this man so angry?We don't know the reason,but we can see the emotion in his face.What- ever culture you come from,you can understand the feeling that he is expressing.Forty years ago,psychologist Paul Ekman of the University of California,San Francisco,became interested in how people's faces show their feelings.He took photographs of Americans expressing various emotions.Then he showed them to the Fore people,who live in the jungle in New Guinea. Most of the Fore had never seen foreign faces,but they easily understood Americans' expressions of anger,happiness,sad- ness,disgust,fear,and surprise.Then Ekman did the same experiment in reverse.He showed pictures of Fore faces to Americans,and the results were similar. Americans had no problems reading the emotions on the Fore people's faces. Ekman's research gave powerful support to the theory that facial expressions for basic emotions are the same everywhere.He did more research in Japan,Brazil,and Argentina,and got the same results.According to Ekman,these six emotions are universal because they are built into our brains.Theydeveloped to help us deal with things quickly that might hurt us.Some emotional triggers are universal as well.When something suddenly comes into sight,people feel fear,because it might be dangerous.But most emotional triggers are learned.For example,two people might smell newly cut grass.One person spent won- derful summers in the country as a child,so the smell makes him happy.The other person remembers work- ing very hard on a farm and being hungry,so he feels sad.Once we make an emotional association in our brain,it is difficult,and sometimes impossible,to change it."Emotion is the least changeable part of the brain,"says Ekman.But we can learn to manage our emotions better. For instance,we can be more aware of things that make us angry,and we can think before we react.There are many differences between cultures,in their languages and customs.But a smile is exactly the same everywhere.Americans get angry more often than the Fore people from New Guinea.A:RightB:WrongC:Not mentioned

共用题干第三篇"Clean your plate!"and"Be a member of the clean-plate club!"Just about every kid in the US has heard this from a parent or grandparent. Often,it's accompanied by an appeal:"Just think about those starving orphans in Africa!"Sure,we should be grateful for every bite of food. Unfortunately,many people in the US take too many bites.Instead of staying"clean the plate",perhaps we should save some food for tomorrow.According to news reports,US restaurants are partly to blame for the growing bellies.A waiter puts a plate of food in front of each customer,with two to four times the amount recommended by the government,according to a USA Today story.Americans traditionally associate quantity with, value and most restaurants try to give them that.They prefer to have customers complain about too much food rather than too little.Barbara Rolls,a nutrition professor at Pennsylvania State University,told USA Today that restaurant portion sizes began to grow in the 1970s,the same time that the American waistline began to expand.Health experts have tried to get many restaurants to serve smaller portions.Now,apparently, some customers are calling for this too.The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4,000 people surveyed believe restaurants serve portions that are too large;23 percent had no opinion;20 percent disagreed.But a closer look at the survey indicates that many Americans who can't afford fine dining still prefer large portions.Seventy percent of those earning at least ¥150,000 per year prefer smaller portions;but only 45 percent of those earning less than ¥25,000 want smaller.It's not that working class Americans don't want to eat healthy.It's just that,after long hours at lowpaying jobs,getting less on their plate hardly seems like a good deal.They live from paycheck to paycheck,happy to save a little money for next year's Christmas presents.Which of the following is Not true of working class Americans?A:They work long hours.B:They live from paycheck to paycheck.C:They don't want to be healthy eaters.D:They want to save money for their children.

Martin Luther King,〖KG-*2〗Jr.was born in Georgia in 1929.When was still a boy Martin learned that his people,the black Americans,were often treated differently from most of( )fellow Americans. A. hisB. thoseC. mostD. their

共用题干第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula(半岛)was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800,000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp(纸浆).In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.Alaska is an American state that________.A:locates within the Arctic CircleB:was known by Americans before 1867C:lies to the east of CanadaD:was once owned by Russia

共用题干第三篇AlaskaIn 1959 Americans welcomed Alaska into the Union as the 49th state,symbolizing a change of attitude from that held in 1867, when the peninsula(半岛)was purchased from Russia.Then, most Americans had little interest in 1,500,000 square kilometers"of icebergs and polar bears"-beyond Canada's western borders,far from the settled areas of the United States.In those sections of the state which lie above the Arctic Circle,Alaska still is a land of icebergs and polar bears.Ice masses lie buried in the earth.From early May until early August,the midnight sun never :ts on this flat,treeless region,but the sun cannot melt the icy soil more than two-thirds of a meter down.Alaska is America's largest state,but only about 325,000 people live there.According to estimates, 800,000 hectares of its land area are fit for plowing but only about 640,000 hectares are being cultivated?Arctic Alaska has been the home of Eskimos for countless centuries.It is believed that the Eskimos moved there from Mongolia or Siberia,probably crossing Bering Strait,named for Vitus Bering,the Danish ea captain who discovered Alaska on his voyage for Russia in 1741.The Eskimos are the state's earliest known inhabitants.Russian fur traders established settlements but,by the time Alaska was sold to the United States,most of the traders had departed.In 1896 gold was discovered near the Klondike River in Canada just across the Alaskan border.Thousands of Americans rushed to the region on their way to Klondike;some never returned.Alaska was ,ever completely cut off again,although even today transportation is a major problem.There are only two motor routes from the US mainland,and within the state,every town has its own airfield.Planes fly passengers,mail and freight to the most distant villages.The gold that changed life so suddenly for Alaska was soon ended,and although many stories about fining camps have become part of American literature,the gold from Alaskan earth contributed less to ,economic progress than the fish from Alaskan waters.The fish?caught in a single year range in value from $80 million to $90 million.Fur一bearing animals are plentiful in the forests and streams,and valuable fur seals inhabit the waters.After fishing,the state's chief industry is lumber and the production of wood pulp(纸浆).In recent years,Alaska's single most important resource has become oil.The state also has large deposits of coal,copper,gold and other minerals.What is true about the Eskimos?A:They are the natives of Alaska.B:They moved to Alaska from Denmark.C:They had a long fight with the Russian traders?D:They discovered gold near the Klondike River.

Under which two circumstances would an RSTP bridge flush its CAM table?()A、upon a port state changeB、upon receiving a topology change notificationC、when transitioning from discarding to forwardingD、when transitioning from forwarding to discardingE、only when changing from listening to discardingF、when CAM resources have been completely used up

多选题Under which two circumstances would an RSTP bridge flush its CAM table?()Aupon a port state changeBupon receiving a topology change notificationCwhen transitioning from discarding to forwardingDwhen transitioning from forwarding to discardingEonly when changing from listening to discardingFwhen CAM resources have been completely used up

单选题What can a culture camp help to do according to Peter Kassen?AIt helps the adopted kids form a correct attitude to their complex heritage.BIt helps the Chinese children have fun with their American parents.CIt helps the Americans increase the adoption from Russia and China.DIt helps the American parents adopt children from other countries.

单选题What can be concluded from the passage?AMedical tests and education for Americans with diabetes are not covered by the present healthcare schemes.BIf you are 20 years old or more, you are more likely to suffer from diabetes.CFamily help is the more important and most effective in detecting and treating diabetes.DIn the US, July 1 is a day of celebration for hospital staff, nurses and patients.

单选题When Americans groan about high taxes, most accept that it would be unethical not to pay the taxes owed.AWhileBIfCWhereverDProvided

单选题The music that Americans are used to()to might sound strange to someone from another culture.AlistenBbe listenedClisteningDlistened

问答题If you think American cooking means opening a package and tossing the contents into the microwave, think again. On the one hand, it's true that Americans thrive on cold cereal for breakfast, sandwiches for lunch and instant dinners. From busy homemakers to professional people, many Americans enjoy the convenience of prepackaged meals that can be ready to serve in 10 minutes or less. On the other hand, many Americans recognize the value of cooking skills. Most Americans will admit that there's nothing better than a good home-cooked meal.