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Just a couple of days ago, climbers, backed by United Nations Environment Program (UNEP), returned from the Himalayas, where they gathered first-hand accounts from monks, local people and other travelers on the state of the environment of the world's most famous mountain range. They have recorded in words, in photographs, and on film, the dramatic impacts that global warming is having on glaciers, causing them to rapidly thaw, and build up melt waters in mountain lakes. As a result, these lakes could soon burst, sending millions of tons of water and rubble swirling down the valleys threatening life and limb. // The expedition has also looked at the impacts of tourism on the mountains, concluding that much of what is happening is environmentally damaging, and a burden on the people, wildlife and landscapes of these once pristine wilderness areas. //

Every year World Environment Day is an occasion to pause and reflect on the state of the environment. This year especially, faced with the findings of our climbers, in the International Year of the Mountains, I urge you to "Give Earth a Chance". I ask you to look at our daily impact on the planet and its peoples, and to take action to improve our environmental behavior. //

Although mountains have been revered since time began, such beliefs are no longer enough to preserve fragile mountain ecosystems, for the well-being of all. We face an immense challenge, the challenge of ensuring their stability and preservation for the generations to come. //

Mountains are our water-towers. Mountains are a major source of energy. Mountains feed those living on them. Mountain ecosystems are linked to life in the lowlands, to freshwater and to the seas. Mountains are islands of rich biological and cultural diversity, home to unique plants, animals, languages and traditions. //

Sustainable development is a must. We need to combine the environmental dimension with social activity and economic development. This must be our common target, especially in mountain regions. Without sustainable development we cannot solve the problems. It is not enough to simply say we have a conservation plan for nature, and natural resources. // We must give people a chance to live and survive in these regions, therefore we need jobs; we need a perspective for young people to remain there and not go to the big cities. Mountains are virtual treasure chests of untapped economic potential—vital to sustainable development. This was recognized by the Earth Summit in Rio. //

Mountains attract tourists, but tourism has to be well managed to minimize impact on sensitive mountain environments. Respect should be the byword of the tourists, and tour operators, that bring people into contact with local people and landscapes, //The respect includes paying local people a decent wage, sourcing local food and materials where possible, and observing local customs, beliefs and traditions. Tourists are guests in other peoples' ecosystems and should behave as such. Mountains as a resource HAVE to be valued, and some of that value has to benefit mountain dwellers. Earnings from tourism should be shared equitably between all stakeholders. //

Especially this year, the International Year of Ecotourism, every effort should be made to promote Ecotourism in mountains. For some communities and regions, sustainable tourism can be a first step towards sustainable development. Let us hope that all societies will come to revere mountains, and thus be motivated to invest in them, preserve this unique asset, and in turn reap benefit from it. //

On this World Environment Day let us all begin to act for the conservation not only of the mountains, but the sea, the land, water and the air too. Let us act to give the Earth a chance. An unpolluted pristine environment is vital to our survival, a precious resource, which will only endu


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更多 “ Just a couple of days ago, climbers, backed by United Nations Environment Program (UNEP), returned from the Himalayas, where they gathered first-hand accounts from monks, local people and other travelers on the state of the environment of the world's most famous mountain range. They have recorded in words, in photographs, and on film, the dramatic impacts that global warming is having on glaciers, causing them to rapidly thaw, and build up melt waters in mountain lakes. As a result, these lakes could soon burst, sending millions of tons of water and rubble swirling down the valleys threatening life and limb. // The expedition has also looked at the impacts of tourism on the mountains, concluding that much of what is happening is environmentally damaging, and a burden on the people, wildlife and landscapes of these once pristine wilderness areas. //Every year World Environment Day is an occasion to pause and reflect on the state of the environment. This year especially, faced with the findings of our climbers, in the International Year of the Mountains, I urge you to "Give Earth a Chance". I ask you to look at our daily impact on the planet and its peoples, and to take action to improve our environmental behavior. //Although mountains have been revered since time began, such beliefs are no longer enough to preserve fragile mountain ecosystems, for the well-being of all. We face an immense challenge, the challenge of ensuring their stability and preservation for the generations to come. //Mountains are our water-towers. Mountains are a major source of energy. Mountains feed those living on them. Mountain ecosystems are linked to life in the lowlands, to freshwater and to the seas. Mountains are islands of rich biological and cultural diversity, home to unique plants, animals, languages and traditions. //Sustainable development is a must. We need to combine the environmental dimension with social activity and economic development. This must be our common target, especially in mountain regions. Without sustainable development we cannot solve the problems. It is not enough to simply say we have a conservation plan for nature, and natural resources. // We must give people a chance to live and survive in these regions, therefore we need jobs; we need a perspective for young people to remain there and not go to the big cities. Mountains are virtual treasure chests of untapped economic potential—vital to sustainable development. This was recognized by the Earth Summit in Rio. //Mountains attract tourists, but tourism has to be well managed to minimize impact on sensitive mountain environments. Respect should be the byword of the tourists, and tour operators, that bring people into contact with local people and landscapes, //The respect includes paying local people a decent wage, sourcing local food and materials where possible, and observing local customs, beliefs and traditions. Tourists are guests in other peoples' ecosystems and should behave as such. Mountains as a resource HAVE to be valued, and some of that value has to benefit mountain dwellers. Earnings from tourism should be shared equitably between all stakeholders. //Especially this year, the International Year of Ecotourism, every effort should be made to promote Ecotourism in mountains. For some communities and regions, sustainable tourism can be a first step towards sustainable development. Let us hope that all societies will come to revere mountains, and thus be motivated to invest in them, preserve this unique asset, and in turn reap benefit from it. //On this World Environment Day let us all begin to act for the conservation not only of the mountains, but the sea, the land, water and the air too. Let us act to give the Earth a chance. An unpolluted pristine environment is vital to our survival, a precious resource, which will only endu ” 相关考题
考题 Popular breakfast foods in the United States, as in many other countries around the world, include coffee, milk, juice, eggs and bread. Some other breakfast items served in the United States are thought by many to be traditionally American. However, they actually come from other countries.A very popular breakfast food in America is the pancake---a thin, flat cake made out of flour and often served with maple syrup. The idea of the pancake is very old. In fact, pancakes were made long ago in ancient China.Bagels, a round thick bread with a hole in the middle, are also popular for breakfast in America. Polish people in the late 1600s came up with the idea for the first bagels and this new kind of bread soon took off across Eastern Europe.In the late 1800s, thousands of Jews from Eastern Europe traveled to the United States and brought the recipe for bagels with them. Today, New York bagels are said to be the best in the world. Many people have them with cream cheese for breakfast on the go.Doughnuts (usually spelled “donut” in the United States) came from France. They were served to American soldiers in France during World War Ⅰ(第一次世界大战). After the war, American soldiers asked cooks in the United States to make doughnuts for them. Now, served with coffee, they are a very popular breakfast food across the United States.41. This reading is mainly about _______.A. famous places in the United States to eat breakfastB. popular American breakfast foods coming from ChinaC. the most popular types of pancakes in the United StatesD. the history of popular breakfast foods in the United States

考题 听力原文: It is a great privilege for me to be invited to speak at the tenth year reunion of State University' s graduating class. When you arrived on campus today, after a decade, you were probably impressed by two changes at State:one, the absence of University Tower, the first building constructed on the campus, and a historic landmark for many years; and two, the disappearance of parking lots on main campus.Two years ago, University Tower was inspected and found to be unsafe. In spite of efforts to restore it, it was necessary to level the building. A bell tower was constructed on the same site, built for the most part using the good brick that was saved from the original building. The original bells were also preserved. As for the parking lots, they have been replaced by grass, trees, and pedestrian walkways. Parking is now located in parking garages on the North and West sides of the campus.Two more subtle changes have occurred within the past decade. One is the creation and expansion of the Division of Continuing Education for the Community, including a Saturday and summer enrichment program for children, and an afternoon and evening special interest program for adult. The other is the addition of the student population of many young people from abroad, especially students from Japan, Latin America, and the Middle East, Most international students are enrolled in the College of Engineering and the college of Business.And so, State is a different place, but like University Tower, it is built of the same brick. We are still committed to the same age old ideals "quality education for our citizens", but we have extended our commitment beyond the borders of our state and nation to encompass the citizens and nations of the world.What is the occasion for the man's speech?A.Graduation.B.A class reunion.C.The dedication of a new building.D.The groundbreaking ceremony for a pedestrian walkway on campus.

考题 EIt's only 4 hours flying time from Sydney, but a world away. What better place to rest than a country where the only place people hurry is on the football field and things are done in "Fiji time"?Viti Lev-Great Fiji-is the largest island. Here you'll find the capital Suva and the international airport at Nadi Vatoa, on the other hand, is a tiny island in the farthest part of Hiji. Then there are 331 other islands, many of them with places to stay.With less than a million people living on islands, you'll never feel crowded And with a climate(气候)that changes only for five degrees between seasons, there’s never a bad time to come.From cities to villages, from mountains to beaches, from water sports to wooden artworks, Fiji can give you more adventures and special experiences than you could find almost any where in the world.Whenever you come , wherever you go ,you’re sure to see some unforgettable events , From war dances to religious (宗教的) songs. From market days to religious days. It's not just staged for tourists; it's still a part of everyday life in Fiji And any one of us can enjoy Fiji's spirit by being part of the traditional (传统的) sharing of yaqona—a drink made from the root of a Fiji plantSo why not join us for the experience of a lifetime?57. Where is the international airport of Fiji?A. In Suva B. In SydneyC. On the island of Vatoa D. On the island of Viti Levu

考题 根据下面,回答 57 ~ 60 题: EIt's only 4 hours flying time from Sydney, but a world away. What better place to rest than a country where the only place people hurry is on the football field and things are done in "Fiji time"?Viti Lev-Great Fiji-is the largest island.Here you'll find the capital Suva and the international airport at Nadi Vatoa, on the other hand, is a tiny island in the farthest part of Hiji. Then there are 331 other islands, many of them with places to stay.With less than a million people living on islands, you'll never feel crowded And with a climate(气候)that changes only for five degrees between seasons, there’s never a bad time to come.From cities to villages, from mountains to beaches, from water sports to wooden artworks, Fiji can give you more adventures and special experiences than you could find almost any where in the world.Whenever you come , wherever you go ,you’re sure to see some unforgettable events , From war dances to religious (宗教的) songs. From market days to religious days. It's not just staged for tourists; it's still a part of everyday life in Fiji And any one of us can enjoy Fiji's spirit by being part of the traditional (传统的) sharing of yaqona—a drink made from the root of a Fiji plantSo why not join us for the experience of a lifetime?第17题:Where is the international airport of Fiji?A.In SuvaB.In SydneyC.On the island of VatoaD.On the island of Viti Levu

考题 A military member has just returned to the United States from Europe and reports their personaldesktop computer does not work. Which of the following is the MOST logical solution to thisproblem?() A. The computer is unable to work in the US because of EU licensing arrangementsB. The power supply needs to be replaced with one rated for 110 wattsC. The power supply needs a power inverter to handle the change in cyclesD. The power supply voltage needs to be switched to 110 from 220

考题 An administrator created a .env file in a user‘s home directory to configure a number of custom environment variables for a local application. However, after the user logs out and then logs back into the system, the custom variables are not being set.What is the most likely reason that the custom .env file is being ignored?()A.A shell other than ksh is being used by the user.B.The line ‘export ENV=$HOME/.env‘ is missing from /etc/profile.C.The line ‘export ENV=$HOME/.env‘ is missing from the user‘s .profile.D.The env_profile attribute is not defined for the user within /etc/security/user.

考题 It's the paintings in Louvre______Da Vinci worked on for years______have become a fascination to people from all over the world.A.where; that B.that; when C.that; that D.where; when

考题 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

考题 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.

考题 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.

考题 共用题干 Urbanization and Its InfluenceOver half the world's people now live in cities.The latest"Global Report on Human Settlements"says a significant change took place last year. The report________(51)this week from U.N.Habitat,a United Nations agency.A century ago,________(52)than five percent of all people lived in cities.________(53) the middle of this century it could be seventy percent,or ________(54)six and a half billion people.Already three一fourths of people in________(55)countries live in cities.Now most urban population________(56)is in the developing world.Urbanization can lead to social and economic progress,but also put________(57)on cities to provide housing and________(58).The new report says almost two hundred thousand people move________(59)cities and towns each day.It says worsening inequalities,________(60)by social divisions and differences in________(61),could result in violence and crime unless cities plan better.Another issue is urban sprawl(无序扩展的城区).This is where cities _________ (62) quickly into rural areas,sometimes________(63)a much faster rate than urban population growth.Sprawl is common in the United States. Americans move a lot.In a recent study,Art Hall at the University of Kansas found that people are moving away from the________(64)cities to smaller ones.He sees a________(65)toward"de-urbanization"across the nation._________(62)A:expand B:invadeC:split D:enlarge

考题 Why has Australia always been a continent with few people?()ABecause Australia is too far away from Europe.BBecause Australia is the least mountainous and most level of the world.s continents.CBecause Australia is separated from the rest of the world by seas.DBecause most of the continent is hot and dry.

考题 Why has Australia always been a continent with few people?()A、Because Australia is too far away from Europe.B、Because Australia is the least mountainous and most level of the world.s continents.C、Because Australia is separated from the rest of the world by seas.D、Because most of the continent is hot and dry.

考题 What is the most common cause of network congestion?()A、aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB、speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC、flapping Ethernet interfaces caused by misconfigured LAN interfacesD、flapping serial interfaces caused by misconfigured WAN interfacesE、speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment

考题 A military member has just returned to the United States from Europe and reports their personaldesktop computer does not work. Which of the following is the MOST logical solution to thisproblem?()A、The computer is unable to work in the US because of EU licensing arrangementsB、The power supply needs to be replaced with one rated for 110 wattsC、The power supply needs a power inverter to handle the change in cyclesD、The power supply voltage needs to be switched to 110 from 220

考题 An administrator created a .env file in a user’s home directory to configure a number of custom environment variables for a local application. However, after the user logs out and then logs back into the system, the custom variables are not being set What is the most likely reason that the custom .env file is being ignored?()A、A shell other than ksh is being used by the user.B、The line ’export ENV=$HOME/.env’ is missing from /etc/profile.C、The line ’export ENV=$HOME/.env’ is missing from the user’s .profile.D、The env_profile attribute is not defined for the user within /etc/security/user.

考题 A customer is moving from an HP-UX environment to an AIX environment. They will be producing a master image of the environment and will need to install it into hundreds of LPARs and WPARs.  Which AIX tool will be of most use in this case?()A、NIMB、smitC、SUMAD、netboot

考题 单选题You are working in an online transaction processing (OLTP) environment. You realize that the salary for an employee, John, has been accidentally modified in the EMPLOYEES table. Two days ago, the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area.  Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected?()A perform point­in­time recoveryB perform a Flashback Table operation to restore the table to the state it was in two days ago C perform a Flashback Database operation to restore the database to the state it was in two days agoD perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements, and then use them for recovery

考题 问答题Power and Cooperation: An American Foreign Policy for the Age of Global Politics  The age of geopolitics in American foreign policy is over; the age of global politics has begun. Throughout the twentieth century, traditional geopolitics drove U. S. thinking on foreign affairs: American security depended on preventing any one country from achieving dominion over the Eurasian landmass. That objective was achieved with the collapse of the Soviet Union. Now the United States finds itself confronting a new international environment, one without a peer competitor but that nonetheless presents serious threats to American security. The terrorists who struck the World Trade Center and the Pentagon neither represented a traditional state-based threat nor were tied to a specific geographical location. Nevertheless, nineteen people with just a few hundred thousand dollars succeeded in harming the most powerful nation on earth.  For more than three centuries, the dynamics of world politics was determined by the interplay among states, especially the great powers. Today, world politics is shaped by two unprecedented phenomena that are in some tension with each other. One is the sheer predominance of the United States. Today, as never before, what matters most in international politics is how—and whether—Washington acts on any given issue. The other is globalization, which has unleashed economic, political, and social forces that are beyond the capacity of any one country, including the United States, to control.  American primacy and globalization bring the United States great rewards as well as great dangers. Primacy gives Washington an unsurpassed ability to get its way in international affairs, while globalization enriches the American economy and spreads American values. But America’s great power and the penetration of its culture, products, and influence deep into other societies breed intense resentment and grievances. Great power and great wealth do not necessarily produce greater respect or greater security. American leaders and the American people are now grappling with the double-edged sword that is the age of global politics.

考题 问答题◆Topic 6: Is International Tourism an Effective Bridge of Different Nations?  Questions for Reference:  1. Why do you think people like to take an international tourism?  2. What kind of situation are the travelers most likely to be faced with when they get on an international tourism?  3. The international tourism does not promote understanding between people from different cultures. Do you agree?

考题 单选题The Danes believe that they are ______.A orderly people just like the Germans and the SwedesB different from either the Germans or the SwedesC more like the British peopleD not orderly people as other people think

考题 单选题An administrator created a .env file in a user’s home directory to configure a number of custom environment variables for a local application. However, after the user logs out and then logs back into the system, the custom variables are not being set What is the most likely reason that the custom .env file is being ignored?()A A shell other than ksh is being used by the user.B The line ’export ENV=$HOME/.env’ is missing from /etc/profile.C The line ’export ENV=$HOME/.env’ is missing from the user’s .profile.D The env_profile attribute is not defined for the user within /etc/security/user.

考题 单选题Most tree frogs change colors from time to time to fit in with its environment.A MostB changeC from time to timeD its

考题 单选题What is the most common cause of network congestion?()A aggregation congestion occurring at the core layer where the different distribution layer devices feed traffic to the core-layer switchesB speed mismatches when moving from a low-speed LAN environment to a higher speed WAN environmentC flapping Ethernet interfaces caused by misconfigured LAN interfacesD flapping serial interfaces caused by misconfigured WAN interfacesE speed mismatches when moving from a high-speed LAN environment to a lower speed WAN environment

考题 问答题Practice 6  If there's a threat of dangerous deflation—a general fall in prices—the causes lie as much in Europe and Japan as in the United States. The inevitable collapse of America's speculative boom need not have been especially damaging if the world's other advanced economies were healthy. Their expanding appetite for imports would have bolstered the United States and so-called emerging market countries, from Brazil to South Korea. The trouble is that other advanced economies aren't healthy.  Deflation could emerge from simultaneous slumps in the world's three major economies. Prices drop because there's too little global demand chasing too much global supply—everything from steel to shoes. Japan's ills are well known. Its banks are awash in bad loans. Less understood (at least in the United States) is the fact that Europe's troubles stem significantly from Germany. Germany is Europe's “sick man”, just as Japan is Asia's. Only 15 years ago, these countries seemed poised to assume leadership of the world economy. Now they are dragging it down.

考题 单选题The United Nations Conference on Global Environment, which took place earlier this year in Vienna, was a very() meeting.A productiveB communicativeC aggressiveD protective

考题 问答题Practice 8  The United States has long been known as a “melting pot”, because many of its people are descended from settlers who came from all over the world to make their homes in the new land. The first immigrants in American history came from England and the Netherlands. Attracted by reports of great economic opportunities and religious and political freedom, immigrants from many other countries flocked to the United States in increasing numbers, reaching a peak in the years 1880—1914. Between 1820 and 1980 the United States admitted almost 50 million immigrants.  Some 1,360,000 American Indians, descendants of North America's first inhabitants, now reside in the United States. Most live in the West, but many are in the south and north central areas. Of the more than 300 separate tribes, the largest is the Navaho in the Southwest.  Black people were first brought to America from Africa as slaves. Their descendants now make up nearly 12 percent of the population. They once lived mainly in the agricultural South but now are scattered throughout the nation.