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题型:阅读理解-阅读单选 难度:0.65 引用次数:108 题号:19437158

The world’s longest cave system is an enormous network of 420 miles of twists and turns, with limestone (石灰岩) falling from the ceilings in drops.

Mammoth Cave National Park preserves this unique and historical natural wonder. As large as the limestone cave system is, park officials, estimate there may be another 600 miles of cave passageways that have yet to be explored. The incredible rock formations have resulted in the park being recognized as a World Heritage Site, thanks to its extraordinary size and scientific importance –– making it one of only 13 natural US sites with that title.

The caves were created naturally by the process of limestone wearing away. Rain and rivers slowly break down and shape soft limestone, which creates the vast underground network. Not only are they an amazing destination to visit, but the system also provides drinking water for roughly 40% of the US population, and they’re of historical significance too.

The caves act as a time capsule that preserves over 5,000 years of human history — and the caves’ first explorers were Native Americans, who mined the upper levels of Mammoth Cave. Thanks to the cave system’s atmosphere and natural protection from any kind of human disturbance, the archaeological (考古的) sites have been left in great shape.

Mammoth Cave was established as a national park thanks to strong local support. Back in the 1920s, Secretary of the Interior Hubert Work created the Southern Appalachian National Park Commission in 1925 to survey proposed park sites, including the caves. After years of work acquiring the land for the park, as well as building roads, trails (小径), and public facilities, Mammoth Cave National Park was established on July 1, 1941. The park now receives around 2 million visitors a year, with roughly a quarter taking a tour of the caves –– everything from a cultural tour to the more adventurous climbing tours on offer. The cave supports more than 130 wildlife species, such as the eyeless cavefish, which has adapted to the lightless environment by no longer growing eyes, and the cave crayfish.

1. What has made Mammoth Cave National Park a World Heritage Site?
A.The wildlife species.B.The rock formations.
C.The cave passageways.D.The scientific discovery.
2. Why are the caves of historical value?
A.They are an amazing destination to visit.
B.They were first explored by Native Americans.
C.They provide drinking water for the Americans.
D.They preserve human history over 5000 years.
3. What can be inferred from the last paragraph?
A.It took a lot of work to establish the park.
B.Local people donated the land for the park.
C.Around 2 million people visit the caves annually.
D.The site of the park was decided by the secretary.
4. What can be the best title of the passage?
A.Taking cultural and adventurous tours
B.Preserving a unique and historical wonder
C.Exploring the world’s longest cave system
D.Establishing Mammoth Cave National Park

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文章大意:本文是一篇说明文。文章主要介绍了年轻人对环游世界的梦想和现状,并详细说明了与此相关的一些情况,如学生游客的旅行目的地、中国游客数量的预测、以及旅游过程中所需的批判性思维能力等。

【推荐1】All young people dream of travelling the world. They are excited and very eager to see new sights. However, they have little idea how they would really do it if given the chances. Because their knowledge of geography is quite limited, they seldom know much about the places they wish to visit or how they would get there.

Already hundreds of thousands of Chinese student tourists are visiting these places — Wuyi, Lhasa, Lijiang, Dali, Vientiane and Phnom Penh. Indeed, these students will soon be the most travelled generation in China’s long history. The World Tourist Organization predicts that a quarter of a century from now the number of Chinese tourists going abroad will be twenty times what it is today. The largest percentage of these tourists will visit Southeast Asia. Not all Chinese who travel abroad will be tourists, however. More and more youths are deciding to volunteer their skills in this region, much like their peers in the Peace Corps and VSO.

Critical thinking skills required include planning for a trip and solving problems after the trip has begun. The focus is on how to read an atlas (地图集) to make travel plans and how to find ways of travelling. An atlas offers a wealth of information about geography and is one way to increase students’ awareness of their global environment. The use of an atlas especially addresses the needs of students with different visual and spatial (空间的) learning styles.

1. The main idea of the first paragraph is __________.
A.all young people wish to travel around the world
B.all young people love travelling, however, their geographical knowledge is limited
C.all young people like to learn the knowledge of geography
D.all young people are aware of the places they are going to
2. What does the World Tourist Organization predict?
A.The number of Chinese tourists going abroad will be twenty times what it is today in about ten years.
B.The number of Chinese tourists going abroad will be twenty times what it is today in about twenty five years.
C.Students will soon be the most travelled generation in China’s long history.
D.Chinese people travel abroad to relax themselves.
3. One way to increase students’ awareness of their global environment is for them to __________.
A.watch TVB.listen to radio news
C.plan a tripD.read the maps
4. What can we infer (推断) from the passage?
A.Students know nothing about how to plan a trip.
B.Southeast Asia will be the most popular place in the world.
C.Young people will be crazy about Internet travelling.
D.When we are travelling, critical thinking skills are necessary.
2024-05-25更新 | 32次组卷
阅读理解-阅读单选(约320词) | 适中 (0.65)
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文章大意:这是一篇记叙文。文章讲述了美国老奶奶Joy Ryan,在孙子的陪伴下游览美国全部63个国家公园的故事。

【推荐2】By the time Joy Ryan, a US grandma, turned 85, she had never seen the ocean or mountains. For Joy, trips to the local fishing area with her husband were about the farthest place she had ever gone, even if she loved watching the Travel Channel.

But one day Joy’s grandson, Brad Ryan, discovered that he and his grandma had a common interest in their love for traveling, when they began to visit the American great outdoors together.

Brad said, “When I learned my grandma had never seen the great wildernesses of America—deserts, mountains and oceans, I thought there was something I needed to do.” It was after taking his grandma out of Ohio on a visit to the Great Smoky Mountains National Park that he came up with the idea of visiting all the 63 US national parks with her to create inspiring memories.

Going to all the 63 US National Parks is a huge achievement even for a much younger adventurer (冒险家). Brad said his grandmother’s physical strength (体力) grew with their trips. For example, his grandma went water rafting (漂流) at 91, with class three rapids and when walking at the New River Gorge National Park in West Virginia, she broke the record by almost a decade!

It wasn’t always like this, however. Joy was so wobbly (不稳的) on her first trip, challenged by her balance. A group of college students clapped their hands when she reached the top of a path they were following.

Joy broke her age limitation (限制) and at the age of 93, she made history as the oldest living person to visit every US National Park. Joy believes it’s the mix of hopefulness, willpower, and the good health that gives her strength.

1. With whom did Joy Ryan visit all the 63 US national parks?
A.Her grandson.B.Her husband.
C.Her daughter.D.Her student.
2. What does Brad want to show by mentioning Joy Ryan’s water rafting at 91?
A.She had a love for traveling.
B.Water rafting is dangerous for the old.
C.There is no age limitation for water rafting.
D.She had developed a strong body from traveling.
3. What is Joy Ryan’s challenge on her first trip?
A.Her memory.B.Her balance.
C.Her physical strength.D.Her sense of direction.
4. Which of the following can best describe Joy Ryan?
A.Brave and hopeful.B.Humorous and outgoing.
C.Hard-working and helpful.D.Thoughtful and self-confident.
2023-11-19更新 | 174次组卷
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【推荐3】I have just arrived in a country where I don’t know the language, where I have no family roots and where I find myself all alone. It may sound frightening. But let me tell you a little secret: it is not.

When you travel abroad by yourself for whatever reason—exchange program, internship, volunteering, or simply as a tourist—a new and fascinating world will open up for you. A world you would have never been able to see if you had just stayed at home.

People from a different country are not aliens. They are simply people like you who happened to be born in another region. They have pretty much the same wishes and worries as people from your own country.

I know that you see a lot of news on TV saying terrible things people do all the time. Your family may have spent a great deal of time telling you not to trust strangers. However, when you travel alone you will realize that people are just as good as you. Everyone is just leading their lives, working, studying and having a good time with their friends. Most people will be happy to help you and get to know you.

Maybe in the past when you would need months to travel from one place to another, traveling could be expensive. Nowadays, the world is just so connected that it is perfectly possible to find cheap flights, accommodation for all budgets and cheap and quality food.

You will get lost, but it’s fine! I can’t even count how many times I didn’t know where I was going or how to find the right direction. Everything looks great on Google maps, but sometimes your phone will die or your data will end. Just calm down. Go to a store or stop someone in the street and ask! Or simply walk around and be curious.

1. Why does the author write about his own experience in Paragraph 1?
A.To encourage people to travel.B.To tell the benefits of traveling.
C.To show it is hard to travel alone.D.To introduce the topic of the passage.
2. According to Paragraph 2, we can learn that______.
A.the reasons why the author goes abroad
B.traveling abroad can open up our eyes
C.most people go abroad simply for volunteering
D.traveling abroad is better than traveling at home
3. The underlined word “aliens” in Paragraph 3 probably refers to people who ______.
A.don’t like youB.are not good looking
C.are different from youD.have the same wishes as you
4. What can we infer from the last paragraph?
A.The terrible foreign news on TV is not true.
B.There’s no need to worry too much about traveling alone.
C.People in foreign countries live a different life.
D.It is dangerous to trust strangers when traveling alone.
2018-10-08更新 | 118次组卷
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