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Probably you have seen photos of the Grand Canyon（峡谷）, the great valley in the desert country of Arizona. But you must go there yourself to feel its true size and beauty. The Grand Canyon is one of the greatest natural wonders of the world
The Colorado River formed the Grand Canyon over millions of years. Slowly, the river cut down through hard rock. At the same time, the land was rising. Today the canyon is 1.5 kilometers and 445 kilometers long. The oldest rocks at the bottom of the canyon are more than 1 billion years old. The width varies from about 200 meters to 29 kilometers across. The rim or top of the canyon is about 2,300 meters above sea level on the South Rim, and about 3,000 meters on the other side. As a result, there are different kinds of plants and animals on opposite sides of the canyon. The South Rim is dry desert country. The North Rim has tall forests.
The canyon looks different at different times of day, and in different seasons and weather. At sunrise and sunset the red, gold, brown and orange colors of the rocks are especially clear and bright. In winter, the canyon is partly covered with snow.
The view from the South Rim of the Grand Canyon is the best. Most visitors come here and stay in campgrounds or hotels. Every point along the canyon’s edge offers a different view.
The North rim of the Canyon is quieter. It takes all day to drive there from the South Rim because there is only one bridge across the Colorado River. On the way, you go through Navado Indian lands, and a colorful pink desert called “The Painted Desert”.
1.The best way to feel the true beauty of the Grand Canyon is to________.
A．see its photographs
B．listen to the report about it
C．watch its introduction on TV
D．go there yourself and visit it
2. The scene of the canyon is ________.
A．various depending on different time and places
B．almost the same
C．various depending on different time
D．various depending on different places
3. If you want to visit the North Rim from the South Rim, you________.
A．can go there in many direction
B．won’t spend much time on the way
C．can visit The Painted Desert on the way
D．needn’t go across any bridges
4. If you want to have a visit to the Grand Canyon, you’d better go to _______.
A．the North Rim
B．the South Rim
C．the bottom
D．Navado Indian Lands
高三英语阅读理解中等难度题查看答案及解析
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The Grand Canyon(大峡谷)Helicopter Tour
You'11 discover the natural beauty of the Grand Canyon as your helicopter flies to the west edge，passing over Lake Las Vegas，Lake Mead and the Hoover Dam．During the flight，you can listen to a recorded introduction to the Grand Canyon and its surroundings via headphones．At noon，you’11 land for an unforgettable champagne picnic，3，200 feet below the edge．While you share a bottle of champagne，your pilot and guide will be happy to answer any questions you may have．Your flight ends with a low-level pass over the famous Las Vegas Strip．On landing，a comfortable car is waiting to bring you back to your hotel．
Each helicopter carries a maximum of 6 people including your pilot．For a roomier experience，upgrade your flight to an EC-130 helicopter which provides larger leg room and can accommodate more weight per seat．See Additional Info for details on weight restrictions．
Pricing Information
●Services included：45-minute(approx)flight each way，hotel pickup and drop-off by 1imousine，1unch．
●Our price is constantly updated．Click to check pricing & availability on your preferred travel date．
Additional Information
●The maximum weight per passenger to ride in an A-Star helicopter is 2751bs．If passengers weigh in between 2751bs and 3001bs，you will be required to upgrade to the EC-130．
●Pickup is available from selected Las Vegas hotels．You must contact the local travel agency to fix your pickup time．
●All flight times are approximate and might be influenced by weather conditions．
Traveler Review
This is an absolute must do．The view of the Grand Canyon at his height was absolutely amazing! Our pilot was funny，knowledgeable and a great guide．All the staff from booking to check-in and helicopter departure were fantastic．I would recommend this tour to everyone．
1.Where will you have your lunch during the tour?
A. In the hotel． B. On the helicopter．
C. In the Canyon． D. On the Las Vegas Strip．
2.In what condition will you be advised to take an EC-130 flight?
A. You weigh less than 2751bs．
B. You travel with over 6 people．
C. You want to spend less money．
D. You want to travel more comfortably．
3.What should you do to be picked up from the hotel?
A. Turn to your guide． B. Call the travel agency．
C. Book in advance． D. Pay an extra charge．
4.What’s the purpose of the last part of the text?
A. To praise the pilot and staff．
B. To describe the view of the tour．
C. To encourage potential consumers．
D. To introduce the writer of the review．
高三英语阅读理解中等难度题查看答案及解析
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How the Grand Canyon (大峡谷) was created remains one of the geology’s greatest mysteries. Some evidence suggests that the process was a gradual one in which the Colorado River (which runs through the canyon) slowly cut deeper and deeper into the ground over millions of years. But volcanic rock samples taken from the canyon now suggest that the canyon was down-cut instead.
Down-cutting is when a flood of water rushes over a landscape (地形) with enough force to cut deeply into the ground and leaves behind a canyon. Such a flood is usually released when a natural or man-made dam (堤坝) bursts.
Robert Webb, a research geologist, says natural dams seem to have formed and broken across the Colorado River several times during the last million years. The dams were built when lava(熔岩) from the eruptions of nearby volcanoes flowed into the river. The lava hardened into hard rocks and blocked the river, causing it to back up and form a lake. Each time the lake grew so huge that it broke the rock dam, releasing a flash flood
that furthered the down-cutting process and deepened the canyon.Down-cutting is not just an earthly event. Satellite photos sent back from Mars suggest th
at the process has happened there, too, say many other researchers.The photos, taken by the Mars Global Surveyor, indicate that an enormous lake existed on Mars 3.5 billion years ago. The lake spilled into a large nearby hole. One edge of the hole broke, releasing a flash flood that quickly carved out a grand canyon.
The existence of down-cutting on Mars is just one more piece of evidence that the cold, dry planet was
once warm and wet.1.In the past, deep canyons were believed to have formed _______.
A. as a result of a sudden break of volcanoes
B. due to river flows over millions of years
C. owing to the burst of artificial dams
D. thanks to our ancestors’ creative work
2.According to the passage, which of the following statements is TURE?
A. Several volcanoes broke out on Mars directly creating grand canyons.
B. Several great lakes existed on the upper parts of the Colorado River.
C. People built high dams on the upper parts of the Colorado River.
D. The Colorado River crossed the Grand Canyon to form down-cutting.
3.From the last three paragraphs we learn that _______.
A. there are great lakes on Mars
B. there are active volcanoes on Mars
C. there might be cities on Mars
D. there might be life on Mars
4.The passage can be titled as _______.
A. Lakes on Earth and Mars
B. The Cause of Lake Formation
C. The Force of Dam Breaking
D. Canyons—Results of Flood Cutting
高三英语阅读理解中等难度题查看答案及解析
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Fifteen-year-old David had spent six months planning a hike to the bottom of the Grand Canyon (大峡谷)with his classmates. No one could have known it would end in tragedy.
When the group arrived at the starting point for the hike, they found out there was a problem with their permit. To solve it, the five boys and three leaders walked back up to the ranger station (护林站）一only to find out it was closed.
When the boys got moving, they'd already drunk most of their water. In the burning sun, temperatures reached a 115°F. Even the leaders were having trouble walking on. But the group finally made it down to the bottom of the Grand Canyon. Heat evil was occurring. "My son made it about 100 yards from the river and then dropped," says his father, Robin. Two boys of them raced to the river to get him water.
When the boys arrived, the last rafting （筏运) trip of the day was passing by. As luck would have it, among the waiting riders were a few doctors. They rushed to give David first aid before going for help. But it was too late. David passed away from the heat evil.
It's been 21 years since the boy's death, and hiking still holds a strong memory of David for his family. The summer before the tragedy, his father had a long time to devote to his family. David and his dad spent the summer hiking all over the High Uintas, where snow-topped peaks reflect tower over glacier(冰川) formed lakes.
The photo Robin took of Christmas Meadows there won the Reader's Digest "From Sea to Shining Sea" photo contest and appeared on the July 2017 magazine cover. To Robin, it isn't just a fascinating landscape--it's also a powerful reminder of his late son.
1.How many people does David's group consist of?.
A. 11 B. 10
C. 9 . D. 8
2.What does the sentence "Even the leaders were having trouble walking on." in Paragraph 3 suggest?
A. The leaders were taller and older.
B. The leaders covered shorter distance.
C. The leaders were healthier and stronger.
D. The trouble the group faced was so great as to be beyond expectation.
3.Where did Robin take the photo which won the Reader's Digest "From Sea to Shining Sea" photo contest？
A. On the High Uintas. B. Where David had been to.
C. In the Grand Canyon. D. In the Christmas Meadows.
4.What does the passage intend to tell us mainly?
A. Take enough water with you when hiking.
B. Don't hike to the Grand Canyon in too hot weather.
C. Robin still misses his late son, David.
D. Doctors can't necessarily succeed in saving every patient.
高三英语阅读理解中等难度题查看答案及解析
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Experience the newly opened Grand Canyon(大峡谷) West Skywalk in Colorado. Departing from Grand Canyon South Rim by Airplane to Grand Canyon's West Rim, you will land and take a ground tour to the Skywalk! Walk on air for 70' feet over the edge of Grand Canyon West.
This Skywalk has been open since March 28, 2007. Daily visitorship to the Skywalk has been over 4,000 people. Please be patient to enjoy your moment on the Skywalk.
After you have experienced the one and only Grand Canyon Skywalk Glass Bridge, you will return to the Grand Canyon West Airport and take your Airplane for a flight back to the South Rim of the Grand Canyon. This is a tour never to be forgotten as you will have walked on air over the Grand Canyon.
Tour Itinerary (行程)
Tour Duration
5.7 Hours
The Grand Indian Adventure Skywalk
Flight from Grand Canyon South Rim to Grand Canyon West
1 Hour
Experience an eagle-eye view of the Grand Canyon as you make your way to Grand Canyon West.
Lunch/Light Meal at Guano Point at Grand Canyon West
2 Hours
You will be taken by bus to Guano Point with breathtaking views of the western part of the Grand Canyon where the Colorado River makes it way into Lake Mead. Every table for Lunch has a view.
Walk on the World Renowned Skywalk
1.5 Hours
Finally, you will board your bus to Eagle Point, home of the Grand Canyon Skywalk. Now it is time for you to walk on air for 70' feet over the Grand Canyon.
Flight Back to Grand Canyon South Rim
1.2 Hours
After time on the Skywalk, you will return to the Grand Canyon West Airport and return to Grand Canyon South Rim in time for dinner and sunset.
1.This advertisement is for ___________.
A．Grant Canyon West B．Grant Canyon South
C．Grant Canyon D．the Skywalk
2.The package fee does NOT cover the cost of __________.
3.the Grand Canyon Skywalk Bridge is made of glass because ________.
A．it looks stronger B．it is cheaper to build
C．it looks more beautiful D．it gives you a better view
4.According to the Tour Itinerary, the route is __________.
A．South Rim→Guano Point →West Airport→Eagle Point → West Airport →South Rim
B．South Rim→West Airport →Guano Point→Eagle Point→West Airport →South Rim
C．South Rim→West Airport →Eagle Point→Guano Point→West Airport →South Rim
D．South Rim →West Airport→Eagle Point→West Airport→Guano Point →South Rim
高三英语阅读理解简单题查看答案及解析
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Experience the newly opened Grand Canyon (大峡谷) West Skywalk in Colorado. Departing from Grand Canyon's South Rim by Airplane to Grand Canyon's West Rim, you will land and take a ground tour to the Skywalk! Walk on air for 70 feet over the edge of Grand Canyon West.
This Skywalk has been open since March 28, 2007. Daily visitorship to the Skywalk has been over 4,000 people. Please be patient to enjoy your moment on the Skywalk.
After you have experienced the one and only Grand Canyon Skywalk Glass Bridge, you will return to the Grand Canyon West Airport and take your Airplane for a flight back to the South Rim of the Canyon. This is a tour never to be forgotten as you will have walked on air over the Grand Canyon.
Tour Itinerary (行程)
Tour Duration
5.7 Hours
The Grand Canyon Adventure Skywalk
Flight from Grand Canyon
South Rim to Grand Canyon
West
1 Hour
Experience a bird's-eye view of the Grand
Canyon as you make your way to Grand
Canyon West.
Light Lunch at Guano Point
at Grand Canyon West
2 Hours
You'll be taken by bus to Guano Point with breathtaking views of the western part of the Grand Canyon where the Calorado River makes its way into Lake Mood. Every table for lunch has a view.
Walk on the World
Famous Skywalk
1.5 Hours
Finally you'll board your bus to Eagle Point, home of the Grand Canyon Skywalk. Now it is time for you to walk on air for 70 feet over the Grand Canyon.
Flight Back to Grand
Canyon South Rim
1.2 Hours
After time on the Skywalk, you'll return to the Grand Canyon West Airport and
return to Grand Canyon South Rim in time
for dinner and sunset.
1.This advertisement is for ____.
A. Grand Canyon West B. the Skywalk
C. Grand Canyon D. Grand Canyon South
2.The package fee does NOT cover the cost of ____.
3.The Grand Canyon Skywalk Bridge is made of glass because ____.
A. it looks stranger
B. it is cheaper to build
C. it gives you a better view
D. it looks more beautiful
4.According to the Tour Itinerary, the route is ____.
A. South Rim→West Airport→Guano Point→Eagle Point→West Airport→South Rim
B. South Rim→Guano Point→West Airport→Eagle Point→West Airport→South Rim
C. South Rim→West Airport→Eagle Point→Guano Point→West Airport→South Rim
D. South Rim→West Airport→Eagle Point→West Airport→Guano Point→South Rim
高三英语阅读理解中等难度题查看答案及解析
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Experience the newly opened Grand Canyon (大峡谷) West Skywalk in Colorado. Departing from Grand Canyon’s South Rim by Airplane to Grand Canyon’s West Rim, you will land and take a ground tour to the Skywalk! Walk on air for 70 feet over the edge of Grand Canyon West.
This Skywalk has been open since March 28, 2007. Daily visitorship to the Skywalk has been over 4,000 people. Please be patient to enjoy your moment on the Skywalk.
After you have experienced the one and only Grand Canyon Skywalk Glass Bridge, you will return to the Grand Canyon West Airport and take your Airplane for a flight back to the South Rim of the Canyon. This is a tour never to be forgotten as you will have walked on air over the Grand Canyon.
Tour Itinerary (行程)
Tour Duration
5.7 Hours
The Grand Canyon Adventure Skywalk
Flight from Grand Canyon South Rim to Grand Canyon West
1 Hour
Experience a bird’s-eye view of the Grand Canyon as you make your way to Grand Canyon West.
Light Lunch at Guano Point at Grand Canyon West
2 Hours
You’ll be taken by bus to Guano Point with breathtaking views of the western part of the Grand Canyon where the Calorado River makes its way into Lake Mood. Every table for lunch has a view.
Walk on the World Famous Skywalk
1.5 Hours
Finally you’ll board your bus to Eagle Point, home of the Grand Canyon Skywalk. Now it is time for you to walk on air for 70 feet over the Grand Canyon.
Flight Back to Grand Canyon South Rim
1.2 Hours
After time on the Skywalk, you’ll return to the Grand Canyon West Airport and return to Grand Canyon South Rim in time for dinner and sunset.
1.This advertisement is for __________.
A. Grand Canyon West B. the Skywalk
C. Grand Canyon D. Grand Canyon South
2.The package fee does NOT cover the cost of _______.
3.The Grand Canyon Skywalk Bridge is made of glass because ______.
A. it looks stranger B. it is cheaper to build
C. it looks more beautiful D. it gives you a better view
4.According to the Tour Itinerary, the route is ______.
A. South Rim →Guano Point →West Airport →Eagle Point →West Airport →South Rim
B. South Rim →West Airport →Guano Point →Eagle Point →West Airport →South Rim
C. South Rim →West Airport →Eagle Point →Guano Point →West Airport →South Rim
D. South Rim →West Airport →Eagle Point →West Airport →Guano Point →South Rim
高三英语阅读理解中等难度题查看答案及解析
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Experience the newly opened Grand Canyon(大峡谷)West Skywalk in Colorado.Departing from Grand Canyon’s South Rim by Airplane to Grand Canyon’s West Rim,you will land and take a ground tour to the Skywalk!Walk on air for 70 feet over the edge of Grand Canyon West.
This Skywalk has been open since March 28,2007.Daily visitorship to the Skywalk has been over 4000 people.Please be patient to enjoy your moment on the Skywalk.
After you have experienced the one and only Grand Canyon Skywalk Glass Bridge,you will return to the Grand Canyon West Airport and take your Airplane for a flight back to the South Rim of the Canyon.This is a tour never to be forgotten as you will have walked on air over the Grand Canyon.
Tour Itinerary(行程)
Tour Duration
5.7 Hour
The Ground Canyon Adventure Skywalk
Flight from Grand Canyon South Rim to Grand Canyon West
1 Hour
Experience a bird’s-eye view of the Grand Canyon as you make your way to Grand Canyon West.
Light Lunch at Guano Point at Grand Canyon West
2 Hours
You will be taken by bus to Guano Point with breathtaking views of the western part of the Grand Canyon where the Colorado River makes its way into Lake Mead.Every table for lunch has a view.
Walk on the World Famous Skywalk
1.5 Hour s
Finally you will board your bus to Eagle Point,home of the Grand Canyon Skywalk.Now it is time for you to walk on air for 70 feet over the Grand Canyon.
Fight Back to Grand Canyon South Rim
1.2 Hours
After time on the Skywalk,you will return to the Grand Canyon West Airport and return to Grand Canyon South Rim in time for dinner and sunset.
1.This advertisement is for_______.
A.Grand Canyon West B.Grand Canyon South
C.Grand Canyon D.the Skywalk
2.The package fee does NOT cover the cost of_______.
3.The Grand Canyon Skywalk Bridge is made of glass because_______.
A.it looks stronger B.it is cheaper to build
C.it looks more beautiful D.it gives you a better view
4.According to the Tour Itinerary,the route is_______.
A.South Rim→Guano Point→West Airport→Eagle Point→West Airport→South Rim
B.South Rim→West Airport→Guano Point→Eagle Point→West Airport→South Rim
C.South Rim→West Airport→Eagle Point→Guano Point→West Airport→South Rim
South Rim→West Airport→Eagle Point→West Airport→Guano Point→South Rim
高三英语阅读理解中等难度题查看答案及解析
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Experience the newly opened Grand Canyon（大峡谷）West Skywalk in Colorado．Departing from Grand Canyon's South Rim by Airplane to Grand Canyon's West Rim, you will land and take a ground tour to the Skywalk! Walk on air for 70 feet over the edge of Grand Canyon West．
This Skywalk has been open since March 28, 2007．Daily visitorship to the Skywalk has been over 4,000 people．Please be patient to enjoy your moment on the Skywalk．
After you have experienced the one and only Grand Canyon Skywalk Glass Bridge, you will return to the Grand Canyon West Airport and take your Airplane for a flight back to the South Rim of the Canyon．This is a tour never to be forgotten as you will have walked on air over the Grand Canyon．
Tour Itinerary（行程）
1.This advertisement is for ____．
A． Grand Canyon West
B． the Skywalk
C． Grand Canyon
D． Grand Canyon South
2.The package fee does NOT cover the cost of ____．
A．
B．
C．
D．
3.The Grand Canyon Skywalk Bridge is made of glass because ____．
A． it looks stranger
B． it is cheaper to build
C． it gives you a better view
D． it looks more beautiful
4.According to the Tour Itinerary, the route is ____．
A． South Rim→West Airport→Guano Point→Eagle Point→West Airport→South Rim
B． South Rim→Guano Point→West Airport→Eagle Point→West Airport→South Rim
C． South Rim→West Airport→Eagle Point→Guano Point→West Airport→South Rim
D． South Rim→West Airport→Eagle Point→West Airport→Guano Point→South Rim
高三英语阅读理解中等难度题查看答案及解析
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Most of the students have hardly ever been to the Grand Canyon, __________?
A．haven’t they
B．have they
C．aren’t they
D．are they
高三英语单项填空简单题查看答案及解析
that furthered the down-cutting process and deepened the canyon.
at the process has happened there, too, say many other researchers.