A tiny clue found in ancient deposits has unlocked big secrets about Greenland’s past and future climate. Just beyond the northwest edge of the vast Greenland Ice Sheet, researchers have discovered lake mud that have survived the last ice age. The mud, and remains of common flies in it, record two interglacial periods（间冰期）in northwest Greenland.
Although researchers have long known these two periods—the early Holocene and Last Interglacial—experienced warming in the Arctic, the mix of fly species shows that Greenland was even warmer than previously thought. “As far as we know, it has never been found in Greenland. We think this is the first time anyone has reported it in ancient deposits or modern lakes there,” Axford said. “We were really surprised to see how far north it migrated (迁徙).”
This new information could help researchers better measure Greenland’s sensitivity to warming, by testing and improving models of climate and ice sheet behaviour. Those models could then improve predictions of how Greenland’s ice sheet might respond to man-made global warming. After all, Greenland covers 80 per cent of the Arctic country and holds enough ice to equal 20 feet of global sea level. “Northwest Greenland might feel really remote, but what happens to that ice sheet is going to matter to everyone in every coastal city around the world,” said Yarrow Axford, an associate professor in the team. “One of the big uncertainties in climate science is how fast the Earth changes when it gets warmer. Geology gives us an opportunity to see what happened when the Earth was warmer than today,” said Axford.
People might be surprised to see how today’s Greenland looked during the last two interglacial periods. During the Last Interglacial, global sea levels increased by 15 to 30 feet, largely due to thinning of Greenland and Antarctica’s ice sheets. However, now researchers believe northern Greenland’s ice sheet experienced stronger warming than previously thought, which could mean that Greenland is more responsible for that sea-level rise.
Finding lake deposits older than about 10,000 years, however, has been historically very difficult in Greenland. To measure these ancient temperatures, researchers look to ice cores (冰核) and lake deposits. Since ice and lake deposits form by a gradual buildup on annual layers of snow or mud, these cores contain history of the past. By looking through the layers, researchers can obtain climate clues from centuries ago.
1.Why are the remains of flies mentioned in the first two paragraphs?
A.They serve as evidence that there is still life in the Northwest Greenland.
B.They were one of the many ancient lives that were left in the Greenland mud.
C.They are indicators that Greenland was much warmer than previously thought.
D.They help the researchers realize that there was once a warm period in the Arctic.
2.The new information about Greenland is important because______________.
A.researchers have no idea how to measure Greenland’s warming speed
B.it can help researchers better predict Greenland’s response to warming
C.people should be more sensitive to the changes in the ice in Greenland
D.it is uncertain how fast the Earth changes with man-made global warming
3.Which of the following can be inferred from the passage?
A.It is easier for today’s scientists to find ancient lake deposits.
B.People are surprised at the landscape feature of Greenland today.
C.Researchers measure the changing temperatures by directly examining mud.
D.Greenland holds enough ice that might one day threaten life in coastal cities.
4.Which do you think is the best title of the passage?
A.Greenland Used to Be Much Greener
B.Earth Once Experienced Warm Periods
C.Coastal Cities Warned of Coming Disasters
D.Northwest Greenland, A Perfect Destination
高三英语阅读理解中等难度题
A tiny clue found in ancient deposits has unlocked big secrets about Greenland’s past and future climate. Just beyond the northwest edge of the vast Greenland Ice Sheet, researchers have discovered lake mud that have survived the last ice age. The mud, and remains of common flies in it, record two interglacial periods（间冰期）in northwest Greenland.
Although researchers have long known these two periods—the early Holocene and Last Interglacial—experienced warming in the Arctic, the mix of fly species shows that Greenland was even warmer than previously thought. “As far as we know, it has never been found in Greenland. We think this is the first time anyone has reported it in ancient deposits or modern lakes there,” Axford said. “We were really surprised to see how far north it migrated (迁徙).”
This new information could help researchers better measure Greenland’s sensitivity to warming, by testing and improving models of climate and ice sheet behaviour. Those models could then improve predictions of how Greenland’s ice sheet might respond to man-made global warming. After all, Greenland covers 80 per cent of the Arctic country and holds enough ice to equal 20 feet of global sea level. “Northwest Greenland might feel really remote, but what happens to that ice sheet is going to matter to everyone in every coastal city around the world,” said Yarrow Axford, an associate professor in the team. “One of the big uncertainties in climate science is how fast the Earth changes when it gets warmer. Geology gives us an opportunity to see what happened when the Earth was warmer than today,” said Axford.
People might be surprised to see how today’s Greenland looked during the last two interglacial periods. During the Last Interglacial, global sea levels increased by 15 to 30 feet, largely due to thinning of Greenland and Antarctica’s ice sheets. However, now researchers believe northern Greenland’s ice sheet experienced stronger warming than previously thought, which could mean that Greenland is more responsible for that sea-level rise.
Finding lake deposits older than about 10,000 years, however, has been historically very difficult in Greenland. To measure these ancient temperatures, researchers look to ice cores (冰核) and lake deposits. Since ice and lake deposits form by a gradual buildup on annual layers of snow or mud, these cores contain history of the past. By looking through the layers, researchers can obtain climate clues from centuries ago.
1.Why are the remains of flies mentioned in the first two paragraphs?
A.They serve as evidence that there is still life in the Northwest Greenland.
B.They were one of the many ancient lives that were left in the Greenland mud.
C.They are indicators that Greenland was much warmer than previously thought.
D.They help the researchers realize that there was once a warm period in the Arctic.
2.The new information about Greenland is important because______________.
A.researchers have no idea how to measure Greenland’s warming speed
B.it can help researchers better predict Greenland’s response to warming
C.people should be more sensitive to the changes in the ice in Greenland
D.it is uncertain how fast the Earth changes with man-made global warming
3.Which of the following can be inferred from the passage?
A.It is easier for today’s scientists to find ancient lake deposits.
B.People are surprised at the landscape feature of Greenland today.
C.Researchers measure the changing temperatures by directly examining mud.
D.Greenland holds enough ice that might one day threaten life in coastal cities.
4.Which do you think is the best title of the passage?
A.Greenland Used to Be Much Greener
B.Earth Once Experienced Warm Periods
C.Coastal Cities Warned of Coming Disasters
D.Northwest Greenland, A Perfect Destination
高三英语阅读理解中等难度题查看答案及解析
A tiny clue found in ancient deposits has unlocked big secrets about Greenland’s past and future climate. Just beyond the northwest edge of the vast Greenland Ice Sheet, researchers have discovered lake mud that have survived the last ice age. The mud, and remains of common flies in it, record two interglacial periods（间冰期）in northwest Greenland.
Although researchers have long known these two periods—the early Holocene and Last Interglacial—experienced warming in the Arctic, the mix of fly species shows that Greenland was even warmer than previously thought. “As far as we know, it has never been found in Greenland. We think this is the first time anyone has reported it in ancient deposits or modern lakes there,” Axford said. “We were really surprised to see how far north it migrated (迁徙).”
This new information could help researchers better measure Greenland’s sensitivity to warming, by testing and improving models of climate and ice sheet behaviour. Those models could then improve predictions of how Greenland’s ice sheet might respond to man-made global warming. After all, Greenland covers 80 per cent of the Arctic country and holds enough ice to equal 20 feet of global sea level. “Northwest Greenland might feel really remote, but what happens to that ice sheet is going to matter to everyone in every coastal city around the world,” said Yarrow Axford, an associate professor in the team. “One of the big uncertainties in climate science is how fast the Earth changes when it gets warmer. Geology gives us an opportunity to see what happened when the Earth was warmer than today,” said Axford.
People might be surprised to see how today’s Greenland looked during the last two interglacial periods. During the Last Interglacial, global sea levels increased by 15 to 30 feet, largely due to thinning of Greenland and Antarctica’s ice sheets. However, now researchers believe northern Greenland’s ice sheet experienced stronger warming than previously thought, which could mean that Greenland is more responsible for that sea-level rise.
Finding lake deposits older than about 10,000 years, however, has been historically very difficult in Greenland. To measure these ancient temperatures, researchers look to ice cores ( 冰 核 ) and lake deposits. Since ice and lake deposits form by a gradual buildup on annual layers of snow or mud, these cores contain history of the past. By looking through the layers, researchers can obtain climate clues from centuries ago.
1.Why are the remains of flies mentioned in the first two paragraphs?
A.They serve as evidence that there is still life in the Northwest Greenland.
B.They were one of the many ancient lives that were left in the Greenland mud.
C.They are indicators that Greenland was much warmer than previously thought.
D.They help the researchers realize that there was once a warm period in the Arctic.
2.Which of the following can be inferred from the passage?
A.It is easier for today’s scientists to find ancient lake deposits.
B.People are surprised at the landscape feature of Greenland today.
C.Researchers measure the changing temperatures by directly examining mud.
D.Greenland holds enough ice that might one day threaten life in coastal cities.
3.Which do you think is the best title of the passage?
A.Greenland Used to Be Much Greener
B.Earth Once Experienced Warm Periods
C.Coastal Cities Warned of Coming Disasters
D.Northwest Greenland, A Perfect Destination
高三英语阅读理解中等难度题查看答案及解析
This business company which was ________ in 1724 has developed into a big one.
A．found B．to find C．founded D．being founded
高三英语单项填空中等难度题查看答案及解析
English teacher and Internet entrepreneur (企业家) Jack Ma founded Alibaba 18years ago in his tiny apartment in Hangzhou, China. Now, Ma has become the richest man in China. Every current entrepreneur and business leader should learn from how a Chinese English teacher became such a great success.
Start here, go anywhere. Recognizing the importance of English, young Ma would ride his bike to a nearby hotel and guide foreigners around the city just to learn and practice the language.
He has vision and he had help. Ma saw the Internet’s enormous potential to bridge businesses across China’s huge population early on. So he and his wife brought 17 friends together and pooled ＄60,000 to start the company. That formed the basis for the company’s dynamic partnership structure and unique culture.
Big problems lead to big opportunities. China’s lack of infrastructure (基础设施) has always been a problem for the enormous nation’s small businesses. Alibaba solved that and now accounts for 80% of the country’s e-commerce.
Innovation comes from unique individuals who think and act differently. Everyone talks about changing the world and making tones of money these days, but those who actually do it are exceptional individuals with breakthrough ideas, uncommon vision and a passion to do great work.
What’s is in a name? Jack Ma was sitting in a San Francisco coffee shop when he thought of how Alibaba overheard the secret of the 40 thieves in his story —“open sesame (芝麻)”—and unlocked untold riches. He simply wanted his company to have a global and interesting name, and realized that Alibaba was a story known across the world. As an additional bonus, Ma said that because it begins with A, it also appears at the top of lists.
1.The article is about ______.
A. Jack Ma’s life story B. the secrets to Jack Ma’s success
C. Jack Ma’s business team D. the development of Alibaba
2.According to the article, the first step in Jack Ma’s success came from ______.
A. mastering the English language B. the unique culture of his partnership
C. innovation from his team D. the foundation of his company
3.Jack Ma named his company after Alibaba because ______.
A. it begins with an A
B. his team worked out such a good idea.
C. inspiration came to him when he was listening to a story.
D. it came from a story that is well-known around the world.
4.Which of the following words best describe Jack Ma?
A. Ambitious and creative B. Humorous and innovative
C. Strict and intelligent D. Passionate and considerate
高三英语阅读理解困难题查看答案及解析
What made the archeologist feel excited was that he finally found two ancient vases in ______ seemed to him to be a king’s bedroom.
A. that B. what C. where D. which
高三英语单项填空中等难度题查看答案及解析
Tuvalu, a tiny country in the Pacific Ocean, has asked for help as it fears it will be swallowed up by the sea. Storms and huge waves are a constant threat and none of Tuvalu’s nine little islands is more than five meters above sea level. Salt water is already entering the country’s drinking water supply, as well as damaging plants that produce fruit and vegetable. 1.
2. Venice(威尼斯), a historic city in Italy best known for its canals, has sunk about 24 cm over the past 100 years. Experts say that it will have sunk another 20 cm-50 cm by 2050. A century ago, St. Mark’s Square, the lowest point in the city, was flooded about nine times a year. Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands, Tuvalu’s rising sea level is caused by global warming.
The average global temperature has increased by almost 0.5 centigrade degree over the past century; scientists expect it to rise by extra 1-3 degrees over the next 100 years.
Warmer weather makes glaciers(冰川)melt, adding more water to the ocean. The warmer temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10 cm-25 cm in the last 100 years.
3.
Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO2. This adds to the power of the greenhouse effect, making the planet even warmer.
Many scientists believe that, if the warming is not stopped, there will be huge climate change. 4.
5. , the sea will swallow up millions of homes and the world will be flooded with "climate refugees" looking for somewhere to live.
A. The main cause of global warming is human pollution.
B. Should this come true
C. Without urgent help, the country’s days are numbered.
D. But Tuvalu is not the first place to face sinking into the sea.
E. The sea level could rise by one meter this century.
F. People face a lot of pollution.
G. Much has been done about our planet.
高三英语其他题中等难度题查看答案及解析
TUVALU, a tiny country in the Pacific Ocean, has asked for help as it fears it will be swallowed up by the sea.Storms and huge waves are a constant threat and none of Tuvalu’s nine little islands is more than five meters above sea level, Salt water is already entering the country’s drinking water supply, as well as damaging plants that produce fruit and vegetable.__51___
___52___. Venice, a historic city in Italy best known for its canals, has sunk about 24 cm over the past 100 years. Experts say that it will have sunk another 20-50cm by 2050. A century ago, St. Mark’s Square, the lowest point in the city, floodedd about nine times a year, Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands, Tuvalu’s rising sea level is caused by global warming.
The average global temperature has increased by almost 0.5 centigrade degrees over the past century; scientists expect it to rise by extra 1-3 degrees over the next 100 years.
Warmer weather makes glaciersmelt, adding more water to the ocean. The warmer temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10－25 cm in the last 100 years.
___53___. Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO2. This adds to the power of the greenhouse effect, making the planet even warmer.
Many scientists believe that, if the warming is not stopped, there will be huge climate changes.___54____.____55____, the sea will swallow up millions of homes and the world will be flooded with “climate refugees” looking for somewhere to live.
| A．The main cause of global warming is human pollution |
| B．Should this come true |
| C．Without urgent help, the country’s days are numbered. |
| D．But Tuvalu is not the first place to face sinking into the sea |
E. The sea level could rise by one meter this century.
F. people face a lot of pollution.
G. much has been done about our planet .
高三英语信息匹配困难题查看答案及解析
TUVALU, a tiny country in the Pacific Ocean, has asked for help as it will be swallowed up by the sea.
Storms and huge waves are a constant threat and none of Tuvalu’s nine little islands is more than five meters above sea level. Salt water is already entering the country’s drinking water supply, as well as damaging plants that produce fruit and vegetable. Without urgent help, the country’s days are numbered.
But Tuvalu is not the first place to face sinking into the sea. Venice, a historic city in Italy best known for its canals, has sunk about 24cm over the past 100 years. Experts say that it will have sunk another 20-50cm by 2050. A century ago, St. Mark’s Square, the lowest point city, flooded about nine times a year. Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands, global warming causes Tuvalu’s rising sea level.
The average global temperature has increased by almost 0.5 centigrade degrees over the past century; scientists expect it rise by extra 1-3 degrees over the next 100 years.
Warmer weather makes glaciers (冰川) melt, and adds more water to the ocean. The warmer temperatures also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about 10-25 cm in the last 100 years.
The main cause of global warming is human pollution. Through burning coal, oil and gas, people have been increasing the greenhouse gases in the atmosphere, such as CO2. This adds to the power of the greenhouse effect, making the planet even warmer.
Many scientists believe that, if the warming is not stopped, there will be huge climate changes. The sea level could rise by one meter this century.
Should this come true, the sea will swallow up millions of homes and the world will be flooded with “climate refugees” looking for somewhere to live.
68. We can infer from the second paragraph that .
A. Tuvalu is in danger of being swallowed up by the sea
B. all Tuvalu’s islands are about five meters above the sea level
C. drinking water in Tuvalu has been destroyed
D. Tuvalu is often flooded by storms and waves
69. Put the following events in the right order.
a. Glaciers began to melt. b. People burn coal ,oil and gas.
c. The greenhouse effect is growing. d. The earth is getting warmer and warmer
e. The sea level is rising. f. More CO2 is produced.
g. Many places are sinking into the sea.
A. d,f,b,c,a,e,g B. b,f,c,d,e,a,g C. f,c,b,d,a,e,g D. b,f,c,d,a,e,g
70. What does “climate refugees” mean?
A. Climate changes. B. Climate effect.
C. People forced away from their homeland by climate.
D. Rare animals moving from place to place for climate changes.
71 Which of the following is False according to the passage?
A. The sea level has risen about 10-25 cm in the last 100 years for warmer temperatures.
B. The average global temperature has risen by 1-3 centigrade degrees over the past 100 years.
C. The warmer temperature causes the sea level to rise.
D. There will be huge climate changes unless the warming is stopped
高三英语阅读理解简单题查看答案及解析
His work has received only a tiny mention in the newspaper; actually he__________more attention.
A.reserves B.deserves C.observes D.preserves
高三英语单项填空中等难度题查看答案及解析
China, which takes pride in inventions in ancient times, has once again demonstrated its 1. (able) to change the world with its “new four great inventions”: high-speed railways, electronic payments, 2. (share) bicycles and online shopping. The “new four great inventions” are all related 3. China’s high-tech innovation(创新), which has improved the quality of people’s lives. “My wallet is no longer in use. I can buy and eat anything 4. I want simply with a tap of my phone,” said Lin Jinlong, 5. overseas Chinese student from Cambodia, 6. (add) that “even pancake sellers are using Alipay (mobile payment). We can also order food at home, which is super convenient. If I 7. (be) at home in Cambodia, I would have to go outdoors.”
The bikes themselves are not new, but the operating model of bike-sharing is based on satellite navigation system, mobile payment, big data and other high technologies. It is 8. (increase) clear that China is innovating and no longer copying Western ideas. This is partly because China skipped over the PC age and went directly to mobile. China has the 9. (large) mobile use in the world.
In terms of the “new four great inventions”, Charlie Dai, principal analyst of American market research company Forrester, said, “These products and services 10. (improve) the customer experience so far, improving national and global economy at the same time”.
高三英语七选五中等难度题查看答案及解析