Tiny transmitters(发射机) fixed on the backs of the blue-green bees have allowed scientists to follow the insects as they fly for miles in search of rare flowers.
Working in Panama, scientists caught 17 bees of the common species and fixed a 300 milligram radio light onto the back of each. The signals they sent out were used to follow their movements in and around the forest where they lived.
Professor Martin, from Princeton University, US, and the Max Planck Institute for Ornithology in Germany, said, “By following the radio signals, we discovered that male bees spent most of their time in small centre areas, but could take off and visit areas farther away. One male even crossed over the shipping lanes in the Panama Canal, flying at least 5km, and returned a few days later.”
Researchers have struggled to follow the movements of bees before, following bees marked with paint or using radar which doesn’t work well in forests.
“Carrying the transmitter could reduce the distance that the bees travel, but even if the flight distances we record are the shortest distances that these bees can fly, they are impressive, long-distance movements,” said Dr. Roland Kays, from New York State Museum, a co-author of the research published today in the on-line journal. “This result helps to explain how these bees’ pollination(授粉) can be so rare.” Pollination by bees and other insects is the key to the diversity and continued growth of flowers and trees in some forests.
The new study is the first to use radio transmitters to follow bees in a forest. Similar research may now be carried in temperate forests, where bees also play a vital role.
1.The main purpose of the passage is to___
A.call on people to protect the bees for the environment
B.explain why the bees fly far away in search of flowers
C.introduce a modern way to follow the bees to readers
D.encourage the public to support the scientists’ research
2.What was the problem when researchers tried to follow the bees in the past?
A. It was quite difficult to mark the bees
B. The radar itself didn’t work very well
C. The bees weren’t easy to be recognized
D. Environmental limits were hard to solve
3.What Dr. Roland Kays said implied that____
A.he didn’t expect bees could fly so long a distance
B.The transmitter didn’t have any effects on bees at all
C.He wanted to know how far bees could travel badly
D.The record was in fact as exact as he had thought
4.Researchers follow the movements of bees mainly to___
A.learn how far they can fly at most
B.discover how they affect the plants
C.correct some wrong ideas about bees
D.get to know where they enjoy living
高三英语阅读理解中等难度题
Tiny transmitters(发射机) fixed on the backs of the blue-green bees have allowed scientists to follow the insects as they fly for miles in search of rare flowers．
Working in Panama，scientists caught 17 bees of the common species and fixed a 300 milligram radio light onto the back of each．The signals they sent out were used to follow their movements in and around the forest where they lived．
Professor Martin，from Princeton University，US，and the Max Planck Institute for Ornithology in Germany，said，“By following the radio signals，we discovered that male bees spent most of their time in small centre areas，but could take off and visit areas farther away．One male even crossed over the shipping lanes in the Panama Canal，flying at least 5km，and returned a few days later．”
Researchers have struggled to follow the movements of bees before，following bees marked with paint or using radar which doesn’t work well in forests．
“Carrying the transmitter could reduce the distance that the bees travel，but even if the flight distances we record are the shortest distances that these bees can fly，they are impressive，long-distance movements，” said Dr．Roland Kays，from New York State Museum，a co-author of the research published today in the on-line journal．“This result helps to explain how these bees’ pollination(授粉) can be so rare．” Pollination by bees and other insects is the key to the diversity and continued growth of flowers and trees in some forests．
The new study is the first to use radio transmitters to follow bees in a forest．Similar research may now be carried in temperate forests，where bees also play a vital role．
1.The main purpose of the passage is to___
A． call on people to protect the bees for the environment
B． explain why the bees fly far away in search of flowers
C． introduce a modern way to follow the bees to readers
D． encourage the public to support the scientists' research
2.What was the problem when researchers tried to follow the bees in the past?
A． It was quite difficult to mark the bees
B． The radar itself didn't work very well
C． The bees weren't easy to be recognized
D． Environmental limits were hard to solve
3.What Dr．Roland Kays said implied that____
A． he didn't expect bees could fly so long a distance
B． The transmitter didn't have any effects on bees at all
C． He wanted to know how far bees could travel badly
D． The record was in fact as exact as he had thought
4.Researchers follow the movements of bees mainly to___
A． learn how far they can fly at most
B． discover how they affect the plants
C． correct some wrong ideas about bees
D． get to know where they enjoy living
高三英语阅读理解中等难度题查看答案及解析
Tiny transmitters(发射机) fixed on the backs of the blue-green bees have allowed scientists to follow the insects as they fly for miles in search of rare flowers.
Working in Panama, scientists caught 17 bees of the common species and fixed a 300 milligram radio light onto the back of each. The signals they sent out were used to follow their movements in and around the forest where they lived.
Professor Martin, from Princeton University, US, and the Max Planck Institute for Ornithology in Germany, said, “By following the radio signals, we discovered that male bees spent most of their time in small centre areas, but could take off and visit areas farther away. One male even crossed over the shipping lanes in the Panama Canal, flying at least 5km, and returned a few days later.”
Researchers have struggled to follow the movements of bees before, following bees marked with paint or using radar which doesn’t work well in forests.
“Carrying the transmitter could reduce the distance that the bees travel, but even if the flight distances we record are the shortest distances that these bees can fly, they are impressive, long-distance movements,” said Dr. Roland Kays, from New York State Museum, a co-author of the research published today in the on-line journal. “This result helps to explain how these bees’ pollination(授粉) can be so rare.” Pollination by bees and other insects is the key to the diversity and continued growth of flowers and trees in some forests.
The new study is the first to use radio transmitters to follow bees in a forest. Similar research may now be carried in temperate forests, where bees also play a vital role.
1.The main purpose of the passage is to___
A.call on people to protect the bees for the environment
B.explain why the bees fly far away in search of flowers
C.introduce a modern way to follow the bees to readers
D.encourage the public to support the scientists’ research
2.What was the problem when researchers tried to follow the bees in the past?
A. It was quite difficult to mark the bees
B. The radar itself didn’t work very well
C. The bees weren’t easy to be recognized
D. Environmental limits were hard to solve
3.What Dr. Roland Kays said implied that____
A.he didn’t expect bees could fly so long a distance
B.The transmitter didn’t have any effects on bees at all
C.He wanted to know how far bees could travel badly
D.The record was in fact as exact as he had thought
4.Researchers follow the movements of bees mainly to___
A.learn how far they can fly at most
B.discover how they affect the plants
C.correct some wrong ideas about bees
D.get to know where they enjoy living
高三英语阅读理解中等难度题查看答案及解析
Have you ever noticed tiny raised areas on the branches of a tree? These may have been insects. These small insects feed on tree sap (汁液). Insects on urban trees are notably more abundant than those on rural trees. As a result, urban trees suffer from heavy infestations (害虫横行), and are often unhealthy or die. To protect and restore urban trees’ health, we need to determine the factors that make these tree pests more successful in urban habitats.
Living organisms interact closely with their environment. The warmer, more drought-stressed trees harbor more successful pests than cooler, less drought-stressed trees. As cities and natural habitats become hotter and drier, damaging insects will become more abundant on urban trees.
Trees within urban forests are valuable economically and for the environmental sustainability (可持续性) of the region. More than half of the world’s population lives in cities. Across the globe, people are moving into cities at a faster rate than ever. Rapid growth may turn cities into places with harder conditions. Although cities are primarily made of buildings, roads, parking lots, and vehicles, there are still plants in them. The trees within a city are referred to as the urban forest. Urban forests offer very big benefits to human and environmental health. They improve air and water quality, provide habitat for wildlife, cool down temperatures and beautify our environment. They make cities livable.
However, being a city tree is not easy. Heat released by human activities is trapped in cities. As a result, temperatures in urban areas are often warmer than their surrounding rural areas. We call this urban warming or the urban heat island effect. Urban habitats are mostly made of surfaces of asphalt (沥青) and concrete. These surfaces reduce the amount of rainwater that reaches tree roots. As a result, urban forests may suffer, which can negatively affect people and the environment.
What can we do to restore urban forests? Regular irrigation when possible may help keep pest populations under control. Planting tree species that are suitable to handle heat and drought stress would also reduce the occurrence of insect pest outbreaks.
1.What makes tree pests more successful in the city than in rural areas?
A.The warmer and rainy habitat.
B.The hotter and drier habitat.
C.The cooler and drier habitat.
D.The hotter and rainy habitat.
2.Urban forests make cities livable by .
A.providing people enough clean water
B.improving the living environment
C.offering people economic benefits
D.lowering the temperatures
3.According to the text, what results in the city trees’ suffering?
A.Natural disasters.
B.Invisible forces.
C.Human activities.
D.Natural evolution.
4.What would be the best title for the text?
A.The Importance of the Urban Trees
B.How to Protect the Urban Trees
C.Urban Trees Are in Great Danger
D.Let’s Act for the Protection of Urban Trees
高三英语阅读理解中等难度题查看答案及解析
Have you ever noticed tiny raised areas on the branches of a tree? These may have been insects. These small insects feed on tree sap (汁液). Insects on urban trees are notably more abundant than those on rural trees. As a result, urban trees suffer from heavy infestations (害虫横行), and are often unhealthy or die. To protect and restore urban trees’ health, we need to determine the factors that make these tree pests more successful in urban habitats.
Living organisms interact closely with their environment. The warmer, more drought-stressed trees harbor more successful pests than cooler, less drought-stressed trees. As cities and natural habitats become hotter and drier, damaging insects will become more abundant on urban trees.
Trees within urban forests are valuable economically and for the environmental sustainability (可持续性) of the region. More than half of the world’s population lives in cities. Across the globe, people are moving into cities at a faster rate than ever. Rapid growth may turn cities into places with harder conditions. Although cities are primarily made of buildings, roads, parking lots, and vehicles, there are still plants in them. The trees within a city are referred to as the urban forest. Urban forests offer very big benefits to human and environmental health. They improve air and water quality, provide habitat for wildlife, cool down temperatures and beautify our environment. They make cities livable.
However, being a city tree is not easy. Heat released by human activities is trapped in cities. As a result, temperatures in urban areas are often warmer than their surrounding rural areas. We call this urban warming or the urban heat island effect. Urban habitats are mostly made of surfaces of asphalt (沥青) and concrete. These surfaces reduce the amount of rainwater that reaches tree roots. As a result, urban forests may suffer, which can negatively affect people and the environment.
What can we do to restore urban forests? Regular irrigation when possible may help keep pest populations under control. Planting tree species that are suitable to handle heat and drought stress would also reduce the occurrence of insect pest outbreaks.
1.What makes tree pests more successful in the city than in rural areas?
A. The warmer and rainy habitat.
B. The hotter and drier habitat.
C. The cooler and drier habitat.
D. The hotter and rainy habitat.
2.Urban forests make cities livable by .
A. providing people enough clean water
B. improving the living environment
C. offering people economic benefits
D. lowering the temperatures
3.According to the text, what results in the city trees’ suffering?
A. Natural disasters.
B. Invisible forces.
C. Human activities.
D. Natural evolution.
4.What would be the best title for the text?
A. The Importance of the Urban Trees
B. How to Protect the Urban Trees
C. Urban Trees Are in Great Danger
D. Let’s Act for the Protection of Urban Trees
高三英语阅读理解困难题查看答案及解析
语法填空
Astronauts on the International Space Station (ISS) have fixed a hole in the shell of its outer wall. The ISS is a large satellite in space 1. scientists live to do scientific experiments. The first part of it 2. (put) into space in 1998. Last week, NASA warned astronauts on the ISS that air was 3. (slow) leaking out of the station. Astronaut Alexander Gerst and five other astronauts spent a lot of time 4. (look) for the leak. Mr. Gerst eventually found it and he put his finger over the hole. Luckily, the hole was only two millimeters wide, so it was not serious, but it did need 5. (fix).
The hole was in a Russian Soyuz MS-09 spacecraft. NASA said it could have been caused 6. a small piece of space junk. The ISS travels at 7.speed of around 28,000 kph. Even a tiny object 8. (hit) it can cause a lot of damage. Flight 9. (control) in the USA and Russia worked together with the crew to repair the hole.
A NASA official said the crew on the ISS are 10. (health) and safe after the repair.
高三英语语法填空中等难度题查看答案及解析
Back in the fifteenth century, in a tiny village near Nuremberg, lived a family with eighteen children．In spite of the hopeless condition, two of the children, Albrecht Durer and Albert, had a dream．They both wanted to pursue their talent for art．After many long discussions, the two boys finally worked out an agreement．They would toss a coin．The loser would go down into the nearby mines and, with his earnings, support his brother who attended the academy．Then, when that brother who won the toss completed his studies, in four years, he would support the other brother at the academy．
Tossing a coin, Albrecht Durer won and went off to Nuremberg．Albert went down into the dangerous mines and, for the next four years, supported his brother, whose work at the academy was almost an immediate sensation（轰动）．By the time he graduated, he had earned considerable fees for his outstanding works．
When the young artist returned to his village, the Durer family held a festive dinner to celebrate Albrecht’s triumphant（胜利的）homecoming．Albrecht drank a toast to his beloved brother for the years of sacrifice that had enabled him to complete his dream．“And now, Albert, blessed brother of mine, now it is your turn．Now you can go to Nuremberg to look for your dream, and I will take care of you．”
Tears streaming down his pale face, Albert sobbed, “No．．．no．．．It is too late for me．Look．．．look at what four years in the mines have done to my hands！The bones in every finger have been broken at least once, and lately I have been suffering from arthritis（关节炎）so badly in my right hand that I cannot even hold a glass to return your toast, much less draw delicate lines with a pen or a brush．”
To show thanks to Albert for all that he had sacrificed, Albrecht Durer painstakingly drew his brother’s injured hands with palms together and thin fingers stretched skyward．He called his powerful drawing simply “Hands”, but the entire world almost immediately opened their hearts to his great masterpiece and renamed it “The Praying Hands”．The next time you see a copy of that touching creation, let it be your reminder—no one ever makes any success alone！
1.Why did the two brothers work out the agreement？
A．They were so curious as to make a joke．
B．Their family couldn’t afford the academy．
C．One of the brothers was supposed to go into mines．
D．They wanted to support the other sisters and brothers．
2.The underlined word “whose” in Para．2 refers to _____ ．
A．the Durer family’s B．the miners
C．Albert’s D．Albrecht’s
3.Which of the following statements is NOT true about Albrecht Durer？
A．He began to earn his living after graduation．
B．He did perfectly well at the academy．
C．He wanted his brother to go to the academy．
D．He created great masterpieces．
4.Which of the following is the correct order of the story？
a．Albrecht went to Nuremberg．
b．Albert supported his brother．
c．The Durer family held a festive dinner．
d．Albrecht drew his brother’s injured hands．
e．The brothers tossed a coin．
A．b, a, c, d, e B．a, e, c, d, b
C．e, a, c, b, d D．e, a, b, c, d
5.What can we learn from the story？
A．One can achieve success simply on his own．
B．Any success requires the help of others．
C．It’s other people who contribute to one’s success．
D．Nobody could succeed without good guidance．
高三英语阅读理解中等难度题查看答案及解析
29. On March 12, the students were planting trees ____ the classroom.
| A．in the back of | B．at the back of | C．to the back of | D．on the back of |
高三英语单项填空简单题查看答案及解析
The recent financial crisis into account, the Japanese boss back on the number of employees working for him.
A. taking; cuts B. was taken; cut
C. taken; cut D. to take; cutting
高三英语单项填空简单题查看答案及解析
On top of the hill______, whose style dates back to the ages of the Song Dynasty.
A. there standing a temple B. does a temple stand
C. a temple stands D. stands a temple
高三英语单项填空中等难度题查看答案及解析
Even looking back on the revolutionary changes the Internet has brought to our lives,the future of it is still beyond imagination.But what is clear is making the best use of the Internet will be of ever-greater importance to promoting economic development and social progress.
Already Chinese companies that are seizing the opportunities presented by the Internet occupy a place in global industry.The rise of e-commerce（电子商务）is particularly noticeable in China,where it is common for the majority of young people to do shopping online,which not only saves them time,hut also saves them money.
For the vast rural areas,where the majority of poverty-stricken（穷困的）people live,the growing popularity of Internet technology will hopefully help lift people out of poverty.There have been reports about how some rural villagers sell their agricultural products online and some use the Internet to get in touch with their customers,which may make it easier for them to make decisions.Still they only account for 28.6 percent of the total 618 million internet users nationwide.So much can still be done to further popularize the use of the Internet and promote e-commerce in rural areas.
Looking further ahead,the development of the Internet can strengthen the connection among different economies.No one can tell how much potential there is to be unlocked by the effective use of Internet technology to promote the manufacturing industry（制造业）and the service industry.And with government,it is not just time and cost benefits that are the potential fruits of Internet technology,because the Internet will also help promote policy-making and public services.
1.What does the underlined word "them" in Paragraph 2 refer to?
A. Chinese companies. B. Online stores.
C. Online shoppers. D. Internet users.
2.What does the example of some rural villagers show?
A. The Internet is not common in rural areas.
B. Rural villagers have less access to the Internet.
C. Rural areas have done little to popularize the Internet.
D. The Internet does contribute to economic development.
3.What benefit can government get from the use of the Internet?
A. Promoted policy-making.
B. More developed service industry.
C. Increased manufacturing industry.
D. Improved connection among economies.
高三英语阅读理解困难题查看答案及解析