The group in size over the past few years．A．d...

The group       in size over the past few years．

A．double         B．was doubling    C．has doubled       D．is doubled

高三英语单项填空简单题查看答案及解析

阅读理解。

There has been a dramatic increase in the number of natural disasters over the past few years, and it is assumed that global warming and climate change could cause even more disasters in the future. Some of the world’s leading cities are facing disasters like floods and heat waves.

London

London’s flood defences are getting older. Since 1982, the Thames Barrier(水闸)has protected the city from the threat of flooding, but it was only designed to last until 2030 and close once every two or three years. About 26 years later the barrier now closes five or six times a year and according to Environment Agency predictions, by 2050 the barrier will be closed on almost every tide if the problem is not addressed.

There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London’s flood risk area, so large scale flooding would be disastrous.

Paris

Over a six week period in July and August 2003, more than 1 1,400—mainly elderly people—died in France from dehydration(脱水)and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity(强度)are expected every seven years by 2050, so what can be done to make sure such a disaster does not happen again?

One solution is to have air-conditioners installed in elderly care homes. But this is considered a short-term solution, as the increase in demand for electricity also increases carbon emissions(排放).

In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower,” which uses a covering of bamboo to act as a natural air-conditioner.

Shanghai

Shanghai is the fastest growing city on Earth. It has a population of 18 million and is only 4 meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.

An estimated 250，000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China relies heavily on coal—fired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.

1.What problem should be settled now in London?

A．How to protect the city’s property

B．Where to build its flood defences

C．How to use the Thames Barrier to protect the city

D．How to improve the function of the old flood defences

2.Which of the following measures can’t solve the heat wave disaster in Paris?

A．Putting up new types of buildings with a covering of bamboo

B．Having air-conditioners installed in elderly care homes

C．Forbidding the city to build“Flower Tower”

D．Encouraging architects to design new types of buildings

3.The major threats to Shanghai are　　　　　　　 ．

A．increasing population and coal-fired power stations

B．rising sea levels and typhoons

C．extremely high temperature and rising sea levels

D．extra demands on energy consumption and typhoons

4.The purpose of the passage is　　　　 ．

A．to tell us how to protect the big cities

B．to give advice on how to defend natural disasters

C．to explain what causes flood and heat waves

D．to warn us of the increasing natural disasters in big cities

5.Which of the following would be the best title for the passage?

A．Big Cities Facing Big Disasters

B．Big Disasters in the Future

C．The Increase of Natural Disasters

D．Solutions to Natural Disasters

高三英语阅读理解中等难度题查看答案及解析

There has been a dramatic increase in the number of natural disasters over the past few years, and it is assumed that global warming and climate change could cause even more disasters in the future. Some of the world’s leading cities are facing disasters like floods and heat waves.

London

London’s flood defences are getting older. Since 1982, the Thames Barrier(水闸)has protected the city from the threat of flooding, but it was only designed to last until 2030 and close once every two or three years. About 26 years later the barrier now closes five or six times a year and according to Environment Agency predictions, by 2050 the barrier will be closed on almost every tide if the problem is not addressed.

There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London’s flood risk area, so large scale flooding would be disastrous.

Paris

Over a six week period in July and August 2003, more than 1 1,400—mainly elderly people—died in France from dehydration(脱水)and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity(强度)are expected every seven years by 2050, so what can be done to make sure such a disaster does not happen again?

One solution is to have air-conditioners installed in elderly care homes. But this is considered a short-term solution, as the increase in demand for electricity also increases carbon emissions(排放).

In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower,” which uses a covering of bamboo to act as a natural air-conditioner.

Shanghai

Shanghai is the fastest growing city on Earth. It has a population of 18 million and is only 4 meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.

An estimated 250，000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China relies heavily on coal—fired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.

1.What problem should be settled now in London?

A．How to protect the city’s property

B．Where to build its flood defences

C．How to use the Thames Barrier to protect the city

D．How to improve the function of the old flood defences

2.Which of the following measures can’t solve the heat wave disaster in Paris?

A．Putting up new types of buildings with a covering of bamboo

B．Having air-conditioners installed in elderly care homes

C．Forbidding the city to build“Flower Tower”

D．Encouraging architects to design new types of buildings

3.The major threats to Shanghai are________．

A．increasing population and coal-fired power stations

B．rising sea levels and typhoons

C．extremely high temperature and rising sea levels

D．extra demands on energy consumption and typhoons

4.The purpose of the passage is________．

A．to tell us how to protect the big cities

B．to give advice on how to defend natural disasters

C．to explain what causes flood and heat waves

D．to warn us of the increasing natural disasters in big cities

5.Which of the following would be the best title for the passage?

A．Big Cities Facing Big Disasters

B．Big Disasters in the Future

C．The Increase of Natural Disasters

D．Solutions to Natural Disasters

高三英语阅读理解中等难度题查看答案及解析

AIDS is said________the biggest challenge to both men and women in that area over the past few years.

A．that it is　 　　　　　　 B．to be

C．that it has been　     D．to have been

高三英语单项填空中等难度题查看答案及解析

China is known ______ greatly in terms of its cultural values over the past few years.

A. to change                  B. having changed      C. changing            D. to have changed

高三英语单项填空中等难度题查看答案及解析

China is known _________ greatly in terms of its cultural values over the past few years.

A．to change  B．having changed C．changing    D．to have changed

高三英语单项填空简单题查看答案及解析

China is known _________ greatly in terms of its cultural values over the past few years.

A．to change    B．having changed    C．changing   D．to have changed

高三英语单项填空中等难度题查看答案及解析

Believe it or not, the size of the human brain has become smaller over the past 20,000 years. Scientists argue over whether this means we are becoming more or less intelligent as a species.

“I’d call that a major downsizing in an evolutionary eye blink (眨眼),” John Hawks told Discover magazine.

Why is the brain becoming smaller?

There are different theories to explain it. One is that tens of thousands of years ago, before the decline began, to survive in cold and dangerous conditions, humans needed a stronger and larger body and therefore, a larger head. Also they had to chew the tough meat of rabbits, foxes and horses. As conditions improved, the brain stopped growing, according to supporters of this theory.

Another theory comes from a recent study by David Geary and Drew Bailey. They found that brain size decreased as population density(密度) increased.

“As complex societies appeared, the brain became smaller because people did not have to be as smart to stay alive.” Geary told AFP.

But smaller brain size does not necessarily mean that modern humans are less smart than their ancestors. “Modern humans simply developed different, more complex forms of intelligence,” said Brian Hare.

Hare’s studies focus on two types of great apes: chimpanzees and bonobos. Both are much like humans, but are physically quite different from one another. The bonobo has a smaller brain than the chimpanzee, and is also much less aggressive and more tolerant.

“When it comes to working out a problem,” Hare said, “chimpanzees are much less likely to accomplish it if it involves working together. Not so with bonobos.”

The smaller brain in modern humans may be evidence that we can cooperate,” Hare told the US National Public Radio.

1.Which of the following words can be used to replace the underlined word in Paragraph 2?

A. speed　　 B. increase

C. decline　　 D. change

2.We can learn from the passage that ____________.

A. the size of human brain has something to do with many factors

B. the brain size increases because of the increase of population density

C. the abilities of the bonobos and the chimpanzees are almost the same

D. modern humans can certainly do teamwork better than other species

3.According to Brian Hare, _____________.

A. bonobos are much likely to cooperate better than chimpanzees

B. chimpanzees tend to work well with others

C. modern humans are less smart their ancestors

D. small brains are certainly connected with intelligent beings

4.Which of following is probably the best title of the passage?

A. Bonobo or Chimpanzee—Which Smarter?

B. Smaller Brain--Less Intelligent?

C. Human and Animal—More Intelligent?

D. Human Brain-Why Downsizing?

高三英语阅读理解中等难度题查看答案及解析

Over the past few months huge groups of locusts(蝗虫), one of which occupied an area more than three times the size of New York City, have eaten up crops across the Home of Africa and the Middle East, leaving an estimated 20 million people at risk of famine(饥荒). The first generation's eggs are starting to hatch, and now even bigger swarms(虫群) are forming threatening. Countries from the Democratic Republic of Congo to Yemen, Iran, Pakistan and India, “representing a threat to food security and livelihoods,” says the U.N.'s Food and Agriculture Organization(FAO).

Desert locusts' populations explode when weather conditions are right. That explosion can create huge swarms that can travel great distance-more than 90 miles in a day-in search of food. Warm weather and unusually heavy rains in the Horn of Africa at the end of 2019 provided the moist(湿润的) soil necessary for hatching eggs. From there, the insects spread rapidly, resulting in one of the worst outbreaks the region has seen in more than 70 years.

A typical swarm numbering 4 billion to 8 billion locusts, can consume in one day the same　 amount of food as 35 million people. Some swarms have been so thick in parts of Kenya that they have prevented planes from taking off. Governments have used widespread aerial spraying of pesticides when available; in poorer regions, where aircraft are unavailable, soldiers battle the swarms with handheld spray pump.

The FAO has appealed for $138 million to support affected communities, If the locusts are not stopped before the next generation hatches, the impact could be terrible: the FAO guesses that an additional 25 million people across the region could lose their crops. Scientists in Kenya hope a new computer-assisted tracking program that combines satellite data with weather-mapping software will help predict the swarms next destination, buying-regional authorities enough time to prepare a response. Buy coronavirus- related travel restriction have delayed relief efforts as well as response mechanisms. The locusts have no such travel limitations.

1.The author uses many statistics in the passage to show_____

A.the disastrous consequence of the outbreaks of locusts

B.the serious conditions facing the New York City

C.the speed of swarms of locusts travelling

D.the exact number of crops consumed by locusts

2.What is Paragraph 2 mainly about?

A.The great distances locusts can travel.

B.The explosion of locusts' population.

C.The perfect conditions for hatching their eggs.

D.The result of the unusual outbreaks of locusts.

3.What does the last paragraph imply?

A.The travel restrictions may probably worsen the urgent situation.

B.It is unlikely to predict the swarms' next destination now.

C.A lot of money has been raised after the FAO's appeal

D.It's not difficult for humans to win the battle against the locust

高三英语阅读理解中等难度题查看答案及解析

The singing group was so well received that the size of audience, ___ we had expected, was well over one hundred.

A. whom               B. who          C. as          D. what

高三英语单项填空中等难度题查看答案及解析