Over the past 10 years, Huawei has invested a...

Over the past 10 years, Huawei has invested a total of 4 billion U.S. dollars in 5G, ______ it a leader in 5G chips, products and networks.

A.making B.to make C.make D.made

高三英语单项填空困难题查看答案及解析

Over the past 30 years, China has spent hundreds of billions of yuan to pull its rural population out of poverty. Now China's anti­poverty efforts pay________.

高三英语其他题简单题查看答案及解析

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

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

Over the past few years the cost of living _______________considerably.

A. has been raised      B. has risen                             C. was raising                    D. was rising

高三英语单项填空中等难度题查看答案及解析

You know how much your telephone has changed over the past 10 years? Your car will change even more than that in the next 10 years.

One of the big changes is that cars will drive themselves. Some day you may not need to drive a car. You will just tell the car where you want to go and it will drive itself.

“We definitely have the technology for it now,” says Andrew Poliak of automotive technology supplier QNX. “We expect self-driving cars to be a mainstream thing between 2020 and 2025. ”

The American company Google has been working on a self-driving automobile for years.These cars are already on the roads in the United States, mainly in California. Google cars are truly self-driving. These cars have no steering wheels (方向盘）or pedals.

Last week, police ordered one of Google’s cars to stop for driving too slowly on a public road. The car was not disobeying any law, so no one was punished. But police did speak with the operators of the vehicle. According to Google, its self-driving cars have been driven nearly 2 million kilometers. That is equal to the distance the average person drives in 90 years. So far, no Google self-driving car has gotten a traffic ticket. Some of them have been in accidents when other cars hit them.

Other companies are working on self-driving cars. Mercedes-Benz, Audi, BMW, Volvo and Toyota all have plans for such vehicles. A company called BestMile plans to operate selfdriving buses in Switzerland next spring. The buses will hold up to nine people and will be tested for two years. Mercedes-Benz is developing large self-driving trucks for long trips. These trucks use drivers to control them.

1.What Andrew Poliak said suggests that .

A. he takes pride in their technology on self-driving cars

B. he is eager to sell their technology on self-driving cars

C. he is optimistic about the development of self-driving cars

D. he feels sure people will soon have the technology for self-driving cars

2.Why did the police order one of Google’s cars to stop last week?

A. Because its speed was too low.

B. Because it disobeyed local laws.

C. Because the operators behaved badly.

D. Because there existed technological problems.

3.What caused some of Google’s self-driving cars to have accidents?

A. Lack of experience. B. High speed.

C. Other cars’ faults. D. Too much traffic.

4.What can be the best title for the text?

A. Self-driving Cars

B. How to Develop Self-driving Cars

C. The Advantages of Self-driving Cars

D. Owning A Self-driving Car Is Fashionable

高三英语阅读理解中等难度题查看答案及解析

The UN system is a major purchaser of goods and services ,_______over $4 billion a year .

高三英语单项填空困难题查看答案及解析

The time he has devoted in the past 10 years______ the disabled is now considered__________ of great value．

A．to helping; being　　　　 B．to helping; to be

C．to help; to be　　 　　 　 D．helping; being

高三英语单项填空中等难度题查看答案及解析

The time he has devoted in the past 10 years______ the disabled is now considered__________ of great value.

A. to helping; being　 B. to helping; to be

C. to help; to be　 D. helping; being

高三英语单项填空中等难度题查看答案及解析