The Tibetans________ in the Himalayas for cen...

The Tibetans have lived in the Himalayas for centuries and have adjusted to the conditions _________.

A. at such great height                       B. at such a great height

C. on such great height                       D. on such a great height

高三英语单项填空中等难度题查看答案及解析

The Tibetans________ in the Himalayas for centuries and have adjusted to the conditions at________.

A. has live; a such great height            B. have live; such a great height

C. has lived; a such great height           D. have lived; such a great height

高三英语单项填空困难题查看答案及解析

For centuries, elephants have played a big role in the world's economies, culture and religion. The African elephant used to be found all over Africa and the Asian elephant moved from Syria to China to Indonesia. Nowadays, elephants are found in small groups in the south of the Sahara Desert and scarcely in Southeast Asia, Sri Lanka and India.

In the early twentieth century, there were close to ten million elephants, and now the elephant number is as low as 252,000 and expected to drop down to 160,000 by 2025. Between 2007 and 2014, the elephant population fell by at least 30%, or 144,000 elephants. As researchers have traveled over the African plains, they only spotted one herd of 36 elephants in an area like the size of Mexico. It is clear that these gentle mammals are disappearing right before our eyes.

There are many reasons why the elephant population has been decreasing, one of which is their habitat. Humans are competing with elephants for living space, and as more and more humans clear the land that is being used by elephants, the elephants have less space. Elephant hunting or "poaching" has been a major factor for the disappearance of this species, and they are killed only for their valuable ivory tusks. Although the trade of tusks is illegal, it is still a common practice in many places.

Often, all the local people living among elephants would be farmers, and found that they could make more money by selling the tusks of one elephant, than doing manual labor for twelve years. That alone makes it really hard to prevent them from killing the elephants.

Some places such as Botswana, have put in extra effort to protect their wildlife from poachers by founding their Botswana Defense Force, which is made up of around 700 specially-trained soldiers that are stationed in 40 different areas. You may feel worried about the present situations elephants are in, but there are ways to help. To find out how you can help elephant conservation, adopt an elephant, or donate, click here.

1.The numbers listed in Paragraph 2 show that　　 .

A. humans don't care for elephants　　 B. elephants have been next to extinction

C. elephants have become gentler than before　　 D. elephants have gained more attention

2.What is the biggest factor for the disappearing elephants?

A. Less space.　　 B. A lack of food.

C. Suffering from a disease.　　 D. Elephant hunting.

3.Why is it hard to ban killing the elephants among the farmers?

A. Their tusks are profitable.

B. Elephants are destroying their fields cruelly.

C. Farmers hope to make a living by selling their meat.

D. Farmers practice their hunting skills by killing elephants.

4.What is the purpose of this text?

A. To persuade readers to make a donation.

B. To guide readers how to protect elephants.

C. To encourage readers to help protect elephants.

D. To introduce the decreasing number of elephants.

高三英语阅读理解中等难度题查看答案及解析

All the wisdom of the ages and all the stories that have delighted mankind for centuries are easily and cheaply available to all of us within the covers of books. The most unfortunate people in the world are those who have never discovered how satisfying it is to read good books.

Reading is the pleasure of the mind, which means that it is a little like a sport: your eagerness and knowledge and quickness make you a good reader. Reading is fun, not because the writer is telling you something, but because it makes your mind work. Your own imagination works along with the author's or even goes beyond his. Your experience, compared with his, brings you to the same or different conclusions, and your ideas develop as you understand his.

Every book stands by itself, like a one--family house, but books in a library are like houses in a city. Although they are separate, together they all add up to something. They are connected with each other and with other cities. Books influence each other; they link the past, the present and the future and have their own generations, like families. Wherever you start reading, you connect yourself with one of the families or ideas, and in the long run, you not only find out about the world and the people in it but also you find out about yourself, too.

Reading can only be fun if you expect it to be. If you concentrate on books somebody tells you "you ought" to read, you probably won't have fun. But if you put down a book you don’t like and try another till you find one that means something to you, and then relax yourself with it, you will almost certainly have a good time  and if you become, as a result of reading, better, wiser, kinder, or more gentle, you won't have suffered during the process.

72. In the writer's opinion, in fact reading is a process of ________.

A. listening to the author                                   B. accepting the author's ideas

C. communicating with the author and yourself             D. judging the author's work

73. The writer thinks that the most unfortunate people are those _______.

A. who don't have any books                                  B. who can't enjoy reading books

C. who don’t like books                                     D. who read too many books

74. To find pleasure in reading, you should read the books _______.

A. written by famous writers                                             B. written in humor style

C. which you like to read                                     D. which are recommended by your friends

75. The author's purpose in writing the passage is to _______.

A. show the importance of reading                               B. tell us how to make reading more effective

C. tell us how to read                              D. show the pleasure of reading

72-75 CBCD

高三英语阅读理解简单题查看答案及解析

Historians and archaeologists have defined periods of human history for centuries by the technologies or materials that made the greatest impact on society. This includes the Stone Age, the Bronze Age, and the Iron Age. But what age are we in now? That question can be answered with one word for some researchers. Plastics.

“Plastic has redefined our material culture and the artifacts we leave behind. It will be found in stratified(分层的) layers in our trash deposits(沉积层). ” That’s according to John Marston, an archaeologist.

The wide variety of synthetic polymers(合成聚合物) would not exist if it weren’t for human action. About six billion tons of plastics have been made and spread around the planet. They have been spread from forests to oceans ever since the first plastic polymers were invented.

Plastics are one of the most significant changes that humans have made to the Earth’s makeup. Most plastics don’t easily degrade. This only adds to the problem. Recycling isn’t an adequate solution. Not all types of plastic are easily recyclable. And there are only a few recycling plants that can process all varieties of plastic.

According to Debra Winter, writer for The Atlantic, this means that many of the materials thrown into recycling bins can cross the planet several times before they are processed. They are made into rugs, sweaters, or they are used to make other bottles. Millions of tons of plastics are recycled every year, but millions more end up in landfills or the ocean. The problem has reached the point where it’s possible that in just a few decades there might be more plastic in the world’s oceans than fishes.

“Plastics have a supposed lifespan of over 500 years, so it’s safe to say that every plastic bottle you have used exists somewhere on this planet, in some form or another，” Winter writes.

The damage may already be done. It may be too late for human populations worldwide to change their plastic using ways. So the Plastic Age might soon take its place next to the Bronze Age and the Iron Age in the history of human civilization.

1.Why do people call our age the Plastic Age?

A.Because plastics are not naturally made.

B.Because humans create plastics.

C.Because plastics influence the world greatly.

D.Because historians and archaeologists think so.

2.According to the passage, how are most plastics dealt with currently?

A.They are recycled.

B.They are degraded.

C.They are thrown away.

D.They are made into bottles.

3.What is the author’s attitude to the Plastic Age?

A.Negative. B.Ambiguous.

C.Favorable. D.Unconcerned.

4.What is the main idea of this passage?

A.Plastics have ruined our environment.

B.We must stop using plastics altogether.

C.Human beings are in the Plastic Age.

D.Plastics are significant to human development.

高三英语阅读理解中等难度题查看答案及解析

Is there a way to turn back the aging process in people? For centuries, people have been looking for a “fountain of youth.” The idea is that if you find a magical fountain, and drink its water, you will not age.

Researchers in New York did not find an actual fountain of youth, but they may have found a way to turn back the aging process. It appears that the answer may be called the hypothalamus, which is part of your brain. It controls important body activities, including growth, the way we process food and so on.

Researchers at New York’s Albert Einstein College of Medicine found that hypothalamus neural stem cells (干细胞) also influence how fast aging takes place.

Dongsheng Cai, a professor at the Albert Einstein College of Medicine, was the leading researcher in a study on aging in mice. He and his team reported their findings.

“Aging speed can be controlled by a particular place in the body, which is the hypothalamus. And it can be controlled by a particular type of cells, which are hypothalamus stem cells.” He adds that when the hypothalamus starts aging, so does the body. So when hypothalamus function is in decline, particularly the loss of hypothalamus stem cells, and this protection against the aging development is lost, it eventually leads to aging.

Using this information, the researchers began trying to activate the hypothalamus in laboratory mice. They did this by injecting the animals with stem cells.

The researchers say the results show that the treatment slowed aging in the animals. “When we injected the hypothalamus stem cells to the middle-aged mice, the mice aged slowly and they can also live longer.”

But these results were just from studying mice in a laboratory. If the mice can live longer, does that mean people could have longer lives? The next step is to see if the anti-aging effects also work in human beings.

“If we can translate what we have seen in animals to humans, I think humans can function better during later ages.” Cai and his team say their studies may have other benefits. They say the findings could lead to new ways to help doctors identify and treat any number of age-related health issues.

1.Why does the author mention the “fountain of youth” in the first paragraph?

A. To explain what the “fountain of youth” is.

B. To introduce the hypothalamus.

C. To show how to find the “fountain of youth”.

D. To help people find the “fountain of youth”.

2.What does the underlined word “it” in Paragraph 2 refer to?

A. The brain.　　 B. The aging process.

C. Hypothalamus.　　 D. The stem cell

3.What do we know about the study done by Cai?

A. They have found a way to turn back the aging process.

B. The brain controls growth, reproduction and the way we process food.

C. The decrease of hypothalamus stem cells can lead to aging.

D. The finding has been applied to human beings.

4.Which of the following can be the best title of the passage?

A. The Fountain of Youth

B. A New Discovery about Aging

C. The Ways of Slowing Down Aging

D. Hypothalamus—the Fountain of Youth

高三英语阅读理解中等难度题查看答案及解析

To be ______ changing times you cannot have your body in the 21st century and your head back in the past.

A．in step with        B．in front of         C．together with      D．apart from

高三英语单项填空中等难度题查看答案及解析

The Diaoyu Islands _____ in Chinese maps since the 14th and 15th centuries.

A. have been included                                     B. had been included

C. were included                                      D. are included

高三英语单项填空中等难度题查看答案及解析

My husband and I were once in Nepal (尼泊尔) to see sunrise over the Himalayas.

One morning we awoke to total darkness at 5 o’clock. As we rushed through a town with cameras in hand, I noticed the calm, gentle way the Nepalese people greeted the morning. One man boiled a huge pot of milk tea, and other villagers gathered around his fire, cupping their hands around small glasses of the steaming sweet mixture. It was fascinating, but not to be left behind, we joined the stream of tourists moving quickly up to the lookout point.

The top was crowded when we arrived, but after 10 minutes of cold waiting, the assembled group gave up. “The cloud cover is too heavy,”one said. Then one by one they rushed down the hill to the next item on their sightseeing list. I was disappointed as well, but suddenly I noticed a small Nepalese boy absently playing with a stick and shooting quick glances at the clouds. He must know something we don’t, I thought. I decided to wait with him.

The boy and I didn’t have to wait long. Moments later,a tiny stream of golden light burned through one thick cloud, then another. Rose-colored fog warmed the backs of the clouds, and suddenly the morning sun stole a glance around the side of the mountain, mile above where I’d expected it to be.

Nothing I’d seen before prepared me for the moment the clouds withdrew with bowed heads, and the magnificent Himalayas were revealed before, around, and above me. I sat in astonishment, not breathing, not daring to look away, certain that God had placed me here at the backdoor of Earth to show me what Heaven really looks like. I certainly got the message. Never again will I rush a sunrise. I now know Nature will supply her fruits to me only when I am truly ready to receive them.

1.What does “It” in Paragraph 2 most probably imply?

A. The darkness of the town in the morning.

B. The huge pot of milk tea boiling on the fire.

C. The way the local people welcomed the day.

D. The stream of tourists rushing to the lookout point.

2.The author decided to wait with the Nepalese boy because _____.

A. she felt kind of having faith in him

B. the restless tourists disappointed her

C. that boy was praying to the sun with a magic stick

D. she had nothing more to see on her sightseeing list

3.What can be concluded from the passage?

A. Do in Rome as the Romans do.

B. God helps those who help themselves.

C. Time and tide wait for no man.

D. Fortune rewards those having patience.

高三英语阅读理解中等难度题查看答案及解析

语法填空

Over the centuries, there have been a few people who plan the future of the world for a living and they 1. (call) futurologists.

Hundreds of futurologists will gather at Newcastle University to hold a seminar about the future. Many people will attend the seminar with dreams of starting new enterprises 2. (base) on the predictions they will hear. I clicked 3. the websites of a few futurologists and got several predictions.

4. (short), computers will become handier. Then all of us can use our voices to control computers such as downloading files 5. updating computers just by saying a few words. By 2015, garments will have been made of new materials that will remain stainless 6. you spill on them, and they will never get old and worn. By 2025, there will have been no 7. (starve), no people who have to live on welfare, no discrimination, no conflict and people 8. (live) in peace and equality. By 2030, tiny, insect-like robots may be sent around the cells of our bodies 9. (assess) our health , which will have made it possible for us to live for at least 150 years. By 2050, we will be linking our brains to the much 10. (smart) computers and a huge database9 and a new type of electronic human might have developed!

高三英语语法填空中等难度题查看答案及解析