Five times in the earth’s history, some three...

Five times in the earth’s history, some three-quarters of all living species disappeared forever-and within a short period of time. Those species losses stand for a major change in the planet’s ecology(生态学). Clues to these changes can be seen in the fossils(化石)and rock layers.

Today, human activities are driving species to die out at a rate never seen before. And this loss of species really does matter, said Anita Narwani. She works at the University of Michigan in Ann Arbor. That’s because the diversity(多样性)of species in an ecosystem provides people with all types of services we can’t do without.

Trees provide oxygen for us to breathe. At the same time, they remove carbon from the air which is a cause of global warming. Plants help clean air and water. Animals move seeds from one area to another. A broad range of living resources also provides people with food, shelter and medicine.

Narwani wanted to find out how important the diversity of species is for people. So she teamed up with other ecologists to review more than 1,700 studies. They found that more diverse parts of the earth tend to do well in things like removing carbon and providing us with wood and other natural resources. They were also better at keeping fisheries large and healthy so that they could feed many people.

Unfortunately, the diversity of species is in steep drop. It is too soon to say that the earth is undergoing a sixth mass extinction, Narwani said. She said a mass extinction means the loss of 75 percent of species over 2 million years or less. We haven’t lost that many – at least not yet. But according to her, if species losses continue so fast, such a mass extinction could occur in just 300 years.

The new findings highlight the potential for humans to use up many of the resources on which we now depend. As people learn more, however, they can take steps to lessen those risks. People should protect ecosystems so that they can continue to provide us with their services.

1.What’s the writer’s purpose in giving the examples in Paragraph 3?

A. To tell us how we get our food and resources.

B. To show the importance of the diversity of species.

C. To tell us the use of each species.

D. To show the writer is very learned.

2.The underlined word “They ” in Paragraph 4 refers to 　　　 .

A. humans

B. Narwani and her team

C. natural resources

D. various species

3.Narwani and her team found that 　　　　 .

A. many people know the importance of protecting wildlife

B. many species die out because of human activities

C. making good use of natural resources benefits people

D. rich diversity of species greatly benefits people

4. We can learn from Paragraph 5 that 　　　 .

A. the world’s species are dying out in a very fast rate

B. we’ll lose 75 percent of species on the earth

C. the earth is undergoing a sixth mass extinction

D. a mass extinction of species will occur in 300 years

高一英语阅读理解中等难度题查看答案及解析

A long time ago people thought that the sun went round the earth. In some countries people even said that the sun was a god (神). They thought the god drove across the sky each day on a golden horse. Now we know the earth goes round the sun. It takes the earth a year to go all way round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over a thousand miles a minute on its journey round the sun.

The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon but we know that no one can ever go to the sun. It is far too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than million times larger.

1.A long time ago, people said the sun was ____.

A. a golden horse of god　　　 B. a god on a golden horse

C. a god with golden dress　　 D. a god and a golden horse

2.The earth travels over ____ miles an hour.

A. 1,000　　 B. 100,000　　 C. 6,000,000　　 D. 60,000

3.One year is ____

A. the time for the earth to turn round.

B. the time the earth travels one thousand miles.

C. one circle the earth goes round the sun.

D. the journey of the earth.

高一英语阅读理解中等难度题查看答案及解析

A long time ago people thought that the sun went round the earth. In some countries people even said that the sun was a god(神). They thought the god drove across the sky each day on a golden horse. Now we know the earth goes round the sun. It takes the earth a year to go a circle(圈) round the sun. Today men even know how far it is for the earth to go round the sun. They tell us that the earth travels over a thousand miles a minute on its journey round the sun.

The sun is really a star. It is much bigger than the earth and it is very hot. Some people have been to the moon but we know that no one can ever go to the sun. It is far too hot for people to live anywhere near it. The sun is three hundred thousand times heavier than the earth and more than million times larger.

1.A long time ago, people said the sun was ________.

A. a golden horse of god                B. a god on a golden horse

C. a god with golden dress                D. a god and a golden horse

2.The earth travels over ________ miles an hour.

A. 1,000            B. 100,000            C. 6,000,000            D. 60,000

3.One year is ________.

A. the time for the earth to turn round

B. the time the earth travels one thousand miles

C. one circle the earth goes round the sun

D. the journey of the earth

高一英语阅读理解中等难度题查看答案及解析

In order to tell what I believe, I must briefly introduce some of my personal history.

The turning point of my life was my decision to give up a promising business career and study music. My parents, sharing my love of music, _16_____ of it as a profession. This was understandable in view of the family __17____. My grandfather had taught music for nearly forty years and earned barely enough to __18____ for his large family. My father often said it was only the hardheaded thriftiness of my grandmother that helped the family live a life. As a(an) __19___ of this example in the family, my mention of music as a profession carried with it a picture of an existence with __20____ financial rewards. My parents insisted upon college instead of a conservatory of a career of music, and so finally I went to college quite happily.

Before my graduation from Columbia, the family met with severe financial problems and I felt it my duty to __21____ college and take a job. Thus was I started a business career – which I always think of as the wasted years.

Now I do not for a moment mean to disparage business. My whole point I is that it was not for me. I went into it for __22___, and apart from the satisfaction of being able to help the family, money is all I got out of it. It was not enough. I felt that life was passing me by. From being merely dissatisfied I became really ___23___. I knew what I wanted is to save enough to __24____ and go to Europe to study ___25__. I used to get up at dawn to practice before I left for “downtown”, disappointing my poor mother by eating a hurried breakfast at the last minute. I continued to make money, and finally, bit by bit, saved enough to __26____ me to go abroad. And, by now, the family didn’t need my help any longer. I ended my business career, feeling like a man released from prison, and sailed for Europe. I stayed four years, worked harder than ever and ___27___ every minute of it.

“Enjoyed” is too mild a word. I walked on air. I really lived. I was a __28____ man and I was doing what I loved to do and what I was meant to do.

If I had stayed in business, I might be a __29____ man today, but I do not believe I would have made a success of living. I would have given up all those inner satisfactions, which money can never buy.

When I broken away from business, it was against the advice of all my friends and family. Most of us are so accustomed to the association of success with money__30___the thought of giving up a good income for an idea seemed rather crazy. If so, all I can say is “Ah! It’s great to be crazy.”

1.                A．thought        B．disapproved     C．agreed   D．disagreed

2.                A．background     B．experience      C．tradition  D．belief

3.                A．offer           B．support         C．provide   D．give

4.                A．expectation     B．intention        C．cause    D．consequence

5.                A．certain         B．uncertain       C．sure D．ensured

6.                A．enter          B．join            C．leave D．apply

7.                A．interest        B．dreams         C．money   D．hope

8.                A．painful         B．excited         C．embarrassed   D．cheerful

9.                A．drop           B．satisfy          C．live  D．quit

10.               A．music          B．medicine       C．economy  D．Business

11.               A．let            B．make          C．encourage D．enable

12.               A．spent          B．enjoyed        C．wasted    D．used

13.               A．free           B．wealthy        C．creative   D．enthusiastic

14.               A．strong         B．successful       C．wealthy   D．satisfied

15.               A．it             B．which          C．that  D．as

高一英语完型填空中等难度题查看答案及解析

At no time in history has there been such a mass(大规模的) movement of people from the countryside to the city as is happening now. By the year 2030, it’s estimated（估计） that more than two thirds of the world’s population will be living in cities, twice as many as today. This means that the problems faced by cities today—overcrowding, poor housing, unemployment, poverty(贫穷) and lack of food and water—will be twice as bad, unless we find solutions soon.

Another serious issue is how to provide good transportation for their citizens. Many of the world’s major cities are already struggling with out-of-date transport infrastructures(基本设施). How can they deal with the additional demands?

London is a good example. Its enlargement was made possible by the invention of the steam engine, which powered the world’s first underground railway. But its transport system are now hopelessly out-of-date and need urgent modernization. London’s future success depends very much on developing better public transport.

Over a million people travel into central London every day from outside the city. They, together with the people who live in London, want a public transport system that is efficient, safe and environmentally friendly. What they often get, however, falls far short of that ideal. Passengers complain about cost and pollution, while businesses worry about the problems their staff have in getting to work on time. Yes, the proportion of London households that own a car grew from just over ten percent in the early 1950s to over sixty percent today.

As the city has become increasingly crowded and polluted, there has been a growing realization that action must be taken soon.

1.The passage is mainly written to tell us that ________.

A. it’s difficult to solve the problem faced by cities today

B. overpopulation causes the problems in cities like London

C. possible solutions to cities’ transport problems will be found soon

D. public transport plays an important role in developments in major cities

2.The underlined word “they” in fourth paragraph refers to _______.

A. the citizens in the city of London

B. those who come to London from other places

C. passengers who make complaints about the cost

D. businesses who are anxious about their staff getting to work late

3.From the passage we know that the mass movement to the city will cause the following problems EXCEPT_____________.

A. poverty　　　　　　　　　　 B. unemployment

C. better environment　　 D. poor transportation

4.The underlined words “environmentally friendly” is closest in meaning to ________.

A. pleasant and nonpolluting　　 B. cheap and punctual

C. quick and straight　　　　 　　 D. fair and convenient

5.We can infer that in the following paragraph the writer would most probably deal with ______.

A. traffic jams in London streets

B. London’s future in train and air travel

C. possible solutions to London’s traffic problems

D. the improvement of the citizen’s living conditions

高一英语阅读理解中等难度题查看答案及解析

The number of speakers of English in Shakespeare’s time is estimated(估计) to have been about five million. Today it is estimated that some 260 million people speak it as a native language, mainly in the United States, Canada, Great Britain, Ireland, South Africa, Australia and New Zealand. In addition to the standard varieties of English found in these areas, there are a great many regional and social varieties of the language as well as various levels of usage that are employed both in its spoken and written forms.

In fact, it is impossible to estimate the number of people in the world who have acquired an adequate(足够的) working knowledge of English in addition to their own languages. The purpose for English learning and the situations in which such learning takes place are so varied that it is difficult to explain and still more difficult to judge what forms an adequate working knowledge for each situation.

The main reason for the widespread demand for English is its present-day importance as a world language. Besides serving the indefinite needs of its native speakers, English is a language in which some of important works in science, technology, and other fields are being produced, and not always by native speakers. It is widely used for such purposes as meteorological and airport communications, international conferences, and the spread of information over the radio and television networks of many nations. It is a language of wider communication for a number of developing countries, especially former British colonies. Many of these countries have multilingual populations and need a language for internal communication in such matters as government, commerce, industry, law and education as well as for international communication and for entrance to the scientific and technological developments in the West.

1.What would be the best title for this passage?

2.Which of the following statements is NOT true?

3.According to the passage, what is the main reason for the widespread use of English?

4.What forms an adequate working knowledge of English?

5.What type of developing countries would be most likely to use English?

6.C。细节题。根据文章最后一段倒数第2句可推知此题

高一英语阅读理解困难题查看答案及解析

The evidence for harmony(和谐) may not be obvious in some families. But it seems that four out of five young people now get on with their parents, which is the opposite of the popularly-held image （形象）of unhappy teenagers locked in their room after endless family quarrels.

An important new study into teenage attitudes surprisingly shows that their family life is more harmonious than it had ever been in the past.“We were surprised by just how positive(肯定的) today’s young people seem to be about their families,” said one number of the research team.“They’re expected to be rebellious(叛逆的) and selfish but actually they have other things on their minds：they want a car and material goods，and they worry about whether school is serving them well. There’s more negotiation(商议) and discussion between parents and children，and children expect to take part in the family decision-making process. They don’t want to rock the boat(捣乱).”

So it seems that this generation of parents is much more likely than parents of 30 years ago to treat their children as friends. “My parents are happy to discuss things with me and willing to listen to me,” says 17-year-old Daniel Lazall. “I always tell them when I‘m going out clubbing. As long as they know what I’m doing， they’re fine with me.” Susan Crome, who is now 21, agrees. “Looking back on the last 10 years， there was a lot of what you could call negotiation. For example, as long as I’d done all my homework, could go out on a Saturday night. But I think my grandparents were a lot stricter with my parents than that.”

Maybe this positive view of family life should not be unexpected. It is possible that the idea of teenage rebellion is not rooted in real facts. A researcher comments(评论),“Our surprise that teenagers say they get along well with their parents comes because of a brief period in our social history when teenagers were regarded as different beings. But that idea of rebelling and breaking away from their parents really only happened during that one time in the 1960s when everyone rebelled. The normal situation throughout history has been a smooth change from helping out with the family business to taking it over. ”

1.What is the popular images of the teenager today？

A．They worry about school.

B．They dislike living with their parents.

C．They have to be locked in to avoid troubles.

D．They quarrel a lot with other family members.

2.The study shows that teenagers don’t want to __________.

A．share family responsibility

B．cause trouble in their families

C．go boating with their family

D．make family decisions

3.Compared with parents of 30 years ago, today’s parents ____________.

A．go to clubs more often with their children

B．are much stricter with their children

C．care less about their children’s life

D．give their children more freedom

4.According to the writer, teenage rebellion __________.

A．may be a false belief

B．is common nowadays

C．existed only in the 1960s

D．resulted from changes in families

5.What is the passage mainly about？

A．Negotiation in family.

B．Education in family.

C．Harmony in family.

D．Teenage trouble in family.

高一英语阅读理解中等难度题查看答案及解析

The evidence for harmony may not be obvious in some families. But it seems that four out of five young people now get on well with their parents, which is the opposite of the popularly held image of unhappy teenagers locked in their room after endless family quarrels.

An important new study into teenage attitudes surprisingly shows that their family life is happier than it has ever been in the past. “We were surprised by just how positive today’s young people seem to be about their families,” said one member of the research team. “They’re expected to be rebellious（叛逆的）and selfish but actually they have other things on their minds; they want a car and material goods, and they worry about whether school is serving them well. There’s discussion between parents and children, and children expect to take part in the family decision-making process. They don’t want to rock the boat.”

So it seems that these parents are much more likely than parents of 30 years ago to treat their children as friends. “My parents are happy to discuss things with me and willing to listen to me,” says 17-year-old Daniel LaSalle. “I always tell them when I'm going out clubbing. When they know what I'm doing, they’re fine with it.” Susan Cromer, who is now 21, agrees. “Looking back on the last 10 years, there was a lot of what you could call talk or discussion. For example, when I’d done all my homework, I could go out on a Saturday night. But I think my grandparents were a lot stricter with my parents than that.”

Maybe this positive view of family life should not be unexpected. It is possible that the idea of teenage rebellion is not based on real facts. A researcher explains, “Teenagers were thought to be different from others in a part of time in our social history. But to our surprise, they say they are getting on well with their parents. But that idea of rebelling and breaking away from their parents really only happened during that one time in the 1960s when everyone rebelled.”

1.The study shows that teenagers don't want to ______________________.

A. share family duties

B. cause trouble in their families

C. go boating with their family

D. make family decisions

2.Compared with parents of 30 years ago, today’s parents ___________________.

A. go to clubs more often with their children

B. are much stricter with their children

C. care less about their children’s life

D. give their children more freedom

3.According to the writer, teenage rebellion ____________________.

A. may be a wrong opinion

B. is common at present

C. always happened in the 1960s

D. was caused by changes in families

4.Which title best gives the main idea of the passage?

A. Discussion in family

B. Teenage education in family

C. Teenage trouble in family

D. Harmony in family

高一英语阅读理解中等难度题查看答案及解析

The time Dr. Wang has devoted _____ the disabled in the past five years is now considered_____of great value.

A. helping; being        B. helps; to be            C. to helping; to be        D. to helping; being

高一英语单项填空中等难度题查看答案及解析

My father was raised in a fatherless home at a time when the family of five struggled to survive, which caused my father to be extremely tightfisted(吝啬) with money.

When we children became 16 that other children got pocket money from their parents, we made a(n)17 to ask our father from some. Immediately his face turned stone-cold, and he said, “If you’re old enough to ask, you’re old enough to 18.” And we had to seek odd jobs about the neighborhood.

He didn’t 19 his attitude as we grew into adulthood. There was a time when 20 of us had a car, so we had to ride a 21 whenever we came home. Though the bus stopped about two miles from home, Dad never met us, 22  in bad weather. If someone    23 (and my brothers did a lot), he’d say in his 24 father-voice. “That’s what your legs are 25  !”

One spring morning I was on the bus home from 26. Tests and long hours in labs had 27 me exhausted. As other students were 28 at their stops. I looked silently out of the window. Finally, the bus came to a 29 at my destination, and I 30, carrying my suitcase to begin the long journey home.

The row of privet hedge(树篱) came into 31, which lined the driveway that climbed the hill to our house. I stopped to put a book in the suitcase. When I stood up, I saw something gray 32 along the top of the hedge toward the house.

It was the top of my father’s head. I 33 then, each time I came home, he would stand behind the hedge, watching, 34 he knew I had arrived safely. I held back my tears. He did care,35.

Upon reaching home, I found my father innocently in his chair. “So! It’s you!” he said, his face lengthening into surprise.

1.                A．aware          B．certain         C．surprised D．excited

2.                A．attempt         B．suggestion       C．trouble   D．plan

3.                A．spend          B．earn           C．survive   D．raise

4.                A．strengthen      B．soften          C．take D．show

5.                A．neither         B．each           C．all   D．none

6.                A．bicycle         B．car            C．train     D．bus

7.                A．especially       B．only           C．even D．once

8.                A．refused        B．complained      C．cried D．intended

9.                A．strangest       B．lowest          C．softest   D．scariest

10.               A．on            B．in             C．by   D．for

11.               A．work          B．home          C．town D．college

12.               A．led            B．made          C．found D．proved

13.               A．treated         B．received        C．met  D．greeted

14.               A．stop           B．house          C．street D．corner

15.               A．stepped off     B．went off        C．jumped on D．climbed on

16.               A．mind          B．view           C．flower D．leaf

17.               A．shining         B．flying          C．failing D．moving

18.               A．understood     B．thought        C．imagined  D．realized

19.               A．since          B．after           C．until D．though

20.               A．after all        B．above all        C．in advance D．in total

高一英语完型填空中等难度题查看答案及解析