A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin.
Amphibians, animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo.
Now the same oxygen sensors found in frog skins and in the lungs of mammals (哺乳動(dòng)物) have unexpectedly been discovered in the skin of mice.
“No one had ever looked,” explained Randall Johnson, a biologist researcher.
Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.
“We have no reason to think that they are not in the skin of people too,” Johnson said.   These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1a genetically removed from their skin failed to produce this hormone (荷爾蒙) even after hours of such low oxygen.
These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (貧血癥) without injecting drugs, which make up a multibillion-dollar market, Johnson said.
Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained.
The scientists detailed their findings in the April 18 issue of the journal Cell.
49. Which of the following statements is TRUE according to the passage?
A. Johnson believes that Oxygen sensors also exist in human skin.
B. People have to surf the Internet to read detailed findings.
C. It has been proved that these findings help treat lung diseases.
D. It has long been expected oxygen sensors exist in mice’s skin. 
50. One of the functions of the molecules mentioned above is _______.
A. carrying oxygen around the body                   B. improving athletes’ performance
C. detecting oxygen                                          D. increasing level of oxygen
51. What is Johnson’s attitude to the application of the findings to the athletes’ training?
A. Negative                  B. Doubting                  C. Positive             D. Hesitating
52. The best title of the passage may be _______.
A. Great Findings Benefits Athletes A Lot
B. Frogs And Mice Are Distant Relatives
C. First Known Animal Breathes Through Skin
D. Humans Might Sense Oxygen Through Skin

小題1:A
小題2:C
小題3:C
小題4:D
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


Excused from recycling(回收利用) because you live in a high rise with a rubbish chute (垃圾道)? You won't be for long. Miami's Mark Shantzis has made it simple for those living in tall buildings to use the chute and recycle too .
　　In Shantzis' Hi-Rise Recycling System, a chute leads to a pie-shaped container with six boxes that can turn around when operated. The system , which fits in the same space as the chute and container now in use, enables glass , plastic , paper , metal , and other rubbish to go into separate boxes .
　　The system is controlled from a board next to the chute door. The board has a button for each class of recycling materials (as well as for unrecyclables). At the press of a button, a microcomputer locks all other floors' chute door and sets the recycling container turning until the right box comes under the chute. The computer also counts the loads and gives a signal by phone when the box is full. And a particular piece of equipment breaks up the nonrecyclables
　　Sorting(分類(lèi)) recyclables before they are collected saves the use of expensive materials recovery equipment which otherwise has to do the sorting . Such equipment often makes recycled materials very expensive, so expensive that tons of recyclables remain wasted . Shantzis believes his system could help recycled materials become more cost-effective.
小題1:The purpose in writing this text is _________.
A．to encourage people to recycle their rubbish
B．to introduce a recycling system for high rises
C．to describe the use of computer technology in recycling
D．to explain the need for rubbish collection in high rises
小題2: When he says "You won't be for long" the writer means that _______.
A．you'll soon be living in a cleaner building
B．rubbish chutes will become out of date before long
C．you won't wait long for your turn to recycle rubbish
D．it won't be long before you'll have to recycle your rubbish
小題3: Before dropping rubbish into the chute you have to ___________
A．lock the other floors' chute doorsB．check if the container is full
C．press the correct buttonD．break up the rubbish
小題4:The biggest advantage of this new system is that _________
A．it reduces the cost of recycling　B．it saves time and space
C．it saves money for people living in high rises
D．it makes better use of the existing recovery equipment

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

The invention of the electric telegraph gave birth to the communications industry. Although Samuel B. Morse succeeded in making the invention useful in 1837, it was not until 1843 that the first important telegraph line was constructed. By 1860 more than 50,000 miles of lines connected people east of the Rockies. The following year, San Francisco was added to the network.
The national telegraph network strengthened the ties between East and West and contributed to the rapid expansion of the railroads by providing an efficient means to monitor schedules and routes. Furthermore, the extension of the telegraph, combined with the invention of the steam-driven rotary printing press by Richard
M. Hoe in 1846, revolutionized the world of journalism. Where the business of news gathering had been dependent upon the mail and on hand-operated presses, the telegraph expanded the amount of information a newspaper could supply and allowed for more timely reporting. The creating of the Associated Press as a central wire service in 1846 marked the arrival of a new era (紀(jì)元) in journalism.
71. The main topic of the passage is        .
A. the history of journalism                                B. the origin of the national telegraph
C. how the telegraph network contributed to the expansion of railroads
D. the contributions and development of the telegraph network
72. The word "gathering" in line 11 refers to        .
A. people                    B. information                   
C. objects                                     D. substances
73. The author's main purpose in this passage is to         .
A. compare the invention of the telegraph with the invention of the steam-driven rotary press
B. propose new ways to develop the communications industry
C. show how the electric telegraph affected the communications industry
D. criticize Samuel B. Morse
74. This passage would most likely be found in a        .
A. U.S. history book   B. book on trains  
C. science textbook D. computer magazine
75. It can be inferred from the passage that          .
A. Samuel Morse did not make a significant contribution to the communications industry
B. Morse's invention did not immediately achieve its full potential (潛力)
C. the extension of the telegraph was more important than its invention
D. journalists have the Associated Press to thank for the birth of the communications industry

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


“Around 500,000 years ago, at the Peking Man Site at Zhoukoudian in Beijing’s suburban Fangshan district, which is about 50 km from the city of Beijing, there lived early human beings,” says a China history textbook.
The textbook now has to be revised. New dating techniques suggest the remains of Peking Man--- found in the 1920s---are over 200,000 years older than previously thought. What’s important about that date, about 770,000 ago, is that this was an ice age on Earth.
Over Earth’s long history, there have been a number of times when ice and snow covered a large part of its surface. Such periods are known as ice ages.
Earth is in an ice age now. It started about 2 million years ago. Despite the many warm periods since then, scientists regard the whole time as one ice age because of the continuous existence of at least one large ice sheet---the one over Antarctica.
The new discovery was made by Chinese and US scientists. It suggests Peking Man is probably our oldest cold weather human being, said Darryl Granger, an atmospheric scientist at Purdue University whose research appears in Thursday’s edition of the journal Nature.
The average yearly temperature at the time in that part of China was around the freezing mark, but it was too dry for an ice sheet, Granger said.
This raises a question. How did Peking Man survive the cold weather?
Rick Potts, a Smithsonian Institution human origins expert who wasn’t involved in the research, raised three possibilities:
First, fire. Early findings showed signs of a fire in Peking Man’s cave. But there has been debate about whether the fire was accidental or controlled.
Second, fur. There is no evidence that Peking Man used simple tools to make more form-fitting clothes, it’s more likely he wore animal fur.
Lastly, he may have developed gradually to handle the cold. Peking Man may have experienced physiological changes that allowed more blood to flow to his hands and legs, Potts said. “People in general who live in colder climates tend to be shorter and wider,” he explained.
Unlike the times of Peking Man today the global temperature is rising due to the greenhouse effect. In the future, could humans develop to handle the warmth just as Peking Man did to fight the cold?
72. According to the new research, Peking Man actually dates back to _______.
A. around 500,000 years ago            B. over 200,000 years
C. about 770,000 years ago             D. about 2 million years ago
73. What is the most important standard for scientists to decide an ice age?
A. The weather conditions.              B. The continuous existence of any large ice sheets.
C. The average yearly temperature        D. The long period of snowfall
74. Which of the following is true of Peking Man?
A. He is the oldest human being           B. He used fire to keep warm
C. He wore form-fitting clothes made from fur with simple tools.
D. He might have been shorter and wider than previously thought.
75. The following are all the possibilities EXCEPT _______ that the Peking Man survived the cold weather.
A. putting up tents to keep the cold out      B. wearing animal fur
C. using fire in their cave                 D. developing gradually to handle the cold.

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Humans have observed and explored the oceans since ancient times.But it wasn’t until the 19th century that the scientific study of oceans began.The first major scientific expedition,and the one that firmly established the field of oceanography,was the around-the-world voyage of H.M.S.  Challenger.Setting out from England in 1872,the Challenger spent almost three and a half years gathering a wealth of information about seawater,sea life,and the ocean floor.Major oceanographic expeditions since then have included the South Atlantic voyage of the German ship Meteor in 1926 and the Deep-Sea Drilling Project from 1968 to 1983.Many individuals also have played important roles in advancing our understanding of oceans,beginning with Matthew Fontaine Maury in the mid-1800s;his work on oceanography and navigation led to a uniform system of weather reporting at sea.Since Maury’s time,oceanography has progressed rapidly.Early oceanographers had to contend themselves with tossing buckets overboard to see what they might haul in.Today’s oceanographers are equipped with space images,supercomputer models,and deep-sea robots that can crawl along the seafloor.As they set goals for the future,some oceanographers even dream of doing research in permanently manned stations on the bottom of the oceans.
小題1:Which of the following statements is true?
A．Humans didn’t explore the oceans until the 19th century.
B．Maury first established the field of oceanography.
C．Maury spent a lot of time in studying seawater,sea life,and the bottom of the ocean.
D．Many individuals also plays a very important part in advancing our understanding of oceans,such as Maury.
小題2:How many expeditions are mentioned in this passage?
A．Four.B．Three.C．Five.D．Two.
小題3:What can we infer from the passage?
A．The process of the oceanography has stopped at one time.
B．Maury’s work on oceanography contributes a lot to weather reporting at sea.
C．Nowadays the equipment for studying the oceans needs improving,because it is out of date.
D．The expeditions in the past had great difficulty and made a lot of efforts in order to study the oceans.

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


E
Twenty years ago, most experts believed that differences in how boys and girls behaved were mainly due to differences in how they were treated by their parents, teachers, and friends. It’s hard to cling to that belief today. Recent research has shown that there are biological differences between boys and girls. Understanding these differences is important in raising and educating children.
For example, girls are born with more sensitive hearing than boys, and the difference increases as kids grow up. So when a grown man speaks to a girl in what he thinks is a normal voice, she may hear it as yelling. Conversely (反過(guò)來(lái)), boys who appear to be inattentive in class may just be sitting too far away too hear the teacher.
Likewise, girls are better in their expression of feelings. Studies reveal that negative emotions are seated in an area of the brain called the amygdala. Girls develop all early connection between this area and the cerebral cortex (大腦皮層), enabling them to talk about their feelings. In boys these links develop later. So if you ask a troubled adolescent boy to tell you what his feelings are, he often cannot say much.
Dr. Sax, an advocate of single-sex education, points out that keeping boys and girls separate in the classroom has yielded striking educational, social, and interpersonal benefits. Therefore, parents and teachers should try to recognize, understand, and make use of the biological differences that make a girl a girl, and a boy a boy.
67．What is the main idea of the passage?
A. Boys tend to pay less attention in class than girls.
B. Girls are better than boys in their ability to detect sounds.
C. Boys and girls behave differently because of biological differences.
D. Single-sex schools are not good because they keep boys and girls separate.
68．Why do girls express negative feelings better than boys?
A. Girls are more emotional than boys.
B. Girls have more brain cells than boys.
C. The amygdala is located in different areas of the brain for boys and girls.
D. The links between certain parts of the brain develop earlier in girls than in boys.
69．Which of the following does the author believe?
A. Girls need more training in communication.
B. Boys and girls should be educated in different ways.
C. Parents should pay more attention to boys.
D. Sex differences should be ignored in education。
70．What does the phase “cling to” in the first paragraph mean?
A. maintain               B. abandon                         C. evaluate          D. challenge

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


Tears are nature's way of making us feel more comfortable. When our eyes is made uncomfortable by some small pieces of pollution, or when we are cutting onions, or when we are exhausted and “red –eyes” from over work and late hours, tears form in our eyes to clean and re-flesh them.
Tears are also a sign of strong emotion. We cry when we are sad and we cry when we are happy.
And tears seem to be uniquely（唯獨(dú)）human. We know that animals also experience emotion—fear, pleasure, loneliness — but they do not shed （流） tears. From this, we can conclude that tears are closely related to the emotional and biological make up of the human species.
Biologically speaking, tears are actually drops of saline fluid, which is a little bit salty, produced by a gland（腺）in the body. Because salt is an important component, tears may actually constitute the most conclusive evidence that the human animal is the end product of a long evolutionary process that began in the sea.
And it is clear that, in addition to（除了） the emotional benefits（好處）, the shedding of tears has a specific biological function as well. Through tears, we can eliminate from our body certain chemicals which build up in response to stress and create a chemical imbalance in the body. Crying actually makes us feel better by correcting that imbalance and making us feel good again. And thus the emotional and the biological functions of tears merge（合并）into one and make us even more "human" than we would otherwise be.
68．According to the passage, human beings may have originated（起源于）in________.
A．the sea             B．the salt        C．chemicals      D．a(chǎn)nimals
69．Which of the following is NOT a function of tears?
A．Biological       B．Emotional    C．Political   D．Chemical
70．According to the article, which of the following is unique to humans?
A．The feeling of loneliness.         B．The state of feeling good.
C．The ability to shed tears          D．The feeling of fear
71．The underlined word “eliminate” probably means_______.
A．a(chǎn)dd            B．produce       C．replace        D．remove

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：完形填空


第二部分：英語(yǔ)知識(shí)及運(yùn)用（共兩節(jié)，滿(mǎn)分35分）
第一節(jié)：完形填空（共10小題；每小題2分, 滿(mǎn)分20分） 
閱讀下面短文，從短文后所給各題的四個(gè)選項(xiàng)A、B、C和D中選出能填入相應(yīng)空白處的最佳選項(xiàng)。
Rubber ducks are being used to help scientists understand global warming and melting glaciers. NASA researchers have  21   90 ducks into holes in Greenland's fastest moving glacier, the Jakobshavn Glacier between Greenland and Canada. The   22   have each been marked with the words "science experiment" along with an e-mail address. If they are found scientists will be able to  23   how the water moves through the ice and provide information about the   24   of glaciers. Scientists are still   25   about why glaciers speed up in summer and head towards the sea. One theory is that as the summer sun melts ice on top of the glacier's surface, the water moves to the bottom of the glacier, where it helps to   26   the movement of ice toward the coast. The Jakobshavn Glacier is believed to be the   27   of the iceberg that sank the Titanic in 1912. Robert Jones, the experiment organizer, said none of the ducks had been   28   yet. "We haven't heard back but it may take some time until somebody actually finds it and decides to send us a/an   29   that they have found it," he said. "These are places that are   30   so there aren't people walking around."
21. A. flown                 B. buried               C. hidden                     D. dropped
22. A. results            B. toys               C. glaciers          D. scientists
23. A. remember       B. invent            C. learn                 D. control
24. A. development    B. movement           C. growth        D. travels
25. A. unsure          B. excited          C. concerned       D. ignorant
26. A. reduce          B. control        C. speed         D. stop
27. A. position               B. source            C. reason            D. result
28. A. hurt                 B. eaten              C. missing         D. reported
29. A. email            B. card                  C.    fax          D. sign
30. A. hidden          B. lost                C.    remote       D. quiet

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


A survey has found that in adolescence (青春期) a lack of physical activity is connected with emotional and behavioral problems. More than 7,000 teenagers in Finland took part in the survey that judged their levels of physical activity and mental and emotional health. Boys who reported less than one hour of physical activity a week were more likely to be anxious and sad than boys who were more active. Girls who were not active had similar problems, and were more likely than boys who were not active to have sleep problems and break school rules.
The researchers concluded that both boys and girls who are not active are more likely than active ones to have social and attention problems.
“Adolescence is already a difficult stage of life-emotionally, mentally and physically,” study author Marko T.Kantomaa said in the American College of Sports Medicine.
“Mixing that with negative mental and emotional effects brought on by lack of physical activity does not help young people enter adulthood smoothly. Physical activity could be a highly effective and relatively easy way to help that transition and could lead to healthy habits for one’s whole life,” Kantomaa said.
Researchers said that evidence suggests that an increase in physical activity helps reduce problems of sadness and anxiety in both adolescents and adults. “It seems that there is a psychological(心理的)and physiological(生理的)connection that helps explain the beneficial effects of exercise on mental health,”Kantomaa said.
1. The first paragraph leads us to believe that________.
A. a lack of physical activity may cause many mental problems
B. a lack of physical exercise is common among teenagers
C. girls have more physical and mental problems than boys
D. inactive boys are more likely to break rules than inactive girls
2. Which of the following problems may NOT be caused by a lack of activity according to the passage?
A. Anxiety.     B. sleeplessness.    C. Inattention.   D. unkindness.
3. From the passage we can conclude that___________.
A. boys take more physical exercise than girls
B. teenagers who aren’t active spend a lot of time studying
C. plenty of physical activity is effective in developing healthy habits
D. physical exercise is the only way to cure mental problems
4. The underlined word “transition” in the fourth paragraph is closest in meaning to“_______”.
A. change      B. condition       C. balance       D. activity

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