Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience. Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.
A new study from Switzerland, sheds light on where ice sheets melted during the ice age. It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern regions.
This surprised the researchers from the University of Bern. Scientists have long assumed that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.
The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how temperatures and currents actually changed during that time. The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影響) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion, the scientists could make, was that ice melted equally in the North and the South.
It is still a mystery as to what caused the temperature changes that caused the ice to melt.
小題1:The North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. So scientists thought that ________.
A.most of the ice melted in the Northern hemisphere
B.most of the ice melted in the Southern hemisphere
C.The North Pole is colder than South Pole
D.The South Pole is colder than North Pole
小題2:We can infer from the passage ________.
A.the ice can easily just slip into the ocean
B.volcanoes caused the ice to melt
C.melting just in the Northern hemisphere would have been impossible
D.researchers often use the computer models help their research work.
小題3:The scientists are not sure ________.
A.how long the ice age lasted
B.where ice sheets melted during the ice age
C.what caused the temperature changes
D.what the earth is made up of
小題4:Which of the following is the best title for the passage?
A.A computer model
B.Studies show ice melted equally in the North and the South during the ice age
C.Most of the ice melted in the Northern hemisphere during the 30,000-year long ice age.
D.A survey result

小題1:A
小題2:C
小題3:C
小題4:B

小題1: A 事實細節(jié)題。根據(jù)第 3 段第 2,3 句 Scientists have long assumed that most of the ice that melted was in the Northern hemisphere during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land… 可知答案。
小題2: C 推理判斷題。根據(jù)第 4 段最后兩句可 Studies suggest that melting just in the Southern hemisphere would have been impossible, too. The only reasonable conclusion… 可知冰川既不可能只在南半球融化,也不可能只在北半球融化。故答案為 C。
小題3: C 事實細節(jié)題。根據(jù)文章最后一句 It is still a mystery as to what caused the temperature changes that caused the ice to melt 可知科學家們現(xiàn)在還沒有找到引起溫度變化的原因。
【小題4 】B 主旨大意題。根據(jù)主題句 ice melted equally in the North and the South 可知本文主要講的一個新的科學發(fā)現(xiàn):冰川時期的冰川融化是在南北極均勻進行的。
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科目:高中英語 來源:不詳 題型:閱讀理解

Sunday is more like Monday than it used to be. Places of business that used to keep daytime “business hours” are now open late into the night. And on the Internet, the hour of the day and the day of the week have become irrelevant (不相關(guān)的). A half century ago in the United States, most people experienced strong and precise dividing lines between days of rest and days of work, school time and summer time. Today the boundaries still exist, but they seem not clear.
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科目:高中英語 來源:不詳 題型:閱讀理解

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科目:高中英語 來源:不詳 題型:閱讀理解


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科目:高中英語 來源:不詳 題型:閱讀理解

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According to a recent study at the Insight Meditation Society in Barre,Massachusetts. Three months of training in this kind of meditation causes a market change in how the brain allocates(分配) attention. It appears that the ability to let go thoughts that come into mind frees the brain to attend to more rapidly changing things and events in the outside world. Expert mediators are better than other people at catching such fast-changing stimuli( 刺激),like facial expressions.
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In an experiment, 17 volunteers with no meditation experience in the experimental group spent three months meditating 10 to 12 hours a day .A control group also with no meditation experience meditated for 20 minutes a day over the same period .Both groups were then given the tests with two numbers in a group of letters. As both group looked for the numbers , their brain activity was recorded.
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Just ask Daniel Levision , who meditated for three months as part of the study .”I am a much better listener,” he said . “ I do not get lost in my own personal reaction to what people are saying.”
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科目:高中英語 來源:不詳 題型:完形填空

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A.a(chǎn)re suffering from mental disorders
B.turn to Internet pharmacies for help
C.like to play deadly games with doctors
D.a(chǎn)re skeptical about surfing medical websites
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A.find medical devices easy to operate
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A.more than 6 million Americans distrust doctors
B.only 1/10 of medical websites aim to make a profit
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D.72% of health websites offer incomplete and faulty facts
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A.It’s cheap to self-treat your own illness.
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科目:高中英語 來源:不詳 題型:閱讀理解

Anyone who doubts that children are born with a healthy amount of ambition need spend only a few minutes with a baby eagerly learning to walk. No matter how many times the little ones stumble in their first efforts, most keep on trying, determined to master their amazing new skill. It is only several years later, many psychologists and teachers agree, that a good number of kids seem to lose their natural drive to succeed. For the parents of such kids, whose own ambition is often tied to their children’s success, it can be a painful experience.
Figuring out why the fire went out is the first step. Assuming that a kid doesn’t suffer from a learning disability, or isn’t involved in some family crisis(危機) at home, many educators attribute a sudden lack of motivation to a fear of failure or classmate pressure. “Everything is within the kids’ control; their intelligence is changeable,” says Lisa Blackwell, a research scientist at Columbia University. More than any teacher or workshop, Blackwell says, “parents can play a key role in conveying this message to their children by praising their effort, and progress rather than emphasizing their ‘smartness’ or praising high performance alone. Most of all, parents should let their kids know that mistakes are a part of learning.”
Some experts say our education system, with its strong emphasis on testing and separation of students into different levels of ability, also bears blame for the disappearance of drive in some kids. “These programs shut down the motivation of all kids who aren’t considered gifted and talented. They destroy their confidence,” says Jeff Howard, a social psychologist. Howard and other educators say it’s important to expose kids to a world beyond homework and tests, through volunteer work, sports, hobbies and other extracurriculum activities.
“The problem of the issue is that many students experience education as irrelevant to their life goals and ambitions,” says Michael Nakkual, a Harvard education professor. The key to getting kids to aim higher at school is to free them of the idea that class work is irrelevant, to show them how doing well at school can actually help them fulfill their dreams beyond it. They need to understand that you have to learn to walk before you can run.
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D.should take part in extracurriculum activities with kids
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A.the motivation was suddenly lost
B.the fear of failure was suddenly gone
C.the learning disability was suddenly lost
D.the fire was suddenly gone
48.All the following can contribute to a sudden lack of ambition except        .
A.learning disability                                      B.classmate pressure
C.emphasis on testing                                    D.extracurricular activities
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A.By punishing kids who don’t display ambition.
B.By emphasizing smartness and high performance.
C.By telling kids that mistakes are a part of learning.
D.By praising the effort and progress they have made.
50.We can infer from the passage that        .
A.children who have lost their ambition will never succeed in life
B.school performance has much to do with students’ later success
C.both the parents and the school are to blame for the lost ambition
D.younger kids learning to walk are more ambitious than older ones

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