题目
题型：不详难度：来源：
Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. “We’ve been going to the same spot in the Pacific Ocean, and we try and characterize long-term change in the open ocean environment. And one of the key things that we measure is CO2 levels. And we’ve been able to record this increasing quantity of atmosphere CO2 into the ocean.”
Scientists expected that as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.
“As carbon dioxide dissolves in the water or seawater in this case, it forms a weak acid, carbonic acid,” Dore explains. “And therefore, as the concentration of CO2 in the atmosphere goes up and that exchanges with the surface seawater, it drives the pH down, and makes it more acidic.”
The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.
The effect was particular striking at about 250 meters down, and again at 500 meters. Dore and his colleagues came up with two possible explanations. It could be that surface water picked up CO2 and then moved to those depths. Or there could be a biological explanation.
“It’s important to realize that the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic.”
小题1:What can be the best title of the passage?
| A．Scientist Researching Seawater |
| B．Sea Life Facing Danger |
| C．Oceans Becoming More Acidic |
| D．Climate Change Affecting Seawater |
| A．more corals will appear in the sea |
| B．the chemical balance of the seawater is affected |
| C．the surface water is becoming warmer |
| D．the pH of the ocean out here has been increasing |
a. Sea life is endangered.
b. CO2 goes into the surface water.
c. The ocean chemistry is affected.
d. CO2 decreases the pH and makes the seawater more acidic.
e. CO2 levels in the atmosphere go up.
| A．a→b→c→d→e | B．e→b→c→d→a |
| C．a→e→b→c→d | D．e→d→c→b→a |
| A．the expectation of other scientists |
| B．some former theory |
| C．his research and analysis |
| D．a major cause of climate change |
答案
小题1:B
小题2:B
小题3:B
小题4:C
解析
试题分析：一项新的研究已经证实，大气中二氧化碳也在着海洋物质的化学平衡，对海洋生命有着潜在的伤害。二氧化碳气体被海洋吸收，逐渐使海水原来的酸碱平衡被打破，这样的话，海洋生物就失去了生存的环境而面临死亡的危险。
小题1:根据第一段“and now a new study has confirmed that atmosphere CO2 is also affecting the ocean chemistry and potentially harming sea life.”第三段“as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water, with a potentially harmful impact on shellfish and coral in particular.”和最后一段“the oceans are really becoming acidic. And it can have negative impacts on a whole variety of sea life from fish to coral. It’s potentially catastrophic.”可知，文章讲的是大气中二氧化碳含量的升高对海洋生态造成的威胁，故选B。
小题2:根据第三段“as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water”可知，随着二氧化碳含量的增多，越来越多的二氧化碳被海洋吸收，这会影响海水的化学平衡，故选B。
小题3:根据第三、四段“as atmosphere CO2 increased, more and more of the carbon dioxide would be absorbed into the ocean, affecting the chemical balance of the sea water ...As carbon dioxide dissolves in the water or seawater in this case, it forms a weak acid, carbonic acid, it drives the pH down, and makes it more acidic”可知，先是大气中的二氧化碳含量增加，排除A、C；接着是二氧化碳被海水吸收，影响海水的化学平衡，随着酸性物质的形成，海水的PH值下降，给海洋生态环境带来威胁，故选B。
小题4:根据“Montana State University scientist Robert Dore has been researching the water in the Pacific Ocean for almost two decades. ...The seawater samples Dore and his colleagues have analyzed confirm what the theory predicts.”可知，科学家得出的结论是建立在研究和分析的基础之上的，故选C。
核心考点
试题【Rising levels of carbon dioxide in the atmosphere are a major cause of climate c】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
We realized a long, long time ago that nature provides the best blueprint for invention. We’ve borrowed canals from beavers and reflectors from cat’s eyes. Although the words “bionics”(仿生学) became popular only after the 1960s, history shows that nature has always provided ideas on solving everyday problems. Our archives(档案) don’t go back to the time of Leonardo da Vinci and his bird-like flying machines, but we can take you to the late 19th century, where we applied those same principles for building our first practical airplanes.
To prepare for their flight at Kitty Hawk, the Wright brothers studied the movements of pigeons to figure out how they stayed high up when they were heavier than air. Their success inspired scores of successors to improve on the airplane by studying various aspects of nature. One of Orville Wright’s pupils caught and stuffed seagulls to examine their wingspan. Meanwhile, two French inventors examined spinning sycamore(梧桐) seeds in an effort to apply those same motions, reversed, to a helicopter .
Some examples are more obvious than others. The outside of the airplane designed by the Wright brothers looks like a minimalistic(简单抽象艺术) structure. On the other hand, Barney Connett’s fish submarine actually looks like a fish.
Some bio-inspired concepts have yet to be invented. In the 1960s, the US Army commissioned several university professors to conduct research on the motor skills animals in hope of applying those same abilities to tanks. Tanks that run like horses or jump like grasshoppers(蚂蚱)-sounds shocking, doesn’t it? But imagine how life would change if we could achieve that.
小题1:“Cats”, “monkeys” and “giraffes” mentioned in paragraph 1 are examples to show______.
| A．they are highly-evolved species as humans |
| B．animals have skills that humans do not possess |
| C．humans can learn animals’ skills |
| D．they are skillful in different ways |
| A．People carried out a systematic study on pigeons. |
| B．People studied more animals and plants to develop the airplane. |
| C．People could fly their airplane for fun. |
| D．People kept their airplane at a French gallery. |
| A．It has cost a large sum of money. |
| B．It has changed our life. |
| C．It has improved the abilities of tanks |
| D．It has not succeeded yet. |
| A．many inventions get ideas from nature. |
| B．Some animals possess unique skills. |
| C．People should protect nature. |
| D．Bionics is far from perfect |
“Learning should not be forced,”says Marion Godwin, who has taught first grade in Moorestown, N. J. for more than 30 years.“ It should be taught according to what they know and do best—and that is‘ play’. When teaching them, play games and have fun with the subject. And parents should always be looking for‘teachable moments’.”
“You want a child to be a lifelong learner, so you want to show them learning is everywhere,”she says.“If parents take the time to lay a strong educational foundation, their children will keep building on it.”
Introduce children to science with hands-on activities that interest them, such as growing plants from seeds, discussing animals and how to care for pets, and observing the chemical changes that occur during cooking”, she says.
“Sorting activities, simple patterns and counting games are a great way to teach children the basics of math, and taking them on field trips, singing songs and reciting rhymes also are ways to prepare them for the first day of school”, she says.
“I think children are naturals when it comes to computers,” she says.“Let them play educational games on the computer and teach them how to type their first names using the keyboard. When they are more familiar with using the computer, let them find pictures of animals and places on the web. ”
“Don’t criticize the child,” she says. “You can’t force them to learn something. If they don’t get something right, so what? Smile and be happy and make the experience joyful. Parents need to understand that if a child gets something wrong, they may think something is wrong with them. Keep working with them and when they get the right answer make sure you tell them how hard they worked to get the correct answer. ”
小题1:Marion Godwin tells us that we should teach the children according to their_____ .
| A．subjects and needs |
| B．level and interest |
| C．teachable moments |
| D．strong educational foundation |
| A．keep a pet each and care for it |
| B．do some cooking every day |
| C．learn science with interesting hand-on activities |
| D．learn from the farmers and grow plants from seeds |
| A．learn all by themselves |
| B．play more computer games |
| C．learn to type their first names |
| D．learn online under instructions |
| A．How to prepare your children for kindergarten |
| B．Learning should not be forced |
| C．How to be a lifelong learner |
| D．Learning is everywhere |
But the commission’s report says there does not seem to be an impact on poorer communities. The commission found there was no significant change in the application rate to the key universities, such as Oxford or Cambridge. The decline （下降）in England has not been mirrored in other parts of the UK where fees have not been raised, and the drop can only partly be explained by falling numbers of young people in the population. Students from Scotland attending Scottish universities do not pay fees, while the Welsh Assembly says it will pay fees above ￡3,465 for Welsh students attending UK institutions.
The average tuition fee at English universities this year is ￡ 8,385, rising to ￡ 8,507 next year. UK and EU students have access to govemment-backed loans to pay the fees. And the survey of 1,000 pupils aged 15-18, carried out this April, found that the majority expected to go on to higher education as people continue to understand that university remains a good long term investment in their future.
A spokeswoman at the Department for Business, Innovation and Skills which is responsible for universities, said:“Students shouldn’t be forced to put off going to university for financial reasons. Most students will not have to pay in advance, and no one will have to start paying back their student loan until they start to earn at least ￡ 2l,000 per year.”
小题1:From the first paragraph, we know that __________________ .
| A．it’s a trend that English students are dropping out of school |
| B．the rising tuition fees have a great effect on English students |
| C．the lost English students will find their way back |
| D．many English students are missing the final examinations |
| A．Because the students live in poor communities. |
| B．Because Welsh students will pay fees above￡3,465. |
| C．Because education is free for Scottish students. |
| D．Because there are less young students in the area. |
| A．Most of them are willing to go to university. |
| B．They feel universities takes up too much time. |
| C．They will stop applying for university places this autumn. |
| D．They are anxious to go to a key university. |
| A．put off going to university |
| B．reduce the anxiety about the rising fees |
| C．pay for the fees in advance |
| D．pay back their loan soon after graduation |
As our country is trying to reduce the obesity numbers, eating disorder statistics continue to increase due to the push for thinner people. While obesity is a serious medical condition that can lead to many health problems, many of us try to lose weight for appearance purposes. Children as young as elementary school age have begun to worry about the numbers that appear on the scale. In my opinion, it seems that “fat” has become the new“ugly”.
Two weeks ago, 37-year-old Wisconsin television reporter Livingston, who is 235 pounds, received an email from a man named Krause. In the email Krause attacked her, writing,“Your physical condition hasn’t improved for many years. Surely you don’t consider yourself a suitable example for this community’s young people, girls in particular.”
Today, it seems that a vast majority of people care more about how they look and appear to their peers rather than what is inside. The truth is that every person is built differently; we all come in different shapes and sizes. Just because someone is heavier, that doesn’t mean they eat large amounts of junk food around the day. Likewise, even though a person is thin, that doesn’t mean they are necessarily healthy and fit.
If you are reading this and you struggle with your weight or your appearance, please recognize that you are beautiful and special in your own way. You are worth so much more than you realize, and even if I don’t know you, understand that I respect and support you. Beauty is not defined by size; it is defined by how we treat others and respect ourselves. In the words of the talented film actress Kirstie Alley, “There’s a lot more to life than how fat or thin you are.”
小题1:With so many people losing weight, it will end in .
| A．models’ and actors’ appearance in ads |
| B．the fall of media and entertainment industries |
| C．more and more people becoming obesity |
| D．more people’s suffering from eating disorder |
| A．intelligence | B．weight | C．patience | D．strength |
| A．people think “fat” looks ugly |
| B．fat people are becoming cleverer |
| C．physical condition is good |
| D．young people never follow example |
| A．people should pay attention to the appearance |
| B．there is no need for any people to go on diet |
| C．people are beautiful when they concern others |
| D．there’s always someone who understands and supports you |
Meanwhile, the state’s investment(投资) in public higher education has dropped over the past three decades, and now ranks 22nd in the country.That’s despite having the country’s largest public higher education system, the report said.
“It"s a collapse(衰退),” said Thomas Mortenson, author of the report, who is an independent analyst living in Iowa and a senior scholar at the Pell Institute for the Study of Opportunity in Higher Education in Washington, D. C. “Ranking 49th out of 50 states is an indication that shows the quality of the state’s educational has become much worse in recent decades.” Mortenson said in the report.As of 2007, California ranked 14th in the United States in terms of college educated members of the workforce over 25 years of age, a drop from eighth place in 1981, the report showed.
Mortenson said that California has never been the state of high status in education and economy while other states have made greater gains in building a college-educated workforce.
The California Faculty Association is using the report’s findings to criticize Governor Arnold Schwarzenegger’s proposed funding cuts for education.
Struggling with a 14.8-billion-dollar state budget deficit(赤字), Schwarzenegger has proposed a combination of sales tax increases, borrowing and major budget cuts, including cutting billions of dollars from the state’s education budget.
小题1:The passage is mainly about __________.
| A．California’s worse situation in higher education |
| B．the dangerous situation in California |
| C．California’s research on education and economy |
| D．funding cuts for high education in California |
| A．investment in higher education has dropped in all states |
| B．Thomas Mortenson works at California Faculty Association |
| C．governor in California agreed to spend more money on education |
| D．California had higher quality in higher education in the past |
| A．the number of adults has decreased recently |
| B．the result of report has been published late |
| C．the money to invest in education has been cut |
| D．the progress in other states has been made |
| A．Arnold Schwarzenegger | B．Thomas Mortenson |
| C．the Pell Institute | D．California Faculty Association |
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