题目列表(包括答案和解析)
Half of the world’s population is affected by Asian monsoons（季风）, but monsoons are difficult to predict. American researchers have put together a 700-year record of the rainy seasons, which is expected to provide guidance for experts making weather predictions.
Every year, damp air masses，known as monsoon，produce large amounts of rainfall in India, East Asia, Northern Australia and East Africa. All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.
According to Edward Cook , a weather expert at Columbia University in New York., the complex nature of the climate systems across Asia makes monsoons hard to predict. In addition, climate records for the area are too recent and not detailed enough to be of much use. Therefore, he and a team of researchers spent more than fifteen years traveling across Asia, looking for trees old enough to provide long-term records. They measured the rings, or circles, inside thousands of ancient trees in more than 300 places.
Rainfall has a direct link to the growth and width of rings on some kinds of trees. The researchers developed a document they are calling a Monsoon Asia Drought Atlas. It shows the effect of monsoons over seven centuries, beginning in the 1300s.
Professor Cook says the tree-ring records show periods of wet and dry weather. “If the monsoon basically fails or is a very weak one, the trees affected by monsoons at that location might put on a very narrow ring. But if the monsoon is very strong, the trees affected by that monsoon might put on a wide ring for that year. So, the wide and narrow ring widths of the chronology that we developed in Asia provide us with a measure of monsoon variability.” With all this information, researchers say they can begin to improve computer climate models for predicting the behavior of monsoons.
“There has been widespread famine and starvation and human dying in the past in large droughts. And on the other hand, if the monsoon is particularly heavy, it can cause extensive flooding.” said Eugene Wahl, a scientist with America’s National Oceanic and Atmospheric Administration. “So, to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for climate science.”
1.What’s the passage mainly about？
A. The effects of Asian monsoons.
B. The necessity of weather forecast.
C. The achievements of Edward cook.
D. A breakthrough in monsoon prediction.
2.It is difficult for experts to predict Asian monsoons because _______.
A. it is hard to keep long-term climate records.
B. they are formed under complex climate systems.
C. they influence many nations.
D. there is heavy rainfall in Asia.
3.What can be inferred from the passage?
A. Long and detailed climate records can offer useful information for monsoon research.
B. The Monsoon Asia Drought Atlas has a monsoon record for about 1,300 years.
C. The trees affected by monsoon grow fast if the monsoon is weak.
D. The rainfall might be low although the monsoon is strong in monsoon-affected areas.
4.According to Professor Cook, the rings of the trees _______.
A. determine the regional climate.
B. have a great influence on the regional climate.
C. offer people information about the regional climate.
D. reflect all kinds of regional climate information.
5.Which of the following best describes the tone of this passage?
A. Matter-of –fact B. Pessimistic C. Humorous D. Friendly.
There is no doubt that Apple is well aware of the increased competition in the market and could be in a hurry to put another product out there, said Ramon Llamas, senior research analyst at IDC Mobile Devices Technology and Trends. Given its history with product launches and business policy, though, Apple probably isn’t going to rush an iPhone release simply to put it on shelves, he said.
“If you’re Tim Cook (CEO of Apple), you’re thinking if you want to pay more attention to how to keep growing that bottom line and keep investors(投资人) happy, or continue with the same approach from Apple, which is do what we can do and manage products and releases in the best way they can work for us. Apple usually does things in their own time, and I’m having a hard time buying this May or June timeline.” Llamas told Mac News World.
While it’s probable that Apple is surely in a testing stage for its next smartphone, consumers likely have a standard wait for the finished product, said Colin Gibbs, analyst at GigaOm Pro.
“It typically takes a year or longer to create a state-of-the-art smartphone, so no one should be surprised Apple is in the testing stages with the next iPhone. And while it’s possible that Apple could launch the next iPhone this spring or summer, I’m not expecting to see it until a little later in the year,” he told Mac News World.
When it does launch, though, it could be in a variety of colors, said Gibbs. “Apple has already tested the waters with releasing colored products when it revamped (更新，翻新）its iPod line last fall, so it is understood that it would want the new change with its smartphone, as well”.
“I wouldn’t be surprised if the new iPhone becomes available in some new colors,’’ he said. “That could be done pretty cheaply, and it would give Apple a new marketing angle.”
1.According to Ramon Llamas, Apple always ______.
A. tries to please its investors
B. rushes to put new products to market
C. ignores the fierce market competition
D. does things as planned
2.As for the next iPhone, Colin Gibbs didn’t mention ______.
A. the stage of its being tested
B. the rough time of its being released
C. the function to be improved
D. the wide variety of its color
3.What’s Colin Gibbs’ attitude towards the next iPhone?
A. Disapproving. B. Indifferent (漠不关心的). C. Doubtful. D. Objective.
4.This passage is presented in the form of ______.
A. stories B. comments C. advertisements D. debates
It is only during the last few years that man has generally realized that in the world of nature a balance exists between all forms of life. No living thing can exist by itself. It is part of a system in which all forms of life are joined together. If we change one part of the nature order, this will almost certainly bring about changes in some other parts.
The cutting of forests reduced the supply of oxygen. The killing of weeds and insects by chemicals led to the wide-spread poisoning of animals and birds. The throwing of waste products into the ocean hurt life in the sea, while waste gases changed the chemical balance of the atmosphere and shut out some of the sun’s necessary life-giving rays.
And so we could go on adding more examples until in despair(绝望) we might feel like giving up the struggle to control these harmful human activities. Man is very clever at changing the world around him to satisfy his immediate needs, but he is not so clever at looking far ahead, or at thinking about what the future results of his action might be. Man may well destroy himself because of his silly action.
【小题1】The first paragraph tells us that _____.
| A．all living things in nature depend on each other |
| B．everything in nature can’t exist without the help of man |
| C．man has known the importance of the balance of nature for a long time |
| D．no living thing can live naturally |
| A．all forms of life belong to a system in which all the parts can be changed for one another |
| B．it is only during the last few years that man has generally known the balance of nature |
| C．there are some living things which can exist by themselves without change |
| D．we can’t change one form of life without destroying the balance of nature |
| A．man is always anxious to control his activities within limits |
| B．man is always too eager in planning for distant future |
| C．man often fails to think about their future results of his action |
| D．man often feels that he will have to give up in despair |
| A．Cutting down woods does little harm to human beings. |
| B．Man has to pay much more attention to the future results of his present action. |
| C．Oxygen comes from forests. |
| D．The passage tells us to try our best to get as much as possible immediately. |
Half of the world’s population is affected by Asian monsoons (季风), but monsoons are difficult to predict. American researchers have put together a 700-year record of the rainy seasons, which is expected to provide guidance for experts making weather predictions.
Every year, moist (潮湿的) air masses，known as monsoon，produce large amounts of rainfall in India, East Asia, Northern Australia and East Africa. All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.
According to Edward Cook, a weather expert at Columbia University in New York, the complex nature of the climate systems across Asia makes monsoons hard to predict. In addition, climate records for the area are too recent and not detailed enough to be of much use. Therefore, he and a team of researchers spent more than fifteen years traveling across Asia, looking for trees old enough to provide long-term records. They measured the rings（年轮）, or circles, inside thousands of ancient trees in more than 300 places.
Rainfall has a direct link to the growth and width of rings on some kinds of trees. The researchers developed a document they are calling a Monsoon Asia Drought Atlas. It shows the effect of monsoons over seven centuries, beginning in the 1300s.
Professor Cook says the tree-ring records show periods of wet and dry weather. “If the monsoon basically fails or is a very weak one, the trees affected by monsoons at that location might put on a very narrow ring. But if the monsoon is very strong, the trees affected by that monsoon might put on a wide ring for that year. So, the wide and narrow ring widths of the chronology（大事年表） that we developed in Asia provide us with a measure of monsoon variability.” With all this information, researchers say they can begin to improve computer climate models for predicting the behavior of monsoons.
“There has been widespread famine and starvation and human dying in the past in large droughts. And on the other hand, if the monsoon is particularly heavy, it can cause extensive flooding.” said Eugene Wahl, a scientist with America’s National Oceanic and Atmospheric Administration. “So, to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for climate science.”
【小题1】What’s the passage mainly about？
| A．The effects of Asian monsoons. | B．The necessity of weather forecast. |
| C．The achievements of Edward cook. | D．A breakthrough in monsoon prediction. |
| A．it is hard to keep long-term climate records. |
| B．they are formed under complex climate systems. |
| C．they influence many nations. |
| D．there is heavy rainfall in Asia. |
| A．Long and detailed climate records can offer useful information for monsoon research. |
| B．The Monsoon Asia Drought Atlas has a monsoon record for about 1,300 years. |
| C．The trees affected by monsoon grow fast if the monsoon is weak. |
| D．The rainfall might be low although the monsoon is strong in monsoon-affected areas. |
| A．determine the regional climate. |
| B．have a great influence on the regional climate. |
| C．offer people information about the regional climate. |
| D．reflect all kinds of regional climate information. |
| A．It is a great achievement in climate science. |
| B．It should include information about human life in the past. |
| C．It has analysed moisture models world wide, |
| D．It will help people prevent droughts and floods. |
| A．Matter-of –fact | B．Pessimistic | C．Humorous | D．Friendly. |
Half of the world’s population is affected by Asian monsoons (季风), but monsoons are difficult to predict. American researchers have put together a 700-year record of the rainy seasons, which is expected to provide guidance for experts making weather predictions.
Every year, moist (潮湿的) air masses，known as monsoon，produce large amounts of rainfall in India, East Asia, Northern Australia and East Africa. All this wet air is pulled in by a high pressure area over the Indian Ocean and a low pressure area to the south.
According to Edward Cook, a weather expert at Columbia University in New York, the complex nature of the climate systems across Asia makes monsoons hard to predict. In addition, climate records for the area are too recent and not detailed enough to be of much use. Therefore, he and a team of researchers spent more than fifteen years traveling across Asia, looking for trees old enough to provide long-term records. They measured the rings（年轮）, or circles, inside thousands of ancient trees in more than 300 places.
Rainfall has a direct link to the growth and width of rings on some kinds of trees. The researchers developed a document they are calling a Monsoon Asia Drought Atlas. It shows the effect of monsoons over seven centuries, beginning in the 1300s.
Professor Cook says the tree-ring records show periods of wet and dry weather. “If the monsoon basically fails or is a very weak one, the trees affected by monsoons at that location might put on a very narrow ring. But if the monsoon is very strong, the trees affected by that monsoon might put on a wide ring for that year. So, the wide and narrow ring widths of the chronology（大事年表） that we developed in Asia provide us with a measure of monsoon variability.” With all this information, researchers say they can begin to improve computer climate models for predicting the behavior of monsoons.
“There has been widespread famine and starvation and human dying in the past in large droughts. And on the other hand, if the monsoon is particularly heavy, it can cause extensive flooding.” said Eugene Wahl, a scientist with America’s National Oceanic and Atmospheric Administration. “So, to get a sense of what the regional moisture patterns have been, dryness and wetness over such a long period of time in great detail, I would call it a kind of victory for climate science.”
1.What’s the passage mainly about？
A．The effects of Asian monsoons. B．The necessity of weather forecast.
C．The achievements of Edward cook. D．A breakthrough in monsoon prediction.
2.It is difficult for experts to predict Asian monsoons because _______.
A．it is hard to keep long-term climate records.
B．they are formed under complex climate systems.
C．they influence many nations.
D．there is heavy rainfall in Asia.
3.What can be inferred from the passage?
A．Long and detailed climate records can offer useful information for monsoon research.
B．The Monsoon Asia Drought Atlas has a monsoon record for about 1,300 years.
C．The trees affected by monsoon grow fast if the monsoon is weak.
D．The rainfall might be low although the monsoon is strong in monsoon-affected areas.
4.According to Professor Cook, the rings of the trees _______.
A．determine the regional climate.
B．have a great influence on the regional climate.
C．offer people information about the regional climate.
D．reflect all kinds of regional climate information.
5.What do we know about the research according to Eugene Wahl?
A．It is a great achievement in climate science.
B．It should include information about human life in the past.
C．It has analysed moisture models world wide,
D．It will help people prevent droughts and floods.
6.Which of the following best describes the tone of this passage?
A．Matter-of –fact B．Pessimistic C．Humorous D．Friendly.
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