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题型:阅读理解-阅读单选 难度:0.65 引用次数:105 题号:17762657

Scientists are developing unmanned planes—called drones—what can collect weather information from the atmosphere.

Weather experts say their weather forecasts would be more accurate if they had information from many parts of the atmosphere. They already place satellites, drones and balloons at different altitudes (高度). And they use radar (雷达) and collect information from equipment on towers. But that information only helps experts predict weather conditions for the next few days. It does not help predict changes in the next few hours. This is very important where sudden, violent storms happen.

So scientists at Oklahoma State University are developing new drones to collect information from more parts of the Earth’s atmosphere. This will help forecasters improve predictions about local weather conditions.

Jamey Jacob is an aerospace engineer and a professor of mechanical and aerospace engineering at Oklahoma State University. He and other scientists at the university are developing small drones that do not cost a lot of money but can fly for hours, collecting information from many atmospheric levels.” Oklahoma is a really good example, because even though we’re already a very weather-dynamic (动态天气的) state, Oklahoma only has two balloon launches a day—one at dawn and one at dusk—from a single location in the state, and that’s where all the weather forecasting information comes from. So that data is really sparse, and it’s difficult for weather experts to get a very good idea about how that weather is changing from these very limited number of data points.”

Phillip Chilson, a professor of meteorology (气象的) at Oklahoma State University, says the drone program should give researchers a low-cost way of understanding storms better, and improve computer-based forecasting. The drone can measure atmospheric conditions, send live video to forecasters, and help search for people hurt in storms. “Our real goal is to try to develop systems. I don’t want to say they will replace weather balloons but there may be that possibility. Researchers still have a lot of work to do before the drones are ready. That includes making sure the drones know how to stay away from other planes.”

1. According to the text, the drones being developed can________.
A.raise people’s interest in science
B.help to improve weather predictions
C.replace weather balloons and satellites
D.examine different altitudes of the Earth
2. The underlined word “sparse” in Paragraph 4 probably means________.
A.limitedB.reliableC.confusedD.correct
3. What does Phillip Chilson think of the drone program?
A.Worried.B.Hopeful.C.Doubtful.D.Satisfied.
4. What can be concluded from the last paragraph?
A.The drones can not be put into use now.
B.It will cost a lot of money to build drones.
C.Researchers find it difficult to design planes.
D.The drone program should be carried out on planes.
5. What is the purpose of the text?
A.To introduce a team of scientists.
B.To explain how unmanned planes work.
C.To report a new way of predicting weather.
D.To give some advice on preparing for storms.

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【推荐1】Fri, Aug 24

LONDON—This Evening and Tonight:

Rain, locally heavy across northwest Scotland.Mostly cloudy but dry in other northern and western areas.Dry with clear spells (持续时间) in more central and eastern parts, but some low cloud and fog will develop.Generally mild with light winds.

Saturday:

Cloud and rain over western Scotland at the beginning will gradually push down over N.Ireland and northwest England.Largely dry, warm with sunny spells elsewhere, once early fog and low cloud clears.

The Nation's Weather

Fri, Aug 24

NEW YORK—Heavy rain was forecast throughout Friday in parts of the Midwest.The heaviest rainfall was over northern Illinois, with more than 4 inches possible around Chicago.

Wet weather was also expected in the plains as the same storm system tracks through the region.

Periods of heavy rain were also forecast for the Northeast as the remnant (剩余部分) of tropical storm Erin moves into the Canadian Maritimes.

Hot weather was expected to continue in the south and west.

Death toll rises to 36 in China typhoon

Wed, Aug 22

BEIJING—At least 36 people were killed by Typhoon Sepat in four provinces in eastern and central China in widespread destruction that also forced the evacuation(撤退) of 1.37 million people.

More than 60,000 homes in the provinces of Fujian, Jiangxi, Zhejiang and Hunan also were destroyed or damaged, Xinhua News Agency said.

Total economic losses in the provinces have reached $ 663 million.

Fujian was the worst-hit province, with 18 people killed, Xinhua said.

Earlier, the storm, named after a Malaysian fish, killed at least one person in Taiwan, and left three dead in the Philippines.

1. On August 25, in N.Ireland and northwest England,   there will be ____.
A.low cloud and fogB.cloud and rain
C.typhoon and floodD.sunshine and mild wind
2. What was the weather like in the south and west of the USA on Friday?
A.It was warm.B.It was rainy.
C.It was foggy.D.It was hot.
3. The storm named Sepat ____.
A.caused one death in the PhilippinesB.killed 18 people in Taiwan
C.caused great economic lossesD.destroyed about 60,000 homes in Fujian
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名校
文章大意:这是一篇说明文。预报天气不仅仅是科学家们的任务,长久以来普罗大众已总结了许多预测天气的方法,文章中介绍了许多种不同天气前的预兆现象。

【推荐2】Not only farmers but scientists have studied weather forecasting. People, for many centuries and in all countries, have studied the weather and tried to make weather forecasts. Sometimes distant objects such as hills and tall trees seem to be very clear and near. This is a sign of much water-vapor in the air, and therefore a rain will probably come.

When distant sounds(such as the noise from a train, birds singing, or people shouting) are very clearly heard, then wet and stormy weather is on the way.

Rings around the sun is a sign of coming rain. Many people feel the coming of wet weather in their bones Their joint(关节)aches. Some birds fly high if fine weather is coming, but they fly very near the ground if rainy weather or a storm is on the way. This as probably because the insects which they are hunting, fly low at that time. If you see a rainbow during rainy weather, this is a sigh that the weather will clear up and become fine. Such rainbows come in the evening if the stars twinkle clearly at night, fine weather will come continue. If a mist appears in the early morning, just about sunrise, the day will be warm.

If the sunset is mostly red in color, the following day will be fine. When big cumulous clouds(积云)appear at sunset, the bad weather will follow the next day.

If circus clouds remain quite still, fine weather will come. If a rainbow appears in the morning, then rainy weather will probably come. Most of the above sayings have been made up by people who have used their eyes and their brains to forecast the weather.

1. Some birds fly high if fine weather is coming, because________.
A.they like fine weather
B.hey can fly high when fine weather is coming
C.they fly high to catch insects
D.they feel very happy
2. In this passage “wet weather” means ________ weather.
A.cloudyB.rainyC.windyD.dry
3. If you see a rainbow during rainy weather, it shows that the weather will clear up and become fine. This because________.
A.there is much water—vapor in the air
B.there is not much water vapor in the air
C.there is not any water-vapor in the air
D.there are all kinds of water-vapor in the air
4. Weather will be fine if________.
A.you see rings rounds the sun
B.you see the distant objects very clear and near
C.you feel pain in your bones
D.the stars twinkle clearly at night
2023-06-19更新 | 44次组卷
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【推荐3】No one can change the weather. Nobody can control the weather. But if we read correctly the signs around us, we can tell what the more important changes in the weather will be. This way of telling what the weather will be like on the following day or two is called weather forecasting.
For many centuries and in all countries, people have studied the weather and tried to make weather forecasting. Rings around the sun are a sign of coming rain. That many people feel their joints(关节) hurt is a sign of wet weather. Some birds fly high if the weather is fine, but they fly near the ground if rainy or stormy weather is _____ If you see a rainbow during rainy weather, this is a sign that the weather will become clear and fine. Such rainbows come in the evening. If the stars twinkle clearly at night, then fine weather will continue. If a fog appears in the morning just above a river, then the day will be warm. If the sunset is mostly red in colour, then the following day will be fine. If a rainbow appears in the morning, rainy weather will probably come.
Most of the above sayings have been made by the people who have used their eyes and brains to make weather forecasting.
1. Which is true about weather forecasting?
A.Weather forecasting is a way of telling what the weather will be like.
B.Weather forecasting is a report about the weather.
C.Weather forecasting is a sign of coming rain.
D.People can change the weather forecasting.
2. Which of the following can be used here to replace the underlined phrase “on the way”?
A.continuingB.reducing.C.coming.D.disappearing.
3. Which of the following signs can tell the weather will probably be rainy?
A.Some birds fly high.
B.A rainbow appears in the morning.
C.The sunset is mostly red in colour.
D.Fogs appear in the morning just above a river.
4. The best title of the passage is _______.
A.Weather forecasting plays an important role in our life
B.Weather forecasting can bring people some signs of weather
C.Weather is forecasted only by eyes and brains.
D.People can predict weather by experience in daily life
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