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题型:阅读理解-阅读单选 难度:0.65 引用次数:138 题号:11627628

You can't always forecast a heavy rain or remember your umbrella. But designer Mikhail Belyaev doesn't think that forgetting to check the weather forecast before heading out should result in you getting wet. That's why he created Lampbrella, a lamp post with its own rain-sensing umbrella.

The designer says he got the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street and saw the street lamps lighting up people trying to hide from the rain. I thought it would be suitable to have a canopy(伞篷)built into a street lamp,” he said.

The Lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella on demand. Sensors(传感器)then make sure that the umbrella offers pedestrians(行人)shelter whenever it starts raining.

According to the designer, the Lampbrella would move at a low speed, in order not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lightning strike. Each Lampbrella would offer enough shelter for several people. Installed(安装)at two meters off the ground, it would only be a danger for the tallest of pedestrians.

While there are no plans to take the Lampbrella into production, Belyaev says he recently introduced his creation to one Moscow Department, and insists his creation could be installed on any street where a lot of people walk but there are no canopies to provide shelter.

1. For what purpose did Belyaev create the Lampbrella?
A.To forecast a heavy rain.
B.To check the weather forecast.
C.To shelter people from the rain.
D.To get people to take an umbrella.
2. What do we know from Belyaev's words in Paragraph 2?
A.He enjoyed taking walks in the rain.
B.It rains a lot in the city of Saint Petersburg.
C.Street lamps are protected by canopies.
D.He came up with his creation from an experience in the rain.
3. What does Paragraph 4 mainly tell us about the Lampbrella?
A.Its moving speed.B.Its safety.
C.Its installation.D.Its appearance.
4. What can be inferred from the last paragraph?
A.The designer is confident that his creation is practical.
B.The designer will open a company to promote his product.
C.The Lampbrella could be put into immediate production.
D.The Lampbrella would be put on show in Moscow.

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文章大意:这是一篇说明文。主要介绍了荷兰Delft University of Technology和德国Karlsruhe University of Applied Sciences组成了一个风筝动力研究小组,同时在意大利的研究人员也在进行相似的实验,针对风能这一古老资源的新改造可能会使风力发电厂的能源产量大幅增加。

【推荐1】The search for new, clean energy sources has occupied the attention of scientists and politicians for years. One common resource for green energy is the wind. A new twist on this old resource could cause the energy output of wind-power plants to rocket.

Standard wind-power plants rely on solid support and generally can only reach a height of 200 meters or so. Higher than that, winds tend to be stronger and more consistent, but the challenge is figuring out how to gain the energy from those winds.

Delft University of Technology in the Netherlands and Karlsruhe University of Applied Sciences in Germany have formed a kite-power research group. The group is working to develop kites with wings connected to electrical generators (发电机) on the ground.

The research group’s goal is to design a kite that can operate on its own for 24 hours. Research has begun, but many challenges remain, including making the generators more efficient and perfecting the automatic flight control and the structure of the kites. Nevertheless in June 2012, they demonstrated that their kites could operate automatically at an altitude of up to 700 meters.

Meanwhile, in Italy, researchers are working on a similar power generator that relies on kites. When the generator, called KiteGen, senses the wind blowing, kites are released from the ends of poles with high-resistance cables (线) to control their height and angle. These cables are able to move the kites if the system senses incoming objects such as planes, helicopters or even individual birds. The kites themselves are light, tough and able to reach fairly high altitudes. They circle around in the wind, which sets the core of the generator in motion, producing electric current.

KiteGen has the potential to be very cost-effective in the long run. After the initial cost of designing and setting up the plant, little additional investment will be necessary, apart from standard maintenance. The plant also requires relatively little space, which makes it ideal for cities and means that multiple plants can be set up to provide even more energy.

Kite power has the potential to greatly improve on current wind-power strategies. In the future, it may be an efficient, cost-effective supplement (补充) to the other sources of energy we use, or even a replacement for some of them.

1. What does the underlined expression “a new twist” probably mean in the first paragraph?
A.A strict standard.B.A challenging task.
C.A strong motivation.D.A clever idea.
2. If the wind-power plants are higher than 200 meters, what is the problem?
A.It is a waste of money.B.It is extremely dangerous.
C.It is hard to attain the energy.D.It is totally unrealistic.
3. Why do both of the researches adopt kites?
A.Kites can fly high.B.Kites are a new trend.
C.Kites are eco-friendly.D.Kites can replace old equipment.
4. What is the author’s attitude towards kite power?
A.Cautious.B.Optimistic.C.Unclear.D.Critical.
2023-03-15更新 | 68次组卷
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【推荐2】India's Prime Minister Narendra Modi on Tuesday developed a series of new high-producing rice species, including herbicide-tolerant(耐除草剂的)rice that can be directly planted into the soil, cutting the huge expenses on water and farm workers.

In India, the world's biggest rice exporter, the traditional method of rice growing requires farmers to grow seeds in nurseries, and then wait for 20 to 30 days before transplanting the small plants by hand into the fields that are ankle-deep in water.

With the new seed species, developed by the state-run Indian Agricultural Research Institute, farmers only need to water the field once to moisten(使湿润)the soil before planting the rice. Besides, the traditional method also uses a lot of water to control weeds as herbicides are costly and often do not distinguish between the rice and the unwanted weeds.

Government scientists said the new rice species contains a gene that would allow farmers to use a common, inexpensive herbicide without worrying about any side effects. “Our focus is very high on new seeds that can be adapted to new conditions, especially in changing climates,” Modi said.

Water conservation is likely to be the main attraction of the new rice species in India, where farmers rely heavily on monsoon(季风)rains. “The traditional method uses 3,000 to 5,000 liters(升)of water to produce 1 kg of rice. The new species could cut water use by at least 50% to 60%,” farmers and government officials say. "For farmers like us, the main concern was the management of water, and the new species takes care of that concern," said Ravindra Kajal, who grows rice on his 9-acre farmland in the northern state of Haryana.

1. What is the advantage of the new rice species?
A.It can remove all the weeds.B.It can be planted in any field.
C.It needs less water to grow.D.It needs less soil to grow.
2. Why can farmers use a common herbicide to the new rice species?
A.Because the new crop species contains herbicide itself.
B.Because the new crop species resists a common herbicide.
C.Because the common herbicide is relatively cheaper.
D.Because the common herbicide can moisten the soil.
3. What makes India consider planting the new rice species?
A.Its climate.
B.Its plentiful funds.
C.Its tradition.
D.Its lack of herbicide.
4. What is the main idea of the text?
A.India has completely changed its rice species.
B.The farmers prefer planting new rice species.
C.India is trying to promote its new rice species.
D.The new rice species produces the most rice in India.
2022-02-24更新 | 57次组卷
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Global reserves of some elements, such as platinum, are supposed to be fully used up within 15 years if the proportion of recycled stocks entering production doesn’t increase. E-waste and EV batteries are currently recycled through processes called pyrometallurgy (火法冶金术) and hydrometallurgy (湿法冶金术). However, they involve burning temperatures with a high energy demand and deep carbon footprint, and poisonous chemicals which are harmful to the environment. Alternatives are therefore being sought.

A team of scientists from the University of Coventry are extending one such alternative. They have been using non-poisonous bacteria to oxidize and recover the precious metals—a process known as “bioleaching”. They have shown that copper is widely recoverable from e-waste, and that all metals present in EV batteries can be recovered by using microbes (微生物). If extended, bioleaching facilities would mean that manufacturers of EV batteries and other electronic goods would be able to recover metals locally, relying less on costly exports to recycling centers abroad.

“At present, a key limitation for e-waste recycling is the lack of certification detailing the types and amounts of metals contained in electronic goods. But with an efficient recycling process appearing, manufacturers have the motivation to use more recycled material in their products, which will change the very design of electronics goods. It’s about closing the loop of a product’s life cycle,” said the leader of the Bioleaching Research Group, Sebastien Farnaud.

Ultimately, bioleaching technology is born out of the idea of creating a truly circular process for the things that we consume. We need to shift from a mindset and economy where we see waste as an end product, to one where there isn’t even a start or an end at all.

1. What do the statistics in Paragraph 1 indicate?
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