题目内容

Since Henry Ford turned it into a mass-market product a century ago, the car has delivered many benefits. It has promoted economic growth, increased social mobility and given people a lot of fun. But the car has also brought many problems. It pollutes the air, creates traffic jams and kills people. An astonishing 1.24 million people die, and as many as 50 million are hurt, in road accidents each year.

Drivers and passengers waste around 90 billion hours in traffic jams each year. In some car-choked cities as much as a third of the petrol used is burned by people looking for a space to park.

Fortunately, a new technology promises to make motoring safer, less polluting and less tendency to hold-ups. “Connected cars”--which may eventually develop into driverless cars but for the foreseeable future will still have a human at the wheel-can communicate wirelessly with each other and with traffic-management systems, avoid walkers and other vehicles and find open parking spots.

Some parts of the transformation are already in place. Many new cars are already being fitted with equipment that lets them keep their distance and stay in a motorway automatically at a range of speeds. Soon, all new cars in Europe will have to be able to warn the emergency services if their on-board sensors(传感器) discover a crash. Singapore has led the way with using variable tolls(道路通行费) to smooth traffic flows during rush-hours; Britain is pioneering “smart motorways”, whose speed limits vary constantly to achieve a similar effect. Combined, these new inventions could create a much more highly effective system in which cars and their drivers are constantly warned of dangers and showed the ways, traffic always flows at the proper speed and vehicles can travel closer together, yet with less risk of crashing.

In the past, more people driving meant more roads, more jams, more death and more pollution. In future, the connected car could offer mankind the pleasures of the road with rather less of the pain.

1.According to Paragraph 2, the problem of parking has resulted in ______.

A. more time on the road

B. a great waste of fuel

C. even heavier traffic jams

D. increased death and injuries

2.What does “a similar effect” in the Paragraph 4 refer to?

A. Reducing traffic jams.

B. Building smart motorways.

C. Setting proper speed limits.

D. Keeping steady traffic flows.

3.What is the author’s attitude towards connected cars?

A. Curious. B. Doubtful.

C. Supportive. D. Disappointed.

4.Which of the following can be the best title of the text?

A. The Future of Cars: Wireless Wheels

B. The Future Traffic Management System

C. The Benefits and Problems of Cars

D. The Promising Future of Car Production

1.B

2.D

3.C

4.A

【解析】

试题分析:文章主要介绍了未来的汽车。汽车给人们带来方便之余,也给人们的生活带来了许多问题,甚至威胁到了人们的生命和安全。幸运的是,一项新科技有望减少污染和拥堵,并使驾驶变得更安全。

1.In some car-choked cities as much as a third of the petrol used is burned by people looking for a space to park.”可知,在一些拥挤的城市里,寻找停车位所耗费的汽油占汽油使用量的三分之一,说明停车造成大量汽油的浪费,故选B。

2.Singapore has led the way with using variable tolls(道路通行费) to smooth traffic flows during rush-hours”可知,新加坡通过使用浮动的道路通行费来疏导车流,英国也正在采取措施来取得类似的效果,故选D。

3.these new inventions could create a much more highly effective system”和第五段“In future, the connected car could offer mankind the pleasures of the road with rather less of the pain.”可知,作者认为这种新的发明能创造出一种更有效的交通体制,在带给人们驾车的乐趣的同时,也会减少事故带来的伤痛,说明作者对这项发明是支持的,故选C。

4.a new technology promises to make motoring safer, less polluting and less tendency to hold-ups. “Connected cars”--which may eventually develop into driverless cars”和第四段“Many new cars are already being fitted with equipment that lets them keep their distance and”与第五段“In future, the connected car could offer...”可知,文章主要讲的是未来的汽车,而不是未来的交通管理系统,故选A。

考点:科技类短文阅读

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Exercise seems to be good for the human brain, with many recent studies suggesting that regular exercise improves memory and thinking skills. But an interesting new study asks whether the apparent cognitive benefits from exercise are real or just a placebo effect — that is, if we think we will be “smarter” after exercise, do our brains respond accordingly? The answer has significant implications for any of us hoping to use exercise to keep our minds sharp throughout our lives.

While many studies suggest that exercise may have cognitive benefits, recently some scientists have begun to question whether the apparently beneficial effects of exercise on thinking might be a placebo effect. So researchers at Florida State University in Tallahassee and the University of Illinois at Urbana-Champaign decided to focus on expectations, on what people anticipate that exercise will do for thinking. If people’s expectations jibe (吻合) closely with the actual benefits, then at least some of those improvements are probably a result of the placebo effect and not of exercise.

For the new study, which was published last month in PLOS One, the researchers recruited 171 people through an online survey system, they asked half of these volunteers to estimate by how much a stretching and toning regimens (拉伸运动) performed three times a week might improve various measures of thinking. The other volunteers were asked the same questions, but about a regular walking program.

In actual experiments, stretching and toning program generally have little if any impact on people’s cognitive skills. Walking, on the other hand, seems to substantially improve thinking ability.

But the survey respondents believed the opposite, estimating that the stretching and toning program would be more beneficial for the mind than walking. The estimates of benefits from walking were lower.

These data, while they do not involve any actual exercise, are good news for people who do exercise. “The results from our study suggest that the benefits of aerobic exercise are not a placebo effect,” said Cary Stothart, a graduate student in cognitive psychology at Florida State University, who led the study.

If expectations had been driving the improvements in cognition seen in studies after exercise, Mr. Stothart said, then people should have expected walking to be more beneficial for thinking than stretching. They didn’t, implying that the changes in the brain and thinking after exercise are physiologically genuine.

The findings are strong enough to suggest that exercise really does change the brain and may, in the process, improve thinking, Mr. Stothart said. That conclusion should encourage scientists to look even more closely into how, at a molecular level, exercise remodels the human brain, he said. It also should encourage the rest of us to move, since the benefits are, it seems, not imaginary, even if they are in our head.

1.Which of the following about the placebo effect is TRUE according to the passage?

A. It occurs during exercise.

B. It has cognitive benefits.

C. It is just a mental reaction.

D. It is a physiological response.

2.Why did the researchers at the two universities conduct the research?

A. To discover the placebo effect in the exercise.

B. To prove the previous studies have a big drawback.

C. To test whether exercise can really improve cognition.

D. To encourage more scientists to get involved in the research.

3.What can we know about the research Cary Stothart and his team carried out?

A. They employed 171 people to take part in the actual exercise.

B. The result of the research removed the recent doubt of some scientists.

C. The participants thought walking had a greater impact on thinking ability.

D. Their conclusion drives scientists to do research on the placebo effect.

4.What might be the best title for the passage?

A. Is it necessary for us to take exercise?

B. How should people exercise properly?

C. What makes us smarter during exercise?

D. Does exercise really make us smarter?

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Service dogs almost never the side of the people they care for. You will see them working on buses, trains and other public systems. But the busy environment found at an airport can even the best trained working dog.

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The school has a piece of equipment that provides the sights, sounds and even the feel of an airplane in flight. Dog trainers say training is based on a simple rule: preparation. Dogs need to be exposed gradually and to the environment, to loud noises, to sounds and other dogs so that when this experience happens to them on a daily basis, they're able to act in a way that they're used to acting and that they don't get .

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