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Cars are responsible for most of the smog in cities，______（这已经对环境造成了严重的污染)．

Cars are responsible for most of the smog in cities，______(这已经对环境造成了严重的污染)．

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发布时间：2021-07-27

更多“Cars are responsible for most of the smog in cities，______（这已经对环境造成了严重的污染)．”相关的问题

第1题

请根据短文内容，回答题。 Virtual DriverDriving involves sharp eyes and keen ears, analyzing

请根据短文内容，回答题。

Virtual Driver

Driving involves sharp eyes and keen ears, analyzing with a brain, and coordination between hands, feet and brain. A man has sharp eyes and keen ears, analyzes through his brain, and maintains coordination between his hands and brains. He can control a fast-moving car with different parts of his body. __________ (46) Apparently there isn&39;t anyone in the driver&39;s cab, but there is in fact a virtual driver. This virtual driver has eyes, brains, hands and feet too. The minicameras on each side of the car are its eyes and are responsible for observing the road conditions ahead of it as well as the traffic to its left and right. If you open the boot, you can see the most important part of the automatic driving system: a built-in computer. __________ (47) The brain of the car is responsible for calculating the speeds objects surrounding the car are moving at,analyzing their position on the road, choosing the right path, and giving orders to the wheel and the control system.＜br＞

In comparison with the human brain, the virtual driver&39;s best advantage is that it reacts quickly.＜br＞

__________ (48) However, it takes the world&39;s best racecar driver at least one second to react, and this doesn&39;t include the time he needs to take action.＜br＞

With its rapid reaction and accurate control, the virtual driver can reduce the accident rate on expressways considerably. In this case, is it possible for us to let it have the wheel at any time and in any place？ __________ (49). With its limited ability to recognize things, the car can now only travel on expressways.＜br＞

The intelligent car determines its direction by the clear lines that mark the lanes clearly and recognizes vehicles according to their regular shapes. __________ (50). This being the case4,people still have high hopes about driverless cars, and think highly intelligent cars are what the cars ture should be like.＜

第46题__________ 查看材料

A.Experts say that we cannot do that just yet

B.In the near future， intelligent cars will be put into commercial operation

C.This is the brain of the car

D.But how does an intelligent car control itself？

E.It completes the processing of the images sent by the cameras within 100 milliseconds

F.However， it cannot recognize moving people and bicycles on ordinary roads that have no clear markings on them

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第2题

听力原文：There is increasing scientific evidence that large cars cause more highway accide

听力原文： There is increasing scientific evidence that large cars cause more highway accidents than small cars. In the news recently was the story of a woman who died of a heart attack while driving her station wagon. The car was moving so fast that it went through the highway-dividing fence, resulting in a collision in which five people died. Those unnecessary deaths are attributable in part to the woman's choice of a large automobile. A lighter and smaller car probably wouldn't have gone through the fence, because the heavier the ear, the greater the force it will have in a collision. Furthermore, even if the lighter car had broken through the fence, its remaining energy would have been much less, and this would have reduced the chances of serious injury or death. Because of its small size, it might have missed the other car completely. The present design of the oversized automobile is largely responsible ant only for the increasing death toll on the highway but also for the rapid depletion of our resources of petroleum, for the pollution of our environment, for urban sprawl, and for the congestion and inconvenience of our cities.

(30)

A．The story of a woman who died of a heart attack.

B．The story of a car going through the highway-dividing fence.

C．The story of a collision in which five people died.

D．Large cars cause more highway accidents than small cars.

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第3题

听力原文：Some people argue that the pressure on international sportsmen and sportswomen ki

听力原文： Some people argue that the pressure on international sportsmen and sportswomen kills the essence of sport -- the pursuit of personal excellence. Children kick a football around for fun. When they get older and play for local school teams, they become competitive but they still enjoy playing. The individual representing his country cannot afford to think about enjoying himself. He has to think only about winning. He is responsible for an entire nation's hopes, dreams and reputation.

A good example is the football World Cup. Football is the world's most important sport. Winning the World Cup is perhaps the summit of international sporting success. Mention "Brazil" to someone and the chances are that he'll think of football. In a sense, winning the World Cup "put Brazil on the map".

(30)

A．Children can have fun from it.

B．People can achieve personal excellence from it.

C．The winner will be greatly honored.

D．It can realize the dreams of an entire nation.

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第4题

Iris Rossner has seen eastern German customers weep for joy when they drive away in shiny,

new Mercedes—Benz sedans. "They have tears in their eyes and keep saying how lucky they are," says Rossner, the Mercedes employee responsible for post-delivery celebrations. Rossner has also seen the French pop corks on bottles of champagne as their national flag was hoisted above a purchase and she has seen American business executives, Japanese tourists and Russian politicians travel thousands of miles to a Mercedes plant in southwestern Germany when a classic sedan with the trademark three-pointed star was about to roll off the assembly line and into their lives. Those were the good old days at Mercedes, an era that began during the economic miracle of the 1960s and ended in 1991. Times have changed. "Ten years ago, we had clear leadership in the market," says Mercedes spokesman Horst Krambeer, "But over this period, the market has changed drastically. We are now in a pitched battle. The Japanese are partly responsible, but Mercedes has had to learn the hard way that even German firms like BMW and Audi have made efforts to rise to our standards of technical proficiency."

Mercedes experienced one of its worst years ever in 1992. The auto maker's worldwide car sales fell by 5 percent from the previous year, to a low of 527,500. Before the decline, in 1988, the company could sell close to 600,000 cars per year. In Germany alone, there were 30,000 fewer new Mercedes registrations last year than in 1991. As a result, production has plunged by almost 50,000 cars to 529, 400 last year, a level well beneath the company's potential capacity of 650,000. Mercedes's competitors have been catching up in the U.S., the world's largest car market. In 1986, Mercedes sold 100,000 vehicles in America; by 1991, the number had declined to 39,000. Over the last two years, the struggling company has lost a slice of its U.S. market share to BMW, Toyota and Nissan. And BMW outsold Mercedes in America last year for the first time in its history. Meanwhile, just as Mercedes began making some headway in Japan, a notoriously difficult market, the Japanese economy fell on hard times and the company saw its sales decline by 13 percent in that country.

Revenues(收益) will hardly improve this year, and the time has come for getting down to business. At Mercedes, that means cutting payrolls, streamlining production and opening up to consumer needs. Revolutionary steps for a company that once considered itself beyond improvement.

The author's intention in citing various nationalities' interests in Mercedes is to illustrate Mercedes' ______.

A．sale strategies

B．market monopoly

C．superior quality

D．past record

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第5题

How Global Warming WorksGases in the Earth's atmosphere act like glass in a greenhouse-tra

How Global Warming Works

Gases in the Earth's atmosphere act like glass in a greenhouse-trapping heat and making life on Earth possible. But there is a delicate balance. Burning coal, oil and natural gas increases atmospheric concentrations of these gases. Over the past century, increases in industry, transportation, and electricity production have increased gas concentrations in the atmosphere faster than natural processes can remove them leading to human-caused warming of the globe.

The Sources Of Global Warming

The major source of global warming is carbon dioxide pollution from power plants, auto mobiles, and industry. Another source is global deforestation.

Power plants are responsible for more than a third of U. S. CO2emissions, yet there are no caps on CO2emissions from power plants or any other industry.

Gas guzzling cars and light trucks are also responsible for a third of U.S. CO2emissions. Current regulations allow for very inefficient vehicles which spew tons of CO2

Trees remove carbon dioxide from the air as they grow. When they are cut and burned that CO2is released back into the atmosphere. Massive deforestation around the globe is releasing large amounts of CO2and decreasing the forests' ability to take CO2from the atmosphere.

Solutions

The U. S. , with only four percent of the world's population, is responsible for 22 percent of the world's greenhouse gas emissions. Fortunately, solutions exist to cut our global warming emissions. Decision makers in the United States should take the following steps.

Increasing fuel efficiency standards for cars and light trucks would cut millions of tons of CO2pollution as well as decreasing dependence on foreign oil.

Putting a cap on CO2from power plants would cut millions of tons of CO2pollution as well as decreasing pollution that causes acid rain, smog, and respiratory illness.

Shifting investment from fossil fuels like coal and oil to renewable energy and energy efficiency would allow cleaner, more sustainable sources of energy to take their rightful place as market leaders.

Ratification of the Kyoto Protocol would be a modest but important first step to ward international emissions reductions.

The Evidence

Recently, alarming events that are consistent with scientific predictions about the effects of climate change have become more and more commonplace. The global average temperature has increased by about 0.5°C and sea level has risen by about 10 inches (25cm) in the past century. Official confirmation came in 1995, when the Intergovernmental Panel on Climate Change, an officially appointed international panel of over 2,500 of the world's leading scientific experts, found that evidence suggests a human influence on the global climate.

The following are events which consistent with scientists predictions of the effects of global warming:

The past two decades have witnessed a stream of new heat and precipitation re cords. The 10 hottest years on record have all occurred since 1980, the hottest year ever on record is 1997, and the hottest January through July on record occurred in 1998. Glaciers are melting around the world. Alaska's Columbia Glacier has retreated more than eight miles in the last 16 years while temperatures there have increased. A section of an Antarctic ice shelf as big as the District of Columbia broke off.

Severe floods like the devastating Midwestern floods of 1993 and 1997 are becoming more common.

Infectious diseases are moving into new areas as seen in the recent outbreaks of Dengue fever in Texas and Malaria in New Jersey.

The Opposition

The Global Climate Coalition, a powerful coalition of oil, power, and auto companies has followed the lead of tobacco companies by denying the harm they ca

A．Y

B．N

C．NG

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第6题

根据下列材料回答下列各题。 Some people argue that the pressure on international sportsme

n and sportswomen kills theessence(真谛)of sporhe pursuit of personal excellence．Children kick a football aroundfor fun．When they get older and play for local school teams，theyBecome competitiveBut theystill enjoy playing．The individual representing his country cannot afford to think about enjoyinghimself，he has to think only about winning．He is responsible for entire nation's hopes，dreams and reputation． A good example is the football World Cup．Football is the world’s most important sport．Winning the World Cup is perhaps the summit of international sporting SUCCESS．Mention Ar—gentina(阿根廷)to someone and the chances are that he’11 think of football．In a sense，win。ning the World Cup put Argentina on the map． Sports fans and supporters get quite unreasonable about the World Cup．People in Eng—land felt that their country was somehow important after they won in l966．Last year thousandsof Scots sold their cars，and even their houses，and spent all their money traveling to Argenti—na，where the finals were played． So，am I arguing that international competition kills the idea of sport？Certainly not!Dothe Argentinian reallyBelieve thatBecause eleven of their men proved the most skillful at foot—ball，their nation is in every wayBetter than all others？Not really，but it's nice to know thatyou won and that in one way at least your country is theBest．（）In the second paragraph，the word“summit”means“_________”．

A.highest point

B.mountain top

C.award

D.summary

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第7题

How Global Warming WorksGases in the Earth's atmosphere act like glass in a greenhouse—tra

How Global Warming Works

Gases in the Earth's atmosphere act like glass in a greenhouse—trapping heat and making life on Earth possible. But there is a delicate balance. Burning coal, oil and natural gas increases atmospheric concentrations of these gases. Over the past century, increases in industry, transportation, and electricity production have increased gas concentrations in the atmosphere faster than natural processes can remove them leading to human-caused warming of the globe.

The Sources Of Global Warming

The major source of global warming is carbon dioxide pollution from power plants, automobiles, and industry. Another source is global deforestation.

Power plants are responsible for more than a third of U.S. CO2 emissions, yet there are no caps on CO2 emissions from power plants or any other industry.

Gas guzzling cars and light trucks are also responsible for a third of U.S. CO2 emissions. Current regulations allow for very inefficient vehicles which spew tons of CO2.

Trees remove carbon dioxide from the air as they grow. When they are cut and burned CO2 is released back into the atmosphere. Massive deforestation around the globe is releasing large amounts of CO2 and decreasing the forests' ability to take CO2 from the atmosphere.

Solutions

The U.S., with only four percent of the world's population, is responsible for 22 percent of the world's greenhouse gas emissions. Fortunately, solutions exist to cut our global warming emissions. Decision makers in the United States should take the following steps.

Increasing fuel efficiency standards for cars and light trucks would cut millions of tons of CO2 pollution as well as decreasing dependence on foreign oil.

Putting a cap on CO2 from power plants would cut millions of tons of CO2 pollution as well as decreasing pollution that causes acid rain, smog, and respiratory illness.

Ratification of the Kyoto Protocol would be a modest but important first step toward international emissions reductions.

The Evidence

Recently, alarming events that are consistent with scientific predictions about the effects of climate change have become more and more commonplace. The global average temperature has increased by about 0.5℃ and sea level has risen by about 10 inches(25 cm) in the past century. Official confirmation came in 1995, when the Intergovernmental Panel on Climate Change, an officially appointed international panel of over 2,500 of the world's leading scientific experts, found that evidence suggests a human influence on the global climate.

The following are events which consistent with scientists' predictions of the effects of global warming:

Glaciers are melting around the world. Alaska's Columbia Glacier has retreated more than eight miles in the last 16 years while temperatures there have increased. A section of an Antarctic ice shelf as big as the District of Columbia broke off.

Severe floods like the devastating Midwestern floods of 1993 and 1997 are becoming more common.

Infectious diseases are moving into new areas as seen in the recent outbreaks of Dengue fever in Texas and Malaria in New Jersey.

The Opposition

The Global Climate Coalition, a powerful coalition of oil, power, and auto companies has followed the lead of tobacco companies by denyi

A．Y

B．N

C．NG

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第8题

With unemployment rising and housing costs still high, cities around the country are exper

iencing a new and sudden wave of homelessness. Shelters are overflowing, and more people this year are sleeping on floors in dingy social service centers, living in cars or spending nights on the streets.

In New York, Boston and other cities, homelessness is at record levels, a consequence of a faltering (摇晃的) economy that has crumbled even further after the Sept. 11 attacks.

A survey by the U.S. Conference of Mayors released last week found that requests for emergency shelter in 27 cities had increased an average of 13 percent over last year. The report said the increases were 26 percent in Trenton; 25 percent in Kansas City, Mo; 22 percent in Chicago; 20 percent in Denver; and 20 percent in New Orleans.

An unusual confluence of factors seems to be responsible for the surge. Housing prices, which soared in the expansion of the 1990's, have not gone down, even though the economy has tumbled. A stream of layoffs has newly unemployed people taking low-wage jobs that might have otherwise gone to the poor. Benefits for welfare recipients are expiring under government imposed deadlines. And charitable donations to programs that help the disadvantaged are down considerably, officials around the country said, because of the economy and the outpouring of donations for people affected by Sept. 11.

"This is an unprecedented convergence (集中) of calamities (灾难)," said Xavier De Souza Briggs, an assistant professor of public policy at the John F. Kennedy School of Government at Harvard. "It's really a crisis."

More than half the cities surveyed by the mayors' group reported that in the last year people had remained homeless longer, an average of six months.

There is no total number for the homeless nationwide. Experts said it was difficult to compare the situ- ation with statistics in previous decades, because counting methods have improved. Yet, several experts said they believed that the increases reported by cities like Boston and Chicago reflected a national trend.

"My impression is that there is more homelessness now than there was 20 years ago." Gary Burtless, an economist at the Brookings Institution, said, adding that he believed that economic factors were not the sole explanation.

"I think that there must be a greater segment of our population that has tenuous connections to family and friends, and therefore has fewer resources to fall back on when something very bad happens like when they lose their job." he said.

Which of the following is NOT a reason for the increase of homelessness？

A．Unemployment.

B．Housing prices.

C．Sept. 11 attacks.

D．Floods.

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第9题

Some people argue that pressures on international sportsmen and sportswomen kill the essence of sport－the pursuit of

Some people argue that pressures on international sportsmen and sportswomen kill the essence of sport-the pursuit of personal excellence. Children kick a football around for fun. When they get older and play for local school teams, they become competitive but they still enjoy playing. The individual representing his country can not afford to think about enjoying himself or herself; he or she has to think only about winning; he or she is responsible for an entire nation' s hopes, dreams and reputation.

A good example is the football World Cup. Football is the world' s most important sport. lt is even more important now that the United States is seriously taking it up. Winning the World Cup is perhaps the summit of international sporting success. Mention "Argentina" to someone and the chances are that he'll think of football. ln a sense, winning the World Cup "put Argentina on the map. "

Sports fans and supporters get quite irrational about the World Cup. People in England felt that their country was somehow important after they won in 1966. Last year thousands of Scots sold their cars, and even their houses, and spent all their money traveling to Argentina, where the finals were played. So, am I arguing that international competition kills the idea of sport？ Certainly not! Do the Argentinians really believe that because eleven of their men proved the most skillful at football , their nation is better in every thing else than all other nations？ Not really？ But it's nice to know that you won ,and that in one way at least your country it best.

26. What is the author's main purpose in the passage？ ___________.

A. To prove that football is better than all others.

B. To show that Argentina is better than all others.

C. To compare Scotland with Argentina.

D. To explain the role of sport.

27. In the second paragraph, the world's summit means ___________.

A. highest point

B. mountain top

C. award

D. summary

28. According to the passage, Argentina is world-famous because of its ___________.

A.large number of sports fans and supporters