Gas prices are(high)______here than in other parts of the country.
Gas prices are(high)______here than in other parts of the country.
Gas prices are(high)______here than in other parts of the country.
【C1】
A.this
B.which
C.that
D.what
Policymakers and industry have four options: reduce vehicle use, increase the efficiency and reduce the emissions of conventional gasoline-powered vehicles, switch to less harmful fuels, or find less polluting driving systems. The last of these -- in particular the introduction of vehicles powered by electricity -- is ultimately the only sustainable option. The other alternatives are attractive in theory but in practice are either impractical or offer only marginal improvements. For example, reduced vehicle use could solve traffic problems and a host of social and environmental problems, but evidence from around the world suggests that it is very difficult to make people give up their cars to any significant extent. In the US, mass transit ridership and carpooling have declined since World War Ⅱ. Even in western Europe, with fuel prices averaging more than $1 a liter (about $ 4 a gallon) and with easily accessible mass transit and dense populations, cars still account for 80 percent of all passenger travel.
Improved energy efficiency is also appealing, but automotive fuel economy has barely made any progress in 10 years. Alternative fuels such as natural gas, burned in internal-combustion engines, could be introduced at relatively low cost, but they would lead to only marginal reductions in pollution and greenhouse emissions (especially because oil companies are already spending billions of dollars every year to develop less polluting types of gasoline).
From the passage we know that the increased use of cars will ______.
A.consume half of the oil produced in the world
B.have serious consequences for the well-being of all nations
C.widen the gap between the developed and developing countries
D.impose an intolerable economic burden on residents of large cities
But the Americans are in a mess. The problem is the way in which health care is organized and financed. Contrary to public belief, it is not just a free competition system. To the private system has been joined a large public system, because private care was simply not looking after the less fortunate and the elderly.
But even with this huge public part of the system, which this year will eat up 84.5 billion dollars—more than 10 percent of the U.S. budget—large numbers of Americans are left out. These include about half the 11 million unemployed and those who fail to meet the strict limits on income fixed by a government trying to make savings where it can.
The basic problem, however, is that there is no central control over the health system. There is no limit to what doctors and hospitals charge for their services, other than what the public is able to pay. The number of doctors has shot up and prices have climbed. When faced with toothache, a sick child, or a heart attack, all the unfortunate person concerned can do is pay up.
Two-thirds of the population are covered by medical insurance. Doctors charge as much as they want knowing that the insurance company will pay the bill.
The medical profession has as a result become America's new big businessmen. The average income of doctors has now reached $100,000 a year. With such vast incomes the talk in the doctor's surgery is as likely to be about the doctor's latest financial deal, as about whether the minor operation he is recommending at several thousand dollars is entirely necessary.
The rising cost of medicine in the U.S.A. is among the most worrying problem facing the country. In 1981 the country's health cost climbed 15.9 percent—about twice as fast as prices in general.
In the U.S. patients can expect, in medical treatment, ______.
A.occasional mistakes by careless doctors
B.a great deal of personal attention
C.low charge by doctors and hospitals
D.stacking nurses and bad services
There are two ideas—one, living within your means, and the idea that living on debt is a great equalizer(平衡装置). They both have validity because it is important that someone live within their means over their lifetime. When people are young and they are earning money, but they have very little savings, they almost have to borrow in order to own a house or own a car. But as they grow older, they should develop the habit of saving, so that by the time they reach the end of their earning life, they have savings to live on in retirement, and live within their means.
"Buy now, pay later" worked very well for us in the 1990s, but one suspects it won't work forever. The only thing that concerns me is that Americans are so contented, so optimistic, so unconcerned about any bumps in the road that many American households, not all of them, but many American households are very heavily extended in personal credit, a lot of credit card debt. People are paying very high prices for houses and borrowing heavily against those prices; and if we do run into a bump in the road, a recession, there are going to be a lot of households, not all of them, but many households that Ml be severely squeezed. That means we're more vulnerable to serious financial distress than Japan is. Japan has been in financial distress for ten years, but one reason it's been able to weather that is that the households had been very conservative, had a lot of savings, were very liquid, and were able to weather difficult times. And many American households would now be less able to do that because they are so heavily in debt.
We know from the passage that credit cards
A.make Americans get deeper and deeper in debt
B.are likely to be abandoned by more Americans
C.will soon become a symbol of American life
D.will help solve potential financial problems
A、Scooter, Gas Scooter, Gas Scooter Accessory
B、Gas Scooter, Gasoline Scooter, G-Scooter, G Scooter, Scooter, 50cc Scooter, EEC Approved Scooter
A.sigh
B.breath
C.air
D.gas
A.Petroleum.
B.Coal.
C.Natural gas
D.Water.
A.down
B.back
C.by
D.down with
When you have a full tank of gas, park the car downhill. This will prevent any gas from coming out of the tank. Parking in areas of less or no sunlight helps prevent the gas from steaming that would occur if you parked in the hot sun. Your car will stay cooler, too, and that means less gas consuming work for the air conditioner once the engine is started.
Stay away from wide-track tyres if you want top mileage (汽车耗费1加仑油所行驶的路程) . Narrow-track tyres produce less friction and thus less rolling resistance. The same effect is achieved by adding three to five pounds above recommended pressure to each tyre: while this won't noticeably affect you car's sliding quality, it will increase tyre life and gas mileage.
Check tyre pressure often, especially when the weather turns cold. The difference between winter and summer tyre pressure can be as much as eight pounds. This could cost you two miles per gallon.
The main purpose of the passage is to tell us______.
A.how to drive faster
B.how to drive a car properly
C.how to make a car run smoothly
D.how to make your car consume less gas