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When the engine finally started she gave a(n) ______ sigh of relief.
A．adaptable
B．sensible
C．audible
D．applicable
答案
更多“When the engine finally started she gave a（n) ______ sigh of relief.A．adaptableB．sensibleC”相关的问题
第1题
A.inspect
B.inspected
C.inspects
D.inspecting
第2题
A.A permanent magnet alternator when N2＞ 15%
B.A permanent magnet alternator when N2＞12%
C.A permanent magnet alternator when N1＞ 15% C
D. The emergency lighting system can be tested from
第3题
M: No problem, Mrs. White. Everything will be ok when you come to pick it up this afternoon.
Q: Where does this conversation most likely take place？
(14)
A．At the woman's home.
B．At a gas station.
C．At a bus station.
D．At a garage.
第4题
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
第5题
Hybrid Cars
Have you pulled your car up to the gas pump lately and been shocked by the high price of gasoline？ As the pump clicked past $20 or $30, maybe you thought about trading in your car for something that gets better mileage. Or maybe you're worried that your car is contributing to the greenhouse effect.
The auto industry has the technology to address these concerns. It's the hybrid car. You're probably aware of hybrid cars because they've been in the news a lot. Most automobile manufacturers have announced plans to manufacture their own versions. What makes it a "Hybrid"？
Any vehicle is a hybrid when it combines two or more sources of power. In fact, many people have probably owned a hybrid vehicle at some point. For example, a moped (a motorized pedal bike) is a type of hybrid because it combines the power of a gasoline engine with the pedal power of its rider.
Hybrid vehicles are all around us. Most of the locomotives we see pulling trains are diesel-electric hybrids. Cities like Seattle have diesel-electric(以柴油发动机发电的) buses—these can draw electric power from overhead wires or run on diesel when they are away from the wires. Giant mining trucks are often diesel-electric hybrids. Submarines are also hybrid vehicles — some are nuclear-electric and some are diesel-electric. The gasoline-electric hybrid car is a cross between a gasoline-powered car and an electric car.
Hybrid Structure
You can combine the two power sources found in a hybrid car in different ways. One way, known as a parallel hybrid, has a fuel tank, which supplies gasoline to the engine. But it also has a set of batteries that supplies power to an electric motor. Both the engine and the electric motor can turn the transmission at the same time, and the transmission then turns the wheels.
By contrast, in a series hybrid the gasoline engine turns a generator, and the generator can either charge the batteries or power an electric motor that drives the transmission. Thus, the gasoline engine never directly powers the vehicle.
Why Build Such a Complex Car？
You might wonder why anyone would build such a complicated machine when most people are perfectly happy with their gasoline-powered cars. The reason is twofold: to reduce tailpipe emissions and to improve mileage. These goals are actually tightly interwoven.
Evolution of the Hybrid
The hybrid is a compromise. It attempts to significantly increase the mileage and reduce the emissions of a gas-powered car while overcoming the shortcomings of an electric car.
The Problem with Gas-powered Cars
To be useful to you or me, a car must meet certain minimum requirements. The car should be able to:
-Drive at least 300 miles (482 km) between re-fueling
-Be refueled quickly and easily
-Keep up with the other traffic on the road
A gasoline car meets these requirements but produces a relatively large amount of pollution and generally gets poor gas mileage. An electric car, on the other hand, produces almost no pollution, but it can only go 50 to 100 miles (80 to 161 km) between charges. And the problem has been that it is very slow and inconvenient to recharge.
A driver's desire for quick acceleration causes our cars to be much less efficient than they could be. You may have noticed that a car with a less powerful engine gets better gas mileage than an identical car with a more powerful engine. Just look at the window stickers(有图形或文字的粘贴标鉴) on new cars at a dealership for a city and highway mph comparison.
The amazing thing is that most of what we require a car to do uses only a small percentage of its horsepower! When you are driving along the freeway at 60 mph (96.6 kph), your car engine has to provide the power to do three things:
&
A．Y
B．N
C．NG
第6题
听力原文： When cars first started appearing on the streets of the world, few people took them seriously. They were toys--playthings for grown men who didn't have much to do. No one thought that the automobile would become the world's most popular means of transportation.
When Henry Ford started selling his Model T in 1908, he changed all that. Ford believed that a car should be low-cost transportation that everyone could afford. So he decided to make such a car. First, he wanted a dependable automobile that wouldn't break down easily. Then he wanted a simple engine that almost anyone could fix.
Ford wanted to sell the car at a low price, so he had to make it at a low cost. Thus he made only one model and designed one color--black.
In 1932, the Duesenberg brothers produced a car that many people think it was the most luxurious automobile ever made--the Duesenberg SJ. Every Duesenberg car was custom-made, so each one was different. But it usually weighed about 7,000 pounds and had a very wide wheelbase--150 inches. It also had a 400 horsepower engine that could drive the huge car from zero to 100 miles per hour in 17 seconds.
The inside was very luxurious, too. It had the best silk, leather, silver and wood. A Dusenberg car was definitely expensive but rich people often felt that they had to own one. Unfortunately, the car cost so much to produce that the company lost money. In 1937, after making only 500 of them, the Duesenbergs stopped producing this kind of cars forever.
(33)
A．The two models of cars.
B．The history of car industry.
C．The development of cars in America.
D．The structure of Duesenberg cars.
第7题
A．He's busy with reading.
B．He's behind his schedule.
C．He is writing a book.
D．He is financed by his parents.
第8题
A．They can not be admitted into some organizations.
B．They must re-establish their financial record in the bank.
C．Their identity will not be accepted by the government.
D．They can not get their belongings back.
第9题
Most of the cases were decided in state courts, when the railroads had the climate of the times on their sides. Government supported the railroad industry; the progress railroads represented was not to be slowed down by requiring them often to pay damages to those unlucky enough to be hurt working for them.
Court decisions always went against railroad workers. A Mr. Farwell, an engineer, lost his right hand when a switchman's negligence ran his engine off the track. The court reasoned that since Farwell had taken the job of an engineer voluntarily at good pay, he had accepted the risk. Therefore the accident, though avoidable had the switchman acted carefully, was a "pure accident". In effect a railroad could never be held responsible for injury to one employee caused by the mistake of another.
In one case where a Pennsylvania Railroad worker had started a fire at a warehouse and the fire had spread several blocks, causing widespread damage, a jury found the company responsible for all the damage. But the court overturned the jury's decision because it argued that the railroad's negligence was the immediate cause of damage only to the nearest buildings. Beyond them the connection was too remote to consider.
As the century wore on, public sentiment began to turn against the railroads— against their economic and political power and high fares as well as against their callousness toward individuals.
Which of the following is NOT true in Farwell's case？
A．Farwell was injured because he negligently ran his engine off the track.
B．Farwell would not have been injured if the switchman had been more careful.
C．The court argued that the victim had accepted the risk since he had willingly taken his job.
D．The court decided that the railroad should not be held responsible.
第10题
听力原文： The great advance in rocket theory 40 years ago showed that liquid-fuel rackets were far superior in every respect to the skyrocket with its weak solid fuel, the only kind of rocket then known. However, during the last decade, large, solid-fuel rockets with solid fuels a bout as powerful as powerful fuels have made their appearance, and it is a favorite layman's question to inquire which one is "better". The question is meaningless; one might as well as ask whether a gasoline or a diesel engine is "better", it all depends on the purpose. A liquid-fuel rocket is complicated, but has the advantage that it can be controlled beautifully. The bunting of the rocket engine can be stopped completely; it can be reignited when desired. A solid-fuel rocket, tin the other hand, is rather simple in construction, though hard to build when a really large size is desired. But once you have a solid-fuel rocket, it is ready for action at a very short notice. A liquid fuel rocket has to be fueled flint and Carl not be held in readiness in very long slier it has been fueled. However, once a solid-fuel rocket has been ignited, it will keep burning. It can't be stopped and reignited whenever desired. Because a solid fuel rocket can be kept ready for a long time, most missiles employ solid fuels, but manned space flight needs the line adjustments that can only be pro vided by liquid-fuel rocket. It may be added that a liquid-fuel rocket is an expensive device; a large solid-fund rocket is, by comparison cheap.
(33)
A．Neither of the two types of rockets is very economical.
B．The liquid-fuel rocket is best.
C．Each type of rocket has certain advantages.
D．The solid-fuel rocket is best.
