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    Car are necessary in our daily life. In modern society we even can’t go without cars. Therefore,car servicing becomes something that every car owner has to experience at least some have the servicing done methtxJically(有条理地）according to your car maker. Consider this: Your car is uo and running smoothly but the mileage(里程）figures indicate that you need to have it serviced. Certainly, this is the right thing to do, but have you wondered what actually goes in to make you pay that servicing bill every 6 months?
 Servicing your car is a simple DIT( Do It Yourself) job that you can learn quickly and easily save some good money.
 If you have never serviced your car before personally, here're the servicing basics：
 Car servicing essentially means inspecting the car thoroughly for any damaged components, and replacing some parts regularly that wear out over time. If you review carefully it is certainly possible to do all this by yourself, as below:
You will need a complete set of tools as provided by your car maker when you purchased the vehicle. This will usually consist of all the spanners(扳手) that you might need.
Completely servicing your car will need a few hours but you will end up saving a lot of money. Besides, it’s fun too and a lot of learning.
29. What is the best way to service your car?
A .To service your car by yourself.
B. To turn to other car owners for help.
C. To send your car back to the car maker.
D. To have your car serviced at service station.
30. why does the author suggest servicing your car by yourself?
A. It is money-saving and easy to learn.
B. It is a simple way to save energy.
C It is convenient and challenging.
D. It is done more efficiently.
31. What is included in the set of tools provided by the A- Spare part?
A Spare parts            B Cleaning brushes  
C Measuring meters       D All kinds of spanners.
D
The work of railroad pioneers in America became the basis for a great surge of railroad building halfway though the nineteenth century that linked the nation together as never before. Railroads eventually became the nation’s number one transportation system, and remained so until the construction of the interstate highway system halfway through the twentieth century. They were of great importance stimulating economic expansion,but their influence reached beyond the economy and was strong in American society at large.
By 1804, English as American inventors had experimented with steam engines for moving land vehicles. In 1820,John Stevens ran a locomotive（火车头） and cars around in a circular track on his New Jersey estate,which the public saw as amusing toy. And in 1825, after opening a short length of track, the Stockton to Darlington Railroad in England became the first line to carry general traffic. American businesspeople, especially those in the Atlanic coastal region who looked for better communication with the West, quickly became interested in the English experiment. The first company in America to begin actual operations was the Baltimore and Ohio,witch opened a thirteen-mile length of track in 1830. It used a team of horses to pull a train of passenger carriages and freight wagons along the track. Steam locomotive power didn’t come into regular service until two years later. 
However, for the first decade or more, there was not yet a true railroad system. Even the longest of the lines was relatively short in the 1830’s, and most of them served simply to connect water routes to each other, not to link one railroad to another. Even when two lines did connect, the tracks often differed in width, so cars from one line couldn’t fit onto tracks of the next line. Schedules were unreliable and wrecks were frequent. Significantly, however, some important developments during the 1830’s and 1840’s included the introduction of heavier iron rails, more flexible and powerful locomotives, and passenger cars were redesigned to become more stable, comfortable, and larger. By the end of 1830 only 23 miles of track had been laid in the country. But by 1936, more than 1,000 miles of track had been laid in eleven States, and within the decade, almost 3,000 miles had been constructed. By that early age, the United States had already surpassed Great Britain in railroad construction, and particularly from the mid-1860’s, the late nineteenth century belonged to the railroads. 
32．The word "stimulating" in line 5 is closest in meaning to 
A.helping      B.changing     C.promoting    D.influencing  
33．Which of the following can be inferred from the passage? 
A.The United States regarded Great Britain as a competitor in developing the most efficient railroad system 
B.Steam locomotive power was first used in 1832 
C.American businessmen saw railroads as a threat to established businesses
D.Steam locomotives replaced horses because of the distances across the country
34． The author concludes that for the first decade or more, there was not yet a true railroad system because 
A.passenger cars were not stable, comfortable or large 
B.locomotives were not powerful enough 
C.schedules were unreliable and wrecks were frequent 
D.lines were relatively short and not usually linked
35．Which of the following is NOT true about the 1830's and 1840's (line 24) 
A.passenger cars became larger         B.schedules were reliable 
C.locomotives became more powerful    D.tracks were heavier
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