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The steam machine________ industry _____ dependence on running water for the only way to transport big amount of goods.
A. free; by
B. helped; with
C. departed; to
D. liberated; from
B. helped; with
C. departed; to
D. liberated; from
参考答案
参考解析
解析：考查词组辨析。句意：蒸汽机使得工业摆脱了只能依靠水路运输大宗货物的束缚。free 作动词，有“使自由，解放”的含义，但是此时后面常用介词from；help 常用于help sb. with sth.的结构中，表示帮助某人做某事；depart 离开，出发，depart to 表示“动身去……”；liberate 解放，释放，常用结构liberate... from...使解脱，符合句意。
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Transport and Trade1.Transport is one of the aids to trade.By moving goods from places where they are plentiful to places where they are scarce,transport adds to their value.The more easily goods can be brought over the distance that separates producer and consumer,the better for trade.When there were no railways,no good roads,no canals,and only small sailing ships,trade was on a small scale.2.The great advances made in transport during the last two hundred years were accompanied by a big increase in trade.Bigger and faster ships enabled a trade in meat to develop between Britain and New Zealand, for instance.Quicker transport makes possible mass-production and big business, drawing supplies from,and selling goods to,all parts of the globe.Big factories could not exist without transport to carry the large number of workers they need to and from their homes.Big city stores could not have developed unless customers could travel easily from the suburbs and goods delivered to their homes.Big cities could not survive unless food could be brought from a distance.3.Transport also prevents waste.Much of the fish landed at the ports would be wasted if it could not be taken quickly to inland towns.Transport has given us a much greater variety of foods and goods since we no longer have to live on what is produced locally. Foods which at one time could be obtained only during a part of the year can now be obtained all through the year. Transport has raised the standard of living.4.By moving fuel,raw materials and even power,for example,electric cables,transport has led to the establishment of industries and trade in areas where they would have been impossible before.Districts and countries can concentrate on making things which they can do better and more cheaply than others and can then exchange them with one another. The cheaper and quicker transport becomes,the longer the distance over which goods can profitably be carried. Countries with poor transport have a lower standard of living.5.Commerce requires not only the moving of goods and people but also the carrying of messages and information.Means of communication,like telephones,cables and radio,send information about prices,supplies and changing conditions in different parts of the world.In this way,advanced communication systems also help to develop trade.Paragraph 3______A:Higher living standard.B:Importance of transport in trade.C:Various means of transport.D:Birth of transport-related industries and trade.E:Role of information in trade. F: Public transportation.
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共用题干
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Geothermal(地热)Energy
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文章(23~30)
Paragraph1_____A.Dry steam plants
B.Binary plants
C.Origin of geothermal energy
D.Generation of electricity
E.Flash steam plants
F.Recyclable water and steam
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共用题干
Transport and Trade1.Transport is one of the aids to trade.By moving goods from places where they are plentiful to places where they are scarce,transport adds to their value.The more easily goods can be brought over the distance that separates producer and consumer,the better for trade.When there were no railways,no good roads,no canals,and only small sailing ships,trade was on a small scale.2.The great advances made in transport during the last two hundred years were accompanied by a big increase in trade.Bigger and faster ships enabled a trade in meat to develop between Britain and New Zealand, for instance.Quicker transport makes possible mass-production and big business, drawing supplies from,and selling goods to,all parts of the globe.Big factories could not exist without transport to carry the large number of workers they need to and from their homes.Big city stores could not have developed unless customers could travel easily from the suburbs and goods delivered to their homes.Big cities could not survive unless food could be brought from a distance.3.Transport also prevents waste.Much of the fish landed at the ports would be wasted if it could not be taken quickly to inland towns.Transport has given us a much greater variety of foods and goods since we no longer have to live on what is produced locally. Foods which at one time could be obtained only during a part of the year can now be obtained all through the year. Transport has raised the standard of living.4.By moving fuel,raw materials and even power,for example,electric cables,transport has led to the establishment of industries and trade in areas where they would have been impossible before.Districts and countries can concentrate on making things which they can do better and more cheaply than others and can then exchange them with one another. The cheaper and quicker transport becomes,the longer the distance over which goods can profitably be carried. Countries with poor transport have a lower standard of living.5.Commerce requires not only the moving of goods and people but also the carrying of messages and information.Means of communication,like telephones,cables and radio,send information about prices,supplies and changing conditions in different parts of the world.In this way,advanced communication systems also help to develop trade.In the trade of modem society the transmission of information plays as important a role as______.A:to send goods to various parts of the worldB:at any time during the yearC:has greatly promoted tradeD:is it possible to produce on a large scaleE:the transport of goodsF: transport also prevents waste
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共用题干
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考题
共用题干
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单选题What does the bottled water industry use in its own defense?A
Bottled water is much cleaner than tap water.B
Students should have freedom of choice.C
The bottles are made in a more environment-friendly way.D
Water is healthier than some sodas and juices.
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单选题When the fuel oil is burning in the combustion chamber, it （）.A
gives up large amount of heatB
gives off large amount of heatC
gives up large amount of steamD
gives off large amount of steam
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单选题The steam boiler is part of a closed loop steam, whereby, after the energy of the steam is used up and it becomes water again, （） is collected and returned back to the boiler for heating up again to steam.A
the formerB
the firstC
the latterD
the last
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单选题To develop light industry in a big way _____ to improving the people’s livelihood.A
owesB
attributesC
distributesD
contributes
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单选题Large pipes or （） are fitted between the steam and water drums to ensure good natural circulation of water.A
fire-tubesB
furnacesC
down-comersD
soot-blowers
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单选题The amount of heat released by steam when it changes to water at the same temperature is called（）.A
latent heat of condensationB
latent heat of vaporizationC
latent heat of saturationD
sensible heat of condensation
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单选题The boiler feed pump discharge pressure is higher than the steam drum pressure to （）.A
ensure feed water flow into the boilerB
keep the steam drum pressure highC
prevent water hammer in the feed lineD
help the feed water flash to steam
考题
单选题The water level in a steaming auxiliary boiler will always （）A
rise when the steam pressure is increasedB
remain constant as long as the feed pump operatesC
fall when the steam pressure is decreasedD
vary as the steam demand changes
考题
单选题The water level showing in a boiler water gauge glass is usually （） during working.A
higher than the actual drum water levelB
equal to the actual drum water levelC
increasing due to steam condensation in the glassD
lower than actual drum water level
考题
单选题In motorships，there are two main circuits, （）.A
one salt water, one fresh waterB
one salt water, one fuelC
one fresh water, one fuelD
one steam, one fuel
考题
单选题Which of the listed types steam traps operates on the principle that hot water flashes to steam when its vapor pressure is rapidly reduced?（）A
Ball floatB
ThermostaticC
BimetallicD
Impulse
考题
单选题When running a large, low-speed, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching back over to diesel oil?（）A
The diesel oil must never be allowed to mix with the heavy fuelB
The temperature of the fuel from the pre–heater should be gradually reduced after switching over the three–way valveC
The heating steam to the pre-heater should be secured as soon as the diesel fuel passes through the three-way valveD
The heating steam must be secured before the diesel oil passes through the three-way valve
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