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( )in the earth’s crust，the rock may be subjected to temperatures high enough to melt it.
A.Deep
B.Deeper
C.Deepest
D.Deeply
B.Deeper
C.Deepest
D.Deeply
参考答案
参考解析
解析：考查副词辨析。地壳深处的温度足以熔化岩石。
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文章(23~30)
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F.Recyclable water and steam
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共用题干
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共用题干
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判断题Migratory birds may rely on the earth’s magnetic field for guidance while traveling during cloudy days.A
对B
错
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问答题Practice 1 How does an earthquake start? What makes an earthquake happen? The rock of the earth’s crust (地壳) may have a “fault”, a kind of break in the surface. The blocks which make up the earth move, and sometimes this may cause the sides of the fault to move up and down or lengthways (纵向地) against each other. When one piece of rock starts to rub on another with great force, a lot of energy is used. This energy is changed into vibrations (振动) and it is these vibrations that we feel as an earthquake. The vibrations can travel thousands of kilometers and so an earthquake in Turkey may be felt in Greece. What to do during an earthquake? At school As soon as the earthquake starts, students should get under the desks immediately and wait until the teacher tells them it is safe to come out. The teacher should, at the same time, go immediately to the teacher’s desk, get underneath (在……下面) it and stay there till the danger is over. Students must not argue with the teacher or question instructions. As soon as the tremors (震动) stop, all students should walk towards the exit and go straight to the school playground or any open space such as a square or a park. They must wait there until the teacher tells them it is sale to go. At home If you are at home when the earthquake occurs, get immediately under the table in the living room or kitchen. Choose the biggest and strongest table you can find. You must not go anywhere near the window and don’t go out onto the balcony (阳台). Once the tremors have stopped, you can come out from under the table, but you must leave the building straight away. You should walk down the stairs and should not use the lift—there may be a power cut as a result of the earthquake and you could find yourself trapped inside the lift for hours. In the street If you are in the street when the earthquake takes place, do not stand near buildings, fences or walls—move away as quickly as possible and try to find a large open space to wait in. Standing under trees could also be dangerous.
考题
单选题When an earthquake occurs, _____.A
people are killed and injuredB
rocks are breaking and shiftingC
destructive waves flood the coasts for milesD
large sections of the earth's rock)r outer shell suddenly break and shift
考题
单选题In this passage the author argues that______.A
more and more evidence shows college education may not be the best thing for high school graduatesB
college education is not enough if one wants to be successfulC
college education benefits only the intelligent, ambitious, and quick-learning peopleD
intelligent people may learn quicker if they don’ t go to college
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单选题The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatures will be characterized by a （）.A
low viscosity indexB
high viscosity indexC
high neutralization numberD
low demulsibility quality
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单选题A diesel engine exposed to widely varying ambient temperatures should use to a lubricating oil with （）A
a high viscosity indexB
a low viscosity indexC
neutralize acidsD
resist oxidation at high temperatures
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单选题The direction of the surface wind is（）.A
directly from high pressure toward low pressureB
directly from low pressure toward high pressureC
from high pressure toward low pressure deflected by the earth's rotationD
from low pressure toward high pressure deflected by the earth's rotation
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单选题On the pole side of the high pressure belt in each hemisphere，the pressure diminishes. The winds along these gradients are diverted by the Earth’s rotation toward the east and are known as the（）.A
geostrophic windsB
doldrumsC
horse latitudesD
prevailing westerlies
考题
单选题If the firing pressures in a diesel engine are high, although the exhaust temperatures are normal, the cause may be（）A
early injection timingB
worn orifices in the injection nozzlesC
worn or scored cylinder linersD
using a fuel with too low of a cetane number
考题
单选题High diesel engine cooling water temperatures can be caused by （）.A
a worn water pumpB
not enough coolantC
air in the cooling systemD
all of the above
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