on
around
in
with
第1题：
A、inventory
B、sacrifice
C、dripping
D、clear-cut
第2题：
Why do we use the weather satellites to take pictures of the atmosphere?Because______．
A．the weather satellites can do it easily
B．clouds form. there
C．the weather forms there
D．the pictures can forecast the weather
第3题：
Now satellites are 36 to forecast（预报）the weather. They are in space, and they can 37 any part of the world. The satellites take pictures of the atmosphere（大气），38 this is where the weather forms（形成）. They send these 39 to the weather stations. So meteorologists（气象学家）can see the weather of any part of the world. From the pictures, the scientists can often say 40 the weather will change.
Today, nearly five hundred weather stations in sixty countries receive satellite pictures. When they receive new pictures, the meteorologists compare them with earlier 41 . Perhaps they may find that the clouds have changed during the last few hours. This may mean that the 42 on the ground may soon change, too. In their next weather forecast, the meteorologists can say this.
So the weather satellites are a great 43 to the meteorologists. 44 __satellites were invented, the scientists could forecast the weather for about 24 or 48 hours. Now they can make good forecasts for three or five days. Soon, perhaps, they may 45 forecast the weather for a week or more ahead（提前）.
36.________________
A. help B. to help C. helped D. helping
第4题：
A decrease in barometric pressure is associated with all of the following except ______.
A.rising warm air
B.proximity to a low pressure area
C.inward spiraling circulation
D.clear dry weather
第5题：
Cold weather starting of a diesel engine is more difficult than warm weather starting due to
A.use of low viscosity oil in cold weather
B.increased moisture content of inlet air in cold weather
C.increased drag of pistons and bearings due to increased oil viscosity
D.higher compression pressures reached due to smaller clearances existing in the engine during cold weather
第6题：
根据下列材料请回答 31～35 题：
A
Now satellites are helping to forecast the weather．They are in space，and they can reach any part of the world．The satellites take pictures of the atmosphere(大气)，because this is where the weather form．They send these pictures to the weather stations．So meteorologists(气象学家)can see the weather of any part of the world．From the pictures，the scientists can often say how the weather will change．
Today，nearly five hundred weather stations in sixty countries receive satellite pictures．When they receive new pictures，the meteorologists compare them with earlier ones．Perhaps they may find that the clouds have changed during the last few hours．This may mean that the weather on the ground may soon change，too．In their next weather forecast，the meteorologists can say this．
So the weather satellites are a great help to the meteorologists．Before satellites were invented，the scientists could forecast the weather for about 24 0r 48 hours．Now they can make good forecasts for three or five days．Soon，perhaps，they may be able to forecast the weather for a week or more ahead．
第 31 题 Satellites travel______．
A．in space
B．in the atmosphere
C．above the ground
D．above space
第7题：
The main idea of this passage is that satellites aye now used in______．
A．taking pictures of the atmosphere
B．receiving pictures of the atmosphere
C．doing other work in many ways
D．weather forecasting
第8题：
_________
A. satellites B. pictures C. weather D. space
第9题：
Satellites were launched（）low orbit for weather and military applications.
A．on B．around C．in D．with
第10题：
Good weather is usually associated with a region of ______.
A.low barometric pressure
B.high barometric pressure
C.falling barometric pressure
D.pumping barometric pressure