The weather today has______quite warm. Don’t you think so?
A.come
B.gone
C.fallen
D.turned
A.come
B.gone
C.fallen
D.turned
A.The temperature may be higher.
B.How is the weather today?
C.What's the temperature today?
D.What does the weather forecast say?
A.With regard to
B.In spite of
C.According to
D.In sight of
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
ort, and convenience. These cars will float along never touching the ground, and therefore will have no need for wheels. Annoying highway vibrations, caused by the rotations of the disc-and-tire wheels, will be things of the past. The coming highway passenger cars will literally fly above the road, supported on columns of air compressed by
turbine-driven fans.
The car without wheels has been called a “flying car” , and, in a sense, that’ s just what it is; however, it will not back out of the family garage, start down the street, and then suddenly go quickly upward heading for some distant point. On the contrary, to avoid problems in aerial navigation, the wheel-less vehicle probably will travel no more than three inches above road surface. It will travel over fairly rough road and even over smooth water.
The inevitable problems of maritime regulations, severe weather conditions, and running out of fuel in remote areas all will require new concepts of operation, servicing, and vehicle regulation.
1.The author believes that cars of the future _______ .
A、will be replaced by airplanes
B、will have wheels unlike those of today
C、will u s e columns of air instead of wheels
D、will u s e wheels without tires
2.Cars of the future will run _______ .
A、without annoying noise
B、without fuel
C、much more smoothly
D、on a number of fans
3.The car without wheels has been called a “flying car” because _______ .
A、it travels a few inches above the ground
B、it can fly as a plane does
C、it moves at a very high speed
D、it can travel over smooth water
4.Where is a wheel-less car least fit to travel_____ .
A、Over soft land
B、Over rough country roads
C、Over highways
D、Over waterfalls
5.Wheel-less cars will _______ .
A、eliminate all traffic problems
B、create new traffic problems
C、eliminate parking problems
D、both A and C
A.It will be rainy
B.It will be cloudy
C.It will be sunny
A. the north
B. that in the north
C. in the north
D. it in the north
A.really
B.so
C.such
D.very
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B.pH-pKA=log[A-]/[HA]
C.pKA-pH=log[A-][HA]/[HA]
D.pH-pK=log[A-]/[HA]
E.pKA-pH=log[HA]/[A-][HA]