题目列表(包括答案和解析)
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 forms. 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 or 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(提前).
1.Satellites travel ___________.
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A.in space |
B.in the atmosphere |
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C.above the ground |
D.above space |
2. Why do we use the weather satellites to take pictures of the atmosphere?
Because ________.
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A.the weather satellites can do it easily |
B.clouds form there |
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C.the weather forms there |
D.the pictures can forecast the weather |
3.Meteorologists forecast the weather ________.
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A.when they have received satellite pictures |
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B.after they have compared new satellite pictures with earlier ones |
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C.before they received satellite pictures |
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D.during they study satellite pictures |
4.Maybe we’ll soon be able to forecast the weather for ________.
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A.one day |
B.two days |
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C.five days |
D.seven days or even longer |
5.The main idea of this passage is that satellites are now used in ______.
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A.taking pictures of the atmosphere |
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B.receiving pictures of the atmosphere |
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C.doing other work in many ways |
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D.weather forecasting |
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Americans with small families own a small car or a large one. If both parents are working, they usually have two cars. When the family is large, one of the cars is sold and they will buy a van(住房汽车)
A small car can hold(容纳)four persons and a large car can hold six persons but it is very crowded(拥挤). A van hold seven persons easily, so a family three children could ask their grandparents to go on a holiday travel They could all travel together.
Mr.Hagen and his wife had a third child last year. This made them sell a second car and bus a van. Their children sixth and seventh seat are used to put other things, for a family of five must carry many suitcases(衣箱)when they travel. When they arrive at their grandparents’home , the suitcases are brought into the two seats can then carry the grandparents.
Americans call vans motor homes. A motor home is always used for holidays. When a family are traveling to the mountains or to the seaside, they can live in their motor home for a few days or to the seaside, they can live in their motor home for a few days or weeks. All the members of a big family can enjoy a happier life when they are traveling together. That is why motor homes have become very popular. In America there are many parks for motor homes.
1.From the passage, a van is also called ____________.
A.a motor car B.a motor home
C.a motorbike D.a big truck
2. Before Mr. Hagen and his wife bought a van, they__________.
A.sold their old house
B.moved to their grandparents’house
C.built a new place for a van
D.sold their second car
3. A motor home is usually owned by a family with__________.
A.a baby B.much money
C.more than two children D.interest in vans
4. Americans usually use motor homer____________.
A.to travel with all the family members of holiday
B.to do some shopping with all the family members
C.to visit their grandparents at weekends
D.to drive their children to school every day
5. Motor homes have become popular because___________.
A.they can take people to another city when people are free
B.they can let families have a happier life when they go out for their holidays
C.some people think motor homes are cheap
D.big families can put more things in motor homes
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