Question

【题目】 Now satellites(卫星)are helping to forecast(预报)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(形成)。They send these pictures to the weather station. So meteorologists(气象专家)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 meteor- ologists compare(比较)them with earlier ones. Perhaps they may find that the clouds have changed during the last few hours .This may mean 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 3 or 5 days. Soon,perhaps , they may be ablet to forecast the weather for a week or more ahead(提前)

【1】Satellites travel__________.

A.in spaceB.in the atmosphere

C.above the groundD.above space

【2】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

【3】Meteorologists forecast the weather________.

A.when they have received satellite pictures

B.after they have compared new satellite pictures with earlier ones

C.before they receive satellite pictures

D.while they study satellite pictures

【4】Maybe we’ll soon be able to forecast the weather for _______.

A.one dayB.two daysC.five daysD.seven days or even longer

【5】The main idea of this passage is that satellite are 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

Answer 1

【答案】

【1】A

【2】C

【3】B

【4】D

【5】D

【解析】

本文主要讲述了现在利用气象卫星进行天气预报的方法，以及利用气象卫星进行天气预报的意义及应用前景。

【1】细节理解题。根据第一段第二句“They are in space”可知卫星是在太空中的，故答案为A 。

【2】细节理解题。通过文章第三句“The satellites take pictures of the atmosphere（大气）, because this is where the weather forms” 卫星拍摄大气层的照片，因为这是天气形成的地方。可知天气形成于大气层，故答案为C 。

【3】细节理解题。通过文章第二段第二句“When they receive new pictures, the meteorologists compare them with earlier ones.” 当他们收到新的图片时，气象学家把它们与以前的图片进行比较。可知，气象学家在比较之后才报天气。故答案为B 。

【4】细节题理解题。根据短文最后一段Soon, perhaps, they may be able to forecast the weather for a week or more ahead（提前）. 很快，也许他们就能预测未来一周或更长时间的天气。 描述，可知，很快我们就能提前预报七天甚至更长时间的天气了。故答案为D。

【5】主旨大意题。通过阅读可知本文主要讲了卫星通过拍照来预测天气预报，以及利用气象卫星进行天气预报的意义及应用前景。故答案为D 。