题文

阅读理解。

Now satellites 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 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 (比较) 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. 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

2. 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 received satellite pictures D. during they study satellite pictures

3. Maybe we'll soon be able to forecast the weather for _______.

A. one day B. two days C. five days D. seven days or even longer

4. The main idea of this passage is that satellites 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

题型：阅读理解  难度：偏难

答案

1-4          CBDD

据专家权威分析，试题“阅读理解。 Now satellites are helping to forecast (预报) the..”主要考查你对  科教类阅读  等考点的理解。关于这些考点的“档案”如下：

科教类阅读

考点名称：科教类阅读

• 科普类的阅读：
  科普类的阅读理解包含介绍科学知识、社会知识的短文。阅读这类短文时，要以事实为中心进行思考，抓住事物的特征、用途、相互关系等。
  如果是介绍社会现象的文章，要掌握所谈现象的内涵。

• 答题技巧：
  1. 加强整体意识，把握文章的主要内容。在阅读的时候可给段落标上序号，并给重要的句子和
     关键词做上记号，尤其是各段中心句，为答题提供更快捷更多的信息源。
  2. 审清题干，发觉和把握试题中有效的提示性信息，确认命题的角度、阅读范围和答题方式。
  3. 定位阅读，强化对应意识。同时要注意原文利用和自我加工相结合。