天气预报发展速度令人难以置信!
We know the weather on the radio and TV every day.
If we read correctly the signs around us, we can tell what the more important changes in the weather will be. This way of telling what the weather will be like in the following days is called weather forecasting(预报).
For many centuries, people have studied the weather and tried to make weather forecasting. Many people feel hurt in their bones with the coming of wet weather. Their joints ache. Some birds fly high if fine weather is coming, but they fly near the ground if rainy or stormy weather is on the way. If you see a rainbow during rainy weather, this is a sign that the weather will become clear and fine. If the stars twinkle clearly at night, then fine weather will continue. If a fog appears in the morning just above a river, then the day will be warm. If the sunset is mostly red in colour, then the following day will be fine.
Most of the above sayings have been made by people who have used their eyes and brains to make weather forecasting. Now, the idea of weather forecasting is developing incredibly(难以置信地) quickly.
1.What’s the Chinese meaning of the underlined word “joints”?
A 组织.
B 大脑.
C 五官.
D 关节.
解析：选D。D 词义猜测题。结合上下文可知joints ache对应上文的hurt in their bones，即joints应该与bones相近，D最符合，故选D。
2.Why do some birds fly near the ground?
A Because the sunset is on the way.
B Because fine weather is coming.
C Because there will be rains and storms.
D Because the weather is going to be wet.
解析：选C。C 细节理解题。根据第三段第三句Some birds fly high if fine weather is coming, but they fly near the ground if rainy or stormy weather is on the way.可知如果天气好，鸟会飞得很高，但如果雨或暴风雨天气即将来临，他们会飞到地面附近，故选C。
3.Which of the following can remind of of warms days?
A Birds.
B Rainbows.
C Stars.
D Fogs.
解析：选D。D 细节理解题。根据第三段第六句If a fog appears in the morning just above a river, then the day will be warm.可知如果早晨在河的上方出现雾，那么白天就会很暖和，故选D。
4.How were most of the sayings made?
A By people who can tell weather changes.
B By people who enjoy weather forecasting.
C By people who listen to radio every day.
D By people who observe life and think deeply.
解析：选D。D 推理判断题。根据最后一段首句可知，以上大多数说法都是由那些用眼睛和大脑来进行天气预报的人提出的，即那些人观察生活，深入思考，故选D。
5.What’s the passage mainly about?
A Weather changes.
B Fine weather.
C Old sayings.
D Weather forecasting.
解析：选D。D 主旨大意题。根据全文可知文章主要描述天气预报，故选D。