47 Tracking Weather

Tracking Weather by KATE MCINTYRE

凯特·麦金太尔的《跟踪天气》

Chapter 1 Tell the Weather People who tell the weather have an important job. They can tell us if it might rain tomorrow. They can tell us if it might be sunny. Weather people use many tools to forecast the weather. Forecast means "to tell what the weather will be." Some weather tools have been around for a long time. Barometers have been used for hundreds of years. Yet satellites are new.

预报天气的人有一项重要的工作。 他们能告诉我们明天是否会下雨。 他们能告诉我们天气是否晴朗。 天气预报人员使用许多工具来预报天气。 Forecast的意思是“预测天气”。 一些天气工具已经存在很长时间了。 气压计已经使用了数百年。 然而卫星是新事物。

Chapter 2 Thermometers and Wind Vanes Thermometers tell us how hot or cold it is outside. Thermometers are made of glass tubes. The tubes are filled with liquid. When it gets hot, the liquid goes higher. When it gets cold, the liquid goes lower. This shows the temperature! Wind vanes tell which way the wind is blowing. Wind vanes swing in the wind. They point to where the wind comes from. A north wind comes from the north. Where does a south wind come from?

第二章温度计和风向标温度计告诉我们外面有多热或多冷。 温度计是由玻璃管制成的。 管子里充满了液体。 当它变热时，液体会上升。 当它变冷时，液体会下降。 这显示了温度!风向标告诉我们风往哪个方向吹。 风向标在风中摇摆。 它们指向风的来源。 北风从北方吹来。 南风从哪里来?

Chapter 3 Rain Gauges and Barometers People who tell the weather also use a rain gauge. This tool tells how much rain fell. A barometer measures air pressure. If the air pressure is high, there will be cooler temperatures and clear skies. If the air pressure is low, warmer temperatures and storms are on the way.

第三章雨量计和气压计预报天气的人也使用雨量计。 这个工具能显示出降雨量。 气压计测量气压。 如果气压高，气温就会降低，天空就会晴朗。 如果气压低，气温升高和风暴即将来临。

Chapter 4 Radar Radar is a weather tool, too. It tells what the weather might be like. Radar sends signals into the air. The signals bounce off clouds and rain. The signals show where it is raining or snowing. Radar can save lives. It shows how fast storms are moving. Radar can tell us to get away from the storm area quickly.

雷达也是一种天气工具。 它能告诉你天气可能会怎样。 雷达向空中发送信号。 信号被云层和雨水反射。 信号显示下雨或下雪的地方。 雷达可以拯救生命。它显示了风暴移动的速度。 雷达能告诉我们迅速离开风暴地区。