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说明文 龙卷风:应对与探索 ★★★ 8'
A tornado(龙卷风) is a kind of strong storm with air which moves quickly in a circle. It can move over 200 miles per hour and cause a lot of damage(损坏). As it moves across the land, it can easily pick up cars, trucks, and even houses, and then throw them very far. It is important to find a safe place if a tornado gets close.
A safe place could be a basement(地下室). If you are in a home without a basement, try to find a first-floor bathroom or a small room without windows in the middle of your house. You should curl up(蜷缩) into a ball and cover your head and neck with your hands.
But there are some people who actually want to get close to tornadoes. They are scientists who want to learn more about tornadoes. They use special tools to measure(测量) what is happening in and around a tornado. One special tool is called a tornado probe(探测仪). Inside the tornado probe, there are sensors(传感器) to measure wind speed, temperature, pressure, and directions. Some probes even have cameras, so the scientists can see and understand what it's like to be in a tornado. Then they take all of the measurements from the probe and use them to predict where future tornadoes may form and travel. And they can give people some warning to keep away from a dangerous tornado.
1. A tornado is a kind of which moves quickly in a circle.
2. If you are in a home without a basement, try to find a or a small room without windows.
3. Scientists use special tools to measure what is happening a tornado.
4. Some probes even have cameras, so they allow the scientists to what it's like to be in a tornado.
5. Scientists use these measurements to give people some warning to .

1. strong storm with air 2. first-floor bathroom 3. in and around
4. see and understand 5. keep away from a dangerous tornado