Read and Choose. (5 min)<p> In the center of the United States, there is an area called Tornado Alley It stretches from Texas into South Dakota. It is called Tornado Alley because so many tornadoes sweep through the area every year. There are many people who live in Tornado Alley. Scientists are working on better ways to warn people.</p><p> A tornado is a spinning cone of air that can destroy anything in its path. The best way to keep people safe from tornadoes is to warn them that one is coming. That way, people can find shelter or leave the area. However, it is very hard to know when and where tornadoes will form. To learn more about tornadoes, scientists have to find them first. That is where storm chasers can help.</p><p> Storm chasers are people who try to find tornadoes. They drive in trucks or vans that carry tools used to measure tornadoes. The storm chasers can get much better information from up close than machines can from far away. Storm chasers need the help of people called spotters, who watch the skies. When spotters see weather that looks like it might make tornadoes, they call the storm chasers. Storm chasing can be very dangerous, but it may be worth the danger. Chasers try to get as close as they can to tornadoes in order to gather information. The information they get can be used to help keep people safe.</p><p><br></p><p>What are the scientists trying to learn to solve the problem of tornadoes?</p>
A、
They want to learn what tornadoes are.
B、
They want to learn how tornadoes form.
C、
They want to learn where tornadoes happen.
发布时间:2025-05-21 12:43:46