We can know about the weather from many ways:watching TV, listening to the radio,reading the newspapers.…Now,many people find computers and cell phones can also tell them the weather information(信 息) .It's easy and quick.People can use computers and cell phones to know the weather of tomorrow and even 15 days later.The weather information is useful and important for many people.
Why do people want to know about the weather?They want to make plans(计划). Some people want to have a good time with friends on a nice day.Other people want to stay safe(安全的) when they are doing their jobs,like making houses.
Airport(机场) workers need to know about the weather.In bad weather,their planes cannot fly.Farmers(农民)need to know about the weather to plan their farm work because they cannot work on the farm in bad weather.Fishermen need to know about the weather,too.In bad
weather,they cannot go out to fish.
computers and cell phones?
to the passage.
①how to know about the weather
②who wants to know about the weather
③when to know about the weather
④why people want to know about the weather.