Everyone tries to get to school on time. But when bad weather gives you trouble, can you still make it before the bell rings?

　　In northern China during spring, big sandstorms often make trouble for students and everyone else.

　　"When we had a sandstorm last week, I had to get up half an hour earlier so I wouldn't be late for school，" said Xing Wei, a Junior Ⅰ boy at Yaohua Middle School in Tianjin.Xing usually gets up at about seven and needs 20 minutes to get to school. But on sandstorm days, he needs 40 minutes. When the sky is dark with sand, buses and cars all move much more slowly. Sometimes, people can't even see for 200 meters.

　　 Sandstorms usually happen in spring. This year, sandstorms started in late March. They have happened in more than 10 provinces in northern China this year. More than 70 million people have had problems in those places because of the storms.

　　Sandstorms are bad for people's health. If people breathe too much sand, they could cough or have asthma.

　　Sandstorms also give farmers lots of problems. Sometimes their sheep get lost in the storms and never get back home. The winds also tear farmers' houses down.,

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