Every 30 seconds there is an earthquake. But don’t    （担忧） because most are so weak that they can’t be felt. But a few big ones hurt people.
Many earthquakes happened in    （中国），such as the big one in Sichuan in 2008.        （千）of people    （死）in it. So it’s important to know what to do when one hits. Here are some tips on how to stay    （安全）in an earthquake.
1. If you are indoors during an earthquake, hide under a desk. Stay away from windows and anything that could fall on you.
2. If you are outdoors, move to a clear place. Try to be away from trees, signs,     （建筑物）and streetlights. These could fall on you.
3. If you are in a shop and far from the door, don’t try to run outside and rush for exits. Everyone will be doing that and you’ll find it hard getting out. ______(不要) get into a lift during an earthquake. Just hide under some strong covers near you.
4. When an earthquake has finished，be careful because after-shocks may still    （发生）.These are just as dangerous as the earthquake itself. So stay under the desk until you make sure it’s safe to get up.
5. If you are at home and you smell gas, open the windows and get out of the building as   （快）as you can. A gas line in your house may be ______(破). This could be very dangerous.