We can’t stop an earthquake(地震), but we can do things to make sure they don’t destroy(毁坏) whole cities. First, it is not a 1 .________ idea to build houses along lines where 2. ________ of the earth’s plates(板块) join together. Second, if you think there 3. ________ be an earthquake, it is better to build houses on rocks , not on 4. ________. Third, you must make the houses as 5. ________ as possible. Weak buildings will fall down in an earthquake, but strong ones may 6. ________ . .
Scientists are 7. ________ that one day an even bigger earthquake will hit the part around San Francisco(旧金山) . They call it “ The Big One ”. However, people today are still building more 8. ________ . The population in and around San Francisco is 9. ________ ten times more than it was in 1906. This means that 10. ________ there is another earthquake, a great many houses and buildings will be destroyed.
