问题描述：
Earthquakes are one of the most terrible kinds of natural disasters.We cannot p 1 them,and we do
Earthquakes are one of the most terrible kinds of natural disasters.We cannot p 1 them,and we don’t know w 2 they will happen.This makes earthquakes very d 3 .Recently,t 4 have been big earthquakes in China,Japan,India,and El Salvador.
What c 5 earthquakes?Well,all the countries and oceans are sitting on large pieces of rock that forms the surface of the earth.These large pieces of rock are called plates（板块）.The plates are all a 6 the earth.They fit together l 7 a big puzzle（谜团）,that is,something difficult to understand or explain.Earthquakes happen when two plates m 8 against each other.Some part of the earth shakes up and down,like an ocean w 9 .
We do not know the exact time and the place that an earthquake will happen,but we can do some things to keep ourselves s 10 .We can make tall buildings and houses stronger.And we can teach people what to do if there is an earthquake.This way,we can make these natural disasters just a little bit less terrible.
Earthquakes are one of the most terrible kinds of natural disasters.We cannot p 1 them,and we don’t know w 2 they will happen.This makes earthquakes very d 3 .Recently,t 4 have been big earthquakes in China,Japan,India,and El Salvador.
What c 5 earthquakes?Well,all the countries and oceans are sitting on large pieces of rock that forms the surface of the earth.These large pieces of rock are called plates（板块）.The plates are all a 6 the earth.They fit together l 7 a big puzzle（谜团）,that is,something difficult to understand or explain.Earthquakes happen when two plates m 8 against each other.Some part of the earth shakes up and down,like an ocean w 9 .
We do not know the exact time and the place that an earthquake will happen,but we can do some things to keep ourselves s 10 .We can make tall buildings and houses stronger.And we can teach people what to do if there is an earthquake.This way,we can make these natural disasters just a little bit less terrible.
问题解答：
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