Sinceantiquity,the （devastated 改为devastating effectsof earthquakes on human lives
(1) 把过去分词"devastated" 改为现在分词"devastating"
and property(加 have encouraged） the search for reliable methodsof earthquake
(2) 在过去分词"encouraged" 前面加上助动词"have"
prediction.And scientists continue to seek methods （to pinpoint 改为for pinpointing ）the time
(3) 将" to pinpoint " 改为 "for pinpointing"
and place of quakes.Oneprediction technique involves (in 去掉) an analysis of
(4) 将介词" in "去掉
the recurrence rates ofearthquakes （for改为as）indicators of future seismic
（5） 将介词 " for " 改为介词" as"
activity.Earthquakes are concentrated in certain areasof the world (that 改为where)
(6) 将关系代词"that "改为关系副词"where"
tectonic plates meet andcreate fault zones and it is in these areas that
seismologists focus ( on 去掉) their investigations.The plate tectonics model
(7) 将介词" on"去掉
provides （other 改为another ）tool for quake prediction by calculating the accumulated
(8) 将不定代词"other " 改为不定代词“ another”
strain at plateboundaries.When the strain reaches (one 改为a ) certain magnitude
（9） 将不定代词"one " 改为不定代词“ a”
（加the pressure） must be released.Modern seismologists use chemical detection
(10) 名词词"pressure" 前面加上定冠词"the"
techniques to establish alink between the rise (on 改为 in)the concentration of radon
(11) 将介词 " on " 改为介词" in"
gas in mineral water andthe subsequent earthquake in 1966.