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  3. Humans are forever forgetting that they can’t control nature.Exactly twenty

Humans are forever forgetting that they can’t control nature.Exactly twenty

游客2024-12-03  31
问题     Humans are forever forgetting that they can’t control nature.
Exactly twenty years ago, the Time magazine cover story announced【M1】______
that "scientists are on the verge of being able to predict the time, place
and even the size of earthquakes". The people of quake-ruined Kobe
(神户)learned last week how wrong that assertion was. All of the【M2】______
methods raised two decades ago have succeeded. Even now, scientists
have yet to discover a uniform warning signal that precedes all quakes,
let alone any sign would tell whether the coming quake is mild or a【M3】______
killer. Earthquake formation can be triggered by many factors, says
Hiroo Kanamori, a seismologist at the California Institute of Technology.
    So, finding one all-purpose warning sign is impossible.
One reason: Quakes start deeply in the earth, so scientists can’t study【M4】______
them directly. If a quake precursor were found, it would still be
impossible to warn humans at advance of all dangerous quakes.【M5】______
Places like Japan and California are full with hundreds, if not【M6】______
thousands, of minor faults(断层). It is impossible to place
monitoring instruments on all of them And these inconspicuous sites
can be just as deadly their better-known cousins like the San Andreas.【M7】______
Both the Kobe and the 1994 Northridge quakes occurred in small【M8】______
faults. Prediction would be less important if scientist could easily build
structures to withstand tremors. While seismic engineering has been【M9】______
improved dramatically in the passed 10 to 15 years, every new quake【M10】______
reveals unexpected weaknesses in "quake-resistant" structures, says
Terry Tullis, a geophysicist at Brown University. [br] 【M5】
选项
答案 at→in
解析 词汇错误。in advance of是固定搭配，意为“在……前面”。
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