听力原文:A tidal wave is a very large and very destructive wall of water that rushes in fr
Tidal waves have taken many human lives in the past. Today scientists can predict when a tidal wave will hit land. They use a seismograph to do this. A seismograph is an instrument that records the strength, the direction, and the length of time of an earthquake or seaquake. It is not possible to hold back a tidal wave, but it is possible to warn people that a tidal wave is coming. This warning can save many lives.
What does the Japanese word "tsunami" mean?
A.Tide.
B.Storm wave.
C.Earthquake.
D.Strong wind.