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Thebelief(33)animalscanpredictearthquakeshasbeenaroundforcenturies.In373B.C.it’srecordedthatanimalsincludingratssnakesandweasels(鼬鼠)desertedtheGreekcityofHelicesjustdaysbefore(34)quak

题目详情

The belief (33)_________ animals can predict earthquakes has been around for centuries.

In 373B.C. it’s recorded that animals including rats snakes and weasels (鼬鼠) deserted the Greek city of Helices just days before (34) ________ quake destroyed the place.

Since then there have been similar stories of animal prediction of earthquakes across the centuries. It has been reported that fish move fiercely chickens stop laying eggs and bees leave their hive in a panic. Lots of pet owners said that they (35) ________ (witness) their cats and dogs acting strangely before the ground shook ---- barking or whining for no reason or showing signs of nervousness.

But what animals (36) ________ sense if they do feel anything at all is a mystery. One idea is that animals feel the Earth shake before humans. Other ideas suggest they detect electrical changes in the air or gas released from the Earth.

Earthquakes are a sudden phenomenon. Seismologists(地震学家)have no way of knowing exactly when or where the next one will hit. About 500 0000 detectable quakes occur in the world each year (37)________ those 100 0000 can be felt by humans and 100 cause damage.

Japan is one of the countries (38)________ most earthquakes happen every year. Scientists there have long studied animals in hopes of discovering what they hear or feel before the Earth (39)________(shake) in order to use that sense as a prediction tool.

On the other hand American seismologists are doubtful (40)________ ________ there have been recorded cases of strange animal behavior before earthquakes.

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答案和解析

25. her      26. when    27. to find    28. locating  29. spotted        30. buried 

31. crying   32. what     33. that       34. a       35. had witnessed  36. can

37. of       38. where    39. shakes    40. even if/ even though