阅读下面这篇短文,短文后有2项测试任务:(1)1~4题要求从所给的6个选项中为第
2~5段每段选择1个正确的小标题;(2)第5—8题要求从所给的6个选项中选择4个正确的选项,分别完成每个句子。请写在相应的横线上。 Earthquake Every year earthquakes are responsible
for a large number of deaths and a vast amount of destruction in various parts
of the world. Most of these damaging earthquakes occur either in a narrow belt
which surrounds the Pacific Ocean or in a line which extends from Burma to the
Alps in Europe. Some of the destruction is directly caused by the quake itself.
An example of this is the collapse of buildings as a result of the quake itself.
Other damage results from landslides or major fires which are initiated by the
quake. These are about a million quakes a year. Fortunately,
however, not all of them are destructive. The intensity of an earthquake is
measured on the Richter Scale, which goes from upward. The highest scale
recorded to date is 8.9. Major damage generally occurs from quakes ranging
upward from 6.0. The actual cause of the quake itself is the
breaking of rocks at or below the earth’s surface. This is produced by pressure
which scientists believe may be due to a number of reasons, two of which are the
expansion and contraction of the earth’s crust and continental drift.
In order to limit the damage and to prevent some of the suffering
resulting from earthquakes, scientists are working on ways to enable accurate
prediction. Special instruments are used to help people record, for example,
shaking of the earth. Scientists are trying to find methods that will enable
them to indicate the exact time, location and size of an earthquake.
Certain phenomena have been observed which are believed to be the signs of
imminent earthquakes. These include strange behaviors of some animals, the
changes in the content of mineral water, etc. The magnetic properties of rocks
may also display special pattern before earthquakes happen. paragraph 2______A. Earthquakes forecast.