阅读下面这篇短文，短文后有两项测试任务：(1)第23_26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27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。
Earthquake
1．Every year earthquakes are responsible for a large number of deaths and a vest 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 quakes itself．An example of this is the collapse of buildings as a result of the quake itself,0ther damages result from landslides or major fires which are initiated by the quake．
2．There 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 zero upward. The highest scale recorded to date is 8. 9. Major damage generally occurs from quakes ranging upwards from 6.0.
3. 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.
4. 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.
5. Certain phenomena have been observed which are believed to be 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 major earthquakes happen.
23. Paragraph 2
24. Paragraph 3
25. Paragraph 4
26. Paragraph 5
A. Earthquake forecast
B. Historical records of earthquakes
C. Intensities of earthquakes
D. Cause of earthquakes
E. Indications of earthquakes
F. Damaging earthquakes
27. Not all damage during an earthquake is caused
28. Not all earthquakes are strong enough
29. Scientists have been working hard to warn people
30. Earthquakes can be predicted by observing
A. by the quake itself
B. not be prevented
C. to cause damage of property and loss of lives
D. of a possible earthquake
E. the unusual behaviors of some animals
F. the strong behaviors of human beings
参考译文
地 震
地震每年都会在世界各地造成许多死亡和重大危害。大部分破坏性的地震都发生在环太平洋的狭窄地带或者是从缅甸到欧洲的阿尔卑斯山沿线。一些破坏是直接由地震引起的。这其中的一个例子就是由地震所引起的建筑物的倒塌。其他的灾害起因于由地震所导致的滑坡或者大火。
一每年大约会发生l00万次地震。幸运的是，不是所有的地震都具破坏性。地震的强度用里氏震级测定，从零级递增。迄今有记录的最高震级是8.9级。重大灾害一般是由6.0级以上的地震引起的。
地震真正的起因是由于地球表层或者表层以下岩层的.断裂所引起的。科学家们相信造成断裂的压力是由多种原因产生的。其中两个主要原因就是地壳的膨胀和收缩以及大陆板块的漂移。
为了减少损害，使人们免受地震之苦，科学家们正在寻求准确的预报方法。科学家们借助一些特制的仪器来记录地球的震动，并正在努力寻求能够预报确切时间、地点和震级的方法。
人们观察到某些现象是地震即将到来的征兆。这包括一些动物奇怪的行为，水里矿物质成分的变化。在大地震到来之前，岩石磁性也会呈现出特殊的状态。
