第三部分：概括大意与完成句子(第23～30题，每题1分，共8分)
阅读下面这篇短文，短文后有2项测试任务：(1)第23～26题要求从所给的6个选项中为第1、3、4、6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 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.
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 0 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 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 major earthquakes happen.
23 Paragraph 2 __________
24 Paragraph 3 __________
25 Paragraph 4 __________
26 Paragraph 5 __________
A Earthquake＇s Forecast
B Historical Records of Earthquakes
C Intensities o{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
