要自身的阅读能力，平时就需要托福考生多读一些资料，俗话说熟能生巧，多读多积累，才能不断进步。下面，北京新航道托福频道小编和大家分享一篇托福阅读材料，关于地震预报的，一起来读一读吧。

　　(一)

　　Earthquakes are a common geological phenomenon; they happen all over the world every single day. However, most of the earthquakes are too weak for humans to feel. Since the dawn of time, man has sought to forecast earthquakes due to the possibility of their devastating effects. Even though earthquakes cannot be forecasted or predicted with 100 percent certainty, there are some things that you can do to help forecast earthquakes.

　　Look at geologic maps to find the locations of past earthquakes. Maps showing the locations of past earthquakes are available from the United States Geological Survey (USGS). By looking at these maps, you can see where earthquakes may be likely to occur again based on where they have occurred in the past.

　　Obtain information on when earthquakes have occurred in the past. In some locations that have experienced multiple earthquakes in the past, there may be some periodicity or pattern to when those earthquakes occurred. Knowing this periodicity can help you forecast when an earthquake may occur in the future. The USGS also has information on when earthquakes have occurred.

　　(二)

　　Examine seismograms, tracings or recordings of seismic activity at a particular location. If you see an increase in seismic activity on a seismogram, a large earthquake may soon follow.来源：北京新航道托福培训

　　Observe rocks in various areas. Sometimes, rocks will contain layers of disturbed sediments that indicate ancient, severe earthquakes. Knowing the locations of these past severe earthquakes can indicate that future severe earthquakes may occur in these same areas.

　　Take note of foreshocks. Sometimes large earthquakes are preceeded by smaller earthquakes known as foreshocks. If small earthquakes are occuring in a particular area over a particular period of time, then a larger, more severe earthquake may be forecasted for that area.

　　Look at the behavior of animals. Although highly controversial, some animals, such as dogs and cats, may change their behavior patterns prior to an earthquake.

　　Think about tidal forces. Tidal forces as predictors of future earthquakes is an unproven theory. The phenomenon, known as syzygy, says that tidal patterns can be used to forecast earthquakes, especially those involving oceanic crust.

　　上面就是关于地震预报的托福阅读材料，希望大家从中既能够锻炼自己的阅读能力又能够学到的词汇和知识，为自己的考试做好更充分的准备，加油!

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