首頁 課程  書店 學校  題庫 論壇  網校  地方分站: 北京 | 上海 | 鄭州 | 天津
 新托福考試網
 考試資訊  報考指南  備考寶典  考場經驗  閱讀輔導  真題  模擬題   學友圈   精品網校課程
   聽力 | 寫作 | 閱讀 | 口試   北京新航道托福精品課程   環球雅思托福熱門課程   新東方托福網絡課程   啟德托福   托福考試答疑區

托福閱讀:How to Forecast an Earthquake(1)

作者:不詳   發布時間:2010-04-27 15:27:29  來源:網絡
  • 文章正文
  • 網校課程
  • 資料下載
  • 熱門話題
  • 論壇

  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.

熱門資料下載:
新托福考試論壇熱貼:
【責任編輯:育路編輯  糾錯
新托福培訓咨詢電話:010-51294614
報考直通車
 
·新托福最近考試時間:2010年6月26日。
·考試內容:閱讀、 聽力、口語、寫作。
課程推薦
                   
 新托福考試輔導
亚洲中国久久精品无码,国产大屁股视频免费区,一区二区三区国产亚洲综合,国产AV无码专区毛片
亚洲综合色在线观看一区二区 | 日本香港一区二区三区视频 | 中文字幕精品亚洲无线一男人 | 亚洲综合在线香蕉 | 一区本道在线一区三区 | 亚洲一成A人片在线 |