1. rise(太阳、月亮)升起，起来；(物价)上涨；(水)高涨
      rise—rose—risen—rising
      例句：①Everyone knows that the sun rises in the east.
      (每人都知道太阳是从东方升起。)
      ②Prices have risen quickly.
      (物价快速上涨了。)
      ③She rose to her feet.
      (她站了起来。)

2. raise举起；养育；募款
      raise—raised—raised—raising
      例句：①Raise your hand please.(请你把手举起来。)
      ②The farmer raises a lot of sheep on his farm.(这位农民在农场养了许多绵羊。)
      ③They are raising founds for the expedition.(他们正在筹募探险的基金。)

3. arise(问题、困难)发生、产生、出现；起(风、雾)
      arise—arose—arisen—arising
      例句：①A strong wind arose this morning.(今天早上刮起强风。)
      ②A different problem has arisen.(不同的问题发生了。)
      ③A mist arose from the lake.(湖上起雾了。)

4. arouse通常表示比喻或情绪方面的“激发”
      arouse─aroused─aroused─arousing
      例句：①The book aroused my interest in learning English.(这本书引起我对学习英语感兴趣。)
      ②The speaker aroused the anger of the audience.(演讲者激起了听众的怒气。)

5. rouse通常表示比较具体的“叫醒”或“唤醒”
      rouse─roused─roused─rousing
      例句：①The sound roused him from reflection.(声音使他从深思中惊醒。)
      ②The lies he heard about his friend roused his anger.(听到有人对他朋友造谣，使他怒火中烧。)