population, great changes of the weather, shortage of natural resources, etc . He wanted to call people ’ s attention to these social problems , and he appealed that everyone should e aware of the serious situations they are in and we should highly realize the great significance of taking an action to solve these acute problems III. General Introduction about the Text III. General Introduction about the Text ? Try our best to protect our environment from being polluted; ? to control the rapid increase of population; ? to make a good use of the natural resources ; ? to trap more materials or energy; ? to save energy ,etc. ? otherwise, all animals and plant life will face a new threat to their survival. Some environmental situations now Comprehension questions for Para. 7
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