Decide whether the following statement is true or false. 1. With the development of our society, human beings become more and more independent. 2. The imperfect tools prevented our ancestors from satisfying their needs. 3. People in ancient times tended to see the nature’s elemental forces as friendly. 4. Deforestation originally was due to human’ s fear of forest. 5. As time goes on, mankind begins to look for other resources to take the place of natural resources.