Find out the following words and phrases from Para. 4-15 (P3-4) based on the parts of speech and meanings provided. 1. [n.] principle 2. [n.] example 3. [v.] surprise sb very much 4. [adj.] considered by other people to be strange or unusual 5. [adj.] easy to understand and not needing any more explanation 6. [adv.] without much possibility of being wrong