Read the following statements about skimming and scanning:
1. Scanning is a more thorough activity which requires an overall view of the text and implies a definite reading competence.
2. Scanning is far more limited than skimming because it only means retrieving the information that is relevant to our purpose.
3. It is usual to make use of these two techniques together (skimming and scanning) when reading a given text. 4. We may skim through an article first just to know whether it is worth reading, then read it through more carefully because we have decided that it is of interest.
Choose the correct alternative.
