Level: intermediate/ upper intermediate
Grammar focus on: interrogative pronouns, relative pronouns
Activity: fill- in- the gap exercise (no pool of clues suggested)
Lyrics taken from: //www.directlyrics.com/alanis-morissette-guardian-lyrics.html
Linguistic aspects: The comparison as solid as a fog is not mentioned anywhere. You know perhaps as solid as a rock , but in the lyrics it has the meaning of confusing, difficult to understand (look up at FOG in http://www.macmillandictionary.com/dictionary/british/fog).
The adjective crestfall may stand for crestfallen, i.e. sad and disappointed.
Equal meaning for on call, on demand in the sense of on request.
To conclude, the song introduces three words with almost similar meanings, but be careful:
- a watchman/watchwoman (especially night watchman) guards a building especially at night;
- a guardian is a person or organisation that protects something or someone (e.g. guardian angel) or someone who looks after children with no parents;
- a warden is a person who checks that the rules of a precise building are respected (the head of a school, college or prison, etc.).