That the speech was expressive and clear to the person, it is necessary to resort to figurative thinking. It in turn also generates various stylistic figures and tracks. One of widespread means of expressiveness of language is comparison - the figure of speech directed to identification of similar line between the different phenomena and objects.
Instruction
1. A comparative turn is one of structural ways of use of comparison. Usually it is a part of the offer in which it is possible to allocate subject to comparison, means of comparison and the basis of comparison. A comparative turn is and there is means of comparison.
2. Formal sign of a comparative turn are the unions: "as" (most used), "as if", "as though", "as if", "precisely", etc.
3. If comparison happens when using such parts of speech as a qualitative adjective in comparative degree and an adverb, then the union is used "than". For example, "it is better, than yesterday".
4. Usually before the union which begins a comparative turn the comma is put. But not always this rule works. There is a mass of nuances which regulate writing of comparative turns, especially many problems arise with the union "as".
5. Distinguish comparative turns and set phrases (phraseological units). For example, expression "pours in buckets" is a phraseological unit as it independently also does not demand any further explanations. The comma before a steady turn is not put.
6. Difference of a comparative turn from phraseological is existence of free structure and the used words. If you try to remove at least one word from a phraseological unit and to replace with another, then senseless expression will turn out. For example, expression "the elephant in a crockery bench" loses the figurative sense if to replace it on "the person in a crockery bench".
7. Do not confuse a comparative turn with an ordinary subordinate clause of a circumstance. It is possible to distinguish them, having analyzed, this part of the offer is how independent if to remove a body. A comparative turn will lose the meaning, and the subordinate clause will be able independently to exist.