With the emphasis on communication, there is also the implication that spoken exchanges should be authentic and meaningful; detractors claim that the artificial nature of classroom–based (i.e. teacher - created) interactions makes CLT an oxymoron. Nevertheless, a proficient teacher will provide a context so that class interactions are realistic and meaningful but with the support needed to assist students to generate the target language. We need to consider that producing language is a skill and when we learn a skill we practise in improvised settings. For example, before a nurse gives a real injection, they have punctured many a piece of fruit to hone their technique.
Accuracy as Well as Fluency
It might also be argued that the extent of some of the structures or functions may never be used in real life. One example is adjective order; I have given students an exercise where they have to produce a phrase with a string of adjectives, such as "a strong, orange, Norwegian, canvas tent." This is very unnatural, as most times we only combine two or three