This paper aims at pointing out the existing disadvantages of questioning language in Chinese teaching class and puts forward concrete requirements and skills of questioning language so as to explore Chinese teaching methods in this new period with persons of the same profession and promote the teaching of our mother tongue.

However,the two intentions are the same in some interrogative speech acts,but different in the others.

using the methods of documentary,induction and expert discussion,this paper explained the effects and application of direction language in aerobics teaching.

The results of the experiment: Under the condition of "language prompting", the rate of right answer of the autistic children were lower than that of the retarded and normal young children;under the condition of "facial expression prompting", the rate of right answer of autistic children were equal to that of the retarded and normal y.

The paper from the theoretical and practical perspectives discusses the relationship between language resources and language problems and the formation,expression;classification and transformation of language resources as well as language safety plus a definition on "language problem" and "language safety".