The article provides scientific and theoretical models for speech test and improves validity of Putonghua Proficiency Test by analyzing the theoretical basis and restriction of scope of speech test.

Of all the items of Standard Test of Putonghua,"speech"is the only one which has no written form,so it turns out to be the most difficult to evaluate.

Methods In a randomized auto-control study in 190 adult patients, oral temperature was measured before drinking hot water and at 0, 10,15 ,20 and 30 min after drinking hot water; self-paired trials were undertaken in another 42 adult patients concerning the effect of talking on temperature change; and still another 24 persons were enrolled in trials of drinking 50℃ and 60℃ water.

There is a hot argument over the evaluation of the Putonghua test item talking in practical operations.

On importance of rhythm of speech sounds in reading and speaking of standard Chinese——comments on assessing criteria of "cutlire of standard chinese Test";

Some thoughts about the "speaking" test item of PSC;

On the speaking ability in the standard Chinese proficiency test;

Rational Consideration on Communication-based Talk Item of PSC;

There is a hot argument over the evaluation of the PSC "talks".

This paper aims to analyze the reasons why non - pronunciation related mistakes are caused and puts forward some strategies for correcting such common mistakes in PSC " talks".